[TechAssist] Proview PV-1766A 17" mon, Low screen voltage--black picture.

Hi fellow techs,

Does anyone still fix monitors ?  I've got one here that has a black 
picture--if I turn up the screen control I get a very dim picture.  Screen 
voltage is about 150 volts--should be 300-400 volts at least!  Every voltage is 
fine (including the high voltage)except for a 30 volt line off the flyback 
which reads only 24 volts. 

 Discovered that OSD was also malfunctioning, the horizontal width control 
adjusts the vertical height, and the vertical height control adjusts the 
horizontal width.  The brightness and contrast controls are also reversed--and 
the contrast does not adjust anything!  The contrast control (actually the 
brightness) does adjust G1.  It almost sounds as if the microprocessor is 
faulty, and the monitor has gone into some kind of shutdown.  

Kevin Wilks
Kevin's TV and Video Repair
Penticton BC Canada
kevinstv@xxxxxxx


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