LG HT356SD Service Manual page 27

7. DISC TYPE JUDGEMENT WAVEFORMS
FIG 7-1 (DVD)
FIG 7-2 (DVD)
F+
22
PU_DET
23
24
RF
F+
22
PU_DET
23
RF
24
2-18
24
16 26
10
11
18 28
17 22 27
8
9
14
15
23 : This signal can see using special debug program
23 25 32
24
16 26
10
11
33
30
34
35
39
37
36
3
33
30