Well, as a matter of fact, I've worked on semiconductor processing equipment for decades. I was expected to be able to fix darn near anything, at least to the board exchange level with schematic, knowledge of how it was supposed to work a meter and scope.
What's the big deal? It's just an amplifier.
I know I simplified things, but after all, if you are dealing with a professional analogue tech who is familiar with amps, preamps and can align an FM tuner or use a tube tester (for vets only) I don't really see the problem.
Is how this stuff works a mystery? Do you need to be admitted to some cults inner circle? Is fixing stuff Masonic or Religious?
Nope, it's just electronics.
Sound technique and reasoning will get you thru many fixes with no special knowledge. Maybe not even a third, but you can really fix stuff without resort to dead chickens or tea leaves.
Back to the OP. See where he writes::
'I can get the right channel to come on if I tinker around with the amp by switching source inputs form CD to Video and so on.'
I don't know? Cold Soldier? Bad Switch? Bad Switch logic if it's logic or relay driven switches?
Point is, this is not voodoo or rocket science. It all works the same way. Same principles, same parts (mostly not proprietary) and a volts a volt.
Granted, some techs are better than others. I, personally, was only OK at semiconductor equipments electronics but very good at mechanics and troubleshooting / reasoning. A good tech is certainly worth knowing and cultivating. It's a gift.
What's the big deal? It's just an amplifier.
I know I simplified things, but after all, if you are dealing with a professional analogue tech who is familiar with amps, preamps and can align an FM tuner or use a tube tester (for vets only) I don't really see the problem.
Is how this stuff works a mystery? Do you need to be admitted to some cults inner circle? Is fixing stuff Masonic or Religious?
Nope, it's just electronics.
Sound technique and reasoning will get you thru many fixes with no special knowledge. Maybe not even a third, but you can really fix stuff without resort to dead chickens or tea leaves.
Back to the OP. See where he writes::
'I can get the right channel to come on if I tinker around with the amp by switching source inputs form CD to Video and so on.'
I don't know? Cold Soldier? Bad Switch? Bad Switch logic if it's logic or relay driven switches?
Point is, this is not voodoo or rocket science. It all works the same way. Same principles, same parts (mostly not proprietary) and a volts a volt.
Granted, some techs are better than others. I, personally, was only OK at semiconductor equipments electronics but very good at mechanics and troubleshooting / reasoning. A good tech is certainly worth knowing and cultivating. It's a gift.