Bose Companion 3 Series II Service Manual - Page 36

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Also for Bose Companion 3 Series II: Owner's Manual (40 pages), Owner's Manual (40 pages), Owner's Manual (22 pages), Owner's Manual (10 pages), Owner's Manual (20 pages), Owner's Manual (26 pages), Quick Setup Manual (2 pages), Quick Setup Manual (2 pages), Detailed Assembly Instructions (2 pages), Installation Manual (20 pages), Specifications (6 pages), Brochure & Specs (4 pages), Owner's Manual (19 pages), Service Manual (16 pages)

Bose Companion 3 Series II Service Manual
SERVICE BULLETIN
Bulletin Part Number: 271885-B4
Product: Companion
Subject: Poor reliability on vendor part
Disposition: On all units that come in for repair, replace C7 with a Chemi-Con capacitor
Symptom: No Audio, Dead Unit or No Symptom
Reason: The capacitor made by Aishi is made using a low quality foil and poor quality etching
which is critical to the performance of an aluminum electrolytic capacitor. The
capacitor made by United Chemi-Con (UCC) is more dense and has more uniform
layering which makes the UCC capacitor more reliable.
Solution: All units that come in for repair, replace C7 using the part number listed in the table
below. For assembly/disassembly procedures, please refer to Service Manual
271885-SM (Companion
(Companion
Variant
Euro/Japan
Ref Des
C7
FINS: 2784
Date: 11/07
3 Multimedia Speaker System
®
3 Series II Multimedia Speaker System).
®
US
33000 µF, EL, AL, 25V, 4T
39000 µF, EL, AL, 25V
Bose Corporation; The Mountain, Framingham, Ma. 01701-9168
Service documentation available online at http://serviceops.bose.com
3 Multimedia Speaker System) or 297700-SM
®
Description
Part Number
260693-3331E
260693-3931E
Good Part
Bad Part
United
Aishi
Chemi-Con