Motorola EP450 Service Manual

Table of Contents xi
HKLN4216A November 24, 2003
Figure 11-6. UHF (403-440 MHz) PCB 8486635Z03-O Synthesizer Schematic Diagram ................. 11-8
Figure 11-7. UHF (403-440 MHz) Voltage Controlled Oscillator Schematic Diagram ........................ 11-9
Figure 11-8. UHF (403-440 MHz) PCB 8486635Z03-O Transmitter and Power Control
Schematic Diagram ...................................................................................................... 11-10
Figure 11-9. UHF (403-440 MHz) Controller Interconnect Schematic Diagram ............................... 11-11
Figure 11-10. UHF (403-440 MHz) PCB 8486635Z03-O Microprocessor Circuitry
Schematic Diagram ...................................................................................................... 11-12
Figure 11-11. UHF (403-440 MHz) Audio Circuitry Schematic Diagram ............................................ 11-13
Figure 11-12. UHF (403-440 MHz) PCB 8486635Z03-O DC Regulation Schematic Diagram........... 11-14
Figure 11-13. UHF (403-440 MHz) Keypad Board Schematic Diagram............................................. 11-15
Figure 11-14. UHF (403-440 MHz) PCB 8486635Z03-O Board Component Side View .................... 11-16
Figure 11-15. UHF (403-440 MHz) Board Solder Side View .............................................................. 11-17
Figure 11-16. UHF (403-440 MHz) PCB 8486635Z03-O Keypad Board............................................ 11-18
Figure 11-17. UHF (438-470 MHz) Radio Circuit Block Diagram ....................................................... 11-23
Figure 11-18. UHF (438-470 MHz) PCB 8486348Z13-C Receiver Front End Schematic Diagram ... 11-24
Figure 11-19. UHF (438-470 MHz) Receiver Back End Schematic Diagram ..................................... 11-25
Figure 11-20. UHF (438-470 MHz) PCB 8486348Z13-C Synthesizer Schematic Diagram ............... 11-26
Figure 11-21. UHF (438-470 MHz) Voltage Controlled Oscillator Schematic Diagram ...................... 11-27
Figure 11-22. UHF (438-470 MHz) PCB 8486348Z13-C Transmitter and Power Control
Schematic Diagram ...................................................................................................... 11-28
Figure 11-23. UHF (438-470 MHz) PCB 8486348Z13-C Controller Interconnect
Schematic Diagram ...................................................................................................... 11-30
Figure 11-24. UHF (438-470 MHz) Microprocessor Circuitry Schematic Diagram............................ 11-31
Figure 11-25. UHF (438-470 MHz) PCB 8486348Z13-C Audio Circuitry Schematic Diagram ........... 11-32
Figure 11-26. UHF (438-470 MHz) DC Regulation Schematic Diagram ............................................ 11-33
Figure 11-27. UHF (438-470 MHz) PCB 8486348Z13-C Keypad Option Schematic Diagram .......... 11-34
Figure 11-28. UHF (438-470 MHz) Board Component Side View...................................................... 11-35
Figure 11-29. UHF (438-470 MHz) PCB 8486348Z13-C Board Solder Side View............................. 11-36
Figure 11-30. UHF (438-470 MHz) Keypad Board ............................................................................. 11-36
Figure 11-30. UHF (465-495 MHz) Radio Circuit Block Diagram ....................................................... 11-41
Figure 11-31. UHF (465-495 MHz) PCB8486634Z02-O 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) PCB8486634Z02-O 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) PCB8486634Z02-O 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) PCB8486634Z02-O 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) PCB8486634Z02-O 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) PCB8486634Z02-O 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) PCB8486634Z02-O Keypad Board............................................. 11-54

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)