Maintenance and Troubleshooting

LCD Alarm or Warning

Meaning / Possible Cause

Message

 

 

 

No PAT

No Program Allocation Table detected in input carrier (or

 

terrestrial interface). Check that legal ISO transport is

 

available from uplink mux. Often, this indication may appear

 

when the connection between the uplink transport mux and

 

the DVB modulator is lost.

 

 

No PCR

No Program Clock Reference found, either in video or stand-

 

alone PID. Check uplink mux or that program's encoder.

 

 

No PMT

No Program Map Table found for a program listed in PAT. This

 

could be a fault in the uplink mux.

 

 

No RF signal

No carrier lock with low RF signal power indication. There

 

may be a disconnected RF signal. Check connection and

 

check that LNB has DC power.

 

 

No SDT entry

No Service Descriptor Table, or the table is corrupt or missing

 

proper entries. Uplink mux may not support this DVB feature

 

or may have fault.

 

 

No valid software

No valid application software available in either the primary or

 

backup flash positions. Unit will need service.

 

 

No VBI Data FN LM

VBI data not found in video user data or PID for Field N line M

(N=field number;

If any is expected, contact network TOC.

M=line number)

 

 

 

PAT disappeared

Formerly valid Program Allocation Table ceases to be

 

received or becomes corrupt. See "No PAT" indication.

 

 

PAT version changed

Version number in Program Allocation Table has changed but

 

no change to program lineup.

 

 

PCR disappeared

Formerly valid Program Clock Reference ceases to be

 

received or becomes corrupt. See "No PCR" indication.

 

 

PCR jitter

Excessive jitter in Program Clock Reference values. This may

 

degrade timing of output video signals. Check uplink encoder

 

for that program.

 

 

PCR value jump

Unrecoverable transition in incoming Program Clock

 

Reference values. This has forced re-initialization of services.

 

Check uplink encoder for that program.

 

 

PMT disappeared

Formerly valid Program Map Table ceases to be received or

 

becomes corrupt. See "No PMT" indication.

 

 

PMT version changed

Version number on one or more of the Program Map Tables

 

has changed but no change to PID lineup.

 

 

Prog blackout on ASI

Some services available from satellite not routed to IRD ASI

 

output per program mapping instructions from COMPEL.

 

This is not necessarily a fault.

 

 

Program in blackout

Selected program not available for local decompression

 

because this program content was blocked to ASI transport

 

output by network. Contact network TOC.

 

 

56

800032-01 Rev. G

www.wegener.com

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Wegener Communications 4600 manual No Program Allocation Table detected in input carrier or

4600 specifications

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