Kepler64Bit
New member
Bought my first SE/30 a month or so ago. No display or chime when I first tried turning it on, but I could hear the fan and hard drive spin up and seek from time to time
Checked the 5V and 12V rail on the hard drive molex, 4.92V and 11.89V
Bought replacement capacitors off of Console5 for the main board and just recently soldered them in place. Still no boot. Took the ROM out and I get zebra lines. Came with two sets of 4x1mb sticks for a total of 8mb, (I think) so I tried each set individually in bank A but no change
Also, nothing happens when I turn it on for the first time, I have to turn it on then turn it off and quickly back on and then it'll show the zebra lines when the ROM isn't installed. Installed the ROM-inator II, no boot but the CRT briefly flickers or shows a bright white vertical line for a very quick moment on the top half of the screen on the second power on before disappearing
The oscillator at Y1 shows ~32kHz, and I'm not sure where to probe to measure Y2, but Y3 just reads 0.000khz (sometimes 0L)
Also, the PRAM battery has been replaced with a coin cell replacement. There's trace amounts of blue stuff on the legs of some of the IC near the group of 6 capacitors (1 axial, 5 SMDs) but it doesn't look catastrophic (but I can't tell for sure)
Reset and interrupt buttons don't have any visible effect
What do I try next? Replace the oscillator at Y3 and go from there?

Checked the 5V and 12V rail on the hard drive molex, 4.92V and 11.89V
Bought replacement capacitors off of Console5 for the main board and just recently soldered them in place. Still no boot. Took the ROM out and I get zebra lines. Came with two sets of 4x1mb sticks for a total of 8mb, (I think) so I tried each set individually in bank A but no change
Also, nothing happens when I turn it on for the first time, I have to turn it on then turn it off and quickly back on and then it'll show the zebra lines when the ROM isn't installed. Installed the ROM-inator II, no boot but the CRT briefly flickers or shows a bright white vertical line for a very quick moment on the top half of the screen on the second power on before disappearing
The oscillator at Y1 shows ~32kHz, and I'm not sure where to probe to measure Y2, but Y3 just reads 0.000khz (sometimes 0L)
Also, the PRAM battery has been replaced with a coin cell replacement. There's trace amounts of blue stuff on the legs of some of the IC near the group of 6 capacitors (1 axial, 5 SMDs) but it doesn't look catastrophic (but I can't tell for sure)
Reset and interrupt buttons don't have any visible effect
What do I try next? Replace the oscillator at Y3 and go from there?
