Chapter 4 Maintenance
Computer module C3PU35 User’s Manual
30
4.2
Periodic Maintenance
Check the following items periodically (once every six month is recommended). Also
check these items when the surrounding condition or environment is changed.
Item Inspection Description Action
Power supply voltage
(measure at the power supply
terminal of the module)
AC85 - 132VAC/170 - 264VAC
Check for loose power supply
terminal screws
Must be secure
Power supply
related
Check for damaged cables Must not be damaged
Check that the base unit is
securely in place
Must not be loose
Check that each module is
securely in place
Must not be loose
Installation
Check for loose connector in
front of the module and
damaged cables
Must not be loose or damaged
Measure voltage of each I/O
terminal
Must be within specification
Check the input status LED Must turn ON normally
Check the output status LED Must turn ON normally
Check that the I/O terminal is
secure
Must not be loose
Check that the terminal
screws are secure and not
touching each other
Must not be loose or touching
each other
I/O module
related
Check for damaged cables Must not be damaged
Environment Check the temperature,
humidity, vibration, and dust
Must be within installation
environment specification
C3 built-in Litium battery Should be replaced after 10 years
by C3 overhaul
Other battery
(Power Supply module)
Should be replaced after two
years
Battery related
Check that the battery
connector is connected
securely
Must be secure
Cleaning of a filter Neither garbage nor dust should
be in the air filter of the front of a
fan unit
Installation The unit and connector must not
be loose. The cables must not be
damaged.
FAN unit
Fan unit exchange time Should be replaced after 10 years
WARNING
• Do not attempt to disassemble, modify, or repair.
This can cause electrocution, fire, or injury.
Contact the Toshiba service desk for repair.
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