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13.4
Normal Operation
When operating under normal circumstances, there are a few characteristics you can expect to
see in LED behavior.
The PWR LED should always be lit. If the PWR LED is not lit and the chassis is powered,
check the COM46 for proper installation in the chassis.
During rainstorms or other conditions that may obstruct satellite communications, the receiver
may lose contact and be unable to receive guide data. At this point, the 9th (guide) tuner LED
will start flashing, and the other tuner LEDs may go dark.
A Tuner LED can exhibit one of three behaviors.
1)
A tuner which is locked on to a signal and streaming video to a valid IP destination will
be in the ON state. The COM46 cards will maintain a lock on the signal at all times if
the signal strength and quality is within specifications (-25 to - 55 dBm per transponder)
and the connection between the COM46 and the SWiM module is working correctly.
2)
An intermittently flashing Tuner LED indicates that the tuner is either having problems
locking to a satellite or it cannot stream video. Failure to lock to a signal usually
indicates a fault in the RF plant upstream or a problem in the communications link
between the SWiM and the COM46. Failure to stream video is likely to occur when you
are trying to tune to a channel that DIRECTV provides and you are capable of receiving,
but you have not purchased the content streaming on that channel.
3)
A tuner whose LED is off is not locked onto anything. This most likely indicates that the
tuner is not set to stream anything. It could also mean that the card could not find the
channel specified, in which case you should check for the following:
The channel is one that DIRECTV actually provides.
You have entered the channel number correctly.
You are authorized to receive the channel.
If, after having reviewed the above checklist, the tuner LEDs are not lit when they are expected
to be, or if the 9th tuner LED begins flashing at a regular rate it is an indication that the card has
detected a problem. The remaining lit LEDs will display the code associated with the problem.
