drive transformer sa JVC 21BA17B

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drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 4:36 pm

mga brod..patulong..
in accident nasira ko yung drive transformer (T521) wth part number of qqr1522-001.
nakatatak sa ibabaw nya eh 1522

sinuyod ko raon pero wala ako makita noon.
(naputol kasi yung wire na nakaloop sa coil).

pd koba syang salpakan ng drive transformer din..kaso iba yung naka tataksa ibabaw nya..( LZb7 )

any advice mga brod.
orsaan ako makakuha ng 1522??

patulong nman

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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 4:52 pm


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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 4:53 pm


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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 5:00 pm


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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 5:42 pm

does it matter ba kung salpakan ko ng magkaitsura sila at mag ka size pero iba ang code sa taas..sabi nung nasa RAON eh sa TV din daw yun..( galing Old BOARD )

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Re: drive transformer sa JVC 21BA17B

Post by ultrasonic™ on Tue Jan 10, 2012 6:44 pm


yapz pwede nga palitan yan ng ibang hitsura at number. be sure lng na HDT xa. (horizontal drive transformer) most of the hdt nmn ay same lng ng turn ratio. dpat be aware lng sa primary winding at secondary winding.. bka kasi mgkapalit. (^_^ to be sure kng tama man ang replacemnt mu. wag mu munang ikabit ang H-out. test mu muna sa scope kng around 15khz ang osc. mu.

teka nga pala. kng naputol lng ang winding sa terminal pin. at di pa totally sunog ang buong windings. pwpwede pa yan ikabit ulit.. idugtong mu nlng.. siguraduhin lng na natanggal ang insulated varnish ng magnetic wires pra mgkaroon ng connection

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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 6:55 pm

sir..putol po talaga as in sagad..try ko nga po,hapapinyung putol pero diko makita. di naman sya sunog sir. nabagsakan kasi.. kaya umigkas at naputol..

nga pla sir.. update now..pinalitanko lahat ng capacitor at vertical at yung drive transformer nga ( katulad na katulad ng dati atsa TV din daw nakakabit yun before )

nawala na yung tick sound pero..napansin ko..

pag on ko : matagal mag power ON( red stanbylight )mga 5sec estimate

then pag nag pindot ako chanel. ang bilis ng Blink ng Red Light.
sa drive transformer kaya yun??

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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 7:11 pm

dati sir pag pindot mo ng power ng TV eh mag RED light agad indicator. then pag nagpindot ka ng chanel eh mag TICK sound sya..i think 4x.then standby RED LIGHT.

now eh..pag pindot mo power..matagal sya mag ON ( red LIGHT standby ) mga 5-8sec saka iilaw yung red LIGHT

then pag nagpindot ka channel..(wala na yung TICK sound pero mabilis yung ON at OFF ng redlight..di sya namamatay ( unless na OFF mo uli power)

possible kaya dun sa nilagay kung drive transformer ( katulad na katulad.exceptfor the number indicated on top)

di rin pdmagkapalit ng primary at secondary kasi sa primary nya medyo makapal magnetwire at 2 PINlang sya at sasecondary naman eh 3 pin sya (yung gitna wala connection) at manipis wire..

any possible cause sir??

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Re: drive transformer sa JVC 21BA17B

Post by ultrasonic™ on Tue Jan 10, 2012 7:49 pm

regarding dun sa naputol. pwde mung baklasin ang buong winding ng HDT. then balik mu ulit, rewound kng baga. tyaga nga lng ang kailangan.

now jan sa querry mu about nbago ang response ng system based sa power led indicator mu ay pwde nga yan cause ng failure sa HDT. kasi it considered na pg di yan gumana ng matino ay wla kang hor. sync pulse na mapoproduce which is mgtitrigger sana yan pabalik sa system con.

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Re: drive transformer sa JVC 21BA17B

Post by willyboy on Tue Jan 10, 2012 10:58 pm

boss Ultra..update po.. nung double check ko yung Lumang HDT na naputol..1wire lang po putol at ginamitan ko ng magnifying lens at napilitko pung hatakin konti at i hinang uli (naglagay ako ng jumper)

nag continuity check ako sa primary ( ok) at sa naputol na secondary
(ok) na din.

pero same result..i dont think na sa HDT cause nito..di kaya parang activated agad TIMER nito??

mabilis kasi blink sa RED LIGHT..

(walang TICK sound na maririnig )

what posible cause kaya

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Re: drive transformer sa JVC 21BA17B

Post by ultrasonic™ on Mon Jan 16, 2012 11:44 am


buti nmn at naayos mu ang orig na HDT mu..

ok dahil wlang improvement.. voltage checking ka ulit sa PSU mu... unahin ang B+
9V for Hvcc ng jungle
5V for system

try mu nga palang hinang ang EEPROM mu...
bka my improvement

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Re: drive transformer sa JVC 21BA17B

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