Dishfarmer |
Posted: Thu May 05, 2011 9:54 pm Post subject: Sampo KM-777 Monitor Main Board PWB-3177-4 |
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Hi Everyone, Looking for any ideas with a dead CRT Monitor as above, nil pwr to tri colour LED. Only life is a click from the smps transformer once a second. I have changed the PWM IC and checked the FET on the primary, checked the HOT and all the main caps on the +70V rail. Giving a VGA input signal nil effect either. Something is loading the main rails down or maybe the smps trasformer is shorted or the horz o/p transistor is still defective? Any ideas appreciated. Aar on. |
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