HP P1110 Monitor Problem

[Michael]

Hi, all. I have an HP P1110 21" monitor with a weird high-voltage
problem. Turn it on, great pic. After about 30 seconds, it blooms and
gets very out of focus, then the neon flashover lamp near the flyback
arcs over, there's a loud pop, and the pic disappears. A second later,
it comes back on looking normal, and then the cycle repeats.

When I first got it, I suspected some solder joints around the board in
the corner, where the HV setting pot is. I soldered them and the darned
thing worked for a couple of months! Then it started doing it again, and
now nothing I do will stop it. It doesn't seem to be mechanically
influenced the way a bad connection would be. Tapping hard around the
area has no effect.

Is it just a bad flyback? I hate to spend for one if that's not the
problem. Anybody run into this one before?

I know these monitors have an issue with being overly bright. This one
was a bit like that when I got it, but turning down the screen solved
that, and the brightness hasn't varied, except when the problem flares
up and it blooms and dims.

Thanks for any advice.

Sincerely,
Michael

 

[Jerry G.]

Many times I have has the flyback assembly cause this. The HV multiplier
section was the actual cause. It is part of the flyback. When soldering the
connections on the underside, it is possible the some of the heat from the
iron did something to the failing part(s) to cause them to work a little
longer.

--

Jerry G.
==========================


Hi, all. I have an HP P1110 21" monitor with a weird high-voltage
problem. Turn it on, great pic. After about 30 seconds, it blooms and
gets very out of focus, then the neon flashover lamp near the flyback
arcs over, there's a loud pop, and the pic disappears. A second later,
it comes back on looking normal, and then the cycle repeats.

When I first got it, I suspected some solder joints around the board in
the corner, where the HV setting pot is. I soldered them and the darned
thing worked for a couple of months! Then it started doing it again, and
now nothing I do will stop it. It doesn't seem to be mechanically
influenced the way a bad connection would be. Tapping hard around the
area has no effect.

Is it just a bad flyback? I hate to spend for one if that's not the
problem. Anybody run into this one before?

I know these monitors have an issue with being overly bright. This one
was a bit like that when I got it, but turning down the screen solved
that, and the brightness hasn't varied, except when the problem flares
up and it blooms and dims.

Thanks for any advice.

Sincerely,
Michael

 

[Michael]

Many times I have has the flyback assembly cause this. The HV multiplier
section was the actual cause. It is part of the flyback. When soldering the
connections on the underside, it is possible the some of the heat from the
iron did something to the failing part(s) to cause them to work a little
longer.

Hi, Jerry. Yeah, I kind of figured that was the cause. Darn it. Is there
anyplace to buy a flyback for this thing at reasonable cost? It's a nice
monitor when it works, and 21" monitors are still not super-cheap, so I
suppose it might pay to put a flyback into it if it's not exorbitant.

Thanks.

Sincerely,
Michael

 

[Jerry G.]

Since HP will most likely NOT sell any parts, you will have to call around
to see if there is such a thing as a universal replacement. The replacement
may not necessarily be the best.

If you really like the monitor, call HP and arrange to ship it out to them
for repair. They will fix it if you accept their estimate, and use original
factory parts. If the flyback is gone, I am sure that there may be some aged
capacitors and other parts as well. They will know exactly what parts to
change that are most likely to soon fail, since most faults for them are
routine.

--

Jerry G.
==========================

Many times I have has the flyback assembly cause this. The HV multiplier
section was the actual cause. It is part of the flyback. When soldering the
connections on the underside, it is possible the some of the heat from the
iron did something to the failing part(s) to cause them to work a little
longer.

Hi, Jerry. Yeah, I kind of figured that was the cause. Darn it. Is there
anyplace to buy a flyback for this thing at reasonable cost? It's a nice
monitor when it works, and 21" monitors are still not super-cheap, so I
suppose it might pay to put a flyback into it if it's not exorbitant.

Thanks.

Sincerely,
Michael