Author Topic: Philips t.v need HELP>> (Read 1468 times)

Afro_tech · « **on:** July 31, 2009, 02:41:25 PM »

hello sa lahat na matitinik sa t.v repair...

ano po kaya ang sira ng t.v ko..Philips 29 inch model:29PT463A/71R

Problem:NO POWER..NO STANDBY

Action taken:action taken:Replace ko yung transistor nya BU2508A.kasi shorted..
pag replace ko ng bago.umilaw yung standby light.pero na wala agad.

check ko muli yung transistor BU2908AF gamit ang tester akalain mo shorted nanaman..

saan kaya ang sira nito mga bro..ano kaya ang parts na sira bakit nasisira yung transistor..

thanks....

Philippine Electronics Forum · « **on:** July 31, 2009, 02:41:25 PM »

Woots29 · « **Reply #1 on:** July 31, 2009, 04:51:10 PM »

may supply po ba sa collector ng BU2508?

Philippine Electronics Forum · « **Reply #1 on:** July 31, 2009, 04:51:10 PM »

oldskul · « **Reply #2 on:** August 01, 2009, 09:25:06 PM »

sir Afro_tech,,,BU2508 ba? ilan ang pins nyan??mukha kasing bridge rectifier yan eh...
http://www.alldatasheet.com/view.jsp?Searchword=BU2508
check mo sa site na yan kung tama yung part # na binigay mo..

Philippine Electronics Forum · « **Reply #2 on:** August 01, 2009, 09:25:06 PM »

denzig · « **Reply #3 on:** August 12, 2009, 11:41:06 AM »

brod tignan mo muna ung deflection yoke mo kung hindi sunogkung ok bka fbt na yan pa check mo na rin.

Philippine Electronics Forum · « **Reply #3 on:** August 12, 2009, 11:41:06 AM »

Afro_tech · « **Reply #4 on:** August 12, 2009, 12:27:34 PM »

@ denzig..

bro ok nman yung yoke ko..may diagram kba nito?
kasi may mga sunog na parts sa may power supply nya..

ito po yung part # sa PCB mga zener diode po yan..di ko na mabasa ang value..

6524,6543,6595,6592,6524@6527..

@ ito capacitor 2554..

Philippine Electronics Forum · « **Reply #4 on:** August 12, 2009, 12:27:34 PM »

denzig · « **Reply #5 on:** August 13, 2009, 10:38:15 AM »

bro nka limutan kong itanong un bu2508 sa regulator ba nkalagay horizontal out ksi yan pro pde rin sa reg.ala akong diagram eh sorry.kla ko hor un bmigay.

kagore · « **Reply #6 on:** June 27, 2011, 05:25:48 PM »

help philips 14gx1525 lagi nagshort switching mosfet palit na me uc3842 driver and check ulit lahat nakaikot pyesa ganun pa rin...

Philippine Electronics Forum · « **Reply #6 on:** June 27, 2011, 05:25:48 PM »

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