Recently my monitor picture became dark. I have the setting on the monitor on the highest, brightness and contrast setting level.
But Screen knob on the LOPT is moulded into the casing and is unmovable.
I was wondering if there is another way to increase the brightness to the tube other then the screen adjustment.
Monitor Model No.IPEX v798
thank you for your help.
probably filament voltage,,,odd as it sounds,you can take a foot or so of wire ,go around the fbt one maybe two times and connect to ffilament, remove old connection first
The screen adjustment usually has one or more fixed resistors, in addition to the adjustment. One of those is likely to be bad (they're usually in the 220k ohm range, located near the CRT socket). Take the usual precautions, and compare the measured resistance with the color code.
One of the 'focus' adjustments is likely to change the screen (but they're mislabeled - no surprise there, the 'screen' label was also wrong).
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