Question about ViewSonic VA720 17" LCD Flat Panel Monitor

1 Answer

Help i have a e17t4 monitor and i have pluged it in to 2 computers same thing happens on both comps i pluged the monitor to power i get blue lite then solid greenand stays green i can turn it off and onat this point but when i pluge it in to the computerafter sitting awile it comes on normale and shuts off and you cant turn it back on un less u un plug it for a while and then it will do the same thing

Posted by on

  • crabguy Mar 11, 2008

    hey thanks bud it was very helpful as i am a very poor man on welfair do to heart i cant aford a new one . i think i fixed it but now lower one third of screen is gone there is a bunch of lines where you can see icons in vertical linesand they move with mouse i did notice a tear in one of the flaps that hang off the side of the lcd screeni think that might be the problem and if so is it fixable or mabe replace the lcd if not expencive lights look good there is some dark brown around one of the parts on the power baord but it looks more like heat done it not shurewhen i put it all back to gether it worked all bit i third on the bottom if its replace able? where ? if known ty for the help

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Brigadier General:

    An expert that has over 10,000 points.

  • Master
  • 6,966 Answers

Hi crabguy,

To my understanding, this is a common problem with some eMachine monitors (including the E17T4) since its production start sometime 2004/5.

Your particular concern could be due to several possibilities:
1. failing backlight - which is more often the inverter going bad therefore failing to supply the CCF Lamps. Additionally, the logic controller senses the "no lamp" condition and shuts the unit OFF. You could try using a flashlight to shine on the lcd front to determine if you have some semblance of your desktop/icons before the unit switches OFF.;
2. video board - which receives signals from the CPU as well as syncs the horz and verti freq. Failure would also sends an OFF trigger to the logic controller and again will shutdown the unit;
3. cold solder and loose connections - the components used are often frail and unfortunately not connected properly and/or the soldered joints are too thin. It would be to your advantage to re-solder most of the soldered joints specially those pins of the power components such as high wattage resistors, filter capacitors, transformers, diodes and regulator transistors/ICs;
4. most of the boards are chassis grounded using part of the trace connected through the holding screws. It would also be to your advantage to tighten the screws holding the boards so as to securely connect the GND trace of the PCBs to the chassis mounting points.
5. additionally, you may want to deep push the different connectors/plugs to their mates/jacks specially the main from the LCD panel itself, it's a bit of a deep-seat type.

Diagnosis and repairs would require familiarity with electronic components and circuitry, use of a DVM and a soldering iron. Should you not be comfortable going this route, perhaps you need to seek the services of a qualified professional.

If taking into consideration the cost of repairs, the down time and length of time to repair the unit, you might want also want to consider just replacing the unit.

Hope this be of initial help/idea. Pls post back how things turned up or should you need additional information.

Good luck and kind regards.

Thank you for using FixYa.

Posted on Mar 11, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Problems with my emachines monitor. I have an Emachines monitor as my second monitor E17T4 monitor. When the machine is on sometimes it is fine othertimes the screen goes black but the power light stays...


youmight remove your graphics and check the socket for dust restart your computer this should activate the found new hardware wizard
if you run an extended desktop this will tell you if the monitor has gone bad
use a vga lead to attach it

click start control panel display change display settings adjust resolution this may vary depending on your operating system you should a no 1 and a no 2 with detect and identify keep an eye on


the screen when you select the number tabs this may vary depending on your operating system when you select the no 2 tab this should be the extended desktop always click apply after making any changes
i have read some reviews on your monitor
So the ex-hubby calls me with his woes - his eMachines T3124 is having problems. Seems that when he cold boots in the morning it hits the "E" splash screen and then just goes to black screen. No bios boot screen, no boot to windows. Everything sounds ok though. After a few restarts it boots ok. So, first trouble shoot is to replace the 180w Bestec power supply with a salvaged 300w Hippro from my T6420 (which was replaced with a 500w) - the one I replaced the mobo on. Works great ... for one night. Next morning I get the frantic call - now he gets nothing after the "E" splash but white wavy lines, but the computer sounds like it's running fine. Ok - ok ... think, think. First thought was maybe the onboard graphics have gone, next thought maybe the mobo is going ....

What is the next thing we do after trying a known, good power supply? Try another working montior. I had him try using a trusty older CRT monitor and Wha-Lah! After less than 3 years the E17T4 LCD monitor had failed. Most recent crisis handled. This little incident has made him realize though that he needs to burn all his picture and videos to CD. Scared him to think he could have lost them. Today's reminder? BURN your pictures and videos now! You never known when something might happen. And eMachines monitors are ****.

hope this helps

Sep 30, 2011 | eMachines E17T4W 17" Monitor

1 Answer

I have a black e machines E17T4 monitor that suddenly stopped working, the power button does nothing when it's plugged in can it be fixed?


It might be able to be fixed but typically repairs on monitors are going to cost you more than a new one would. If it's still in warranty I would contact the manufacturer unless you purchased an extended warranty.

May 03, 2011 | E-Machines E17T4 17" Flat-Panel TFT-LCD...

1 Answer

The Screen is black no video. No respond on Power button. Blue power lite coms on after minut or tow it self and stil no video with blue PWR lite on.


That can be as simple as failed DC filter caps in the power supply, that will be the first thing to check, as you can see in my albums of failed VIEWSONIC and ALL brands of monitors.

Basic LCD monitor troubleshooting guide:

http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting

Failed TV, Monitors, Caps : http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague
Capacitor kits: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Please post back what you find.

Oct 31, 2010 | ViewSonic VX1935wm LCD Monitor

2 Answers

My monitor switches on but flicks off before the picture shows,power lite shows a constant flicker from green to orange ?


Start the computer (i suppose it's windows version) in safe mode (press F8 just before the Windows loading screen) and try to reduse resolution. The same thing happens sometimes just before the VGA card break down. Can you try with another VGA card, or plug the monitor at another computer?
Stelios

Feb 17, 2010 | Microsoft HannsG HU171D 17" LCD Monitor

1 Answer

My monitor goes blank. it comes back after i have powered it off for about 24 hours


Check for bad caps in the power supply first, look for caps with ulging top, post back what you see so we can guide you further, see example of failed monitors due to badc caps: http://s807.photobucket.com/home/budm/allalbums

Feb 17, 2010 | E-Machines E17T4 LCD Monitor

2 Answers

I shut down my computer at night. When I come back the next morning the computer is off and the monitor is in standby with an orange power light (so far so good). When I turn the computer on, the monitor...


that blue light show and error or faulty problem internally or there a problem with in the connection or computer but first check the makers website or manual for troubleshooting.

Dec 13, 2009 | LG L1932TQ LCD Monitor

4 Answers

My power light is on but the monitor is black. Is


your moniter is not broken your moniter's data cable is not correctly pluged.

Jul 30, 2009 | Dell E173FP 17" LCD Monitor

1 Answer

My monitor randomly turns off.


Most likely you have a bad INVERTER BOARD.

2nd in line is a burned out backlight fluorescent bulb.

Jul 02, 2009 | E-Machines E17T4 LCD Monitor

1 Answer

E17T4 monitor won't turn on


It could certainly be a fuse inside the monitor, although it's more likely to be an electrolytic capacitor. These kinds of repairs are possible but only by a skilled technician - with the right tools and knowledge. If your monitor is still under warranty, I recommend returning it to the manufacturer. If not, a TV or computer repair shop might be able to repair it, but it will probably be rather expensive.

The problem is probably localized in the monitor's power supply board, and a possible fix is to replace that board. If you can find another one you might be able to replace it and repair the monitor - but finding one might be difficult.

Jun 10, 2008 | E-Machines E17T4 LCD Monitor

Not finding what you are looking for?
ViewSonic VA720 17" LCD Flat Panel Monitor Logo

75 people viewed this question

Ask a Question

Usually answered in minutes!

Top ViewSonic Computer Monitors Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18297 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a ViewSonic Computer Monitor Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...