Help troubleshooting LCD monitor - Electronic Circuits Projects Diagrams Free

speakerguy79 · 12th June 2008, 11:18 PM

My Dad's >3 year old and just out of warranty monitor developed a problem. He said that there were vertical lines that were 'out' (I assume he meant appeared dark) running on the left side of the screen. He said the rest of the screen was fine, just that some lines on the left side weren't working.

Any idea what may have caused this? I am hoping it is just some drive circuitry or something I could replace.

speakerguy79 · 12th June 2008, 11:36 PM

NM, it must have been a bad cable or something. I hooked it up to my machine and it worked fine.

Yay free 20" LCD for me

He'd already replaced it by the time I got to fiddling with it today.

**Nigel Goodwin** · 13th June 2008, 10:17 AM

Most comon problems are low-ESR electrolytics, often you can see the tops have domed.

speakerguy79 · 13th June 2008, 08:42 PM

OK, it appears the problem is intermittent.

There were greenish-blue vertical lines alternating every other pixel for about 1" width of the monitor screen near the left edge.

I'll pop it open to check for caps.

speakerguy79 · 13th June 2008, 10:35 PM

Well, let's just say they don't exactly make those to be user-serviceable.

I couldn't find any signs of any component damage. It's in the garbage now. Ces't la vie.

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Similar Threads
Thread	Thread Starter	Forum	Replies	Latest
Troubleshooting	zachtheterrible	Micro Controllers	22	5th November 2005 03:39 PM
TROUBLESHOOTING	ODIN'S DEN	General Electronics Chat	4	26th May 2005 02:52 PM
TROUBLESHOOTING	RONALDINO	General Electronics Chat	2	1st April 2005 08:04 AM
Troubleshooting...	nerosrevenge	General Electronics Chat	8	15th October 2004 11:13 PM
amp troubleshooting	inkedallusion	General Electronics Chat	2	25th December 2002 04:13 PM

12th June 2008, 11:18 PM	(permalink)
speakerguy79	Help troubleshooting LCD monitor My Dad's >3 year old and just out of warranty monitor developed a problem. He said that there were vertical lines that were 'out' (I assume he meant appeared dark) running on the left side of the screen. He said the rest of the screen was fine, just that some lines on the left side weren't working. Any idea what may have caused this? I am hoping it is just some drive circuitry or something I could replace.

12th June 2008, 11:36 PM	(permalink)
speakerguy79	NM, it must have been a bad cable or something. I hooked it up to my machine and it worked fine. Yay free 20" LCD for me He'd already replaced it by the time I got to fiddling with it today. Last edited by speakerguy79; 12th June 2008 at 11:36 PM.

13th June 2008, 10:17 AM	(permalink)
Nigel Goodwin	Most comon problems are low-ESR electrolytics, often you can see the tops have domed. __________________ PIC programmer software, and PIC Tutorials at: http://www.winpicprog.co.uk

13th June 2008, 08:42 PM	(permalink)
speakerguy79	OK, it appears the problem is intermittent. There were greenish-blue vertical lines alternating every other pixel for about 1" width of the monitor screen near the left edge. I'll pop it open to check for caps.

13th June 2008, 10:35 PM	(permalink)
speakerguy79	Well, let's just say they don't exactly make those to be user-serviceable. I couldn't find any signs of any component damage. It's in the garbage now. Ces't la vie.