Sony KDE-55XBR950 (serv.man2) Service Manual ▷ View online
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Perform operation test (Chapter 4.4)
Shipment
No
Yes
Adjustment (Chapter 6)
Yes
1
Replace LOGIC PC board or
panel chassis ?
Fault mode classification (Chapter 4.5)
Fault analysis (Chapter 4.6)
Repair of faulty spots (Chapter 5)
3
Problem repaired?
End of repair
Warranty test (Running)
No
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Perform running test (Burn-in pattern)
Yes
Yes
5
Problem recurs ?
Implement module tapping
2
Turn off the main power
No
Problem symptom nonrecurrence
analysis mode/Shipment process mode
analysis mode/Shipment process mode
Problem recurs ?
3
No
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4.3 CHECKING THE PRODUCT REQUESTED FOR REPAIR
Check the serial ID number of the product requested for repair before starting the problem
analysis and repair. Structure of serial ID number is shown below.
analysis and repair. Structure of serial ID number is shown below.
(1) Checking serial ID number of PDP module (14 digits)
The serial ID number of the product that is brought in for service and that of the
completed panel chassis has the structure as shown below.
completed panel chassis has the structure as shown below.
The serial ID number is shown on the bar code label that is attached to the rear of the
chassis (aluminum).
chassis (aluminum).
N9A 4 01 001A1 01A
Version No.: 01 ~ 99
A ~ Z (excluding I and O)
A ~ Z (excluding I and O)
Lot No.: 001 ~ 999
A ~ Z (excluding I and O)
1 ~ 3
A ~ Z (excluding I and O)
1 ~ 3
Production week code: 01 ~ 53
Production year (low digit): 0 ~ 9
Product code: N9A- model 55 type
Module product label Serial ID label of panel chassis
* The module serial ID number and the serial ID number of the completed chassis are usually the same
when the product is brought in for repair for the first time.
(2) Checking serial ID number of constituent PC boards (12 digits)
The serial ID number of the module constituent PC boards has the following structure.
The serial ID number is shown on the bar code label that is attached to each PC board.
CP 1 01 00001 1A
Version No.: 1 ~ 9 , a~z
A ~ Z (excluding I and O)
A ~ Z (excluding I and O)
Lot No.: 00001 ~ Z9999
Production week code: 01 ~ 53
Production year (low digit): 0 ~ 9
Product code: Different 2 digits for each board
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4.4 OPERATION TEST PROCEDURE
Five screws
Photp 4.1 Photo 4.2
(1) Prepare the test equipment.
(4) Set the module of requested repair to a stand.
(5)
Connect between the CN1/CN2 on the logic board and the CN5/CN7
on the interface board (I/F-jig) by particular cable. (photo4.3)
(6) Turn on the AC power to the interface board (I/F-jig).
(8)
Turn on the PDP go switch on the interface board (I/F-jig). (Then, the main
power of the module is turned on.)
Check Fault Symptom
(7) Select the signal used when a problem occurs, or full white pattern.
(3) Connect the cable connector from PSU board to CN9 on logic board
and CN21 on XSUS board. (photo4.2)
(2) Set the PSU board (PS-jig) by five M3X8 screw on the module of
requestedfor repair. (photo4.1)
CN9
CN21
LOGIC
X-SUS
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