Here I go again.. another Marantz but since I just cleared three Kenwoods off the bench, it's time again
This one has had someone in it who was a bit of a hack. Transistors are not OEM.. a few caps replaced and not well, speaker relay replaced at one time etc.. Plus the normal burned out lamps and one very cooked power switch even with the snubber. This follows how I normally do things.. inspect for obvious signs of issues and if nothing stands out, then take apart the power switch and clean it or replace it and replace the main filter caps. Then I'll apply some power in a limited form to see what happens. I can pretty much say every Marantz I've worked on so far, one or more main filter caps has been outright bad or leaky and half the power switches are cooked. I went ahead and scrubbed the selector switch, volume and balance pots. They get heavy use and tend to be in need of attention. I'm waiting on some more snubbers right now.. my last one got used on my KT-5500.
I went ahead and put in the new LEDs since I had them at the ready
This will be a fun one I think
This one has had someone in it who was a bit of a hack. Transistors are not OEM.. a few caps replaced and not well, speaker relay replaced at one time etc.. Plus the normal burned out lamps and one very cooked power switch even with the snubber. This follows how I normally do things.. inspect for obvious signs of issues and if nothing stands out, then take apart the power switch and clean it or replace it and replace the main filter caps. Then I'll apply some power in a limited form to see what happens. I can pretty much say every Marantz I've worked on so far, one or more main filter caps has been outright bad or leaky and half the power switches are cooked. I went ahead and scrubbed the selector switch, volume and balance pots. They get heavy use and tend to be in need of attention. I'm waiting on some more snubbers right now.. my last one got used on my KT-5500.
I went ahead and put in the new LEDs since I had them at the ready
This will be a fun one I think