djk Posted February 4, 2006 Share Posted February 4, 2006 http://manuals.harman.com/HK/service%20Manual/HK430%20sm.pdf http://manuals.harman.com/HK/service%20Manual/HK630%20sm.pdf http://manuals.harman.com/HK/service%20Manual/HK730%20sm.pdf http://manuals.harman.com/HK/service%20Manual/HK930%20sm.pdf Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 4, 2006 Share Posted February 4, 2006 djk, I must say you put this up just in time! I happen to be playing with a 930 on my bench now. I'm a little out of my arena on this one. The amplifier section works perfectly. The preamp section has a huge imbalance. I'm thinking right now that one channel has to much gain and the weak channel is operating normally. Craig Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 4, 2006 Share Posted February 4, 2006 Craig, Check out the selector switch carefully. I have a 630 here with an inbalance. If I wiggle the selector just right, it goes away. I don't know if that info will help you but, it can't hurt. djk,Thanks for the manuals BTW! Rick Quote Link to comment Share on other sites More sharing options...
DizRotus Posted February 5, 2006 Share Posted February 5, 2006 Thanks for sharing the resources. Quote Link to comment Share on other sites More sharing options...
NOSValves Posted February 5, 2006 Share Posted February 5, 2006 Craig, Check out the selector switch carefully. I have a 630 here with an inbalance. If I wiggle the selector just right, it goes away. I don't know if that info will help you but, it can't hurt. djk,Thanks for the manuals BTW! Rick Rick, I've messed with and cleaned every switch. I'm pretty sure the problem lies in the stronger channel since this channel reaches blistering output at only 9:00 on the volume control. Craig Quote Link to comment Share on other sites More sharing options...
3dzapper Posted February 5, 2006 Share Posted February 5, 2006 Yup! Quote Link to comment Share on other sites More sharing options...
Daddy Dee Posted July 13, 2006 Share Posted July 13, 2006 The whole family! Thanks DJK. Quote Link to comment Share on other sites More sharing options...
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