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Section-6 Diagnostics

October 17, 2013

6‐8

WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004

ModulatorInput

FrameTiming

Unsync

Indicatesinp

ut

circuithasnot

synchronizedinDVB

MODFPGA

SystemandMu

te

LEDsred.

DVBMODFPGA

tputprocessing

resetlinelow

DVBMODFPGAou

tput

processingresetlinehigh

Setfaultand

muteRF.

ModulatorIn

put

Indicatesinp

utAis

presentinMOD

FPGA.ATSCASIHPA

SystemLEDred.TS

InputLEDyellowor

red.

MPEGsy

ncindicator

=1

MPEGsy

ncindicator=0

AND

inputAselect

edfor

primaryorauxiliaryinput

Setfa

ult.

ModulatorIn

put

Indicatesinp

utCis

presentinMOD

FPGA.ATSCASILPB

SystemLEDred.TS

InputLEDyellowor

red.

MPEGsy

ncindicator

=1

MPEGsy

ncindicator=0

AND

inputCse

lectedfor

primaryorauxiliaryinput

Setfa

ult.

ModulatorIn

put

Indicatesinp

utBis

presentinMOD

FPGA.ATSCSMPTEA

SystemLEDred.TS

InputLEDyellowor

red.

MPEGsy

ncindicator

=1

MPEGsy

ncindicator=0

AND

inputBselect

edfor

primaryorauxiliaryinput

Setfa

ult.

ModulatorIn

put

Indicatesinp

utDis

presentinMOD

FPGA.ATSCSMPTEB

SystemLEDred.TS

InputLEDyellowor

red.

MPEGsy

ncindicator

=1

MPEGsy

ncindicator=0

AND

inputDselect

edfor

primaryorauxiliaryinput

Setfa

ult.

ModulatorIn

put

SignalLoss

Indicatesre

quired

inputsarenot

presentinMOD

FPGA.

SystemandMu

te

LEDsred.

Dependson

dulation

standard.Relevant

inputspresent.

DVB‐T:

SFNmo

deANDhierarchy

:

Autoswit

chmode:HPor

LPbadonbothASI1and

ASI2,

Manualswit

chmode:HP

orLPbadonselected

input,

SFNmo

deANDnon‐

hierarchy:Autoswitch

mode:HPbadonboth

inputs,

Manualswit

chmode:HP

badonselectedinput

Setfa

ultand

muteRF.

Modulation

Indicatesmodulator

FPGAhasmuted

SystemandMute

LEDsred.

Dependson

dulation

standard.

Modulatornot

muted,other

conditionsok

DVB‐T:

Mutebi

tsetinMOD

FPGA

Setfa

ultand

muteRF.

FLO(m

odulationspecific)

MUTE:PFRU

tsideSFN

Limit

ErrorofPFRU1pps

relativetoreference

istoolarge

SystemLEDre

Errorof1ppsis

with

inuserlimit

(fromGUI)

Errorof1ppsisabove

userlimit(fromGUI)AND

SFNmode

Setfa

ult.

MUTE:PFRU1

PPSMissin

Required1pps

referenceismissing

SystemLEDre

1PP

Sreferenceis

present

Selected1PPSref

erence

ismissing(externalor

fromGPS)ANDautomute

=trueANDSFNmode

Setfa

ult.

MUTE:Holdov

er

Timeout

Flywheeltimeout

exceeded

SystemLEDre

Withinfly

wheel

timeout

(Flywheelti

meisabove

userlimit(fromGUI)or

neverdisciplined)

ANDau

tomute=true

ANDSFNmode

Setfa

ult.

MUTE:

dulatorFatal

Error

FPGAfat

alerror SystemLEDred.

FPGAdat

aerrorbit

notset

FPGAfat

alerrorbitset

ANDau

tomute=true

ANDSFNmode

Setfault.

MUTE:

dulatorCore

Stall

FPGAcoresta

ll SystemLEDred.

FPGAco

restallbit

notset

FPGAco

restallbitset

ANDau

tomute=true

ANDSFNmode

Setfault.

Table6‐4MODFPGAModulationSpecificFaults

FaultLog

Message

FaultDescription FrontPanelLEDs

NominalValue/

Scaling

TripLevel Action

Screen/

Tab

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