Hello, hope I'm in the right place to post a problem with my NAD T762. Hopefully someone can help point me in the right direction.
It used to work real well, but started acting up. It would turn ON and then shut OFF (or go into protection) after several minutes of operation. I found the manual and schematics, however any assistance from any of you that may have experience with this amp would be greatly appreciated.
A quick visual check shows signs of electrolytic leaking on part of the main board, as well as this gummy yellowish glue that I understand turns conductive after several years. I took a quick check on the supply board and measured ±67VDC or thereabouts. Any ideas where I should begin?
Thanks for any ideas and direction. 🙂
It used to work real well, but started acting up. It would turn ON and then shut OFF (or go into protection) after several minutes of operation. I found the manual and schematics, however any assistance from any of you that may have experience with this amp would be greatly appreciated.
A quick visual check shows signs of electrolytic leaking on part of the main board, as well as this gummy yellowish glue that I understand turns conductive after several years. I took a quick check on the supply board and measured ±67VDC or thereabouts. Any ideas where I should begin?
Thanks for any ideas and direction. 🙂
No idea of that model's particular problems but the synthetic rubber glue doesn't necessarily become conductive and from a chemist's viewpoint, it would have to break down to a dark brown -black carbonised state before that was a serious problem in a power amplifier.
If that's genuine leaked electrolyte from the big capacitors though, it really is a big problem. They will need replacement and that means before you power up again. Don't skimp on quality - use a decent brand and grade that fits in the location and is suited or designated for audio power amplifiers.
If that's genuine leaked electrolyte from the big capacitors though, it really is a big problem. They will need replacement and that means before you power up again. Don't skimp on quality - use a decent brand and grade that fits in the location and is suited or designated for audio power amplifiers.