iMac600,
This sounds to me like the power supply is the problem. When you take the CRT out of the work load, the "FLUP" sound was much faster, which tells me to check for proper voltage going out of the power supply unit. Is the display completely dark when the 512k is put back together? Or does the screen show a slight blip of light, a small dot of light in the center, or a horizontal line? Maybe a capacitor is bad somewhere on the PSU.
Give that a try and report back with what you find.
73s de Phreakout.
This sounds to me like the power supply is the problem. When you take the CRT out of the work load, the "FLUP" sound was much faster, which tells me to check for proper voltage going out of the power supply unit. Is the display completely dark when the 512k is put back together? Or does the screen show a slight blip of light, a small dot of light in the center, or a horizontal line? Maybe a capacitor is bad somewhere on the PSU.
Give that a try and report back with what you find.
73s de Phreakout.