K7000 25” what do you think!

jjhudgins

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Been awhile since I wasn't sure what to look at. Not sure if I've ever came across this before.

Only new caps have been installed
image.jpg
 
Man.....when a guy like you gets a problem like this, my first thought is equipment. What's the voltage on the battery in that tpg?
 
It's on DC plug

Originally found H Hold pot broken. Replaced and got this. No telling how long it ran with the pot broken before I got it.
 
I know you've been doing this a while but make sure you've reflowed all of the problem areas, particularly the large resistors. You'll find that you often have to desolder and sand the leads to get solder to stick properly. Check the diodes in the sync circuit D1,D2,D3, and Q5,Q6,Q7, and swap IC2 (LA7823).
 
I know you've been doing this a while but make sure you've reflowed all of the problem areas, particularly the large resistors. You'll find that you often have to desolder and sand the leads to get solder to stick properly. Check the diodes in the sync circuit D1,D2,D3, and Q5,Q6,Q7, and swap IC2 (LA7823).
finally someone else understands. I agree with the IC2 hail mary.
 
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