Hitachi HDT722525DLAT80 250GB IDE need suitable pcb donnor

[SOS DATA 93]

Hi everyone, 

I need to get a compatible PCB for this drive :

Hitachi HDT722525DLAT80 250GB IDE

I could not find an exact match online everything seems out of stock, but i found this one and i'm not sure if it is compatible or not after a rom swap ?

Thanks, 

[pbzcbf...@gmail.com]

The part number near the IDE connector is 0A30317.01 on both PCBs, so that would suggest that the PCBs are identical. 

Both have the same MCU (0A30164, UAB-M3057-HT, V3.3). 

The motor controllers must be pin compatible, but one bears a Hitachi P/N, 0A30502, while the other has 14R9276. I suspect they are identical, but I'm not sure. 

The 14R9276 part appears to have a burn mark on the 5V side, so perhaps the PCB was hit with an overvoltage on the 5V input. I would test R5 near the power connector. It should measure 0.47 ohms. If it is open circuit, then the preamp is probably shorted, in which case you will be looking for a headstack donor, with possibly different criteria.

[SOS DATA 93]

Hi,

I will check R5 tomorrow before purchasing any donor pcb then, because if we are looking at a headstack replacement i rather warn the customer first.

Thanks a lot for taking the time to answer me !

[SOS DATA 93]

Hi,

I had a chance to test R5 on this pcb today.

Probes touching : 0.16 ohms

R5 : 0.67  ohms

This one might be worth to try and swap the PCB and transfer ROM.

Will update on results