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Author Topic: st-21kf2 standby only,  (Read 631 times)

Offline alroy

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st-21kf2 standby only,
« on: January 26, 2012, 10:21:25 AM »
master help po kung pwede ba ma replace ang D5339 sa output transistor..orig value po dito ay D2634...
duda po kc ako sa ipinalit nang dating tech...ayaw po mag oscillate ang unit..may nasukat po ako b+ 129v.
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st-21kf2 standby only,
« on: January 26, 2012, 10:21:25 AM »

Offline alroy

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Re: st-21kf2 standby only,
« Reply #1 on: January 26, 2012, 11:58:16 AM »
sorry c5339 po pala
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Re: st-21kf2 standby only,
« Reply #1 on: January 26, 2012, 11:58:16 AM »

Offline acer

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Re: st-21kf2 standby only,
« Reply #2 on: January 26, 2012, 12:28:24 PM »
pareho lang yan sis wala ka bang naramdamang hibo
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Re: st-21kf2 standby only,
« Reply #2 on: January 26, 2012, 12:28:24 PM »

Offline alroy

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Re: st-21kf2 standby only,
« Reply #3 on: January 26, 2012, 01:13:02 PM »
sir nag horizontal line napo xa,pero may shadow sa baba at taas nang horizontal line..same c5339 ang ginamit,mga 20 mins pinaandar kc nagvoltage reading ayun nadali na ang c5339...
palit nlng kaya ako orig value na d2634...ngayon lng po ako naka troubleshoot na may shadow ang line..ano po kaya dapat ang i check ko?
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Re: st-21kf2 standby only,
« Reply #3 on: January 26, 2012, 01:13:02 PM »

Offline DSM_elektronix_shop

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Re: st-21kf2 standby only,
« Reply #4 on: January 26, 2012, 01:19:10 PM »
one line vertically ba o one line horizantally sa screen>>pkilinaw po..

kung may shadow naman baka crt socket tapos kung line lang na pahorizotal malamang vertical problem yan>>>try check vsupply...at vert section caps
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Re: st-21kf2 standby only,
« Reply #4 on: January 26, 2012, 01:19:10 PM »

Offline alroy

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Re: st-21kf2 standby only,
« Reply #5 on: January 26, 2012, 01:26:42 PM »
horizontal line po sir.....palit na ako ecaps around vertical ic la78040 and resistor is all good po,no luck pa rin po
hahanap pa ako vertical ic  para masubukan..
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Offline J@M

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Re: st-21kf2 standby only,
« Reply #6 on: January 26, 2012, 02:31:16 PM »
Voltage reading sir ng vertical section, double check lecap lalo na sa suply...makapal ba line?
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Offline alroy

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Re: st-21kf2 standby only,
« Reply #7 on: January 26, 2012, 02:34:22 PM »
medyo makapal po...pero sure ako hindi s yoke ang cause nang horizontal line
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Offline pete

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Re: st-21kf2 standby only,
« Reply #8 on: January 26, 2012, 03:33:14 PM »
anong chassis nito sir?

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Offline alroy

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Re: st-21kf2 standby only,
« Reply #9 on: January 26, 2012, 05:11:40 PM »
chasis FC3-B21
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Offline enriz622

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Re: st-21kf2 standby only,
« Reply #10 on: January 26, 2012, 07:54:04 PM »
normal ba init ng vertical ic sis
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Offline DSM_elektronix_shop

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Re: st-21kf2 standby only,
« Reply #11 on: January 26, 2012, 07:57:15 PM »
direct replace mo nga ic pra bawas duda
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Offline NORTH LUZON

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Re: st-21kf2 standby only,
« Reply #12 on: January 26, 2012, 10:24:30 PM »
ecap yata sa vert ckt
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Offline JiMmYbRaVø

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Re: st-21kf2 standby only,
« Reply #13 on: January 29, 2012, 06:35:41 AM »
tma si sis dsm,palit ka ver ic para iwas duda..ung original HOT value na dn ilagay mo.. O kaya try mo muna mag adjust sa hor height b ung twag dun?hehe yung pinipihit. Or try m0 muna i-on ang t.v .painitin mo mga 5 or 10mins,then ioff,tapos damahin m0 mga bunbunan ng mga ecaps jan sa sec0ndary,ver ckt at hor ckt. Pag nag iinit palitan mo na.. Thanks
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Offline alroy

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Re: st-21kf2 standby only,
« Reply #14 on: January 29, 2012, 10:15:03 AM »
mga master problem solved po.....pinalitan ko na lng nang original value na D2634..
medyo may kaibahan po kc ang specs nang C5339 sa orig value na D2634...
tnx po sa uulitin!
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Offline NORTH LUZON

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Re: st-21kf2 standby only,
« Reply #15 on: January 29, 2012, 10:18:06 AM »
Quote from: alroy on January 29, 2012, 10:15:03 AM
mga master problem solved po.....pinalitan ko na lng nang original value na D2634..
medyo may kaibahan po kc ang specs nang C5339 sa orig value na D2634...
tnx po sa uulitin!

congrats na pala to
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Offline enriz622

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Re: st-21kf2 standby only,
« Reply #16 on: January 29, 2012, 11:26:26 AM »
Alang damper,congrats sis
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Online Tripler02

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Re: st-21kf2 standby only,
« Reply #17 on: January 29, 2012, 12:13:10 PM »
anu daw?horizontal line tapos nagpalit ng hot ok na?
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Offline DSM_elektronix_shop

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Re: st-21kf2 standby only,
« Reply #18 on: January 29, 2012, 12:36:59 PM »
nagtataka nga ako bakit c5339 ang nakakabit...sa mnitor ng computer hout un ko kadalasan nakakabit ko nakikita o kaya naman pang replace sa regulator ng china board tv...ala nga damper yun...congrats
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Alvin Y. Carulasan
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Philippine Electronics Forum

Re: st-21kf2 standby only,
« Reply #18 on: January 29, 2012, 12:36:59 PM »
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