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                          Order NO.ITD0804015BE




             
             TH-65/58/50PZ750U
             TH-58/50/42PZ700U
             TH-50/42PZ77U
             TH-50/42PX77U
             TH-50/42PX75U


                            - Ver 1.0-


Troubleshooting Guide




                   2008
Contents

 1 . 2 0 0 7 P D P L in e u p & F e a t u r e C o m p a r i s o n - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - P 3

 2 . P CB L o c a ti o n & F u nc t i o n - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - -- - - P 5

 3. P CB L i s t - - -- -- - -- -- - -- -- - - -- -- - -- - - - -- - - - - - - -- - - - - - - -- - - - - - - - - - - - -- - - - - - - -- - - - -- - - - - - - -- - - - - - - - - - -- - P1 1

 4 . B l oc k D ia gr a m - - - -- -- - -- -- - - -- -- - -- - - - -- - - - - - - -- - - - -- - - - - - - -- - - - - - - - - - - - -- - - - - - - -- - - - - - - -- - - - - - - - - P 1 3

 5 . T r o u bl e s h o ot i n g -- - -- - -- - -- - -- - - - -- - -- - -- - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - P 1 5

 6 . Ap p en d ix - - -- -- - - -- -- - -- -- - -- -- - - -- -- - -- -- - -- -- - - --- - - - - -- - - - - - - -- - - - -- - - - - - - -- - - - - - - -- - - - - - - -- - - - - - P 2 1
1. 2007 PDP Line up & Feature Comparison




                                           3
1. 2007 PDP Line up & Feature Comparison
                                                PZ 750 Series            PZ 700 Series       PZ 77 Series          PX77 Series            PX75 Series
                                       Model


  Description

             Size                                   65/58/50                58/50/42            50/42                  50/42                  50/42

             Pane l                                1080p HD                1080p HD            1080p HD                 HD                     HD

             Gradation                                4,096                  4,096              4,096                   3072                  3072
                                                 10,000:1(65")
             Contrast Ratio                                                  5,000:1           10,000:1               10,000:1              10,000:1
                                                5,000:1(58",50")
 Picture
             Digital Optimizer                           Y                     Y                  Y                      Y                      Y

             St u d io R ef Mo d e                       Y                     --                 --                     --                     --

             Advanced 3D Color Management                Y                     Y                  Y                      Y                      Y

             Motion Pattern Noise Reduction              Y                     Y                  Y                      Y                      Y

             Sub-Pi xe l Co ntroller                     Y                     Y                  Y                      Y                      Y

                                               A d va n ce d S ma r t   Ad va nce d Smart
             Speaker                           Sound Spea ker           Sound Spea ker      Bottom Speaker        Bottom Speaker        Bottom Speaker
  Sound                                               (Side)                  (Side)
             BBE VIVA                                   Y                      Y                  --                     --                     --

             HDMI                                        3                     2                  2                      2                      2
             EZ Syn c (HDMI Control 2)                  Y                      Y                  Y                      Y                      Y

Networking                                           Y
                                                                               Y                  Y                      Y                     Y
             SDHC Card Slot                    (AVCHD/MPEG2
                                                                            (JPEG*)            (JPEG*)                (JPEG*)               (JPEG*)
                                                  /JPEG*)
             PC Input                                   Y                      Y                  --                     --                     --


                                                                                                            * 4GB SDHC Card complies with HD-JPEG.      4
2. PCB Location & Function




                             5
2. PCB Location & Function                                                                 P Z7 5 0 S e ri e s
 TH-65PZ750                                                 TH-58PZ750                                             TH-50PZ750
           C1              C2                C3                       C1              C2            C3                       C1              C2            C3
                                                  SS2                                                    SS2
 SU                                                         SU                                                     SU
                      PB            P                                            PB            P                                        PB            P
                 JG                                                         JG                                                     JG
      SC              D                           SS             SC              D                       SS             SC              D                       SS

 SD                                                         SD                                                     SD
                      H        DG
                                                  SS3                            H     DG                SS3                            H     DG
        C6                C5                C4                    C6             C5                C4                    C6             C5                C4
                GS    GH        G       R    J    K     S                  GS    GH        G             K     S                  GS    GH        G             K    S
  Board                      Function                       Board                      Function                    Board                      Function
    P   Power Supply                                          P   Power Supply                                       P   Power Supply
   PB Fan control                                            PB Fan control                                         PB Fan control
        Speaker Out, Sound Processor,                             Speaker Out, Sound Processor,                          Speaker Out, Sound Processor,
    H                                                         H                                                      H
        AV terminal, AV Switch                                    AV terminal, AV Switch                                 AV terminal, AV Switch
        DC-DC Converter,                                     DG DC-DC Converter, Digital Signal Processor           DG DC-DC Converter, Digital Signal Processor
   DG
        Digital Signal Processo                              JG H264 Decoder                                        JG H264 Decoder
   JG H264 Decoder                                            G   Front terminal, Key SW                             G   Front terminal, Key SW
    G   Front terminal, Key SW                                K   Power LED, Remote Receiver                         K   Power LED, Remote Receiver
    K   Power LED, AI Sensor                                  S   Power SW                                           S   Power SW
    S   Power SW                                             GS SD Card Slot                                        G S SD Card Sl ot
   GS SD Card Slot                                           GH HDMI 3 in                                           GH HDMI 3 in
   GH HDMI 3 in                                                   Format Converter, Plasma AI,                           Format Converter, Plasma AI,
                                                              D                                                      D
    J   In t e r f a c e                                          Sub-Field Processor                                    Sub-Field Processor
        Format Converter, Plasma AI,                         C1 Data Driver (Upper Right)                           C1 Data Driver (Upper Right)
    D
        Sub-Field Processor                                  C2 Data Driver (Upper Center)                          C2 Data Driver (Upper Center)
   C1 Data Driver (Upper Right)                              C3 Data Driver (Upper Left)                            C3 Data Driver (Upper Left)
   C2 Data Driver (Upper Center)                             C4 Data Driver (Lower Left)                            C4 Data Driver (Lower Left)
   C3 Data Driver (Upper Left)                               C5 Data Driver (Lower Center)                          C5 Data Driver (Lower Center)
   C4 Data Driver (Lower Left)                               C6 Data Driver (Lower Right)                           C6 Data Driver (Lower Right)
   C5 Data Driver (Lower Center)                             SC Scan Drive                                          SC Scan Drive
   C6 Data Driver (Lower Right)                              SU Scan Out (Upper)                                    SU Scan Out (Upper)
   SC Scan Drive                                             SD Scan Out (Lower)                                    SD Scan Out (Lower)
   SU Scan Out (Upper)                                       SS Sustain Drive                                       SS Sustain Drive
   SD Scan Out (Lower)                                       SS2 Sustain Connector (Upper)
   SS Sustain Drive                                          SS3 Sustain Connector (Lower)
   SS2 Sustain Connector (Upper)
   SS3 Sustain Connector (Lower)
    R   Remote Receiver
                                                                                                                                                                     6
2. PCB Location & Function                                                              P Z7 0 0 S e ri e s
 TH-58PZ700                                                TH-50PZ700                                               TH-42PZ700
           C1             C2              C3                         C1            C2              C3                         C1                         C2
                                               SS2
 SU                     PB                                 SU                    PB                                 SU                PB
                                   P                                                        P                                                       P
                    D                                                        D
      SC                                          SS            SC                                         SS            SC                                         SS

 SD                       DH                               SD                      DH                               SD
                                               SS3                                                                                          D
                        H DG                                                     H DG
                                                                                                                                       H          DG
        C6               C5             C4                        C6              C5             C4                           C4                         C3
             GS          G                        K    S               GS         G                        K    S                                                        S
                                                                                                                              GS           G                        K
  Board                      Function                      Board                      Function                      Board                      Function
    P   Power Supply                                         P   Power Supply                                         P   Power Supply
   PB Fan control                                           PB Fan control                                           PB Fan control
        Speaker out, Sound Processor,                            Speaker out, Sound Processor,                            Speaker out, Sound Processor,
    H                                                        H                                                        H
        AV Terminal, AV Switch                                   AV Terminal, AV Switch                                   AV Terminal, AV Switch
        DC-DC Converter                                          DC-DC Converter,                                         DC-DC Converter,
   DG                                                       DG                                                       DG
        Digital Signal Processor, Microcomputer                  Digital Signal Processor, Microcomputer                  Digital Signal Processor, Microcomputer
   DH Full HD                                               DH Full HD                                                G   Front terminal, Key Switch
    G   Front terminal, Key Switch                           G   Front terminal, Key Switch                           K   Remote receiver, Power LED
    K   Remote receiver, Power LED                           K   Remote receiver, Power LED                           S   Power Switch
    S   Power Switch                                         S   Power Switch                                        GS SD Card Slot
   GS SD Card Slot                                          GS SD Card Slot                                               Format Converter, Plasma AI,
                                                                                                                      D
        Format Converter, Plasma AI,                             Format Converter, Plasma AI,                             Sub-Field Processor
    D                                                        D
        Sub-Field Processor                                      Sub-Field Processor                                 C1 Data Driver (Upper Right)
   C1 Data Driver (Upper Right)                             C1 Data Driver (Upper Right)                             C2 Data Driver (Upper Left)
   C2 Data Driver (Upper Center)                            C2 Data Driver (Upper Center)                            C3 Data Driver (Lower Left)
   C3 Data Driver (Upper Left)                              C3 Data Driver (Upper Left)                              C4 Data Driver (Lower Right)
   C4 Data Driver (Lower Left)                              C4 Data Driver (Lower Left)                              SC Scan Drive
   C5 Data Driver (Lower Center)                            C5 Data Driver (Lower Center)                            SU Scan out (Upper)
   C6 Data Driver (Lower Right)                             C6 Data Driver (Lower Right)                             SD Scan out (Lower)
   SC Scan Drive                                            SC Scan Drive                                            SS Sustain Drive
   SU Scan out (Upper)                                      SU Scan out (Upper)
   SD Scan out (Lower)                                      SD Scan out (Lower)
   SS Sustain Drive                                         SS Sustain Drive
   SS2 Sustain Connector (Upper)
   SS3 Sustain Connector (Lower)



                                                                                                                                                                             7
2. PCB Location & Function                                                           P Z7 7 S e rie s
 TH-50PZ77                                               TH-42PZ77
            C1               C2           C3                        C1                       C2

 SU                      PB                              SU
                                                                            PB
                                    P                                                    P
                     D
      SC                                        SS            SC                                       SS

      SD                                                      SD
                         H     DG                                                D
      G                                                       G
                                                                           H          DG
           C6             C5            C4                          C4                       C3
 GS                                                  S   GS
                                               K                                                      K     S

  Board                      Function                    Board                      Function
    P   Power Supply                                       P   Power Supply
   PB Fan control                                         PB Fan control
        Speaker out, Sound Processor,                          Speaker out, Sound Processor,
    H                                                      H
        AV Terminal, AV Switch                                 AV Terminal, AV Switch
        DC-DC Converter, Digital Signal Processor,             DC-DC Converter, Digital Signal Processor,
   DG                                                     DG
        Microcomputer                                          Microcomputer
    G   Front terminal, Key Switch                         G   Front terminal, Key Switch
    K   Remote receiver, Power LED                         K   Remote receiver, Power LED
    S   Power Switch                                       S   Power Switch
   GS SD Ca rd Slot                                       GS SD Card Slot
        Format Converter, Plasma AI,                           Format Converter, Plasma AI,
    D                                                      D
        Sub-Field Processor                                    Sub-Field Processor
   C1 Data Driver (Upper Right)                           C1 Data Driver (Upper Right)
   C2 Data Driver (Upper Center)                          C2 Data Driver (Upper Left)
   C3 Data Driver (Upper Left)                            C3 Data Driver (Lower Left)
   C4 Data Driver (Lower Left)                            C4 Data Driver (Lower Right)
   C5 Data Driver (Lower Center)                          SC Scan Drive
   C6 Data Driver (Lower Right)                           SU Scan out (Upper)
   SC Scan Drive                                          SD Scan out (Lower)
   SU Scan out (Upper)                                    SS Sustain Drive
   SD Scan out (Lower)
   SS Sustain Drive




                                                                                                                8
2. PCB Location & Function                                                              P X7 7 S e r ie s
 TH-50PX77                                                  TH-42PX77

                                                  SS2
  SU                                                        SU
                                     P                                                         P
       SC                                          SS             SC                                        SS
                 A                                                        A
       SD                                                        SD
                 D                                                        D
       G                                          SS3            G
            C1              C2             C3                            C1                        C2
  GS                                                    S   GS                                                   S
                                                  K                                                         K

  Board                      Function                       Board                      Function
    P   Power Supply                                          P   Power Supply
        DC-DC Converter,                                          DC-DC Converter,
        Speaker out, Sound Processor,                             Speaker out, Sound Processor,
    A                                                         A
        AV Terminal, AV Switch,                                   AV Terminal, AV Switch,
        Digital Signal Processor, Microcomputer                   Digital Signal Processor, Microcomputer
    K   Remote receiver, Power LED                            K   Remote receiver, Power LED
    S   Power Switch                                          S   Power Switch
   GS SD Card Slot                                                Format Converter, Plasma AI, Sub-Field
                                                              D
    G   Key Switch, Side Terminal                                 Processor
        Format Converter, Plasma AI, Sub-Field               C1 Data Driver (Lower Right)
    D
        Processor                                            C2 Data Driver (Lower Left)
   C1 Data Driver (Lower Right)                              SC Scan Drive
   C2 Data Driver (Lower Center)                             SU Scan out (Upper)
   C3 Data Driver (Lower Left)                               SD Scan out (Lower)
   SC Scan Drive                                             SS Sustain Drive
   SU Scan out (Upper)                                       GS S D Card S lot
   SD Scan out (Lower)                                        G   Key Switch, Side Terminal
   SS Sustain Drive
   SS2 Sustain out (Upper)
   SS3 Sustain out (Lower)




                                                                                                                     9
2. PCB Location & Function                                                         P X7 5 S e r ie s
 TH-50PX75                                             TH-42PX75

                                             SS2
  SU                                                   SU
                                    P                                                    P
       SC                                     SS            SC                                    SS
               A                                                    A
  SD                                                   SD
               D                                                    D
                                             SS3
         C1                 C2          C3                         C1                        C2
                         GS                  K     S                          GS                  K    S

  Board                      Function                  Board                      Function
    P   Power Supply                                     P   Power Supply
        DC-DC Converter,                                     DC-DC Converter,
        Speaker out,                                         Speaker out,
                                                         A
        Sound Processor,                                     Sound Processor,
    A
        AV Terminal, AV Switch,                              AV Terminal, AV Switch,
        Digital Signal Processor,                            Digital Signal Processor,
        Microcomputer                                        Microcomputer
    K   Remote receiver, Power LED                       K   Remote receiver, Power LED
    S   Power Switch                                     S   Power Switch
   GS SD Card Slot, Key Switch                               Format Converter, Plasma AI,
                                                         D
        Format Converter, Plasma AI,                         Sub-Field Processor
    D
        Sub-Field Processor                             C1 Data Driver (Lower Right)
   C1 Data Driver (Lower Right)                         C2 Data Driver (Lower Left)
   C2 Data Driver (Lower Center)                        SC Scan Drive
   C3 Data Driver (Lower Left)                          SU Scan out (Upper)
   SC Scan Drive                                        SD Scan out (Lower)
   SU Scan out (Upper)                                  SS Sustain Drive
   SD Scan out (Lower)                                  GS SD Card Slot, Key Switch
   SS Sustain Drive
   SS2 Sustain out (Upper)
   SS3 Sustain out (Lower)




                                                                                                           10
3. PCB List




              11
3. PCB List
Board     TH-65PZ750     TH-58PZ750     TH-50PZ750     TH-58PX700     TH-50PZ700     TH-42PZ700     TH-50PZ77     TH-42PZ77     TH-50PX77     TH-42PX77     TH-50PX75     TH-42PX75

 P      ETXMM631MGHS ETXMM625AGHS ETXMM624MGHS ETXMM625AGHS ETXMM624MGHS ETX2MM681MFS ETXMM673AGHS ETX2MM681MFS ETXMM655MEHS TXN/P1HNTUS                  ETXMM655MEHS TXN/P1HNTUS

 PB     TNPA4243ADS    TNPA4243ACS    TNPA4243ABS    TNPA4243ACS    TNPA4243ABS    TNPA4243AES    TNPA4243ABS   TNPA4243AES        ----          ----          ----          ----

 H      TNPA4346S      TNPA4346S      TNPA4346S      TNPA4131AGS    TNPA4131AGS    TNPA4346ABS    TNPA4360S     TNPA4360S          ----          ----          ----          ----

 A           ----           ----           ----           ----           ----           ----           ----          ----     TNPH0692AFS   TNPH0692AES   TNPH0692ACS   TNPH0692ABS

 DG     TNPA4347AFS    TNPA4347ABS    TNPA4347S      TNPA4129ABS    TNPA4129S      TNPA4347ACS    TNPA4415ABS   TNPA4415S          ----          ----          ----          ----

 DH          ----           ----           ----      TXNDH1HHTU     TXNDH1HHTU          ----           ----          ----          ----          ----          ----          ----

 JG     TXNJG1LFTU     TXNJG1LFTU     TXNJG1LFTU          ----           ----           ----           ----          ----          ----          ----          ----          ----

 G      TNPA4306ABS    TNPA4306ABS    TNPA4306ABS    TNPA4306ABS    TNPA4306ABS    TNPA4306ABS    TNPA4306S     TNPA4306S     TNPA4306S     TNPA4306S          ----          ----

 K      TNPA4418S      TNPA4236ABS    TNPA4236ABS    TNPA4236ABS    TNPA4236ABS    TNPA4236ABS    TNPA4307S     TNPA4307S     TNPA4307S     TNPA4307S     TNPA4236S     TNPA4236S

 S      TNPA4237S      TNPA4237S      TNPA4237S      TNPA4237S      TNPA4237S      TNPA4237S      TNPA4237S     TNPA4237S     TNPA4237S     TNPA4237S     TNPA4237S     TNPA4237S

 GS     TNPA4143ABS    TNPA4143ABS    TNPA4143ABS    TNPA4143AES    TNPA4143AES    TNPA4143AES    TNPA4308S     TNPA4308S     TNPA4308S     TNPA4308S     TNPA4280S     TNPA4280S

 GH     TNPA4135ADS    TNPA4135ADS    TNPA4135ADS         ----           ----           ----           ----          ----          ----          ----          ----          ----

  J     TNPA4425S           ----           ----           ----           ----           ----           ----          ----          ----          ----          ----          ----

 D      TZTNP01EVTJ    TZTNP01HGTU    TZTNP01LXTU    TZTNP01HGTU    TZTNP01LXTU    TZTNP01HJTU    TNPA3983BFS   TNPA4245ADS   TZTNP01LNTU   TZTNP01LPTU   TZTNP01LNTU   TZTNP01LPTU

 C1     TXNC11EVTJU    TXNC11HGTUJ    TXNC11ETTJ     TXNC11HGTUJ    TXNC11ETTJ     TXNC11HATJ     TXNC11HHTUJ   TXNC11NZTU    TXNC11HMTU    TXNC11HNTU    TXNC11HMTU    TXNC11HNTU

 C2     TXNC21EVTJU    TXNC21HGTUJ    TXNC21ETTJ     TXNC21HGTUJ    TXNC21ETTJ     TXNC21HATJ     TXNC21HHTUJ   TXNC21NZTU    TXNC21HMTU    TXNC21HNTU    TXNC21HMTU    TXNC21HNTU

 C3     TXNC31EVTJU    TXNC31HGTUJ    TXNC31ETTJ     TXNC31HGTUJ    TXNC31ETTJ     TXNC31HATJ     TXNC31HHTUJ   TXNC31NZTU    TXNC31HMTU         ----     TXNC31HMTU         ----

 C4     TXNC41EVTJU    TXNC41HGTUJ    TXNC41ETTJ     TXNC41HGTUJ    TXNC41ETTJ     TXNC41HATJ     TXNC41HHTUJ   TXNC41NZTU         ----          ----          ----          ----

 C5     TXNC51EVTJU    TXNC51HGTUJ    TXNC51ETTJ     TXNC51HGTUJ    TXNC51ETTJ          ----      TXNC51HHTUJ        ----          ----          ----          ----          ----

 C6     TXNC61EVTJU    TXNC61HGTUJ    TXNC61ETTJ     TXNC61HGTUJ    TXNC61ETTJ          ----      TXNC61HHTUJ        ----          ----          ----          ----          ----

 SC     TXNSC1EVTJU    TXNSC1HGTUJ    TXNSC1ETTJ     TXNSC1HGTUJ    TXNSC1ETTJ     TXNSC1HATJ     TXNSC1XCTU    TXNSC1NZTU    TXNSC1HMTU    TXNSC1HNTU    TXNSC1HMTU    TXNSC1HNTU

 SU     TXNSU1EVTJU    TXNSU1HGTUJ    TXNSU1ETTJ     TXNSU1HGTUJ    TXNSU1ETTJ     TXNSU1HJTA     TXNSU1XCTU    TXNSU1NZTU    TXNSU1HMTU    TXNSU1HNTU    TXNSU1HMTU    TXNSU1HNTU

 SD     TXNSD1EVTJU    TXNSD1HGTUJ    TXNSD1ETTJ     TXNSD1HGTUJ    TXNSD1ETTJ     TXNSD1HJTA     TXNSD1XCTU    TXNSD1NZTU    TXNSD1HMTU    TXNSD1HNTU    TXNSD1HMTU    TXNSD1HNTU

 SS     TXNSS1EVTJU    TXNSS1HGTUJ    TXNSS1ETTJ     TXNSS1HGTUJ    TXNSS1ETTJ     TXNSS1HATJ     TXNSS1XCTU    TXNSS1NZTU    TXNSS1HMTUJS TXNSS1HNTUJS TXNSS1HMTU      TXNSS1HNTUJS

SS2 TXNSS21EVTJU       TNPA3841S           ----      TNPA3841S           ----           ----           ----          ----     TNPA4202S          ----     TNPA4202S          ----

SS3 TXNSS31EVTJU       TNPA3842S           ----      TNPA3842S           ----           ----           ----          ----     TNPA4203S          ----     TNPA4203S          ----

 R      TXN/R1DRTU          ----           ----           ----           ----           ----           ----          ----          ----          ----          ----          ----




                                                                                                                                                                                     12
4. Block Diagram




                   13
4. Block Diagram                                                                                                   Signal Processing Circuit (TH-50PZ750)
 
  GS                          DG                                                                               D
                                                                                                               Ca ble DET
 SD Slot          IC7703/4
                                                                                                                IC9003
                                                                                                                                                Vi d e o D a t a
  JG
                   IC1501
                             H D MI 1            IC4503           I C4 5 1 0                                                                                            C1    C2     C3
                             HDM I 2
 GH                                                                            IC8001         IC5100               IC9500        IC9900              SC            SU                     SS
                                                                                              IC5105   LVDS
 HDM I 3        IC3801
                                                                                                                                                                             Panel
                                                                                                                                                                   SD
                                          D ig ital
   G                          TV                      IC8302                            OSD
 Vi d e o i n                Tuner
                                                                                                                                                                        C6    C5     C4
                                                                                                                            Discharge Control
  H                                                                                                                         fo r SC
                             A n al o g
 Vi d e o i n                                                                  IC1100                                                           Vi d e o D a t a
                                                 A n a l o g ( Ma i n)
                                                                                                                            Discharge Control
 Comp in                                                                                                                    for SS
                   IC3001                 A n al o g ( S u b)     IC4001
    PC

 Monitor out




IC7703/4 (GS Board)          IC4503 (DG Board)                                                                IC9500 (D Board)
     : Switch IC                  : Switch IC                                                                      : FPGA (LVDS Receiver, Discharge Control)
IC1501 (JG Board)            IC4510 (DG Board)                                                                IC9900 (D Board)
     : Peaks PRO IC               : HDMI/ IF, A/D IC                                                               : PD1-M (Sub Field Processor, Data Driver Processor)
IC3801 (GH Board)            IC8302 (DG Board)                                                                IC9003 (D Board)
     : HDMI EQ                    : Front End Processor IC                                                         : Micom
IC3001 (H Board)             IC4001 (DG Board)
     : Video Switch               : GC3FS (Video Processing for Sub Window)
                             IC8001 (DG Board)
                                  : Peaks Lite2 (Digital Video Processor)
                             IC5100 (DG Board)
                                  : Video Processor IC (Format Converter)
                             IC5105 (DG Board)
                                  : LVDS Transmitter
                             IC1100 (DG Board)
                                  : Micom
                                                                                                                                                                                               14
5. Troubleshooting




                     15
5. Troubleshooting                                                 P i ct u re P ro b l e m ( 1 -1 )
 

   Abnormal Picture (All over the screen)

                                         
         No Picture          Noise Picture     Noise Picture
                                                                      DG, D Board


                                                                  

                              Noise Picture     Irregular Color       1. Disconnect D5 connector
        Vertical Line        (OSD also NG)     (OSD also NG)
                                                                      2. Enter t o the Test pattern

                                                                  

                                                                                                                       No           After disconnect D5 connector     No
                                                Irregular Color          Can you see the
                                                                                                                                            then Power ON.                                        D Board
                                                                        OSD on the screen?
       Horizontal Line       Horizontal Line   (OSD also NG)                                                                      Can you see the white pattern (*1)?

                                                                                          Yes                                                                    Yes


                                                                                                                                                       DG B o ar d

                                                                      E nt er t o t h e t es t p a tt er n.            No
                                                                           Can you see the                                        D Board
                                                                       pattern (*1) normally?

   (Original Picture)
                                                                                          Yes

                                                                                                        (*1)
                                                                                DG B o ar d               W h i t e P a t t e r n a n d T e s t P a t t e r n a r e g e n e r a t e d b y IC 9 5 0 0 o f D B o a r d .
                                                                                                          When these patterns are normally displayed on the screen, It can be seem
                                                                                                          good processing circuit between the D board and panel drive circuit.

                                                                                                        Notice :
                                                                                                         R e g ar di n g i n f or m a ti o n f o r t es t p a t t er n i n d et ai l ,
                                                                                                         P l e as e r e f e r t o P a g e 2 2 , 2 3 .                                                            16
5. Troubleshooting                                                                                                           P i ct u re P ro b l e m ( 1 -2 )
 

  GS                               DG                                                                                    D
                                                                                                                         Ca ble DET
 SD Slot          IC7703/4
                                                                                      Waveform                            IC9003
                                                                                      4, 5, 6, 7                                                           Vi d e o D a t a
  JG
                   IC1501
                                  HDM I 1             IC4503           IC4510                                                                                                           C1        C2        C3
                                  H DM I 2
 GH                                                                                  IC8001             IC5100               IC9500         IC9900              SC            SU                                      SS
                                                                                                        IC5105   LVDS
 HDM I 3        IC3801
                                                                                                             DG5    D5                                                                           Panel
                                                                                                                                                                              SD
                                               Digital
   G                               TV                      IC8302                                 OSD                         Test
                                  Tuner                                                                                      Pattern
 Vi d e o i n   Waveform 1
                                                                                                                                                                                        C6        C5        C4
                                                                                                                                       Discharge Control
  H                                                                                                                                    for SC
                                  A n al o g                                                            Waveform 2, 3
                                                                                     I C1 1 0 0                                                            Vi d e o D a t a
 Vi d e o i n                                         A n a lo g ( Ma i n )
                                                                                                                                       Discharge Control
 Comp in                                                                                                                               f or S S
                   I C3 0 0 1                  A n al o g ( S u b)     IC4001
    PC

 Monitor out




 
  Waveform 1                    Waveform 2                                    Waveform 3                     Waveform 4                       Waveform 5                      Waveform 6                 Waveform 7




  Video Signal                  LVDS Signal                                   LVDS Signal                    U Signal                         Clock Signal                    Clock Signal               Clock Signal
  (Check at C4552)              (Check at FL5015)                             (Check at FL5015)              (Check at R4639)                 (Check at R4636)                (Check at R4646)           (Check at R4645)

   Notice :
    If you can measure the above waveforms by oscilloscope, you can identify which DG board is good or not.




                                                                                                                                                                                                                            17
5. Troubleshooting                                                                                  Picture Problem (2)
 

   Electronic Abnormal Discharge Picture (All over the screen)

                                                                          

                                                                                                          SC, SU, SD Board


                                                                                                   

                                                                                                          Disconnect SU or SD Board


                                                                                  
                                                                                                                                                                                  Vi d e o D a t a
    Disconnect SU board from             Connect SU board, Disconnect SD                                   Ca ble DET
                                  No                                               No                                                        (Wavef or m
    SC board then Power ON.                 b o a r d fr o m S C b o a r d t h e n
                                                                                        SC Board
                                                                                                                                      D          a t TPSC1)
     Can you see the picture             Power ON. Can you see the picture                                     IC9003
      normally at lower half?                 normally at upper half?                                                                                                        C1        C2            C3
                                                                                                                                               SCAN DRIV
                 Yes                                         Yes
                                                                                                               IC9500        IC9900                                SC   SU
                                                                                                   LVDS
           SU Board                                   SD Board                                            D5                                                                       Panel
                                                                                                                                                                        SD
                                                                                                                Test
     Notice :                                                                                                  Pattern
                                                                                                                                             Discharge Control for SC        C6        C5            C4
      You can also diagnose which board is wrong by measuring waveform at TPSC1.
      Diagnosis procedure is as follows.
             Situation                 Condition                     Cause
                                                                                                                                                                                  Vi d e o D a t a
       Disconnect SU Board                                                                                               Discharge Control
                                    Waveform OK                    S U Bo ar d                                           f or SS
          Connect SD
       Disconnect SD Board
                                    Waveform OK                    S D B o a rd
           (Connect SU)
                                                                   S C Bo ar d
      Disconnect Both Boards        Waveform OK
                                                                   (D Board)
                                                                                                                                                                                                      18
5. Troubleshooting                                                          P i ct u re P ro b l e m ( 3 -1 )
 

   Abnormal Picture, Vertical Line (Corner Area, Some part of the screen)

                                                  
                                                                               D, C Board, Plasma Panel
                                                                           

                                                                                I s a f e w t hi n v e r t i c a l l i n e    No     D Board
                                                                                displayed on the screen?
                                                                                                                                    (C Board)
                                                                                               (*1)

                                                                                                      Yes
                                                                                                                   (*1)
                                                                                                                     Regarding idea of diagnosis for vertical line problem, please refer to Page 19,
                                                                                                P a n el             24 and the following idea.

 
     (Dual Scan Drive e.g. 42 inch)                                        (Single Scan Drive e.g. 42 inch)



                                                                 C Board


       Full vertical line               Trouble at corner area               Full vertical line                                     Thin vertical line
                                                                                                                                                              Panel


                              D Board                                                                               D Board

       Vertical lines at                Thin vertical line                   Vertical lines at                                      Half size vertical
       left or right half                                        Panel       left or right half                                     line of flexible cable




      Abnormal picture                  Half size vertical                  Abnormal picture
      at left or right half             line of flexible cable              at left or right half
                                                                                                                                                                                               19
5. Troubleshooting                                                                   P i ct u re P ro b l e m ( 3 -2 )
 

 Model No: TH-65/ 58/ 50PZ750, TH-58/ 50PZ700, TH-50PZ77                               Model No: TH-42PZ700, TH-42PZ77
 Panel Type: 1080p resolution panel Scan System: Dual Scan Drive                       Panel Type: 1080p resolution panel Scan System: Dual Scan Drive

  Ca ble DET                          Vi d e o D a t a                                  Ca ble DET                       Vi d e o D a t a
     I C9 0 0 3                D                                                           IC9003               D
                                                              C1    C2     C3
                                                                                                                                             C1           C2
      IC9500           IC9900              SC            SU                     SS         IC9500         IC9900
                                                                                                                           SC           SU                     SS

D5                                                                 Panel              D5                                                          Panel
                                                         SD                                                                             SD
       Test                                                                                 Test
      Pattern                                                                              Pattern
                                                                                                                                             C4           C3
                                                              C6    C5     C4                        Discharge Control
                  Discharge Control                                                                  for SC
                  fo r S C                                                                                               Vi d e o D a t a
                                      Vi d e o D a t a
                                                                                                     Discharge Control
                  Discharge Control                                                                  for SS
                  fo r SS



 Model No: TH-50PX77, TH-50PX75                                                        Model No: TH-42PX77, TH-42PX75
 Panel Type: HD Panel Scan System: Single Scan Drive                                   Panel Type: HD Panel Scan System: Single Scan Drive

  Ca b le DET                                                                           Ca bl e DE T
     IC9003                    D                                                           IC9003               D


      IC9500           I C9 9 0 0          SC            SU                     SS         IC9500         IC9900
                                                                                                                           SC           SU                     SS

D5                                                                 Panel              D5                                                          Panel
                                                         SD                                                                             SD
       Test                                                                                 Test
      Pattern                                                                              Pattern
                                                                                                                                             C2           C1
                                                              C3    C2     C1                        Discharge Control
                  Discharge Control                                                                  fo r SC
                  fo r SC                                                                                                Vi d e o D a t a
                                      Vi d e o D a t a
                                                                                                     Discharge Control
                  Discharge Control                                                                  fo r SS
                  f or SS




                                                                                                                                                                    20
6. Appendix




              21
6. Appendix                                                  Diagnosis by Test Pattern (1)
 
 In case of PDP, the picture problem at all over the screen (Picture Noise, Full Vertical Line) is mainly caused
 by D or DG (A) board defective. This Test Pattern is able to diagnose D or DG (A) board. Because, D board had Test
 Pattern. So, we can judge by using Test Pattern which is defective. Regarding diagnosis for these board,
 please confirm as follows.
                                                  
                                                            R/G/B/W             White
 All Models                                                 (PZ series:by DG)   (PZ series:by DG)
                                                            (PX series:by A)    (PX series:by A)    White (by D)      Red
 
 Picture Noise, Full Vertical Line
                                                                       on /off Ag in g
        Pattern    Defective Board
       Abnormal    D Board
                                                                     Whi te                            Blue          Green
                   DG Board (or D board)      PZ series               frame                                        Ramp green
        Normal
                   A Board (or D board)       PX series

                                      Scroll       Ramp white        Ramp red
1. While pressing "VOLUME-" button of the TV set,
   press "RECALL" button of the remote control three
   times within 2 seconds.                                    A and B zone         Color bar        1% window      Ramp blue
2. Push button "1" of Remote Controller several times,
   and select "OPTION" setting.                             
3. Press "OK" button of Remote controller for three         Example Picture
   seconds or more to place the unit in the test pattern.



                                                                                                                               22
6. Appendix                                                           Diagnosis by Test Pattern (2)
 
 In case of No picture problem (Sound OK), the defective board is mainly DG (A) or D board. But in this case,
 Test Pattern isn't useful for diagnosis. Because, this symptom can not display OSD and not enter to the
 Service Mode. This method is possible to judge the defective board in this symptom.
 
 All Models                                                      
                                                                                               (DG5 Connector)

 No picture (Sound OK)
 
 Power ON after removing DG5 Connector
          Pattern       Defective Board
                     DG Board (D board)            PZ series
    White Picture
                     A Board (D board)             PX series
      No Picture     D board (SC or SS)


1. This white pattern is generated by IC9900 on D board.
2. When Power ON after removing DG5 (A5) connector, white picture is provided to panel drive circuit.
Then, white picture automatically appears in normal situation.

 DG                                          D
 IC1100
                                             IC9500                IC9900                                          VIDEO DATA
   MICRO                                               PICTURE
 PROCESSOR                                             OUTPUT                                         DATA
                                                                    PLASMA AI        S.F. PROCESSOR
                    IC5100                                                                            DRIVER
                    IC5105                                                                                                      To C Board
 IC8002                           LVDS
                     LVDS                          LVDS                     White Picture
                             DG          D
 Peaks Lite2        TRANS                        RECEIVER
                    MITTER    5          5
                                                                                                                                       23
6. Appendix                                                                 Idea of diagnosis for Vertical Line

      NG Area (Front view)

  P an el                                           case1                                          case2
                                                                Thin vertical line                          A number of blocks
                        case1        case2                       or 1 bl oc k n o li gh t in g              no lighting

                                                     PDP panel (Driver IC) NG                       D board ( or C board) NG
                                                     ( o r D b o a r d o r C b o a rd )
                   IC   IC                IC   IC
                                                       1 Line                     1 Block                            2 Blocks

      B uffer IC             BBffffr rC
                              uu e e I               P D P P a ne l     Buffer                      P D P P a ne l
 C2                C1 C1                                                                           D-board ( or C-board)




                                                            Driver IC            Driver IC                 Driver IC            Driver IC
                                                                                             FPC                                            FPC


                                           D rive
                                                         C Board                                        C Board
                                           IC(2)
                                           inside                       Buffer                                         Buffer

                                                                                                                     or
                                                                       D Board                                        D board


                                                                                                                                             24
Note




       25
R



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