Ai-23 (Audio Amp) Schematic Diagram - Sony DVP-NS400D Service Manual

Q Q
3 7 6 3 1 5 1 5 0
AI-23 (AUDIO AMP) SCHEMATIC DIAGRAM • See page 4-29 for printed wiring board.
– Ref. No.: AI-23 board; 1,000 series –
1 2 3
AI-23 BOARD (2/4)
A
NO MARK:DVD/CD PLAY
D:DVD PLAY RGBSEL
C:CD PLAY
EUROVY
V
DISCEXT
C
AI-23 BOARD (1/4)
Y
B
Y/G
CB/R
WIDE
CR/B
AI-23 BOARD (4/4) D_GND
CN203 25P
Cr/B
C
WIDE
Cb/R
GND
Y/G
GND
GND
D
DISC/EXT
MB-98 BOARD (9/9)
CN801 EUROVY
(SEE PAGE 4-28)
GND
RGBSEL
ALT-
SPDIF
ALT+
E
P_GND_SPDIF
P_GND_2CH
RMUTE
T E
L 1 3 9 4 2 2 9 6 5 1 3
ART+
LMUTE
ART-
MAMUTE
AU+5V
F
AI-23 BOARD (4/4)
A_MUTE
B+
AI-23 BOARD (3/4) MUTE_V
G
B+
AI-23 BOARD (4/4) EVER+3.3V
AI-23 BOARD (1/4,3/4) P_GND
H
I
Q201
2SC2712-YG-TE85L
BUFFER
R215
R217
220
68
J201
JL201
COAXIAL
J
DIGITAL
OUT 1.6 JL202
D IN
5 JL203
OPTICAL
VCC
w w w
JL204
GND
C225
47u
IC203
16V
GP1FA551TZ
K
IC203
OPTICAL DIGITAL
.
OUTPUT
05
4 5 6 7
B+
JL205
25
JL206
24
JL207
23
JL208
22
JL209
21
20
JL210
Y 19
18
JL211
C 17
JL212
16
JL213
V 15
JL214
14
13
JL215
12
JL216
11
JL217
10
JL218
9
8
7
JL219
6
JL220
5
JL221
4
JL222
3
JL223
2
JL224
1
B+
B+
IC201
+5V REG
IC201
NJM78M05DL1A-TE1
5 B+ 1 2 3
10.6 5
R220
1k B+
2.5 R223
C227
1k
47u
1.8 16V
C210
C207
C204
R221 47u
0.01u
0.01u
1k 16V
C226
47u
16V
R219
10k
B+
x a o
ET201
y
C212
i
220p
4-33
http://www.xiaoyu163.com
8
8 9 10 11
R201
4700 R210
R229
2200
47k
C218
C214
C202 R213 0.01u
47u
560p 5600 R226
16V
470
R202
R205
4700 R208
5600
2200
C209
C205
180p
180p
0
1.4 10.6
5 6 7 8
Q206
2SD1938(F)-T(TX).SO
MUTE
IC202
Q207
2SD1938(F)-T(TX).SO
AUDIO AMP
MUTE
4 3 2 1
-8.6 0
C208
C206
180p
180p
R203 R206 R207
4700 5600 2200
R227
C215
47u 470
R211 C217 16V R230
C203 R209
47k
R204 560p 2200 5600 0.01u
4700
Q Q
Q205
3 7 10 6 2SB709A-QRS-TX 3
C213
1u
R224
50V
10k
D9.1/C10
R228
R222
10k
10k
D202 D0/C10
DAP202K-T-146
D5.9/C0
D0.6/ Q204
D5.9/
DTC124TKA-T146
C3.1
C0
R225
47k
R212
Q202
4700
UN2213-TX
D201
DAN202K-T-146
2
D5.9/
3
D203
1
DAP202K-T-146
D0.6/
C3.1
R218
4700
UN2213-TX
SIGNAL PATH
VIDEO SIGNAL
AUDIO
SIGNAL
CHROMA Y Y/CHROMA
PB
u 1 6 3
.
http://www.xiaoyu163.com
2 4
9 9 8
12 13 14
B+
OPAMP+11V
OPAMP-11V
B-
R238 R239
0
100k
R237 100k
4700
D0.8/
C-8.5
AEP,UK
R235
4700
D0.8/
US,CND,E
MX,AR,BR
C-8.5
R234
4700
0
US,CND,E,MX,AR,BR
R240
470
1L
R241
470
2L
R242
470
1R
R243
470
2R
C229 C228
220p 220p
AEP,UK
ERAUDIOR
D9.8/C-8.5 1 5 1 5 0 8 9 2 4
ERAUDIOL
Q202,204,205
MUTE DRIVE
AEP,UK
D9.8/
Q209
C-8.5
10 2SB709A-QRS-TX
C216
1u
R232
50V
10k
D9.1/C10
C0
R236
R231
10k
10k
D0/C10
Q208-210
D5.9/C0
MUTE DRIVE
Q208
DTC124TKA-T146
R233
47k
Q210
m
c o
4-34
DVP-NS400D
2
9 9
15
AI-23 BOARD (3/4)
AI-23 BOARD (1/4)
9 8 2 9 9
AUDIO AMP
AI-23 (2/4)