Motorola GM338

4-1
Section 4
VHF PCBS/SCHEMATICS/PARTS LISTS
1.0 Allocation of Schematics and Circuit Boards
1.1 Controller Circuits
The VHF circuits are contained on the Printed Circuit Board (PCB) which also contains the
Controller circuits. This Chapter shows the schematics for the VHF 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 VHF circuit components. The VHF
schematics and the related PCB and parts list are shown in the tables below.
Table 4-1 VHF 1-25W Diagrams and Parts Lists
PCB :
8486172B06 Main Board Top Side
8486172B06 Main Board Bottom Side
Page 4-3
Page 4-4
SCHEMATICS
Power Amplifier 1 - 25W
FRACN
Voltage Controlled Oscillator
Receiver Front End
IF
Page 4-5
Page 4-6
Page 4-7
Page 4-8
Page 4-9
Parts List
8486172B06 Page 4-10
Table 4-2 VHF 1-25W Diagrams and Parts Lists
PCB :
8486172B07 Main Board Top Side
8486172B07 Main Board Bottom Side
Page 4-13
Page 4-14
SCHEMATICS
Power Amplifier 1 - 25W
Voltage Controlled Oscillator
Receiver Front End
IF
FRACN
Page 4-5
Page 4-7
Page 4-8
Page 4-15
Page 4-16
Parts List
8486172B07 Page 4-17