How to get T-Level without motor-spinning.(Seagate terminal)

[drnoom]

Thank you so much

[prodata]

HOW can... ???
Impossible..

[Samo]

From Level F to level T with disabling spin up.

Regards
Samuil

[wawalab]

hi drnoom
when readding ROM then spin down but i dont know whats you doing.

[drnoom]

Thanks for answers. I need to use the PCB and HSA of the drive for making media tester.

I would like to use only head and PCB of the drive to read/write data on a sample medium.

if I can go to level-7 then I can control the operation of preampfiler of HSA.

if anyone know the solution, pls give me some suggestions.

Thanks & best regards.

[wawalab]

7>O0,1,1 ( Test head 0, zone 1, simplified form ) Zone 1
[0DCA.0,FDC0,FF6A,1c, 3] ->Min=023C(FE47) BL=7FFF BR=7FFF Range=0000 Pick=FE47
[0DCA.0,FDC0,FF6A, 1, 3] ->Min=000C(FE41) BL=FE23 BR=FE59 Range=0037 Pick=FE3E

This means that it ran the offset cal in zone 1 head 0. It ran the test at 0DCA.0, and it tested the offset range from
0xFDC0 – 0xFF6A. It read 0x1C revs at the track. It also incremented the offsets by 3 each tick. I.e. it tested offset
0xFDC0, then 0xFDC3, 0xFDC6 etc… The results are, in the first test, it got a Min of 0x23C at location 0xFE47. There was not bathtub curve (got a 0x7FFF for bath tub left, and bathtub right). Since there was no bath tub curve, the range is 0. The pick would be then the position where the min occurred as there is no bathtub curve.

As there was no bathtub curve, a retry was initiated, but with a lower read count. As you can see on the second line, we are testing the exact same parameters, except we are reading 1 rev instead of 0x1c revs. With that we have a bath tub curve, ranging from 0xFE23 to 0xFE59, hence giving us a range of 0037. We pick the center of the bathtub giv- ing us a 0xFE3E

[Doomer]

two options
1. load app to memory and start it (get levels)
2. manipulate with preamp on level F

Do not ask me how do that


What I didn't get - how you supposed to test heads on Zone1 w/o spinning ?