My PSU & associated board recently started overheating intermittently, so I replaced it with a new one.
Upon installation, the fan runs and the control panel lights up dimly, but with no text. The formatter board was fully seated.
I reinstalled the old PSU, but now got the same result as with the new PSU.
I have an completely identical, working Z3200 that I can swap parts with for troubleshooting. I installed the suspect formatter in my other, known-working Z3200 just long enough to see it go into boot sequence. So, it's not the formatter. Since swapping the old, intermittent PSU & board and the brand new PSU & board doesn't affect the symptoms, it's not the PSU either.
Where I am now:
- Z3200 with a known working PSU and formatter.
- On power-up, fan comes on, control panel has only a dim backlight with no text, and the power button isn't lit.
- Swapped known-working PSUs twice, same symptoms
- I'm 100% sure I'm installing it correctly and all cables are well seated