Service Manuals, User Guides, Schematic Diagrams or docs for : BEKO TV 20`` LCD TV 20LCD TV SCHEMATIC 20LCD_MCU

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20LCD_MCU


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                                                                                                                                                                                                                                                                                                                                                             +5V_M                                                                                                                 2.5V_M
                                                                                                                                                                                                                                                                                                                                                                                                                      U503                                                                        TP217                                                            A2.5V_M
                                                                                                                                                                                                                                                                                                                                                                                                                      MC33375ST-2.5                                                               TESTPAD
                                                                                                                                                                                                                                                                                                                                                                                                               1       VIN            VOUT           3
                                                                                                                                                                                                                                                                                                                                                                         L500                                                                                                                           L502
                                                                                                                                                                                                                                                                                                                                                                         FERRIT BEAD                                                                                          C507                      FERRIT BEAD               C510        C511         C512




                                                                                                                                                                                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                                                                                          C504                 2                                                              22uF
                                                                                                                                                                                                                                                                                                                                                                                          22uF                         ON/OFF                                                                                                     22uF        0.1uF        0.1uF
                                                                                                                                                                                                                                                                                                                                                                                          22uF/10V                                      SOT223                                22uF/10V

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   D2.5V_M




                                                                                                                                                                                                                                                                                                                                                                                                                                 4
                                                                                                                                                                                                                                                                                                                                                                                                 GND                                                                                 GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         GND
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          L503
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          FERRIT BEAD             C513        C514         C515
                                                                                                                                                                                                                                                                                                                                                                                                                                  GND
D                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 22uF        0.1uF        0.1uF                         D
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   3.3V_M
                                                                                                                                                                                                                                                                                                                                                                                                                      U504                                                                      TP218
                                                                                                                                                                                                                                                                                                                                                                                                                      MC33375ST-3.3                                                             TESTPAD
                                                                                                                                                                                                                                                                                                                                                     TP216                                                     1       VIN            VOUT           3                                                                                   GND
                                                                                                                                                                                                                                                                                                                                                     TESTPAD             L501                                                                                                                                                                                                  D3.3V_M




                                                                                                                                                                                                                                                                                                                                                                                                                                  GND
                                                                                                                                                                                                                                                                                                                                                                         FERRIT BEAD                                                                                          C508
                                                                                                                                                                                                                                                                                                                                                                                          C505                 2                                                              22uF
                                                                                                                                                                                                                                                                                                                                                                                          22uF                         ON/OFF                                                                           L504
                                                                                                                                                                                                                                                                                                                                                                                          22uF/10V                                      SOT223                                22uF/10V                  FERRIT BEAD         C516          C517         C518         C519        C520
                                                                                            D3.3V_M




                                                                                                                                                                                                                                                                                                                                                                                                                                 4
                                                                                                                RN500 10K                                                                                                                                                                                                                                                                        GND                                                                                                                        22uF          0.1uF        0.1uF        0.1uF       0.1uF
                                                                                                        1                        8                                                                                                                                                                                                                                                                                                                                                   GND                                    10V

                                                                                                        2                        7                                                                                                                                                  HDATA[0..3]
                                                                                                                                                                                                                                                                                                                     HDATA[0..3]
                                                                                                        3                        6                                               HDATA0
                                                                                                        4                        5                                               HDATA1                                                                                                                                                                                                                                           GND                                                                                   GND
                                                                                                                                                                                 HDATA2
                                                                                                                                                                                 HDATA3
                                                                                                        1                        8                                               HCLK/SCL
                                                                                                        2                        7                                               HFS/SDA
                                                                                                                                                                                                                                                                                                               HCLK
                                                                                                        3                        6                                                                                                                                                                             HFS
                                                                                                        4                        5                                               /IRQ
                                                                                                                                                                                                                                                                                                                                                                                          /IRQ
                                                                                                                                                                                 PNL_EN
                                                                                                                                                                                                                                                                                                                                                                                          PNL_EN
                                                                                                                RN501 10K
                                                  Q500
                                                  2N7002                                                                                                                                                                 A2.5V_M D2.5V_M                D3.3V_M


                                                                         R500
                                                                         3.3K           D3.3V_M                                D2.5V_M                                                                                                                                                                                                                                                                                           3.3V_M




                                                                                                                                                                                                                         26
                                                                                                                                                                                                                         57


                                                                                                                                                                                                                                      14
                                                                                                                                                                                                                                      68



                                                                                                                                                                                                                                                 16
                                                                                                                                                                                                                                                 43
                                                                                                                                                                                                                                                 70
                                                                                                                                                                                                                                                 1
                                                                                                        D3.3V_M                                                                                                                                                                                                                                                                                                                             C509
                                                                                                                                                                                                                                                                            U501                                         A[0..18]




                                                                                                                                                                                                                         VDDA2.5
                                                                                                                                                                                                                         VDDA2.5


                                                                                                                                                                                                                                       VDD2.5
                                                                                                                                                                                                                                       VDD2.5


                                                                                                                                                                                                                                                  VDD3.3
                                                                                                                                                                                                                                                  VDD3.3
                                                                                                                                                                                                                                                  VDD3.3
                                                                                                                                                                                                                                                  VDD3.3
                                                                                                                                                                                     HDATA0              17      P0.0                                            A19/P4.4      63                                                                    3.3V_M       C506                                                                      0.1uF




                                                                                                                                                                                                                                                                                                                                                                                                                                 8
                                                                                                                                                                                     HDATA1              18      P0.1                                            A18/P4.1      64   A18                                                                                                                                                                      GND
                                                                                                R502              R503                                                               HDATA2              19                                                                    66   A17                                                                                                                                                              U505
                                                                                                                                                                                                         20      P0.2                                            A17/P4.0                                                                                         0.1uF                                          20                                     21                                                     CN503
                                                                                                                          D500                                                       HDATA3                                                                                                                                                                                                              A0                                                              D0




                                                                                                                                                                                                                                                                                                                                                                                                                                  VCC
                                                                                                                                                                                                                 P0.3                                                                                                                                                                                                      A0               DQ0




                                                                                                                                                                                                                                                                                                                                                      8
                                                                         Q501                   3.3K              10K     BAS40-05                                                   HCLK/SCL            21                                                                    65   A16                                                                                        GND                       A1      19                                     22               D1                     TP151   /RST                      GND TP182
                                                                                                                                                                                                         22      P0.4                                                A16       67                                                                                      U502                                      18        A1               DQ1         23                                      TP152   D3       16    17         D2 TP181
C                       SDA5V                                            2N7002                                                                                                      HFS/SDA
                                                                                                                                                                                                                 P0.5                                                A15
                                                                                                                                                                                                                                                                                    A15                                                                                                                  A2
                                                                                                                                                                                                                                                                                                                                                                                                                           A2               DQ2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                         D2
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 15    18                                                                C
                                                                                                                                                                                     SDA                 23                                                                    71   A14                                             A0    20                              21     D0                      A3      17                                     25               D3                     TP153   D4                        D1 TP180




                                                                                                                                                                                                                                                                                                                                                       VCC
                                                                                                                                                                                                                 P0.6                                                A14                                                                       A0                IO1                                                       A3               DQ3                                                                  14    19
                        SCL5V                                                                                                                                                        SCL                 24      P0.7                                                A13       73   A13                                             A1    19   A1                IO2      22     D1                      A4      16        A4               DQ4         26               D4                     TP154   D5       13    20         D0 TP179
                        SC2_St   SC2_St
                                                                                                                                                                                                                                                                     A12       72   A12                                             A2    18   A2                IO3      23     D2                      A5      15        A5               DQ5         27               D5                     TP155   D6       12    21         A0 TP178
                       /RESET                       /RESET                                                                                                                                               44      P1.0                                                A11       79   A11                                             A3    17   A3                IO4      25     D3                      A6      14        A6               DQ6         28               D6                     TP156   D7       11    22         A1 TP177
                        SC1_St   SC1_St                                                                                                                                                                  45      P1.1                                                A10       83   A10                                             A4    16   A4                IO5      26     D4                      A7      13        A7               DQ7         29               D7                     TP157   A2       10    23         A10 TP176
                                                                                                            3




                                 SC1_FBL                               +5V                                                                                                           /SC1_FBL            46                                                                    77   A9                                              A5    15                              27     D5                      A8       3                                                                             TP158   A3                            TP175
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /PSEN
                       SC1_FBL                                                                                                                                                                           47      P1.2                                                 A9       75   A8                                              A6    14   A5                IO6      28     D6                      A9       2        A8                                                                   TP159   A4       9     24         A11 TP174
                                                                                    R501          1               Q502                                                               PNL_EN              48      P1.3                                                 A8                                                            A7    13   A6                IO7      29     D7                      A10     31        A9                                                                   TP160   A5       8     25         A9 TP173
                                                                R505                                              BC848B                                                             /BKLT_EN            49      P1.4                                                          74   A7                                              A8     3   A7                IO8                                     A11      1        A10                                                                  TP161   A6       7     26         A8 TP172
                                                                10K                 1K                                                                                                                           P1.5                                                 A7                                                                       A8                                                                          A11                                                                                   6     27
                                                                                                R504                                                                                 /STDBY              50      P1.6                                                 A6       76   A6                                              A9     2   A9                                                        A12     12        A12                                                                  TP162   A15      5     28             TP171
                                                                                                4.7K                                                                                                     62                                                                    78                                                         31                                                                      4                                                                             TP163   WE                        A7 TP170
                                                                                                            2




                                                                                                                                                                                                                                                                                    A5                                              A10                                                                  A13
                                                                                                                                                                                                                 P1.7                                                 A5                                                                       A10                                                                         A13                                                                                   4     29
                                                                     3




                         MSRES                                                                                                                                         10K                                                                                            A4       80   A4                                              A11    1   A11                                                       A14      5        A14                                                                  TP164   A12      3     30         A13 TP169
                                                                                                                                                              R507                                TP215 34                                                                     82   A3                                              A12   12                                                             A15     11                                                                             TP165   A17                       A14 TP168
                                                                Q503                                                                                                                                             P3.0                                                 A3                                                                       A12                                                                         A15                                                                                   2     31
            3.3V_M
                 L508FERRIT BEAD                                                    1                                                                                                /IRQ               35       P3.1                                                 A2       2    A2                                              A13    4   A13                                                       A16     10        A16                                                                  TP166   A18      1     32         A16 TP167
                                                              BC848B                                        GND                                                                      IR                 36                                                                     3    A1                                              A14   11                                                             A17      6
                                                                                                                                                                                     LED_GRN            37       P3.2                                                 A1       5    A0                                              A16    7   A14                                                       A18      9        A17                                                                                  HEADER2X16
             CN501 TP144                                                                                                                                                                                38       P3.3                                                 A0                                                                  10   A15                                                                         A18                                                                          Service connector_Flash programing
                                                                     2




                                                                                                                                                                                     LED_RED                                                                                                                                        A17
                                                                     GND                                                                                                             MUTE               39       P3.4                                                                                                                          A16                                                               30
                   1                                /STDBY             TP150                                                                                                                            40       P3.5                                                          4         D7                3.3V_M                   A15   30                              9                            /PSEN     32        CE
                   2                                                                                                                                                                                             P3.6                                                 D7                                                                       CS1               NC                                                        OE
                   3             LED_RED    TP146                                                                                                                                                       41       P3.7                                                 D6       6         D6                                                                                                              WE       7        WE




                                                                                                                                                                                                                                                                                                                                                                                                                                  VSS
                   4             IR                 TP147                                                                                                                                                                                                             D5       8         D5                                               6    CS2
                                 KEY_PMU TP148                                                                                                                                       KEY_PMU             28                                                                    10        D4
                   5                                                                                                                                                                                             P2.0                                                 D4                                                                                                                                  R521
                   6             KEY_DRL                                                                                                                                             KEY_DRL             29      P2.1                                                 D3       12        D3                          /RAMRD               32   OE                                                                                                    29LV040




                                                                                                                                                                                                                                                                                                                                                       VSS
                                                                                                                                                                                                         30                                                                    11        D2                                                5                                                              1K




                                                                                                                                                                                                                                                                                                                                                                                                                                 24
                                                                                                                                                                                                                                                                                                                     /RAMWR
                   7                                                                                                                                                                                     31      P2.2                                                 D2       9         D1
                                                                                                                                                                                                                                                                                                                                               WE
             B7B                             R519    R520                                                                                                                                                        P2.3                                                 D1       7         D0                                                                            K6T1008V2E-TB         3.3V_M
    Keypad Connector   TP149                 1K      1K                                                                                                                              /RAMRD              51                                                           D0




                                                                                                                                                                                                                                                                                                                                                      24
                                                                                                                                                                                     /RAMWR              52      P4.2
                                                                                                                                                                                                                 P4.3
                                      D2.5V_M       O_VS                                                                                                                                                 33      P4.7/VS/OE                                                                                                                                                                                                       GND
                    L509                                                                                                                                             C500    0.1uF
              FERRIT BEAD                        CVBS_Out                                                                                                                                                25      CVBS                                                                                                                                 GND
                                                    O_HS                                                                                                                                                 32      HS/SC                                                                                     D[0..7]


                           GND                                    GND        3.3V_M /RST         R526                                                                                                    53
                                                                                                                                                                                                                 RST                                                                                                                                                                                                       D3.3V_M
                                                                                                 1K
                                          U500            C526                                          C525                                             XTAL2                                           54
                                                          0.1uF
                                                          2               R525                          4.7nF                                            XTAL1                                           55      XTAL2                                                                                                                                                                                         D501
                                              VCC                                                                                                                                                                XTAL1
                                                                          47R                                                                                                                                                                                                                                                                                                                                                                            TP502
B                                            RSTN         1                                                     GND                                                                                      58      R                                                 PSEN        81   /PSEN                                                                                                                                                                EVSS                                                                                                                            B
                                                                                                                 X500                    C501         C502                                               59      G                                                XROM         13                                                                                                         TP500                BAS40




                                                                                                                                                                                                                                                                                                                                                                                                                                                             1
                                              GND         3                                                                                                                                              60      B                                                                                                                                                                           1
                                                                                                                                         33pF         33pF                                               61
                                                                                                                                                                                                                                       VSSA
                                                                                                                                                                                                                                       VSSA




                                                                                                                                                                                                                 BLANK/COR
                                                                                                                                                                                                                                                  VSS
                                                                                                                                                                                                                                                  VSS
                                                                                                                                                                                                                                                  VSS
                                                                                                                                                                                                                                                  VSS




                                          DS1818B                                                                                                                                                                                                                                                                                                                                         EVCC                         U506
                                                                                                                  6MHz                                                                                                                                                                                                                                                                                         8                                 1
                                          Reset Circuit        GND                                                                                                                                                                                                          SDA5550                                                                                                                            7       VCC             A0        2
                                                                                                                                                GND                                                                                                                                                                                                                                                            6       WP              A1        3
                                                                                                                                                                                                                                      27
                                                                                                                                                                                                                                      56


                                                                                                                                                                                                                                                 15
                                                                                                                                                                                                                                                 42
                                                                                                                                                                                                                                                 69
                                                                                                                                                                                                                                                 84




                                                                                                                                  R527                                                                                                                                                                                                                                                                                 SCK             A2
                                                                                                                                                                                                                                                                                                                                                                                                               5       SI             VSS        4
                                                                                                                                  100R
                                                                                                                                                                                                                                                                                                                                                                                              GND                      M24C16-RMN1T

                                                                         +5V                                                                                                                                                                    GND                                                                                                                              TP501                                TP503
                                                                                                                           +5V                                                                                                                                                                                                                                                                                                                           GND
                                                                   Q505                                                                                      +5V                                                                                                                                                                                                                      1                                1
                                                                  BC848B                 R510                         Q506                                                           



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