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My viewsonic 715L1075-2-V board has gone i think i had to put a hair drier onto the backlight...
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Problem for ViewSonic VX715 (Black, Silver) 17" LCD Monitor
Monitor turns on then shuts off
I have a vx715 monitor and it will turn on for a few moments then it shut right off but goes black screen and I can't see anything, I have done eveything possible tried different screen res. bvut nothing happens I even opened iot up and unplugged all the wires thinking it would reset itself but nothing happens. what else could I try with this monitor I have?
Clarification Request
Posted by el mama on Feb 05, 2009
Many thanks to GATTEN for a clear and professional instruction to solve the problem.
This is THE solution.
El Mama
Posted by PCBuilda on Mar 22, 2008
Is your computer still on when your monitor goes black or is it rebooting at the time.
Same Problem
Apr 01, 2009
- ViewSonic VX715Model Nr. VS 10057 (MADE IN CHINA!)
Turns on for about 2 hours and then off. You have to rest it for 8 hours or so. The 1000 microFarad 16V capacitor is slight bulged.
- vcalvin74
Nov 04, 2008
- Big Thank you !I had the same problem with my Viewsonic vx715 monitor (2005). It was shutting off, in other words went black, after 3 seconds of viewing and then I had to turn it off and turn it on again to see an other 3 seconds of normal viewing on the screen. When it was black I could still see, with close attention that the display was still there on the screen but very, very black.
I opened my monitor like ''Tumlegutt ''discribed and solved my problem by changing a bulged capacitor of 1000uf 16 V as described by ''Guest'' (solution #3). I'm so happy ! My boyfriend did the soldering after having noticed the little bulge on the back of the capacitor and everything was solved. We bought a soldering gun to do that but it was worth the try. My monitor is saved from going to the landfill and no need to buy a new one. Big saving. Asking an expert of an electronic repair shop would have cost 100 $ so the only other solution was buying a new one. What a waste it would have been ! So thanks for your informations. Awesome !
Ibiza- Ibiza
May 05, 2008
- I have the same problem. Do I really need to open my monitor to replace something ?- smokmanBest Solution
posted on Jan 08, 2009
dd
yh
I just repaired four of these monitors. The Viewsonic vx715.
There was a common fault for all four monitors.
Procedure:
BE AWARE OF VOLTAGES INSIDE MONITOR !!
1. Take of small cover on the back of the pedestal.
2. Take of the pedestal (four metal philips screws).
3. Take of the bacside cover of the monitor, four black philips screws.
(The backside cover is mounted with clips, use a small screwdriver or something flat/small)
4. Take of the metal cover inside covering the power supply and the video card.
5. Locate the power supply, it's the biggest board with the biggest components.
6. Loosen this board, take it out.
7. Locate capasitor C922, it's a 16V 1000uF capasitor, replace it with one of about the same size.
8 Check soldering on L201 and L202. This is inductors, soldering might be bad.
9. Mount everything back again.
Hope this helps!
SF
yh
Comments:
Jan 08, 2009
- HiI just repaired four of these monitors. The Viewsonic vx715.
There was a common fault for all four monitors.
Procedure:
BE AWARE OF VOLTAGES INSIDE MONITOR !!
1. Take of small cover on the back of the pedestal.
2. Take of the pedestal (four metal philips screws).
3. Take of the bacside cover of the monitor, four black philips screws.
(The backside cover is mounted with clips, use a small screwdriver or something flat/small)
4. Take of the metal cover inside covering the power supply and the video card.
5. Locate the power supply, it's the biggest board with the biggest components.
6. Loosen this board, take it out.
7. Locate capasitor C922, it's a 16V 1000uF capasitor, replace it with one of about the same size.
8 Check soldering on L201 and L202. This is inductors, soldering might be bad.
9. Mount everything back again.
Hope this helps!
SF
Yes
No
Solution #2
posted on Aug 08, 2008
Guest
Rank: Apprentice
Rating: 0%, 0 votes
Rating: 0%, 0 votes
I agree with Tumlegutt. There can also be an issue with blown capacitors. I had the same VX715 monitor I bought with the same issues from a seller for $30. The display would shut down after 3 seconds and the screen was black. I used a flashlight on the screen and could still see the image. Right away I knew that the power supply wasnt the problem because if it was I wouldnt have an image on the screen. I also knew it couldnt be the backlights because it is highly unlikely that both backlights would be out at the same time. I narrowed it down to the inverter transformers. I opened the monitor and scanned them with my eyes. I also checked the backside of the board for dry joints. The soldering looked fine. I was still convinced that the issue existed in and around the inverter. I then scanned the board with my eyes and noticed 2 1000uf 16V bulged caps near the inverter side of the board. Lucky for me I had 2 esr capacitors of the same value made by Sanyo. I went ahead and removed the blown caps and soldered the new ones onto the board. I proceeded to reinstall the metal cover at the back and then I closed up the monitor.
I then hooked it up to my PC and powered it on. The monitor turned on and guess what...the screen stayed on! I tested this for 5 days and there were no issues. I already had a 19" Dell monitor so I re-sold the Viewsonic monitor 7 days later for $120. Not bad huh? I just saved a good monitor from going to the landfill.
Now back to topic, I suggest scanning the board with your eyes first. If you need to solder and you arent comfortable or dont know how to do it, I suggest sending your monitor to a professional or an electronic repair shop. Good luck.
I then hooked it up to my PC and powered it on. The monitor turned on and guess what...the screen stayed on! I tested this for 5 days and there were no issues. I already had a 19" Dell monitor so I re-sold the Viewsonic monitor 7 days later for $120. Not bad huh? I just saved a good monitor from going to the landfill.
Now back to topic, I suggest scanning the board with your eyes first. If you need to solder and you arent comfortable or dont know how to do it, I suggest sending your monitor to a professional or an electronic repair shop. Good luck.
Solution #3
posted on Mar 22, 2008
Find and replace the ccfl inverter board. Usually internal on the rear of the lcd panel under an aluminum shield.
srich
srich
Yes
No
Solution #4
posted on Jun 13, 2008
One thing you could try, does not cost anything.... Be aware that voltages might be present inside monitor also after turning off!!! Open monitor back side plastic cover, open metallic shield. Locate power supply / inverter board, take the board out so yo can inspect it (have to take off three cables and some screws). Locate the inductors on the inverter side of the board(they are round and you can see copper coloured wire). Check soldering on the backside of the board.
Have seen many vx715 monitors this with this fault. The soldering is bad, making symptoms as you describe.
Electr. Engineer SF
Have seen many vx715 monitors this with this fault. The soldering is bad, making symptoms as you describe.
Electr. Engineer SF
Yes
No
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