Recent content by Merlin Magic

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Hey Guys!!! Got a little problem with my BA-110. It burned a resistor (R212 220 Ohm 1/4W). Changed it, and that´s where it all started. I´ve changed a burned output transistor Q208, because it also burned (got the pair of output transistors but until I get it under control I won´t put the other...

A reaaaaaaaaaaaaaaaaaaaaaaaaaaaaaally bad solder on the Low Mid, Low Bass Low treble pots and Yes you´ve guessed it.... a bad capacitor. A 100V .03 M en the board... and also a bad diode on the PS. I really apreciate all the help guys.... If I can be of any help just let me know.

Thanks to all of you I got rid of the oscillation. Thanks guys!!!!

Thanks again, I´ll check that out. It actually makes more sense that way. Thanks.

I have not checked the frecuency of the second channel, but the first channel turned out to be just as you sugested, a floating input. The osciloscope is cheap, but it does it´s job. It is not cpu based.

Well I have both, a high frecuency pitch in the first channel and an oscilation about 60 Hz in the second channel. I have not thought of the input part... I´ll check it out and let you know. Thanks again

I have a small osciloscope... I think I can handle it with that.

You are a Godsent!!! Thank you...

I´m starting to believe there is a problem with the power supply. But, I´m kinda flying blind w/o schematics.

It has oscillation on the output.

Does anybody have the schematic of this amp by any chance??