LG MICRO Hi-Fi SYSTEM Service Manual page 31

2. OPEN/CLOSE WAVEFORM AT POWER ON
7
8
9
10
3. STARTING ACTION WAVEFORM IN MD DEVICE
11
12
4. FOCUS WAVEFORM (AT CD)
13
14
Open
Open_sw
Close_sw
Close
Driver STBY
SLEGN
SL+
SL-
F+
F-
3-18
IC401 pin 11
IC501 pin 60
IC501 pin 63
IC401 pin 10
IC401 pin 18
IC401 pin 17
IC401 pin 3
IC401 pin 4