Another CLA HDD (HDS721016CLA382)

[shahij]

The drive had no power, dead PCB, swapped including the ROM (PS: NVRAM no more exist in these series), got power but NO SPIN, NOTHING...

Suspected CORRUPTION in ROM, MATCHED with SIMILAR config everything ... still no response...

So, what else the drive might have trouble at all in your mind?

[BlackST]

You should have an oscilloscope if not a DDA, please USE IT.

[shahij]

Check out the POWER MONITOR if you have something to say...

1. This is the Image attached indicating POWER details WITH DONOR PCB & PATIENT ROM.
2. With DONOR PCB & ROM "POWER MONITOR" has same output.

With the donor PCB the drive comes to READY in few seconds.
With Patient PCB, STATUS is "NO HDD"

Attachments

[BlackST]

Is this what you call "oscilloscope" or "DDA" ?

[shahij]

I don't have oscilloscope for now. But for the case problem has been identified.

It's SA Failure. NO ACCESS to SA, not supported for CLA3 HDD till date.

The spin does WHEN THE PCB IS UPLIFTED WITH MOTOR CONNECTION ONLY.

[BlackST]

Funny... Then if you only leave motor and disconnect heads you had access to SA ?!? . If you had a scope / DDA the problem should have been pinpointed in 10 seconds (not the SA to me, unfortunately). Want a friendly advice ? Get a used DDA or a GHz range scope and a programmer for SPI/Microwire devices. It is more useful than the SD box unless you get old drives with simple problems, at present.