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2.3
Power Supply Troubleshooting
The power supply controls many functions and components in the 610CT. To determine if
the power supply is functioning properly, start with Procedure 1 and continue with the other
Procedures as instructed. The procedures described in this section are:
Procedure 1:
Procedure 2:
Procedure 3:
Procedure 1
DC IN Icon Indicator Check
The 610CT AC adapter converts AC power to DC power and contains a charging circuit
which charges the batteries. The adapter connects to the DC IN socket connector on the back
side of the computer. When the AC adapter is connected to the computer and the power is
turned off, the AC adapter charges the batteries.
The DC IN icon displays whether or not the AC adapter is connected and supplying power.
When the DC IN icon is green, the AC adapter is connected and supplying power to the
610CT.
If the DC IN icon does not light, the AC adapter is not supplying power or the AC adapter is
not attached to the 610CT, go to Check 1.
If the DC IN icon is flashing orange, the AC adapter's voltage supply is abnormal or the
power supply is not functioning properly, go to Check 1.
If any of the above indicator conditions are abnormal, make sure the DC IN icon's LED
indicator lights are not burned out before performing the following checks:
Check 1
Make sure the correct AC adapter cable is firmly plugged into the DC IN socket
on the back of the computer.
Check 2
If the DC IN icon flashes orange when the AC adapter is connected, its voltage
output is abnormal. Connect a new AC adapter and turn the 610CT on again to
verify the indicator condition.
Check 3
The battery pack may be malfunctioning. Replace the battery pack with a new one
and turn the computer on again. If the problem still exists, perform Check 4.
Check 4
Place the 610CT in an environment between –20°C and 70°C until it is at the
ambient temperature. Repeat the steps which caused the computer to operate
abnormally. If the same problem still occurs, perform Procedure 3.
610CT
DC IN Icon Indicator Check
Battery LED Indicator Check
Connection and Replacement Check
2-5
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