COPYRIGHT © 1998 CANON INC. CANON DADF-A1 REV.0 DEC. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON) vCHAPTER 5 TROUBLESHOOTINGAPPENDIXI. STANDARDS ANDADJUSTMENTS ........................ 5-1A. Mechanical System ............... 5-1B. Electrical System ................. 5-17II. TROUBLESHOOTING.............. 5-20A. TroubleshootingMalfunctions ........................ 5-20III. ARRAIGMENT OF THE ELECTRI-CAL PARTS .............................. 5-24A. Motors, Solenoids, andSensors ............................... 5-24B. PCB ..................................... 5-26IV. VARIABLE RESISTORS, LIGHT-EMITTING DIODES, AND CHECKPINS BY PCB ...........................5-27A. DADF Controller PCB..........5-27B. Indicator PCB ...................... 5-29C. DIP Switch Functions ..........5-30V. SELF DIAGNOSIS.................... 5-32A. DADF Self Diagnosis ..........5-32A. GENERAL TIMING CHART ...... A-1B. NAMES AND ABBREVIATIONS OFSIGNALS ................................... A-4C. DADF-A1 GENERAL CIRCUITDIAGRAM .................................. A-5D. DADF CONTROLLER CIRCUITDIAGRAM .................................. A-6E. DISPLAY BOARD .................... A-13F. SPECIAL TOOLS..................... A-14G. SOLVENTS AND OILS ............ A-15