INSTRUCTION MANUAL HF TRANSCEIVER i78 This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. IMPORTANT READ THIS INSTRUCTION MANUAL CAREFULLY before attempting to operate the transceiver. EXPLICIT DEFINITIONS DEFINITION Personal injury, fire hazard or electric R WARNING shock may occur. CAUTION NOTE Equipment damage may occur. Inconvenience only. No risk of per of personal injury, fire or electric shock. WORD SAVE THIS INSTRUCTION MANUAL. This manual contains important safety and operating instructions for the IC-78. PRECAUTIONS R WARNING HIGH VOLTAGE! NEVER attach an antenna or internal antenna connector during transmission. This may result in an electric shock or burn. During maritime mobile operation, keep the transceiver and microphone as far away as possible from the magnetic navigation compass to prevent erroneous indications. BE CAREFUL! The heatsink will become hot when operating the transceiver continuously for long periods. BE CAREFUL! If a linear amplifier is connected, set the transceiver's RF output power to less than the linear amplifier's maximum input level, otherwise, the linear amplifier will be damaged. Use Icom microphones only (supplied or optional). Other manufacturer's microphones have different pin assignments, and connection to the IC-78 may damage the transceiver. R NEVER apply AC to the [DC13.8V] jack on the transceiver rear panel. This could cause a fire or ruin the transceiver. R NEVER apply more than 16 V DC, such as a 24 V battery, to the [DC13.8V] jack on the transceiver rear panel. This could cause a fire or ruin the transceiver. R NEVER let metal, wire or other objects touch any internal part or connectors on the rear panel of the transceiver. This may result in an electric shock. NEVER expose the transceiver to rain, snow or any liquids. AVOID using or placing the transceiver in areas with temperatures below ­10°C (+14°F) or above +60°C (+140°F). Be aware that temperatures on a vehicle's dashboard can exceed 80°C (+176°F), resulting in permanent damage to the transceiver if left there for extended periods. AVOID placing the transceiver in excessively dusty environments or in direct sunlight. AVOID placing the transceiver against walls or putting anything on top of the transceiver. This will obstruct heat dissipation. During mobile operation, DO NOT operate the transceiver without running the vehicle's engine. When the transceiver power is ON and your vehicle's engine is OFF, the vehicle's battery will soon become exhausted. Make sure the transceiver power is OFF before starting the vehicle. This will avoid possible damage to the transceiver by ignition voltage spikes. i TABLE OF CONTENTS IMPORTANT .............................................................. i EXPLICIT DEFINITIONS ........................................... i PRECAUTIONS ........................................................ i 1 TABLE OF CONTENTS ....................................... 1 SUPPLIED ACCESSORIES ..................................... 1 2 PANEL DESCRIPTION ................................... 2 ­ 7 s Front panel ....................................................... 2 s Function display ............................................... 4 s Rear panel ........................................................ 5 s Microphone (HM-36) ........................................ 7 3 INSTALLATION AND CONNECTIONS ......... 8 ­ 12 s Unpacking ........................................................ 8 s Selecting a location .......................................... 8 s Grounding ......................................................... 8 s Antenna connection .......................................... 8 s Required connections ....................................... 9 s Power supply connections .............................. 10 s Advanced connections .................................... 11 s External antenna tuners ................................. 12 4 OPERATION ................................................. 13­ 27 s Selecting a channel ......................................... 13 s Frequency indication ....................................... 14 s Lock function ................................................... 14 s Scan function................................................... 14 s Basic voice receive and transmit..................... 15 s Mode selection ................................................ 15 s RF gain and Squelch....................................... 15 s Functions for transmit...................................... 16 s Functions for receive ....................................... 19 s Filter selection ................................................. 21 s Filter setting..................................................... 22 s Functions for CW............................................. 23 s Functions for RTTY ......................................... 25 s Channel comment programming ..................... 27 5 SET MODE ................................................... 28­ 33 s General............................................................ 28 s Quick set mode items...................................... 29 s Initial set mode items....................................... 31 1 6 EXTRA FEATURES ...................................... 34­ 36 s Instruction........................................................ 34 s VFO operation ................................................. 34 s 2-Tone alarm operation ................................... 36 7 INSTALLATION AND CONNECTIONS ........ 37­ 38 s Opening the transceiver's case ...................... 37 s Optional bracket and carrying handle.............. 37 s CR-338 HIGH STABILITY CRYSTAL UNIT ......... 38 s Optional IF filters ............................................ 38 8 MAINTENANCE ........................................... 39­ 40 s Troubleshooting .............................................. 39 s Fuse replacement ........................................... 40 s Resetting the CPU .......................................... 40 9 REMOTE JACK INFORMATION .................. 41­ 42 s CI-V remote control ......................................... 41 s Data cloning between transceivers ................. 42 10 SPECIFICATIONS ........................................... 43 12 OPTIONS .................................................. 44­ 45 SUPPLIED ACCESSORIES The transceiver comes with the following accessories. Qty. q DC power cable .................................................... 1 w Hand microphone (HM-36) .................................. 1 e Fuse (FGB 20 A; for DC cable) ............................ 1 r Fuse (FGB 4 A; internal use) ............................... 1 q w e r 1 2 PANEL DESCRIPTION s Front panel Speaker Function Display @1 @0 !9 !8 !7 q PWR !6 !5 !4 !3 !2 w e rt yu i o !0 !1 q POWER SWITCH [PWR] ¯ Push momentarily to turn power ON. · Turn the optional DC power supply ON in advance. ¯ Push for 1 sec. to turn power OFF. ¯ While pushing and holding [SET], push [PWR] to enter the initial set mode. (p. 28) w MICROPHONE CONNECTOR [MIC] Accepts supplied or optional microphone. · See p. 45 for appropriate microphones. · See p. 7 for microphone connector information. e HEADPHONE JACK [PHONES] (p. 11) Accepts headphones. · When headphones are connected, the internal speaker or connected external speaker does not function. r AF CONTROL [AF] (inner control) Varies the audio output level from the speaker. t RF GAIN/SQUELCH CONTROL [RF/SQL] (outer control; pgs. 15, 31) Adjusts the squelch threshold level. The squelch removes noise output from the speaker (closed condition) when no signal is received. · The squelch is available for all modes. · The control can be set as the squelch plus RF gain controls or squelch control only (RF gain is fixed at maximum) in initial set mode. y RIT CONTROL [RIT] (inner control; p. 19) ¯ Shifts the receive frequency ±1.2 kHz for clear reception of an off frequency signal. · Rotate the control clockwise to increase the frequency, or rotate the control counterclockwise to decrease the frequency. " " appears on the display. 2 u IF SHIFT CONTROLS [SHIFT] (outer control; p. 20) Shifts the center frequency of the receiver's IF passband. · Rotate the control clockwise to shift the center frequency higher, or rotate the control counterclockwise to shift the center frequency lower. i LOCK SWITCH [LOCK] (p. 14) Push momentarily to turn the dial lock function ON and OFF. · The dial lock function electronically locks the channel selector. o CHANNEL SELECTOR Selects an operating channel, sets conditions in the quick/initial set mode items, etc. !0 PREAMP SWITCH [P.AMP] (p. 19) Push to turn the preamp ON or OFF. !1 FC SWITCH [CH] ¯ Push to change the indication, channel comment or stored frequency. (p. 14) This key action only for some versions. ¯ Push for 1 sec. to entering into VFO mode. (p. 35) !2 MEMORY CHANNEL UP/DOWN SWITCHES [ DN]/[UP ] ¯ Push to select the operating channel. (p. 13) ¯ Push for 1 sec. to start scanning. (p. 14) ¯ Push to select the quick/initial set mode items while quick/initial set mode is selected. (p. 28) ¯ Push to select the digit of channel comment while editing. (p. 27) PANEL DESCRIPTION 2 !3 ATTENUATOR SWITCH [ATT] (p. 19) Push to turn the 20 dB attenuator function ON and OFF. !4 TUNER SWITCH [TUNER] (p. 18) ¯ Push to turn the antenna tuner function ON and OFF. ¯ Push for 1 sec. to manually tune the tuner. · An optional antenna tuner must be connected. · When the tuner cannot tune the antenna, the tuning circuit is bypassed automatically after 20 sec. !5 SET SWITCH [SET] ¯ Push for 1 sec. to enter the quick set mode. (p. 28) ¯ Push and hold [SET], then push [PWR] to enter the initial set mode. (p. 28) ¯ Push to change the meter function; (p. 16) · PO: indicates the relative RF output power. · ALC: Indicates ALC level. · SWR: Indicates the SWR over the transmission line. !6 MIC COMPRESSOR SWITCH [COMP] (p. 17) Turn the Mic. compressor function ON and OFF. !7 KEYPAD The keypad can be used for several functions as described below: ¯ [0] to [9] -- For entering operating channel number. (p. 13) -- Selects a character during channel comment programming. (p. 27) ¯ [ENT] -- Direct channel number input. (p. 13) ¯ [TXF] -- Transmit frequency indication. (p.14) -- Selects a space and changes the editing digit during channel comment programming. (p. 27) !8 NOISE BLANKER SWITCH [NB] (p. 19) ¯ Turns the noise blanker ON and OFF. The noise blanker reduces pulse-type noise such as that generated by automobile ignition systems. This function is not effective against non pulse-type noise. ¯ Push [NB] for 1 sec. to enter the noise blanker level setting condition. !9 TONE SWITCH [TONE] This key action may differ according to version. ¯ Selects the call channel and emits a distress alarm tone from the speaker. (p. 36) ¯ Transmits a distress alarm or alarm testing signal when pushed for 1 sec. (p. 36) · Cancel the distress alarm tone emission, or distress alarm transmission. ¯ Selects the tuning step item in the quick set mode directly. ¯ No function is assigned. @0 CALL SWITCH [CALL] ¯ Push to select call channel. · Push again to return to previous condition. @1 MODE SWITCH [MODE] (p. 15) Push to change an operating mode. · Push [MODE] for 1 sec. during SSB mode to switch between LSB or USB. · Push [MODE] for 1 sec. during CW or RTTY mode, to switch between CW and CW reverse or RTTY and RTTY reverse. " " appears on the display. 3 2 PANEL DESCRIPTION s Function display !6 q w e r t y !5 !4 !3 !2 !1 !0 u io q LOCK INDICATOR (p. 14) Appears when the dial lock function is in use. w RECEIVE INDICATOR Appears while receiving a signal or when the squelch is open. e TUNE INDICATOR ¯ Appears or disappears when the connected automatic tuner is tuned completely, depending on connected antenna tuner type. ¯ Flashes while tuning. r TRANSMIT INDICATOR ¯ Appears while transmitting. ¯ Flashes while transmit frequency is indicated. t ALARM INDICATOR This indicator appears only some versions. Appears while 2-tone alarm is emitting or transmitting y FUNCTION INDICATORS ¯ "P.AMP" appears when preamp is activated. ¯ "ATT" appears when the RF attenuator is activated. ¯ "NB" appears when the Noise Blanker is activated. ¯ "BK" appears when the semi break-in function is selected in quick set mode. ¯ "F-BK" appears when the full break-in function activates in CW mode. (p. 23) ¯ "VOX" appears when the VOX function is selected in quick set mode. ¯ "COM" appears when the speech compressor activates in SSB mode. ¯ "SCAN" appears during scanning. · Flashes when scan is paused. u SIGNAL/SQL/RF-GAIN METER ¯ Functions as an S-meter while rece ...