TROUBLESHOOTING 15

The following chart is designed to help you correct

If you are unable to locate the cause of a problem or

problems which are not equipment malfunctions.

solve it through the use of this chart, contact your near-

 

 

 

est Icom Dealer or Service Center.

 

 

 

 

 

 

 

 

PROBLEM

POSSIBLE CAUSE

 

SOLUTION

REF.

 

Power does not come

DC power cable is improperly

Reconnect the power cable correctly.

p. 19

SUPPLY

on when [PWR] key is

connected.

 

 

 

pushed.

 

 

 

 

 

Fuse is blown.

 

Check for the cause, then replace the

p. 139

 

 

 

 

 

 

 

fuse with a spare one.

 

POWER

 

 

 

(Fuses are installed in two places. One is

 

 

 

 

installed in the DC power cable and the

 

 

 

 

 

 

 

 

 

 

other is installed in the FRONT unit.

 

 

 

Battery is exhausted if you are using

Check the battery voltage.

 

 

a 12 V battery as the power source.

 

 

 

 

 

 

 

 

 

No sound comes from

Volume level is set too low.

 

Rotate [AF] clockwise to obtain a suit-

pgs. 1,

 

the speaker.

 

 

able listening level.

25, 33

 

 

The squelch is closed.

 

Rotate [SQL] counterclockwise to

pgs. 1,

 

 

 

 

open the squelch.

25, 35

 

 

The transceiver is in the transmitting

Release [PTT] on the microphone or

 

 

condition.

 

check the SEND line of an external

 

 

 

 

 

unit, if connected.

 

 

 

An external speaker or headphones

Check the external speaker or head-

p. 18

 

 

are connected.

 

phone plug connection.

 

 

 

 

 

 

RECEIVE

Sensitivity is low.

The antenna is not connected properly.

Reconnect to the antenna connector.

 

The antenna feed line is cut or shorted.

Check the feed line and correct any

 

 

 

 

 

 

improper conditions.

 

 

 

The antenna is not properly tuned.

Push [TUNE/CALL] to manually tune

pgs.

 

 

 

 

the antenna.

116, 117

 

 

The attenuator function is activated.

Push [P.AMP/ATT] to turn the

p. 74

 

 

 

 

function OFF.

 

 

Receive audio is distor-

The operating mode is not selected

Select a suitable operating mode.

p. 34

 

ted.

correctly.

 

 

 

 

 

The PBT function is activated.

 

Push [PBT/M-ch/RIT(CLR)] for 1 sec.

p. 79

 

 

 

 

to clear the PBT function.

 

 

 

 

 

 

 

Receive signal is distor-

Noise blanker function is activated.

Push [NB/ADJ] to turn the function

p. 80

 

ted with strong signals.

 

 

OFF.

 

 

 

Preamp is activated.

 

Push [P.AMP/ATT] to turn the

p. 74

 

 

 

 

function OFF.

 

 

 

 

 

 

 

14

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140

Page 149
Image 149
Icom IC-7000 instruction manual Troubleshooting, Est Icom Dealer or Service Center