Sony CFD-V77S - Page 16

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• Good Example
• Incorrent Examples (DC level changes more than on adjusted
waveform)
5. Connect an oscilloscope between TP (TE) and TP (VC).
6. Insert disc (YEDS-18) and press the CD ^ button.
7. Check that the waveform is as shown in the figure below.
(tracking waveform)
low focus gain
high focus gain
low tracking gain
high tracking gain
(high fundamental wave than for low gain)
[MAIN BOARD] (Conductor side)
• Incorrect Examples (Fundamental wave appears)
100mV
0V
VOLT/DIV : 100m
V
TIME/DIV : 1ms
VOLT/DIV : 100m
V
TIME/DIV : 2ms
200mV
0V
VOLT/DIV : 100m
V
TIME/DIV : 2ms
75mV
0V
VOLT/DIV : 0.2
V
TIME/DIV : 2ms
0V
VOLT/DIV : 0.2
V
TIME/DIV : 2ms
0V
VOLT/DIV : 0.2
V
TIME/DIV : 2ms
0V
TP(RF)
TP(VC)
TP(FE)
TP(TE)
+
–
Oscilloscope
(DC range)
TP (VC)
TP (TE)
TP (FE)