Having problems with your ViewSonic VA720 17" LCD Flat Panel Monitor ?

Powers on/off quickly

\015 I bought this monitor at a swap meet for $25... naturally I'm skeptical about their warrantees. Alas, the thing doesn't work. The green LED comes on, and automatically powers on, then the picture warms up and displays a beautiful picture for about half a second, then turns off again immediately and restarts the process. I thought the power button might be stuck, but it doesn't seem to be a mechanical issue. Should I throw this junk away and cut my losses, or is it salvagable? Thanks!\015

Answers :

Hi,\015\012\015\012I am of the opinion that the LCD is reasonably repairable. It would seem that something needs repair/replacement in the inverter section of the LCD. This is where the power to the backlight comes from. More often than not, the defective components are capacitor(s) that have lost its capacity to hold a charge, burst, swollen or lost its oil film separator. They are relatively inexpensive and should be be easy to replace. In some cases, it may just be a component cold solder which would require re-heating; connection that heats up because they are loose or at worst a CCFLamp that is at the end of its life.\015\012\015\012hope this be of some help/idea. Pls post back how things are or should you need further information.\015\012\015\012Good luck and kind regards.
Repair Help & Product Troubleshooting for ViewSonic VA720 17" LCD Flat Panel Monitor

Tips for a great answer:

- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.

Suggested Questions/Answers :

Acer laptop shut of during power outage .


From the Acer website:\015\012\015\012\015\012\015\012Product Notebook \015\012\015\012\015\012\015\012Issue Power Issues or Will not \015\012Boot \015\012\015\012\015\012\015\012Solution \015\ ... Acer Aspire L100 PC Desktop

Hi,could some one walk me through setting up my Billion modem wirelessly to my Dell Desk top running XP home. I get confused with firewalls,LAN settings etc Ethernet cable is being used at the moment. Do you need drivers etc


I am not familliar with that brand, so I do not know if it is a cable/dsl modem, a router, or a combination of the 2. I will assume it is the cable or dsl modem since you said modem.The thing we need to do first is give you a basic unders ... Dell PC Desktops

I have an HP Pavillion dv9500 laptop. After shutting down, all the keyboard lights to the right of the power button stay lit. This shows the power is not shut off but should be. Any solutions?


The buttons to the right of the power button are associated with the quick play program that runs independently of any operating system. That means if you want to watch a movie or listen to music you can hit the cd or dvd button and the system will p ... PC Laptops

Compaq R4000 Power Issue


I have a r4010US. I was having the same exact problem with my laptop. It would only charge if I the power cord in just the right angle, it would turn off if moved, and it was driving me nuts. I bought a new power supply off eBay and it didn't work ... Compaq Presario R3000 Notebook

Gateway M460E Wont power up


That typically indicates a powersuplly malfunction (not providing enough power) or, more likely, a motherboard issue. \015\012\015\012The best way to rule out the first part, which is the easiest, is take it to a local repair shop or radi ... Gateway 400E (400EB) PC Notebook

Bad power board Planar PL2010M


There is a supplier of power boards online, you can google them with numbers from the board but I don't suggest using them. Look for information on the company also. I've seen a lot of complaints for this "international" company.\015\012 ... Planar PL2010M 20" Flat Panel LCD Monitor

Power Up Failure on ASUS P5N-E SLI


Thjos led lights are straight up fact......for thos that are not computer literate....dummy lights, wheather the hardware they signal for is operative or not, on the mother board they still get power, thos dont help in i dentifying problems, it's the ... Velocity Micro ProMagix E8500 Notebook

Flashing Charging Light on AC Power


Shortage on the motherboard, needs new motherboard. ... Toshiba Tecra 9100 Notebook

Power light on front of computer is flashing - quick blinks


Most desktops require you to hold the off or power button down for at least 5 seconds, or more, before it will actually turn of the power. If you don't you won't get the desktop to turn off properly and when you try to turn it on again, you will get ... PC Desktops

I have an HP Pavilion Entertainment PC and have two questions. Very often, I cannot turn on the computer with the power button. To be able to use the computer, I must turn it on with the Quick Play feature. Secondly, there are times that when using the computer, it will go into hibernation mode. To get back to the program, I must then wait and press the power button.


First off the problem with starting from the power button the there is a small flat cable that goes from the motherboard to the start button itself. I runs under the keyboard right about to the left of the touchpad and these cables do not have a lot ... HP Pavilion dv9000z Notebook

Hi, I've been given a hp compaq nx9010 notebook computer which works perfectly except the audio mute button and LED don't work at all. The up/down buttons work fine. What could be wrong? The switch feels OK and has a good 'click'. My background is in electronics so I should be competent to fix this if it's a hardware problem. If you have any thoughts I would be very grateful! Even better could someone email me a service manual please?


The ribbon cable to those quick buttons may be broken. I've seen that happen more than once. the only way to test it is to remover the battery, Take out the screws in the battery compartment that hold down the Power Strip & Quick Button strip. Fl ... HP Pavilion dv6000z Notebook

Windows wx start up failure


The shut down caused a system glitch. You will need to run a system repair with your recovery or operating system disc. Rare, but occasionally, the hard drive crashes under these circumstances and will need to be replaced. Usually if thi ... Toshiba Satellite A35-S159 Notebook

My hp ez4400 starts up but quickly shuts down ,


There could be a problem with the battery. A fast check to determine whether you have a problem with the power\015\012adapter, power cord or the laptop's battery is to turn off the laptop,\015\012remove the battery, connect the power adapter, turn on ... HP PC Laptops

Hard drive not found on my sony vaio vgn nr10e/s


The problem is being caused by a Missing Seek of the HDD controller to the HDD drive itself. Many times this can be caused by the drive not being shut down properly when you turn off the PC or when it is placed into sleep mode.Really wha ... PC Desktops

Lg flatron w2234s monitor is flashing ??


HI,\015\012\015\012thank your for choosing Fixya.com\015\012\015\012go to control panel and look power option.\015\012\015\012Go to power scheme\015\012Select Turn Off Monitor "20mins"\015\012Select tur ... LG L1932TQ LCD Monitor

HP DV6917cl Pavilion laptop Quicklaunch lights will not turn off


Hi,From what i can remember with HP laptops there are two ribbon cables that rup up the left hand side of the laptop which both look the same. One to the power button the other to the LED's and hot keys on the keyboard bezel (plastic stri ... PC Laptops

Does not power up


It's a dreadful way to start a day - you press the power button on your computer and nothing happens. Do not fear because all may not be lost! Follow these simple steps to determine why your computer won't turn on. Note: It is very import ... IBM ThinkPad T22 2647 Notebook

Monitor not coming on - Packard Bell Easynote R4650


It's a dreadful way to start a day - you press the power button on your computer and nothing happens. Do not fear because all may not be lost! Follow these simple steps to determine why your computer won't turn on. Note: It is very import ... HP Pavilion a305w (DM181AR) PC Desktop

Computer Restarts. Okay, Well I have just bought a PC possible 4 years old. Runs perfectly, and I have heard it has been updated (Don't know what from) to 80gb HD, and 1gb RAM. The computer kept restarting by itself every 15 minutes when I first got it (Yesterday), and today it takes up 2 an hour to restart. It just clicks and the screen goes black and loads up. Please Reply Quick!


-- Remove any recently installed maliciously software/add-on or any \015\012other application or toolbar. Sometimes there occur software conflicts \015\012and the Windows causes computer to randomly restart.-- Try to cool down your PC as the ov ... E-Machines eMachines Desktop PC

Monitor turns on then off quickly


From your description of the issue, the LCD and or hte inverter has failed. If less than a year old, contact Princeton Digital for warranty repair, if outside 1 year, it is likely cheaper to replace than repair ... Princeton Digital Computer Monitors

Hello I am searching for a instalation disc because my external harddrive Hd-D1-U2 doesn't work on my laptop(vista). can you help me? Melvin


XP SP#, VISTA and win7 dont normally require drivers for external hard drives\015\012\015\012One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though n ... HP Pavilion dv9000z Notebook

Compac Evo D300v and Emachine W3650-usb do not detect devices


\015\012One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though not always)A few things to check but assumes USB and Windows for other interface ... PC Desktops

While plugging my pendrive in system the system gives me an error that your pen drive is multifunctioned windows is not able to operate it


\015\012One or more of the hints below will probably sort out most USB problems with most USB portable / external hard drives and OTHER devices (though not always)A few things to check but assumes USB and Windows for other interface ... Intel PC Desktops

Nx 6110 boot up issue


None of the above. Sorry. All those "solutions" are "shooting in the dark". There is a definitive method of determining the problem here, without guesswork.The "HP screen" you speak of is an "advertising mask" governed by the "quiet boot" ... HP Compaq nx6110 PC Laptop

Monitor turns on then off quickly


... Samsung SyncMaster 750S Monitor
  • Start your question with What, Why, How, When, etc. and end with a "?"
  • Be clear and specific
  • Use proper spelling and grammar
all rights reserved to the respective owners || www.electronic-servicing.com || Terms of Use || Contact || Privacy Policy
Load time: 0.3951 seconds