Icom IC-756, Instruction Manual

Page: 3 / 72

UNPACKING
TABLE OF CONTENTS
ii
q w e r
t
Accessories included with the IC-756: Qty.
q
DC power cable (OPC-025A) .............................. 1
w
Hand microphone (HM-36) .................................. 1
e
Spare fuses (FGB 20 A) ...................................... 2
r
Spare fuse (FGB 5 A) .......................................... 1
t
CW keyer plug (AP-330) ...................................... 1
IMPORTANT ..................................... i
PRECAUTIONS ................................ i
EXPLICIT DEFINITIONS .................. i
TABLE OF CONTENTS ................... ii
UNPACKING .................................... ii
1 PANEL DESCRIPTION ......... 1–12
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Front panel ...................................... 1
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Microphone (HM-36) ....................... 8
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LCD display .................................... 9
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Screen menu arrangement ........... 10
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Rear panel .................................... 11
2 INSTALLATION AND
CONNECTIONS .................. 13–20
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Unpacking .................................... 13
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Selecting a location ....................... 13
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Grounding ..................................... 13
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Antenna ........................................ 13
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Required connections ................... 14
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Advanced connections ................. 15
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Power supply connections ............ 16
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Linear amplifier connections ......... 17
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External antenna selector or
antenna tuner connections ........... 18
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FSK and AFSK (SSTV)
connections .................................. 19
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Remote jack (CI-V) information ..... 20
3 FREQUENCY SETTING ..... 21–24
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When first applying power
(CPU resetting) ............................. 21
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Initial settings ................................ 21
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VFO description ............................ 22
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Frequency setting with the
tuning dial ..................................... 23
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Direct frequency entry with
the keypad .................................... 23
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Advanced tuning functions ............ 24
4 RECEIVE AND TRANSMIT ... 25–40
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Mode selection ............................. 25
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Twin PBT operation ....................... 25
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Auto notch function ....................... 26
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Noise reduction ............................. 26
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Noise blanker ................................ 26
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APF function ................................. 27
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CW reverse mode ......................... 27
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RTTY reverse mode ...................... 27
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CW pitch control ........................... 27
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Filter selection .............................. 28
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RIT and
∂
TX ................................. 29
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Dualwatch operation ..................... 30
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Split frequency operation .............. 31
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Quick split function ........................ 32
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Monitor function ............................ 33
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VOX function ................................. 33
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Meter function ............................... 34
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Speech compressor ...................... 34
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SWR reading ................................ 34
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Electronic CW keyer ..................... 35
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Memory keyer ............................... 36
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Spectrum scope screen ................ 37
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Band memory
(for automatic antenna selection) .... 37
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Repeater operation ....................... 38
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Dial lock function ........................... 38
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Antenna tuner operation ............... 39
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Optional external tuner operation .... 40
5 MEMORY OPERATION ...... 41–46
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Memory channels ......................... 41
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Memory channel selection ............ 41
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Memory channel screen ............... 42
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Memory channel programming ..... 43
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Frequency transferring .................. 44
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Memory names ............................. 45
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Memory clearing ........................... 45
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Memo pads ................................... 46
6 SCANS ................................ 47–50
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Scan types .................................... 47
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Preparation ................................... 47
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Programmed scan operation ......... 48
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∂
F scan operation ........................ 48
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Fine programmed scan/
fine
∂
F scan .................................. 49
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Memory scan operation ................ 49
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Select memory scan operation ..... 50
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Setting select memory channels ... 50
7 CLOCK AND TIMERS ........ 51–52
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Setting the current time ................. 51
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Setting power-on time ................... 51
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Setting power-off period ................ 52
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Timer operation ............................ 52
8 SET MODE .......................... 53–60
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Set mode description .................... 53
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Level set mode .............................. 54
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Display set mode .......................... 54
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Timer set mode ............................. 55
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Miscellaneous (others) set mode .. 55
9 OPTION INSTALLATIONS .... 61–62
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Opening the transceiver’s case ..... 61
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UT-102
VOICE SYNTHESIZER
UNIT
.............................................. 61
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Optional IF filters ........................... 62
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CR-502
HIGH STABILITY
CRYSTAL UNIT
............................... 62
10 MAINTENANCE .................. 63–65
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Troubleshooting ............................ 63
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Fuse replacement ......................... 64
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Clock backup battery
replacement .................................. 64
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Tuning dial brake adjustment ........ 65
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Frequency calibration
(approximate) ................................ 65
11 INTERNAL VIEWS .................... 66
12 SPECIFICATIONS .................... 67
13 OPTIONS .................................. 68