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  worth repairing? 
 
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Juan Pena May 08, 2014, 03:04pm EDT Reply - Quote - Report Abuse
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Hello all:

About a couples of weeks ago my Samsung syncmaster 2220wm started malfunctioning.

It may work perfectly for hours but then, maybe over night or a while after the screensaver starts displayinng or the monitor is turned off and then on, the screen is just all black and blank. The power light is on and off, menu does not display nor does the analog/digital connection message.

I leave it on and maybe after a quite few hours I see the analog/digital message on and I know I can then plug the cpu in and I get the display. Until it decides to stop working again.

I press all buttons, nothing happens. Rather, nothing happening is displaying as the screen is just pure black.

Should I bother having it fixed? Estimate is about $20.00 plus repair. It would probably be near $100.00 with everything. I can buy a new 24inch for a bit over that, though not a samsung monitor though.

Anybody has had such a problem? anyidea what it can be?

Should I just discard it and buy a new one?

Thanks in advance,


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john albrich May 08, 2014, 06:22pm EDT Reply - Quote - Report Abuse
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>> Re: worth repairing?
.
I had what sounds like an amazingly similar problem with an older LCD display. It ended up being the switch/button panel...which protrudes like a large bump from the rectangular bezel. Didn't have to replace anything. I took the display apart to point where I could access the button panel. Then disconnected the ribbon cable, cleaned contacts and what I could of everything else in the assembly, re-aligned and reseated what I could, etc. and operation returned to normal.

A different problem with some older "soft" switches is they used a conductive polymer as the button, but some of the older materials really degrade after a few years from plastic outgassing. You can end up with a jelly-like "gunk" that ends up getting contaminated and the jelly or particles interfere with the switch operations. In once case, I had a switch on a TV remote that would intermittently get "stuck" as though it was being pressed. It might act as though it was being pressed "on" for seconds, minutes...or days at a time. To clean the button assembly, I had to remove the "sheet" of buttons (a blue plastic flexible sheet with black "dots" on it (each "dot" corresponds to a button)), and thoroughly clean it with water and mild detergent (Don't scrub too hard, or with a brush with hard and/or sharp bristles, as the conductive "dots" may be damaged on some designs. In other designs, the entire sheet of material is made of conductive polymer...not just each "dot"...and is usually more resistant to local damage.). Then, using 90% medical-grade alcohol I cleaned the circuit board and particularly the copper patterns that the conductive "buttons" touch to complete the circuit...being careful to not damage any patterned plastic insulating shield and any protective insulating film (often a translucent green, brown, or black) on the circuit board. Then I let everything dry for a few days.

Dr. Peaceful May 09, 2014, 01:10pm EDT Reply - Quote - Report Abuse
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>> Re: worth repairing?
Juan Pena said:
...I leave it on and maybe after a quite few hours I see the analog/digital message on and I know I can then plug the cpu in and I get the display. Until it decides to stop working again...

For most PC monitors the front "power" switch is not a true on/off switch for power, but rather a soft switch which puts the monitor into a power save state. Some of the older Samsung monitors I've seen, have a true power switch in the back to actually cut the power from the monitor. Similar concept as to a PC's on/off switch in the front of the case, and the power switch in the back of the PSU.

I've experienced many times before that I had to cut the power to the monitor to reset it fully from corrupted / frozen state, either use the power switch in back (if there's one) or just yanked the monitor power cable. You should try that, if you haven't, to see if that corrects the problem right away.

As to what causes it, it's hard to say. May be it's hardware, something worn out like John mentioned. May be it's related to the firmware in the monitor that cause it to freeze, which usually can be fixed by cutting the power for a full "reboot". Some monitor may allow you to update the firmware. May be it's some sort of display settings in the PC, that gave the wrong V-Sync / H-Sync setting to the monitor and caused it to crash.

mothow May 12, 2014, 08:53pm EDT Reply - Quote - Report Abuse
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Edited: May 12, 2014, 08:56pm EDT

 
>> Re: worth repairing?
Id get a new monitor.Im sure you can fix that one but new monitors are really cheap now and have IPS and PVA panels and many other 8 bit panels.Heck you can get a 27' monitor 2560x1440 resfor less than $300 now shipped for free and have it in 3 days


you can OC this monitor 120hz vs standard 60hz like my HP ZR2740W

http://www.2560x1440monitor.com/index.php?route=product/catego...mp;path=59

ASRock Z97 Extreme 4 / i7 4790K / Corsair H80i / 4x4GB Crucial Ballistix Smart Tracer DDR3 1600 / 1TB Western Digital Caviar Black / 240GB Mushkin Chronos Deluxe SSD / 2x Evga GTX 670 FTW 2GB in SLI / Sound Blaster Recon3D Fatal1ty / Corsair HX1000w

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