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 Post subject: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 20th, 2020, 16:16 
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Joined: September 14th, 2018, 13:41
Posts: 182
Location: italy
Hi guys i have a disk with this issue, click 2 times and spin down, I have change head but i see same situation, The plate are good and i have make head adaptive from donor but same situation :-(
Boot 0x10M
FAIL Servo Op=0100 Resp=0003
ResponseFrame 0000 373E FFFF 0000 0000 D98E 0035 FF92 0000 0003 0000 0000 0000 0000 0000 0000 1148 7AEC 4FEC 47A0 31C6 CF13 8195 F937 1070 5252 A088 4214 A0DF 9889 B237 C0AA 0000
FAIL Servo Op=0100 Resp=0003
ResponseFrame 0000 3752 FFFE 0000 0000 D99C 0035 FF95 0000 0003 0000 0000 0000 0000 0000 0000 1148 7AEC 4FEC 47A0 31C6 CF13 8195 F937 1070 5252 A088 4214 A0DF 9889 B237 C0AA 0000
Spinup Failure
ServoLoopCode=0x0000007F
What do you suggest me ?
Thansk


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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 20th, 2020, 16:30 
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Joined: October 3rd, 2005, 0:40
Posts: 2915
Location: Hungary
can you post donor and patient rom here?
do donor heads work back in donor?
pepe

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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 20th, 2020, 18:44 
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Joined: September 14th, 2018, 13:41
Posts: 182
Location: italy
yes work better, I have swap many times for check and work. Thanks Pepe


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rom.rar [358.97 KiB]
Downloaded 26 times
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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 8:24 
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Joined: October 3rd, 2005, 0:40
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Location: Hungary
I am pretty sure not all neccessary adaptives are transfered by pc3k.
can you also post the result of adaptives import?

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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 12:09 
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Joined: September 14th, 2018, 13:41
Posts: 182
Location: italy
for test I made a new change of head from another compatible donor I attach the rom of the new donor and the rom with the adaptive parameters taken, thanks for the help Pepe
***
New log :

Boot 0x10M
FAIL Servo Op=0100 Resp=0007
ResponseFrame 0E61 375F FFFD 0000 0000 DBAD 0000 FF8F 0000 0001 0000 0000 0000 0000 0000 0000 1148 7AFC 4DEC 4780 31C7 CF13 8195 F937 1232 5252 A088 6215 A09F 9880 BA77 C0AA 0000
FAIL Servo Op=0100 Resp=0007
ResponseFrame 0DE1 377C FFFD 0000 0000 DBC4 0001 FF8D 0000 0001 0000 0000 0000 0000 0000 0000 1148 7AFC 4DEC 4780 31C7 CF13 8195 F937 1232 5252 A088 6215 A09F 9880 BA77 C0AA 0000
Spinup Failure
ServoLoopCode=0x00002047


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new_rom.rar [537.05 KiB]
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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 14:15 
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Location: Hungary
yeah, some adaptives are taken which are not neccessary, some not that would be useful, but the drive should at least spin up without problem with those...
I would suspect a flipped platter if it came opened...
pepe

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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 14:21 
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Joined: September 14th, 2018, 13:41
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Location: italy
the disc arrived intact and even before disassembling the platter to check its condition it had this behavior. The disc arrived in the laboratory because it was clicking, I saw servo error and I changed the heads but I didn't get results, thinking it was a scratched plate I checked that the 0 disk was good and so it is, so I tried the heads on the donor and they worked I then mounted the heads again and tried with the adaptives but so far nothing done. Thanks Pepe


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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 14:32 
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Joined: September 14th, 2018, 13:41
Posts: 182
Location: italy
hi Pepe this is the situation after plate flip :
Boot 0x10M
FAIL Servo Op=0100 Resp=0003
ResponseFrame 0000 3624 FFFE 0000 0000 DC0C 00AA FF91 0000 0003 0000 0000 0000 0000 0000 0000 1148 7AEC 4FFE 4780 31C6 CF13 8994 F937 1072 5252 A0C8 4215 A09F 9889 B237 C0AA 0000
FAIL Servo Op=0100 Resp=0003
ResponseFrame 0000 3632 FFFE 0000 0000 DC41 00B3 FF91 0000 0003 0000 0000 0000 0000 0000 0000 1148 7AEC 4FFE 4780 31C6 CF13 8994 F937 1072 5252 A0C8 4215 A09F 9889 B237 C0AA 0000
Spinup Failure
ServoLoopCode=0x0000007F


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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 14:56 
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Joined: October 3rd, 2005, 0:40
Posts: 2915
Location: Hungary
more or less the same...
But i just suspected it, if it arrived to you opened, didn't mean you should immediately flip that platter :s.
The first donor had different preamp, which is not imported and might cause mr bias to be set incorrectly. But i am not sure if that causes it. I would diag it with some special tools...
Or get a donor with same preamp and head, which would eliminate the need of dealing with adaptives (at least on this level).

pepe

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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 15:11 
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Joined: September 14th, 2018, 13:41
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I checked the number printed on the flat of the head and it is the same, I tried with two different donors and a really very close donor with the same firmware but nothing, I always get the same error. I'm in the dark: -S


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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 15:27 
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Joined: October 3rd, 2005, 0:40
Posts: 2915
Location: Hungary
I can probably recover it but not remotely.

pepe

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 Post subject: Re: ServoLoopCode=0x0000007F seagate st500lt012
PostPosted: February 21st, 2020, 17:44 
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Joined: September 14th, 2018, 13:41
Posts: 182
Location: italy
if you want to try with a remote Desktop you would give me a big hand, I'm in Italy and I have considerable difficulties to shipping the product. thanks anyway for the help you have given me so far you have been very kind. thank you


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