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Re: white screen on veiwsonic vg700b
Usually a completely white screen is an indication that there is no video signal being fed to the panel from the controller. For instance, if you take a working LCD monitor and just disconnect the video cable that goes to the LCD panel from the mainboard, it will turn on and off just fine, but it will light up bright white.
So, there seems to be an issue getting the video signal from your logic board to the panel. This can be caused by a bad cable, a loose connection, a bent and/or shorted pin (from plugging it in wrong), a bad logic controller chip, or a blown fuse/component on the LCD's circuit panel (PCB that runs across the top of the back of the LCD panel.)
Hope this help!
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Yes. It probably is, but you need to take the monitor to a specialized workshop to check the buzzers and all the speaker components. It is not a thing to do it alone at home.
If you need further assistance or have further questions please leave a comment.
First make sure that you are using the mini stereo male phome jacks on both ends, one end is connected to the Green audio line in of the monitor, the other end should be connected to the Green audio line out of the PC, also need to set the volume controls at the PC and the monitor, starting at 1/2 level. You can also verify that the monitor amplifier is wprking or not by feeding it with an MP3 player or some kind of audio source to see if you do get the sound OK.
Is this information from LCDPARTS.NET? I always remove the old lamp assembly and take an actual measurement of the lamp dimension before I place the order. The diameter is correct, but you should measure the length of the lamp, I know LCDPARTS.NET does give you some idea how to estimate the lamp size.
Are you sure that the lamp is bad, the common symptom of bad lamp is that it has pinkish light color wwen it first start up and slowly turning to normal white color light after warm up.
The Viewsonic VX2235WM has a known issue with the power supply going
out. The flashing power light or not turning on is the classic symptoms
of this issue. Check out our web site at: www.ccl-la.com. We have a
step by step repair guide posted that will guide to doing the repair
yourself. It involves changing a few capacitors on the power supply. If
you can solder then you should be able to do the repair yourself. If
you don't want to do the repair we do offer a repair service for $35
plus return shipping. If you have any additional questions just let us
know at: firstname.lastname@example.org
I hope this helps, if so please rate our solution.
Open the monitor, examine the circuit boards. Look for small components that look like small cans, these are capacitors. If you see any that look bulged on top, then your problem can probably be solved by replacing these. Check out the following sites;
there's an internal hardware problem in your lcd monitor - cold soldered / defective electronic part/s. I suggest to bring the unit to an authorized service center for proper diagnosis & fix the problem. best regards
Often, problems such as this is indicative of a failing capacitor in the 5V internal regulator section. Most capacitors uses a wet dielectric that dries out after some time due to heat buildup. In some instances, most of the capacitors would also fail ESR test. Additionally, you may want to check the external power supply if it is putting out the correct voltage as indicated in the reverse of the adapter box.
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.
This is a generic symptom that could happen to any LCD
The following is a generic answer applicable to most.
The most possible causes are bad capacitors or a bad
Open the unit and check to see if any of the capacitors in the power supply or
other boards look domed or vented on the top.
Replace any capacitors accordingly. Use the same value capacitors. Most often,
1000uF 16V or 25V, 470uF at 16 or 25V, 220uF at 16V or 25V.
If this doesn’t solve the problem, try checking the surface-mount transistors
on the inverter board that run the lights. Some times these transistors go bad
and can cause the power to cycle up and down. Check the area for any cracked or
overheated ceramic or mylar capacitors.
Don’t forget to check for caps on the main board. Some times these boards are
overly simple and only have a couple of caps, but other times they are teaming