JVC PD-35DX Service Manual
SERVICE MANUAL
PDP COLOUR TELEVISION
BASIC CHASSIS
PD-35DX
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 detail s other than thos e describe d in this manual , pleas e refer to the PD-35DX
service manual (No.52089 2003/03).
TABLE OF CONTENTS
1. CONFIRMING THE MODEL NAME, SERIAL NUMBER, ID NUMBER AND CODE NUMBER
2. MAIN PARTS LOCATION
3. INSPECTION OF COMPONENTS ON THE PW BOARD
4. DISASSEMBLY PROCEDURE
5. CONFIRMING REFERENCE VOLTAGE
6. ADJUSTMENTS
7. PARTS LIST
㨯
MK
2
2
3
6
8
9
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 carefu l of the dust and dirt of the inside of a connecto r,
or a flat wire and a point-of-contact part enough.
COPYRIGHT © 2004 Victor Company of Japan, Limited
No.52089B
2004/6
عCONFIRMING 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
301201327
*********************
*********************
*********************
For example
Model : NP35B2MF01AA
Serial No. : 301201327 (9 figures)
عMAIN PARTS LOCATION
COMMON PWB
Flexible cable
Common-side A
Flexible cable
Common-side B
COMMON BRANCH PWB
SCAN RELAY PWB
HIGH VOLTAGE
PWB
PANEL ID No.
222212260043
(12 figures)
Flexible cable
Scan-side A
Flexible cable
Scan-side B
Flexible cable
Common-side C
2(No.52089B)
DIGITAL PWB
SIGNAL RELAY PWB (left) SIGNAL RELAY PWB (right)
Heat-sink
ABCDE F GHI
Flexible cable
Scan-side C
Flexible cable
Scan-side D
J
عINSPECTION 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
㨀㧼
㧲
㧲
1.3 Fuse resistances (R10, R4, R6) and chip fuse (R20)
on the HIGH VOLTAGE PWB
OK: Short
NG: Open
In case of F303, check
between the pin 6 (or
pin 7) of CN303 and
TP307.
R10
OK: Approx. 2.2ǡ
NG: Open
R4
R10
R6
R4
OK: Approx. 2.2ǡ
NG: Open
R6
OK: Approx. 2.2ǡ
R20
NG: Open
R20
OK: Approx. 10ǡ
NG: Open
㧲㨁
OK: Short
NG: Open
1.4 Fuse resistance (R7) and chip fuse (R9) on the
HIGH VOLTAGE PWB
R7
R7
OK: Approx. 2.2ǡ
NG: Open
R9
R9
OK: Approx. 10ǡ
NG: Open
R1
R1
OK: Approx. 2.2ǡ
NG: Open
1.6 Fuse resistances (R2, R3) on the HIGH VOLTAGE PWB1.5 Fuse resistance (R1) on the HIGH VOLTAGE PWB
R3
R2
OK: Approx. 2.2ǡ
NG: Open
R3
OK: Approx. 2.2ǡ
R2
NG: Open
(No.52089B)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.52089B)
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