Motorola MTR2000 T5544 Instruction / Field Service Manual page 282

INPUT POWER STAGE
DC INPUT
(10.8 – 16 Vdc)
14.2 VOLT INPUT
PRE-
REGULATOR
Figure 2.
68P81096E52-A
09/30/05
INPUT REVERSE
DC VOLTAGE
FILTER PROTECTION
5.1 V
REGULATOR
OVER-VOLTAGE
CLN1223 – 250 W DC-Only Power Supply Functional Block Diagram
CLN1223 – 250W DC-Only Power Supply Module
MAIN
OUTPUT
FILTER
5.1 VOLT FEEDBACK
SENSE AND
SHUTDOWN
J3
14.2 Vdc
1
(Input Dependent)
4
TO PA
MODULE
2 GROUND
5
J2
14.2 Vdc
3
4
5 5.1 Vdc
6
TO
BACKPLANE
1
4 2
GROUND
7
8
5