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
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