SERVICE BULLETIN
Bulletin Part Number: 271721-B1
Product: Bose® Lifestyle® SA-2 Amplifier - 230-240V (EURO, ASIA PAC)
Subject: 230-240V SA-2 amps not turning on
Disposition: Perform this procedure on units manufactured before 3/26/07.
Symptom: No symptom or customer complaint of SA-2 amp turning on intermittently or not at all.
Reason: C11 could be over stressed and has failed.
Solution: Check the value of C11 on all units manufactured before 3/26/07. If C11 is a blue capacitor marked as 250V or a gray capacitor marked as 275V replace it with part number 306320-154A.
The date of manufacture is the four underlined numbers in the serial number. YDDD - 3/26/07 = 7085
Note: 306320-154A is
Arcontronic P/N R47N315000A1K (440VAC, 0.15uF, 10%, Film) or
Vishay P/N MKP1841415635K (400VAC, 0.15uF, 10%, Flim)
Suspect Capacitors
Date Issued: 04/05/07
FRACAS: 543
Bose Corporation; The Mountain, Framingham, Ma. 01701-9168
Service documentation available online at http://serviceops.bose.com
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