Hi guys!
just came back after a while...
http://www.bcae1.com/temp/dwm1216cla...d02img287x.jpg - thanks Perry on this hi-res picture!
I'm repairing this driver board because the output transistors heat-up while rail to rail voltages drops to +-22Volts from +-74Volts. - blue run light lits...
If I removed this board the amp looks fine and railt to rail are +-74V.
Testing and measuring components on this driver board seems fine.
Could somebody tell me what's the problem of this board? I replaced the LM293 but still no luck. How about the two IC's at the input side? Voltages on this board were available.
thank you for having opportunity to talk to you guys...
just came back after a while...
http://www.bcae1.com/temp/dwm1216cla...d02img287x.jpg - thanks Perry on this hi-res picture!
I'm repairing this driver board because the output transistors heat-up while rail to rail voltages drops to +-22Volts from +-74Volts. - blue run light lits...
If I removed this board the amp looks fine and railt to rail are +-74V.
Testing and measuring components on this driver board seems fine.
Could somebody tell me what's the problem of this board? I replaced the LM293 but still no luck. How about the two IC's at the input side? Voltages on this board were available.
thank you for having opportunity to talk to you guys...
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