Yet another Samsung problem

[TerraNova]

Have you guys seen this error, what does it mean?

Samsung SP1604N with this terminal error:

SpnOk
DAC:-00245
H: +00000
UF: 1. 1st Gray err
H: +00001
UF: 1. 1st Gray err
H: +00002
UF: 1. 1st Gray err
H: +00003
UF: 1. 1st Gray err
H: +00000
UF: 1. 1st Gray err
H: +00001
UF: 1. 1st Gray err
H: +00002
UF: 1. 1st Gray err
H: +00003
UF: 1. 1st Gray err
ENG>SRV>

Thanks

[Starling]

Dead PCB or dead preamp.

[darkforce1]

Head Gone.

DF

[pepe]

I vote for PCB or preamp, though this is not all about voting

check the drive with another PCB of the same model regardless of FW revision, if the terminal gives the same, preamp is gone.

pepe

[BlackST]

Either preamp, head or firmware issue (yes, could be)

Does the drive knock at startup or calibrate ?

You can easily test for data out of the preamp (quantitative, not qualitative) and the relevant signals on the PCB with 150 Mhz or more bandwidth scope.
I have discussed this kind of test about two years ago, probably not here... I can't remember.

Regards.

[BlackST]

Either preamp, head or firmware issue (yes, could be)

Does the drive knock at startup or calibrate ?

You can easily test for data out of the preamp (quantitative, not qualitative) and the relevant signals on the PCB with 150 Mhz or more bandwidth scope.
I have discussed this kind of test about two years ago, probably not here... I can't remember.

Regards.

[pepe]

Hi,

with such report the drive must be clicking, but let TerraNova answer this question for sure.
Since it is apparent that the drive cannot access any of its heads - most probably preamp is not functioning due to either its own damage or due to lack of proper alimentation from the pcb - Starling an me were suspecting preamp or PCB problem in the first run.

pepe

[TerraNova]

Does the drive knock at startup or calibrate ? yes it knocks at startup, no it wont calibrate.

Thank's guys, will keep you posted ....

[TerraNova]

yes its the head as i swapped with SP1614C (SATA) i got the same errors on terminal.

Can I use SP1614C (patient drive is SP1604N) HDA? Both have the same P/V MS and the donor drive is SATA.

Thank's

[BlackST]

If no further investigation on the MC is possible in emg. mode , you get no signal at the HSA connector (checked w/ scope or logic analyzer ?) and you are sure it's not a firmware problem , then HSA swap could be the last resort.
Anyway I had some drives with same symptoms fixed : simple firmware issue (the sw on the MC and the code didn't match anymore) , but I was going only to repair the drive not DR.

[beto]

Hy terranova did u check the preamplifier circuit or flex from MHA number its same between donnors?

[pepe]

Hi,
Have u checked with another PCB?

pepe

[TerraNova]

Yes Pepe, same results on terminal. click click 8 times and power down.
The donor drive i used is SP1614C, just wondering if it is compatible with the patient HDA, both have the same P/V MS.

Thanks