Viewsonic VP150M Turns on but has horizontal "stuff" on screen

[Welchs101]

Hi,

I have this old LCD that has been sitting in the corner for a few years now. It has the following problem (see enclosed pics first).

The lcd will power on with no problem. The problem is that the picture seems to have "horizontal striations". Horizontal striations may not be the proper name but i could not think of anything better. If you know what this is called please let me know. See enclosed pics .....picture is worth a 1000 words.

Also, do you think this is fixable or not woth the time.

[Wizard]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

Take it apart and take a look at capacitors just in case.

Cheers, Wizard

[Scenic]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

i've had a 15" Hyundai LCD do this... all the surface mount caps were baked dry..

[alexanna]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

i've had a 15" Hyundai LCD do this... all the surface mount caps were baked dry..

I have had several monitors that have had a similar problem. the VGA cable was what I'd call hard wired to the monitor, Well being to lazy to pull the desktop out of its cubby hole each time I hooked up a extension cable to the computer and pushed it back into its cubby hole. Well it took four monitors for it to sink into my thick head that my extension cable was the problem.
Al.

[Scenic]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

this monitor had no hardwired cable. there was a female VGA connector directly soldered on the LCD controller board.
used the VGA cable that normally goes to my 2nd (cheapo) LCD to test the Hyundai. result is in the pic above..

the monitor ended up in the garbage as it was in pretty rough shape (both casing and panel), had tons of surface mounted dried up caps and.. well.. it was just a cheapo 15" monitor..

[Welchs101]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

I have access to an ESR meter but i dont have it right now. All the surface mount caps "look" fine.

I will try and borrow my friends ESR meter.

Any other suggestions?

[el3ctroded]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

I don't think the problem is this, but just in case: Make sure you're at native resolution.

[Welchs101]

Re: Viewsonic VP150M Turns on but has horizontal "stuff" on screen

i checked all the caps on the board using an ESR meter. All appear to be ok.

Any other suggestions?

Regarding "native resolution"...........i tried different resolutions but all had the same effect.