Troubleshooting - Kenwood TM-V71A Instruction Manual

TROUBLESHOOTING

The problems described in this table are commonly encountered operational
malfunctions and are usually not caused by circuit failure.
Problem
The transceiver will
not power up after
connecting a 13.8 V
DC power supply and
pressing [ ]. Nothing
appears on the display.
The frequency cannot
be selected by turning
the Tuning control or
by pressing microphone
[UP]/[DWN].
Most keys and the
Tuning control do not
function.
Memory channels
cannot be selected
by turning the Tuning
control or by pressing
microphone [UP]/[DWN].
You cannot transmit
even though you are
pressing [PTT].
Probable Cause
1 The power cable
was connected
backwards.
2 One or more of the
power cable fuses
are open.
Memory Recall was
selected.
1 One of the Lock
functions is ON.
2 The transceiver is
in Channel Display
mode.
No data has been stored
in any Memory channel.
1 The microphone plug
was not inserted
completely into the
transceiver.
2 You selected a
transmit offset that
places the transmit
frequency outside the
allowable range.
3 The external TNC is
transmitting.
Corrective Action
1 Connect the supplied DC
power cable correctly (red
to + terminal and black to
– terminal).
2 Look for the cause of
the blown fuse(s). After
inspecting and correcting
any problems, install a
new fuse(s) with the same
ratings.
Press [VFO].
1 Unlock all of the Lock
functions.
2 With the transceiver power
OFF, press [LOW] +
Power ON to exit Channel
Display mode.
Store data in some Memory
channels.
1 Switch the power OFF,
then insert the microphone
plug until the locking tab
clicks in place.
2 Turn the offset shift
function OFF.
3 Press [PTT] after the TNC
has finished transmitting.
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