Sony DVP-NS300 Service Manual page 56

Q Q
3 7 6 3 1 5 1 5 0
AV-56 (AUDIO AMP) SCHEMATIC DIAGRAM • See page 4-29 for printed wiring board.
– Ref. No.: AV-56 board; 1,000 series –
1 2 3
AV-56 BOARD (2/2)
A
NO MARK:DVD/CD PLAY
D:DVD PLAY
C:CD PLAY
B
RGBSEL
EUROVY
C
V
DISCEXT
C
AV-56 BOARD (1/2)
Y
Y/G
CB/R
WIDE
CR/B
D
D_GND
AV-56 BOARD (2/2)
CN203 25P
JL206
Cr/B 29
JL230
WIDE 28
JL231
Cb/R 27
JL232
GND 26
JL233
E
Y/G 25
GND 24
JL234
T E Y 23
L 1 3 9 4 2 2 9 6 5 1 3
GND 22
JL235
C 21
JL236
DISC/EXT 20
JL237
V 19
MB-98 BOARD (8/8) JL238
EUROVY 18
CN801
F
(SEE PAGE 4-26) GND 17
JL239
RGBSEL 16
JL205
ALT- 15
JL216
SPDIF 14
JL207
ALT+ 13
JL214
P_GND_SPDIF 12
JL209
P_GND_2CH 11
JL208
RMUTE 10
JL211
G
ART+ 9
JL210
LMUTE 8
JL213
ART- 7
JL215
MAMUTE 6
JL212
AU+5V 5
B+
5
H
Q211
2SC2712-YG-TE85L
BUFFER
R251
R249
220 68
IC204
OPTICAL DIGITAL
J201 OUTPUT
JL201
COAXIAL
I
DIGITAL
OUT
0 JL202
D IN
5 JL203
OPTICAL VCC
JL204
GND
C227
47u
IC204
J 16V
GP1FA550TZ
EXCEPT AEP,UK,RUS
05
w w w
.
4 5 6 7
IC203
B+
+5V REG
R253
1k IC203
NJM78L05UA-TE1
2.5
R256
C229
1k
47u
1.8
16V
R254
1k
1 2 3
5 10.9
C228
47u
B+
16V
ET201
R252
10k
C222 C223
0.01u
C226 0.01u
220p
B+
x a o
y
i
4-33
http://www.xiaoyu163.com
8
8 9 10
R201 R210
4700 2200 C207
0.01u
C210
R212
C201 47u
5600
560p 16V
R202
R205
4700 R208
5600
2200
C203
0
180p
1.4 10.9
5 6 7 8
IC201
AUDIO AMP
4 3 2 1
-8.6 0
B-
C204 C211
180p 47u
C205
16V
180p
R206 R207
R203 5600 2200
4700 C208
0.01u
R209 R211
C202
R204 2200 5600
560p
4700
10.2
C209
1u
R224
50V
R222
10k
Q Q
D6.2/C0
3 7 6 3
D202
DAP202K-T-146
D6.2/
D0.6/ C0
C3.1
R213
Q202
4700
UN2213-TX
D201
DAN202K-T-146
D203
DAP202K-T-146
R214
4700
B+
B+
B+
C224 C231
47u 220u
16V 16V
u 1 6 3
.
http://www.xiaoyu163.com
2 4
9 9 8
11 12 13 14
R226
470
R229
47k
B-
Q207
2SD1938(F)- R238 R239
T(TX).SO 100k 100k
R237
0 MUTE
4700
AEP,UK,
RUS
R235
D0.8/
4700
C-8.6
EXCEPT
EXCEPT AEP,UK,RUS
AEP,UK,
RUS
R234
D0.8/
4700
0
C-8.6
Q208
2SD1938(F)-
T(TX).SO
MUTE
R227
470
R230
C215
47k
220p
C216
220p
Q205
2SB709A-QRS-TX
D10.2/C-8.6
AEP,UK,
RUS
10k
D9.5/C10.2
R228
Q202,204,205
10k
MUTE DRIVE
D0/C10.2
1 5 Q204 1 5 0 8 9 2 4
DTC124TKA-T146
R225
47k
AEP,UK,RUS
Q210
D10.2/
2SB709A-QRS-TX
10.2 C-8.6
C212
1u
R232
50V
10k
D9.5/C10.2
B+
R236
R231
10k
10k
D0/C10.2
D0.6/
D6.2/C0
C3.1
Q209
DTC124TKA-T146
R233
47k
Q201
2SB710-RTX
Q206 Q206,209,210
B+ SWITCH
UN2213-TX MUTE DRIVE
11
B+
10.9
R217
10k
10.2
R216
5600
-9.2
R218
Q203
100k
2SC2712-
YG-TE85L
-8.7
-9.3
B-
D205
Q216
1SS355TE-17
2SB709A-QRS-TX
Q203,216
B- SWITCH
SIGNAL PATH
VIDEO SIGNAL
AUDIO
SIGNAL
CHROMA Y Y/CHROMA
PB
m
c o
4-34
DVP-NS300
2
9 9
15 16 17
R240
470
1L
R241
470
2L
R242
470
1R
R243
470
2R
AV-56 BOARD (1/2)
ERAUDIOR
ERAUDIOL
9 8 B- 2 9 9
SW-11V
VMUTE
AI+5V
AU+11V
P_GND
B+
R279
0
B+
CN202 7P
JL221
7 AU+11V
JL222
6 AI+5V
JL223
5 EVER+3.3V IF-80 BOARD
JL224
CN404
4 GND
B-
JL225 (SEE PAGE 4-38)
3 SW-11V
JL226
2 A_MUTE
JL228
1 VMUTE
B+
D_GND AV-56 BOARD (1/2,2/2)
C242
330u
6.3V
R219
220k
-10.5
-9.3
-10
R220
470
R221
10k
C244
47u
16V
AUDIO AMP
AV-56 (2/2)