View previous topic :: View next topic |
Author |
Message |
onewatt
Joined: 29 Jul 2006 Posts: 3 Location: uk
|
Posted: Sat Jul 29, 2006 3:05 pm Post subject: AOC lm700 tft flickering back light problem |
|
|
Hi group.
I have a aoc lm700 tft monitor which shortly after switch on starts flickering between bright and normal display. screen info is not affected but the display has horizontal bright patches accross display area. I guess its to do with the back light control and may be a cap going down. it resembles the effect of a flourescent tube starting and once started wont stop.
Any help would be appreciated.
Cheers
Chris _________________ Trying is the first step towards failure - Homer 1998 |
|
Back to top |
|
|
guest123 Guest
|
Posted: Mon Oct 30, 2006 3:44 am Post subject: Re: AOC lm700 tft flickering back light problem |
|
|
onewatt wrote: | Hi group.
I have a aoc lm700 tft monitor which shortly after switch on starts flickering between bright and normal display. screen info is not affected but the display has horizontal bright patches accross display area. I guess its to do with the back light control and may be a cap going down. it resembles the effect of a flourescent tube starting and once started wont stop.
Any help would be appreciated.
Cheers
Chris |
try to swap the power connecting to the inverter board from panel.
it might help |
|
Back to top |
|
|
cccp1954 Guest
|
Posted: Sat Oct 18, 2008 2:02 am Post subject: aoc monitor backlight problem |
|
|
i just found an aoc lm700 moitor myself, and was delighted when i turned it on and watched my boot-up screen - for a moment- then it went black!!! [the backlight went out] i could still faintly see the image in glorious black! my first thought, and i haven't ruled it out as a solution, was to put my own inverter power supply in and power up the backlight. this would probably work, but it may compromise the ability to control the brightness. [these little inverter are available at most places that sell computer components, and are uased to power cold-cathode (neon) tubes in custom computer cases, and usually cost about fifteen bucks] then i JUST for the hell of it, did some searching forums about this monitor, and found that there is a known defect in the MCU chip that will cause this malfunction. i then found several sites offering this chip on the average about$59usd, and as high as $89usd. so, that being said, if you're a 'hacker', and/or on a limited budget, you might try lighting up the backlight with a seperate supply [remember to disconnect the monitor's supply!], or, try the cip! |
|
Back to top |
|
|
|
|
|
You can post new topics in this forum You can reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum
|
eServiceInfo on FB -
Service Manuals Free Download -
Service Diagrams
Free TV Schematics Download -
HARDW.net -
Pinout Master -
Jabse Service Manual Search -
Jabse.InK -
onTap.bg
SnimkiOt.com -
Poblizo.com : пътешествия
Latest Service Manuals :
CTV570 Roadstar • 2n3055 mj2955 Motorola • SGH-X670 service manual Samsung • spec LG • gateway nv59 Gateway • 33712 Flex Wall Mount A4 DRUCK 28 a b • infanswr Dell • Panel CHIMEI INNOLUX N121I6-L02 0 [DS] . • DesignJet ColorPro CAD HP • Czeija 201 CZEIJA •
|