DR600 Service Manual
Voltage Range: 1mV~10V
Audio Generator
Measurement Range: 50Hz~5KHz or higher
Output: 0~1V
Spectrum Tester
Capacity: 3% or lower at 1KHz
Input Level: 50mV~10Vms
Spectrum Analyzer
Measurement Rnage: 100~3GHz or higher
5
Ω
dummy load
100W
Voltage Stabilization Power
Supply
Output Voltage: 5V~30V; Current: 20A
Integrated Tester
HP8921, IFR3920
9. Troubleshooting
No.
Problems
Causes and Solution
1
Short coverage
1. Check the duplexer isolation, and whether the insertion loss
meets the requirement.
2. Check if there is any feeder connecting damage or abnormality.
3. Check if the antenna frequency range matches with the
repeater, and check if the antenna is broken.
4. Check if there is high power radio antenna beside the repeater
2
Unable to repeat
1. Check if the settings such as terminal frequency, CTCSS,
CDCSS, color code, repeater slot are correct.
2. Check if there is interference on the uplink frequency.
3. Beyond the communication scope.
3
Unable to receive
1. Bad antenna contact. Please fix the antenna tightly.
2. Inconsistent frequency between Tx and Rx. Please select the
same frequency.
3. Beyond the communication scope.
4
Rx green light is on
without being able to
repeat
Check if the settings such as terminal frequency, CTCSS, CDCSS,
color code, repeater slot are correct.
47
Содержание DR600
Страница 1: ......
Страница 37: ...DR600 Service Manual 33 ...
Страница 109: ...DR600 Service Manual Appendix 2 PCB View and Schematic Diagram Figure 1 Rx Module Top Board PCB View 105 ...
Страница 110: ...DR600 Service Manual Figure 2 Rx Module Bottom Board PCB View 106 ...
Страница 111: ...DR600 Service Manual Figure 3 Tx Module Top Board PCB View 107 ...
Страница 113: ...DR600 Service Manual Figure 6 Baseband Mainboard Top Board PCB View 109 ...
Страница 114: ...DR600 Service Manual Figure 7 Baseband Mainboard Bottom Board PCB View 110 ...
Страница 115: ...DR600 Service Manual Figure 8 Front Panel Top Board PCB View Figure 9 Front Panel Bottom Board PCB View 111 ...
Страница 116: ...DR600 Service Manual Figure 10 Power Board Top Board PCB View 112 ...
Страница 117: ...DR600 Service Manual Figure 11 Accessory Board Top Board PCB View Figure 12 Accessory Board Bottom Board PCB View 113 ...
Страница 118: ...DR600 Service Manual Figure 13 Enternet Board Top Board PCB View 114 ...
Страница 119: ...DR600 Service Manual Figure 14 Enternet Board Bop Board PCB View 115 ...
Страница 150: ...DR600 Service Manual Figure 21 Baseband Mainboard Schematic Diagram 146 ...