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Icom IC-725

Icom IC-725
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TABLE OF
CONTENTS
CAUTIONS
OPERATING
CAUTIONS
INTRODUCTION. .
UNPACKING
TABLE
OF CONTENTS.
1. CONTROL
FUNCTIONS
1-4
1
-
1
FRONT PANEL.
1
1
-
2
REAR
PANEL.-
3
1-3
MICROPHONE
(HM-12) 3
1-
4 FUNCTION
DISPLAY
4
2. INSTALLATION . .
5-6
2-
1
UNPACKING
5
2-2
MOUNTING THE TRANSCEIVER
5
2-3
ANTENNA
5
2-4
GROUNDING
5
2-5
WIRING THE DC
POWER
CABLE 5
2-
6
REAR PANEL CONNECTIONS
6
3.
SYSTEM INTERCONNECTIONS
7-12
3-
1
POWER SUPPLY CONNECTIONS 7
3-2
LINEAR
AMPLIFIER
CONNECTIONS. .
8
3
-
3
ANTENNA
TUNER CONNECTIONS ...
9
3-4
AH-3 OPERATING PROCEDURES ....
10
3-5
AFSK
TERMINAL
UNIT
CONNECTION
10
3-6
MIC
CONNECTOR INFORMATION
10
3-
7 ACC
SOCKET
INFORMATION
11
3
-8
REMOTE
JACK (CI
V)
INFORMATION
12
4. PRE-OPERATION
13-16
4-
1 INITIAL SETTINGS
13
4-2
FREQUENCY SELECTION
13
4
-
3 VFO
A AND VFO B SELECTION ....
14
4-4
RECEIVER
CONTROLS
AND
SWITCHES 15
4-
5 TRANSMITTER CONTROLS
AND SWITCH
16
5. BASIC OPERATION
17-21
5-
1 SSB OPERATION
17
5-2
CW OPERATION
18
5-3
AM OPERATION
19
5-4
FM
OPERATION
20
5-5
RIT/Af
FUNCTION
21
5-6
SPLIT OPERATION
21
6.
MEMORY CHANNEL
OPERATION
.... 22
6-1
VFO AND
MEMORY MODE
SELECTION
22
6-2
MEMORY CHANNEL SELECTION
22
6-3
MEMORY WRITING
22
6-
4 FREQUENCY TRANSFERRING
[M
VFO]
v
. .
22
7.
SCANNING OPERATION
23
7
-
1 SCAN
TYPES
23
7-
2
PROGRAMMED
SCAN
23
7
-
3 MEMORY SCAN
23
7-4
SELECTED MODE MEMORY
SCAN.
. . 23
7-
5
SUPPLEMENTAL
SCAN
SETTINGS
... 23
8.
MAINTENANCE AND
ADJUSTMENT
24-28
8-
1
DISASSEMBLING THE
TRANSCEIVER
.
24
8-2
FUSE REPLACEMENT
25
8-3
CPU RESETTING
25
8-4
CPU BACKUP BATTERY
25
8-5
CLEANING
25
8-6
TROUBLESHOOTING
.*26
8-
7
ADJUSTMENTS
27
9. INSTALLATION OF
OPTIONS
29-30
9-
1
UI-7 AM
FM UNIT
29
9-2
UT-30
PROGRAMMABLE
TONE
ENCODER UNIT
29
9-3
CW NARROW FILTERS
29
9-4
CR-64
HIGH-STABILITY CRYSTAL
UNIT
30
9-
5
MB-
23
CARRYING HANDLE
30
10. INSIDE VIEWS
31-32
10-
1 MAIN UNIT 31
10-2
PLL
UNIT
32
11. BLOCK DIAGRAM 33
12.
SPECIFICATIONS 34
13. OPTIONS
35-36
SCHEMATIC DIAGRAM
SEPARATE
ii

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