SUMAVISION EMR Operation Introduction
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rate for output programs.
7.1.4 6-adjacent-frequncy QAM modulation card output can’t
be received by STB.
Reasons for such fault:
The output level of 6-adjacent-frequency QAM modulation card is too high;
Wrong receiving parameters of the STB are set.
Solution:
Lower the output level of 6-adjacent-frequency QAM modulation card to be in the range
that STB can receive the output; or increase the number of attenuator to lower the output
level to be in the range that STB can receive the output.
Check and set the demodulation parameters of the STB as identical to the output
parameters of 6-adjacent-frequency QAM modulation card.
7.1.5 The main Gigabit card inputs no system bit rate.
Reasons for such fault:
The input program stream is interrupted.
Solution:
Check the head-end program sources and network cable connection of the device.
7.1.6 The main Gigabit card outputs abnormally
Reasons for such fault:
The input program stream is interrupted.
The connection with the output destination device is broken.
Solution:
Check the head-end program sources; check whether the connection between the device
and the destination device is normal.
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