This amp came in with a blown ps. I replaced the emitter follower pairs and have good drive on all banks. After installing the fets i powered it up and something popped but I can't figure out what it was and now when I apply power the amp turns on without the remote connected and the fets on one of the banks is heating up. When i pull the fets out of that bank the amp powers up fine and the voltages and drive signal on that bank are normal.
Do all of the FETs check to be OK?
Did you check the drive with a loading capacitor on all banks?
Did you check the drive with a loading capacitor on all banks?
All of the fets are new.
No i didn't use loading capacitors. Is there a section in the guide on this?
No i didn't use loading capacitors. Is there a section in the guide on this?
Tech tips 9, item #23.
I'd be more concerned with the drive at this point. Turning on without remote is likely a shorted transistor in the remote circuit if the supply voltages on the driver IC are good.
I'd be more concerned with the drive at this point. Turning on without remote is likely a shorted transistor in the remote circuit if the supply voltages on the driver IC are good.
Ok i got the drive issue figured out. It was a shorted transformer. Now I just need to figure out why its turning on without the remote hooked up.
How do you define 'turning on'? Without the driver board, there is nothing to drive the FETs so there is no power.