Canon PC400 Service Manual - Page 190

APPENDIX B. SIGNALS/ABBREVIATIONS LIST 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'. 1. Signals ACBTP [AE] CBSD DCBPWM DCTPWM DGT0 DGT1 DGT2 HTRD HVPAC HVPDC HVPHO HVTDC KEYR0 KEYR1 LAPWM [LID] MMCLK MMD PWOFF PWSON PUSD RELAYED RGSD [TH1] TREV VPEAK ZXDP AC BIAS TIMING PULSE COMMAND AE SIGNAL COPYBOARD DRIVE SOLENOID DRIVE COMMAND DC BIAS CONTROL COMMAND TRANSFER DC BIAS CONTROL COMMAND OSCILLATION SIGNAL 0 OSCILLATION SIGNAL 1 OSCILLATION SIGNAL 2 FIXING HEATER DRIVE COMMAND PRIMARY AC BIAS ON COMMAND PRIMARY DC BIAS ON COMMAND PRIMARY DC BIAS HIGH OUTPUT COMMAND TRANSFER DC BIAS ON COMMAND RETURN SIGNAL 0 RETURN SIGNAL 1 LAMP DRIVE COMMAND LAMP INTENSITY DETECTION SIGNAL MAIN MOTOR CLOCK PULSE SIGNAL MAIN MOTOR DRIVE COMMAND POWER OFF COMMAND POWER SWITCH ON SIGNAL PICK-UP ROLLER SOLENOID DRIVE COMMAND RELAY DRIVE COMMAND REGISTRATION SOLENOID DRIVE COMMAND THERMISTOR SIGNAL 1 TRANSFER REVERSE DC BIAS ON COMMAND VOLTAGE PEAK DETECT SIGNAL ZERO CROSS DETECTION SIGNAL COPYRIGHT © 1998 CANON INC. CANON PC400/420/430,FC200/220 REV.0 JAN.1998 PRINTED IN JAPAN (IMPRIME AU JAPON) A-3