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JVC AV-21BA17B schematic

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DJFEL
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Post by Lenaren Sat Mar 16, 2013 5:53 pm

Sino po sa inyo may diagram nito? Gusto ko sanang malaman kung ano regulator at ibang parts nito... Galing kc sa ibang tech to... tinanggal kc ung ibang parts...

Thanks!!
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Post by ultrasonic™ Sat Mar 16, 2013 6:57 pm


anong exact chassis ?
mostly nka board imprinted/sticker printed sa gitna ng board

pero mas mlakas ang vibration ng bolang kristal na Chassis CW3

hula mode (^_^

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Post by Lenaren Sat Mar 16, 2013 7:38 pm

Tama nga kayo master ultra...

Problem kasi nito master... Nung kinabit ko na ung mga parts... Pagka-ON... umusok agad ang 3.9ohms 10W resistor... Kasalanan ko rin master... di ko na-confirm kung tama ang mga parts nito...

Ano po ba tamang regulator nito? Ung binigay kasi sa akin STR W6756... ayun tuloy kasama sa sumabog! scratch ... Sa thread na nabasa ko dito STR W6554A-F5 ung regulator ang nakalagay.... Eto ba ang tamang reg nito?

Anong dahilan ba't sumabog master ung reg at 10W resistor?
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Post by ultrasonic™ Mon Mar 18, 2013 11:47 am

mhrap mgcommento lalot di ako cgurado sa chassis ng unit
mo

pkitignan nlng ang sticker like this one:

JVC AV-21BA17B schematic JVCCGchassisboard

JVC AV-21BA17B schematic AV-21CN14_zpsa3fa9aa9

pki confirm nlng muna.. para maitama natin kng my mali man

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Post by Lenaren Mon Mar 18, 2013 2:29 pm

Nakalagay sa sticker sis SCW-1956A...
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Post by ultrasonic™ Wed Mar 20, 2013 3:24 pm

kng yan ang nkalagay... cw3 yan... pki check kng ang mga placemnt # ng mga diodes sa psu ay d92x series nka imprint lalo na ang d922 (36v).. pg ganyan strw6554a ang isampak mo..

pg d93x series naman ay cw chassis yan na strw6756 ang reg... na gumagamit ng 27v sa d932

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Post by Lenaren Thu Mar 21, 2013 12:45 pm

OK thanks.... check ko na lang... 1+ for you... Smile
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Post by Lenaren Fri Mar 22, 2013 1:23 pm

Sis d92x series ung naka-imprint sa board, so, W6554A talaga regulator nito....

Naging dahilan din ba sis kung bat nasira at umusok agad ung 10W resistor dahil maling regulator ang sinampak ko? scratch
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Post by ultrasonic™ Fri Mar 22, 2013 3:44 pm

pwde kasi iba ang pinning ng reg na yan sa isa.. lalo na ang feedback
ano ba ang exact part number ng resist ang tnutukoy mo.. try nating eback trace

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Post by DJFEL Sun Mar 24, 2013 9:54 am

male yata na sampak mong risisto...
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Post by Lenaren Sun Mar 24, 2013 2:55 pm

ung resistor dati na to.... nung dinala kasi sa akin ung TV na to walang regulator na nakasampak... kinuha nung ibang tech... nung kinuha ng may-ari ang piyesa sa tech.. sinampak ko... ayon pag-ON ng TV amoy sunog agad...

JVC AV-21BA17B schematic Rest_zps18a1635b

...yan ung resistor na yan... wire wound na 3.9ohms @ 10W... (CW3 chassis ginamit ko wala kasi akong exact diagram nito)

Ano kaya nangyari dito master?
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Post by Hertz Sun Mar 24, 2013 9:59 pm

bakit iba ang value ng resistor? puede rectifier circuit ang may problema dyan. check mo ang bridge diode (d901) baka shorted na ang mga pins niyan.

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Post by Hertz Sun Mar 24, 2013 10:01 pm

o tanggalin mo muna ang regulator lagyan mo ulit ng resistor. pag nasunog ulit. bridge diode nga iyan o mga parts na malapit sa kanya

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Post by Lenaren Mon Mar 25, 2013 1:15 pm

...OK naman sis ung bridge diode.... di naman shorted.... try ko na lang muna ulit....
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Post by ultrasonic™ Mon Mar 25, 2013 1:52 pm

mkikiagree ako ky hertz.. lalot kng nkaunload ang power reg...


double check nlng sis... bka shorted ang dalawang diode sa bridge diode

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Post by triac Tue Mar 26, 2013 10:24 am

Hertz wrote:o tanggalin mo muna ang regulator lagyan mo ulit ng resistor. pag nasunog ulit. bridge diode nga iyan o mga parts na malapit sa kanya

sir hertz lahat ng tv ba pwede ba tanngalin ang regulator at e ON?Kailangan po ba e hang ang collector ng H-out?ano pa po ba ang dapat gawin?salamat? Question
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Post by Hertz Tue Mar 26, 2013 10:34 am

uh-huh lalo na pag ganyan na ganyan ang scene.

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Post by Lenaren Wed Mar 27, 2013 11:02 pm

Update lang... OK master ung bridge diode... Ang napansin ko lang pag nakasampak ung regulator merong reading ung bridge diode on both direction....

...chineck ko rin ung regulator shorted ung pin 1 at pin 3... pag shorted ba ung mga pins nato maging dahilan din ba master na mag-oopen ung 3.9 ohms 10W resistor ko???...

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Post by Digitap Fri Mar 29, 2013 4:38 pm

iyan na siguro ang dahilan kuya
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Post by Lenaren Fri Mar 29, 2013 7:08 pm

...Thanks sis!!!
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Post by Hertz Sun Mar 31, 2013 11:01 pm

tanggalin mo sa board ang regulator at check ang mga nabanggit na pin. pag short nga ay palitan ng bagong regulator

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Post by Electro Mon Apr 01, 2013 12:34 pm

sang ayon ako sayo master.
@master lenaren check niyo din ang degaussing
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Post by ultrasonic™ Mon Apr 01, 2013 6:14 pm

mkikiagree ulit sa mga hatol nina hertz at jeff

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Post by Lenaren Tue Apr 02, 2013 1:07 pm

Salamat mga master!!!...

Confirmed po... na maling pyesa at shorted ang pin 1 & 3 ang ibinalik ng dating tech!!! scratch

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Post by triac Wed Apr 03, 2013 10:31 am

Hertz wrote:uh-huh lalo na pag ganyan na ganyan ang scene.
salamat po sa info sir hertz,,,d ko pa kasi alam yan..
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