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magnavox tv model PR1312 C121

June 6 2007 at 11:18 PM
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  (Login nhoy_mags)

the horizontal output keep shorted..everytime i changed it with new one..it keeps shorted..always shorted.

i tried to hang the horizontal yoke...the unit run normal..i checked the deflection coil...good,no any indication of burned.

any idea??

 
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danyk87
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Re: magnavox tv model PR1312 C121

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June 7 2007, 3:41 AM 

in case of the HOT (Horiz. output tranzistor) keep burning, it is usualy some electrolyte in HOT-base drive circuit (high ESR/low capacity).

Other common problem is Flyback transformer breakdown.

 
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suspected flyback

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June 7 2007, 5:47 AM 

thanks for the reply sir...i suspect flyback is bad but i doubt because it runs normal everytime i hang the horizontal yoke..but i going to try your suggestions..thanks again

BR

 
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