Motorola 6864115B62-C, Detailed Service Manual

Page: 187 / 452

Chapter 4
VHF PCB/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 :
8486172B04 Main Board Top Side
8486172B04 Main Board Bottom Side
Page 4-5
Page 4-6
SCHEMATICS
Power Amplifier 1 - 25W
FRACN
Voltage Controlled Oscillator
Receiver Front End
IF Page 4-7
Page 4-8
Page 4-9
Page 4-10
Page 4-11
Parts List
8486172B04 Page 4-12
Controller version is T2
Table 4-2 VHF 1-25W Diagrams and Parts Lists
PCB :
8486172B06 Main Board Top Side
8486172B06 Main Board Bottom Side
Page 4-15
Page 4-16
SCHEMATICS
Power Amplifier 1 - 25W
FRACN
Voltage Controlled Oscillator
Receiver Front End
IF Page 4-17
Page 4-18
Page 4-19
Page 4-20
Page 4-21
Parts List
8486172B06 Page 4-22
Controller version is T5
Table 4-3 VHF 1-25W Diagrams and Parts Lists
PCB :
8486172B07 Main Board Top Side
8486172B07 Main Board Bottom Side
Page 4-25
Page 4-26
SCHEMATICS
IF
FRACN Page 4-27
Page 4-28
Parts List: 8486172B07 Page 4-29
Controller version is T7