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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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NAD amp repair
Hi all,
Anyone has a PDF schematic for NAD pre/main amp 7155 and main amp 2155? The problem with the ´7155 is the preamp section seems dead, the poweramp is all ok. No input is working so I would suspect some powersupply problem for the preamp. As for the '2155 the soft-clipping occours very early, according to its owner, and if memory serves me right, there are a couple of 8,2kOhms resistors gets open. But a schematic would be appreciated. Thanks! Regards The poweramp freak |
#2
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NAD amp repair
In article , powerampfreak wrote:
Hi all, Anyone has a PDF schematic for NAD pre/main amp 7155 and main amp 2155? The problem with the =B47155 is the preamp section seems dead, the poweramp is all ok. No input is working so I would suspect some powersupply problem for the preamp. As for the '2155 the soft-clipping occours very early, according to its owner, and if memory serves me right, there are a couple of 8,2kOhms resistors gets open. But a schematic would be appreciated. Thanks! Regards The poweramp freak Your email fails. I think I do have those devices. I'm not sure if I have any info. Keep nagging me, because I need to look that receiver which has a bad FM chip, and I was unable to find it. I wanted to contact NAD. I have several NAD pieces all the way up to their top line receivers I acquired on Ebay. I will look to see what manuals I have. greg |
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