Specifications

6-8 888-2857-001 5/9/13
WARNING: Disconnect primary power prior to servicing.
Section 6 Diagnostics
Platinum VAX-C Series
Modulator No
Timestamp (FF FFFF)
Indicates
timestamp is
missing on valid
input 1
System LED red. Timestamp is
present
Input is present, but timestamp is
missing on input 1
Modulator No
Timestamp (FF FFFF)
Indicates
timestamp is
missing on valid
input 2
System LED red. Timestamp is
present
Input is present, but timestamp is
missing on input 2
Modulator PFRU
Undisciplined
Indicates PFRU
PLL is not
disciplined for
DAB
System LED red. PFRU PLL is
disciplined
PLL is undisciplined AND dynamic
delay on AND PLL bypass off
Modulator Unresolved ETI
Timing
Indicates ETI timing
unresolved
System LED red. Current input =
correct input
Current input = wrong input
DAB: ETI Missing DAB ETI input
missing
System LED
orange.
ETI input 1 and 2
present
ETI input 1 OR ETI input 2 missing
DAB: Seamless Not
Possible
DAB Seamless
switching not
possible
System LED
orange.
Total delay of
input 1 and 2 are
equal,
Status of input 1
and 2 are equal
(total delay of input 1 and 2 are not
equal) OR
dynamic delay mode on AND (input
status 1 and 2 are not equal)
Modulator Input Signal
Loss
Indicates required
inputs are not
present in MOD
FPGA.
System and Mute
LEDs red.
Depends on
modulation
standard. Relevant
inputs present.
DAB:
Modulation Mute Indicates
modulator FPGA
has muted
System and Mute
LEDs red.
Depends on
modulation
standard.
Modulator not
muted, other
conditions ok
DAB:
Software initiated on reset,
Mute bit set in MOD FPGA
CTTB/CMMB (modulation specific)
Modulator Input A Indicates input A
is present in MOD
FPGA. ATSC ASI
HPA
System LED red.
TS Input LED
yellow or red.
MPEG sync
indicator = 1
MPEG sync indicator = 0
AND
input A selected for primary or
auxiliary input
Modulator Input C Indicates input C
is present in MOD
FPGA. ATSC ASI
LPB
System LED red.
TS Input LED
yellow or red.
MPEG sync
indicator = 1
MPEG sync indicator = 0
AND
input C selected for primary or
auxiliary input
Modulator Input B Indicates input B
is present in MOD
FPGA. ATSC
SMPTE A
System LED red.
TS Input LED
yellow or red.
MPEG sync
indicator = 1
MPEG sync indicator = 0
AND
input B selected for primary or
auxiliary input
Table 6-3 MODFPGA Modulation Specific Faults
Fault Log Message Fault Description Front Panel LEDs
Nominal Value/
Scaling
Trip Level