kdammen

Thank you Xxerby for all this information. That will greatly help repair these. I have one where the power led isn't turning on and the power supply isn't turning on. I can manually turn on the power supply and it's outputting power. I've replaced all caps, resistor, and transistor. Not sure where to look next.

These are the ones I've used with success Qty Label UF Volt Polarity Part # 3 c38, c42, C1 4.7 50 BiPolar UDB1H4R7MPM 2 c56, C69 10 50 BiPolar UVP1H100MED 4 C19, C54, C80, cap By R40 Behind Large Caps 22 50 Polarized UPW1H220MDD1TD 3 C29, C30, C39 47 25 Polarized UPS1E470MDD1TD 4 C43, C44, C47, C48 100 25 Polarized UPS1V101MPD1TD 1 c18 330 16 Polarized UPS1V331MPD1TD 2 Large Caps 1000 80 Polarized UPJ1K102MHD 1 Resistor 10W820RJ SQP10AJB-820R 1 Transistor TIP31C TIP31C 1 U1 IRS2092S PWM (IRS2092STRPBF)

Check out page 2 of this thread. Someone else had the same question.

Here are two more.

@exscape I measured pin 13 of the IRS2092S chip to pin 3 of mosfet and I am getting 0.1 ohms. I am working on getting another one of these going. This one is showing no power after replacing the resistor, transistor, and 3 caps surrounding. I'm thinking I have either some bad diodes, resistors, or PWM. I plan to full recap and test more. I'm attaching a couple board images in case anyone needs more detailed views of this board.

I just want to report that I got my amp working after replacing the caps. Thanks ngen!

I have the exact same problem. I tried replacing the resistor, but no luck. My next plan is try the caps and transistor. Perhaps @ngen33r knows? Edit: I just pulled the transistor and it tested out good on my multimeter. I'm stumped.

I have a R-112SW that's not dead, but it creates a clicking sound and the output sound is terrible (almost like a blown woofer, it's not as I tested with another amp). Any idea what's the cause? My resistor does look hot as the covering is flaking off, but I don't see signs of heat damage around it like other photos in this tread.