 Posted: Sat Jan 14, 2006 12:36 am Post subject: |
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| It,s always a good idea to resolder the line driver transformer pins after output transistor replacement, I have been caught out on this one before. | |
| Posted: Wed Jan 11, 2006 12:36 am Post subject: Re: PHILIPS TV MODEL 28PT4523/05 |
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Hello, First off all it is important to replace the Output transistor by the same type. Second : You will have to check on the solder joints of the connector of the deflection coil (I mean the big coil around the tube ) It is also possible that the blue disc capicitor 1.5 nf 2000 Volts ( very close to the line output transistor ) has a crack and sometimes goes short circuit. I hope you can repair your tv now. Greetings Jeroen Hartman TV/ Video/ Audio engineer The Netherlands |
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| Posted: Tue Jan 10, 2006 10:39 pm Post subject: PHILIPS TV MODEL 28PT4523/05 |
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| Philips tv model 28pt4523/05, chassis MD1.2E ?
Line output transistor short circuit. Replaced and worked for 4 hours and went s/c again. Any idea what is causing this ??? No schematics need a helping hand ... Thanks in advance . jfk :  |
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