Service Manuals, User Guides, Schematic Diagrams or docs for : LG Mobile Phone LG U8500 LG U8500

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.



Image preview - the first page of the document



>> Download LG U8500 documenatation <<

Text preview - extract from the document

7. CIRCUIT DIAGRAM




                                                                                    ANT1000
                  ANT1001
                                                                                                                                                                                                                                                                                                                         ANT_SEL2          ANT_SEL1 ANT_SEL0           GSM_PA_BAND               MODE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                    TX_VCO_EN_0_N               TX_VCO_EN_1_N
                                                                                                                                                                                                                                                                                       GSM 900 TX                             LOW            LOW      HIGH                LOW                     GSM
                                                                                                                                                                                                                                                                                                                                                                                             DCS/PCS                                           GSM900                       HIGH                          LOW
                                                                                                                                                                                                                                                                              GSM 900 RX/WCDMA                                LOW            LOW      LOW                 HIGH
                                                                                                                                                                                                                                                                          DCS1800/PCS1900 TX                                  HIGH           HIGH     LOW                                                                             DCS1800/PCS1900                       LOW                          HIGH
                                                   SW1002
                            C1230                 G2
                                            ANT        RF                                                                                                                                                                                                                             DCS 1800 RX                             LOW            HIGH     LOW
                                                  G1                                                                                                                                                                                                                                                                                                                                                                                             OFF                        HIGH                         HIGH
                             15p                                                                                                                                                                                                                                                      PCS 1900 RX                             HIGH           LOW      LOW
                                                   KMS-512
        L1035           L1034         C1112
       4.7nH             15nH         0.5p                                                                                C1111        33p

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             L1032           3.3nH




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       L1023
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2.2uH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         DAC_REF
                                                                                                                                                                                      M054E




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          150p
                                                                                                                                                                                                     U1006




                                                                                                                                                                                      7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              TX_IM




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       L1022
                                    L1031    7.5nH




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2.2uH
                                                                                           FXL4T245BQX            U1008                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              L1018




                                                                                                                                                                                    ANT
                                                                                             1                             9                              2                                         12                                                                                                                                                                                                                                                                                                                                                                                                                                                                               3.6nH
   VREG_RFRX_0_2.85V                                                                           VCCA                _OE                                      CTRL1                             RX_DCS1




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C1096
                                                                                            14                                                            4                                         13
                                                                                               VCCB                                                         CTRL2                           RX_DCS2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           TX_IP




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       L1024
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2.2uH
                                                                                                                           6                             11                                         14
                                                                    C1108                                          T__R                                     CTRL3                           RX_PCS1
                                                                                                   7                                                     20                                         15                                                                                                                                                                                                                                                                                                                                                                                               1930-1990 MHz
                                                                    0.1u                             GND1                                                      CTRL4                        RX_PCS2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          C1088
                                                                                                   8                                                                                                16




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          150p
                                                                                                     GND2                                                                                  RX_EGSM1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          1000p                                                                                                                                                            TX_QM




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       L1021
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       2.2uH
                                                                                                  15                                                                                                17                                                                                                                                                                                                                                                                                                                                                                                                                                                                               L1019
                                                                                                     BGND                                                                                  RX_EGSM2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     3.6nH




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          C1095
                                                                                                  13                       2                              8                                                                  3                                                                                                                                                                                                                                                                                                                                                                                                               L1033           3.3nH
                ANT_SEL0                                                                          12
                                                                                                     B0                 A0
                                                                                                                           3
                                                                                                                                                               UMTS                        TX_DCSPCS
                                                                                                                                                                                                                             1
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              TX_QP
                ANT_SEL1                                                                          11
                                                                                                     B1                 A1
                                                                                                                           4
                                                                                                                                                                                             TX_EGSM
                                                                                                                                                                      GND6
                                                                                                                                                                             GND5
                                                                                                                                                                                    GND4
                                                                                                                                                                                    GND3
                                                                                                                                                                                           GND2
                                                                                                                                                                                                  GND1
                ANT_SEL2                                                                          10
                                                                                                     B2                 A2
                                                                                                                           5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 VREG_RFTX_2.85V
                                                                                                     B3                 A3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   R1022
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   C1093                                                               VREG_RFTX_2.85V




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              L1020
                                                                                                                                                                        19
                                                                                                                                                                        18
                                                                                                                                                                        10
                                                                                                                                                                         9
                                                                                                                                                                         6
                                                                                                                                                                         5




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              47nH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   33p                                                           10
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         C1091
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              L1029       5.1nH                                    VREG_RFRX_0_2.85V                                                                                                                                                                                                     0.1u




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         L1008
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    C1094




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         47nH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      C1089
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       0.1u




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             33p
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   L1016                                                                                                                                                                                                                                                                                                                      VREG_SYNTH_2.85V




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              C1050
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 C1052
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   7.5nH
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 0.1u




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 L1009
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      33p
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       28
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       27
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       26
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       25
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       24
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       23
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       22
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       21
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       20
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       19
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       18
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       17
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       16
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       15




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 47nH
                                                                                                                                                                                                              GSM_PA_RAMP




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             FAQ2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VDDA8
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VDDA7
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       GSM1900_INP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       GSM1900_INN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VDDA6
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        GSM850_INP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        GSM850_INN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          DAC_REF
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             TX_IN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             TX_IP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            TX_QN
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            TX_QP
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            VDDA5
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        1805-1880 MHz
                                                                                                                                                                                                                                                                                                                                     

◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo