Troubleshooting - Dynascan P-72 Manual De Instalación

11.- TROUBLESHOOTING:

Problem
After connect to 13.8 VDC
power supply and press the
[ON/OFF] key,
transceiver no turn ON.
Cannot change
frequency by rotating the
[MENU] knob or pressing
the microphone
[DWN] keys.
Most keys and the [MENU]
knob no operate.
Cannot select a memory
channel by rotating the
[MENU] knob or pressing
the microphone
[DWN] keys.
No transmit when pressing
the [PTT].
If it continues the transceiver problems, consult with their salesperson or Technical Service.
Possible cause
1. The polarity (+) and (-) of
the DC power cable is inverted.
the
2. One or more fuse is blow.
the
The transceiver is under call
channel mode.
[UP] /
1. The
activated.
2. The transceiver is in channel
display mode.
Without parameters stored into
memory channel.
[UP] /
1. The microphone don´t install
correctly into transceiver.
2. The Offset is out of
transmission operation range
band.
3. The busy channel lockout
function is enabled.
lock function is
English - 37 -
Possible solution
1. Connect the DC power cable
correctly (Red cable to positive
terminal and black cable negro
to negative terminal).
2. Solve the problem that the
fuse blows. Once checked and
fixed out, install a new fuse of
the same characteristics.
Press the [VFO] key.
1. Disable de lock function.
2. Under channel mode, can
input the channel number. The
frequency can input only under
VFO mode.
Store some channel into memory
channel.
1. Power OFF the transceiver
and plug the microphone jack
until a "click" hear.
2. Disable the frequency Offset
function.
3. Disable the busy channel
lockout.