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Data recovery and disk repair questions and discussions related to old-fashioned SATA, SAS, SCSI, IDE, MFM hard drives - any type of storage device that has moving parts
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Samsung HM100UX PCB Problem

April 16th, 2018, 9:25

Hard Disk spins normally. No weird sound.
The sata-2 connector is O.K. Blue light is on.

when I plug "USB device not recognized" message appears. I reflow and resolder "The coupling capacitor.


after that message disappears.

I need data. How can I convert to SATA?
Attachments
HM100UX_capacitors.jpg
HM100UX_capacitors.jpg (52.99 KiB) Viewed 1184 times
hm100uX pcb.jpg

Re: Samsung HM100UX PCB Problem

April 16th, 2018, 9:54

More than resoldering those coupling capacitors ( don´t know, never saw problem in that area ) you should check the usb connector, those chokes pointed with white traces in your picture, and check continuity with an usb cable inserted fromt he pins in the computer-side of the cable to the processor side of those little chokes.

Also, depending on the disk/computer, you need to use a powered usb hub or cable with two usb connectors for these to work.

Re: Samsung HM100UX PCB Problem

April 16th, 2018, 17:51

Show us the terminal output.

How to connect a terminal adaptor on a Samsung drive ?
http://www.hddoracle.com/viewtopic.php?f=116&t=189

Re: Samsung HM100UX PCB Problem

April 17th, 2018, 9:30

Thank you for replies

ActiveFW : 00
FWVer : 0001
DDR size detected = 8MB
SATA PLL cal done
*PA VID=0008 PN
=0000 Rev=0006
*PA VID=0008 PN=0000 Rev=0006
U
S_0SSC EN
SO_1
SSC EN
IS=2
CLA #36/98
Handoff RPM=414
SPOK
SR:52 SS:00000280
mS1 00000003
A1O=126 A1G=416
O=510 S=2
SK C: 5425 H:0
Boot Sector Error! Take a default.
Loaded FIT ( 0: 0: 1)
CalibTable Loaded. Rev:0x1B
ResoTable Loaded. Rev:0x01
RRO1xTable Loaded. Rev:0x01
Fw Active 0000
Ovly loaded to 0x00014D00
Ovly loaded to 0x1002E300
FdtTable Loaded. Rev:0x02
Reading Serial Num Pass
Up MC

PwrOn RRO1x @ H0
Table) cos = 595968, sin = -225280
Coeff) cos = -34463, sin = 275495

DiskSlip : 78 [SrvTrk]
DiskSlip : 68 [SrvTrk]

PwrOn RRO1x @ H2
Table) cos = 594944, sin = -224256
Coeff) cos = -47815, sin = 233402

DiskSlip : 78 [SrvTrk]
DiskSlip : 68 [SrvTrk]

PwrOn RRO1x @ H4
Table) cos = 595968, sin = -224256
Coeff) cos = 33101, sin = 36189

DiskSlip : 78 [SrvTrk]
DiskSlip : 81 [SrvTrk]
TgtCyl: 832
Hd: 4 Zn: 0 Avg.:- 192
TgtCyl: 208064
Hd: 4 Zn: 1 Avg.: 686

SVCAL(0080,0000)-->PASS
RecordValid Ok : 4107E47D 0107E41D
ReadyTime = 5004079 us


[DIPM_TMOUT:00000100]
[SATA_TMOUT:0100]

[DIPM_TMOUT:00000100]
[SATA_TMOUT:0100]


[DIPM_TMOUT:00000100]
[SATA_TMOUT:0100]


[DIPM_TMOUT:00000100]
[SATA_TMOUT:0100]



goes on ...Endlessly

Re: Samsung HM100UX PCB Problem

April 17th, 2018, 13:56

Replace the PCB with a new one from a drive with the same FW version ? If not possible get a SATA compatible drive + PCB and adapt the PCB to the drive ?

Re: Samsung HM100UX PCB Problem

April 17th, 2018, 15:23

mikail13 wrote:[DIPM_TMOUT:00000100]
[SATA_TMOUT:0100]

ISTM that the drive is OK but is unable to communicate with the bridge IC.

Re: Samsung HM100UX PCB Problem

April 17th, 2018, 15:58

which is the Bridge IC? is that Jmicron?

can i solder sata cable and bypass bridge IC?

is PCB of SAMSUNG HM100UI compatible for convert to SATA?

Thank you very much..

Re: Samsung HM100UX PCB Problem

April 17th, 2018, 17:26

BF41-00315A and BF41-00322A (SATA), has the same layout,the same MCU and motor controller

Re: Samsung HM100UX PCB Problem

April 19th, 2018, 2:57

jermy wrote:BF41-00315A and BF41-00322A (SATA), has the same layout,the same MCU and motor controller


Yes, you are right.
Unfortunately, my PCB is BF41-00309A 00.

I have a Samsung HM321HI . its PCB is BF41-00315A-05. it looks like compatible.
swap roms but it's useless. motor can't spin.

maybe I had a mistake .

Re: Samsung HM100UX PCB Problem

April 19th, 2018, 4:15

The HDA contacts are completely different. I hope you didn't damage the preamp.

https://sep.yimg.com/ay/yhst-14437584971410/hm100ux-hm100ux-vp4-bf41-00309a-hm100u-1tb-usb-2-5-m72-339-rev-01-r00-samsung-circuit-board-fw-2.gif

https://sep.yimg.com/ay/yhst-14437584971410/hm641ji-hm641ji-s3m-rev-02-r00-c6493-g84a-aa6ag-rev-a-2-5-sata-samsung-pcb-fw-16.gif

Re: Samsung HM100UX PCB Problem

April 19th, 2018, 10:44

fzabkar wrote:The HDA contacts are completely different.

BF41-00322A does have the same HDA contacts

Re: Samsung HM100UX PCB Problem

April 19th, 2018, 14:00

donor drive is O.K. (hm321hi)
But the patient is not spinning anymore.

Motor Chips area was overheating. i immediately remove the power.
i took only 3-4 seconds. nothing fried. (i hope)

PCB looks like gone.. could i burn the rom chip ? (i hope i can't)

when i isolate the head contact motor is not turning anymore . is this good news?
is that mean Preamp's O.K.

Re: Samsung HM100UX PCB Problem

April 19th, 2018, 18:23

Bad news, and probably preamp is damaged as well.
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