Icom IC-7100 Advanced Instructions

Also see for IC-7100: Finger touch operation Specification Basic Manual Service manual Instruction manual

Contents

Icom IC-7100 Advanced Instructions Manual pdf 351 page image

19 MAINTENANCE19-12Transceiver powerDPROBLEM POSSIBLE CAUSE SOLUTION REF.Power does not turn ONwhen [PWR] is pushed.• The power cable is improperly connect-ed.• A fuse is blown.• Power output voltage is not correct.• Reconnect the DC power cable correctly.• Correct the cause, then replace the fusewith an equivalent fuse. (Fuses are in-stalled in the DC power cable and in theinternal PA unit.)• Use power supply with 13.8 V DC output.Sec. 2Sec. 19Sec. 2Transmit and receiveDPROBLEM POSSIBLE CAUSE SOLUTION REF.No sound from the speak-er.• The audio volume level is too low.• The squelch is closed.• The tone squelch is ON in the FM mode.• The external speaker is not connected.• A head-phone or external speaker is con-nected to [PHONES/SP].• Rotate the [AF] control clockwise to ob-tain a suitable listening level.• Rotate the [RF/SQL] control to 12 o’clockposition to open the squelch.• Turn OFF the Tone squelch.• Correct the cause, then correct.• Disconnect the head-phone or externalspeaker.Sec. 3Sec. 3Sec. 4Sec. 2Sec. 2Sensitivity is too low, andonly strong signals can beheard.• The antenna is not properly connected.• The attenuator is turned ON.• The RF gain sensitivity is set to minimum.• The squelch is closed.• The antenna for another band is select-ed.• Reconnect to the antenna connector.• Push P.AMP ATT to turn OFF the attenua-tor.• Rotate the [RF/SQL] control to 12 o’clockposition.• Rotate the [RF/SQL] control to adjust thesquelch level.• Select an antenna suitable for the operat-ing frequency.Sec. 2Sec. 5Sec. 3Sec. 3Sec. 2Received audio in the SSBmode is unclear or distort-ed.• The side band setting is incorrect betweenUSB and LSB.• The PBT function is activated.• Toggle between USB and LSB in theMode selection screen.• Push [M-CH], and then hold down [CLR]for 1 second to clear the PBT function.Sec. 3Sec. 5No contact can be madewith another station.• The RIT function is turned ON.• The Split function and/or Duplex functionare turned ON.• Push RIT to turn OFF the function.• Push [SPLIT] (in the “M1” screen) or[DUP] (in the “M2” screen) to turn OFFthe function.Sec. 5Sec. 6Output power is too low. • An amateur band is not selected.• TX power is set too low.• The mic gain is set too low. (SSB)• The antenna is bad, or the coaxial cable isshorted or open.• The microphone is bad, or the [MIC] con-nector is shorted.• The antenna SWR is more than 3.• Select an amateur band.• Push MIC/RF PWR , and then rotate the[BANK] control clockwise.• Push MIC/RF PWR , and then rotate the [M-CH] control clockwise.• Correct the cause.• Correct the cause.• Set the antenna SWR less than 3.Sec. 3Sec. 3Sec. 3Sec. 2Sec. 2Sec. 6Transmit signal is unclearor distorted.• The MIC gain is adjusted too high.• The Speech compressor level is adjustedtoo high.• Rotate [M-CH] so that the ALC meterreading stays within the ALC zone.• Rotate the Dial so that the COMP me-ter reading stays within the COMP levelzone.Sec. 3Sec. 6The following chart is designed to help you correctproblems which are not equipment malfunctions.If you are unable to locate the cause of a problem,or solve it through the use of this chart, contact yournearest Icom Dealer or Service Center.Troubleshooting