Samsung ML-1645 - 6 System Diagram

Service Manual
System Diagram
6-1
Samsung Electronics
6. System Diagram
Block / Connection Diagram_Peacock22 / Robin
Main
S/W
INLET
24VS2
5V
DGND DGND
nP_FEED Fuser_On
24VS1 24VS1
N.C
Feed_Sensor
24VS124V
SMPS
24VS2
5V
DGND DGND
nP_FEED Fuser_On
24VS1 24VS1
N.C
SOL
24VS2
PickUp_Sol
a1
1
a2
2 3
a3
4
a4
b1 b2 b3 b4
5 6 7 8
DGND
HYPER_RXD
HYPER_TXD
3.3V
5V
DCU_DATA
DCU_CLK
DGND
PICK_UP_CLT
HYPER
DCU
DEV_DATA
N.C DEV_CLK
DGND
3.3V
Jupiter4e
CRUM
FUSER_FAN
THERMISTOR_IN
N.C
DGND
THERMISTOR
DEVE
N.C
HVPS
nTHV_EN
DGND
24VS2
24VS2
24VS1
nP_EXIT
3.3V
5V
nKEY_IN
BIAS_PWM
nFUSER_FAN
MHV_PWM
THV_READ
THV_PWM
nP_EMPTY
N.C
nLED_TONER
24VS1
nLED_READY
nLED_ERROR
nTHV_EN
DGND
24VS2
24VS2
24VS1
nP_EXIT
3.3V
5V
nKEY_IN
BIAS_PWM
nFUSER_FAN
MHV_PWM
THV_READ
THV_PWM
nP_EMPTY
N.C
24VS1
nLED_READY
nLED_ERROR
nLED_TONER
FAN_Vcc
GND
Ready/ErrorToner
THV
OPC
DEV
MHV
SUP
LSU
LSU_CLK
24VS2
nHSYNC
5VS
DGND
DAC_OUT
nPMOTOR
GND
nLREADY
VDO+
LSU_CLK
24VS2
nHSYNC
5VS
DGND
DAC_OUT
nPMOTOR
GND
nLREADY
VDO+
C M
D-
D+
GND
GND
VBUS
GND
USB
SDRAM
8MB
12MHz
DC
CY25811
3.3V Reg
DC
1.8V Reg
Peacock Hardware Team
Digital Priting Div.
Samsung Electronics
Jan.21.2008
MT
BLDC_EN
BLDC_READY
BLDC_CLK
BLDC_DIR
MAIN_MOTOR
DGND
DGND
BLDC_BREAK
DGND
24VS2
24VS2
DGND
nTONER_RX
TONER_TX
5V
24VS224VS1
24VS2 / nNEW_DEV (Robin Only)
Robin Only
SMPS_FAN
FAN_Vcc
GND
GND
nCRU_DET (Peacock22 Only)
nCRU_DET
GND
MICRO S/W
TONER_TX_RX
LSU_SHLSU_SH
N.CN.C
LD_ENABLE LD_ENABLE
VDO- VDO-