HFP0451_©_.PDF part of Sony (Bulletin) MDS-501 HFP0451_©_.PDF, Confidential Service bulletin hi-Fi product - Symptom: The original optical device KMS-140B, (Ref. #21) P/N 8-583-003-21, has been replaced by the KMS-140C (P/N 8-583-005-11). text manual preview

Text preview for : HFP0451_©_.PDF part of Sony (Bulletin) MDS-501 Confidential Service bulletin hi-Fi product - Symptom: The original optical device KMS-140B, (Ref. #21) P/N 8-583-003-21, has been replaced by the KMS-140C (P/N 8-583-005-11).

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Hi-Fi Products

CSA-13

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

Model:

MDS-501

No.

451

Subject: RF/Servo Board Procedure when replacing Optical Device Symptom: (****)

Date: November 10, 1995

The original optical device KMS-140B, (Ref. #21) P/N 8-583-003-21, has been replaced by the KMS-140C (P/N 8-583-005-11). After replacing the optical device, you may find that the unit will play CD discs but not MO discs. Proper adjustment also may not be possible after replacing the optics.

Solution:

Perform the following procedure on the conductor side of the RF/SERVO Board: · · Cut the pattern at the location shown below. Remove the resist on the board at the spots indicated, and bridge the two points using a thin wire.

· ·

Remove the resist at the indicated spot. Solder the positive lead of a 10uf 35V Tantalum Capacitor (P/N 1-131-353-00) to the clean trace (see diagram below). Solder the negative lead to either C287 or C254. Verify that the height of the capacitor does not exceed 8mm (0.31 in.).

Reference: Sony Europe Ref. # AU02895
PRINTED ON RECYCLED PAPER

PRINTED IN USA

Filename: HFP0451.SB Directory: J:\SBDOC\NOV95 Template: C:\WINWORD\TEMPLATE\S_BULL.DOT Title: Subject: Author: Hoyt Wing Lee Keywords: Comments: Creation Date: 11/10/95 10:08 AM Revision Number: 2 Last Saved On: 11/10/95 10:08 AM Last Saved By: Hoyt Wing Lee Total Editing Time: 0 Minutes Last Printed On: 04/01/96 10:18 AM As of Last Complete Printing Number of Pages: 1 Number of Words: 200 (approx.) Number of Characters: 1,142 (approx.)