How to make compatible PCB swap on IBM

[sigitharjono]

Dear : All

The dead PCB :
IBM Travelstar; model : IC25N020ATCS04-0; P/N : 07N9317; MLC : H32687;
07N9084
H32624_
LdA218
LN3C

The Good PCB :
IBM Travelstar; model : IC25n030ATCS04-0; P/N : 07N8363; MLC : H32687;
07N9085
H32625_
LdA220
CGXF

I have swap PCB but not success; I suppose the blue text is different; It is right ?
Can I swap NVRAM (IBM36 AMSRC04 GE TQA7B0.6C ) from dead PCB to good PCB to make compatible ?

Thanks

[ragadatasolutions]

Hi,

You should have the first two lines match exactly.
(I assume its IBM Hitachi disk)

-RDS.

[sigitharjono]

Thank : ragadatasolutions

but the two PCB is look the same (IC controller; motor, RAM etc) and what electronic parts or SMD must be swap to make compatible PCB.

thank very much

[pepe]

Hi,

in this family there is no separate ROM ic and it neither uses NVRAM as well.
the IC u mentioned is the reading/prml channel, it has nothing to do with compatibility.
It was quite a while ago I needed to PCB-swap one of these, but as far as I remember there was nothing special about it and I could use a board from a different sized donor drive, provided the FW version was the same.
Correct me if I am wrong, pls!
pepe

[rameez]

I think this pcb has an embeded rom in CPU if u can change CPU then go for it .