Hi there folks,

A week ago arrived at the lab a Maxtor Calypso, one of these very faulty drives - a 6Y080L0, with the PCB completely burnt. The EEPROM is not present, and the preamp was also burnt (short-circuited), so I found a good donor and performed a platter transfer (it has just one platter), to the donor enclosure/HMA.

I've done this procedure twice using 2 donors, both with the same result: the drive thoroughly tries to start, rattles for a long while, and it becomes ready but with no ID. I've been able to upload a few loaders to it, and start the PC3K utility, but I can't read a single module from the utility, not to mention starting the drive and read user data. It rattles (it's not a hard knock, but more like if it were really trying to read) and goes busy whenever I try to read any module.

Have you dealt with such problems with success?

Cheers

Why did you swap the platter?

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Well,
Same Question i will like to ask .even the Salvation Data Tool is superb for this

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Amarbir S Dhillon , Chandigarh Data Recovery Labs [India]
Logical,Semi Physical And Physical Data Recovery
Website-> http://www.chandigarhdatarecovery.com

Hi there,

I swapped it because (1) PCB was completely burnt (couldn't save anything from it), (2) heads pre-amplifier was short-circuited, and (3) original enclosure was rusty and I had no confidence on it. Being one platter, sometimes it's easier to me just to swap it instead of swapping the headstack. Also, I've learnt from experience that you cannot trust original HMA sometimes... I remember of a couple WD clicking, the motor seemed to spin at the right speed and measuring the windings everything seemed to be all right, and having no luck with a new set of heads - until I moved the platters to the donor HMA. Strange as it sounds, but true.

Hi, have you swapped the ROM chip ?

I believe there's infor in the rom chip needed for the disk to start normally.

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If platter is not scored in any way and donor IS compatible AND everything is done the right way ( is it ? ) it should more or less start. Check for damage in SA and with a DDA check what happens exactly with signal/s and servo structure during what it seems the attempt to calibrate. Begin with this....

P.S. according to the mess, if the drive has been fiddled with (i.e. PCB test etc.) it is likely to have added damage to damage.

It's time to go back-to-basics with this, how did you match compatibility of the heads for this swap?

+1 above, you really should not have swapped the platter. You have only complicated matters now.

Headswaps are ok on these so long as you match the heads correctly. As far as the PCB goes, they are also easy so long as you match the MCU. I can't recall ever seeing one of these with a bad motor - unless it was dropped causing a bearing seizure.

With this new chassis, is there any vibration?

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Bad motor happens and very often, especially when hit by Power surge. Either open or short windings . In that case a new PCB is fried at start in seconds.

I vote for bad reassembly, some incompatibility or the last option, servo damage. I have developed years ago a solution even for servo damage on SA but in this case I think problems are more than one....