110v tv ko na plug in ko sa 220v. no power but relay s ok

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110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Tue Feb 07, 2012 8:21 pm

mga bos patulong naman. yung 110v tv ko na plug in ko sa 220v accidentaly. try kong ayusin pero hindi ko makita ang problema. no power xa pero ang kanyang relay ay gumagana pa nman.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by arkin on Wed Feb 08, 2012 1:41 pm

cguro my trans4mer pra sa syscon,pkichek lng..my unit dn kc na separate ang suply ng syscon at choper.i-chek mo kong my relay na gnamit na switch sa AC ptungong regulator circuit.or direkta mong i-voltage chek yong main filter[usualy 200 v ecap]

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Thu Feb 09, 2012 12:15 pm

ou merong switch relay before mag regulator. at mayroon ding voltage dn dun sa malaking capacitor. ang problema lang ngayon ay walang pic at wlang sounds.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by arkin on Thu Feb 09, 2012 2:58 pm

chek mo b+,tapos chek dn horizontal transistor..

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by ultrasonic™ on Sat Feb 11, 2012 5:29 pm

kng wlang B+. mlamang di nag-ooscillate ang power reg...

@TS saang kumukuha ng supply ang relay circuit mu ?
anu nga pala ang modelo nito tv mu ?

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Sun Feb 12, 2012 4:04 am

funai ang brand 13" xa, kaso hindi q alam ang model nito parang surplus lang kc ito.

...., may voltage nman sa malaking capacitor kaso parang mahina, pag e dinisharge ko kc ito mahinang spark lang ang nakikita at nadidinig ko

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by arkin on Sun Feb 12, 2012 8:50 am

voltage chek mo main filter kong magkno.kng abot ng 130 ptaas,ok ang rectifier circuit mo.kng 80 pababa,chk rectifier circuit.dont practice shoting to discharge method,nkakasira yon ng ibang psa.gmitin mo soldering iron mo[not for shorting ha Evil or Very Mad ]tap lng yong ac plug sa + at - ng ecaps to discharge.sabay na rin i-chk b+ kng my out ba.kng wla,chk regulator circuit.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Wed Feb 15, 2012 1:07 am

ito po ang mga pics sana tulungan nyo ako, kung saan ako mag memeasure or mag ttrouble shoot, tnx n advanc










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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by ultrasonic™ on Wed Feb 15, 2012 10:45 am

tama si arkin. avoid to do that... , malpractice ang pagsoshort ng capacitor terminal lalot mlakas ang naiistored jan...

basa na rin dito

@TS tumuon nlng muna sa PSU



unahin echeck ang main/primary cap dpat around vrms 180v dc ka nga jan, dhil 110v ac operated yang unit mu..

pg masxadong mababa around 80v below.. check mung maigi ang bridge diode, wirewound resist at lahat ng dadaanan nya..

kng ok nmn ang primary supply mu. sundan mu nmn yan papuntang regulator. bka di umaabot. kng umabot man ay pwde may problema kau sa mga small peripherals lalot kng wla kang masukat na b+ supply sa secondary caps.

paalaala ulit: anu ang silbi ng relay sa tv mu ?
dpat aware ka na jan..

pwde kasi yang pang power switch o switcher ng degaussing

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Fri Feb 17, 2012 3:42 am

boss ultra: parang sa power switch ata yang relay q.cnxa

boss may nakita akong resistor na nag coconekta sa main filter papuntang sinasabi mo na regulator, ang color coding nya ay brown, black,gold, gold. open xa pag reading q. poseble po ba ito ang sira?

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by ultrasonic™ on Fri Feb 17, 2012 10:41 am


kng open ang fusible resistor (1ohm) na yan, ay yan na nga cguro ang dhilan kng bkit wla kaung supply papuntang regulator. palitan nlng muna yan. but before to plug in... check mu muna maigi ang power regulator at ang H-out baka shorted na ang isa sa mga yan...

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Fri Feb 17, 2012 7:29 pm

boss normal lang po ba to, may lumalabas na spark sa anode cap niya? may naririnig na po akong boses ng tao sa tv boss kaso horizontal light lang yung nakikita walang tao.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by arkin on Sat Feb 18, 2012 9:36 am

chek muna kong my butas ba sa anode cap.kng wla,try mo lng ayosin ang position nto.try mo rin linisin yong kinabitan ng anode cap.vertical problem yan pag horizontal line lng mkikita mo.chek muna kng my suply ba sa vertical,kng wla,chk ecaps.if ok lng ecaps,plitan mo vertical ic.malamang,yong ic na mlapit sa regulator ang vertical ic.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Sat Feb 18, 2012 4:58 pm

ok na xa boss. ang problema nlang ay puti lang ang nakikita walang tao pwo may boses nman.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Sat Feb 18, 2012 6:43 pm

tnx sa inyung lahat mga bosing, i've learned a lot. ok na po pla ang tv q

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by ultrasonic™ on Mon Feb 20, 2012 5:37 pm


congratz... may napihit ka lng sigurong service switch (^_^

bigyan mu na rin ng point si arkin


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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Sat Feb 25, 2012 1:52 am

fusable resistor ra d i ang reason master y walay power, dn soldering ra sa mga piesa ang about sa vertical

hmm master ultra how to earn points po ba?and how to give points to those who heleped me. hehe tnx po pla, nadungagan akong idea about tv. newie pa d i ko, i took 3 months course about electronics but kuwangan ko sa akong nahibawan. tnx sana welcom ako dito. pacenxa sa abala. Smile

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by ultrasonic™ on Tue Feb 28, 2012 7:24 pm


oie congratz kng ganun... welcome na welcome ka dito..
share share lng tau

to earn points. be helpful lng sa mga co member natin dito sila na mgbibigay sau ng points lalot nkakatulong ka sa knila

to gave points nmn sa mga taong nkatulong sau.. click mu lng ang + sign sa right side ng bwat points ng member

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Tue Feb 28, 2012 9:08 pm

ok po tnx ng marami. mag bibigay na ako ng points sa inyu

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn798 on Tue Feb 28, 2012 9:14 pm

sa maka solv ng problem ng appliances nila {kagaya ko} hehe, makaka earn dn po ba ako ng points? Very Happy

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by Electro on Sat Mar 03, 2012 6:02 pm


+1 sa lahat ng master

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by bjohn7908 on Sat Aug 04, 2012 3:34 pm

mga master may pahabol lang akong question about sa unit na ito ibinalik kasi sa akin, ang problem po ay bigla nlang namamatay ung unit. wat are the possible problem of this one?

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by james on Sat Aug 04, 2012 6:42 pm

voltage check uli from primary.

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by triac on Mon Aug 06, 2012 4:02 pm

sir bjohn kung pwede e state mo dito kung ano ang brand at saka model ng tv mo.Kung pwede ma masukat sa analog tester kung saan ang nagdadrop yung voltage..ok ba ang primary side or secondary side pati b+ nagdrop rin ba?

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

Post by Oscar on Mon Aug 06, 2012 6:30 pm


tama sila master bjohn. voltage check uli

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Re: 110v tv ko na plug in ko sa 220v. no power but relay s ok

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