Table Of Contents - Yaesu FT-901DM Instruction Manual

Table of Contents

Table Of Contents2
General Description3
Specifications4
Controls And Switches7
Rear Apron Connections10
Interconnections12
Installation13
Base Station Installation13
Mobile Installation13
Antenna Considerations14
Operation15
Initial Check15
Frequency Selection15
Receive Operation15
Transmitter Tune-Up16
Loading Positions16
Pre-Tuning16
Final Tuning17
Ssb Operation17
Rf Speech Processor Adjustment17
Cw Operation18
Am Operation18
Fsk Operation18
Fm Operation19
Dial Calibration19
Select Switches/Memory System Operation19
Block Diagram21
Theory Of Operation22
Receiver22
Rf Unit (Pb-1720)22
Filter Unit (Pb-1716C)23
If Unit (Pb-1704)23
Fm Unit (Pb-1707)25
Carrier Unit (Pb-1706)26
Af Unit (Pb-1705)27
Nb Unit (Pb-1703)28
Transmit Circuit29
Ssb29
Filter Unit (Pb-1716)29
Cw30
Keyer Unit (Pb-1728)30
Amgc Circuit30
Vox Unit Pb-1846 (Pb-1685-3330)31
Tune Unit (Pb-1720)32
Common Circuits33
Pll Unit (Pb-1709)35
Memory Unit (Pb-1787)36
Power Supply37
Low Voltage Supply37
High Voltage Supply37
Am/Cw Filter Installation39
Keyer/Memory Unit Installation40
Maintenance And Alignment42
S-Meter Sensitivity Adjustment42
Vox Adjustment43
Cw Sidetone Level43
Carrier Balance43
Amgc (Automatic Mic Gain Control)43
Alc Level Adjustment44
If Passband Tuning Adjustment44
Apf Selectivity44
Keyer Adjustment45
Clarifier Adjustment45
Voltage Regulator Adjustment45
Bias Adjustment45
Power Output Meter Adjustment46
Final Amplifier Neutralization46
Alignment Of Transmitter Mixer/Driver And Receiver Front End Stage47
Advice On Troubleshooting The Driver/Final Stages48