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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Seagate Terminal

March 16th, 2009, 10:58

Hi to all ,

Afther change heads have this :


Code:
Preamp ID 6C unsupported
Reset
4096k x 16 DRAM

F>
Preamp ID 6C unsupported
Reset
4096k x 16 DRAM

F>


It looks like the preamp is not the same, but i have match the site code.

Any comment,

Thanks
ZeBong

Re: Seagate Terminal

March 16th, 2009, 11:04

The head stack is incompatible.

Re: Seagate Terminal

March 16th, 2009, 11:17

Thanks Jono.

Re: Seagate Terminal

March 17th, 2009, 4:32

Either that or you've left both rubber spacers in between the PCB and the head stack connector, so they don't connect.

Re: Seagate Terminal

March 17th, 2009, 5:05

The pre-amp "6c" identifier is not compatible. Simple as that ;o)

Re: Seagate Terminal

March 17th, 2009, 7:17

Can you show the patient and donor details here?

Re: Seagate Terminal

March 17th, 2009, 7:41

Hi,

PATIENTE :
ST3320820A
P/N : 9BJ03G-500
FW : 3.AAC
DC: 07025
SC: WU

DONOR:
ST3320820A
P/N : 9BJ03G-065
FW : 3.AAD
DC : 07213
SC : WU

PCB :
motor chip different name
ST-v470BB
AGERE

number the same : 100404196


Pre amp
can not see the ship numbers / name

PRE-AMP.JPG
PRE-AMP.JPG (16.28 KiB) Viewed 11387 times

PRE-AMP1.JPG

PRE-AMP2.JPG

Re: Seagate Terminal

March 17th, 2009, 7:49

Personally I would have thought this would work....

Re: Seagate Terminal

March 17th, 2009, 12:45

With Seagate having over 300 seperate part numbers for OEMS I am not surprised

Dell may require a specific pre-amp to go with a media combination.. IBM may require something else... Each OEM requests a certain spec and Seagate will mix n match components for best yield <> reliability for each vendor

Re: Seagate Terminal

May 5th, 2009, 18:55

Back to this case,

I can see one differente that could not make the heads match , the FW version.

Anyone have cases like this ?

Re: Seagate Terminal

May 6th, 2009, 1:49

Have similar case, we'll talk privately.

Re: Seagate Terminal

May 6th, 2009, 1:57

I have such case before. But it is not seriuos problem... from experience we learn more...... :)

Re: Seagate Terminal

May 6th, 2009, 3:38

Take pics of the little PCB's inside the drive (that connects the head stack to the PCB, through the drive).

Re: Seagate Terminal

May 6th, 2009, 8:44

pcimage wrote:Take pics of the little PCB's inside the drive (that connects the head stack to the PCB, through the drive).



Hi sean,

DONOR:
GL4-T
AGA2-B

PATIENT:
GL4-B
TI-B


I think that the first do not match by a letter
Dont know is this have to macth all?

Thanks
ZeBong

Re: Seagate Terminal

May 6th, 2009, 8:54

Jose,

you have msn :-)

Sean

Re: Seagate Terminal

May 7th, 2009, 6:55

being a secret spy I would guess the following PREAMP configs

Ti= Texas Instruments
A= Agere example (TrueStore PA7800 EOL)


Apples & Pears
Chalk & Cheese
:lol:

Re: Seagate Terminal

May 7th, 2009, 18:00

The cats out of the bag! :-)

Re: Seagate Terminal

May 8th, 2009, 4:01

opsss put it back put it back :lol:

Re: Seagate Terminal

May 8th, 2009, 13:22

lol
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