Is there anything I can check before I order fets. Just wondering I'm trying to save some shipping on parts.
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.
I think they are 4710s I will order more than I need so I can match. I will check this resistor.
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. Rdiaz c38 is very yellowed assuming heat so I will replace both.
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?
Does anyone know what u1 on the hip4080 daughter board is. I screwed up soldering fets and discharged rail caps through to the gate.
Please don't post in a repair thread that was started by someone else unless you are trying to help them.
Start a new thread if you need help with a repair of your own.
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Start a new thread if you need help with a repair of your own.
If you think this thread is relevant, include a link to it in the original post of your new thread.