Hi

Got a Samsung HD103SJ. Giving me the error below. Cant see any damage to PCB. Stays busy with draw on 5v and 12v. No sounds at all. Cant find anything about an LED 1701 issue but thinking it may be a motor controller issue? Have cleaned contacts but no odds.

Second issue, does this PCB have an external ROM?

Thanks








*PA VID=0000 PN=0004 Rev=0002- 785x Found
*PA VID=0000 PN=0004 Rev=0002- 785x Found
ChipRev = 63B0
U
S_0
RV En Sensor Circuit
En Shock Sensor Circuit
SO_1
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 1, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 2, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 3, RPM = 0
<MDL_SVO_SpinExt2Int_2> Failed in SpinExt2Int!
SO_2 C=3,A=0,S=1,RPM=0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 1, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 2, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 3, RPM = 0
<MDL_SVO_SpinExt2Int_2> Failed in SpinExt2Int!
SO_2 C=3,A=0,S=2,RPM=0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 1, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 2, RPM = 0
COMBO Enable Fail before COMSENS: 00002C00!
<MDL_SVOFG_SpinExt2Int> mCOMSENSRet = 3, RPM = 0
<MDL_SVO_SpinExt2Int_2> Failed in SpinExt2Int!
SO_2 C=3,A=0,S=3,RPM=0
SO_3 R Sp Err
SpinUp Fail
Combo Bad : mTIFaultStatus = 00002C00
VOP!
PK_4 C: 0 H:0
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701
LED 1701

To me it seems the spindle controller is damaged
Has ext ROM

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Hard Disk Drive (HDD), Solid State Drive (SSD, SATA, NVMe, etc), USB Flash Drive and RAID Data Recovery Specialist in Massachusetts

There is a serial flash memory (Winbond 25xxxxx) to the left of the Samsung SDRAM.

What voltages do you measure at the motor terminals?

Can you measure any voltage on the 1R0 spindle current sense resistors near the motor controller? One 1R0 array senses the spindle, the other senses the VCM current. The former would be connected to ground at one end.

Measuring VCM and Spindle Motor Current:
http://malthus.zapto.org/viewtopic.php?f=59&t=204&p=484

_________________
A backup a day keeps DR away.