Chapter 3 Block Description
3.1 General 3-1
3.2 Block Diagrams 3-2
1. Antenna and Communication Units 3-2
2. Terminal Unit 3-3
3.3 Functions of each board 3-4
3.4 Antenna Unit (IC-112) 3-5
3.5 Communication Unit (IC-212) 3-7
1. TX board (16P0157) 3-7
2. RF CON board (16P0147) 3-7
3. CPU board (16P0148) 3-9
Chapter 4 Location of Parts
4.1 Antenna Unit (IC-112) 4-1
4.2 Communication Unit (IC-212) 4-3
4.3 Distress Alert Unit/Received Call Unit (IC-302/303) 4-5
Chapter 5 Maintenance
5.1 PV (Performance Verification) Test 5-1
5.2 LED Check 5-4
5.3 Check Points 5-5
Measurement of DEMOD output 5-5
5.4 DIP Switch Setting 5-6
External Alarm Setting 5-6
5.5 Memory Contents Backed-up by Battery 5-7
Communication Unit: EE-PROM 5-7
Communication Unit: S-RAM(U40) 5-7
Terminal Unit Flash ROM 5-7
Memory for Menu Settings 5-8
5.6 Updating System Program 5-9
1. Terminal Unit 5-9
2. Communication Unit 5-10
5.7 Replacement of Backup Battery 5-11
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