Viewsonic VX2035WM Turns on for a few seconds then goes black

[Agent24]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Maybe the ones on the logic board are stuffed too.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

But i replaced all the caps except one i think...........the only caps i did not replace were those on the logic board.

[kaboom]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Is that picture before-recapping?
What are the red/brown Panasonics? A new variant of FR?

Those bastard Hermeis really piss me off! They depend on the 'bean counters' doing parts spec'ing going "ooh- it's got the T-vent, it must be a good cap."

I got your solution right here... in fact, I've nailed the problem.

Welchs, don't kid yourself by pretending that 'software fixes power supplies.' It's possible that the scan format was changed in that INF reinstall, reverting back to 'less demanding' settings. You then squeezed more time out of it before it acted up again.

-Paul

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

I know what you mean. THis monitor seems kinda flakey i will let you guys know if there are any changes.

[Agent24]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

I hope that fixes it although I don't really think your problem is the video card\drivers... I think it's the monitor itself.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

UPdate:
Finally got it working. Had to uninstall the on-board video drivers and then re-install them. Seems to be working fine now. Note: I did not install the monitor driver from viewsonic. Well, actually i did but it gave me the problem again where monitor should go blank. So i uninstalled that driver and every thing seems to be working.

[Agent24]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Never tried it in safe mode as I didn't expect it would make a difference. It seemed to me to be very much a monitor problem, however I could try it if you wanted.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

did your monitor work in safe mode?

[Agent24]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Sounds like a monitor I recapped a while ago...

22" Widescreen Chimei with dead CapXons, replaced all with Nichicon\Panasonic, works but randomly shuts off.

Seems to shut off faster the higher the brightness level, and there is a yellow patch in the top-right corner. Someone suggested it was old lamps going faulty and tripping the inverter protection.

Haven't looked into it further....

Is that picture before-recapping?
What are the red/brown Panasonics? A new variant of FR?

No, they are Hermei!! (see post #15) Bastards must be using Panasonic-style vents now....

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

i checked power save and screen saver options........all seem fine. now just doing google searches........i will keep you guys updated if i find anything out.

[jsog]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Five minutes could be power save. Check the screen saver or power settings.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

ok. i finally got my neighbors computer to try out the monitor.

Bad news. I set the native resolution to 1680x1050 and made sure the refresh rate is ste to 60hz. After about 5min it shuts off. Really weird. I am now going to boot up in safe mode and see if it works there.......my guess is it will since ALL computers i have booted up in safe mode with works with this monitor...........not sure what to try if it works in safe mode.

i did not replace any of the caps onthe logic board...........think i should have?

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Per your suggestions: I went into the display settings (advanced tab) and changed the monitor refresh rate FROM 75Hz .....TO 60Hz.

This seemed to fix the problem. Monitor does NOT go blank after a few min. But i will keep testing for an entire day and I will try the same thing on my neighbors computer. ONce i have done this if it still works then I will say its truely fixed. I will let you know the out come in a day or so.

THANKS!!!!!!!!!!!!!

[PlainBill]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Do you think it could be hardware related like maybe a bad cap on the logic board?

It COULD be, but I'd think a resolution / refresh rate incompatibility would be more likely. It also has the advantage of being readily testable. Note jsog's suggestion.

PlainBill

[jsog]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Make sure the computer is set to the native resolution of the monitor, 1680x1050 at 60 Hz.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

Do you think it could be hardware related like maybe a bad cap on the logic board?

[PlainBill]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

ok, i have some additional info.

When i boot my computer up in safe mode the monitor stays on .......with no problems. THis seems to suggest to me its a driver or some sort of conflict. But i have no idea what.

Any ideas?

This is grasping at straws, but the only thing I can think of is that the video signal is going to some not fully supported resolution. When operating the monitor can display it, but when in standby it doesn't recognize it.

PlainBill

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

ok, i have some additional info.

When i boot my computer up in safe mode the monitor stays on .......with no problems. THis seems to suggest to me its a driver or some sort of conflict. But i have no idea what.

Any ideas?

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

ok, so things are not totally fixed with this monitor yet.

Here is the strange thing.
I change the OnscreenDisplay from 15min to 60min and this "seems" to fix the problem on computer #1. However, when i gave the monitor back to my neighbor and again changed OSD to 60min............it DID NOT fix the problem. Computer #1 is newer than my neighbors computer and both are running xp-pro.

I am at a loss at this point. I brought my neighbors computer over and have been trying different settings but after about 10min the monitor goes to sleep and i cant seem to wake it up unless i turn on and off and even when i do this it only stays on for about 15 sec.

I foudn the service manual........and i am enclosing it here as well. ok fil eis to larage to post here so i am going to post web address where i found it.

[Welchs101]

Re: Viewsonic VX2035WM Turns on for a few seconds then goes black

yes, its before recapping. I forgot to take a new picture after i put the new ones in. I replaced all of the caps except the two that i have arrows drawn to .


also, i tried something onthe monitor setttings...........i reset the monitor to its "default" settings and things seem to be working well now. Now when the monitor sleeps the windows xp logo comes up on the screen and moves around the screen. before the screen would just go blank and i would have to turn it off and then back on to get the image to come back..........but it seems to be working fine now.

thanks.