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FELCOM 12
Furuno FELCOM 12 Service Manual
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4-3
Anten
na base cover removed
Antenna board
(16P0146)
Q7: Pre-driver
(PTB20078)
Q8: Driver
(MRF16006)
Q9: P
A
(MRF16030)
U4: Circulator
U2: A
VR
(AN7812F)
Q1: LNA
(A
TF10136)
Q2: RX RF
(A
T41486)
Figure
4-5 Antenna
Board
4.2
Commu
nicat
ion Unit (IC-212)
BUZZER
DMC 1
DMC 2
ANT
24V DC
BREAKER
DTE 1
DTE 2
D
ATA
NMEA
GND
Figure 4-6
Communication Unit, Rear Panel
54
56
Table of Contents
Default Chapter
13
Table of Contents
13
Chapter 1 Inmarsat System
16
System Overview
16
LES ID List
18
Inmarsat C Services
19
Store-And-Forward Telex Service
19
Communication Services
20
Code
21
Communications Network
22
Inmarsat C Channels and Signals
24
Message & Signal Transfer
25
Ship-Originated Call
25
Shore-Originated Call
27
Log in
29
Log out
29
Distress Alert
30
Different Classes of Inmarsat-C MES
31
Class 1 MES
31
Class 2 MES
31
Class 3 MES
31
Chapter 2 Channel Types and Signal Prosessing
32
Channel Types
32
NCS CC/CES TDM Channel
33
Signalling Channel
34
SES Message Channel
36
Signal Processing
37
Signal Processing Flow for each Channel
37
Chapter 3 Block Description
41
General
41
Block Diagrams
42
Antenna and Communication Units
42
Terminal Unit
43
Functions of each Board
44
Antenna Unit (IC-112)
45
Communication Unit (IC-212)
47
TX Board (16P0157)
47
RF con Board (16P0147)
47
CPU Board (16P0148)
49
Chapter 4 Location of Parts
53
Antenna Unit (IC-112)
53
Communication Unit (IC-212)
55
Distress Alert Unit/Received Call Unit (IC-302/303)
57
Chapter 5 Maintenance
58
PV (Performance Verification) Test
58
LED Check
61
Check Points
62
Measurement of DEMOD Output
62
DIP Switch Setting
63
External Alarm Setting
63
Memory Contents Backed-Up by Battery
64
Communication Unit: EE-PROM
64
Communication Unit: S-RAM(U40)
64
Terminal Unit Flash ROM
64
Memory for Menu Settings
65
Updating System Program
66
Terminal Unit
66
Communication Unit
67
Replacement of Backup Battery
68
Chapter 6 Troubleshooting
69
Self-Test
69
Description of Status Monitor Display
71
Analysis of NG Display
73
Error Messages
78
Appendix 1 Menu List
79
Other manuals for Furuno FELCOM 12
Operator's Manual
182 pages
Brochure & Specs
4 pages
Installation Manual
43 pages
5
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Furuno FELCOM 12 Specifications
General
Brand
Furuno
Model
FELCOM 12
Category
Marine GPS System
Language
English
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