In article ,
Andrew Tweddle wrote:

I have one of these machines (its really a SONY inside, no idea which
model). Anyway the fault is it turns off after 2 seconds when connected
to a PC. I have found one dying cap CP78 on the power supply board, but
can't seem to make much headway.
The second question is, does this model work in normal operation on the
PC 640*480 VGA mode or did Apple not allow this in this model. The Apple
data sheet isn't particularly explicit.

Thanks Andrew

this unit supports other resolutions than 640x480
but you need a computer which supports multiple frequencies monitors

on (very) old macs, this display is black.
does it turn really off or does only the led comes yellow after 2 secs ?
if it is, it's probably not a power supply fault, but a logic (video
fault) as the monitor detects the video and comes green only if it has
video it can display.

dont know also which sony model it is..

--
Jean-Yves.