Icom IC-M56 [18/24] Maintenance

Содержание

6 MAINTENANCE 6 1 TROUBLESHOOTING PROBLEM 14 POSSIBLE CAUSE SOLUTION No power Power connector has a poor contact Blown fuse Check the connector pin Check the polarity of the power connection then replace the fuse No sound from the speaker SQUELCH is turned too far clockwise An external speaker or cable is broken if connected Rotate SQUELCH counterclockwise Unplug the external speaker jack Sensitivity is low and only strong signals are audible Antenna feedline is cut or short circuited Check the feedline and correct any improper condition Bad connection at the antenna connector Check the antenna connector and clean the center conductor of the plug Cannot transmit at high power or cannot transmit at all Transmission is restricted on some channels See page 9 for details The displayed channel does not change Channel 16 is selected Push DIAL then rotate the channel selector The memory channel cannot be changed Memory channels have not been programmed Program at least two memory channels See p 10 Scanning or dual watch does not function Channel 16 is displayed The squelch opens Memory channels have not been programmed if operating the memory scan Push DIAL then start scanning Rotate SQUELCH clockwise Program at least two memory channels See p 10 The function display occasion ally displays erroneous infor mation The internal CPU has malfunctioned Reset the CPU See p 15

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