JVC AV21ME Power problem

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JVC AV21ME Power problem

Post by Romy on Thu Dec 27, 2012 9:31 am

Mga sir magandang po araw sa inyo. Ask ko lang po kung anu problem kapag nagbabright screen ung tv tapos nagsshutdown. ok naman po yung signal pero kapag tumagal ng konti ganun na po ung nangyayari.

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Thu Dec 27, 2012 11:59 am


nasubukan na bang palitan ang Video Caps mo? xxuf/160 or 250V
nasubukan na rin bang babaan ng kunti ang Screen supply mo?

add more info pa sis.. para mtulungan kta

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Re: JVC AV21ME Power problem

Post by Romy on Thu Dec 27, 2012 12:42 pm

natry ko na pong babaan ung screen pero ganun pa din po. di ko pa po nasubukan palitan ung caps. cge po try ko muna magpalit ng caps.

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Re: JVC AV21ME Power problem

Post by DJFEL on Sat Dec 29, 2012 11:57 am

parang my lick yata na ecap..CRT bord ang probs yata nito..

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Re: JVC AV21ME Power problem

Post by DJFEL on Sat Dec 29, 2012 12:01 pm

baka lenis lang to ng CRT sukit..

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Re: JVC AV21ME Power problem

Post by Romy on Thu Jan 03, 2013 12:52 pm

sir DJFEL nalinis ko na po. nacheck ko na rin mga resitor and caps nito kaya lang ganun pa din po. meron po ba kaung diagram nito? pashare naman po. tnx po.

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Thu Jan 03, 2013 1:28 pm


di ko matiyak anong chassis eto.... subukan mo nlng silipin dito sis bka meron na taung naipost


TELEVISION Diagram List

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Re: JVC AV21ME Power problem

Post by Romy on Thu Jan 03, 2013 3:40 pm

wala po dito sir ultra. e2 po yung mga piyesa niya.
REG - STR S6707
VERT - LA7837
HOT - D1878
VIDEO - M52325AP
JUNGLE - M52343SP
anu po kaya ung pwede kung pagbasehan na mapa nito sir?

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Fri Jan 04, 2013 1:03 pm

medjo my kalumaan na pala ang modelong yan sis...

eto lng nakita ko sa database na medjo tugma nya... bka pwde ng pang bases
JVC chassis MZ2

sana mkatulong

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Re: JVC AV21ME Power problem

Post by DJFEL on Sat Jan 05, 2013 11:30 am

ano kaya apdit neto..

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Re: JVC AV21ME Power problem

Post by arkin on Sat Jan 05, 2013 7:40 pm

chek rin abl resistors,bka x-ray protect yan...

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Re: JVC AV21ME Power problem

Post by DJFEL on Sun Jan 06, 2013 10:09 am

abang nalang..

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Re: JVC AV21ME Power problem

Post by zandertech on Sun Jan 06, 2013 11:47 am

sir baka may leak ka da driver ng RGB may nagawa ko nyan ung IC ang driver pag unang bukas ok tapos katagalan nag hi-high screen na puro guhit then off ,. try mu sir bka same problem tayo un lng pinalitan ko ok na sya Smile

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Re: JVC AV21ME Power problem

Post by DJFEL on Sun Jan 06, 2013 5:13 pm

abang nalang...

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Re: JVC AV21ME Power problem

Post by Romy on Mon Jan 07, 2013 2:29 pm

update po ng JVC q. tnry ko pong ihang ung video/chroma niya. namamatay pa din po. umiilaw po yung error lamp niya pag namamatay. nagpallit na rin po ako ng mga ecaps sa may video section at sa HV section. nacheck ko na din po yung abl resistors ok naman po. tanong lang po, may posibility po bang magbago yung resistance ng abl resistors kapag naka on na yung set?
@zander, kapg po naghigh screen yung skn di naman po lumalabas yung retrace lines. pure white screen lang po tapos minsan pure yellow screen den shutdon tapos umiilaw na yung error lamp.

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Mon Jan 07, 2013 5:06 pm

hhmmppff double check mo nga sis ang C board mo

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Re: JVC AV21ME Power problem

Post by Electro on Tue Jan 08, 2013 2:07 pm

Romy wrote:update po ng JVC q. tnry ko pong ihang ung video/chroma niya. namamatay pa din po. umiilaw po yung error lamp niya pag namamatay. nagpallit na rin po ako ng mga ecaps sa may video section at sa HV section. nacheck ko na din po yung abl resistors ok naman po. tanong lang po, may posibility po bang magbago yung resistance ng abl resistors kapag naka on na yung set?
@zander, kapg po naghigh screen yung skn di naman po lumalabas yung retrace lines. pure white screen lang po tapos minsan pure yellow screen den shutdon tapos umiilaw na yung error lamp.

master hindi po ba dapat hindi hinahang ang chroma? dahil hindi siya mag oscillate

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Tue Jan 08, 2013 7:04 pm


^ agree

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Re: JVC AV21ME Power problem

Post by Romy on Tue Jan 08, 2013 11:15 pm

ganun po ba..cenxa na po kulang pa talaga ako ng kaalaman.Smile anu po ba dapat kung gawin dito sa set na to?

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Re: JVC AV21ME Power problem

Post by DJFEL on Wed Jan 09, 2013 1:49 pm

chik c-bord my sira pa rin dyan..yong 3 tranis dyan...yong naka paligid sa tatlong tranis..

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Re: JVC AV21ME Power problem

Post by Romy on Thu Jan 10, 2013 7:26 pm

sir update lang po. chineck ko po yung mga resistor at trannies sa may crt board. ok naman po lahat. tanong lang po, ung output po kasi nung pin 21,22,&23 ng IC M52343 eh 2.7 v sa diagram, nung tenest ko po 2.7 v den umaakyat xa ng 3.5 den dun xa namamatay. Tapos po yung collector ng tranny (rgb) sa may crt 180 v tapos bumababa po ng 90 v den off. Possible po ba na may deperensiya yung IC M52343?

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Re: JVC AV21ME Power problem

Post by Electro on Fri Jan 11, 2013 2:07 pm

master check niyo ang 9v ng jungle baka weak master pati din ang B+

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Re: JVC AV21ME Power problem

Post by ultrasonic™ on Sat Jan 12, 2013 1:12 pm

^ agree Hvcc iyan.. btw @sis Romy... ilan ang B+ mo? during & after shutdown?

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Re: JVC AV21ME Power problem

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