Join Date: Sep 2006
Location: Pleasant Hill, CA
Marantz 7200: strange distortions
My Marantz 7200 I use for a home cinema theater (it has nice surround sound processor) started to distort as if something is heavily clipping in all channels. I opened it on the bench, looked inside, but did not find any bad solder or something similar. When I connected a signal generator and a dummy load it worked fine. I kicked all boards by a screwdriver, no result.
I put it back and it worked fine for a while, then started to distort again suddenly.
What is strange, internal FM radio sounds nice.
I have no schematics, unfortunately. It has lot of small PCBs soldered vertically and fastened to the rear panel, so it is very hard to troubleshoot...
If I disappear suddenly, that means I finally created a time machine and pushed wrong button that brought me to Stalin's Russia. In any experiment any result is the result. Even if it is negative.