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SERVICE MANUAL
PDP COLOUR TELEVISION
1 2006 YA013C
PD-42V31BJE, PD-42V31BSE, PD-42V31BUE
Supplementary
BASIC CHASSIS
MK
Please be informed that the related contents are added due to the change of the PWB in the PDP Unit. Therefore, this service manual describes only the items which differ from those of the PD-42V31BJE, PD-42V31BSE and PD-42V31BUE service manual. For details other than those described in this manual, please refer to the PD-42V31BJE, PD-42V31BSE and PD-42V31BUE service manual (No.YA013, 2003/9)(No.YA013B, 2004/6).
HOW TO IDENTIFY TYPES OF THE PDP PANEL
There are 3 types of PDP used with this model. Make sure to confirm the type of the panel before performing the procedure as the adjustment value varies according to the panel type. Refer to the below table and identify the PDP in accordance with he panel base material and the serial No. Panel base material ALIMINUM DIE-CAST ALIMINUM PRESS PLATE Types of the PDP ALIMINUM DIE-CAST TYPE ALIMINUM PRESS PLATE-A TYPE ALIMINUM PRESS PLATE-B TYPE How to identify types of the PDP ----PANEL SERIAL 1213 xxxx xxxx PANEL SERIAL 1223 xxxx xxxx
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.YA013C 2006/1
TABLE OF NEW AND OLD PWB
PWB assy Name X-MAIN PWB PDP Panel unit No. QLE0023-001 QLE0023-002 QLE0023-003 Y-MAIN PWB QLE0023-001 QLE0023-002 QLE0023-003 LJ92-00943A LJ92-00759A LJ92-00944B LJ92-00759A-S LJ92-01058B Part No. Old LJ92-00758A LJ92-01057B New
SECTION 1 PRECAUTION
Please refer to "PD-42V31BJE, PD-42V31BSE and PD-42V31BUE (No.YA013)" about this section.
SECTION 2 SPECIFIC SERVICE INSTRUCTIONS
Please refer to "PD-42V31BJE, PD-42V31BSE and PD-42V31BUE (No.YA013)" about this section.
SECTION 3 DISASSEMBLY
Please refer to "PD-42V31BJE, PD-42V31BSE and PD-42V31BUE (No.YA013)" about this section.
1-2 (No.YA013C)
SECTION 4 ADJUSTMENT
4.1 ADJUSTMENT AFTER THE Y-MAIN PWB REPLACEMENT < An example of misadjustment of the Y-MAIN PWB >
Faulty light emission occurrence
4.1.1 THE LOCATION OF THE PWB IN THE PDP UNIT
X-MAIN PWB
PDP (PANEL) UNIT
G-BUFFER PWB F-BUFFER PWB Y-BUFFER-U PWB Y-BUFFER-L PWB
LOGIC-MAIN PWB E-BUFFER PWB
Y-MAIN PWB
(No.YA013C)1-3
4.1.2 ADJUSTMENT ITEMS AND TESTING POINTS ON THE Y-MAIN PWB [LJ92-00759A]
VR5004 TP VSCH
TP OUT4
Rear of set
VR5001
VR5003
VR5002
1-4 (No.YA013C)
4.1.3 ADJUSTMENT ITEMS AND TESTING POINTS ON THE Y-MAIN PWB [LJ92-00944B]
VR5004
TP VSCH
TP OUT4
Rear of set
VR5001
VR5003
VR5002
(No.YA013C)1-5
4.1.4 ADJUSTMENT ITEMS AND TESTING POINTS ON THE Y-MAIN PWB [LJ92-00759A-S] [LJ92-01058B]
VR5004 TP VSCH (There is nothing written on the PWB)
TP OUT4
Rear of set
VR5001 VR5003 VR5002
1-6 (No.YA013C)
4.1.5 ADJUSTMENT PROCEDURE There are 3 types of PDP used with this model. Be careful as the adjustment values are different according to the types of the panel. The types of the PDP are as shown in the table below. Types of the PDP ALIMINUM DIE-CAST TYPE ALIMINUM PRESS PLATE-A TYPE ALIMINUM PRESS PLATE-B TYPE How to identify types of the PDP ----PANEL SERIAL 1213 xxxx xxxx PANEL SERIAL 1223 xxxx xxxx
First subfield
Second subfield
Third subfield
VR5001 adjustment (Adjust the flat part of the waveform in the third subfield.) VR5002 adjustment (Adjust the flat part of the waveform.)
VR5003 adjustment (Adjust the flat part of the waveform.)
First subfield
(No.YA013C)1-7
4.1.6 ADJUSTMENT FOR THE ALIMINUM DIE-CAST TYPE (1) Connect an oscilloscope to the TP OUT4. (2) Carry out the adjustment from the Step1 through 4 in order.
TP VSCH
Step1. VR5004 adjustment TEST POINT TP Vsch DC voltmeter 40 V
Step2. VR5003 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step3. VR5002 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step4. VR5001 adjustment TEST POINT TP OUT4 Oscilloscope 15 us
VR5001
VR5003
VR5002
1-8 (No.YA013C)
4.1.7 ADJUSTMENT FOR THE ALIMINUM PRESS PLATE-A TYPE [PANEL SERIAL 1213 xxxx xxxx] (1) Connect an oscilloscope to the TP OUT4. (2) Carry out the adjustment from the Step1 through 4 in order.
TP VSCH
Step1. VR5004 adjustment TEST POINT TP Vsch DC voltmeter 40 V
Step2. VR5003 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step3. VR5002 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step4. VR5001 adjustment TEST POINT TP OUT4 Oscilloscope 15 us
VR5001
VR5003
VR5002
(No.YA013C)1-9
4.1.8 ADJUSTMENT FOR THE ALIMINUM PRESS PLATE-B TYPE [PANEL SERIAL 1223 xxxx xxxx] (1) Connect an oscilloscope to the TP OUT4. (2) Carry out the adjustment from the Step1 through 4 in order.
Step1. VR5004 adjustment TEST POINT TP Vsch DC voltmeter 40 V
TP VSCH (There is nothing written on the PWB) Step2. VR5003 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step3. VR5002 adjustment TEST POINT TP OUT4 Oscilloscope 10 us
Step4. VR5001 adjustment TEST POINT TP OUT4 Oscilloscope 15 us
VR5001
VR5003
VR5002
1-10 (No.YA013C)
SECTION 5 TROUBLESHOOTING
Please refer to "PD-42V31BJE, PD-42V31BSE and PD-42V31BUE (No.YA013)" about this section.
(No.YA013C)1-11
Victor Company of Japan, Limited Flat Panel Display Category 12, 3-chome, Moriya-cho, Kanagawa-ku, Yokohama-city, Kanagawa-prefecture, 221-8528, Japan
(No.YA013C)
Printed in Japan VPT