Specifications

6-10 888-2857-001 5/9/13
WARNING: Disconnect primary power prior to servicing.
Section 6 Diagnostics
Platinum VAX-C Series
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
Modulator Input D Indicates input D
is present in MOD
FPGA. ATSC
SMPTE B
System LED red.
TS Input LED
yellow or red.
MPEG sync
indicator = 1
MPEG sync indicator = 0
AND
input D selected for primary or
auxiliary input
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.
ISDB-T:
Modulation Mute Indicates
modulator FPGA
has muted
System and Mute
LEDs red.
Depends on
modulation
standard.
Modulator not
muted, other
conditions ok
ISDB-T:
Table 6-4 EXT I/O & DUC Faults
Fault Log
Message
Fault Description Front Panel LEDs
Nominal Value/
Scaling
Trip Level
EXT I/O
External IO
Not Alive
Indicates external input
option board is in known
good state
System LED red. Data pattern
written/read over
SPI matches
Data pattern written/read over
SPI does not match AND Initial
check did match
DUC
Digital
Upconvertor
Not Alive
Indicates digital
upconverter FPGA is in
known good state
System and Mute
LEDs red.
Data pattern
written/read over
HPI matches
Data pattern written/read over
HPI does not match
Table 6-3 MODFPGA Modulation Specific Faults
Fault Log Message Fault Description Front Panel LEDs
Nominal Value/
Scaling
Trip Level