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sansui qrx-9001

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    Problems with a Sansui QRX-9001

    I have a Sansui QRX-9001 that I modified and rebuilt a couple years back (including repining the 4-ch switch board) and it has been working beautifully since. Today I turned it on and it worked properly for about 5 or so seconds then the back two channels dropped out partially. When I switch...
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    Adding Ceramic Caps to the Quad IC’s on a Sansui QRX-9001

    Hi, I’m trying to figure out how many ceramic caps to add and where to add them for noise reduction in the 4-ch section on my Sansui QRX-9001. I’m not having a lot of luck here. Anyone know/willing to help walk me through it/and or have pictures with the ceramics in place?
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    Sansui QRX-9001 With a Problematic CD-4 Demodulator

    I have a problem with the CD-4 demodulator in my Sansui QRX-9001. It has been completely recapped and rebuilt (all transistors and diodes have been replaced). With all the work that has been done, I still have one issue with the demodulator. My left channels have no front-back separation, but...
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    Amplifier Problems With a Sansui QRX-9001

    Hello, I have a problem with the amps in my Sansui QRX-9001. The problem being they’re totally dead. Aside from the amps the entire rest of the receiver works great. I added pre outs from the preamp outputs, and have been using it with external amplifiers, and think it’s about time I got her...
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