SONY CFDV34L
Manual de Servicio

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Good Example
VOLT/DIV : 100mV TIME/DIV : 1ms 100mV 0V

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Incorrect Examples (Fundamental wave appears)
VOLT/DIV : 1V TIME/DIV : 2ms 0V

low tracking gain

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Incorrent Examples (DC level changes more than on adjusted waveform)
VOLT/DIV : 100mV TIME/DIV : 2ms

VOLT/DIV : 1V TIME/DIV : 2ms 0V

200mV
high tracking gain (high fundamental wave than for low gain)

0V
low focus gain

[MAIN BOARD]
VOLT/DIV : 100mV TIME/DIV : 2ms
TP(FE)

75mV 0V
TP(VC)

high focus gain
TP(TE)

5. 6. 7.

Connect an oscilloscope between TP (TE) and TP (VC). Insert disc (YEDS-18) and press the CD ^ button. Check that the waveform is as shown in the figure below. (tracking waveform)
VOLT/DIV : 1V TIME/DIV : 2ms

TP(RF)

Osilloscope (DC range)

0V
TP(FE) TP(TE) TP(VC)
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