M8SL2-00-002-812 Troubleshooting F5.1
© Copyright Tait Electronics Limited August 2004. All rights reserved.
5 Troubleshooting
The following is a list of possible power supply fault symptoms and possible causes.
Symptoms Possible Causes and their Solutions
1. No output voltage Mains supply not present
or too low
Check and rectify mains
supply
Equipment has over-
heated and thermal cut-
out has operated
See Symptom 3 below
Defective switching cir-
cuitry
Replace module and
return faulty module for
servicing
2. Output voltage below
specification
Mains supply is to low Check and correct mains
supply problem
Current overload protec-
tion is active
Check for possible causes,
e.g. short-circuits
Defective switching cir-
cuitry
Replace module or return
faulty module for servic-
ing
3. Power Supply over-
heats
Mains supply is to low Check and correct mains
supply problem
Equipment cooling is inef-
ficient due to incorrect
installation of the
T800-23-0011
Refer to Section 3.3 for
installation guidelines
The T800-23-0011 internal
fan has failed
Replace module or return
faulty module for servic-
ing