SECTION 4
TECHNICAL DESCRIPTION
4.1
RECEIVING CIRCUIT OPERATION
25
4.1.1
Antenna Switching Circuit
25
4.1.2
High Frequency Amplifier Circuit
25
4.1.3
1st Intermediate Frequency Amplifier Circuit
25
4.1.4
2nd Intermediate Frequency Amplifier Circuit
25
4.1.5
Low
Frequency
Circuit
26
4.1.6
Squelch
Circuit
26
4.1.7 Low Frequency Treatment Circuit (CPU AF
Board)
26
4.1.8
WX Alert Detection
26
4.2 TRANSMITTING
CIRCUIT
OPERATION
26
4.2.1
Microphone Amplifier Circuit
26
4.2.2
High Frequency Power Amplifier
27
4.2.3
APC
Circuit
27
4.2.4
Antenna
Monitoring
Circuit
27
4.3
PLL CIRCUIT OPERATION
27
SECTION 5
MAINTENANCE
5.1 GENERAL
30
5.1.1
How to contact Raymarine
30
5.2 PREVENTATIVE
MAINTENANCE
31
5.3
ALIGNMENTS AND SERVICE
31
5.3.1
Test
Equipment
32
5.3.2
PLL
Adjustment
32
5.3.3
Frequency Adjustment (TRANSMITTER)
33
5.3.4
Modulation
Adjustment
(TRANSMITTER) 33
5.3.5
Power Output Adjustment
33
5.3.6
RF Sensitivity Adjustment (RECEIVER)
33
5.3.7
Weather Alert Frequency Adjustment
(RECEIVER)
34
5.4
TROUBLE SHOOTING GUIDE
34
5.4.1
Master
Reset
34
SECTION 6
PARTS LIST & DRAWINGS
6.1 PART
LOCATION
LIST
37
6.2 ASSEMBLY
DRAWING
43
6.3
SCHEMATIC DRAWING
45
SECTION 7
APPENDIX
7.1
VHF MARINE CHANNEL USAGE GUIDE
52
iii
Содержание Ray 210
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Страница 19: ...7 Figure 2 2 Outline and Mounting Dimensions...
Страница 30: ...18 Figure 3 1 Layout of Controls and Connectors...
Страница 40: ...28 Fig 4 1 Block Diagram RF PCB...
Страница 41: ...29 Fig 4 2 Block Diagram CPU PCB...
Страница 55: ...43 6 2 RAY210 ASSEMBLY DRAWING...
Страница 57: ...45 6 3 SCHEMATIC DIAGRAM Fig 6 1 Schematic diagram RF PCB...
Страница 58: ...46 Fig 6 2 Schematic diagram CPU PCB l...
Страница 59: ...47 Fig 6 2 Schematic diagram CPU PCB 2...
Страница 60: ...48 Fig 6 3 RF PCB Layout Top View...
Страница 61: ...49 Fig 6 4 RF PCB Layout Rear View...
Страница 62: ...50 Fig 6 5 CPU PCB Layout Top view...
Страница 63: ...51 Fig 6 5 CPU PCB Layout Rear View...
Страница 64: ...52...
Страница 75: ...63...