My father owns an H-P desktop computer. The original monitor that came with the computer developed a problem with color inasmuch as everything one saw was purple, including the background. I replaced it with an old 15" monitor from my junk pile and that monitor worked perfectly. I attached the bad monitor to three different computers and on each of them, the color remained purple. So, it seemed that the problem was isolated and that it was a defective monitor. I bought a 19" Sony, connected it to my father’s H-P and everything worked wonderfully well. Now, six weeks later, the brand new Sony monitor is completely dead: The power indicator light will not burn, there is no “hum” from the thing, and yes, it is plugged in and the power switch is “on.” I only learned about this problem yesterday and haven’t contacted Sony yet.
Is it possible that the H-P computer could have some problem that is causing monitor malfunction or failure? If so, what would that problem likely be?
It seems to me that minor rewiring on your original monitor would have set the RGB to display correctly. I had a similar problem once.
The Sony monitor conking off could be for any number of reasons. Most likely, with the limited information presented, would be a voltage fluctuation/spike or lightning strike
It is unlikely that the HP computer caused the malfunction in your monitor, unless the SMPS ( power supply of the computer ) is faulty. In which case, replace the SMPS ( this is assuming that the monitor is powered through the computer and not directly through its own cable). Also, it wouldn’t hurt to make sure that your computer is sufficiently grounded.
Another possibility is that, with Sony being from Japan, the input of the monitor power might be at a different rating from that of your local power supply rating. Make sure the ratings match.
Apart from all that, a new Sony monitor in all likelihood has a replacement warranty. Make use of it.
The problem with the monitor where everything was purple is clearly something to do with a failure of the green channel, but this could be anywhere in the system (some old monitors have separate R G and B sockets and one would often be found to be damaged or poorly connected, but with a composite video signal, it’s more likely to be something within the circuitry or CRT that has failed.
I don’t think your problem with your new monitor is related; it sounds like the problem might be as simple as a fuse (although probably not one that can be replaced without dismantling the unit - something which the user should DEFINITELY NOT attempt. I’d take the new one back to the store and ask for a replacement.
