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Old 03-08-2021, 02:13 AM
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YamahaFreak YamahaFreak is offline
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Join Date: Dec 2005
Location: TOO sunny Florida, USA
Posts: 580
Quote:
Originally Posted by zeno View Post
Every AKB problem I have seen ( many) was a weak CRT. On
older sets this caused blinking that slows with warm up. When it
does its obvious the CRT is weak. It did not cause shutdown.
One thing may be a H-K short. If it runs a while try lightly tapping the
CRT neck & see if it craps out. This was on older sets.

The other thing is the power supply. Not sure what yours has but the
wide screen ( 30" & 34" ) sets had 2 IC's that constantly go. They caused
all kinds of problems related to dead set, int start, shut down, hard start.
More on that if needed. I had one & got sick of changing them
every year. Other than that they were probably the BEST CRT TV ever
made.

73 Zeno
LFOD !
I do know it's not a weak CRT, as I have a KV-27S25 in the back waiting for a tube swap that exhibits those exact symptoms. (Flashing for a while before finally coming up, and seriously out of whack colors and convergence on the CRT) The 36" one looked perfect before it decided to start wigging out. I have heard of the MCZ chips on the power supplies dying...I suppose that could be the issue, though I hope not, as I'm garbage at soldering those large ICs. I really wish they'd put them in sockets!! I have a 32-inch flat screen Trinitron that needs one of those chips. (Some models have a pair of these ICs)
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