Goodmorning everyone ! I have a problem with a system x ion 280.2 audio amplifier! The amplifier turns on but no audio comes out in the speaker. I have measured all the mosfets and transistors present and I have no damaged devices but the thing I have seen is that I have no bias voltage on the mosfets! Do you have any scheme or advice for me?Sorry for my bad English Good job everyone
I have already replaced some components to try! With the oscilloscope I noticed that the signal arriving at the ne5532 is very low and distorted
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These amplifiers are a bit odd in the way they use the final op-amp. If you don't know their configuration, the F2-190 may help. Hopefully, someone will have the right service manual.
What is the DC voltage measured directly across pins 4 and 8 of the 5532s?
These amplifiers are a bit odd in the way they use the final op-amp. If you don't know their configuration, the F2-190 may help. Hopefully, someone will have the right service manual.
What is the DC voltage measured directly across pins 4 and 8 of the 5532s?
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Goodmorning everyone ! Finally it started again ! the problem is the muting transistor where the bias voltage for the mosfets is also taken !! Thank you very much for helping
now i will do some control tests but it seems to work
now i will do some control tests but it seems to work
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- Audio system x ion 280.2 no audio in speaker