Re: LCD Monitor Backlight
Source: http://sci.techarchive.net/Archive/sci.electronics.repair/200906/msg00388.html
From: "Arfa Daily" <arfa.daily@xxxxxxxxxxxx> Date: Tue, 9 Jun 2009 12:57:17 +0100
"Tim Schwartz" <timhhk@xxxxxxxxxxx> wrote in message news:INrXl.1563$u86.1053@xxxxxxxxxxxxxxxxxxxxxxx Charlie wrote: My monitor is an LG L1932TQBF. as I was reading the screen the brightness flickered and the screen went dark. If I power down and then back up, I get a very brief well lit screen with "normal" text showing. It lasts less than a second. The power light comes on normally and changes color when a video signal is there. I have not had the need to get into the guts of an LCD monitor. What sort of precautions are to be observed when replacing the light(s)? I have fixed almost everything else electronic in the past. I have done CRT TVs, PC's, Microwaves etc. What I need is a road map before I open it up. Are there any good sites with directions and are there any preferred suppliers of replacements. I know I could just Google this but it is always better to get advice from someone with hands on experience. I could run out and get a new monitor, but as a retiree I have more time than money. Charlie Charlie, While I'm no expert on monitor repairs, from what I've read the problem is more likely to be with the lamp power supply rather than the lamp(s) themselves. They are often some sort of switch mode supply on a small, separate board that the lamps connect to. If you are lucky, you'll have bad capacitors, if less lucks, a bad coil or transformer. Regards, Tim Schwartz Re: LCD Monitor Backlight 1
Re: LCD Monitor Backlight Bristol Electronics
Yep, a valid point. Even so, if that proves to be the case, and it's not something readily fixable, the same parts site that I gave the links for, can supply replacement inverter boards to suit most monitors. Arfa

Re: LCD Monitor Backlight
Source: http://sci.techarchive.net/Archive/sci.electronics.repair/200906/msg00379.html
From: "Arfa Daily" <arfa.daily@xxxxxxxxxxxx> Date: Tue, 9 Jun 2009 00:55:37 +0100
"Charlie" <left@xxxxxxxxxxxxxx> wrote in message news:h0jvej$2e8$1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxx My monitor is an LG L1932TQBF. as I was reading the screen the brightness flickered and the screen went dark. If I power down and then back up, I get a very brief well lit screen with "normal" text showing. It lasts less than a second. The power light comes on normally and changes color when a video signal is there. I have not had the need to get into the guts of an LCD monitor. What sort of precautions are to be observed when replacing the light(s)? I have fixed almost everything else electronic in the past. I have done CRT TVs, PC's, Microwaves etc. What I need is a road map before I open it up. Are there any good sites with directions and are there any preferred suppliers of replacements. I know I could just Google this but it is always better to get advice from someone with hands on experience. I could run out and get a new monitor, but as a retiree I have more time than money. Charlie
Good source of parts and cross references here http://www.lcdparts.net/CCFL1.aspx and some "how to" stuff here http://www.lcdparts.net/howto/default.aspx Good luck with it
Re: LCD Monitor Backlight Arfa