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Author Topic: Samsung Lcd monitor backlight shutsdown SyncMaster 740n  (Read 1851 times)

Offline ultrasonic™

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #40 on: July 06, 2011, 02:58:43 PM »
@sis panyero,, minsan kc aabot ng 10 mins before mamatay ang light, sa ganitong scenario ccfl na rin ba ung salarin based on ur experiece?? kaw kac ikaw ung master sa ganitong category ;D

10mins pala  bago lumalabas ang probz..

pwedeng weak ccfl  nga yan o di  kaya  bumibitaw ang inverter circuit due high temp.
nag aactivate ang prot
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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #40 on: July 06, 2011, 02:58:43 PM »

Offline ultrasonic™

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #41 on: July 06, 2011, 06:31:32 PM »
ito na  sis noman DL  nyu  ;D

-->> http://www.4shared.com/file/GGWHZ-4I/repair_guide_of_lcd_monitor__s.html
passcode: sttm

regarding sa exact value ng resist. nasasainyo  na  yun... bastat pag-aralan  lang  mabuti ang flow ng circuit...

di ko pwedeng  banggitin alam  nyu na...
we have  the same protocol na sinusunod  ;D 

bastat dalawa  ang pwede  gawin  jan kong ayaw nyung  gumamit ng external ccfl driver... cut mu ang input ng inverter circuit o mismung sa oscillator ic ka magsimula at maglagay ng resistor at mag insert ka  ng  signal para mag saturate ito ng tuluyan na hindi  na iinterrupt ng protection ckt.

o hanapin ang feedback at tanggalin. palitan ng trimmer at dayain ang prot. ng tuluyan mabulag xa  na  di  pa  mahina ang ccfl  mu ;D



gudlak.

im always walking on the rain so that no one could see me crying




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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #41 on: July 06, 2011, 06:31:32 PM »

Offline panyero

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #42 on: July 06, 2011, 07:03:46 PM »
ito na  sis noman DL  nyu  ;D

-->> http://www.4shared.com/file/GGWHZ-4I/repair_guide_of_lcd_monitor__s.html
passcode: sttm

kuha kona sis bypas pala ng feedback ang sinasabi mo.mabuhay ka.

regarding sa exact value ng resist. nasasainyo  na  yun... bastat pag-aralan  lang  mabuti ang flow ng circuit...

di ko pwedeng  banggitin alam  nyu na...
we have  the same protocol na sinusunod  ;D 

bastat dalawa  ang pwede  gawin  jan kong ayaw nyung  gumamit ng external ccfl driver... cut mu ang input ng inverter circuit o mismung sa oscillator ic ka magsimula at maglagay ng resistor at mag insert ka  ng  signal para mag saturate ito ng tuluyan na hindi  na iinterrupt ng protection ckt.

o hanapin ang feedback at tanggalin. palitan ng trimmer at dayain ang prot. ng tuluyan mabulag xa  na  di  pa  mahina ang ccfl  mu ;D



gudlak.



Philippine Electronics Forum

Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #42 on: July 06, 2011, 07:03:46 PM »

Offline panyero

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #43 on: July 06, 2011, 07:19:31 PM »
nice sir +1

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #43 on: July 06, 2011, 07:19:31 PM »

Offline noman75

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #44 on: July 06, 2011, 11:02:14 PM »
ito na  sis noman DL  nyu  ;D

-->> http://www.4shared.com/file/GGWHZ-4I/repair_guide_of_lcd_monitor__s.html
passcode: sttm

regarding sa exact value ng resist. nasasainyo  na  yun... bastat pag-aralan  lang  mabuti ang flow ng circuit...

di ko pwedeng  banggitin alam  nyu na...
we have  the same protocol na sinusunod  ;D 

bastat dalawa  ang pwede  gawin  jan kong ayaw nyung  gumamit ng external ccfl driver... cut mu ang input ng inverter circuit o mismung sa oscillator ic ka magsimula at maglagay ng resistor at mag insert ka  ng  signal para mag saturate ito ng tuluyan na hindi  na iinterrupt ng protection ckt.

o hanapin ang feedback at tanggalin. palitan ng trimmer at dayain ang prot. ng tuluyan mabulag xa  na  di  pa  mahina ang ccfl  mu ;D



gudlak.



Tsalamat ng marami sis ultra,, magagamit ko rin to.... +1 puntos sayo   ;)
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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #44 on: July 06, 2011, 11:02:14 PM »

Offline Vhelt

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #45 on: August 07, 2011, 09:50:51 PM »
Galing talaga ni sis ulrasonic salamat....+1
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Offline J@M

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #46 on: August 08, 2011, 01:21:44 AM »
Makitambay nga d2 sa LCD.
Don't Give up

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Re: Samsung Lcd monitor backlight shutsdown SyncMaster 740n
« Reply #46 on: August 08, 2011, 01:21:44 AM »

 

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