Sharp XE-A101 Service Manual page 7

4) REWIND MOTOR
When the rewind motor is driven by the signal of the CPU.
PRINTER
MOTOR
REWIND
MOTOR
5ms 10ms
5) DRAWER
DRAWER OPEN signal :Output high signal between 50ms
6) DETECTING "LOW VOLTAGE"
•
Values obtained by AD conversion and averaging
Register value: 138 ( 2.7V) or less
139 - 154 ( 2.7V - 3.0V)
more than 154
7) DESTINATION DETECTION port
U and A version
P66
15ms
No voltage
Low voltage
OK
L