PSB F-475
This Bulletin Number is PSB F-475
APC : 376, 720
Date: February 1996
Deadline Date:February 1997
Memo To: PSB Mailing List
From: Radio Products Group/Product Services,
Plantation
Subject: Changeover from "AN" to
"BN" VISAR model radios.
Scope: Upgraded BN VISAR
models will be replacing AN VISAR
models. The BN controller board is
0.020 inches thicker than the AN
board. These changes have some compatibility ramifications if
replacement of any of the parts listed below is required.
Replacing Controller Boards:
Once the inventory of AN controller
boards is depleted, all replacements MUST be
with BN versions of controller boards, front
covers and audio jack plugs.
As long as inventory lasts, AN controller
boards can be replaced with AN version boards.
AN and BN controller
boards are not directly interchangeable. (See Note)
Replacing Front Covers:
AN front covers can continue to be
replaced with the AN version, if the radio has AN
controller board.
AN front covers will be available after
initiation of BN models.
AN front covers and BN front covers are not directly
interchangeable. (See Note)
If an AN front cover is to be replaced
with a BN front cover, then the controller board
and audio jack plug must also be upgraded to BN
versions. (See Note)
Replacing Rear Covers:
AN rear covers will continue to be
available after initiation of BN models.
BN rear covers cannot
be assembled with AN front covers.
AN and BN rear covers
can be assembled with BN front covers.
NOTE : Refer to FMR-1787-1 included in Service Manual
68P81073C75-B for a complete list of applicable part numbers for
the models number being serviced.
This bulletin is provided for information only.
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