Sony CFD-21 - Page 14

5.
Connect
the’
oscilloscope
between
IC701
pins
@)
and
@.
6.
Adjust
RV703
so
that
the
waveform
is
as
shown
in
the
figure
below.
(tracking
gain
adjustment)
Adjustment Location:CD MAIN board (See page 15)
e Correct Example
VOLT/DIV: 1 V
TIME/DIV: 2 mS
i—— OV
@ Incorrect Examples (fundamental wave appears)
low tracking gain
VOLT/DIV: 1 V
TIME/DIV: 2 mS
—oOoV
high tracking gain
(higher fundamental wave than for low gain)
VOLT/DIV: 1 V
TIME/DIV: 2 mS