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monitor no dispaly

 
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cappanie
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PostPosted: Wed Jun 21, 2006 2:55 pm    Post subject: monitor no dispaly Reply with quote

monitor crt 17 inch samtron 56e, no display, power led blink steady.checked if vga card faulty,found ok - swapped with another monitor.need help whats wrong with samtron

thanks,
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PostPosted: Wed Jun 21, 2006 6:07 pm    Post subject: Reply with quote

Are you familiar with repairing powersupplies? what test equipment do you have?
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cappanie
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PostPosted: Fri Jun 23, 2006 5:05 pm    Post subject: Reply with quote

i a bit familiar, not so pro. please guide me
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PostPosted: Sat Jun 24, 2006 12:29 am    Post subject: Reply with quote

First test the Horizontal output Transistor for shorts.
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cappanie
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PostPosted: Sat Jun 24, 2006 12:00 pm    Post subject: Reply with quote

ok, the location is at the crt correct?
sorry,to ask, i just want to learn
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PostPosted: Sat Jun 24, 2006 8:18 pm    Post subject: Reply with quote

The horizontal Output Transistor is on the main board, mounted near the Line Transformer. It is mounted to a large heatsink. Test it for shorts. It could have an internal diode and internal resistors so be aware of this while testing. It's datasheet should be available online.
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cappanie
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PostPosted: Wed Jun 28, 2006 4:45 pm    Post subject: Reply with quote

Thanks for help i appreciate, i will let you know if anything wrong later
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vdngoc
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PostPosted: Tue May 13, 2008 3:17 am    Post subject: Reply with quote

you should check High tension. i think capacitor in High tension was fail. Sad [img][/img]
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