Hi,
I need some big help here. I was given a Hafler DH-200 for my personal use. I decided to check the DC offset before I hooked my speakers. I am glad that I did. The left channel showed 78mV and the right channel -12.5V
. I opened the amplifier and started to poke around. So far no success. Actually I am very puzzled, whereever I measure on the bad channel it shows around -22V. I have no idea what is going on here.
I did some measurement transistor-by-transistor on both good and bad channel. Thought this would help me find problem by comparing them... I am even more confused. I have tabulated the result for experts to look at. I know this is a lot of data points to look at but I don't know what to present so I have presented all of the data I took. I would really appreciate any help on this. I would really like this amp to work and have it just for pure stereo listening.
Please help....
I need some big help here. I was given a Hafler DH-200 for my personal use. I decided to check the DC offset before I hooked my speakers. I am glad that I did. The left channel showed 78mV and the right channel -12.5V

I did some measurement transistor-by-transistor on both good and bad channel. Thought this would help me find problem by comparing them... I am even more confused. I have tabulated the result for experts to look at. I know this is a lot of data points to look at but I don't know what to present so I have presented all of the data I took. I would really appreciate any help on this. I would really like this amp to work and have it just for pure stereo listening.
Please help....