WD40EZRX-22SPEB0 PCB Crash
Posted: January 12th, 2016, 11:34
Hello,
new challenge, got a drive with burnt PCB - so i swapped it to new PCB (only thing changed: Rev A is now Rev P1 don't think it's the problem)
tried to boot normaly, but drive only shows the Modelnumber (No serial, no MB, not FW) - only ROM FW - so ROM Should be OK
So i tried a loader - Permant overlay loaded...
ROM Head map is 01234567 but RAM Head map all time 0000000
Not sure if the heads are gone, but they are looking fine under microscope.
So i think it's Software Problem.
After LDR is loaded i can NOT do any tests, head test failure.
The disk spins down, but if i click something it spins up again.
For now my only idea would be a donor drive, trying to read out modules, and do a hot swap...
other suggestions?
new challenge, got a drive with burnt PCB - so i swapped it to new PCB (only thing changed: Rev A is now Rev P1 don't think it's the problem)
tried to boot normaly, but drive only shows the Modelnumber (No serial, no MB, not FW) - only ROM FW - so ROM Should be OK
So i tried a loader - Permant overlay loaded...
ROM Head map is 01234567 but RAM Head map all time 0000000
Not sure if the heads are gone, but they are looking fine under microscope.
So i think it's Software Problem.
After LDR is loaded i can NOT do any tests, head test failure.
The disk spins down, but if i click something it spins up again.
For now my only idea would be a donor drive, trying to read out modules, and do a hot swap...
other suggestions?
- thx