N
O.
Problem
Solution
B. The high-frequency amplifying tube Q18 is broken.
Please change it.
C. The squelch level is set to high Please reset the
squelch level.
D. The mixed tube Q19 is broken. Please change it.
E. The FM IC6 is broken. Please change IC.
5
The red transmission
Indicator lights but no
sound is heard.
A. Power module IC1 damaged, no power output,
please change the module.
B. MIC damaged, please change it.
6
The green receiving
indicator lights but no
sound is heard.
A. The speaker is broken. Please change it.
B. The audio power amplifierIC7 is broken. Please
change IC.
NO.
Problem
Solution
1
Power on
Failure
A. The pow er cable is not connected w ith the accum ulator or the host
reliably. Please connect the pow er cable reliably.
B. The protective tube of pow er cable is burnt out. Please change it.
C . The pow er button is of poor contact. Please change the silica
gel button or PC B button.
D . The rechargeable battery is out of pow er. Please recharge or
change a new one.
E. C PU is broken, Please change the IC .
2
Phase lock loop
unlocked
(Beeping)
A. C hannel frequency beyond the range, reset channel data.
B. The crystal X1 of phase lock loop is broken. Please change it.
C . The oscillator tube is broken. P lease change it.
D . The IC 3 of phase lock loop is broken. Please change IC .
3
No talkback
A. The frequency is not right. Please reselect the channel
of the sam e frequency.
B. The C TC SS/D C S code is not the sam e. Please reset it.
C . It is out of the effective com m unication range.
4
No receiving
signal
A. The antenna is not in good contact. Please fasten the antenna
head.
clone mode. If the function is disabled, it will enter the user
mode.
2.
Connect the slave radio with the wired clone cable first, and
then turn on.
3.
Press button [P2] on the master radio for starting clone. During
transmitting the data, the master radio lightens red, and the
slave radio lightens green and indicates "P". After the slave
radio receiving all the data, the red light on the master radio is
off, and the slave radio restarts.
4.
You can keep cloning according to step 3 above.
13. Trouble Shooting Guide
14. Major Specifications
Frequency Range:
136MHz~174MHz (MX-8000V)
438MHz~490MHz (MX-8000U)
Channel Number:
8
Channel Spacing:
25kHz (wide band)
12.5kHz (narrow band)
Operating Voltage:
13.6V Dc± 10%
Operating Temperature:
-25°C / -+55°C
Dimension:
150 x 53 x 130 mm
Weight:
1030g
12
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