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    Pioneer S-W700 Subwoofer

    I have been troubleshooting the Pioneer S-W700 sub woofer for sometime now off and on. I have replaced several components on the Power Mod. F100, board #AWZ5389 board. The board has some foil raised near the right channel output transistors. Foil completely off and copper trace exposed. I would...
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    Sansui 7070 Left and Right Output Issue

    I have a Sansui 7070 receiver that I originally purchased in 1976. Used it for about 10 years before putting it away in leu of a AV receiver. I recently brought it out of storage. It still works, but the right channel has low output. I replaced caps on the F2624 driver circuit board. When I...
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