Question about Televison & Video
I have replaced PC123; IC MC44608P40;IRF630MFP;AND STV 8172A BUT PROBLEM STILL REMAINS
Posted by Anonymous on
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Posted on Jan 02, 2017
SOURCE: TV Will not fire up.
try this,hang the collector pin of the HOT then try to switch on check the voltage its 115v dc,and check also the oscillation drive at the base of HOT take your VOM at 10v ac,ther must be a flactuate at the pointer.if the two procedure are good.plyback is deffective.but if u dont have any measured voltage at the collector of HOT ur problem is in the power supply. mc44608 is use at all old model philips tv.email me for wat happend
Posted on Apr 08, 2008
SOURCE: Powersupply Faulty
Check for short circuit on your Powersupply. If you can isolate it, much better. check the voltage regulator if it supplies power to the system. better still check the regulator itself.
Posted on Jul 10, 2009
and associated circuits.
If 2SK2996 is blown, it may take out the PWM IC and some components
that goes with it.
Let me know what you find or needs further assistance.
Posted on Sep 23, 2012
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