Veichi AC310 Service Manual page 51

U13 command
circuit
Resistor: R217=2K/0402，R126=4.7K/0402，triode: Q3
Pushbutton S2 Circuit:
Resistor: R235=2K/0402，R219=4.7K/0402，triode: Q4
Pushbutton S3 Circuit:
Resistor: R237=2K/0402，R236=4.7K/0402，triode: Q5
Pushbutton S4 Circuit:
Resistor: R240=2K/0402，R239=4.7K/0402，triode: Q6
Pushbutton S5 Circuit:
Resistor: R257=2K/0402，R256=4.7K/0402，triode: Q7
Pushbutton S6 Circuit:
Resistor: R259=2K/0402，R258=4.7K/0402，triode: Q8
AC310 Universal AC Drive Service Manual
50