Having problems with your ViewSonic PF790 19" CRT Monitor ?
PF790 monitor picture issue
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\015 Hi,\015\012\015\012My PF790 had been unplugged/unused and stored away in its original box for a few months. I recently removed it from its box to connect it to a spare computer that we felt could be used as a bedroom HTPC system - for our bedroom, the PF790 could double as a decent size TV.\015\012\015\012Anyways, once I connected the monitor to the computer, it worked fine for about 10 minutes. I had not used the spare computer for some time either, so had to install few updates and reboot the PC a few times as well. During one of the reboots, the monitor simply stopped showing the picture. The green power LED light stayed green and did not turn orange even after the computer was turned off. \015\012\015\012I have even tried disconnecting the vga cable from the back of the monitor so that the only cable connected to the monitor is the power cable. Even then, the monitor power indicator led remains green - the LED does not turn orange or display a message on the CRT similar to "No signal - Going to power save mode". \015\012\015\012Another thing - when I turn the power on (whether or not vga cable is connected to monitor), I hear a very high-pitched/faint noise from the monitor. \015\012\015\012Finally, the 10 minutes that the monitor did work, for the initial few minutes, I had noticed the lower left and right corners were showing "discoloration"(?) similar to what one would see if non-magnetically shielded speakers were kept near a CRT screen. However, there weren't any speakers or any other sources of magnetism near the monitor or anywhere else in the room.\015\012\015\012I can do simple repairs (I've built computers, assembled/soldered together DIY-home theater speaker kits, etc), but haven't worked with CRT monitors - would appreciate any feedback on what could be the problem and whether the monitor is repairable or not. \015\012\015\012Sorry for the long post, but I hope the details can help someone provide an answer to whether I should even try repairing it or not and if its repairable, what would be \015\012a good starting point.\015\012\015\012Thanks and Happy Holidays,\015\012-Topper\015
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