WD2500JD-75HBB0 Clicking, no access to SA

[robertotron]

Hey Guys, heres the deal. The drive clicks 3 rounds of 10 clicks then it powers down, DRD DSC.

Donor:
WD2500JD-75HBB0
Date: 24 Jul 2004
DCM: HSBACTJAA
Malaysia
ROM: 08.DHD


Patient:
WD2500JD-75HBB0
Date: 24 Jul 2004
DCM: HSBACTJAA
Malaysia
ROM: 08.1HD


Techno mode key:
HDD geometry loading.................... : Ok
Cyl Count............................... : 87921
Head Count.............................. : 1
SPT..................................... : 900

RAM:
Zone allocation table................... : Ok

Read ROM................................ : Ok
ROM version............................. : 08.1HD
ROM generation.......................... : ......
Link table version...................... : 02.A9.
Heads configuration..................... : From map
Heads number............................ : 6
The number of heads in use.............. : 6
Disabled heads.......................... : No
Head map................................ : 0,1,2,3,4,5

Service area:
Modules table loading................... : SA Directory checksum error
Configuration loading................... : Module 42 not found in modules directory
Translation overlay checking (Copy 0)... : Not found in modules directory
Translation overlay checking (Copy 1)... : Not found in modules directory


I swaped ROMS and the patient PCB works on the donor drive so it doesnt appear to be a PCB issue. The donor PCB with the patient ROM on the patient drive doesnt stop it from clicking.
I tried RAM head map editing and the drive always clicks after a soft reset.
The drive always seems to make the same type of clicking noise no matter what I do.

Not sure what to try next besides swapping the heads.

[AJ2008]

Did you try to reach DRDY after disable heads in ROM? Disable all heads except 0, then except 1. Both are service heads, if one is good maybe SA can be reached.

It does sound like a mechanical problem. Unfortunately this series of disk is not so nice for head exchange

[robertotron]

I can't get DRD no matter which head I leave enabled. I guess I have no choice but to swap the head assembly.

This drive has alignment issues? I read that the EB and BB are troublesome. Is there a list of which WD drives has such an issue?

[AJ2008]

Is there a list of which WD drives has such an issue?

All models before ROYL series have issues with alignment. Some are worse than others, for example Unicorn are very dififcult.

good luck