User`s guide

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2.6.16 JP4 Buzzer/Speaker Select (Optional)
There is one jumper cap over pin1 and pin2 of JP4 for internal buzzer. If you want to use external
case-mounted speaker instead of internal buzzer, please remove jumper cap to short pin2 and pin3.
1
JP4
1 1
Buzzer
(Default)
Speaker
81
Open
A