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Chapter 2 Installation 29
External speaker (CN3)
The CPU card has its own buzzer. You can also connect to the
external speaker on your computer chassis. Pin assignments for
CN3 are shown below:
External speaker (CN3)
Pin
Function
1
Vcc (For external speaker use)
2
Speaker- (For external speaker use)
3
Internal Buzzer *
4
Speaker- *
* default
External speaker (CN3)
Internal Buzzer
External Speaker
Reset switch (CN4)
You can connect an external switch to easily reset your computer.
This switch restarts your computer as if you had turned off the
power, then turned it back on.
1
2
3
4
1
2
3
4
Содержание SBC-770
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