Cd Section - Sony CFD-S01 Service Manual

CFD-S01

CD SECTION

CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC701 pin ts and pin 4 (or
TP (RF) and TP (VREF)).
2. Insert the disc (PATD-012 (Tr 15)). (Part No. : 4-225-203-01)
3. Press the N X (CD) button.
4. Confirm that the oscilloscope waveform is as shown in the figure
below. (eye pattern)
A good eye pattern means that the diamond shape (
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
16
) in the
RF level :
1.7 ± 0.2 Vp-p
Test Point:
– MAIN BOARD (Conductor Side) –
JW192
C707
JW193
R700
JW195
C709 C708
C705
R712
R714
C711
R726
R717
R722
C716
R727
C717
TP701
JC703
R740
JW197
C720
R757
JC702 JW198
R758
C759
D703
JW200
C748
TP (VREF)
C704 FB701
C761
RF
C757
C755
C735
C779 C758
R775
R776
C764
R766
C754
C751
C769
C765
C753
C763
C749
R773
R774
C744
C745
FB703
C747
X701
R762
R739
C726
FB702
C773
C727
R763
R743
JW196
R748
E C B
Q703
R755
R759
FFC
C728
JW199
JW201
TP (RF)