Vp-57 (Video Buffer) Schematic Diagram - Sony RMT-D139P Service Manual

Sacd/dvd player
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DVP-NS900V
VIDEO BUFFER
VP-57 (5/5)
VP-57 (VIDEO BUFFER) SCHEMATIC DIAGRAM • See page 4-59 for printed wiring board.
– Ref. No.: VP-57 board; 3,000 series –
– US, CND, MX, HK, KR –
1
2
3
4
5
VP-57 BOARD (5/5)
NO MARK:DVD/CD PLAY
A
VP-57 BOARD (1/5)
IPSW/EUROVY
C326
22u
16V
B
VP-57 BOARD (2/5)
S-Y
VMUTE
VP-57 BOARD (1/5)
C328
0.1u
S-C
VP-57 BOARD (2/5)
C327
Q311,312
22u
16V
WIDE SWITCH
C
VIDEO-OUT
4.8
Q311
UN2111-TX
4.8
R370
R372
R374
Q308
47k
47k
47k
UN2213-TX
D
0
VP-57 BOARD (1/5)
WIDE
4.8
8
Q309
UN2111-TX
4.8
0
B+
Q308,309
1
R376
WIDE SWITCH
B-
R375
10k
2
10k
E
B+
3
B-
VP-57 BOARD (4/5)
-5V
B+
+5V
GND
4
F
5
G
H
I
6
J
VP-57 BOARD (4/5)
7
K
SIGNAL PATH
VIDEO SIGNAL
CHROMA
Y
Y/CHROMA
PB
L
05
• Waveforms
1 IC306 qg
2 IC306 qd
2.2 Vp-p (H)
1.8 Vp-p (H)
4-71
6
7
8
9
B+
L306
B+
100uH
1
R384
22k
IC306
LA7104M-TLM
-0.1
4.8
Y IN
+5V
-0.2
NFB1
Y OUT
2.7
2
C349
MUTE1
GND
0.1u
-0.1
-0.2
C IN
C OUT
C350
0.1u
3
NFB2
DR CTL
-4.9
-0.2
-5V
V OUT
-0.1
2.7
V IN
MUTE2
-4.9
Q312
NFB3
-5V
UN2111-TX
B-
4.8
0
B+
IC306
R603
10k
0
C343
C348
VIDEO BUFFER
0.01u
47u
6.3V
C338
R380
R381
C337
10k
10k
0.01u
47u
6.3V
L303
100uH
L304
B-
22uH
B+
L305
22uH
C344
C339
47u
47u
R397
R610
6.3V
6.3V
10
10
0
B+
R394
R390
47k
1k
-4.8
R391
10k
Q318
2SD1938(F)-T(TX).SO
MUTE
B-
R611
10
R398
R612
10
10
0
B+
R395
1k
-4.8
R392
10k
Q319
2SD1938(F)-T(TX).SO
MUTE
B-
R399
R608
R607
R613
10
0
0
10
0
-4.8
R393
R396
1k
10k
Q320
2SD1938(F)-T(TX).SO
MUTE
3 IC306 qa
4 IC308 8
2.4 Vp-p (H)
10
11
12
13
14
R647
R657
R662
1k
1k
1k
S301
SELECTABLE
INTERLACE
PROGRESSIVE
R648
JL307
J301
0
1V
1
GND
3
1
R649
JL308
0
2V
2
JL302
J302
R650
JL303
0
JL309
1C
4
1CGND
2
R651
0
JL310
JL304
2C
8
JL305
R644
2CGND
6
R652
75
0
(3216)
R645
R653
75
0
(3216)
S1
9
2YGND
5
JL311
2Y
7
R604
10k
1YGND
1
JL312
1Y
3
S2
10
D303
D305
HZM6.8ZWA1TL
HZM6.8ZWA1TL
D304
D309
HZM6.8ZWA1TL
HZM6.8ZWA1TL
6
C360
2p
R616
2200
R625
2200
C352
0.01u
0
0
0
4.7
4
3
2
1
IC307
VIDEO AMP
5
6
7
8
0
0
0
C351
0.01u
R622
0
J303
5%
3P
R663
R617
R654
YGND
0
C357
Y
2200
0
2p
Y
5
C361
BYGND
R618
R655
2p
P
2200
B
0
B-Y
R626
RYGND
R656
2200
P
R
0
R-Y
C354
0.01u
0
0
0
4.7
4
3
2
1
IC308
VIDEO AMP
5
6
7
8
0
0
0
C353
0.01u
R629
R630
R623
0
0
2200
R619
2200
C358
4
2p
5 IC308 2
1.5 Vp-p (H)
1.5 Vp-p (H)
4-72
15
16
VIDEO OUT
2
S VIDEO
1
2
OUT
COMPONENT
VIDEO OUT
6 IC307 2
1.5 Vp-p (H)

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