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Furuno
Marine Radar
FR-2115
Furuno FR-2115 Service Manual
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3-2
4
Loca
tio
n of Par
ts on MO
DU
LA
TOR
03P924
4A
Board
T
est points a
nd Ratings
TP N
o.
Sig
nal
Ra
ting
Con
ditio
n
03P9243
J801 # 13
& Chassi
s
MAG CUR.
Less than 0.15 V(ST-
BY),
4.6 t
o 5.3 VDC(Long range, TX)
,
adjusted by
VR1
CAUTI
ON:
If the m
agnetro
n cur
rent i
s not
set t
o withi
n th
e rati
ng, the m
agnetr
on
will b
e da
mag
e
d
.
Q4
Q3
Q2
Q1
VR1
76
78
Table of Contents
Default Chapter
15
Table of Contents
15
Chapter1. GENERAL
17
Outline
17
Boards & Major Components
18
Specifications
19
Chapter 2. BLOCK DESCRIPTION
22
Overview
22
Block Diagram of Display Unit
23
Function of each Board (Display Unit)
24
Start-Up Sequence
26
ARPA Start-Up Sequence
27
Block Diagram of SPU Board (Video Amplifier)
30
Auto Tuning Function
31
Tuning Indication
32
Manual Tuning
32
Tuning Circuit
32
Echo Averaging (EAV 1/2/3)
33
Memories & Memory Frame Priority
34
Check of ARP and RP Board Connection
36
Vs. ARP-26
36
Simple ARPA Block Diagram
37
ARPA Block Diagram
38
ARPA Target Acquisition and Tracking
39
Arpa Initial Setting Menu
40
Block Diagram of RP Board
43
INPUT/OUTPUT Data on INT Board (03P9252)
44
Sentences Receivable at J450 on INT-9170
45
Radar and ARPA Output Signal from INT-9170
46
Monitor Signal from J449
47
Power Supply Circuit (DC)
48
Power Supply Circuit (AC)
50
Scanner Unit
52
General
52
Chapter 3. ADJUSTMENT
54
Adjustment (Display Unit)
55
Location of Major Parts
55
Adjustment of CRT
58
Adjustment (Scanner Unit)
68
Fr-2125 Rtr-063
70
Fr-2115 Rtr-062
74
Chapter 4. MAINTENANCE
78
Dip Switches
79
Jumper Settings
80
LED Status
81
Notice on Replacing Major Parts
85
Program Numbers
86
How to Update System Program
86
Alternation of Power Supply
88
Chapter 5. TROUBLESHOOTING
89
Outline
89
Error Message
89
Troubleshooting Flow Charts
89
Schematic Diagrams
115
4
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Furuno FR-2115 Specifications
General
Brand
Furuno
Model
FR-2115
Category
Marine Radar
Language
English
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