Vertical IP8024 Installation Guide Page 133

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Symptons & Solutions 8-1
Chapter 8: Troubleshooting
MBX IP Hardware & Installation Guide
Chapter 8
Troubleshooting
Symptons & Solutions
A list of problems and solutions that your may encounter when using the MBX IP system.
PROBLEM CAUSE/SYMPTOM SOLUTION
Hardware
System power failure AC Power Fail Check the AC Power source.
Check the Inlet fuse and PSU Fuse
Check LD21,LD22 on MB/MBE -
Replace the PSU with a good one.
+5V, +30V Fail Check MPB board was installed and
verify which board has a short circuit
by extracting the boards one by one
LD4 LED OFF on the MPB Check DC Output status on MB
System does not operate Power short circuit in some board(s) Check the connection of each board
with the MPB.
Check the PSU. Check a short
circuit on the MPB or other boards.
Press the Reset button when the
DIP switch (SW1 for database
protection) is in the default position.
Bad board connection
System database not working
MPB Operation Check MPB status and SW1
position
SLT does not operate Bad DSIU/SLIB12/SLIB24/
SLIB12C/SLIB24C
Exchange the board with one in
good working condition.
Bad connection between the
DSIU/SLIB12/SLIB24/
SLIB12C/SLIB24C and SLT
Check that the board connection
between the lines of the SLT and
DKT on the MDF, and fix any
mismatching.
Release 1.7
April 2012
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