Hip4080

[Miguel010192]

I have an amplifier that makes a noise without you connecting the rca, initially the mosfet and the hip4080 were burned, then they were replaced and I am left with that noise, I do not have an oscilloscope to make measurements, I was reading in some threads that replacing the irf3710 with the irf3710z the problem is corrected. someone help me to find the error

 

[Perry Babin]

The newer non-Z version of the 3710 can cause problems. The only way to know if they're a problem is to try the Z version.

That said, it's odd that they cause noise without being driven with signal.

What's the DC voltage on terminals 5, 6 and 7 of the 4080?

Did you buy the replacement parts from a reputable distributor (not amazon, not ebay)?

 

[Miguel010192]

La versión más nueva que no es Z del 3710 puede causar problemas. La única forma de saber si son un problema es probar la versión Z.

Dicho esto, es extraño que causen ruido sin ser conducidos con señal.

¿Cuál es el voltaje de CC en los terminales 5, 6 y 7 del 4080?

¿Compró las piezas de repuesto de un distribuidor acreditado (no amazon, no puedo hacer las mediciónes sin los mosfet montados?

 

[Mooly]

Please post in English (Rules). Your post has no content, it is just a translation of Perry's.

 

[Miguel010192]

can I make the measurements with the mosfets installed?

 

[Perry Babin]

Yes.