17
ZS-S2iP
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 ( ) in the
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
Test Point:
C716
R727
C717
JC703
R740
C720
JC702
C759
C748
D703
JW200
JW201
C728
JW199
JW198
JW197
JW196
R763 R743
C773
R739
C727
C726
C738
R717
R726
C749
C707
R722
IC701
C711
C708
C705
JW195
R700
C709
R712
R714
R708
JW192
JW193
FB704
C744
C751
C755
C779
C757
C758
R768
C754
C753
C719
C718
R736
R734
R754
C725
C729
C730
R757
R758
R755
R759
R756
C731
R748
Q703
JC705
R761
R762
X701
R760
JC704
R783
R781
JW204
C772
R702
R701
JW203
C706
R721
R707
R705
R706
JW147
JW202
R703
R704
R716
R711
C700
R709
R713
C710
C777
R710
R725
R766
R772
C762
C745
C752
R770
C704
C712
C713
R728
C774
C750
1
1 52
26 27
13
14
40
39
TP (VREF)
TP (RF)
– MAIN BOARD (Conductor Side) –
RF level :
1.7
±
0.2 Vp-p
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
Summary of Contents for ZS-S2iP
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