Sony DVP-C660 Service Ma page 62

Q Q
AI-18 (AMP, LPF) SCHEMATIC DIAGRAM • See page 4-39 for printed wiring board.
3 7 6 3 1 5 1 5 0
– Ref. No.: AI-18 board; 2,000 series –
1 2 3
AI-18 BOARD (3/5)
A
NO MARK:DVD/CD PLAY
D:DVD PLAY
C:CD PLAY
SIGNAL PATH
B
AUDIO
SIGNAL
PB
C
D
E
T E
L 1 3 9 4 2 2 9 6 5 1 3
AI-18 BOARD (5/5) MEGAMUTE
F
B+
AI-18 BOARD (5/5) SW+5V
1
2
G
H
1
AI-18 BOARD (2/5)
(SEE PAGE 4-44)
C670D/C675D
3
4 C720
I
0.1u
5
6
7
8
C721
C719 C725
0.1u 1u 0.1u
50V
9
10
J
w w w
.
K
05
4 5 6
C670D/C675D
R755
R752
33k
C752
10u
50V
B+
R741 R743
10k
1500
R757
R729
C660
47k
C728 C735
8200
560p 560p
C670D/C675D
C749
C736 47u
R730 R736 C730
R753
R739 150p
8200 10k 150p 16V
470
1500
C660
B-
C732
150p
C660
C739
150p
-9.1 0 0 0
C726
4 3 2 1
220u
Q708,709
16V
MUTE
IC704
C727
Q709
1u
2SD1938(F)
50V AMP/LPF
-T(TX).SO
5 6 7 8
0 0 0 8
C660
C733
C670D/
C675D 150p
x a o B+
y
C737
C731
150p C660
150p
i
C738
R733 R737 R738 C748 R754
150p
8200 47u 470
10k 1500 C670D/C675D
R758
16V
47k
C729 C734
560p 560p
R740 R742
R734
8200 C660 1500 10k
C670D/C675D
4-45
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8
7 8 9 10
Q714
2SD1938(F)-T(TX).SO
MUTE
-9
C755 R779
R784
R760 R770
10u 33k
C764 0
33k 100k 10k
50V
R772 220u
R775
16V
33k 100
0
C762
47p
-9.1 0 0 0
C753
0.01u
4 3 2 1
IC706
HEADPHONE
AMP
5 6 7 8
0 0 0 8
R756 R786
33k 390
C765
220u R776
C759
C756 16V 100
47p
10u
R759
R783
50V
33k
R761
R766 0
100k
33k
C763 R780
R767
0.01u 33k
10k
Q715 R785
2SD1938(F)-T(TX).SO 100k
MUTE C770
4.7u
R764 0 50V
Q707
2SD1938(F)-T(TX).SO
MUTE
R765 0
Q706
2SD1938(F)-T(TX).SO
MUTE
B- B+
C754
10u
50V
Q710
2SD601A-QRS-TX
Q Q RY701
RELAY
0
3 7 6 3
DRIVE
8 7 6 5
0.8
R774
1k
R778
47k
1 2 3 4
B+
C779
1000u
R706
16V
10
C670D/C675D
3.3
D706
1SS355TE-17
Q713
UN2113-TX
C670D/C675D
FILTER CONT DRIVE
0
Q711
C760
100u 2SD1938(F)-T(TX).SO
C757
0.01u 16V FILTER CONT
3.3
0.7
R781
1k
0
C771
*
C768
0.001u
R782
100k
Q708
2SD1938(F)
R773 C670D/C675D
-T(TX).SO
100k
0 R777
100k
D0.7/C-8.9
R768
4700
C660
D0.7/
C-8.9 R769
4700
0
*C771,772
R771
3300p :C670D/C675D
4700 3900p :C660
C670D/C675D
u 1 6 3
B+
.
C769
C772
0.001u *
C758
0
0.01u
C761 C670D/C675D 0.7
100u
16V
Q712
2SD1938(F)-T(TX).SO
FILTER CONT
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2 4
9 9 8
11 12 13
CN702 3P
R792
JL721
0
1 HP_L
R793
JL722
0
2 HP_GND
R794
JL723 (SEE PAGE 4-54)
0
3 HP_R
P_GND
D705
DAN202K-T-146
B+
EVER+5V
1
3
2
B+
Q716
UN2113-TX
B+
-9 7.3
MUTE_V
R791
7.2
10k
0.1
R797
0
3.3
A_MUTE
Q718
UN2213-TX
Q716-718
MUTE DRIVE
R795
J702
470
AUDIO IN
FB705
JL724
FB706 JL725
1 5 1 5 0 8 9 2 4
L
R004 R007 C777 C778
220k 100p 100p
220k
R796
470
R005
470
R_IN
AI-18 BOARD (4/5)
L_IN
R006
470
B+
SW+3.3V
FS
B-
-8V
B+ AI-18 BOARD (4/5)
+8V
J701
R787
470 FB707 AUDIO OUT
m
FB708
R788
470
FB709
c o R789
470
FB710
R790 C773 C774 C775 C776
100p 100p 100p
470 100p
ET701
4-46
DVP-C660/C670D/C675D
2
9 9
14
HP-128 BOARD
CN501
AI-18 BOARD (2/5,5/5)
AI-18 BOARD (5/5)
AI-18 BOARD (2/5,4/5)
AI-18 BOARD (5/5)
9 8 2 9 9
R
AI-18 BOARD (2/5)
AI-18 BOARD (5/5)
R R
2 1
L L
AMP, LPF
AI-18 (3/5)