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SFT3542HA Encoder Modulator User Manual
Chapter 4 Troubleshooting
SOFTEL’s ISO9001 quality assurance system has been approved by CQC organization. For
guarantee the products’ quality, reliability and stability. All SOFTEL 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
SOFTEL. 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.

Maintenance needed