Screen is blank , but I have sound , If I shine flashlight onto screen I can see images , enough to try and set control settings

SOURCE: dell E172FP shows image for one second

There is a loosing on the Display portion of its circuit, there could be a problem in the Power Supply too. Will need to get it fixed from some repair shop, or if you are ready to get the list of tools, then I can guide where exactly you should try to solder it, or check the desolded items by the DMM (Digital Multi Meter)

SOURCE: see it with flashlight but screen black otherwise

Hello,

It sounds like you have a monitor with a common problem, this series of Westinghouse monitors are known to have this issue. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of he monitor. When the capacitors blow out they also damage the driver MOSFETs. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts, replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. I am putting together a step by step repair guide for this series of LCD monitors, it should be up by 07/11, check my web site for the guide. Repair parts kits are also available for $16.95 If you don't want to try the repair yourself we offer a repair service for $35 plus shipping. If you are not going to repair it we will buy it from you for parts, we pay $30 for dead/as-is units.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

SOURCE: After you turned it on and the screen blacked out

Hello,

It sounds like you just have a bad backlight power supply. Go to our web site at: www.ccl-la.com We have repair guides for many models of LCD monitors and the 204B guide should also work for your unit.

I hope this helps, If so please rate our solution.

Buddy
Corporate Computer
www.ccl-la.com
[email protected]

SOURCE: hp w2207h screen in blank but flashlight shows icons are

The power supply-inverter board is probably at fault. Remove the back cover and locate the standard ac power cord connector. The board that the power input connector is soldered to is your power supply - inverter board. Check the electrolytic capacitors on the board. They probably went bad. A visual inspection is usually enough to find out which ones are bad. They will be either bulging or cracked at the top and leaking fluid. I usually replace all of the capacitors that have the same rating whether they look bad or not. Will save you another repair later. If the caps don't look bad, you can take the board to your local tv repair shop and have the caps checked with a esr tester. It's more accurate and they can be tested with the caps in place. Hope this helps.

SOURCE: image set up of screen is only half of the monitor

If you v-size is already at 100% then the issue is with the picture being sent to the monitor. Based upon what kind of input you have for the monitor there is a number of different ways to fix this. I will assume you are using the monitor with a desktop computer. If this is for XP, then there is a simple fix as follows, adjusting your display properties:
Right-click on your desktop background and then click on "Properties" this will open up a new window. Select the "Settings" tab, then drag the green arrow in the "Screen Resolution" field to the desired setting. Since you have a "widescreen set-up" you more than likely have a resolution where the first number is about twice the second number...they should be close to even to have a square image (bigger numbers show more detail than smaller numbers).
Hope this helps!