Daewoo TVZ 1321 Service Manual page 90

3) Que
Ch1 : SW PULSE
Ch2 : pin 15
Ch3 : pin 11
* Logic OR function
CH3 = CH1 CH2
4) Que
Ch1 : SW PULSE
Ch2 : comp SP SLP
Ch3 : C Rotary
88
* Logic AND function
CH3 = CH1 CH2