Motorola EP450 Service Manual

Table of Contents vii
HKLN4216A November 24, 2003
UHF (438-470 MHz) Radio Parts List.................................................................................................. 11-37
UHF (438-470 MHz) Keypad Board Parts List .................................................................................... 11-40
UHF 465-495 MHz Schematic Diagrams, Overlays,
and Parts Lists ................................................................ 11-41
Figure 11-30. UHF (465-495 MHz) Radio Circuit Block Diagram ....................................................... 11-41
Figure 11-31. UHF (465-495 MHz) Receiver Front End Schematic Diagram..................................... 11-42
Figure 11-32. UHF (465-495 MHz) Receiver Back End Schematic Diagram ..................................... 11-43
Figure 11-33. UHF (465-495 MHz) Synthesizer Schematic Diagram................................................. 11-44
Figure 11-34. UHF (465-495 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-45
Figure 11-35. UHF (465-495 MHz) Transmitter and Power Control Schematic Diagram................... 11-46
Figure 11-36. UHF (465-495 MHz) Controller Interconnect Schematic Diagram ............................... 11-47
Figure 11-37. UHF (465-495 MHz) Microprocessor Circuitry Schematic Diagram............................. 11-48
Figure 11-38. UHF (465-495 MHz) Audio Circuitry Schematic Diagram ............................................ 11-49
Figure 11-39. UHF (465-495 MHz) DC Regulation Schematic Diagram ............................................ 11-50
Figure 11-40. UHF (465-495 MHz) Keypad Board Schematic Diagram............................................. 11-51
Figure 11-41. UHF (465-495 MHz) Board Component Side View...................................................... 11-52
Figure 11-42. UHF (465-495 MHz) Board Solder Side View .............................................................. 11-53
Figure 11-43. UHF (465-495 MHz) Keypad Board ............................................................................. 11-54
UHF (465-495 MHz) Radio Parts List.................................................................................................. 11-55
UHF (465-495 MHz) Keypad Board Parts List .................................................................................... 11-58

Motorola EP450 Specifications

General

Channel Capacity	16 channels
Operating Temperature	-30°C to +60°C
IP Rating	IP54
Frequency Range	VHF: 136-174 MHz, UHF: 403-470 MHz
Weight	Approximately 350g (with standard battery)