Kirisun DM588 User Manual

DM588 Service Manual
GPS
TTFF (Cold Start)
< 1 min
TTFF (Hot Start)
< 10s
Horizontal Positioning
Precision
< 10m
9. Devices for Maintenance and Test
Device Specification
Standard Signal Generator
Frequency range: 10MHz~3GHz
Modulation: Frequency modulation and external modulation
Output: -127dBm/0.1uV to > -47dBm/1mV
Power Meter
Input impedance: 50Ω
Operating frequency: 100MHz~1000MHz
Measurement range: About 50W
Frequency Deviation Meter Frequency range: 100MHz~1000MHz
Digital Voltmeter
Measurement range: DC 10mV~20V
Input impedance: High input impedance of minimum circuit
load
Oscilloscope
30MHz~100MHz
High-Sensitivity Frequency
Counter
Frequency range: 100MHz~1000MHz
Frequency stability: 0.2ppm or lower
Ammeter
20A
Audio voltmeter
Frequency range: 50Hz~10KHz
Voltage range: 1mV~10V
Audio Sweep Generator
Frequency range: 50Hz~5KHz or higher
Output: 0V~1V
Distortion Tester
Capability: 3% or lower at 1KHz
Input level: 50mV~10Vms
Spectrum Analyzer
Measurement range: 100Hz~3GHz or higher
16Ω Load Simulator About 16Ω, 5W
Stabilized Voltage Supply
Output voltage: 5V~30V
Current: 20A
10.Troubleshooting
SN
Failure Description
Troubleshooting
1 Startup failure
A. Check remaining battery. For low battery, charge or
replace it.
B. Poor contact of On/Off key. Clean metal dome arrays
with alcohol.
C. Poor contact between binding post and power supply.
Install power supply again.
D. Open fuse due to reverse connected power supply.
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Kirisun DM588 Specifications

General

Brand	Kirisun
Model	DM588
Category	Radio
Language	English