4x WD20EARS 1x Dead PCB - Repair Options?

[Questor]

I have 4x 2Tb WD20EARS, one of which is producing a clicking pattern, 4 clicks, pause, 1 click, 4 clicks, pause, 1 click, spin down

I have tried the other three PCBs on that drive and all work.

I have tried the suspect PCB on the other 3 drives, same clicking pattern.

So I am guessing, the PCB is in need of.. something

Is there a way of identifying the pattern as a diagnostic acoustic? Google results have come up with this forum but nothing specific.

Any applications for MAC OS I can use which will recognise the drive through a USB caddy connection and perform diagnostics?

If this is a quick and simple swap PCB at low cost, could anyone recommend a good supplier for international postage?

Many thank for any assistance.

[HaQue]

I have tried the other three PCBs on that drive and all work.

I have tried the suspect PCB on the other 3 drives, same clicking pattern.

You already have your answer I think.

Are you saying that the 3 other PCB's you tried that "all work" gave access to DATA properly as well? without any type of ROM transfer.

If so, by another PCB and jobs done.

[Questor]

Thanks, that is pretty much what I suspected.
Any good resellers for WD PCBs in the UAE?