Read Sony CFD-S05 (serv.man2) Service Manual online
CFD-S05
13
CD section adjustments are done automatically in this set.
In case of operation check, confi rm that focus bias.
In case of operation check, confi rm that focus bias.
FOCUS BIAS CHECK
1. Connect the oscilloscope between IC801 pin ul and pin ik (or
1. Connect the oscilloscope between IC801 pin ul and pin ik (or
TP804 (RF) and TP711 (VREF)).
2. Insert the disc (PATD-012 (Tr 15)). (Part No. : 4-225-203-01)
3. Press
3. Press
the
N
X
(CD) button.
4. Confi rm that the oscilloscope waveform is as shown in the fi g-
ure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.
center of the waveform can be clearly distinguished.
• RF signal reference waveform (eye pattern)
RF level :
1.5 ± 0.2 Vp-p
1.5 ± 0.2 Vp-p
VOLT/DIV : 50 mV (10 : 1 probe in use)
TIME/DIV : 500 nS
TIME/DIV : 500 nS
When observing the eye pattern, set the oscilloscope for AC range
and raise vertical sensitivity.
and raise vertical sensitivity.
Test Point:
– MAIN BOARD (Conductor Side) –
– MAIN BOARD (Conductor Side) –
IC801
3
IC701
C120
C703
C128
C228
C227
877
C880
CN810
TP711 (VREF)
L806
4
JW156
JW141
JW142
JW187
C803
C834
L805
C863
JW185
JW186
JW188
JW189
JW189
CN310
JW168
JW126
JW127
JW128
JW129
JW130
JW131
JW133
JW181
1
3
JW140
JW184
L807
JW143
TP805 (TE)
TP895 (FE)
TP804 (RF)
JW139
C230
R232
C702
R125
R124
R225
R128
R123
R719
R707
R713
R715
R708
R714
C882
C881
R864
R865
R865
R862
R861
R860
R859
R858
C866
C867
C865
C864
C864
C861
C859
C858
R851 R852
R850
R853
C851
C835
C862
C854
FB802
C856
C855
R856
R855
C852
C853
R863
R720
C704
C883
C878
C879
R867
R868
03
R826
827
92
R808
1
25
26
50
51
75
76
100
C829
831
830
829
C81
1
C806
C884
1
15
2
16
1
7
8
14
28
22
21
15
JACK
BOARD
CN311
C
TP804 (RF)
TP711 (VREF)
CD SECTION
Click on the first or last page to see other CFD-S05 (serv.man2) service manuals if exist.