Specifications
5/9/13 888-2857-001 6-5
WARNING: Disconnect primary power prior to servicing.
Section 6 Diagnostics
Platinum VAX-C Series
Modulator 
25MHz Clock
Indicates 25 MHz clock is 
present in MOD FPGA
System and Mute 
LEDs red.
25 MHz clock edges 
are detected
25 MHz clock edges are not 
detected
Modulator 
54MHz Clock
Indicates 54 MHz clock is 
present in MOD FPGA
System and Mute 
LEDs red.
54 MHz clock edges 
are detected
54 MHz clock edges are not 
detected
Modulator User 
Force Mute
Indicates user has forced 
mute from GUI
System and Mute 
LEDs red.
Mute not selected on 
GUI
Mute selected on GUI
Table 6-3  MODFPGA Modulation Specific Faults
Fault Log Message Fault Description Front Panel LEDs
Nominal Value/
Scaling
Trip Level
DVB (modulation specific)
ASI 1 HP Indicates error on 
ASI 1 HP in MOD 
FPGA for DVB
System LED red. No errors Input present: 
Uncorrected byte errors,
Corrected byte errors,
Buffer overflow,
MIP errors ((CRC error OR MIP 
missing) AND (SFN or MFN AND 
MIP control))
Input not present:
ERRW_MODFPGA_PRBS_ON 
=false
ASI 1 LP Indicates error on 
ASI 1 LP in MOD 
FPGA for DVB
System LED red. No errors Input present: 
Uncorrected byte errors,
Corrected byte errors,
Buffer overflow
Input not present:
Hierarchy mode AND 
ERRW_MODFPGA_PRBS_ON 
=false
ASI 2 HP Indicates error on 
ASI 2 HP in MOD 
FPGA for DVB
System LED red. No errors Input present: 
Uncorrected byte errors,
Corrected byte errors,
Buffer overflow,
MIP errors ((CRC error OR MIP 
missing) AND (SFN or MFN AND 
MIP control))
Input not present:
ERRW_MODFPGA_PRBS_ON 
=false
Table 6-2  MODFPGA Faults
Fault Log 
Message
Fault Description Front Panel LEDs
Nominal Value/
Scaling
Trip Level










