Hi,
I've been given a monitor. It works pretty fine, but for one thing:
There's a red teint across the screen, especially in the black areas. When I turn contrast fully down, the screen doesn't become black but red. With contrast fully turned up, it's perfectly normal picture, except in big black areas, where it shows a red hue again.
When I turn brightness down, it also becomes more red-dish, but not so extreme as with the contrast fully turned down.
No retrace-lines, or other problems.
Could it be a heater-cathode short? Or something else? I suspect the red channel, of course. However, I'm reluctant to operate this monitor without being pretty certain where to start looking. At the moment, it's the only monitor I have...
Also: I use this monitor in 1024x768 mode, but when starting up, it goes to 640x480 (I think). In that resolution, it shows severe >< distortion. (barrel distortion?). For my standard resolution, 1024x768, I can perfectly correct this, but in other modes it shows up again, severely. Is this expected behaviour of this monitor?
Model: Compaq V500 Chassis: Samsung CHB5707
A schematic I've downloaded from here:
Hope anyone can help.
Peter.