Chapter 3
CONTROLLER/KEYPAD SCHEMATICS
1.0 Allocation of PCBs and Schematic Diagrams
The Controller circuits are contained on the printed circuit board (PCB) containing the RF circuits.
This Chapter shows the schematics for the Controller circuits only, refer to the relevant RF section
for details of the related RF circuits, the PCB component layouts and the complete radio parts lists.
The Controller schematic diagrams and the related PCBs are shown below.
Table 3-1 PCBs and Schematics
PCBs :
8486342Z13_C VHF2
8486635Z03_O UHF1
8486348Z13_C UHF1
8486634Z02_O UHF3
8466565A01_O Keypad top/bottom side Page 3-7
SCHEMATICS
Controller Interconnect Schematic
Microprocessor Circuit Schematic
Audio Circuit Schematic
DC Regulation Schematic
Keypad Schematic
Speaker/Microphone Schematic & Parts List
Page 3-3
Page 3-4
Page 3-5
Page 3-6
Page 3-8
Page 3-9
PART LIST
8466565A01_O Keypad Page 3-9
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