All new to this. Trying to repair my Pioneer Sx1010 but after changing many caps and transistors still burns R11 10 ohm resistor. When checking the power supply circuit board there was a much larger resistor which a repair shop had put in. Whilst checking other things I replaced it with the correct one as the schematic and a faulty shorted transistor.
Now when I turn on it all lights up as it should but does not pass the output switching.
When checking the power output on the power supply circuit, on which I have changed some resistors and caps, 14 reads +2.2. 15 reads -10.3 and 13 reads +0.8 9.10,11, and 8 are correct. On the power supply assembly 15 and 16 are correct. Atatched diagram. Any help much appreciated.
Now when I turn on it all lights up as it should but does not pass the output switching.
When checking the power output on the power supply circuit, on which I have changed some resistors and caps, 14 reads +2.2. 15 reads -10.3 and 13 reads +0.8 9.10,11, and 8 are correct. On the power supply assembly 15 and 16 are correct. Atatched diagram. Any help much appreciated.
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Try checking voltages across resistors on power board while on, to see if you have negative voltage on one side and positive on the other (open resistor). Also, your most out-of-whack voltage, I would float that line and measure it to ground to see if you have low resistance to ground, indicating a short. But in my experience, having multiple wrong voltages in a power supply indicates leaky transistors, open caps, or open resistors in the power supply. I am assuming you have observed correct polarity with capacitors, etc, on what you've replaced. You mentioned being new to this.
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