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yakomos
Joined: 07 May 2006 Posts: 7
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Posted: Sun May 07, 2006 4:51 am Post subject: breakdown TV Philips 21PV330 |
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hello, veiled my problem the food of the TV ok I can introdure the cassette and to leave it, the led stby ignites and flickers when one acts with the telecomande but the led timer it flickers all the time I have well on step of image. Thank you to help me.
I do not explain VHV with the demage I see the impulse line on my transistor a short moment. I have to replace transformer VHV and also the IC TDA8842 left H+V etcc. I made it to eliminate the doubt makes some I believe that it is in securiter or then prtection child. which is odd it is that with the demarage the led timer cligote and after a certain time it remains to light. It is for its that I wonder whether it ya not a trick for standard of chassis (delta from Philips) or then there is a trick for withdraws the securiter in order to see or is located the probleme.voila thank you for your answer. |
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yakomos
Joined: 07 May 2006 Posts: 7
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Posted: Mon May 08, 2006 3:42 am Post subject: |
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Re hello, Veiled to seek more for me I have repair. I give you the solution its can help some one never know. 1) For the securiter one withdraws owes desouder the transistor7547 (PNP) or meter with the mass the COLECTEUR of the known as transistor. 2) At time all the securiter are OUT and the TV owes demarer (finally one will poura to see or treouve the problem) 3) If the TV demmare normally then the breakdown is very simple, to change office transistors 7547 and 7543 then to replace the zeners of 22 volts norlalement the breakdown is. In my case perso it was the diode zenzer6541 Veiled is to finish thank you still has you all to have read me. PS: I am a technician radio operator TV dout ........... A++ |
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