Motorola EP450 - Page 173

November 24, 2003 HKLN4216A
6 INDEX
VHF Transmitter............................................................................................................4-3
Transmit Power Amplifier ........................................................................................4-3
Antenna Switch .......................................................................................................4-3
Harmonic Filter ........................................................................................................4-3
Antenna Matching Network .....................................................................................4-4
Power Control..........................................................................................................4-4
VHF Frequency Generation Circuitry ............................................................................4-4
Fractional-N Synthesizer .........................................................................................4-5
Voltage Controlled Oscillator (VCO)........................................................................4-6
Keypad ..........................................................................................................................4-7
VHF 146-174 MHz Troubleshooting Tables ........................................................................5-1
Troubleshooting Table for Receiver...............................................................................5-1
Troubleshooting Table for Synthesizer ..........................................................................5-3
Troubleshooting Table for Transmitter...........................................................................5-4
Troubleshooting Table for Board and IC Signals...........................................................5-6
Voltage Controlled Oscillator (VCO), UHF 465-495 MHz Theory Of Operation..................9-6
Voltage Controlled Oscillator (VCO), VHF 146-174 MHz Theory Of Operation ..................4-6
Voltage Controlled Oscillator (VCO), UHF 403-440 MHz Theory Of Operation..................7-6
Voltage Controlled Oscillator (VCO), UHF 438-470 MHz Theory Of Operation..................8-6
VOX Operation Controller Theory of Operation ..................................................................3-6
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