Philips 20GX3555/71R (No power)

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Philips 20GX3555/71R (No power)

Post by Electro on Tue Sep 28, 2010 9:17 pm

mga masters patulong po dito
philips 21" 20GX3555/71R

wala po siyang B+ output
nagpalit na po ako ng viper ic
wala talaga baka may ideya po kayo

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Fri Oct 01, 2010 11:23 am

anong viper ic gamit niyan ?
nang ma check natin sa datasheet niya ?

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Re: Philips 20GX3555/71R (No power)

Post by Oscar on Fri Oct 01, 2010 3:18 pm

jeff hindi maka-oscillate ang unit ?

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Re: Philips 20GX3555/71R (No power)

Post by ultrasonic™ on Sun Oct 03, 2010 3:13 pm

@electro sori karon pa ko kasuroy diri

unsay PWM ic ana..
unsay chassis na ?

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Mon Oct 04, 2010 8:12 pm

wala baya ko kabalo sa iyang chassis master

uc3842BN diay ang iyang viper ic

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Tue Oct 05, 2010 11:31 am

@electro na check muna kong meron kang nakukuhang 14V sa Vcc pin





baka wala kayong supply kaya hindi gumagana ang viper/PWM ic niyo

uc3842bn

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Wed Oct 06, 2010 11:11 am

tama diay master. iyang supply sa viper wala pa nako na check

balitaan na lang tamo unya mga master
salamat

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Sat Oct 09, 2010 11:48 am

mga master update ko lang po
wala man koy makuhang reading sa iyang Vcc pin.
balitaan tamo sunod kong unsa galing

Oscar wrote:jeff hindi maka-oscillate ang unit ?

@oscar wa gayud naka oscillate. nakatrouble nakag pareha ani ?

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Re: Philips 20GX3555/71R (No power)

Post by Oscar on Tue Oct 12, 2010 5:09 pm

capacitor ra siguro na. check daw og balik

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Thu Oct 14, 2010 4:31 pm

Electro wrote:mga master update ko lang po
wala man koy makuhang reading sa iyang Vcc pin.
balitaan tamo sunod kong unsa galing

kong walang Vcc supply kayong nasusukat yan ang salarin bakit kayo walang oscillation sa power supply. subukan mong check ang linya niya.

respect to ground kayo

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Sat Oct 16, 2010 11:42 am

Electro wrote:
respect to ground kayo

unsaon pag respect to ground master ?

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Mon Oct 18, 2010 11:00 am

set mo ang tester mo sa voltmeter tapos lagay mo ang positive probe sa Vcc pin ng viper ic. steady mo lang yan diyan

ang negative probe naman ay ilalagay mo sa ground pin ng viper ic
pag wala kayong nasusukat sundan niyo ang linyang yan pabalik sa primary capacitor. lipat lipat ang probe para matukoy kong hanggang saan lang ang kuryente. dadaan yan ng mga resistor at mga capacitor baka may putol na linya diyan

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Re: Philips 20GX3555/71R (No power)

Post by ultrasonic™ on Mon Oct 18, 2010 3:00 pm

pa OT saglit:

@hertz nice respondz.. im so thankful na nandiyan kau para sagutin ang mga tanong ng mga kapatid natin sa larangan ng repair world..
1 point sau..

@Electro gudlak sau.. sundin mu nlng ang payo ni hertz na explane nmn niya ng maigi...

dagdagan ko nlng ng kunti.. kong ok ang respect to ground nyu at di mu mahagilap ang open path
check mu din ang respect to Vcc or positive ng PWM ic nyu
vice versa nyu nlng ang procedure. bali ang ground pin naman ang gawin mung common(steady test probe) tapoz ang red test probe naman ang ilipat lipat nyu..

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Wed Oct 20, 2010 5:52 pm

salamat sa mga ideya mga masters. check ko po ulit

salamat

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Re: Philips 20GX3555/71R (No power)

Post by Oscar on Thu Oct 21, 2010 10:48 am

jeff unsa nay balita ani ? ok na siya ?

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Wed Oct 27, 2010 12:36 pm

mga master magandang balita, nakita ko din ang salarin

change value na resistor 3510 = 33k 5% 3W malapit sa malaking capacitor


kina master ultrasonic™ at master hertz salamat
sa respect to ground at respect to positive technique niyo ang laki ng naitulong sa akin. nahuli ko agad ang salarin dahil sa technique na itinuro niyo
hindi nga makatawid ang Vcc supply may putol na linya.. at iyon ay dahil sa resistor na 33k salamat po ng marami sana poy wag kayong magsawang turuan at gabayan kami

pasenya na din po kong natagalan akong mag update

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Wed Oct 27, 2010 3:35 pm

walang anuman iyon

sanay wag din kayong magsawang tangkilikin ang forum ng mga taga usep

congrats nga pala


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Re: Philips 20GX3555/71R (No power)

Post by ultrasonic™ on Wed Nov 10, 2010 8:29 pm

oi delayed na diay kaau ko...

congratz... painom ka nmn jan Razz

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Sat Nov 20, 2010 5:53 pm

ultrasonic™ wrote:oi delayed na diay kaau ko...
congratz... painom ka nmn jan Razz

salamat po sa inyo master, ang laki po ng naitulong niyo sa akin
magpapainom po ako sa inyo master, ng mapag-usapan natin ang problema niyo.
kailan po ang free time niyo ?

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Re: Philips 20GX3555/71R (No power)

Post by Hertz on Wed Nov 24, 2010 1:59 pm


free time ? nako mahirap sagutin yan. hintayin na lang natin si sir ultra kong may sisasagot ba siya Twisted Evil

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Re: Philips 20GX3555/71R (No power)

Post by Electro on Wed Nov 24, 2010 7:29 pm

pati po ba sundays wala ?

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Re: Philips 20GX3555/71R (No power)

Post by pyroelectro on Fri Nov 26, 2010 9:44 pm

Hertz wrote:
free time ? nako mahirap sagutin yan. hintayin na lang natin si sir ultra kong may sisasagot ba siya Twisted Evil

sang-ayon ako sayo sir Twisted Evil

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Re: Philips 20GX3555/71R (No power)

Post by ultrasonic™ on Sat Dec 18, 2010 9:42 pm

meron din nmn akng free tym pg-sundays pero limit lng hinuon..

@electro same chassis lng ba sila nito ?


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Re: Philips 20GX3555/71R (No power)

Post by Electro on Thu Dec 23, 2010 9:52 pm


ganyan na ganyan nga master. Smile

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Re: Philips 20GX3555/71R (No power)

Post by rolando cerezo on Wed Sep 28, 2011 12:43 pm

mga master may problem ako sa philips model 20pt1582/71R may B+ sya 95 volts, kayalang on & off ang oscillation nya hinde nman po bumabagsak ang B+ nya, need ko po tulong nyo doubt

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Re: Philips 20GX3555/71R (No power)

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