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JVC PD-42V31BJE Service Manual

Pdp colour television
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SERVICE MANUAL
PDP COLOUR TELEVISION
VM-42V31BJE
VM-42V31BSE
VM-42V31BUE
[PLASMA DISPLAY UNIT]
1 PRECAUTION ......................................................................................................................................................... 1-4
2 SPECIFIC SERVICE INSTRUCTIONS ...................................................................................................................... 1-8
3 DISASSEMBLY ..................................................................................................................................................... 1-11
4 ADJUSTMENT ...................................................................................................................................................... 1-24
5 TROUBLESHOOTING ........................................................................................................................................... 1-50
COPYRIGHT © 2003 VICTOR COMPANY OF JAPAN, LTD.
PD-42V31BJE
PD-42V31BSE
PD-42V31BUE
TABLE OF CONTENTS
BASIC CHASSIS
MK
TU-42V31BJE
TU-42V31BSE
TU-42V31BUE
[RECEIVER UNIT]
No.YA013
2003/9

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Summary of Contents for JVC PD-42V31BJE

  • Page 1 SERVICE MANUAL PDP COLOUR TELEVISION BASIC CHASSIS PD-42V31BJE PD-42V31BSE PD-42V31BUE TU-42V31BJE TU-42V31BSE TU-42V31BUE [RECEIVER UNIT] VM-42V31BJE VM-42V31BSE VM-42V31BUE [PLASMA DISPLAY UNIT] TABLE OF CONTENTS 1 PRECAUTION ................................. 1-4 2 SPECIFIC SERVICE INSTRUCTIONS ........................1-8 3 DISASSEMBLY ..............................1-11 4 ADJUSTMENT ..............................1-24 5 TROUBLESHOOTING ............................
  • Page 2 SPECIFICATION Items Contents Dimensions (W x H x D) Plasma display unit 116.0cm x 73.1cm x 9.8cm Receiver unit 43.5cm x 9.9cm x 38.2cm Mass Plasma display unit 38.0kg Receiver unit 5.3kg TV RF System CCIR B/G, I, D/K, L Colour System TV Mode PAL / SECAM...
  • Page 3 21-pin Euro connector (SCART) : EXT-1/EXT-2/EXT-3 PinNo. Signal Designation Matching Value EXT-1 EXT-2 EXT-3 AUDIO R output 500mV(rms) (Nominal), Used (TV OUT) Used (LINE OUT) Not used Low impedance AUDIO R input 500mV(rms) (Nominal), Used Used Used High impedance AUDIO L output 500mV(rms) (Nominal), Used (TV OUT) Used (LINE OUT)
  • Page 4 SECTION 1 PRECAUTION 1.1 SAFETY PRECAUTIONS [EXCEPT FOR UK] (1) The design of this product contains special hardware, (8) When service is required, observe the original lead dress. many circuits and components specially for safety Extra precaution should be given to assure correct lead dress in the high voltage circuit area.
  • Page 5 1.2 SAFETY PRECAUTIONS [FOR UK] (1) The design of this product contains special hardware and many circuits and components specially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits.
  • Page 6 INSTALLATION 1.3.2 INSTALLATION REQUIREMENTS 1.3.1 HEAT DISSIPATION Ensure that the minimal distance is maintained, as specified If the heat dissipation vent behind this unit is blocked, cooling below, between the unit with and the surrounding walls, as well efficiency may deteriorate and temperature inside the unit will as the floor etc.
  • Page 7 PRECAUTIONS REGARDING PDP 1.4.1 PRECAUTIONS DURING NOTES FOR TRANSPORTATION 1.4.4 OPTICAL FILER (PANEL FILTER) When transporting the display unit, pressure exerted on the Avoid placing the unit under direct sunlight over a prolonged internal PDP (Pplasma Ddisplay Ppanel) due to improper period of time.
  • Page 8 The images that are currently seen can be viewed on the memo screen (still picture). It is convenient for taking down notes like application address and recipe of cooking program etc, while enjoying the current program. UNIT COMPOSITION MODEL PLASMA DISPLAY UNIT RECEIVER UNIT PD-42V31BJE VM-42V31BJE TU-42V31BJE PD-42V31BSE VM-41V31BSE TU-42V31BSE PD-42V31BUE...
  • Page 9 TECHNICAL INFORMATION 2.3.1 PDP STRUCTURE AND CHARACTERISTIC This unit (Display Unit) uses the flat type panel PDP (Plasma Display Panel), instead of the conventional CRT (Cathode Ray Tube), as a display unit. 2.3.1.1 PIXEL (CELL) ARRAY PDP is constructed by sealing the xenon, which emits neon and ultraviolet rays for discharging purpose, in between the electrodes lay on the front glass substrate and rear glass substrate.
  • Page 10 2.3.2 MAIN CPU FUNCTIONAL TABLE (RECEIVER UNIT) Pin No. Terminal Name Port Name Remark Pin No. Terminal Name Port Name Remark VSS33 VSS33 REMOCON P2.8 VDD33 VDD33 3.3V KEY1 P2.9 KEY2 P2.10 (NOR/INST) KEY3 P2.11 TV_LINK P2.12 RESET-IN RSTIN POWER P2.13 SCL0 P3.0...
  • Page 11 SECTION 3 DISASSEMBLY DISASSEMBLY PROCEDURE [DISPLAY UNIT] CAUTION: • When exchanging parts etc. with the front side (PDP side) 3.1.1 REMOVING THE REAR COVER (Fig. 1) fancing down,please place a protection sheet below before (1) Remove the power cord and system cable. starting, so as to prevent scratches on the front side.
  • Page 12 3.1.2 REMOVING THE TERMINAL COVER (Fig.2) (3) Disconnect the connectors [CN60CB], [CN60SR], [CN60SL] from the SPEAKER. • Remove the REAR COVER. (4) Remove the 4 screws [J], and remove the AUDIO PWB. (1) Remove the 6 screws [C], withdraw the CHASSIS SHIELD NOTE: BRACKET.
  • Page 13 3.1.7 REMOVING THE TEMP. SENSOR PWB (Fig.3) 3.1.10 REMOVING THE PDP UNIT (Fig.3) • • Remove the REAR COVER. Remove the REAR COVER. • (1) Disconnect the connector [CN00V] from the DISPLAY Remove the CHASSIS SHIELD BRACKET. • INTERFACE PWB. Remove the TERMINAL COVER.
  • Page 14 3.1.11 REMOVING THE PWB IN PDP UNIT 3.1.11.6 REMOVING THE Y-BUFFER L PWB (Fig.4 ) 3.1.11.1 REMOVING THE SMPS PWB (Fig.4 ) • Remove the PDP UNIT. • Remove the PDP UNIT. (1) Disconnect the connectors [CN5501], [CN5502], (1) Disconnect the connectors [CN8002], [CN8003], [CN5503], [CN5504], [CN5505],[CN5506] from the Y- [CN8004], [CN8006], [CN8007], [CN8008], [CN8009] from BUFFER L PWB.
  • Page 15 CN9005 CN8003 CN9007 BUFFER CN8009 CN9006 CN8002 CN8004 CN9002 CN9001 CN8007 CN201 CN9004 CN8008 CN803 CN5008 CN101 CN5001 CN401 CN402 CN5401 CN403 CN5404 CN5402 CN4001 CN5406 CN4003 CN5403 CN5405 CN4004 CN5505 CN5501 CN5506 CN4002 CN5502 CN4005 CN5504 CN5503 FC4 FC4 CN806 CN401 CN402 CN403...
  • Page 16 3.1.12 REMOVING THE SPEAKER ASS’Y(R) AND SPAKER 3.1.13 REMOVING THE WOOFER SPEAKER ASS’Y (Fig. 5) ASS’Y(L) (Fig. 5) • Remove the REAR COVER. • Remove the REAR COVER (1) Disconnect the connector [CN60CB] from the AUDIO PWB. (1) Remove the 4 screws [f], withdraw the BACK COVER(R) (2) Remove the 6 screws [j], and remove the WOOFER and the SP HOLDER ASS’Y.
  • Page 17 3.1.14 REMOVING THE FRONT FILTER (Fig. 6) 3.1.15 REMOVING THE TOP FRAME BRACKET, BOTTOM FRAME BRACKET AND SIDE FRAME BRACKET (Fig. 6) • Remove the REAR COVER. • • Remove the CHASSIS SHIELD BRACKET. Remove the REAR COVER. • • Remove the TERMINAL COVER.
  • Page 18 DISASSEMBLY OF PROCEDURE [RECEIVER UNIT] 3.2.9 REMOVING THE MAIN PWB AND RECEIVER POWER PWB • Remove the TOP COVER. 3.2.1 REMOVING THE TOP COVER • Remove the REAR COVER. (1) Remove the 4 screws [A] on the both left and right sides. •...
  • Page 19 (x2) TOP COVER (x3) SUPPORT BRACKET (x2) MI-COM PWB PB HOLDER DIST PWB MI-COM INTERFACE DIST RELAY (x5) AV JACK PWB MI-COM AV SWITCH PWB HOLDER (x3) (x4) TERMINAL BRACKET RECEIVER POWER PWB FRONT PANEL MAIN PWB (x4) AC INLET FRONT CONTROL (x2)
  • Page 20 REPLACEMENT OF MEMORY IC 3.3.1 MEMORY IC This unit uses the nonvolatile memory IC. The memory IC memories data for video and deflection circuits. To replace the memory IC without the data written, malfunctions might occurred while power is on, and the normal image might not appear. When replacing the memory IC, be sure to use the IC written with the initial values of data.
  • Page 21 3.3.3.3 SETTING OF MENU SCREEN Setting item Setting value Setting item Setting value PICTURE SETTING HEADPHONE PICTURE MODE BRIGHT VOLUME CONTRAST TV SPEAKER BRIGHT OUTPUT MAIN SHARP EXT SETTING COLOUR S-IN EXT 2, 3, 5 : S-IN COLOUR TEMP. NORMAL ID LIST Space EXT-1 --- >...
  • Page 22 3.3.4 SERVICE MENU SETTING ITEMS Service menu Setting item Service menu Setting item 1. IF 5.VSM PRESET 1. VCO PICTURE MODE 2. DELAY POINT [Do not adjust] 1.CONT 2.BRIGHT 2. VC 1.CUT OF R 3.SHARP 2.CUT OF G 4.COLOUR 3.CUT OF B 5.TINT 4.DRIVE R COLOUR TEMP.
  • Page 23 3.4 REPLACEMENT OF CHIP COMPONENT 3.4.1 CAUTIONS (1) Avoid heating for more than 3 seconds. (2) Do not rub the electrodes and the resist parts of the pattern. (3) When removing a chip part, melt the solder adequately. (4) Do not reuse a chip part after removing it. 3.4.2 SOLDERING IRON (1) Use a high insulation soldering iron with a thin pointed end of it.
  • Page 24 SECTION 4 ADJUSTMENT ADJUSTMENT PREPARATION Presetting position Setting item Settings NOTE: Prior to the following procedure, be sure to connect the PICTURE MODE STANDARD receiver unit and the display unit. PICTURE adjustments All center (00) COLOUR TEMP. NORMAL (1) You can make the necessary adjustments for this unit DIGITAL VNR with either the remote control unit or with the adjustment Super Digi Pure...
  • Page 25 4.3.2 DISPLAY UNIT CN5404 CN5404 CN5405 CN5505 CN5506 CN5504 CN5401 CN5402 CN5403 CN5501 CN5502 CN5503 (No.YA013) 1-25...

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