Canon PC980 Service Manual - Page 358

What follows below is a list of signals and abbreviations used in the chapters of the manual and circuit diagrams. The abbreviations within parentheses represent analog signals, which cannot be expressed in terms of '1' or '0'. B. SIGNALS AND ABBREVIATIONS 1. Signals ACBIAS [AE] AEREF BIAS_PWM BIAS_S CLK32K CPUSD DPD DV_AC_ON DV_DC_ON E0_DT FM1D HEAT_ERR HEAT_OFF HEAT_PWM HEAT_TRG LAMP_DETECT LAMP_ON LHP LNSLD MFSLD MLOCK MMCLK MMD PAC_OUT PAC_S PDC_PWM PDC_S PDP PR_DC_ON PUSLD PWM_1KHz PWOFF RGSLD RLOFF RPD SB_LP SC_A SC_B SC_COM SCHP SFPD T_FEEDBACK T_FW_DRV AC BIAS OSCILLATION signal AE SENSOR OUTPUT signal AE SENSOR REFERENCE signal DC BIAS CONTROL signal DC BIAS MONITOR signal TRANSFORMER CONTROL signal CASSETTE PICKUP SOLENOID DRIVE signal DELIVERY PAPER DETECTION signal DEVELOPING AC BIAS ON signal DEVELOPING DC BIAS ON signal E0 DETECTION signal SCANNER COOLING FAN DRIVE signal FIXING HEATER ERROR signal FIXING HEATER OFF signal FIXING HEATER DUTY signal FIXING HEATER DRIVE signal LAMP ACTIVATION DETECTION signal SCANNING LAMP ACTIVATION signal LENS HOME POSITION signal LENS SOLENOID DRIVE signal MULTIFEEDER PICKUP SOLENOID DRIVE signal MAIN MOTOR CONSTANT SPEED signal MAIN MOTOR CLOCK PULSE signal MAIN MOTOR DRIVE signal PRIMARY CORONA AC BIAS signal PRIMARY CORONA AC DETECTION signal DC BIAS CONTROL signal DC VOLTAGE MONITOR signal VERTICAL PATH ROLLER PAPER DETECTION signal PRIMARY CHARGING DC BIAS ON signal PICKUP CLUTCH SOLENOID DRIVE signal SCANNING LAMP INTENSITY ADJUSTMENT signal POWER SWITCH OFF signal REGISTRATION CLUTCH SOLENOID DRIVE signal RELAY DRIVE signal PRE-REGISTRATION ROLLER PAPER DETECTION signal SIDE BLANK EXPOSURE LAMP ON signal SCANNER MOTOR PULSE signal A SCANNER MOTOR PULSE signal B SCANNER MOTOR DRIVE signal SCANNER HOME POSITION signal SINGLE-FEEDER PAPER DETECTION signal TRANSFER BIAS VOLTAGE DETECTION signal TRANSFER DC BIAS CONTROL signal T_FW_ON T_FW_S T_REV_ON TH1 TH2 TRANSFER DC BIAS ON signal TRANSFER CURRENT DETECTION signal TRANSFER POSITIVE DC BIAS ON signal FIXING THERMISTOR signal SCANNER THERMISTOR signal 2. Abbreviations AER AE (MEASUREMENT) ROTATION INTR INITIAL ROTATION LSTR LAST ROTATION SCFW SCANNER FORWARD SCRV SCANNER REVERSE STBY STANDBY COPYRIGHT © 1999 CANON INC. CANON PC800s/900s REV.0 AUG. 1999 PRINTED IN JAPAN (IMPRIME AU JAPON) A-3