Panasonic TH-42PW3 Service Manual
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Service Manual
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ORDER NO. ITD0008011C0
D10
Wide Plasma Display
TH-42PW3/TH-42PWD3
l
GP3D Chassis
Specifications
Power Source:
AC 230V 50/60Hz (A B and E version)
AC110V 50/60Hz (U version)
Power Consumption: 295 W
2.3W (stand-by condition)
1.4W (Main off condition)
Terminal:
AV
Video Input/ Output (BNC)
1.0 Vp-p (75ohm)
NTSC PAL PAL-60 SECAM M-NTSC
S-Video input (Mini Din 4 pin)
Y 1.0 Vp-p (75ohm)
C 0.286 Vp-p (75ohm)
Audio
0.5 Vrms (RCA type)
Component/RGB In (RCA type)
Y/G
1.0 Vp-p (including Sync.)
PB/B
±0.35 Vp-p
PR/R
±0.35 Vp-p
HD
1.0 - 5.0 Vp-p
VD
1.0 - 5.0 Vp-p
PC
VGA
SVGA XGA SXGA UXGS(Compatible)
(High-density D-sub 15 pin)
Audio (3.0 mm ) 0.5 Vrms
Speakers External speakers
Impedance 6 ohm rated input 8 W or more recommended.
SERIAL
RS-232C compatible (D-Sub 9PIN)
TUNER
Optional (High-density D-Sub 26PIN)
Display :
Type 42 inch (106 cm diagonal 16:9)+ RC
No. of Pixels
(W853 x H480)
No. of Dots
(W 2559 x H 480)
Dimensions:
Display unit
Height
610 mm
Width
1020 m m
Depth
89 mm
Weight (Mass)
29.5kg net (main unit only)
33.7kg (with speakers)
SCHEMA*99

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Summary of Contents for Panasonic TH-42PW3

  • Page 1 Service Manual TOP NEXT ORDER NO. ITD0008011C0 Wide Plasma Display TH-42PW3/TH-42PWD3 GP3D Chassis Specifications Power Source: AC 230V 50/60Hz (A B and E version) AC110V 50/60Hz (U version) Power Consumption: 295 W 2.3W (stand-by condition) 1.4W (Main off condition) Terminal: Video Input/ Output (BNC) 1.0 Vp-p (75ohm)
  • Page 2: Adjustment Procedure

    8 Adjustment Procedure TOP PREVIOUS NEXT 8.1 + B Set-up 8.1.1 Item / Preparation 8.1.2 Adjustments 8.2 Driver Set-up 8.2.1 Item / Preparation 8.2.2 Adjustments 8.3 Initialization Pulse Adjust 8.4 P.C.B. (Printed Circuit Board) exchange 8.4.1 Caution 8.4.2 Quick adjustment after P.C.B. exchange 8.5 Adjustment Volume Location 8.6 Test Point Location TOP PREVIOUS NEXT...
  • Page 3 8.1 + B Set-up TOP PREVIOUS NEXT 8.1.1 Item / Preparation 8.1.2 Adjustments TOP PREVIOUS NEXT SCHEMA*99...
  • Page 4: Item/ Preparation

    8.1.1 Item/ Preparation TOP PREVIOUS NEXT 1. Input a Grey scale signal. 2. Set the picture controls: - Picture mode: Normal White balance: Normal TOP PREVIOUS NEXT SCHEMA*99...
  • Page 5 8.1.2 Adjustments TOP PREVIOUS NEXT Adjust and confirm indicated test point for the specified voltage. Adjust Name Volume Voltage Test Point Remarks Vsus R605 170V ± 1V P11 pin 2 R590 67V ± 0.5V P12 pin 1 Confirm Name Voltage Test Point Remarks 15.4V ±...
  • Page 6: Driver Set-Up

    8.2 Driver Set-up TOP PREVIOUS NEXT 8.2.1 Item / Preparation 8.2.2 Adjustments TOP PREVIOUS NEXT SCHEMA*99...
  • Page 7 8.2.1 Item/ Preparation TOP PREVIOUS NEXT 1. Input an APL 100 % white signal. 2. Set the picture controls: - Picture mode: Normal White balance: Cool Aspect: 16:9 TOP PREVIOUS NEXT SCHEMA*99...
  • Page 8 8.2.2 Adjustments TOP PREVIOUS NEXT Adjust driver section voltages referring the panel data on the panel data label. Name Test Point Voltage Volume Remarks Vsus TPVSUS (SS) 170V ± 1V R605 (P) TPVBK (SC) 155V ± 5V R6443 (SC) TPVE (SS) 158V ±...
  • Page 9: Initialization Pulse Adjust

    8.3 Initialization Pulse Adjust TOP PREVIOUS NEXT 1. Input a Cross hatch signal. 2. Set the picture controls: - Picture mode: Normal White balance: Cool Adjust the indicated test point for the specified wave form. Test point Volume Level T1 TPSC1 (SC) R6523 (SC) 20 ± 15μ Sec T2 TPSS1 (SS) R6557 (SC) 170 ±...
  • Page 10: Printed Circuit Board) Exchange

    8.4 P.C.B. (Printed Circuit Board) exchange TOP PREVIOUS NEXT 8.4.1 Caution 8.4.2 Quick adjustment after P.C.B. exchange TOP PREVIOUS NEXT SCHEMA*99...
  • Page 11 8.4.1 Caution TOP PREVIOUS NEXT 1. To remove P.C.B. , wait 1 minute after power was off for discharge from electrolysis capacitors. TOP PREVIOUS NEXT SCHEMA*99...
  • Page 12: Quick Adjustment After P.c.b. Exchange

    8.4.2 Quick adjustment after P.C.B. exchange TOP PREVIOUS NEXT P.C.B. Name Test Point Voltage Volume Remarks P Board Vsus TPVSUS (SS) 170V ± 1V R605 (P) TPVDA (SS) 67V ± 1V R590 (P) SC Board TPVBK (SC) 155V ± 5V R6443 (SC) TPVAD (SC) -90V ±...
  • Page 13: Adjustment Volume Location

    8.5 Adjustment Volume Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 14: Test Point Location

    8.6 Test Point Location TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 15: Service Mode

    9 Service mode TOP PREVIOUS NEXT 9.1 CAT (computer Aided Test) mode 9.1.1 IIC mode 9.1.2 CD mode 9.1.3 SD mode 9.2 IIC mode structure (following items value is sample data.) TOP PREVIOUS NEXT SCHEMA*99...
  • Page 16: Cat (Computer Aided Test) Mode

    9.1 CAT (computer Aided Test) mode TOP PREVIOUS NEXT To exit the CAT mode , access the ID mode and switch off the main power. 9.1.1 IIC mode 9.1.2 CD mode 9.1.3 SD mode TOP PREVIOUS NEXT SCHEMA*99...
  • Page 17: Iic Mode

    9.1.1 IIC mode TOP PREVIOUS NEXT Select the IIC mode by Up/Down button on the remote control at the front page of CAT mode then press the Action button on the remote control. Subject and item are mentioned on page 14. To exit the IIC mode, press the R button on the remote control.
  • Page 18 9.1.2 CD mode TOP PREVIOUS NEXT Select the CD mode by Up/Down button on the remote control at the front page of CAT mode then press the Mute button on the remote control more than 5 sec. Micom software version (IC9354), this version can be upgrade by 1.
  • Page 19 9.1.3 SD mode TOP PREVIOUS NEXT Select the SD mode by Up/Down button on the remote control at the front page of CAT mode then press the Action button on the remote control. To exit the SD mode, press the R button on the remote control.
  • Page 20: Iic Mode Structure (Following Items Value Is Sample Data.)

    9.2 IIC mode structure (following items value is sample data.) TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 21 10 Alignment TOP PREVIOUS NEXT 10.1 Pedestal setting (C) 10.2 Pedestal setting (B) 10.3 NTSC panel white balance 10.4 PAL / SECAM panel white balance 10.5 PC / RGB panel white balance 10.6 HD / 525i / 525p / 625I / 625P panel white balance TOP PREVIOUS NEXT SCHEMA*99...
  • Page 22: Pedestal Setting (C)

    10.1 Pedestal setting (C) TOP PREVIOUS NEXT Note: OSD is the difference between UY model and Except UY model. Picture: Normal (Except UY)/Standard (UY model) White balance (Except UY)/Color Temp (UY model) TOP PREVIOUS NEXT SCHEMA*99...
  • Page 23: Pedestal Setting (B)

    10.2 Pedestal setting (B) TOP PREVIOUS NEXT Note: OSD is the difference between UY model and Except UY model. Picture: Normal (Except UY)/Standard (UY model) White balance (Except UY)/Color Temp (UY model) TOP PREVIOUS NEXT SCHEMA*99...
  • Page 24: Ntsc Panel White Balance

    10.3 NTSC panel white balance TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 25: Pal/ Secam Panel White Balance

    10.4 PAL/ SECAM panel white balance TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 26: Pc/ Rgb Panel White Balance

    10.5 PC/ RGB panel white balance TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 27 10.6 HD/ 525i/ 525p/ 625I/ 625P panel white balance TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 28: Troubleshooting Guide

    11 Trouble shooting guide TOP PREVIOUS NEXT 11.1 Self Check 11.1.1 Display Indication 11.1.2 Power LED Blinking timing chart 11.2 No Power 11.3 No Picture 11.4 Local screen failure TOP PREVIOUS NEXT SCHEMA*99...
  • Page 29: Self Check

    11.1 Self Check TOP PREVIOUS NEXT 11.1.1 Display Indication 11.1.2 Power LED Blinking timing chart TOP PREVIOUS NEXT SCHEMA*99...
  • Page 30: Display Indication

    11.1.1 Display Indication TOP PREVIOUS NEXT 1. Self-check is used to automatically check the bus line controlled circuit of the Plasma display. 2. To get into the Self-check mode, press the volume down button on the customer controls at the front of the set, at the same time pressing the OFF-TIMER button on the remote control, and...
  • Page 31: Power Led Blinking Timing Chart

    11.1.2 Power LED Blinking timing chart TOP PREVIOUS NEXT 1. Subject Information of LED Flashing timing chart. 2. Contents When an abnormality has occurred the unit, the protection circuit operates and reset to the stand by mode. At this time, the defective block can be identified by the number of blinkes of the Power LED on the front panel of the unit.
  • Page 32 11.2 No Power TOP PREVIOUS NEXT [First check point] There are following 3 states of No Power indication by power LED. 1. No lit 2. Green is lit then turns red blinking a few seconds later. 3. Only red is lit. 1.
  • Page 33 11.3 No Picture TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...
  • Page 34: Local Screen Failure

    11.4 Local screen failure TOP PREVIOUS NEXT Plasma display may have local area failure on the screen. Fig - 1 is the possible defect P.C.B. for each local area. Fig - 1 TOP PREVIOUS NEXT SCHEMA*99...
  • Page 35: Option Setting

    12 Option Setting TOP PREVIOUS NEXT Hidden Option Menu for GP6D series GP6D chassis series have special function and operation setting facility called Option Menu. This Option Menu is useful for special function required customers. This should be set at the installation stage.
  • Page 36: Block And Schematic Diagrams

    14 Block and Schematic Diagrams TOP PREVIOUS NEXT 14.1 Schematic Diagram Notes 14.2 Main Block Diagram 14.3 PF-Board Block Diagram 14.4 PF-Board Schematic Diagram 14.5 P-Board Block Diagram 14.6 P-Board (1 of 2) Schematic Diagram 14.7 P-Board (2 of 2) Schematic Diagram 14.8 HX-Board Schematic Diagram 14.9 HY-Board Block Diagram 14.10 HY-Board (1 of 2) Schematic Diagram...
  • Page 37 14.25 D-Board (8 of 11) Schematic Diagram 14.26 D-Board (9 of 11) Schematic Diagram 14.27 D-Board (10 of 11) Schematic Diagram 14.28 D-Board (11 of 11) Schematic Diagram 14.29 C1, C2 and V1-Board Block Diagram 14.30 C1-Board Schematic Diagram 14.31 C2 and V1-Board Schematic Diagram 14.32 SC-Board Block Diagram 14.33 SC-Board (1 of 2) Schematic Diagram 14.34 SC-Board (2 of 2) Schematic Diagram...
  • Page 38: Schematic Diagram For Printing With A4

    18 Schematic Diagram for printing with A4 TOP PREVIOUS NEXT TOP PREVIOUS NEXT SCHEMA*99...

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Th-42pwd3

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