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15" LCD Color Monitor                                                                                                                                                                                                              AOC 152V
6. Schematic
6.1 Main Board
   715G1558-3-2


                                                   TSUM16AK                                      XGA/SXGA
                                                                                                                        SCHEMATIC
                                                                                                                             LVDS OUTPUT
                                                  B3                                               B4


                                    +5V                                RIN                              RIN
                                                                     GNDR                               GNDR
                                                                       GIN                              GIN
                                                                     GNDG                               GNDG
                                                                      SOG                               SOG
                                                       +5V             BIN                              BIN
                                                                     GNDB                               GNDB
                                                                   HSY NC                               HSY NC                                  VCC1.8    VCC3.3 +5V     +12V
                                                                    VSY NC                              VSY NC
                                                                 DDCA_SDA                               DDCA_SDA
                                                                 DDCA_SCL                               DDCA_SCL
                                                                  DET_VGA                               DET_VGA

                                                                   DDC_WP                               DDC_WP                      VCC1.8
                                                                        R+                              R+
                                                                         R-                             R-                            Vcc3.3
                                                                        G+                              G+
                                                                         G-                             G-                               +5V
                                                                        B+                              B+
                                                                         B-                             B-                              +12V
                                                                      CLK+                              CLK+
                                                                       CLK-                             CLK-
                                                                 DDCD_SDA                               DDCD_SDA
                                                                 DDCD_SCL                               DDCD_SCL
                                                                   DET_DVI                              DET_DVI
                                                  3.INPUT




                                                                                                                                                                         B5

                                                                                                                                                   PA[0..7]
                                                                                                                                     PA[0..7]                                 PA[0..7]
                                                                                                                                                   PA[8..13]
                                                                                                                                    PA[8..13]                                 PA[8..13]
                                                                                                                                                   PA[14..19]
                                                                                                                                  PA[14..19]                                  PA[14..19]
                                                                                                                                                   PB[0..5]
                                                                                                                                     PB[0..5]                                 PB[0..5]
                                           +12V                                                                                                    PB[6..11]
                                                                                                                                    PB[6..11]                                 PB[6..11]
                                    PC5V                                                                                                           PB[12..23]
                                                                                                                                  PB[12..23]                                  PB[12..23]
                             +3V3                                                                                                                  GPO[0..4]
                                                                                                                                  GPO[0..4]                                   GPO[0..4]                 VLCD   VLCD_12V
                    VCC1.8
                                                                                                                                        ESP                                   ESP
              +5V
                                                                                                                                        OSP                                   OSP          VLCD
          VCC5V                                   B2
                                                               on_BACKLIGHT                             on_BACKLIGHT                                                                VLCD_12V
     VCC3.3
                                                                    on_Panel                            on_Panel
                                                               on_PANEL_12V                             on_PANEL_12V
                                                       +12V
                                                       PC5V
                                                       +3V3
                                                                      VCTRL                             VCTRL                                                            5.PANEL INTERFACE
                                                       VCC1.8
                                                       +5V    Adj_BACKLIGHT                             Adj_BACKLIGHT
                                                       VCC5V
                                                        VCC3.3                 VLCD   VLCD_12V

                                                                                                                                                                 Title
                                                                       VLCD                        4.SCALER
                                                                                                                                                                                                   TSUM16AK
                                                                  VLCD_12V                                                                                       Size     Document Number                                              Rev
                                                  2.POWER                                                                                                           B                              TOP                                  A
                                                                                                                                                                 Date:          Monday , May 09, 2005          Sheet      0   of   5




                                                                                                                         16
15" LCD Color Monitor                                                                                                                                                                                                                                                                                                                                                                            AOC 152V
                                         +5V
                                                                    U701
                                                                          SOT-223
                                                                    NC/LT1117-18
                                                                                                                                              +3V3                                        H1                           H2                       H3
                                                                                                                                                                                                                                                                                                                                                                   R702
                                                                                                                                                                                                                                                                                                                                                                              VCTRL   4

                                                                3                        2
                                                                     VI           VO                                                                          +3V3




                                                                                                                                                                                          8
                                                                                                                                                                                          7
                                                                                                                                                                                          6




                                                                                                                                                                                                                       8
                                                                                                                                                                                                                       7
                                                                                                                                                                                                                       6




                                                                                                                                                                                                                                                8
                                                                                                                                                                                                                                                7
                                                                                                                                                                                                                                                6
                                                                                                                                                                                                                                                                                                                                                                   51 1/16W
                                                                                         4                                                                                            9                5           9             5          9                  5




                                                                           GN D




                                                                                                                                                                                           8
                                                                                                                                                                                           7
                                                                                                                                                                                           6




                                                                                                                                                                                                                        8
                                                                                                                                                                                                                        7
                                                                                                                                                                                                                        6




                                                                                                                                                                                                                                                 8
                                                                                                                                                                                                                                                 7
                                                                                                                                                                                                                                                 6
                                               C701                               VO             C703         +                  C704                                                     9      5     4                9   5    4              9         5    4
                                                                                                                                                                                                 4                          4                             4                                                                                                                     VCC1.8




                                                                                                                                                                                           1
                                                                                                                                                                                           2
                                                                                                                                                                                           3




                                                                                                                                                                                                                        1
                                                                                                                                                                                                                        2
                                                                                                                                                                                                                        3




                                                                                                                                                                                                                                                 1
                                                                                                                                                                                                                                                 2
                                                                                                                                                                                                                                                 3
                                               NC                                              100uF/25V                         NC                                                                  TP                         TP                            TP                                                                                                  + C702




                                                                          1




                                                                                                                                                                                          1
                                                                                                                                                                                          2
                                                                                                                                                                                          3




                                                                                                                                                                                                                       1
                                                                                                                                                                                                                       2
                                                                                                                                                                                                                       3




                                                                                                                                                                                                                                                1
                                                                                                                                                                                                                                                2
                                                                                                                                                                                                                                                3
                                                                                                                                                                                                                                                                                                                                                                                              VCC1.8   4
                                                                                                                                                                                                                                                                                                                                                                   4.7uF/16V
                                                                                                                                                                                                                                                                                                                                                   D701

                                                                    BL_ADJ(DC)          R31      C51    R32       R29     R33       Q4




                                                                                                                                                                                                                                                                                                                                        C
                                                                    0V ~ 3.3V           4.7K     1UF    0         X       X         X                                                                                                                                                                                                            1N4148
                                                                    0V ~ 5V             4.7K     1UF    X         1K      4.7K    MMBT3904                                                                                                                                                                                      B                                  R703
                                                                                                                                                                                                                                                                                                                                            Q702
                                                                    BL_ADJ        R31     C32                                                                                                                                                                                                                                                                      2K 1/16W
                                                                    P W M         47      N.C                                                                                                                                                                                                                              D702             CHT2907




                                                                                                                                                                                                                                                                                                                                        E
                                                                    D C           4K7     1uF
                                                                                                                                                                                                                                                                                                                          1N4148
                                                                                                                                                                                                                                                                                                   C705
                                                                                                                                        +5V                                                                                                                                                               +
                                                                                                                                                                                                                                                                                                 1uF/16V                  R704
                                                 +12V
                                                                                                                                  R708                                                                                                                                                                                    100 1/16W                                        VCC3.3
                                                                                                                                                                                    +5V
                                                              +12V     4 CN701
                                                                                                                                      10K 1/16W
                              C706       C707
                                                            GND                                                                                                                                                                                                                                                                                                                               VCC3.3   4
                                         +                           1                   2       BL_ON                                                R710           NC                   R711
                              0.1uF                         GND      3                   4        BL_ADJ
                                         100uF/25V         +12V      5                   6         +12V                                                                                   10K 1/16W                                                                                        +5V       PC5V                       Recommond to used "Blue" parts circuit
                                               +5V          GND      7                   8        GND                     C711
                                                            +5V      9                   10       +5V                                                 R712           4.7K 1/16W                                                                                                                                                 for VCC1.8V if you want to suppoert DDC
                  3,4   +5V                                                                                                                                                                            on_BACKLIGHT 4                                               3,4   +5V                                            PC5V    3
                                                            GND     11                   12      GND                      0.1uF                                                                                                                                                                                                 function when system power off
                                                                                                                                              Q703
                                                                                                                                              PMBS3904
                                                                                                                                                                                                                                                                                       R732                   R709
                                                    C710                  CONN
                                         C709       +                                                                                                                                                                                                                            +5V    10 1/16W              0 1/16W

                                         0.1uF      100uF/25V                     VCC5V
                                                                                                                                                                                                                                                    3,4       +5V




                                                                                                                                                                                                                                                                                           2



                                                                                                                                                                                                                                                                                                     1
                                                                                                                                                                            D704(SSM12L) Vf=0.38V and If=1A.
                                                                                             R701                                                                                                                                                                          D704
                                                                                                                                                                            So when system power on, the                                                                                                       D703
                                                                                               1K 1/16W
                                                                                                                                                                            system loading is about 400mA                                                             SMAL140                                  BAT54C      TO-263
                                                           R706 NC                               R705 4.7K 1/16W                                                            (3.3V is about 200mA and 1.8V is                                                                                                             U702                                                             VCC3.3
                                                                                                                                                                            about 200mA), So D35 changed




                                                                                                                                                                                                                                                                                                 3
                                                                                                                                                                                                                                                                                                                     3                       2
                                                                                                                                                                                                                                                                                                                         VIN        VOUT                                                                   VCC3.3    4
                                                                                                                                                                            from 1N4148(or BAT42) to                                                                                                                                         4
    4                                                                                    Q701                           C708                                                                                                                                                                                         1              VOUT
                   Adj_BACKLIGHT                                                                                                                                            SSM12L(schottky diode).                                                                                                                      ADJ
                                                           R707                           PMBS3904                      1uF                                                                                                                                                                                                                                R713        C712
                                                           4.7K 1/16W                                                                                                                                                                                                                              C713                  AIC1084-33PM                                  +          C714
                                                                                                                                                                          P.S: The 1N4148 Vf=0.7V~1V can't meet                                                                                                                                           NC
                                                                                                                                                                                                                                                                                                   0.1uF                                                               100uF/25V 0.1uF
                                                                                                                                                                          LDO spec. The BAT42, Vf is OK but the
                                                                                                                                                                          If=200mA(forward current) can not
                                                                                                                                                                                                                                                                                                                                            R720      0 1/16W
                                                                                                                                                                          meet current spec.
                                                                                                                                                                                                                                                                                                                                                 12/21 MODIFY
                                      +3V3                                                   +3V3
                                                                                                                                                                 For RSDS and Panel VCC=12V
                                                                    +5V
                                                                                                            VLCD
                                                                                                                                                                                          +5V              +5V          +12V                VLCD_12V
                                                                                                                                 VLCD 5
                                                                                                                                   +5V               +3V3                                                                                                                            +5V             +12V
                                                                                                                                                                                                                                                                   VLCD_12V      5
                                                                R714                             R715
                                R716           R717                                                                                                                                             R718             R729       R719
                                                      10K 1/16W                                  NC                                                                                                                                                                                           R730
                                               10K 1/16W                                                                                      R721          R722                                NC/10K           NC/10K     NC/10K                                                                            R731
                              NC                                                                                  Q704
                                                                             R723 51K 1/16W                       AO3401L                 0 1/16W           NC                                                                                      Q705                                   0 1/16W            NC
                                                                                                                                                                                                                            R724 51K                AO3401L
                                                 R725
                                                                           Q706                                                                                                                 R726 NC/4K7                          C716
              4   on_Panel
                                               4.7K 1/16W                                           C715                                                                                                                    Q707
                                                                             PMBS3904                                                                            4   on_Panel_12V
                                                                                                                                                                                                                                   0.1uF
                                                      C718                                          0.1uF     +    C717                   R727                                                                              PMBS3904
                                                                                                                                                                                                            C720                                +     C719                R728
                                                      0.1uF                                                       10uF/16V                10K 1/16W                                                                                                                                                                             Title
                                                                                                                                                                                                     NC/0.1uF                                   NC/10uF/16V               NC/4K7
                                                                                                                                                                                                                                                                                                                                                                   TSUM16AK
                                                                                                                                                                                                                                                                                                                                Size        Document Number                                                    Rev
                                                                                                                                                                                                                                                                                                                                  B                                POWER                                        A
                                                                                                                                                                                                                                                                                                                                Date:         Monday , May 09, 2005             Sheet     1      of        5




                                                                                                                                                                                                 17
15" LCD Color Monitor                                                                                                                                                                                                                                                                                                                                      AOC 152V
                             CN405




                      17
                              DB15                                                            FB410                  0 1/16W
               11            1     RED+                                                                                                                               R434          56 1/16W                   C432 0.047uF
                                   RED-                                                                                                                                                                                                       RIN    4
                             6
               12            2     GREEN+                                                     FB411                  0 1/16W                                          R435          56 1/16W                   C433 0.047uF
                                   GREEN-                                                                                                                                                                                                     GIN    4
                             7
               13            3     BLUE+                                                      FB412                  0 1/16W                                          R436          56 1/16W                   C434 0.047uF
                                   BLUE-                                                                                                                                                                                                      BIN    4
                             8
               14            4            PC5V                                                                                                                        R437          470 1/16W                  C435 0.047uF




                                                                                                                                     75 1/16W




                                                                                                                                                      75 1/16W
                                                                                                                                                                                                                                              SOG     4




                                                                                                                                                         R440
                             9        PC5V                                                                         R438




                                                                                                                                       R439
               15            5   VGA_CON
                             10                                                                               75 1/16W

                                                                                                                                                                      R441          100 1/16W                  C436 0.047uF
                                                                                                                                                                                                                                              GNDR        4
                      16

                                                                                                                                                                      R442          100 1/16W                  C437 0.047uF
                                                                                                                                                                                                                                              GNDG        4
                                                                                                                                                                      R443          100 1/16W                  C438 0.047uF
                                                                                                                                                                                                                                              GNDB        4




                                                          3




                                                                           3




                                                                                             3
                                                               D403            D404               D405                                                                +5V
                                                               BAV99           BAV99              BAV99
                                     D406
                                                                                                                                                                                        +5V    2,4
                                                                                                            ESD_5V
                            MLL5232B 5.6V                                                                                                                                   R444
                                                      C439 0.1uF       C440 0.1uF      C441 0.1uF
                                                                                                                                                                            10K 1/16W
                                                      2



                                                               1


                                                                       2



                                                                               1


                                                                                       2



                                                                                                  1
                                                                                                                                                                              R445       100 1/16W                                                                           +5V          PC5V
                                                                                                                                                                                                                                              DET_VGA             4




                                                                                                                                                                                                                                                                              2



                                                                                                                                                                                                                                                                                          1
                HSI                               FB409                  120 OHM                                   R446        1K 1/16W
                                                                                                                                                                                                                                              HSY NC          4

                VSI                                                                                                                         R447         1K 1/16W                                                                                                                                  D407
                                                                                                                                                                                                                                              VSY NC          4
                                                                                                                                                                                                                                                                                               BAV70

                D408                      D409                                         R448               C442       R449                C443                               D410




                                                                                                                                                                                                                                                                                      3
                MLL5232B 5.6V             MLL5232B 5.6V                                                                                                                     MLL5232B 5.6V
                                                                                       2.2K 1/16W         33pF       2.2K 1/16W          220pF                                                                                                            R450          R451 R452
                                                                                                                                                                                                                                                                      10K 1/16W                    U404                        C444
                                                                                                                                                                                                                                               10K 1/16W                10K 1/16W              8                       1
                                                                                                                                                                                                                                                                                               7       VCC       A0    2       0.1uF
                                                                                                                                                                                                               SCL_VGA                 R453    100 1/16W                                       6       WP        A1    3
                                                                                                                                                                                                               SDA_VGA                 R454    100 1/16W                                       5       SCL       A2    4
                                                                                                                                                                                                                                                                                                       SDA      GND
                                                       VCC5V
       CN406                                                                                                                                                                                                                                                                                       M24C02
                                                                                                                                                 D411                  D412
                                                                                                                                                                                                                           4    DDCA_SDA
                       25                                  R471                                                                                  MLL5232B 5.6V         MLL5232B 5.6V
                R                                                                                                                                                                                                          4    DDCA_SCL                                                                                          DDC_WP      4
                       26
                G      27                                  10K 1/16W                                                                                                                                                                                                           +5V         DVI5V
                B      29
        RGB GND




                                                                                                                                                                                                                                                                                   2



                                                                                                                                                                                                                                                                                           1
                       28
           HSY NC      8
           VSY NC      15                                      R458        100 1/16W
       SY NC GND                                                                                 DET_DVI    4
                       6          SCL_DVI                                                                   R455       100 1/16W                    DVI5V                                                                                                                                              D413
         DDC SCL       7          SDA_DVI                                                                   R456       100 1/16W                                 R457 10K 1/16W
        DDC SDA        14         DVI5V                                                                                                                                                                                                                                                            BAV70
              +5V      16         HPD
             HPD




                                                                                                                                                                                                                                                                                       3
                       11
         1/3shield     3                          R472     D426                    D414                   D415                 D416                      C445                                                                                                 R459       R460 R461
         2/4shield     19                                  LL5232B 5.6V 5%         LL5232B 5.6V 5%        LL5232B 5.6V 5%      LL5232B 5.6V 5%                                                                                                                           10K 1/16W                     U405                     C446
         0/5shield     22                         NC                                                                                                     0.1uF                                                                                      10K 1/16W            10K 1/16W                 8                       1
         clk shield                                                                                                                                                                                                                                                                                7    VCC       A0       2     0.1uF
                       18         DAT0+                                                                                                                  R462         10    1/16W                                                                                                                  6    WP        A1       3
           DAT0+                  DAT0-                                                                                                                                                              B+   4                                                                                             SCL       A2
                       17                                                                                                                                R463         10    1/16W                                                                                                                  5                       4
           DAT0-                  DAT1+                                                                                                                                                              B-   4                                                                                             SDA      GND
                       10                                                                                                                                R464         10    1/16W
           DAT1+                  DAT1-                                                                                                                                                              G+    4
                       9                                                                                                                                 R465         10    1/16W
           DAT1-                  DAT2+                                                                                                                                                              G-   4
                       2                                                                                                                                 R466         10    1/16W                                                                                                                      M24C02
           DAT2+                  DAT2-                                                                                                                                                              R+    4               4    DDCD_SDA
                       1                                                                                                                                 R467         10    1/16W
           DAT2-                                                                                                                                                                                     R-   4                4    DDCD_SCL
                       13
           DAT3+       12
           DAT3-                                                                                                                                                                                                                                                                                                                      DDC_WP      4
                       5
           DAT4+       4
           DAT4-       21                                                                                                                                                                                         +5V
           DAT5+       20                                                                                                                                                                                                                                                                 R473
           DAT5-       23         DCLK+                                                                                                                  R468         10 1/16W
             clk+                 DCLK-                                                                                                                                                              CLK+ 4
                       24                                                                                                                                R469         10 1/16W                                                                                                            NC
             clk-                                                                                                                                                                                    CLK- 4
                             



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