User's Manual

11 of 12 2008-6-2
5 The red
transmission
Indicator lights but
no sound is heard.
The power-amplifier tube Q23/Q25 is broken, resulting in no power output. P
l
change it.
The microphone is broken. Please change it.
The power amplifier U201 is broken. Please change it.
6 The green receiving
dicator lights but no
sound is heard.
The speaker is broken. Please change it.
The audio power amplifier TDA1519C is broken. Please change IC.
14. Main Specifications
Frequency Range: 136MHz—174MHz 340MHz--400MHz 400MHz--470MHz 470MHz--520MHz
Channel Number: 128 pieces (divided into 16 groups and at most 16 channels per group)
Channel Spacing: 25kHz (broad band)/ 20kHz (medium band) /12.5kHz (narrowband)
Operating Voltage: 13.6V DC±10%
Operating Temperature: -30℃-+55℃
External Dimension: machine only: 170mm*52mm*170mm; plus stationary support: 185mm*62mm*170mm
Weight: machine only: 1450g; plus stationary support: 1690g