Ericsson SVP 2000, Reference Manual, Page: 151 / 196

Fault-Finding and Troubleshooting
7.5.3 Power Supply Problems/Unit Not Working
If the unit Power Indicator is unlit, fault-find the problem as detailed in Table 7.1 .
Table 7.1 Power Indicator Unlit Fault-finding
Step Action If Result of Action is Yes… If Result of Action is
No…
1 Is the Power indicator is
inactive but the unit still
working? If the unit is clearly working normally
then the Power indicator itself is
probably at fault. Call a Service
Engineer. Proceed to next step.
2 Check Power Source .
Connect a known-working
piece of equipment to the
power source outlet. Does it
work?
The problem lies within the unit or
power cable. Proceed to next step. The problem lies with the
power source. Check
building circuit breakers, fuse
boxes, etc. If problem
persists, contact the
electricity supplier
3 Check Power Cable
Unplug the power connector
from the unit and try it in
another piece of equipment.
Does it work?
The problem lies within the unit.
Possible problem with the PSU
module. Call a Service Engineer. The problem lies with the
cable itself.
Substitute another cable.
7.5.4 Lithium Battery
The lithium battery fitted within this product is not user replaceable and as such
should only be replaced by qualified service personnel.
7.5.5 Fan(s) Not Working/Overheating
In the event of overheating problems, refer to Table 7.2 .
Table 7.2 Fans Not Working/Overheating
Step Action If Result of Action is Yes… If Result of Action is
No…
1 Check Fan Rotation.
Inspect the fans located at
the sides of the enclosure.
Are the fans rotating?
Check that the unit has been installed with
sufficient space allowed for air-flow (see
Chapter 2, Installing the Equipment ). If the
ambient air is too hot, additional cooling may
be required.
Possible break in the DC
supply from the PSU
module to the suspect
fan(s). Call a Service
Engineer.
EN/LZT 790 0046/1 R1A 7-7