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|Original Chassis:||Setting Test Mode|
|Descr:||Service Bulletin - Symptom:In early production units it is not possible to enter the test mode as outlined in the
Service Manual - pag. 1|
|Group:|| > > |
|Information about the files in archive:|
|File name||Text |
|HFP0502_®_.PDF||Sony Service Company National Technical Services A Division of Sony Electronics Inc. Park Ridge, New Jersey 07656
Service Bulletin Hi-Fi Products
Subject: Setting Test Mode Symptom: (**)
Date: January 6, 1997
In early production units it is not possible to enter the test mode as outlined in the Service Manual.
A small PC board was added during the manufacturing process, this board is not documented in the service manual. There are two versions of this extra board. To set the test mode, capacitor C4 which is mounted on the small pc board must be connected to ground. Note the following procedure for each version of the small PC board:
1. PC board with P/N 0-439-257-01: Connect the + lead of C4 (reference silk screen on body of capacitor) to ground. 2. PC board with P/N 1-664-290-11: Connect the + lead which is located at the front panel side of C4 to ground. Set test mode as outlined in the Service Manual.
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