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HAIER TV-8888-34


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   HAIER

COLOR TELEVISION




SERVICE MANUAL


PART # TV-8888-34




   HAIER AMERICA TRADING, LLC
      www.haieramerica.com




                                1
                                           Service Manual   Haier




                Service Manual
                      For P42S6A-C1 / P42S6A-C2




       Features
 Built in tuner

 Digital interface(DVI 1.0)

 Auto Pixel shift for reduce image sticking

 Graphic and video double window

 8W-2CH speaker out ,subwoofer out

 PC/DVI input resolution up to 1280*1024

 HDTV signal interface

 Power management function



                   Haier group
                                          Edition:2003.11.11
                             1/57
                                                               Service Manual          Haier


                                          Content

Contents.....................................................................................2

2.Features..................................................................................3

3.Safety measures and Attention.................................................4

4.Block Diagram ..........................................................................5

5.IC description ............................................................................7

6.IC layout &power map...............................................................10

    6.1 IC layout & power map(digital board) ................................10

    6.2 IC layout & power map(analog board) ...............................11

7.Panel       interface ......................................................................12

    7.1 Output signal timing_60HZ................................................12

    7.2 Output signal timing_50HZ.........................................12

    7.3 Output signal timing diagram......................................13

    7.4 LVDS bit mapping.....................................................14

    7.5 Panel connect pin configuration...................................14

8.Power interface...............................................................15

9.Inspections on major Ics...................................................16

10.Bom list.......................................................................22

11.repair record.................................................................53

    11.1Record sheet:for reference........................................53




                                              2/57
                                          Service Manual   Haier


2.Features

 Built in tuner

 Digital interface(DVI 1.0)

 Auto Pixel shift for reduce image sticking

 Graphic and video double window

 8W-2CH speaker out ,subwoofer out

 PC/DVI input resolution up to 1280*1024

 HDTV signal interface

 Power management function

 Motion adaptive 3D Y/C Separation for composite NTSC video

    signal

 4H adaptive comb filter for PAL composite video signal

 Multi-stand color decoder PAL/NTSC/SECAM

 Multi-stand video sync processing

 Multi-stand sound process with Turbo sound

 Video window on graphic background

 Graphic window on video background

 Independent scale factors in vertical and horizontal

 Graphic signal full sync processing

 Motion-weighted interpolation for video source

 Bad-edit detection/correction




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                                   Service Manual   Haier


3. Safety measures and Attention




                           4/57
                                                                                                                                                          Service Manual           Haier




    4. BLOCK DIAGRAM                                                                                                                 74HC                                                                          VPC_S_RST_N_51                      01_CPU_RXD0
                                                                                                                                                                                                                                           CPU
    DVI_SCL                      24C21                                        74HC                        PC/DVI_L/R                 4052                                                                                                              02_CPU_TXD0
    DVI_SDA                                  PC_AUDIO_SEL_N                   4052      CPU_VSYNC                                                     MSPG           TL062           TA2024                             RM1_IRQ_53                     03_HDTV_SEL
                                                                                                          S-Video_L/R                                 3450G           CDT                                              POWER_N_54                      04_CPU_BHE_N
      DVI_V                                                                                                                                            0x80                                                              IR_INT1_55                    05_CPU_WR_N
      DVI_H                                                                             CPU_HSYNC            DTV_L/R                                                                                                     IR_INT0_56                    06_CPU_RD_N
                                                                                                                                                                                                                     CPU_UCS_N_57                      07_ALE
  DVI_RX2 +                                                                                 AD9887           DVD_L/R                                                                                                 CPU_LCS_N_58                      08_ARDY(3.3V)
  DVI_RX2 -                                                                                                                                                                                                         V_SUB_EN_N_59                      09_S2
                                                                                             0x98            Video_L/R                                                                                             V_MAIN_EN_N_60                      10_S1
  DVI_RX1 +                                                                                                                                                                                                           PIN_DET_N_62                     11_S0
  DVI_RX1 -                                                                                                  Tuner_SIF                                                                                                                                 13_X1
                                                                                                                                                                                                                    PD_LVDS_N_65                       14_X2
  DVI_RX0 +                                                                                                                                                                                                          KEY_EN_N_65                       16_RM1_CLK_IN
  DVI_RX0 -                                                                                                                                                                                           RM-1A           SCL_TMR_68                       17_25MHz_AD9887
                                                                                                      D_IN[0:7]                                                                                                       SDA_TMR_69                       19~40_A[19:0]
                                                                                                     D_IN[8:15]                                                                                                    CPU_RST_N_71                        42_WHB
                                                                                                     D_IN[16:23]                                                                                                        V_OE_N_72                      43_WLB
                                                                                                                                                                                                      G_Port
      PC_V                                                                                                                                                                                                             SCL_STB_73                      44_HLDA
      PC_H                                                                                                                                                                                                     PC_AUDIO_SEL_N_74                       45_HOLD(GND)
                                                                                                     D_ACTIVE
                                                                                                                                                                                                                      SDA_STB_75                       46_HW_MONITOR
                                                                                                     DIN_CLK
      PC_R                                                          ADG774                           D_HSYNC                                                                                                              SCL1_76                      47_NMI(GND)
                                                                                                     D_VSYNC                                                                                                              SDA1_77                      48_WRITE_PROTECT
                                                      DTV_Y                                                                                                                                                      CPU_D[0:15]_78~95                     49_RM1_RST_N
      PC_G                                                                    R/Y_IN                                                                                                                                  G_LED_N_96                       50_RM1_CS_N
                                                                                                                                                              VIDEO_DET        74HC244                                 R_LED_N_97
                                                          DTV_Pb             G/Pb_IN                                                                          SVHS_DET                                               CPU_TXD1_98                      PCF           P0_COMP1_DVD_SEL
      PC_B                                                                                                                                                     DVD_DET                   CPU_D[0:7]                  CPU_RXD1_99                                    P1_MUTE
                                                                             B/Pr_IN                      PIN_DET_N                                            DTV_DET                                              FLI_RST_N_100                    8574T          P2
                                                           DTV_Pr                                                                                               PC_DET                                                                                              P3
    PC_SCL                       24C21                                       R/G(SOG)_IN                                                                       DVI_DET                                                                                              P4
    PC_SDA                                                                                                      74HC02                                        THER_DET                                                                    SCL1                      P5
                                                                                                                                                                                                                                          SDA1                      P6
                                                                                                                                                                                                                                                                    P7
                                                                                    KEY_EN_N                    74HC02
    DTV_Y                                  BA7657            HDTV_SEL               CPU_RD_N                                                                    ENTER          74HC244
                                                                                                                                                               SOURCE                                                         TX1          MAX          CPU_TXD0
                                           (option)                                                                                                             MENU                                                          RX1          232A         CPU_RXD0
   DTV_Pb                                                                                                                                                        VOL -                                                        TX2                       CPU_RXD1
                                                                                                                       74ACT244   74ACT244     74ACT244         VOL +                                                         RX2                       CPU_RXD1
                                                                                                                                                                 CH -
   DTV_Pr                                                                                                                                                        CH +                                                    PHONE_TX
                                                                                                                                                               POWER                                                     PHONE_RX
                                                                                                         V_OE_N

                                                                                                                                                                                                                                      TxOUT0 -
                                                                                                                                                                                                                              DS90C   TxOUT0 +                10P         A6V
    DVD_Y                                  BA7657     VPC_M_RST_N                                                                                                   74ACT244                          V_Port                                       FI_WE                  GND
                                                                        VPC3230                                 V_IN[0:7]                                                                                      OP_A[0:23]      385                           Analog       A12V
                                           (option)           DVD_Y                                  FLI2200                                                                                                                          TxOUT1 -     31P_HF                 GND
                                                                             MAIN                                                                                                                                                                            PWR
   DVD_Pb                                                                                                                                                                                                                             TxOUT1 +                           12Vam
                                                                                     VPC_Y[0:7]       0xC0                                                          74ACT244
                                                             DVD_Pb                                                                                                                                                                                                      12Vam
                                                                             0x88    VPC_C[0:7]
                                                                                                                                                                                                               OP_HSYNC                                                   GND
   DVD_Pr                                                    DVD_Pr                                                                                                                                                                   TxOUT2 -                            GND
                                                                                     VPC_VS                       V_VS
                                                                                                                                                                                                               OP_VSYNC               TxOUT2 +                            A33V
                                                                                     VPC_HS                       V_HS                                              74ACT244
            COMP1_DVD_SEL                                                                                                                                                                                                                                                 GND
                                                                                     VPC_LLC1                     VCLK
                                                                                                                                                                                                               OP_ENABLE
                                                                                     VPC_FLD                    V_ACTIVE
                                                                                                                                                                                                                                      TxOUT3 -
                                                                                                                 V_VALID
                                                                                        74LCX74                                                                                                                CLK_OUT                TxOUT3 +                11P         A5V
                                                                                                                                                                                                                                                                          GND
                                                                                          DFF_FLD                                                                                                                                                            Digital     D3.3V
 S-Video_Y                                 TEA6425                                                             FLI_RST_N                                            74ACT244                                   PD_LVDS_N              TxCLKOUT-                          D3.3V
                                                                                                                                                                                                                                                             PWR
 S-Video_C                                                              VPC3230 SUB_Y[0:7]                                                                                                                                             TxCLKOUT+                          GND
                                            0x96                                                                                                                                                                                                                          GND
                          3D_Y                                               SUB                                                                                                                                                                                           NC
                          3D_C                        C                                                                                                             74ACT244                                                                                             POWER_N
                                                                             0x8E    SUB_C[0:7]
                                                                                                                                                                                                                                                                         GND_STB
Video_CVBS                                                                                                                                                                                                      SCL_TMR        PCF SCL_STB         24C16                  STB_5V
                                                                         (option)      SUB_VS
                                                      Y                                                                                                                                                         SDA_TMR       8573T SDA_STB                              THER_DET
                                                                                       SUB_HS
     AIR          Tuner                                                                SUB_LLC2
                           Tuner_CVBS                        CVBS
                  0xC2                                                                 SUB_FLD
                           3D_Y              UPD                                                                                                                     V_MAIN_EN_N         V_SUB_EN_N
                AFT        3D_C             64083
                                            0xB8      CVBS
                   PCF              SCL1                                             VPC_S_RST_N                                        5/57
                  8591T             SDA1
                                                                              Service Manual   Haier


5. IC DESCRIPTION

           Name        Package                                   Description                             Manufacture
     KIA78D05F        DPAK        Regulator                                                            KEC
     KIA78D09F        DPAK        Regulator                                                            KEC
     LP3961EMP-2.5    SOT 223-5   Regulator                                                            NATIONAL
     LM1086ISX_3.3V   TO-263      Regulator                                                            NATIONAL
     LP3961EMP-1.8    SOT 223-5   Regulator                                                            NATIONAL
                                                             MICOM
                                  1) Multiplexed address and data bus which is
                                    compatible with 80c186 microprocessor
     R8820LV          PQFP 80                                                                               RDC
                                  2) Supports nonmultiplexed address bus[A19 : A0]
                                  3) 1M byte memory address space
                                  4) 64K byte I/O Spaec
     M29W160DB        TSOP        FLASH MEMORY                                                         ST
     M24C16           SOP 8       EEPROM                                                               ST
     74VHC08          SOP 8       2 input AND Gate                                                     FAIRCHILD
                                                   RGB Graphics Processing
                                                      Scan Converters
                                                      Aanlog Interface
                                  1) 140 MSPS Maximum Conversion Rate
                                  2) 330 MHz Analog Bandwidth
                                  3) Full sync processing
     AD9887KST        MQFP                                                                             ANALOG DEVICES
                                  4) Midscale Clamping
                                  5) 4:2:2 Output Format Mode
                                                      Digital Interface
                                  1) 112MHz Operation(2pixels/clock mode)
                                  2) High skew tolerance of 1 full input clock
                                  3) Sync Detect for "hot plugging"


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                                                                  Service Manual       Haier




      Name    Package                                    Description                            Manufacture
                                                LVDS Transmitter                               NATIONAL
                        +3.3V Programmable LVDS Transmitter 24-BIT Flat Panel
DS90C385     TSSOP
                        Display Link-85 MHz , +3.3V Programmable LVDS Transmitter
                        18-Bit Flat Display Link-85 Mhz
MAX821       SOT143     Power-on Reset                                                         MAXIM
74AHC244     SOP        Octal Buffer and Line Driver                                           PHILIPS
74VHC02      SOP        Quad 2-Line NOR Gate                                                   FAIRCHILD
74LCX74      TSSOP      D-Type Flip-Flop                                                       ST
                                     Comb Filter Video Processor                               MICRONAS
                        1) High-performance adaptive 4H comb filter Y/C separator
                           With adjustable vertical peaking
                        2) Multi-standard color decoder PAL/NT/SECAM
VPC3230D     QFP        3) Line-locked clock, data and sync, or 656-output interface
                        4) peaking,contrast, brightness,color saturation and
                           tint for RGB/YCrCb and CVBS/S-VHS
                        5) PIP processing for picture sizes whit 8 bit resolution
                        6) 15 predefined PIP display configuration and expert mode
                                      Digital component video deinterl                         FAROUDJA
                        1) Motion-adaptive video deinterlacing selects optimal
                           filtering on a per-pixel basis
                        2) Supports 525/60(NTSC), 625/50(PAL/SECAM)
FLI2200      TQFP       3) Accepts up to 1100 pixels/line
                        4) 8/10-bit , 16/20-bit YUV,24/30-bit RGB or YCbCr/YPbPr
                          Progressive output option
                        5) High-order filtering produces smooth chroma output in
                           4:2:2 to 4:4:4 or 4:4:4 to 4:2:2 conversion




                                                  8/57
                                                                   Service Manual         Haier




     Name        Package                                   Description                                    Manufacture
MAX232ACSE      SOP        RS232 Transceivers                                                        MAXIM
TCPS9091PD27A   tuner      Tuner                                                                     SEC
24C21           SOIC       EEPROM                                                                    ST
74HC4052        SOP        4-Channel Analog DE/Multiplexer                                           PHILIPS
BA7657F         SOP        Switch ic                                                                 ROHM
74ACT244        TSSOP      Octal Buffer and Line Driver                                              FAIRCHILD
PCF8563T        SOP        CMOS Real-time Clock                                                      PHILIPS
K4S643232f      TSOP       DRAM                                                                      Samsung Elec.
K6T4016V3C      TSOP       SRAM                                                                      Samsung Elec.
TEA6425D        SO20L      Video Cellular Matrix                                                     ST
KIA78D09F       DPAK       Regulator                                                                 KEC
RM1A-A          BGA-352    scaler                                                                    OPLUS
PCF8574T        SOT162     Remote 8-bit I/O Expander                                                 PHILIPS
TA2024          PSOP30     Digital Audio Amplifier Driver                                            TRIPATH
TL062CDT        SO8        J-FET Dual Operational Amplifiers                                         ST
MSP3450G        PQFP80     Multistandard sound processor family                                      MICRONAS
                              Three-dimensional Y/C separation lsi with on-chip memory               NEC
                           1) upd64083 realizes a high precision Y/C separation
                           2) noise reduction by three-dimension signal processing for NTSC signal
                           3) on-chip 4-Mbit memory for flame delay,2ch of high precision intermal
UPD64083GF      QFP100
                              10-bit A/D converter, and adapting 10-bit signal processing and high
                              picture quality
                           4) upd64083 is completely single-chip system of 3D Y/C separation
                           5) This LSI includes the wide




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                                                                                                                          Service Manual                  Haier


6. IC layout &power map                           6.1 IC layout & power map(digital board)
                                                                                                  31P CON.                                    11P CON.

             74VHC       74VHC                                                      D3.3V
               02          02                                                                                                      STB5V        D3.3V A6V
                  STB3.3V                    K4S                K4S               K4S            DS90C385                           LP               78D   LM
                                                                                                                                                                     Z86129
                                           643232F            643232F           643232F                                      D2.5V 9361              05F   2937
       14     74AHC        74AHC                                                                                                    2.5                     3,3                        12
       P        244          244                                                                   D2.5V                   LM                          A5V                     A5V     P
       C                                                                                                                   1086    STB5V                                               C
       O                                                                                                                  IS-3.3                                                       O
       N.                                                                                                                                                                              N.
                                       STB3.3V                                                              STB3.3V                              D3.3V
                       K6T4016V3C                                                                LP                           74ACT           74ACT
            MAX                                            RAMBRANT-1A                          9361                            244            244
            821                                                             D1.8V                1.8           74ACT                                                 VPC               12
                             STB3.3V                                                                            244           74ACT           74ACT                                    P
        STB5V                                                               D3.3V           D3.3V                   D3.3V       244            244                   3230              C
                                                                                                                                                                                       O
                                                                                                                                                                                       N.
                                                                                                       74ACT
                      R8820LV             STB5V                                                          244
                                                     STB5V                                                                       FLI2200
                                                     A5V                                               74ACT              D2.5V                                                        12
                                            A5V                                                          244                                                                           P
                        24C16                                                       D3.3V                                                                              LM              C
                                                                                                                                                                       1086            O
                                                                                                                          D3.3V                       74LCX7                           N.
                                                                                        74ACT          74VHC                                             4            IS-3.3
                       M29W160DB                                                         244             08

                                                                                                                                 K4S643232F                        D3.3V               12
                                                       AD9887KS                                 ADG774                                                                                 P
                                                                                                                                                                                       C
                                                       -140                                                                                                                            O
                         PCF                                                                                                                                         VPC               N.
                        8563T
                                                                                                                          74HC                                       3230
                                                      A3.3V             A3.3V                          STB5V              4052

                                                                                                                                        74HC
                                          LM         4FC        24C16            LM                                 4FC                 4052
              MAX                         2937       216                         2937                               216
              2323E                        3,3                                    3,3                       A5V                                                A5V
                                                      STB5V
                            STB5V                                                                                                                           S-
                                                     A5V                                                                                                   Video
                                                                                                               PC
                                 RS232I
              RS232 OUT            N                  DVI                Audio_PC/DVI_LR                                           Audio_SVideo_LR                    Audio_Video_LR




                                                                                                10/57
                                                                                                                 Service Manual          Haier


6.2 IC layout & power map(analog board)

                 10P CON.

         A33V

              12Vamp                                                                 LM
                                 78D               78D   A9V                        2940
                             A6V 05F               09F                              IMP8
 12                                                                                  3,3                                               A9V
 P                                                              LP
 C                A12V               A5V                       2961 A5V                                                 A5V
 O
                                                         A2.5V 2.5V
 N.                                                                                              MSP
                                                                       LM
                                            UPD                  A3.3V 2937
                                                                                                3450G
 12                                                                    3.3V                                                                       A33V
 P                                         64083                        3,3
 C                                                                            A5V
 O                                                                                                                                 TCPS9091PD27A
 N.
                                                                          LP           12Vamp   TL062
                                                                   A2.5V 2961                    CDT
 12                                                                      2.5V
 P
 C
 O
 N.
                              TEA                               PCF        PCF
           LM     A8V        6425D                             8574T      8591T        12Vamp           TA2024
          2940
 12       IMP8
 P         3,3
 C
 O
 N.                             BA7657F                    BA7657F



                                                                                A5V
                       A5V




                                                                                                                                                 RF

      VIDEO                  DTV                    Audio_DTV_LR                      DVD                Audio_DVD_LR         Audio_OUT_LR               Woofer




                                                                                            11/57
                                                                 Service Manual   Haier

7.Panel interface

   7.1 Output signal timing_60HZ
              SIGNAL               TIMING                         SIGNAL                  TIMING
  Dot Clock                        27 M HZ
  H-Frequency                      31.05HZ            V-Frequency                         59.99 HZ
  H-Total                          896 dots           V-Total                              533 H
  H-Front Porch                    16 dots            V-Front Porch                        12 H
  H-Sync                           12 dots            V-Sync                                2H
  H-Back Porch                     16 dots            V-Back Porch                         29 H
  H-Active                         852 dots           V-Active                             480 H
  H-Sync Polarity                     P               V-Sync Polarity                        P

   7.2 Output signal timing_50HZ
              SIGNAL               TIMING                         SIGNAL                  TIMING
  Dot Clock                        27 M HZ
  H-Frequency                      31.05HZ            V-Frequency                          50 HZ
  H-Total                          896 dots           V-Total                              639 H
  H-Front Porch                    10 dots            V-Front Porch                        12 H
  H-Sync                           24 dots            V-Sync                                2H
  H-Back Porch                     10 dots            V-Back Porch                         135 H
  H-Active                         852 dots           V-Active                             480 H
  H-Sync Polarity                     P               V-Sync Polarity                        P


                                              12/57
                                                    Service Manual    Haier


7.3 Output signal timing diagram
   HORIZONTAL TIMING DIAGRAM




       12 D   16D                  852D            16D




                               896D

   VERTICAL TIMING DIAGRAM




       2H     12H                  480H                   29H(135H)




                              533H(639H)



                                           13/57
                                                                   Service Manual    Haier


7.4 LVDS bit mapping
Pin Name       signal      Pin Name     signal           Pin Name          signal       Pin Name   signal
 TXIN0           R0          TXIN7       G0               TXIN14             G5          TXIN21      B4
 TXIN1           R1          TXIN8       G1               TXIN15             B0          TXIN22      B5
 TXIN2           R2          TXIN9       G2               TXIN16             B6          TXIN23    FIELD
 TXIN3           R3         TXIN10       G6               TXIN17             B7          TXIN24    HSYNC
 TXIN4           R4         TXIN11       G7               TXIN18             B1          TXIN25    VSYNC
 TXIN5           R7         TXIN12       G3               TXIN19             B2          TXIN26    ENABLE
 TXIN6           R5         TXIN13       G4               TXIN20             B3          TXIN27      R6

7.5 Panel connect pin configuration
 PIN NO.       signal       PIN NO.     signal            PIN NO.          signal        PIN NO.    signal
    1           GND            9         GND                17              GND              25     N.C.
    2           GND            10        GND                18              GND              26     GND
    3          Txout0-         11      Txout2-              19             Txout3-           27     N.C.
    4         Txout0+          12      Txout2+              20            Txout3+            28     GND
    5           Gnd            13        GND                21              GND              29     N.C.
    6           Gnd            14        GND                22              GND              30     GND
    7          Txout1-         15     TxCLKout0-            23              GND              31     N.C.
    8         Txout1+          16     TxCLKout0+            24              GND


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                                            Service Manual     Haier


8.Power interface

                      DIGITAL BOARD                            ANALOG BOARD
         PIN
       NUMBER
                    INPUT POWER(CN6001)                      INPUT POWER(CN1000)
          1                A5V                                          A6V

          2                GND                                          GND

          3                D3.3V                                        A12V

          4                D3.3V                                        GND

          5                GND                                         12VAMP

          6                GND                                         12VAMP

          7                 NC                                          GND

          8              POWER-N                                        GND

          9                GND                                          A33V

          10              STB5V                                         GND

          11             THER_DET




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                                                                 Service Manual   Haier


9.Inspections on major ICs
  9.1R8820LV(DIGITAL:U9102)-MICOM

     (1)Check whether the proper power is supplied(3.3v)

     (2)Check whether the No.71 Reset pin's output is high.

     (3)Check I2C-BUS (I2C :PINS 76 and 77)

     (4)Check whether the inputs/outputs betwenR8820LV and MEMORY(U9101,U9103) are normal.

     (5)Check whethet the 25MHZ clock is connected to pins 13 and 14.

  9.2VPC3230(digital:U9513)_Check when the input mode is set for TV,VIDEO,S-VIDEO,DVD

     (1) Check whether the proper power is supplied.(5v,3.3v)

     (2) Check whether the No.15 Reset pin's output is high.

     (3) Check the I2C-bus(pin 13 and 14).

     (4) Check whethet the output clock of llc1(pin 28) is 13.5M HZ.

     (5) Check the output on VPC_h sync(pin56),VPC_VYNC(PIN57),VPC_FIELD(PIN53).

     (6) Check whethet the 20.25Mhz clock is connected to pins 62 and 63.


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                                                               Service Manual   Haier


   (7) Check the digital data outputs.

9.3 TEA6425D(ANALOG:U1002)

   -VIDEO Switching IC_Check when the input mode is set for TV,VIDEO,S-VIDEO

   (1) Check whether the proper power is supplied.(8v)

   (2) Check the I2C bus (pin2 and pin4).

   (3) Check whether the inputs/outputs are normal.

9.4 MDIN-150(digital :U9507)

   -DEINTERLACE_Check when the input mode is for TV,VIDEO ,S-VIDEO,DVD.

   (1) Check whether the proper power is supplied(3.3v,2.5v)

   (2) Check whether the NO.209 Reset pin's output is high.

   (3) Check the I2C-bus (pins 62 and 64).

   (4) Check whether the 27Mhz clock is connected to pins 186 and 187.

   (5) Check whether the data inputs are normal.

      VPC-CLK(pin 195):13.5MHZ,VPC_HSYNC(pin 189):15.75Khz,


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                                                             Service Manual   Haier


     VPC_VSYNC(pin 188):60HZ,VPC_FIELD(pin 194)

  (6) Check whether the data outputs are normal.

     V_CLK(pin159):27MHZ,V_HYNC(pin          165):31.5Khz,V_VSYNC(pin         168):60HZ,V_ACTIVE   (pin

     164),D_V_VALID(pin163)

  (7) Check whether the inputs and outputs between MDIN-150 and MEMORY (U9501) are normal.

9.5 TCP9091PD27A(ANALOG:U1001)_Check when the input mode is set for TV

  (1) Check whether the proper power is supplied .(33V,5V)

  (2) Check the I2C bus (pin 2 and 4).

  (3) Check whether the inputs/outputs are normal.

9.6 AD9887AKS(digital:U9201)-A/D CONVERTER_Check when the input mode is DTV,PC,DVI.

  (1) Check whether the proper power is supplied(3.3V)

  (2) Check I2C bus (pins 91 and 92).

  (3) Check whether the inputs/outputs are normal.

  INPUT:


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                                                             Service Manual   Haier


        PC INPUT:pin119



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