Help with Sony SQR-8750, SQ boards repair?


Help Support QuadraphonicQuad:


New member
Aug 30, 2022
Atlanta GA
This was one of the receivers I purchased at an estate sale and, since I'm having so much trouble with my Sansui QRX-9001 these days, I really need a backup.

Although all the amps work just fine when playing through the discrete mode, albums are another issue. Different channels cut out in the SQ and "R-MTX" modes. I've done some investigating and apparently the SQ boards, the most advanced for the time, have been an issue with these. I'm guessing that's the problem. :cry:

Does anyone know a repair person/shop that might be able to look at this one? Not sure who deals with SQ boards anymore. :confused: I doubt a local shop near me would have a clue. I'll ship it anywhere in the USA if needed. This one is too beautiful to toss aside.

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Any idea on replacing the tuner Dial lights? I also have a Qrx 9001, 6001, and Fisher 504, and Sony 8750.
I can't find the old style bulbs that fit the grommets? Any ideas ??