7412MAINTENANCE12PROBLEM POSSIBLE CAUSE SOLUTION REF.Some memory channelscannot be selected via thetuning dial.Scan does not operate.Transmission is automati-cally cut off.Transmission continueseven when the PTT is re-leased.The function display showserroneous information.• The memory channel number has not yet beenprogrammed.• The squelch is open.• Only 1 memory channel is programmed or otherchannels are set as skip channels.• Priority watch is activated.• Time-out timer is activated.• One-touch PTT function is activated.• The CPU is malfunctioning.• Select the channel via the microphone keypad tocheck whether the channel has been programmedor not.• Set the squelch to the threshold point.• Program other memory channels or cancel thememory skip function in the desired channels.• Cancel the watch.• Set the timer to OFF.• Turn the function OFF.• Reset the CPU.—p. 16pgs. 30,31, 44p. 47p. 61p. 21p. 67 Fuse replacementIf the fuse blows or the transceiver stops functioning, find thesource of the problem if possible, and replace the damagedfuse with a new, rated one (FGB 20 A) as shown at right. 20 Afuse
