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| ST31000528AS No access to terminal http://forum.hddguru.com/viewtopic.php?f=11&t=21658 |
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| Author: | dukenukem [ January 7th, 2012, 15:38 ] |
| Post subject: | ST31000528AS No access to terminal |
Hi everybody I have seagate ST31000528AS 7200.12 with a bad SMART (no access to DATA). I want to clear the SMART but I don't why I have no access to terminal. I tries to access to terminal with another HDD, I succeded (It means that my terminal card is working) Acelab told me that I need to short circuit this drive, but first I first I should identify the pins (which I don't know) here are the picture of the PCB (front and back) http://imageshack.us/photo/my-images/268/dscf4939z.jpg/ http://imageshack.us/photo/my-images/252/dscf4944.jpg/ |
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| Author: | labtech [ January 8th, 2012, 22:37 ] |
| Post subject: | Re: ST31000528AS No access to terminal |
Hint: check the commonality of all PCB cases and their shortning points presented by Ace in their Seagate F3 manual/document. |
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| Author: | freakzy [ January 10th, 2012, 7:10 ] |
| Post subject: | Re: ST31000528AS No access to terminal |
Check page 16 of UDMA F3 manual |
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| Author: | fzabkar [ January 10th, 2012, 8:14 ] |
| Post subject: | Re: ST31000528AS No access to terminal |
I have some examples for various drives: http://www.users.on.net/~fzabkar/HDD/RW_TestPoints/ The read test points can be identified by a single resistor (eg 100 ohm) connected across the differential pair at the MCU end. The write test points are either not externally terminated, or they may have a 50 ohm resistor between each member of the differential pair and ground. |
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| Author: | dukenukem [ January 13th, 2012, 11:10 ] |
| Post subject: | Re: ST31000528AS No access to terminal |
Hi, first I would like to thank you: fzabkar, freakzy and labtech for the replay. I think I found it http://imageshack.us/photo/my-images/26 ... oints.jpg/ When short circuiting the points, the hdd recalibrated thats all, nothing happened, still have no access to the terminal (unselected) Anyone had the same case 
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