Motorola CDM Series Detailed Service Manual page 625

Chapter 4
UHF BAND 1 (403–470 MHZ) 25–40 W LDMOS PCBS,
SCHEMATICS, AND PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards
1.1 Controller Circuits
The UHF circuits are contained on the printed circuit board (PCB) which also contains the controller
circuits. This chapter shows the schematics for the UHF circuits only. Refer to the controller section
for details of the related controller circuits. The PCB component layouts and the parts lists in this
chapter show both the controller and UHF circuit components. The UHF schematics and the related
PCB and parts list are shown in the tables below.
Table 12-1 UHF Band 1 25–40 W LDMOS PCB 8486127Z01 Diagrams and Parts Lists
PCB 8486127Z01:
Main Board Top Side
Main Board Bottom Side
SCHEMATICS
Power Amplifier 25 – 40 W
FRACN Synthesizer
Voltage Controlled Oscillator
Receiver Front-End
IF
Parts List
Controller version is T12
Table 12-2 UHF Band 1 25–40 W LDMOS PCB 8471223L02 Diagrams and Parts Lists
PCB 8471223L02:
Main Board Top Side
Main Board Bottom Side
SCHEMATICS
Power Amplifier 25 – 40 W
FRACN Synthesizer
Voltage Controlled Oscillator
Receiver Front-End
IF
Parts List
Controller version is T12
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Section 12: 4-1
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