Technicolor COM2000 Návod k obsluze stáhnout pdf (Strana 111)

111

If the guide acquisition state lasts longer than expected without the Tuner LEDs turning on, then

the system is probably having difficulty acquiring the APG (Advance Program Guide). In this

case, it is recommended that the installer verify proper and healthy RF levels being fed into the

RF Distribution panel. The card may appear to “forget” its old settings during this time, but they

should reappear once the situation has been remedied.

Upon successful boot-up, a COM46 will revert to its previously configured channel lineup. The

lineup is specified either by the external control server (if applicable) or automatically from the

cards themselves if the persistence setting was enabled when the system was configured

(persistence is disabled by default).

8.1.3 Normal Operation

When operating under normal circumstances, there are a few characteristics you can expect to

see in LED behavior. The first is that 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. Some

behavior, although not desirable, is still considered normal. 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 9

(guide) Tuner LED will start flashing, and the

other tuner LEDs may go dark.

A Tuner LED can exhibit one of three behaviors. 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 SWM module is

working correctly.

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 SWM 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.

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 qualified 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 9

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

1 2 ... 106 107 108 109 110 111 112 113 114 115 116 ... 127 128

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Technicolor COM2000 Návod k obsluze Strana 111