AV-27850, dead, repair vertical: LA 7832, 100 uf 35 volt cap,
Are you sure you changed the correct (boost) capacitor? I agree 100 uF at 35 volts is a typical boost cap value - but this sure seems like a boost cap problem. Could the B+ be too high?
Mark Z.
These do tend to run hot, and I wonder if the no-fins steel heat sink was adequate to start with. But having said that, check the vertical supply cap also. If the flyback capacitor doesn't have a good stiff supply to charge against, you won't get enough boost voltage for the IC to work efficiently. I recently had the same model bounce on me, replaced everything the second time around, even the caps that checked good, played it several days to make sure, crossed my fingers and shipped it. So far so good...
Yes, ditto to tiny heatsink (either steel or aluminum in other JVC models. Literally "blistering hot" running.
Cheers, Wizard
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