philips model 21PT3882/71R pa help mga master

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philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 8:13 am

philips model 21PT3882/71R ang model mga master. ang bproblem po mga master ay nag bi blink xa ng 7 times before mag on ung tv. and total failure ata yun master correct me if im wrong pacnxa na po hehe. ito po ang pic niya kung mag on na

half lang po ang nakikita at may mga horizontal lines.

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 11:43 am

isolate mu muna sis..

mukhang out of sync..
suyod sa bandang vert side..
check small ecaps & resist..
sali din ang yoke..

pgwla ka pa rinng mhanap talon ka sa hor. sect..
ceramic hv caps & fbt
pag wla pa rin.. jungle ka na..
mostly sa philips open resist inductor

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 2:10 pm

nko master, pinalitan ko ng mga ecaps na nkapaligig sa vertical kc may nakita akong isang lumobo, isang medyo na de form, isang open na ecap. yun pinalitan ko nlang lahat, at may isang umosok master pagka voltage check ko, nag kapalit cguro yung test probe ko. hmm ang problema ko ngayon wala ng picture hahay nkapatay ata ako ng tv master.

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 3:03 pm


double check mu ulit. bka ecaps ang umusok. na reverse ang ploarity o di kya fusible resistor.. try mu munang i fixed. pgwalang pinagbago.. direct sub ka ng vert. / tda9302h

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 3:34 pm

parang ecaps nga po. ang stat po ng unit ngayon ay no blink ng led indicator nya, chineck ko sa vertical unit ung mga fusible kaso mga ok nman po. hindi po ba to sa psu?

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 3:45 pm

master bakit ang tagal mawala ng power na nasa loob ng main ecaps? knina ng may pic and sound pa pa to di nman matagal mag discharge. posible kayang may problema sa may psu? dahil sa pag usok knina ng ecaps?

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 4:10 pm


posible yan.. lalot kng nageestored tlga ang main cap. pero kng nadidicharge yan ng kusa focus secondary lalot ang fusible resist at vert. driver ic. kasi systematize ang ganyang modelo trip-off ang unit bat di gumagana ng maayos ang section na yan

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 4:24 pm

pag ene on ko ang awitch master, parang may sounds na "bong" sa picture tube pero mahina lang, kagaya ng pag nag oon tayo ng tv kaso wala lang sounds and picture na nakikita. so focus muna ako master sa primay?

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 5:00 pm


ah my horzontal oscillation ka nyan... nghohold down nga lang (power protect).. check mu ang heater kng umiilaw ba saglit o much better tutukan mu ng tester ang g2 (screen) ng mkasiguro ka...
pg meron. go vert section.. double check ulit

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 5:30 pm

master wala po akong nakitang ilaw sa heater. pro may nakita po akong umiilaw na pyesa heheh (sana ito na yun) kaso nbasag po ung pyesa hindi ko na alam ang value, ang ..... ko po hahaytz, pwede po bang palitan mo na ito ng ordinary diode just like D1400 ata yun hehe

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Re: philips model 21PT3882/71R pa help mga master

Post by baddypepito on Mon Sep 10, 2012 6:01 pm

sa anong section ba yong may nasusunog na pyesa?

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:13 pm

vertical po

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 6:15 pm

anung exact componnt placement yan..? mostly sa Diode ng philips start sa 6xxx ang mga yan.. like 6460. tignan nyu nlng ang nkaprint sa board.. para masundan ka namin

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:17 pm

yung diode po ay makikita at the back of the fly back. the one end point po ng diode ay naka konekta sa terminal 4 ng fly bck and yung isang end po ay papuntang ecap ng vertical section po master

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:18 pm

yung 6402 po master

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Re: philips model 21PT3882/71R pa help mga master

Post by baddypepito on Mon Sep 10, 2012 6:20 pm

baka sira na ang ic kaya nasusunog na yong diode.. try mong palitan yong vertical ic.

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:25 pm

hmm hindi po ba ito posibleng dahilan ng pag usok ng ecap na konekted sa one end of this diode?

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 6:29 pm

^ agreed..
@bjohn rectifier diode yan ng vert. supply. bunot ka nlng sa mga sinalvage na tv board. 1A-2A diode pwde na.

for the map. DL mu ito
http://aelexian.4rumer.com/t615-philips-tv-chassis-l92a
para mas masundan mu


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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:35 pm

hmm hehe medyo ganyan nga yung unit master na try ko naring ma edit para maturo ko kung saan banda yun, kaso hindi ako makapasok sa photobucket... update ako ulit master e ttry ko muna to kung mag hapy new year ba dito hehe (cross finger)

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 6:37 pm

mas maganda ts. ganito nlng gawin mu...
float/tanggalin mu ang vert. ic..
then check mu ang diode 6402 kng buo pa ba.
then power up... aware ka na rin na still mgsashotdown ang unit mu kasi di yan gagana pgmy problema sa vert sect. ur objective is kng my uusok pa ba?

then direct sub ka na ng working vert ic tda9302h...

kng wlang pamalit.. pngreplacement mu ang STV9302, LA78040, AN5522, TDA9309, TDA8172

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:39 pm

nako nag didischarge na nga yung main ecaps master, medyo nag paki narin ng sign kaso nmatay ulit. grrr kainis hehe

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:41 pm

wala na nmang usok master, sa ecaps lang cguro yun kanina

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Re: philips model 21PT3882/71R pa help mga master

Post by ultrasonic™ on Mon Sep 10, 2012 6:42 pm

mukhang nangangamoy vert drive nga yan sis lol!

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:49 pm

yung vertiacal ic po ba master? ma tetest nman po yun diba master yung vertcal ic with data sheet?

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Re: philips model 21PT3882/71R pa help mga master

Post by bjohn7908 on Mon Sep 10, 2012 6:53 pm

master may ilaw narin po pla at the back of the picture tube.

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Re: philips model 21PT3882/71R pa help mga master

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