Microwave Radio Communications SCM4000, Technical Reference Manual

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Troubleshooting 4-5 SCM4000 Operator’s Guide/Tech Ref Manual
E26C SMPTE PLL SMPTE Phase Lock Loop - The
phase lock loop is having trouble
locking to the incoming signal.
This could happen if the SMPTE
signal has excessive jitter or if the
signal is non-conforming (i.e., off
frequency). • Verify that you have a clean
SMPTE stream.
• Contact technical staff.
If problem persists, possible
hardware failure. Contact MRC
Technical Support.
E26D RS232 LOS Loss of Signal - The given
interface doesn’t recognize or
can’t lock to the given input signal. • Verify a valid signal is
connected.
• Contact technical staff.
If problem persists, possible
hardware failure. Contact MRC
Technical Support.
E26E RS485 LOS
Table 4-3: SCM4000 Demodulator Primary Error Codes
Error
Code
Error Message Meaning Suggested Operator Action
Suggested Technical Staff
Action
Status Errors
(Some part of System is reporting an abnormal condition.)
E240 Dem Ch1 OF Channel 1 FIFO Overflow Fault • Verify the Demodulator has the
correct data rate for the given
channel.
• Contact technical staff.
If problem persists, possible
hardware failure. Contact MRC
Technical Support.
E241 Dem Ch2 OF Channel 2 FIFO Overflow Fault
E242 Dem Ch3 OF Channel 3 FIFO Overflow Fault
E243 Dem Ch4 OF Channel 4 FIFO Overflow Fault
E244 Dem Ch1 UF Channel 1 FIFO Underflow Fault
E245 Dem Ch2 UF Channel 2 FIFO Underflow Fault
E246 Dem Ch3 UF Channel 3 FIFO Underflow Fault
E247 Dem Ch4 UF Channel 4 FIFO Underflow Fault
Table 4-2: SCM4000 Modulator Primary Error Codes (Continued)
Error
Code
Error Message Meaning Suggested Operator Action
Suggested Technical Staff
Action