Sony DVP-NS705V Service Manual page 22

MB-105 (VIDEO ENCODER, AUDIO D/A CONVERTER) SCHEMATIC DIAGRAM • See page 4-7 for printed wiring board.
– Ref. No.: MB-105 board; 2,000 series –
1 2 3
MB-105 BOARD (8/11)
A
NO MARK:PB MODE
B
B+
EXCEPT NS705V
C
C626
NS905V 47u
4V
R001
C624 3.4
0
0.01u
0
Y0
R002
Y1 0.3
0
R003
Y2 1.3
0
R004
Y3 1.3
0
D
R005
0.1
Y4
0
R006
Y5 1.3
0
R007
Y6 2.0
0
Y7 1.3
R008
2.5
0
C625
0.22u
R009
0
Y8 1.3
R010
Y9 1.3
0
E R011
0
CBCR0
0
R012
CBCR1 0.2
0
CBCR2 0.5
R013
0
F
B+
B+
C627
EXCEPT NS705V
0.22u
G
EXCEPT NS705V
1
2
3
4
B+
MB-105 BOARD
(7/11)
H
5
SCL
I
SCL
MB-105 BOARD
SDA
(5/11)
SDA
05
• Waveforms
1 IC604 es
3.9 Vp-p (27 MHz)
4 5 6 7
SIGNAL PATH
VIDEO SIGNAL
AUDIO
SIGNAL
CHROMA Y Y/CHROMA
PB
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
R021
10k
3.3
JL608
VDD_IO S_BLANK
1.3
P_Y[0] RSET1
JL609
P_Y[1] VREF
1.5
4
P_Y[2]/SCANEN COMP1
0.5
P_Y[3]/TESTMODE DAC A
EXCEPT NS705V
3 0.5
P_Y[4] DAC B
0.6
IC604
P_Y[5] DAC C
2
2.5
P_Y[6] VAA
VIDEO ENCODER 7
IC604
P_Y[7] GND
ADV7300AKST 0.5
VDD DAC D
6 0.6
GND DAC E
0.6
P_Y[8] DAC F
5
1.5
P_Y[9] COMP2
1.2
P_C[0] RSET2
1.3
P_C[1] EXT_LF
3.1
P_C[2] RESETB
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
1.0 0 0 0
1
C628
470p
R674
R659 C633
680
NS905V R661
820p
100
100
C630
3900p
R015 R016 R020
R014
0 0 0
0
2 IC604 rs
3 IC604 rd
850 mVp-p (H) 950 mVp-p (H)
4-25
8 9 10 11
C634
0.22u
IP_SW
RGBSEL
MB-105 BOARD
(5/11) EUROVY
EXT/DSEL
WIDE
EXCEPT NS705V
R675
1k
RV601
C631
1k
0.1u
VIDEO
LEVEL ADJ
C636
0.22u
R676
1k
RV602
1k
COMP-Y
MB-105 BOARD
XRST
(5/11)
R677
100
R678 R683
C637 300 300
0.001u 0.5%
0.5%
R679 R681
300
300
0.5%
0.5%
R682
R680
300 300
0.5% 0.5%
EXCEPT NS705V
R026
1k
B+
Q601
2SA1162-YG-TE85L
NS905V
EXCEPT NS705V
IC605
+2.5V REG
IC605
TK11125CSCL-G
B+ B+
3.4 3.4
VIN CONT
+3.3V
C635
GND
100u
4V 2.5 1.3 MB-105 BOARD
VOUT NOISE (6/11)
GND
C638 C639
0.22u 0.01u
4 IC604 rf
1.1 Vp-p (H)
DVP-NS705V/NS755V/NS905V/NS915V
12 13 14
NS705V
R694
0
EXCEPT NS705V
R693
R692
0
0
R696
0
R697 0 EXCEPT NS705V R695
0
R687 0
R686 0uH
NS705V
NS905V
R028 0
NS705V R029 0
EXCEPT NS705V
R689 0
NS705V
R688 0uH
R691
R602 0
0
EXCEPT NS705V R690
0
NS705V
L_MUTE
R_MUTE
ALT-
ALT+
MB-105 BOARD
P_GND
(10/11)
B+
AUDIO+5V
ART+
ART-
5 IC604 ej
6 IC604 ek
650 mVp-p (H) 650 mVp-p (H)
4-26
VIDEO ENCODER, AUDIO D/A CONVERTER
MB-105 (8/11)
15 16 17
COMPOUT
COUT
Y_BUFF_CXD
MB-105 BOARD
YOUT
(3/11)
Y/G
CR/B
CB/R
NS705V/NS905V:AEP.UK,RUS
CN601 21P
JL610
1 RGBSEL
JL611
2 ERAUDIOL
JL612
3 EUROVY
JL613
4 P_GND_AUDIO
JL614
5 ERAUDIOR
B+ JL616 JL615
6 +11V
JL617
7 DISCEXT
B+ JL619
JL618
8 +5V
JL620
9 WIDE
JL621
10 VMUTE ER-19 BOARD
JL622
CN901
11 B
JL623 (SEE PAGE 4-53)
12 D_GND_VIDEO
JL624
13 R
14 D_GND_VIDEO
JL625
15 G
16 D_GND_VIDEO
JL626
17 Y
18 D_GND_VIDEO
JL627
19 C
B- JL629
JL628
20 -5V
JL630
21 V
R700
0
CN602 29P
JL631
1 Cr/B
2 WIDE
JL632
3 Cb/R
4 D_GND_VIDEO
5 Y/G
6 D_GND_VIDEO
7 Y
8 D_GND_VIDEO
9 C
10 D_GND_VIDEO
11 V
12 RGBSEL
13 DSEL
JL633
14 IP_SW
B+
AV-64 BOARD (2/3)
15 VIDEO+5V
B+
CN301
16 VIDEO+11V
(SEE PAGE 4-41)
B-
17 VIDEO-5V
18 EURO_R
19 VMUTE
20 EURO_L
JL634
21 LMUTE
JL635
22 RMUTE
JL636
23 ALT-
JL637
24 ALT+
JL638
25 P_GND
JL640 JL639
26 AUDIO+5V
27 P_GND
JL641
28 ART+
JL642
29 ART-
7 IC604 el
950 mVp-p (H)