FP520 Service Manual
Page 4 of 64
Chapter 2 External View and Functional Keys
2.1 External View
As figure 1 shows
Fig. 1
2.2 Functional Key Description
1. Side Button 1
(
Programmable Button
)
2. PTT
(
PUSH-TO-TALK
)
Button
Press and hold the PTT button and talk to the microphone to transmit; release it to listen.
3. Side Button 2
(
Programmable Button
)
4. Antenna
5. LED Indicator
The LED indicator lights up red when transmitting, and lights up green when receiving. In the condition of low
battery, the LED indicator flashes red.
6. Channel Knob
Rotate to select channel 1-16.
7. Emergency Button
8. On/Off/Volume Control Knob
Rotate clockwise to turn on the radio, and counter-clockwise until a click is heard to turn off.
When the radio is on, rotate to adjust the volume.
9. Speaker
10. Microphone
11. Speaker/ Microphone Interface
Open the cover to connect the radio with the external speaker and microphone.
Summary of Contents for FP520
Page 1: ... 键入文档副标题 gh 选取日期 在此处键入文档的摘要 摘要通常是对文档内容的简短总结 在此处键入文档的摘要 摘要 通常是对文档内容的简短总结 ...
Page 44: ...FP520 Service Manual Page 43 of 64 Figure 1 FP520 01 Mainboard Schematic Diagram 136 174MHz ...
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Page 54: ...FP520 Service Manual Page 53 of 64 Figure 4 FP520 02 Mainboard Schematic Diagram 400 470MHz ...
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Page 64: ...FP520 Service Manual Page 63 of 64 Figure 7 KBC 51 7 4V Electrical Schematic Diagram ...