Question about Bose Wave Radio
60 Hz hum on old Bose Wave radio everytime power-up, but sometimes after 5 minutes the hum stops. have tried different power outlets. have tried using power supply noise filter. hum occurs even when playing from AUX input. suggestions please
Actually the problem was caused by a bad 470uf cap, that was used to filter the powersupply for all the analog amps. Replaced the cap the unit works like new.
Posted on Apr 06, 2008
This is caused by a faulty filter on the IC allowing main frequency effects to go to the speaker, not a user servicable repair, it needs to go back to the shop.
Posted on Mar 11, 2008
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Posted on Jan 02, 2017
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