Philips 20PT2882/71R (No Power)
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Oscar
Electro
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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Philips 20PT2882/71R (No Power)
mga master patulong po ulit, meron po siyang B+ 100V. pag-press ng channel button iilaw lang saglit ang puwet ng tube. tapos power down na agad. nagbiblink lang ang led. sinukatan ko ang B+ niya simula sa standby at hanggang sa pagpower ng power down na hindi naman nagbabago.
sanay matulungan niyo ko.
sanay matulungan niyo ko.
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
sira siguro ang flybak niyan jeff. nakasubok nako ng ganyan.
pwede sad vertical ic
Oscar- C Battery
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Join date : 2010-09-22
Re: Philips 20PT2882/71R (No Power)
pwede din defective system ic
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Hertz- Admin
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Re: Philips 20PT2882/71R (No Power)
salamat po sa mga nagrereply
@kosang oscar nasubukan ko na din magpalit ng flybak na kadalasan kong ginagawa pag ganito ang trouble pero wa epek.
@master hertz papano ko po malalaman kong sira po itong system ic ?
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
@electro sori dugay ko nakabalik
always lng jud timan-e sa in-ani nga mga chassis
SOP jud ni xa always sa philips
check first the dual filter caps.. 2pcs. 47uf/160V mgkatabi yan, labi na kng naa ky nabasa nga tamang B+ sa emng tester
pag yan pumalya by cause of leaking or open caps.
di tutuloy ang oscillation mu..
sakit yan ng philips lalo na sa mga ganitong modelo...
wag diskitahan agad ito through sa physical appearance nya..
gamitin ang ohmmeter...
check also kng wala ka bang reverse DC resistance sa secondary out mu... pag yan meron protect din ang set mu..
wag ismulin ang defective vert. ic TDA9302H can cause of power protection..
common sakit yan ng Philips...
check agad the vert. dual supply bago magpalit ha
kong presence palit agad ng vert. drive...
aware lagi kng meron bang X-protect ang unit..
condemn nyu muna....o di kaya suyurin nyu na ang C board... mostly my change value resist..
laruin ang Focus Pot at screen.. dahil pagyan hindi pantay power down ka pa rin. maglagay ng marka kong hindi kabisado... bago mag-adjust
always lng jud timan-e sa in-ani nga mga chassis
SOP jud ni xa always sa philips
check first the dual filter caps.. 2pcs. 47uf/160V mgkatabi yan, labi na kng naa ky nabasa nga tamang B+ sa emng tester
pag yan pumalya by cause of leaking or open caps.
di tutuloy ang oscillation mu..
sakit yan ng philips lalo na sa mga ganitong modelo...
wag diskitahan agad ito through sa physical appearance nya..
gamitin ang ohmmeter...
check also kng wala ka bang reverse DC resistance sa secondary out mu... pag yan meron protect din ang set mu..
wag ismulin ang defective vert. ic TDA9302H can cause of power protection..
common sakit yan ng Philips...
check agad the vert. dual supply bago magpalit ha
kong presence palit agad ng vert. drive...
aware lagi kng meron bang X-protect ang unit..
condemn nyu muna....o di kaya suyurin nyu na ang C board... mostly my change value resist..
laruin ang Focus Pot at screen.. dahil pagyan hindi pantay power down ka pa rin. maglagay ng marka kong hindi kabisado... bago mag-adjust
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ultrasonic™- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
salamat sa advice master ultrasonic™ subukan ko po ulit i check
update na lang ko sunod
OT: salamat po master ultrasonic™
nalipay mi pag-ayo nga nakabalik naka.
update na lang ko sunod
OT: salamat po master ultrasonic™
nalipay mi pag-ayo nga nakabalik naka.
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
mga master nasubukan ko na pong macheck iyong mga payo niyo. pansin ko po na bumabagsak pala ng kunti ang B+ niya at nagpapatay sindi ang LED. napalitan ko na ng bago ang dalawang malalaking capacitor 47/160, ngunit bagsak pa rin
ano nga po pala ang X-protect ?
sensiya na po hindi ko po alam kong saan yan ?
ano nga po pala ang X-protect ?
sensiya na po hindi ko po alam kong saan yan ?
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
X-Protect baka X-ray Protection yan
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Hertz- Admin
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Re: Philips 20PT2882/71R (No Power)
para saan yan master ?
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
x-ray protect is one of the televisions protection circuit to sense the excess voltage or current to stop and shutdown the hor osc from continuous oscillation to prevent from excessive emission of high voltage on the CRT.it is being located on ps section or some where that monitor the excess voltage or current supply by the regulator
History of X-ray Protect
History of X-ray Protect
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PIEZO- Admin
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Re: Philips 20PT2882/71R (No Power)
@master PIEZO salamat. check ko ulit sa parteng yan
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
di pa pala ito tapoz ?
@Electro sori mali akng naipost ko.. tama sila X-ray protect yan...\
@all sori tao lng
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im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
ok lang iyon master. tapos na pala ito. vertical ic pala ang sira hindi umubra iyong nabili ko. fake nakakainis. butit may extra ako galing sa sanyo tv
sa lahat ng nagbigay ng ideya. salamat mga master sa uulitin
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
tag-iisang puntos pala sa inyo mga master
Electro- 24V BATTERY
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Re: Philips 20PT2882/71R (No Power)
@electro congrats share mo pa ang iba mong mga repair dito
pyroelectro- C Battery
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Re: Philips 20PT2882/71R (No Power)
opo master gagawin ko talaga yan.
Electro- 24V BATTERY
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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