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Yangzai
 Post subject: How to short circuit for ST3320418AS
PostPosted: February 11th, 2012, 11:54 
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Joined: February 6th, 2012, 3:38
Posts: 4
Location: China
help me please :cry:

I update FIRMWARE then computer can't find it any more.

Quote:
F3 2>Z

HighPowerMode
Spin Down Complete
Elapsed Time 0.103 msecs

F3 2>U

HighPowerMode
ExecuteSpinRequest
DiagError 00006008
Spin Error


the motor can't Spin up.
Attachment:
DSC00309.JPG
DSC00309.JPG [ 445.58 KiB | Viewed 5719 times ]

how to short circuit for this PCB.

MODEL: ST3320418AS
FIRMWARE: HP41
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fzabkar
 Post subject: Re: How to short circuit for ST3320418AS
PostPosted: February 11th, 2012, 14:33 
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Joined: September 8th, 2009, 18:21
Posts: 16955
Location: Australia
I don't know the actual problem (did you update HP OEM firmware with Seagate's retail firmware?), but if you're looking for the read channel test points, then they are pins 14 and 16 of the preamp connector.

You will probably find a 100 ohm resistor between the differential pair near the MCU.

Here are more examples:
http://www.users.on.net/~fzabkar/HDD/RW_TestPoints/

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Yangzai
 Post subject: Re: How to short circuit for ST3320418AS
PostPosted: February 11th, 2012, 23:56 
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Joined: February 6th, 2012, 3:38
Posts: 4
Location: China
fzabkar,
thanks!try again. :D
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Yangzai
 Post subject: Re: How to short circuit for ST3320418AS
PostPosted: February 12th, 2012, 1:12 
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Joined: February 6th, 2012, 3:38
Posts: 4
Location: China
the motor alway can't spin up.
:cry:
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