Operation Mode - Acroprint ES700 Service Manual

7-5. Operation Mode

Operation mode and functions are as follows:
Operation state
AC power
CPU state
(clock)
PWF (P00)
When a power failure causes the output voltage of the 10V-regulator IC to drop below about 7V,
PWF(P00) is set to "L."
This allows the unit to enter into Mode B.
A
Normal operation
All functions operation
ON
Operation mode
(4.19 MHz)
H
7-4
B
Power failure operation
Time update
Memory retention only
OFF
Halt mode
(32.768 kHz)
L