Question about Hitachi RasterOps CM801U (White) 21 in.CRT Conventional Monitor
Use to have the Windows XP Power Monitor set to turn off the monitor after 5 minutes of inactivity. When the mouse or keyboard use was sensed it would turn back on. This no longer works. It still turns off but won't turn on unless I reboot the computer. I can still get almost the same effect by using screensaver set to a blank screen. Screensaver still works. I've tried the monitor on a couple different computers also using different cables, so I know it's the monitor causing the problem.
Since you have already indentify that the problem is with the monitor, next thing to do is to open it up, but if you are going to DIY repair, then you should read below and look at the pictures so you will know what to look for inside.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
Posted on May 08, 2010
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