monitor has lime or purple hue, worth fixing?

shaggy · Post by **shaggy** » Tue Jan 29, 2002 2:07 am

I have a Viewsonic g773 which has a constant lime or purple tint, it changes as the cord is moved. Do you think this monitor just needs a new cord? It looks like a lot of soldering to replace, I dont want to jump in and be totally inncorrect. Also, where could I find a new cord? Would I need a specific type/brand? Thanks to anyone with any info!

Actually, maybe it isnt the cable. The monitor is bright green even when its not getting a signal(not pluged in to the computer. I dunno, any feedback is still appreciated.

Post by **FlyingPenguin** » Tue Jan 29, 2002 7:51 am

Okay, if you wiggle the cable, the monitor changes colors UNIFORMLY right (not splotchy, as if you'd put a manget against it)?

That's probably a bad cable.

If you're good at soldering it's not that hard a job to replace it with a monitor extension or a cable salvaged from some other dead monitor. Just takes a little patience. It's not THAT many wires.

Be aware that the high voltage section maintains a voltage for quite some time after the monitor is unplugged. Let the monitor sit unplugged for a week to play safe before poking around inside, unless you know someone who familiar with working on TVs.

I can't understand why it'd look green when you unplugged it. This is a modern (no more than 4 year old) all digital monitor (no knobs only pushbuttons) right?

Modern monitors should turn themselves OFF when you unplug them from the computer for one thing. For another, if the screen is all green that might indicate a problem with the green screen circuit - it's turned up too high.

Another possibility is that there's a bent pin in the monitor connector shorting out to another pin or the ground.

Shadow250 · Post by **Shadow250** » Tue Jan 29, 2002 11:01 am

if you want to wait less than a week short the cathode in top of the picture tube with a screwdriver or other piece of metal, wear a rubber glove if possible( cathode is under the rubber cap on top of tube pull it out of the tube b4 shorting.) note: you may get one hell of a flash. it doesnt hurt the capacitor ive done it many times.

Post by **FlyingPenguin** » Tue Jan 29, 2002 12:59 pm

Clarification:

UNPLUG the monitor and short out the anode cap with a screwdriver that has the metal shaft grounded to the chassis (I use a jumper wire with aligator clips on both ends).

Wear a rubber glove a keep your other hand behind your back. Sneak the blade of the screw driver under the rubber anode cap (the big suction cup on the side of the monitor. You'll hear a pop or see a flash. It's basically safe after that.

I didn't really want to go into details on the previous post because I don't like to encourage people who don't know their way around high voltage to poke around in there.

Keep in mind I am in no way responsible for any injury or death (yes, even unplugged that's enough juice stored in there to stop your heart), yada, yada, yada....

Be careful.

shaggy · Post by **shaggy** » Tue Jan 29, 2002 1:30 pm

The monitor is almost 4 years old, I believe it was manufactured in '98. All buttons, no knobs. Last night was the first chance to mess with it after is was given to me, I can describe the problem a little better now. When you first turn on the monitor, even without a signal, there is a bright green "layer" almost like a piece if saran wrap. When you connect the cable the picture is extremely bright/washed out and the green color seems to fade to a purple hue after about 5 minutes, still just as washed out. I probably jumped the gun on the cable idea because after useing it for about an hour last night I didnt see any more flickering while moving the cable. Probably was just a coincidence.
Thanks to both of you-