Electronics Lab Philippines

OVATION LCD model, OVA -HKC22A2

Offline bistek

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OVATION LCD model, OVA -HKC22A2
« on: March 17, 2014, 11:10:11 AM »
mga master may ginagawa din ako LCD tatak nya OVATION ang problema pag i ON mo naka standby red light then ON mo sa remote mag green naman ung light nya lalabas logo ng OVATION then lalabas S-MODE then after2 sec. wala na yung S-mode turn to black screen pero naka green yung light nya di bablik ng standby naka green light lang pinalitan ko na ng 2 ecap 1000/25v at isa 470/25v located mga ecap para sa 12v supply master di kaya sa bulb na ng LCD? salamat

Offline saipper

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #1 on: March 17, 2014, 11:13:07 AM »
maaring sa eeprom yan.

or

sa tact sw. palitan mo na rin para bawas duda..
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #2 on: March 17, 2014, 11:24:17 AM »
master saipper inalis ko na lahat ng tact switch by remote na ang ginamit ko namamatay pa din mga master pag ganitong sira bumibitaw ayaw mag steady  ano ang madalas nasisira? di kaya system ic nito?

Offline saipper

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #3 on: March 17, 2014, 12:09:12 PM »
master saipper inalis ko na lahat ng tact switch by remote na ang ginamit ko namamatay pa din mga master pag ganitong sira bumibitaw ayaw mag steady  ano ang madalas nasisira? di kaya system ic nito?

check mo muna kung anong supply ang bumibitaw.

try mo rin eeprom muna bago desisyunan ng system IC
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #4 on: March 17, 2014, 10:05:01 PM »
master malimit san ang nakalugar ang eeprom nito kasi dalawa lang ang board ng LCD, power supply at system board kasama na dito mga color?

Offline saipper

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #5 on: March 17, 2014, 10:15:10 PM »
kalimitan malapit sa system IC ang memory.
8pin
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #6 on: March 17, 2014, 10:18:25 PM »
mga master di kaya bulb ng LCD? kaya ayaw mag steady? kasi pag nag OFF di nagbbago yung indicator light sa standby red light pag nag OFF green indicator pa din it means naka ON pa din salamat

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #7 on: March 17, 2014, 10:26:34 PM »
mga master di kaya bulb ng LCD? kaya ayaw mag steady? kasi pag nag OFF di nagbbago yung indicator light sa standby red light pag nag OFF green indicator pa din it means naka ON pa din salamat

ano ba yung S mode na nabanggit mo? Service Mode ba?

kung oo, ndi normal na lumabas yan kaya sabi ko try mo muna eeprom.
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #8 on: March 18, 2014, 10:28:57 AM »
master yung S mode sa MENU un palagay ko nang bumitaw ito nanonood sila ng DVD ngayon nailipat ko siya sa TV mode kaso kailangan mabilisan ang paglipat kasi nawawala agad ang picture nya ngayon sa tv may picture at sound kaso ganun din nawawala ang picture after 3 sec lang?

Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #9 on: March 18, 2014, 10:34:53 AM »
pag nawawala ang picture di bumabalik sa standby red light/ naka green light lang i OFF mo sya mag standby red light i ON mo naka green light lalabas logo ng OVATION tapos mga 10 sec lalabas na tv station then after 2 sec wala ng picture

Offline saipper

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #10 on: March 18, 2014, 12:02:43 PM »
try ka ng ibang inverter or hanapin mo sa inverter kung namamatay.
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #11 on: March 19, 2014, 08:48:47 PM »
master di kaya sa backlight? at ano itsura ng inverter? paano malalaman kung may supply ang bawat backlight at paan din magsukat banda sa inverter kung may supply? salamat

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #12 on: March 19, 2014, 08:54:26 PM »
master kung sa oscillation naman dapat babalik uli ng standby redlight kaso pag nawala ang picture naka green light pa din? at mga master kung sa PCB main ang problema san kaya ang madalas masira dito? dati nakagawa na ako ng pag ON namamatay babalik ng standby ecap ng 12v lang ang sira lumobo dito naman sa ginagawa ko walang ecap na lumobo

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #13 on: March 20, 2014, 07:22:38 AM »
master di kaya sa backlight? at ano itsura ng inverter? paano malalaman kung may supply ang bawat backlight at paan din magsukat banda sa inverter kung may supply? salamat

ang backlight nakakabit sa inevrter. at ang supply ng backlight is high voltage.
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Offline bistek

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #14 on: March 20, 2014, 08:20:43 AM »
paano ang magsukat sa inverter AC or DC sa tester at mga ilan ang supply nito?

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #15 on: March 20, 2014, 08:38:02 AM »
mga master may naka gawa na po ba kayo ganitong sira na pag i ON then namamatay ayaw mag steady  ano ang  malimit na nasisisra? kung sa PCB main san po banda yung parts na napalitan nyo na nag stable na siya?

Re: OVATION LCD model, OVA -HKC22A2
« Reply #16 on: February 10, 2015, 02:38:23 AM »
na-solved na ba? pareho din problema ng monitor ko. ano naging solution?

Re: OVATION LCD model, OVA -HKC22A2
« Reply #17 on: February 10, 2015, 02:57:30 AM »
na-solved na ba? pareho din problema ng monitor ko. ano naging solution?

pag nawawala ang picture di bumabalik sa standby red light/ naka green light lang i OFF mo sya mag standby red light i ON mo naka green light lalabas logo ng OVATION tapos mga 10 sec lalabas na tv station then after 2 sec wala ng picture

master yung S mode sa MENU un palagay ko nang bumitaw ito nanonood sila ng DVD ngayon nailipat ko siya sa TV mode kaso kailangan mabilisan ang paglipat kasi nawawala agad ang picture nya ngayon sa tv may picture at sound kaso ganun din nawawala ang picture after 3 sec lang?

ganon nga nailipat ko source from TV to PC at mabilisan. 'pag nag-power on via remote labas ang logo mga 1-2 seconds, black screen, t'pos ilang seconds pa labas naman ang PC desktop, ganon din 1-2 sec. black screen na.

backlight problema kaya? dahil  nakikita screen image 'pag ini-ilawan ng flashlight. di ko nga malaman kung inverter or CCFL, btw, napalitan ko 2 - 1000uf 25V at isang 470uf 25V, ganon pa rin. http://www.elab.ph/forum/Smileys/default/embarrassed.gif

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Re: OVATION LCD model, OVA -HKC22A2
« Reply #18 on: February 11, 2015, 06:23:48 AM »
easy ka lng bistek pang karaniwang trouble lng yan,pag ba nag black at pinidot mo ang remote nag reresponse ba yong green light mo?may sound ba?
sagot ka muna.

Re: OVATION LCD model, OVA -HKC22A2
« Reply #19 on: September 20, 2016, 09:28:55 AM »
mlamang busted n yung backlight mo sir.if may supply nmn galing sa inverter.usually pink nd blue ang kulay ng wire.