Intermec EasyCoder 501 - Page 124

123Intermec EasyCoder 501 – Service Manual Ed. 7
Chapter 17 CPU Board
17.2 Overview, cont.
The main operating principles of the power supply hardware on
the CPU board are illustrated by the following diagram. For a
detailed circuits diagram, refer to Chapter 17.6:13.
AC/DC
CONVERTER
VOLTAGE
WATCH DOG
DC/DC
CONVERTER
33 V
DC/DC
CONVERTER
24 V
DC/DC
CONVERTER
5 V
RESET
Battery &
Battery charge
circuit
P-300
P-302 D-308
P-303
4
3
2
1
1
2
V24
V40
+5V
RESET
/RESET
V24-EN
AD-VIN
VIN OK
THRESH
VEE
AD-CHARGE
DC/DC
CONVERTER
40 V