Pioneer LD-V4300D Service Manual page 79

Waveforms
• Oscilloscope range :
CH1 (X): 0 .2V/div ., DC input
CH2(Y) : 0.2V/div ., AC input
X-Y mode
110
l
v Photo 3
T
It
., _ _,_ _ _ _ _ _ _ _ + - - + - - + - - - t --<
Lissajous waveform at the inside of the TEST disc
D
Check that Y Y' .
Y'
Photo 4
-t
Lissajous waveform at the outside of the TEST disc
II
I
n --t---t--+--1---+-+--+--+----l--i
Photo 5: Waveform when insufficiently adjusted