Quoted from Crash:
Is it the 5V section that gets overloaded? I thought it was the HV circuit.
Double checked the old Pinrepair guides, it is easier to quote the guides.......
"There is no way to fix an old "outgassed" display.
When a DMD starts to get blurry or displays gaps, the rumor is the power
requirements for the display increases. It turns out this rumor is actually incorrect,
at least as far as the High Voltage (-120 and +65 volts) is concerned. The HV (high
voltage) power used by a display is directly proportional to the number of dots lit on
the display. If a display is entirely outgassed and not lighting (even though the CPU
is asking the display to lit), it will consume no more HV (high voltage) than a working
display that is not lit. Kirb did some test of various displays and metered the results,
But what about the 5 volt consumption? Unfortunately we did not do enough testing
of the 5 volts to draw any conclusions. But based on reports of outgassed displays
causing game resets (stressing the 5 volt supply), it is reasonable to think that an
outgassed DMD does consume more 5 volt power. Another interesting fact is that
certain DMD makes consume more 5 volt power than others. The biggest 5 volt
power hog is Dale/Visay, consuming nearly twice what other DMD displays use."