Motorola Professional GP640 Информация о сервисе - Страница 29

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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.

1.2

Voice Storage Facility

The Voice Storage facility is fitted to the GP1280 radio as standard and the schematics, component

layout and parts list for these circuits are shown in this Chapter. The Voice Storage facility may be

fitted to other radios in the GP Series as an option board; reference must be made to the Option

Board manual in this case. The Voice Storage schematic and the related PCB is shown in Table 4-2

below.

PCB :

SCHEMATICS

Parts List

VHF PCB/SCHEMATICS/PARTS LISTS

Table 4-1 VHF Diagrams and Parts Lists

8486062B12 Main Board Top Side

8486062B12 Main Board Bottom Side

8486062B14 Main Board Top Side

8486062B14 Main Board Bottom Side

Controls and Switches

Receiver Front End

Receiver Back End

Synthesizer

Voltage Controlled Oscillator

Transmitter

8486062B12

8486062B14

Page 4-3

Page 4-4

Page 4-23

Page 4-24

Page 4-5

Page 4-6

Page 4-7

Page 4-8

Page 4-9

Page 4-10

Page 4-11

Page 4-25

Chapter 4