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  1. AndyCares

    Pioneer SX-3700 Relay does not Engage when Am or FM is Engaged at Power On

    Hoping someone can lend some advice. Picked up an SX-3700. When either AM or FM is engaged during power on, the relay does not turn over. If I switch the input to either of the remaining (AUX/Phono), the relay engages and stays engaged when switching back to FM or AM. One more detail: relay...
  2. STUKINDA70S

    Pioneer SX 737

    I am having a service problem with a Pioneer SX 737. I am fixing this for a friend. The unit goes in to protection when the volume is at 9-10 oclock, This occurs weather there a source going through it or not. When the unit goes into protection, there is no DC at the emitter resistors. I have...
  3. S

    Pioneer SA7800 Transistors Shorting of one side channel with two resistors burn out

    Dear Sir A few Months Before I imported Stereo Amplifier Pioneer SA7800, When I Started Using It, Its Suddenly Got Burn Something Inside and Stop Working, While I Open It to TroubleShoot I found two Transistor Got Short and two resistors got Burn Out, I Replaced Two Resistors and Powered them on...
  4. TinaTurner

    Pioneer SX-939 Revamp

    Hello, I recently obtained this SX-939 in really nice cosmetic condition. The only problem that I noticed was that it would drop FM signal after about 10 seconds of powering up and then remain off. All other inputs seem to be working fine. After cracking it open to take a look I noticed that...
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