Hitachi AAVA NV-Ram rebuild

[ZeBong]

Hi,

i have this disk that the PCB had a NV-ram corrupeted.

So i found i donor PCB with the same two lines and change it.

Now i can not get ID off the disk.
And i can make a SA Structure Test.

I try also a nv-ram adjustement, it work reading the nv-ram from the sa but when i save the NV-ram from adjustemtn i can not get the ID off the disk...

So what i am doing wrong where ?

avva1.jpg (56.6 KiB) Viewed 4525 times

avva2.jpg (23.06 KiB) Viewed 4492 times

Test : NV-RAM adjustment (SA search)
To vary.................. : SA Top
from..................... : 0x6C1E
to....................... : 0x6C1E
Working folder........... : C:\Program Files\ACE Lab\PC-3000\Bin\!Profiles\HITACHI-IBM\AVVA\AVVA\Data\NV-RAM adaptation
NV-RAM reading.......................... : Ok
Saving NV-RAM to file ( NV-RAM_Org.nvr ).............................. : Ok
NV-RAM ID............................... : VA2OA52A
Prevention full FW boot................. : Ok
Checking at current values.............. : Ok
SA read for value....................... : 0x6C1E
Saving NV-RAM to file ( NV-RAM_Adapted_For_Chk.nvr ).................. : Ok
NV-RAM ID............................... : VA2OA52Á
Restoring full FW boot.................. : Ok
Saving NV-RAM to file ( NV-RAM_Adapted.nvr ).......................... : Ok

[AJ2008]

You may be doing everything OK, but possibly there could be some SA damage. Do any modules have any apparent damage? Also, after NVRAM adjustment can sector edit be launched?

[dmarques]

I don't think your problem is related with NV-RAM, but with some open modules damaged.

By the way, when you replace PCB, have you replaced NV-RAM as well to the new PCB ?

[ZeBong]

The problem is the NV-ram,

This is the original PCB that i have used in other disk and saved the nv-ram to this PCB.

I don't need the data just to understand how it works the nv-ram adjustment.

or try to save the nv-ram from the modules.


Thanks