Samsung NP-Q1 Ultra Series, Service Manual

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4.
Troubleshooting
6) CPU Fan
control
1) Checking the work of Fan
- Without disassemble the system,you can find out normal working just checking the
FAN ON/OFF.
picture(1) Fan off picture(2) Fan on
- When you proceed the SAFC program firstly, the state is Fan off or minimal working
state.
- At "ON/OFF Control" ,press "ON" Button then Fan is ON then max working state.
- At Fan ON state, press "OFF" Button then Fan is off or minimal working state.
2) Checking the normal woking state of Fan control
No Item Mode
Voltage(V) Design guideline
SPEC : ± 10%
1
FAN Working
voltage
Off DC 0V
Low DC 2.2V
Middle1 DC 2.6V
Middle2 DC 3.0V
Middle3 DC 3.5V
High DC 3.9V
1단계
2단계
3단계
4단계
picture(3) Adjust Fan state
> The way to check the Fan working voltage
- Within Fan Connector is inserted check the B/D's Connector 1번(Red) and 2번(Black)
pin with Multi-meter.
> The standard of Fan Working voltage pass
: if Fan working voltage is within spec +/-10%, then pass
- This Document can not be used without Samsung's authorization -
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