Looks lie the full size ROM is the correct ROM at the FW is 5BB. Not sure what happened to the shortened version. It may be that the ROM is corrupt as the board was burnt out when it arrived. I will look at which ROM is on the drive now. Thanks for the help.
I did try both ROM sizes (512 and 256) but we still get the same issue. However am I right in thinking the ROM for these drives is pretty much generic, it is only the NV-RAM which is unique. So using another ROM with the exiting NV-RAM might work?
The strange thing about this ROM is that PC3000 read it as 512kb, but most ROM's for this family are 256kb. I have attached (and have tried both sizes) on the drive but it still will not spin.
Many thanks for your help.
Initially I physically swapped the NV-RAM as the original board was damaged. Took a copy of the NV-RAM after installation. Now have tried a couple of donor board by transferring the data through software. Same result.
This drive came to me with PCB failure (burnt components). NV-RAM at first appeared to be okay as I can read ID, mu-code, Heads, Head Map and SN. However when installed on the drive it will not spin (also changed heads in case of preamp issues).
Patient drive will spin with different NV-RAM...
The heads I used were the original from the failed drive. As this platter already had a score in it and was written off by the client I thought it would be a good experiment.
I am doing some experimenting with platter cleaning and found this post very useful. I have taken the 'plunge' and purchased some HFE 1700 which will be here next week. I know the jury is out with this product, but I am guessing I can use it for liquid damaged phones if not successful. In the...