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Pioneer sa 9900
Pioneer sa 9900
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Old 27th March 2005, 07:10 PM   #1
David Robert is offline David Robert  United Kingdom
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Join Date: Aug 2004
Location: Leigh (Just outside Manchester)
Default Pioneer sa 9900

I have a pioneer sa9900 amp which has started making a faint rustling noise in the left channel - after a while the protection circuit trips. If I switch it off and wait a while it works okay, then the cycle repeats itself

Does anyone have any idea what this can be - I've got the service manual but don't know what the problem is?
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Old 15th April 2005, 07:52 AM   #2
chrisautosund is offline chrisautosund  United States
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Join Date: Apr 2005
Location: texas
noisy diff amp, probably 2sa725, replace them.
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