Model: KV-32XBR400, KV-36XBR400 No. 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.
Date: December 11, 2000
Symptom:
(F325) 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
