Viewsonic P775 ,no picture

[monitorGUY]

I have a viewsonic P775 that seems like it gets no signal.
the green light comes on for a few seconds once you turn it on, then it
turns to amber. no matter if there is a signal or not. I can hear a quiet
sqeal when the light is green but nothing on the screen. I have tried both
teh D15hd input and hte RGBHV input. both the same.

I have no schematics nor a high voltage probe. I do have a scope and
multimeters.
is there anything i can do? It probably not worth a lot of effort.
No caps appear to be bulging.

 

[Tom MacIntyre]

I have a viewsonic P775 that seems like it gets no signal.
the green light comes on for a few seconds once you turn it on, then it
turns to amber. no matter if there is a signal or not. I can hear a quiet
sqeal when the light is green but nothing on the screen. I have tried both
teh D15hd input and hte RGBHV input. both the same.

I have no schematics nor a high voltage probe. I do have a scope and
multimeters.
is there anything i can do? It probably not worth a lot of effort.
No caps appear to be bulging.

Without more specifics, it sounds like a PS or HV failure.

Tom

 

[monitorGUY]

thanks Tom
i guess I'll pitch it.

 

[JANA]

In these monitors, when they fail, it was very common to have bad caps in
the power supply, or the scan sections. Use an ESR meter to locate the bad
caps.

--

JANA
_____


I have a viewsonic P775 that seems like it gets no signal.
the green light comes on for a few seconds once you turn it on, then it
turns to amber. no matter if there is a signal or not. I can hear a quiet
sqeal when the light is green but nothing on the screen. I have tried both
teh D15hd input and hte RGBHV input. both the same.

I have no schematics nor a high voltage probe. I do have a scope and
multimeters.
is there anything i can do? It probably not worth a lot of effort.
No caps appear to be bulging.