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Author Topic: Need help with Kortek monitor model KT-1903N  (Read 4319 times)
LT Games
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« on: September 17, 2010, 04:30:58 PM »
Hi all, i changed out all the "bad" caps; but the monitor still not power up. Any suggestion.

Regards,

NT
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jay
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if you cant afford to lose you cant afford to win
« Reply #1 on: September 17, 2010, 05:28:39 PM »
Sounds like a power problem.......

Have you checked (with a meter) to see if you are getting power where you think you should be getting power ?

Next I would go after the high voltage transistor.... these were the common cause of lost high voltage
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LT Games
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« Reply #2 on: September 17, 2010, 06:40:53 PM »
I now see only the thick red horizontal line at the center of the screen. Any suggestion.

Thanks,

LT Games
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jay
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« Reply #3 on: September 17, 2010, 07:26:02 PM »
Thats indicitive of a vertical output problem.
The 1970's fix to this was to hit the side of the TV.

It usually meant that you had a cold solder
Given that you just replaced your caps....

I don't want to sound insulting in anyway but when you replaced your caps you were concious of the +/-'s

Jay
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