There is a capacitor on the edge of the PCB, between the speaker outputs and RCA jacks. Directly in front of it is a wire wound resistor. It should read 10 ohms or less. Make sure it's within tolerance. If not, order one.
Make sure you order a matched lot of MOSFETs for the entire output section. If you pulled out irfz3710s, order irf3710Z replacements. If not post the original part number.
That's all I can think of.
Make sure you order a matched lot of MOSFETs for the entire output section. If you pulled out irfz3710s, order irf3710Z replacements. If not post the original part number.
That's all I can think of.
Sorry for the late response, check C38 and C39 next to sg3525 make sure they aren’t cracked for some reason this caps can make noise on the toroid. I think c38 is .001uf and c39 is .01uf. If you’re replacing the output mosfets I recommend you to change the output drivers ICs as well.
Matthew it appears to be a 4.7ohm. They are fb4710.
That should be fine. Order the original FETs.
Riaz irfb4610 mosfets. Do you know what driver ic to use? You recommended replace.
When a 4080 is used it is recommended to replace it. Your amplifier appears to have a custom PCB that eliminates the 4080. What was the part number for Q20?
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