ERICSON EDACS LBI-39153, Maintenance Manual

Page: 37 / 86

TROUBLESHOOTING LBI-39153
37
SELECTOR TROUBLESHOOTING (Refer to LBI-39151 for detailed troubleshooting on Selector.)
SYMPTOM POSSIBLE CAUSE
b. Check RMIC (if present) or RS-232 Interface card (if
present).
c. In Simulcast systems, check the data path from the Control
Point to the Selector.
DIGITAL RECEIVER TROUBLESHOOTING (Refer to LBI-39151 for detailed troubleshooting on DR.)
SYMPTOM POSSIBLE CAUSE
1.
RDY
LED not ON. a. No power to CV
2
shelf. Check power cables and 5 volt
power supply.
b Check Flash programming.
2.
DR/F
LED flashing erratically or at a 2 Hz rate. Backup Serial Link (BSL) failure. Check operation of
Selector.
3. DR/F LED flashing erratically or at a 1 Hz rate. Phone line failure.
a. Check phone lines and RMIC modem line level settings.
b. Check RMIC (if present) or RS-232 Interface card if
RMIC
c. Ensure cards are installed in the correct slots.