User's Manual

28
29
4
5
6
7
transmit.
No
signal
The
transmitting
red light is
on, but no
voice is
heard
Receiving
green light
is on, but
no voice is
heard
Abnormal
programmi
ng
B The CTCSS/DCS signaling of both users are not the
same, set it with PC.
C Beyond the efficient communication range.
A Make sure the antenna is well connected.
B Low sensibility, trimming computer test mode .
C HF amplifier may be broken, replace it.
D The squelch level is too high, which makes the
squelch unable to switch on, reset it by PC.
E Mixer tube Q19 may be broken, replace the tube.
F Frequency Modulation IC4 may be broken, replace the
IC.
A Power-amplifier tube no power output, replace the
tube.
B Replace the microphone if it is broken.
C Operational Amplifier IC14 may be broken, replace it.
A Replace the speaker if it is broken.
B Audio power amplifier IC9 may be broken, replace it.
C Switch Tube Q48 may be broken, replace it.
D Operational Amplifier IC6 may be broken, replace it.
A Make sure the wires are well connected.
B Abnormal output of the RS-232 serial port of the
computer, check the computer .
C Abnormal connection of MIC and SPK jack, check the
jack.
Transmit ending is used to disconnect routine repeaters and auxi-
-liary facilities. If the ID transmitted is matchable with that of the repea-
-ters, the repeaters and auxiliary facilities are disconnected.
content.
If the PTT ID on the channel you select has been set with 5-Tone,
5-Tone signaling will be transmitted when making a call;or transmit
5-Tone signal by pressing the Call 1/2/3/4 button,, which can be set by
the dealer.
Transmit beginning/ending signaling (PTT ID)
The identify signal of transmit beginning/ending are used to maintain
or disconnect some repeaters or phone system.
Transmit beginning is used to connect routine repeaters and aux-
-iliary facilities. If the ID transmitted is matchable with that of the repe-
-aters, the repeaters and auxiliary facilities are available.
No.
1
2
3
Problems and troubleshooting
Problems
No display
after
switched
on.
Phase
locked loop
unlocked
Cannot
Solution
A Battery power may be insufficient. Recharge or
replace the battery pack.
B The power switch may be broken, replace the switch.
C CPU may be broken, replace the IC.
D Regulator tube Q45 may be broken replace the IC.
A Phase locked loop Crystal Oscillator X1 may be
broken, replace it.
B Oscillator tube may be broken, replace it.
C. Phase locked loop IC2 may be broken, replace the IC.
A The frequencies of both users are not the same,
select the same frequency channel again.