> > While we're on monitor repair: > I picked up an IBM PS/1 SVGA which when turned on flashes a normal > screen for less than a second, which collapses and then displays a

A MDA monitor does something like that on switch-off, but then that CRT has a rediculously long persistance phosphor... Do just check that it's not the main PSU shutting down (and leaving the monitor to run on the charge in some of the caps). Does the power-on

remain on, for example (if there is one). What about the CRT heater? My guess is that the horizontal output stage is shutting down (but the EHT is staying up for some reason). Assuming that they are separate,

start by looking at the horizontal driver and output stages, their operating voltages, etc Alas I don't have schematics for any IBM monitor apart from the first 3 (5151, 5153, 5154). -tony