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.

On Sat, 8 Apr 2006 16:26:23 -0400, "monitorGUY"
wrote:

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

thanks Tom
i guess I'll pitch it.

"Tom MacIntyre" wrote in message
...
On Sat, 8 Apr 2006 16:26:23 -0400, "monitorGUY"
wrote:

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

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
_____


"monitorGUY" wrote in message
.. .
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.