Display problem with ViewSonic VX1962wm 19" wide monitor
Hi. I'm having terrible problem connecting the ViewSonic VX1962wm 19" wide monitor on ASUS EAH 4670 512mb DDRIII graphics. Display will not accept any display driver software. When I install drivers that came with the monitor picture is completely black after the restart although you can hear the windows is working properly(Vista ultimate 64). When I install the ATI Catalysit driver (tried newest as well as the ones provided with the graphic card) hundreds of black horizontal lines apear throughout the screen. All components are brand new. These things happen on both connections (DVI as well as VGA cable), even considered pluggin them both in, but i'm not sure what can happen if I do that. I have assembled atleast 10 of amd-ati based computers, and installed operating systems and everything that goes along, without any serious problems, that's why i'm puzzled even more with this one, so any advice, suggestion or hopefully solution is welcome!
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The Acer p191w uses the same power supply as the Viewsonic VX1962wm that your problem is a well known issues with that power supply. The filter capacitors go out and that causes the power supply to shut down within a few seconds. The monitor is easy to repair, you will just need to replace the bad capacitors on the power supply board. Here is a link to a repair guide for the Viewsonic VX1962wm and the information will be the same since the boards are the same in both units.
Its the dynamic contrast ratio (DCR) that dims the display when dark images are displayed.
For my VA1926w, pressing the right most button (up arrow), enables or disables DCR. Keep this disabled.
Let the unit cool down for 30 min., give proper ventilation because your processor have a heat sensor, once reached the peak temp the unit will automatically shuts off. Keep away all the obstruction from your vent.
Let me know if the symptom is still there...
Thanks for using fixya.
That's right, the problem is related to inverter, but source of it - backlight lamps (if you see an image for fractions of seconds) or MOSFETs (if you see an image for few or more seconds). Image shows up, that means inverter starts, but then goes off because inverter controller turns into protection caused by something. Checking lamps is not that hard. Disconnect all cables coming from the screen and remove chassis with PCBs, so you will keep the display itself only. Next, at the edge where high-voltage wires are coming from, there you will see tiny philips screws, take them off. Then gently and very straight pull lamps assembly off the display, one and then another. If lamp is bad you shall observe contrast black ring or black dots near to the electrodes. Bad lamps must be replaced, you can buy them on ebay, for instance, just search CCFL 19". Or, if you don't care about total brightness, you can substitute faulty lamp with 27 pF 3kV capacitor, soldered across appropriate HV-connector on the inverter board - this will work also.
Hi, There could be a problem with your display card settings or the display card itself. If you are using Windows operating system, make sure that you have the monitor driver installed for that specific monitor. This is to ensure that Windows only allows settings for which your particular monitor was designed. Let me know if I can assist you any further regarding this. Best wishes, Graemevm