Ремонт sfx-3405 через Debug-кабель

Спаял debug кабель по схемам

и


Разница во 2ом контакте.
Кабель работает нормально, на принтере samsung scx-3200, входит в принудительный режим, реагирует на команды. Но вот в samsug scx-3405 ни в какую, выводит вот это:
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn
Loading boot application...
[NG0x00008D21]

Boot : Egmont(C3N) V0.12 08-01-2011


Press any key to execute Monitor Program within 1 sec...
Kernel Data Read Start From Serial Flash
Kernel Data Read End
Compressed Kernel was found (0x01500000)...
Decompressing Kernel to RAM
src_addr = 0x0150000C, dest_addr = 0x00100000, ul_size = 0x0028AC00

Decompress ...
....Done
Kernel Start [0x00100000]

FW Upgrade JUMP : 00393DCC
RootWriteMonitorProgram : 000101B8
Serial Init for polling msg. sysHwInit : 651
hardWareInterFaceInit
sysHwInit2 753

sysHwInit2 760
Host Name: bootHost
Target Name: vxTarget
User: target

ExceptionCheckMessage
====================== Check Boot [0xffffffff]
//////////////////////////////////////////////////////////////
// VxWorks Stack Remain for Kernel..
mem 0
i
p
q
mem 4
mem 5
mem 8
mem 9
// VxWorks Stack Free = (00789b38)
//RAM_LOW_ADRS = 00100000
//sysPhysMemTop = 04000000
//sysMemTop = 01400000
//////////////////////////////////////////////////////////////
>

FFDrv_CheckInstall 1
pDCB->ulSPINo 0
pDCB->ulSlaveDevChannel 0


Model Code : SCX3405
Main Kernel F/W Version : V3.00.01.19
Main Kernel F/W Date : MAY-03-2013
DRAM:>
WatchDog Initialized !!!
Check PowerOn Mode PBA Port ----( GPIO1Ctrl - 0xde73c006 GPIO1Dir - 0x868cfff9
GPIO1In - 0xee00e3c2 )
Check PowerOn Mode PBA Port ----( GPIO2Ctrl - 0xfb446b7f GPIO2Dir - 0xe22400 G
PIO2In - 0x1cffa000 )
################### Normal Mode Start##########################
PrnVPUDrv Driver is Installed successfully
PrnVPUDrv Driver:Create and Added Device to DM(Handle=5714800)
*********************************************************************
[ImTMAA_RegisterItems] Error... JBIG ENC/DEC Function Needed...
*********************************************************************

USB Port ON
i
p
q
Warning!!
Warning!!
[ConAdmin] Mem Alloc Size (204800), Avail (57344) in /home/single/doldomi/E
gmont_S/GV3_System/GV3_Source/Subsystem/ConSS/App/ConIDS/IDS_Main.c 230 line
Из-за чего может быть эта проблема?