Questions & Answers for: NAD power pcb

power light turns red. The unit doesn't feel hot at all and the speakers are not having wiring problems. Any thought? I suggest rechecking the speaker wiring in case there is a small "whisker" of wire

Nad 752 When powering down, a loud thump is heard from the speakers, and not the usual quiet powerdown. Also noted when powering back up, memory fuctions seem to have lost their previous state. i ...

power transformer on pcb) If they are white do not change the fuse and get unit to good service center( it must be someone who knows what they doing!!!) If the caps are different color (black ,purple)

...power on (it is green for a few seconds), before the speaker relays ever get engaged. I found your earlier posts, checked the capacitors. One was open (c785), the others seemed ok. I replaced all of ...

...power supply PCB - mounted vertically on the main power supply PCB. (next to ribbon cable connector is a layout with voltages.) If the +/-37V are missing check (replace) C501 (0.1uF) on the small ...

...power button is on but it is impossible to turn it back on without unplugging it. NAD Technical Bulletin T743-H2005-06 describes the problem "Unit may shut down, shortly after turn on". Reason: There ...

...power supply PCB - mounted vertically on the main power supply PCB. (next to ribbon cable connector is a layout with voltages.) If the +/-37V are missing check (replace) C501 (0.1uF) on the small ...

...power in the speakers, like a fuse has gone brokend. I can here the musik but silent and it sounds like I´ve blow up the speakers. I can´t find something wrong in it and I´ve cecked the fuses. If I ...

...leds are always off check the pcb mounted fuses on the power supply board They look like resistors only they have 1 colored stripe. replace the open (resistance above 1 ohm) fuse and enjoy your

My NAD T750 will not power up unless I tilt it on its edge. Then all controls are working. Bad connections along the front PCB.