bulletin_TVP0514_Ž_.pdf part of Sony KV-32XBR400 KV-36XBR400 bulletin_TVP0514_Ž_.pdf, Symptom: There are 2 versions of B-board and 2 versions of HB-board. After replacing the Bboard or the HB-board the picture displayed from a source connected to the VIDEO-2 input will be too bright or too dark if the board that was installed in the set is not the same version as the board that was removed from the set. text manual preview

Text preview for : bulletin_TVP0514_Ž_.pdf part of Sony KV-32XBR400 KV-36XBR400 Symptom: There are 2 versions of B-board and 2 versions of HB-board. After replacing the Bboard or the HB-board the picture displayed from a source connected to the VIDEO-2 input will be too bright or too dark if the board that was installed in the set is not the same version as the board that was removed from the set.

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Sony Service Company National Technical Services A Division of Sony Electronics Inc. Park Ridge, New Jersey 07656

CONFIDENTIAL
Service Bulletin TV Products
No.

CSV-1

Model:

KV-32XBR400, KV-36XBR400

514

Subject: Different Versions Of B-board And HB-board Used In Production. Picture From VIDEO-2 Input Will Be Too Bright Or Too Dark If Old Version Is Connected To New Version. Symptom: (F325)

Date: December 11, 2000

There are 2 versions of B-board and 2 versions of HB-board. After replacing the Bboard or the HB-board the picture displayed from a source connected to the VIDEO-2 input will be too bright or too dark if the board that was installed in the set is not the same version as the board that was removed from the set. An old version HB-board connected to a new version B-board will result in the VIDEO-2 picture being too dark. A new version HB-board connected to an old version B-board will result in the VIDEO-2 picture being too bright. As of the date this bulletin was issued, both versions of the HB-board are available as service parts under their own unique part numbers. However, only the new version B-board is being stocked as a service part. The approximate serial number breakpoints between old and new versions is as follows: KV-32XBR400 old version: up to 8009113 KV-36XBR400 old version: up to 9017765

Solution: Make sure that the following compatibility is followed when replacing
either the B-board or the HB-board. IMPORTANT: Refer to the silk-screened part number on the boards to determine the version. Do not rely on the part number that is stamped on the board! The silkscreened part number may not agree with the stamped number. ACCEPTABLE Old version HB-board (A-1372-835-A) with old version B-board (A-1136-110-A) New version HB-board (A-1372-904-A) with new version B-board (A-1136-147-A)

UNACCEPTABLE Old version HB-board (A-1372-835-A) with new version B-board (A-1136-147-A) New version HB-board (A-1372-904-A) with old version B-board (A-1136-110-A)

Continued on next page......
Reference: Matsuoka E-mail 11/30/00 AUTOFLAGGED - YES
PRINTED IN USA

TV Products Service Bulletin No. 514

As only the new version B-board will be supplied as service parts, you may encounter a compatibility problem if the set has the old version HB-board. In this case, the old HB-board can be easily modified to be compatible with the new version B-board, as follows: Remove: R4505, R4508, R4510, D4501, D4502, D4504. Add jumper wire across: C4503, C4506, C4508.

Making old version HB-board compatible with new version B-board

HB-Board
C4508
Add Jumper Wire

D4501
Remove

D4504 C4503
Add Jumper Wire Remove

D4502
Remove

C4506
Add Jumper Wire

R4510 R4508
Remove Remove

R4505
Remove