acblunden2
Active member
I have been a total n00b until today. I have had like 10+ K7000 monitors waiting to be fixed for the past 1.5 years. First time I did a K7000 cap kit, I had a working chassis die on me. So I stayed away from the effort. "A ha" moment has been able to do a proper B+ reading. Once I was able to do that, Fromm's flowchart made all the sense in the world.
Chassis 1: Blowing fuse. HOT = shorted. D19-D22, good in circuit. Replaced HOT with proper thermal grease and mica insulator and she fired back up.
Chassis 2: Arching flyback. Replaced to find a big white blurry mess. Remote board and flyback adjustments did nothing. On a hunch, swapped remote boards and nice got picture. Bad remote board remained bad even after a solder reflow. New pots are on order to fix that remote board which I will save that repair for a later day.
Chassis 3: Same issue as Chassis 1. But upon firing her up, red was missing. Swapped Q201 and Q202 on the neckboard. The missing color followed the swap. Salvaged a transistor from what I have now designated as a parts board. Red came back. New transistors are on order.
Waiting for more parts for the other chassis but am happy and saving a ton of dough. Thanks for all you guys sharing your knowledge!
Chassis 1: Blowing fuse. HOT = shorted. D19-D22, good in circuit. Replaced HOT with proper thermal grease and mica insulator and she fired back up.
Chassis 2: Arching flyback. Replaced to find a big white blurry mess. Remote board and flyback adjustments did nothing. On a hunch, swapped remote boards and nice got picture. Bad remote board remained bad even after a solder reflow. New pots are on order to fix that remote board which I will save that repair for a later day.
Chassis 3: Same issue as Chassis 1. But upon firing her up, red was missing. Swapped Q201 and Q202 on the neckboard. The missing color followed the swap. Salvaged a transistor from what I have now designated as a parts board. Red came back. New transistors are on order.
Waiting for more parts for the other chassis but am happy and saving a ton of dough. Thanks for all you guys sharing your knowledge!
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