Hi
I have a problem in my TBA 200B preamp but i m not sure if its a 990 opamp problem.
there's too much dc noise in one channel that makes the channel very noisy (crakles) but the amp works well...
I have schematics and i ve made dcv readings of the components around the two 990 opamps and there's a 0.4 DCv that i dont have in the channel working properly...in the other readings are around 35 mv...
I have a problem in my TBA 200B preamp but i m not sure if its a 990 opamp problem.
there's too much dc noise in one channel that makes the channel very noisy (crakles) but the amp works well...
I have schematics and i ve made dcv readings of the components around the two 990 opamps and there's a 0.4 DCv that i dont have in the channel working properly...in the other readings are around 35 mv...