Chapter 5 Troubleshooting - RIAN NDS3542A User Manual

Chapter 5 Troubleshooting

DIGITAL INNOVATIONS's ISO9001 quality assurance system has been approved by
CQC organization. For guarantee the products' quality, reliability and stability. All
DIGITAL INNOVATIONS products have been passed the testing and inspection
before ship out factory. The testing and inspection scheme already covers all the
Optical, Electronic and Mechanical criteria which have been published by DIGITAL
INNOVATIONS. To prevent potential hazard, please strictly follow the operation
conditions.
Prevention Measure
 Installing the device at the place in which environment temperature between 0 to
45 °C
 Making sure good ventilation for the heat-sink on the rear panel and other heat-sink
bores if necessary
 Checking the input AC within the power supply working range and the connection
is correct before switching on device
 Checking the RF output level varies within tolerant range if it is necessary
 Checking all signal cables have been properly connected
 Frequently switching on/off device is prohibited; the interval between every
switching on/off must greater than 10 seconds.
Conditions need to unplug power cord
 Power cord or socket damaged.
 Any liquid flowed into device.
 Any stuff causes circuit short
 Device in damp environment
 Device was suffered from physical damage
 Longtime idle.
 After switching on and restoring to factory setting, device still cannot work properly.