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UNPACKING
TABLE OF CONTENTS
ii
qwe
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
■ Front panel ...................................... 1
■ Microphone (HM-36) ....................... 8
■ LCD display .................................... 9
■ Screen menu arrangement ........... 10
■ Rear panel .................................... 11
2 INSTALLATION AND
CONNECTIONS .................. 13–20
■ Unpacking .................................... 13
■ Selecting a location ....................... 13
■ Grounding ..................................... 13
■ Antenna ........................................ 13
■ Required connections ................... 14
■ Advanced connections ................. 15
■ Power supply connections ............ 16
■ Linear amplifier connections ......... 17
■ External antenna selector or
antenna tuner connections ........... 18
■ FSK and AFSK (SSTV)
connections ..................................19
■ Remote jack (CI-V) information ..... 20
3 FREQUENCY SETTING ..... 21–24
■ When first applying power
(CPU resetting) ............................. 21
■ Initial settings ................................ 21
■ VFO description ............................ 22
■ Frequency setting with the
tuning dial ..................................... 23
■ Direct frequency entry with
the keypad .................................... 23
■ Advanced tuning functions ............ 24
4
RECEIVE AND TRANSMIT
... 25–40
■ Mode selection ............................. 25
■ Twin PBT operation ....................... 25
■ Auto notch function ....................... 26
■ Noise reduction ............................. 26
■ Noise blanker ................................ 26
■ APF function ................................. 27
■ CW reverse mode ......................... 27
■ RTTY reverse mode ...................... 27
■ CW pitch control ........................... 27
■ Filter selection .............................. 28
■ RIT and ∂TX ................................. 29
■ Dualwatch operation ..................... 30
■ Split frequency operation .............. 31
■ Quick split function ........................ 32
■ Monitor function ............................ 33
■ VOX function .................................33
■ Meter function ............................... 34
■ Speech compressor ...................... 34
■ SWR reading ................................ 34
■ Electronic CW keyer ..................... 35
■ Memory keyer ............................... 36
■ Spectrum scope screen ................ 37
■ Band memory
(for automatic antenna selection)
....37
■ Repeater operation ....................... 38
■ Dial lock function ........................... 38
■ Antenna tuner operation ............... 39
■
Optional external tuner operation
....40
5 MEMORY OPERATION ...... 41–46
■ Memory channels ......................... 41
■ Memory channel selection ............ 41
■ Memory channel screen ............... 42
■ Memory channel programming .....43
■ Frequency transferring .................. 44
■ Memory names ............................. 45
■ Memory clearing ........................... 45
■ Memo pads ................................... 46
6 SCANS ................................ 47–50
■ Scan types .................................... 47
■ Preparation ................................... 47
■ Programmed scan operation ......... 48
■ ∂F scan operation ........................ 48
■ Fine programmed scan/
fine ∂F scan .................................. 49
■ Memory scan operation ................ 49
■ Select memory scan operation ..... 50
■ Setting select memory channels ...50
7 CLOCK AND TIMERS ........ 51–52
■ Setting the current time ................. 51
■ Setting power-on time ................... 51
■ Setting power-off period ................ 52
■ Timer operation ............................ 52
8 SET MODE .......................... 53–60
■ Set mode description .................... 53
■ Level set mode .............................. 54
■ Display set mode .......................... 54
■ Timer set mode ............................. 55
■ Miscellaneous (others) set mode .. 55
9
OPTION INSTALLATIONS
.... 61–62
■ Opening the transceiver’s case ..... 61
■ UT-102 VOICE SYNTHESIZER
UNIT
..............................................61
■ Optional IF filters ........................... 62
■ CR-502 HIGH STABILITY
CRYSTAL UNIT
...............................62
10 MAINTENANCE .................. 63–65
■ Troubleshooting ............................63
■ Fuse replacement ......................... 64
■ Clock backup battery
replacement .................................. 64
■ Tuning dial brake adjustment ........ 65
■ Frequency calibration
(approximate)................................65
11 INTERNAL VIEWS .................... 66
12 SPECIFICATIONS .................... 67
13 OPTIONS .................................. 68