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18th January 2006, 08:50 PM
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#1 |
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diyAudio Member
Join Date: Sep 2005
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Ele. diagram of Pioneer amp A-91D, help me!!!
Hi, I bought an used integrate amplifier PIONEER A-91D in a perfect cosmetic condition but when I listen it after half hour I can hear that the sound change and it isn't more clean and powerfull as before!
I think that one problem is the capacitors because it has a lot years and doesn't work since 3 years. Now a Pioneer service (in Italy) cannot find the electrical digram and so he cannot fix up it (repair) so I'd like ask to all if possible find the electrical diagram of this amp. Can you find it? thanks so much. William. 
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12th March 2011, 03:00 AM
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#2 |
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diyAudio Member
Join Date: Nov 2010
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A-91D servicing.
Now, many user manual & service manuals are available.
A-91D see below for both PIONEER A-91D Service Manual free download, schematics, eeprom, repair info for electronics |
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12th March 2011, 04:29 AM
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#3 | |
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diyAudio Member
Join Date: May 2008
Location: Albany , NY (smallbany)
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Quote:
 . I found my Nikko alpha 220/230 schema quick!!  OS
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