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Chapter 1 Configuration
1.1 configuration .......................................................... 1-1
Chapter 2 Circuit Description
2.1 General................................................................... 2-1
2.2 CPU........................................................................ 2-6
2.3 Oscillator................................................................ 2-13
2.4 TX/RX circuit......................................................... 2-17
2.5 Receiver Circuit...................................................... 2-21
2.6 Power Supply SW Circuit....................................... 2-26
2.7 SW REG Board (option)......................................... 2-27
2.8 ANT COUP (Antenna Coupler).............................. 2-28
2.9 Interface ................................................................. 2-34
Chapter 3 Location of Parts
3.1 Main Unit............................................................... 3-1
3.2 AT-1503................................................................. 3-5
3.3 Power Supply Unit ................................................. 3-6
Chapter 4 System Settings
4.1 Changing System Settings ...................................... 4-2
4.2 System Channels List ............................................. 4-3
4.3 Channel Programming............................................ 4-8
4.4 Power Data Setting................................................. 4-13
4.5 BC Band Filter Setting ........................................... 4-18
4.6 Setting for NBDP (DP-6)........................................ 4-19
Chapter 5 Maintenance
5.1 Periodical Checks................................................... 5-1
5.2 Self-test.................................................................. 5-2
5.3 Troubleshooting...................................................... 5-6
5.4 Measurement.......................................................... 5-8
5.5 How to Change PA Transistor ................................ 5-11
5.6 Measurements and Transistor ................................. 5-12
5.7 Location of Parts .................................................... 5-16
Specifications _________________________________ AP1
Frequency List ________________________________ AP2
Parts List ____________________________________ D-0
Contents of Drawings __________________________ S-0
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