Canon Booklet Trimmer-A1 Service Manual page 55

2. Signals
a. Input Signals
(1) PS106_IN (PS106 → trimmer driver PCB → trimmer DC controller PCB);
it is a home position detection signal for the upper blade.
L: at HP
H: not at HP
(2) M102_CONT (trimmer DC controller PCB → trimmer driver PCB);
it is an ON/OFF signal for M102 and M108.
L: M102/M108 ON
H: M102/M108 OFF
(3) M102_F/R (trimmer DC controller PCB → trimmer driver PCB);
it is a rotation direction switch signal for M102.
L: M102 CCW
H: M102 CW
b. Output signals
(1) DRV (trimmer driver PCB → M102);
it is a drive control signal for M102.
The direction of drive current of two signals is switched over to control the direction of
drive of M102.
COPYRIGHT© 2002 CANON INC. 2000 CANON BOOKLET TRIMMER-A1 REV.0 FEB. 2002
CHAPTER 2 BASIC OPERATIONS
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