no picture on lcd

guruofgentoo · 8th November 2007, 09:10 PM

Just got an old Kogi monitor (backlight pretty much non-functional) and it had a picture. So I took it apart to play with it and now, no picture. First time I plugged it in after dismantling, with the connected components on the table (no shorts, checked for that), thought I smelled something, saw a small whiff of smoke so I unplugged it...
Ever since then, no more smoke, no more smell, no more picture

I don't see any scorches on the boards, and the power led stops blinking when I plug in a source.
Anybody have any ideas of things I missed?

verbose mustafa · 19th November 2007, 05:06 PM

Was the back light plugged it? I once burned a hole in my finger nail touching the transformer for the back light, made a nice burning smell. That might be the problem with no back light. Did you remove any films like the polarizer?

guruofgentoo · 20th November 2007, 03:56 PM

Yes, it was plugged in, but lack of backlight wasn't an issue; there's just no picture on the panel itself. I didn't remove anything from the panel.

The backlight was out when I got the monitor; it's sitting on an OHP for lighting.

verbose mustafa · 20th November 2007, 04:36 PM

did you verify it has a picture before tearing it down?

8th November 2007, 09:10 PM	#1
guruofgentoo diyAudio Member Join Date: Nov 2007 Location: Louisville, KY	no picture on lcd Just got an old Kogi monitor (backlight pretty much non-functional) and it had a picture. So I took it apart to play with it and now, no picture. First time I plugged it in after dismantling, with the connected components on the table (no shorts, checked for that), thought I smelled something, saw a small whiff of smoke so I unplugged it... Ever since then, no more smoke, no more smell, no more picture I don't see any scorches on the boards, and the power led stops blinking when I plug in a source. Anybody have any ideas of things I missed?

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19th November 2007, 05:06 PM	#2
verbose mustafa diyAudio Member Join Date: Nov 2002 Location: Massachusetts	Was the back light plugged it? I once burned a hole in my finger nail touching the transformer for the back light, made a nice burning smell. That might be the problem with no back light. Did you remove any films like the polarizer?

20th November 2007, 03:56 PM	#3
guruofgentoo diyAudio Member Join Date: Nov 2007 Location: Louisville, KY	Yes, it was plugged in, but lack of backlight wasn't an issue; there's just no picture on the panel itself. I didn't remove anything from the panel. The backlight was out when I got the monitor; it's sitting on an OHP for lighting.

20th November 2007, 04:36 PM	#4
verbose mustafa diyAudio Member Join Date: Nov 2002 Location: Massachusetts	did you verify it has a picture before tearing it down?