4-22
TROUBLESHOOTING
“Confidential, Do Not Duplicate without written authorization from NEC.”
J9851 for Fan9
TACH1
1
f
FAN Speed indication. (Pluse)(5V)
12V
2
g
The PWM Fan Voltage input
GND
3
–
GND
PWM1
4
g
FAN Speed control Output(PWM)
TACH2
1
f
FAN Speed indication. (Pluse)(5V)
12V
2
g
The PWM Fan Voltage input
GND
3
–
GND
PWM2
4
g
FAN Speed control Output(PWM)
–
5
–
–
TACH3
1
f
FAN Speed indication. (Pluse)(5V)
12.5V
2
g
The PWM Fan Voltage input
GND
3
–
GND
PWM3
4
g
FAN Speed control Output(PWM)
–
5
–
–
–
6
–
–
TACH4
1
f
FAN Speed indication. (Pluse)(5V)
12.5V
2
g
The PWM Fan Voltage input
GND
3
–
GND
PWM4
4
g
FAN Speed control Output(PWM)
–
5
–
–
–
6
–
–
–
7
–
–
J9852 for Fan10
J9853 –
J9854 –
Summary of Contents for NP-NC900C-A
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