Acer Aspire T180 Service Manual page 67

Connecting Components
CPU_FAN/SYS_FAN
Pin
1 GND
2 +12V
3 Sense
PWM
4
PWR_FAN
Pin
1 GND
2 +12V
3 Sense
SPK1: Internal speaker
Pin
1 VCC
2 Key
3 GND
4 Signal
Chapter 5
Signal Name
System Ground
Power +12V
Sensor
CPU FAN control
Signal Name
System Ground
Power +12V
Sensor
Signal Name
Function
Function
72