hi i am looking service manu for 4300 stereo amplifier this unit amp section work good but when preamp
connect unit make crakel noise
Are you certain it's not the preamp that is the source of the crackiling?
for email amplifier section is clear i used pre to test ,crackel are coming form morantaz 4300 pre any idea
please let me know
I have seen problems with the transistors in the tone amplifier circuits. Also, I have seen corrosion on the leads of the transistors; to solve this you need to remove them from the circuit, scrape off the corrosion, then resolder them.
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