JVC PD-35D30ES, PD-35D30ES/A, PD-35D30KES Service Manual

SERVICE MANUAL

PDP COLOUR TELEVISION

PD-35D30ES

PD-35D30ES/A

PD-35D30KES

BASIC CHASSIS

MK

Supplementary

These models corresponded to the printed circuit board exchange in the PDP panel. Therefore, this service manual describes only the information relevant to it.

For details other than those described in this manual, please refer to the PD-35D30ES service manual (No.52091 2003/04), PD-35D30ES/A service manual (No.52091B 2003/06) and PD-35D30KES service manual (No.52091C 2003/10).

TABLE OF CONTENTS

1.CONFIRMING THE MODEL NAME, SERIAL NUMBER, ID NUMBER, AND CODE NUMBER 2

2.MAIN PARTS LOCATION 2

3.INSPECTION OF COMPONENTS ON THE PW BOARD 3

4.DISASSEMBLY PROCEDURE 6

5.CONFIRMING REFERENCE VOLTAGE 8

6.ADJUSTMENTS 9

7.PARTS LIST 10

NOTES AT THE TIME OF PW BOARD EXCHANGE

It will become the cause of failure if dust adheres to the inside of a connector, or a flat wire and a point-of-contact part.

When the PW board is exchanged, be careful of the dust and dirt of the inside of a connector, or a flat wire and a point-of-contact part enough.

COPYRIGHT © 2004 Victor Company of Japan, Limited

No.52091D

2004/6

■CONFIRMING MODEL NAME, SERIAL NUMBER, ID NUMBER AND CODE

NUMBER

NOTE : The panel's ID number is used when you reference the characteristic voltage value of the panel on web site.

Voltage and CODE No.

SERIAL NO. 301201327 Vd=60V Vs=180V CODE AA-01

For example CODE : AA

Model name and serial No.

NEC NP35B2MF01AA	PANEL ID No.
301201327	222212260043
*********************	(12 figures)
*********************
*********************

For example

Model : NP35B2MF01AA

Serial No. : 301201327 (9 figures)

■MAIN PARTS LOCATION

									SCAN RELAY PWB
	COMMON PWB										Flexible cable
											Scan-side A
Flexible cable			COMMON BRANCH PWB					HIGH VOLTAGE			Flexible cable
Common-side A
											Scan-side B
									PWB
Flexible cable
Common-side B
Flexible cable	DIGITAL PWB										Flexible cable
Common-side C											Scan-side C
											Flexible cable
											Scan-side D
	SIGNAL RELAY PWB (left)						SIGNAL RELAY PWB (right)
					Heat-sink
	A	B	C	D	E	F	G	H	I	J

2(No.52091D)

R20

OK: Approx. 10Ω NG: Open

R10

OK: Approx. 2.2Ω NG: Open

■INSPECTION OF COMPONENTS ON THE PW BOARD

Diagnose the PW board in PDP unit by checking defects based on the following items.

1. Inspection of fuses

Measure the resistance of each fuse with a circuit tester, and check OK or NG.

1.1 Glass fuses (F301, F307) on the HIGH VOLTAGE PWB

1.2 Chip fuse (FU701) on the DIGITAL PWB

307 303

301

701

OK: Short

NG: Open

In case of F303, check between the pin 6 (or pin 7) of CN303 and TP307.

OK: Short

NG: Open

1.3Fuse resistances (R10, R4, R6) and chip fuse (R20) on the HIGH VOLTAGE PWB

1.4Fuse resistance (R7) and chip fuse (R9) on the HIGH VOLTAGE PWB

	R4		R7	R7
R4				OK: Approx. 2.2Ω
R10	OK: Approx. 2.2Ω			NG: Open
R6	NG: Open			R9
	R6
		R9		OK: Approx. 10Ω
	OK: Approx. 2.2Ω
R20				NG: Open
	NG: Open

1.5 Fuse resistance (R1) on the HIGH VOLTAGE PWB		1.6 Fuse resistances (R2, R3) on the HIGH VOLTAGE PWB
		R3	R2
	R1		OK: Approx. 2.2Ω
R1	OK: Approx. 2.2Ω		NG: Open
	NG: Open		R3
			OK: Approx. 2.2Ω
		R2	NG: Open

(No.52091D)3

2. Inspection of data ICs

According to the following procedures, measure with a circuit tester and check OK or NG.

Check the pin 5 or pin 6 of the connector [CN11] on the SIGNAL RELAY PWB (right).

OK: Open

NG: Short

Detach the connector [CN11] on the SIGNAL RELAY PWB (right) and check the conduction between the pin 5 (or pin 6) and the ground.

In case of "short", one of the data ICs connecting the signal relay board may be defective, and you should check whether there is any trace of damage on the data IC's surface after removing the heat-sink on the data IC.

3. Inspection of power IC

According to the following procedures, measure with a circuit tester and check OK or NG.

The allocation of power IC to be checked is shown below.

HIGH VOLTAGE PWB

PH2201N

4(No.52091D)