2-6
T6600C, T6600C/CD, T6600C/CDV
Procedure 3
Output Voltage Checklist
The power supply supplies five voltages to the system board. Check the output voltage of the
power supply unit.
Check 1
Remove the keyboard cable cover, connect the power supply cables to the system
board, then connect the AC cord and turn on the power.
Use a multimeter to check the following voltages:
Table 2-1 Output Voltages
Connector
Pin No.
Voltage (V)
PJ440
1
GND
2
-5
(±10%)
3
GND
4
GND
5
GND
6
GND
7
GND
8
GND
9
GND
10
GND
11
-12
(±10%)
PJ441
1
+5
(±5%)
2
+5
(±5%)
3
+5
(±5%)
4
+5
(±5%)
5
+5
(±5%)
6
+5
(±5%)
7
+24
(+8V/-4V)
8
+12
(±5%)
9
+12
(±5%)
10
+12
(±5%)
If the output voltages are not correct, replace the power supply unit.
If the output voltages are correct, the system board may be damaged. Go to
Section 2.4, System Board Troubleshooting.
