Service manual

AL-2051 ELECTRICAL SECTION 12 - 5
OP-CLK LED driver control Operation section
OP-DATA LED driver control Operation section
OP-LATCH LED driver control Operation section
OUTA- Scanner motor Scanner motor phase control Optical drive section
OUTA+ Scanner motor Scanner motor phase control Optical drive section
OUTB- Scanner motor Scanner motor phase control Optical drive section
OUTB+ Scanner motor Scanner motor phase control Optical drive section
PD1 PD SW sensor 1st CS paper width sensor Not used
PMCLK_A Polygon motor Clock signal to the polygon motor LSU
/PMD Polygon motor Polygon motor drive signal LSU
/PMRDY Polygon motor Polygon motor ON/OFF detection signal LSU
POD POD sensor Paper transport detection Paper exit section
/POFF Low voltage power Output power control Power section
PPD1 PPD sensor Paper transport detection Paper transport section
PPD2 PPD2 sensor Paper transport detection Fusing section
/PR Heater lamp Power relay control Power section
PSL Power save LED Operation section
PSW Start button control Operation section
RESET_NB Network Board RESET signal Network section
/RRS 1st transport solenoid Paper transport section
/RSV_SOL Reverse solenoid RSPF section
RTH_IN Thermistor Fusing section thermistor temperature detection Fusing section
SCOD SCOD sensor RSPF cover open sensor RSPF section
SELIN1 Select signal 1 HC151 select signal Operation section
SELIN2 Select signal 2 HC151 select signal Operation section
SELIN3 Select signal 3 HC151 select signal Operation section
/SFTMT0 Shifter motor Shifter motor phase control Shifter motor section
/SFTMT1 Shifter motor Shifter motor phase control Shifter motor section
/SFTMT2 Shifter motor Shifter motor phase control Shifter motor section
/SFTMT3 Shifter motor Shifter motor phase control Shifter motor section
/SHOLD Laser Laser APC signal LSU
SPID SPID sensor RSPF UN paper entry sensor RSPF section
SPMT_0 RSPF motor RSPF motor phase control RSPF section
SPMT_1 RSPF motor RSPF motor phase control RSPF section
SPMT_2 RSPF motor RSPF motor phase control RSPF section
SPMT_3 RSPF motor RSPF motor phase control RSPF section
SPPD SPPD sensor RSPF transport detection RSPF section
/SPUS Paper feed solenoid RSPF section
SRJD SRJD sensor RSPF paper exit sensor RSPF section
/SRVC Reverse clutch RSPF section
STROBE LED driver control Operation section
/SYNC Laser Horizontal sync signal from the LSU LSU
/TC HV TC signal Transfer charger grid control Process section
TCS Toner sensor Toner quantity detection Developing section
TMA_O Toner motor Toner motor phase control Toner motor drive section
TMB_O Toner motor Toner motor phase control Toner motor drive section
UAT_CTS_NB Network Board Network section
UAT_RTS_NB Network Board Network section
UAT_RxD_NB Network Board Network section
UAT_TxD_NB Network Board Network section
USB_NB_D- Network Board Network section
USB_NB_D+ Network Board Network section
VCL Copy lamp Copy lamp control Scanner unit section
/VFMCNT Fan speed signal Fan rotation speed control Optical section
VFMOUT Fusing fan Fan drive signal Optical section
/VIDEO Laser Laser drive signal LSU
(VSAMP) AFE AFE control signal Scanner unit section
Signal name Name Function/Operation Section