Fixing ViewSonic VX2245wm 22 inch LCD Monitor.

 Fixing ViewSonic VX2245wm 22 inch LCD Monitor.

Being prone to all kinds of fixing, I recently offered to attempt to fix my running friend Brian’s no longer working 22″ LCD (Liquid Crystal Display) monitor – no picture…
He gave it to me on the way from one of our runs and when I found time a bit later I fixed it. This is my second successful fix of LCD monitor. So, if you want to learn how to do it yourself, read on!

I. Examining device, determining the problem.
There could be different problems with LCD monitors – capacitors going bad (most common), back-lighting tube light bulbs burned, PCB board (Printed Circuit Board)problems, etc.
1. So, first thing is to turn the monitor on and check it. I was glad that indicator light on the front of LCD lit up, indicating that power circuit is most likely okay.
2. Checking the screen with bright flash light showed no picture, telling me that back-lighting tube light bulbs are most likely okay too.
3. Then, next thing to do is to disassemble the monitor and examine PCB boards and its parts. If you are not sure how to do it, search on YouTube for your model, and usually video will be there!
3.1 Base must be detached first, by removing two plastic covers and unscrewing 6 screws. Keeping track what screws came from and store them organised!

Detaching two plastic covers of the base unit, one on each side.

Detaching two plastic covers of the base unit, one on each side.

Detaching Base unit by unscrewing 6 screws on the base.

Detaching Base unit by unscrewing 6 screws on the base.

I kept screws organized by keeping them in sections of covers.

I kept screws organized by keeping them in sections of covers.

Finally, the base unit is detached. It has USB ports, mike, headphones connections etc., but I did not have a separate power supply for that, and was unable to test it. It is completely electrically separated from Monitor.

Detached base unit.

Detached base unit.

3.2 Disassembling the monitor, by first unclipping plastic trim around the perimeter of Monitor by using a patty knife and flat screwdrivers. Most nerve wrecking part, as it’s always scary to break the plastic… I noticed that someone was trying to take it apart before me and damaged the trim slightly, fortunately it’s invisible from the front.
3.3 After the trim unclipped, the back cover is removed as well.

Removing back cover by unscrewing back screws.

Removing back cover by unscrewing back screws first.

Removed back cover after removing front trim and unscrewing back screws.

Removed back cover after removing front trim and unscrewing back screws.

3.4 After the covers gone it’s time to get to PCB boards by removing the metal cover.

Removing the metal cover over the PCB boards.

Removing the metal cover over the PCB boards.

PCB boards exposed. Must disconnect them and remove from the monitor completely.

Drilling out the broken bolt on digital monitor connector. PCB boards exposed. Video Board is looking fine, but Power Supply board must be disconnected and removed from the monitor completely because it has bulging capacitors.

3.5 PCB Power Supply board is disconnected and removed from monitor completely. Bulging capacitors immediately noticeable. Obvious and most common problem! Hopefully it’s the only problem. Will see.

Power suppy board has 6 capacitors bulging - notice itat the ends of black CapXon capacitors, where crossed lines located.

Power supply board has 6 capacitors bulging – notice it at the ends of black CapXon capacitors, where crossed lines located.

Power Supply board removed from Monitor.

Power Supply board removed from Monitor.

3.6 Problem is identified – 6 failed capacitors on Power Supply board. Good thing that they did not burst and did not leak, because electrolyte inside them could damage the board! These are parts of the board that work as a batteries, holding the charge and giving it away when PCB needs it. Now they need to be replaced! There is only one (!) shop in Greenville, SC where such parts can be ordered, and it happened to be a few blocks from my house – Wholesale Industrial Electronics at 2215 Old Buncombe Rd. Greenville, SC. 29609 (Phone (864) 235-8334), or it’s possible to find parts on eBay.
4. Ordering a set of capacitors on eBay for ~ $10. Did it this way, because there was a whole set offered for the monitor with exact specifications on capacitors. Also, just in case made a schematic of location and specs of capacitors on board. Better safe than sorry! 🙂

Schematic of location and specs of capacitors on board. Just in case!

Schematic of location and specs of capacitors on board. Just in case!

5. Unsoldering and removing bulged capacitors from Power Supply board. I have a special unsodering iron with a suction bulb to do it easier, but regular soldering iron would work as well.

Unsoldering (soldering out) of bulged capacitors.

Unsoldering (soldering out) of bulged capacitors.

All six capacitors soldered out and now need to wait for new to be delivered.

All six bulged capacitors soldered out. Board ready for new caps.

All six bulged capacitors soldered out. Board ready for new caps.

II. Fixing the LCD problem.
6.) Soldering in new capacitors, watching to match polarity of them after eBay order delivered!

New capacitor set with fuses delivered from eBay!

New capacitor set with fuses delivered from eBay!

Putting in new capacitor according to specifications and polarity!

New capacitor put in according to specs and polarity!

New capacitor put in according to specs and polarity!

Bending the leads of new capacitor to keep it in place.

Leads of new capacitor are bent to keep it in place.

Leads of new capacitor are bent to keep it in place.

Soldering in new capacitor leads by regular soldering iron.

Soldering in new capacitor by using regular soldering iron and Lead-free solder.

Leads of new capasitor are soldered to board by regular soldering iron.
Leads of new capacitor are soldered to board by regular soldering iron.

After soldering and checking for secure attachment, excess of leads are cut off.

Cutting the excess of new capacitor leads off.

Cutting the excess of new capacitor leads off.

Soldering in of all new capacitors completed. If you look carefully you’ll see the different soldering of my style and the factory. 🙂

Soldering in all new capacitors completed. If you look carefully you'll see the different soldering of my style and the factory. :-)

Soldering in all new capacitors completed. If you look carefully you’ll see the different soldering of my style and the factory. 🙂

All 6 new capacitors are soldered in. No more bulging! Board is ready to be returned into the monitor. Old bulging caps are on display above the board.

All 6 new capacitors are soldered in. No more bulging! Board is ready to be returned into the monitor.

All 6 new capacitors are soldered in. No more bulging! Board is ready to be returned into the monitor.

7.) Replacing the Power Supply board back into the Monitor and  reconnecting all contacts.

Replacing the Power Supply board back into the Monitor and  reconnecting all contacts.

Replacing the Power Supply board back into the Monitor and reconnecting all contacts.

Putting the metal cover of the boards back on.

Putting the metal cover of the boards back on.

Putting the metal cover of the boards back on.

7.1) Accident… Not always everything goes smoothly… One of the bolts on digital monitor connector broke… Maybe I screwed it in too tight? Need to somehow remove it and replace.

Accident... One of the bolts on monitor connector broke... Need to somehow remove it and replace.

Drilling out the broken bolt on digital monitor connector. Accident… One of the bolts on monitor connector broke… Need to somehow remove it and replace.

7.2) Drilling out the broken bolt on digital monitor connector. It went thru all right, forced by the drill bit to go thru the tread quickly. Feuu-u, no major repairs here, just put in the bolt from my monitor! 😎

Drilling out the broken bolt on digital monitor connector.

Drilling out the broken bolt on digital monitor connector. Covered the monitor to prevent metallic dust from getting into components.

Broken bolt removed and replaced with one from my other monitor. Must be very careful during repairs to not break something else! 🙂

That damn broken bolt...

That damn broken bolt…

8.) Quick check to see if problem is fixed! Connected the monitor to an old computer that was close by and Ураа-а-а! Monitor is working – displaying the image! Remember those “WinDoze”? 🙂

Quick check with an old PC. Remember those "WinDoze"? :-)

Quick check with an old PC. Remember those “WinDoze”? 🙂

8.1) Finished reassembling the Monitor together in reversed order and reconnecting the base.

Final clipping back together of back cover.

Final clipping back together of back cover.

8.2) Final check of the Monitor after completed repair, by connecting it to my main computer with Linux Mint 14 (Ubuntu based) Operating System.

Final check of the monitor.

Final check of the monitor.

I let it run for a while and it works fine, but appears not very bright to me… It might be this particular model setting or something else is slowly going down? Or maybe it’s completely normal, as I just recently switched to LCD monitors.
Another thing is fixed and saved from landfill! Working fine! 🙂

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4 Responses to Fixing ViewSonic VX2245wm 22 inch LCD Monitor.

  1. Brian G says:

    excellent job Viktor!!

    • rohit patel says:

      i read your replace capacitors its very informative.i need info for vx 2245vm. model#vs 11349. my i pod works on monitor,green light is on but screen does not light up(no raster), please help me. my ph# 678 691 5434. or cell # 540246 5077, email. rohit1942@gmail.com.

  2. mike belaj says:

    We fixed our monitor works great also fixed TV and refrigerator all bad capacitors.

  3. david says:

    Hi, thank you for your excellent instructions. I too, had VX2245wm go bad (washed out screen) and pulled it apart using your help. I had bad caps as well and replaced them, unfortunately the screen is still washed out. Oh well! I tried!

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