K-Video Circuit Diagram - NAD M55 Service Manual

13.K-VIDEO CIRCUIT DIAGRAM

3.3VD DVCCV AVCCV
L550 22UH L551 22UH
B618 B619
10u/6.3V 10u/6.3V
22x4
RP546
YUV0 1 8
YUV0
YUV1 2 7
YUV1
YUV2 3 6
YUV2
YUV3 4 5
YUV3
YUV4 1 8
YUV4
YUV5 2 7
YUV5
YUV6 3 6
YUV6
YUV7 4 5
YUV7
RP547 22x4
DVCCVDVCCV
DVCCV
R665 R666
NC NC
B504
0.1U
R667 R668
4K7 4K7
+12V -12V VCC
JP503
6
5
4
R626
3
2 0R
1
TO PSU
PIN6*2mm
1.2 V Micropower,
D502
1
V+
3
NC
2
V-
AD1580
package:SOT23
+3.3VV
R712 R711 R687
4K7 4K7 3040R
+2.5VD
PPCLK
R670 0R
PCLK
PCLK
R686 22R
R693 22R/NA
DEL R691
-12V +12V
C614
C613 C629 C631
0.1U
0.1U 47u/25V 47u/25V
R701 0R R713 0R
GNDD GNDV GNDD GNDV
SD-B
SD-G
SD-R
AVCCV
C607
0.1U
1 36
V0 VAA
2 35 RP548 22x4
V1 GNDA
3 34 1 RST-S2300 8
V2 RESET RST-S2300
4 33 2 7 SCL
V3 SCL SCL
5 U536 32 3 6 SDA
V4 SDA SDA
6 CS4955 31 4 5 27M_IN
V5 TTXRQ 27M_IN
7 30
V6 TTXDAT
8 29
V7 CLK1N
9 28
FIELD/CB WR
10 27
HSYNC/CB RD
11 26
VSYNC PDAT0
12 25
INT PDAT1
AVCCV
+2.5VA
B506 B507
0.1U 0.1U
DVCCV
C608
0.1U
3.3VD
U522
3.3VD 1 +2.5V
G FERB
FB525
2 4
OUT O
VCC
R629
3 C626 C600
IN
100u/6.3V 0.1U
0R
AMS1117-2.5
+2.5V
FB523 FERB
FB524 FERB
HD-G
HD-B
+2.5VD +2.5VA
HD-R
R689
1K1
+3.3VV
R688 3040R
R684
4K7
C601 C602 C603
R685 0.1U 0.1U 0.1U
NA +2.5VA
C637 820PF
R692 680R
C633 3.9nF
100R
R525 RST-S2300
PPCLK
R698 10K
49 32 RP542 22Rx4
DEL R694
S_VSYNC CLKIN_A
50 31 8 1 C9
S_HSYNC RTC_SCR_TR
51 30 7 2 C8
S0 C9
52 29 6 3 C7
S1 C8
53 28 5 4 C6
S2 C7
54 27
S3 C6
55 26 5 4 C5
S4 C5
56 U527 25 6 3 PBLANK
Vdd P_BLANK
57 ADV7300A 24 7 2 PVSYN
DGND P_VSYNC
(ADV7310A)
58 23 8 1 PHSYN
S5 P_HSYNC
59 22
S6 SCLK
60 21
RP543 22Rx4
S7 SDA
61 20
S8 ALSB
62 19 R696 100R SCL
S9 I2C
63 18
CLKN_B C4
64 17 R697 100R SDA
GND_IO C3
R699
+3.3VV
+2.5VD +3.3VV
4K7
RP539 RP540 3.3VD
22Rx4 22Rx4
RP538 RP541
22Rx4 22Rx4
C610
0.1U
C644
470uF/10V
+3.3VV
C643 C611
0.1U
0.01U
3-46
C667 56PF
S-C
S-Y
L522 5.6UH
R621
C661 C561 R614
300R
56PF 100PF 300R
C666 56PF package:SO8
L521 5.6UH
C660 C560 R613
R620
300R 56PF 100PF 300R
C668 56PF
L523 5.6UH
R615
R622
C662 C562
300R
300R
56PF 100PF
+2.5VD +5V_VID
SD-B
C641 C642 C609 R781
R623
0.01U 0.1U NC
0.01U
150R
B521
NC
SD-G
+3.3VV SD-G
R624
150R
C625 C599
100u/6.3V
0.1U
SD-B
SD-R SD-R
JP506
R774 0R/NC
1
R619
+2.5VA
2
150R
R775 0R/NC
CON2
For Debug ADA4411-3 Filter
+2.5VD
0R
R776
P/I SELECT
R777 0R
HD-G HD-G
HD-B
R653
300R
HD-R
HD-B
R655
300R R785
L=SD H=HD
L=CH_B H=CH_A
P/I SELECT
R784
HD-R
HD-R
SD-R
RST-S2300
R656 HD-G
300R
SD-G
HD-B
C9
SD-B
C8
C7
C6
C5
PBLANK OPTION:
PVSYN
This circuit is for instead ADA4411-3
PHSYN
SCL
SDA
-5V_VID
-12V
3
OUT
R715
4 2
I IN
180R
+12V
C612
1 C628
0.1U
ADJ
100u/6.3V
R714
510R
U528
AMS337-ADJ
XM1
B643
0.1UF
XM2
B642
0.1UF
R662 R664
560R
560R
C648
470uF/10V
1 C-SVIDEO
R675 75R
C598
C654 0.1U
0.1U
-5V_VID
U516
-5V_VID
AD8092
+5V_VID
C597
+5V_VID 0.1U
C649
R661 R663 470uF/10V
1 Y-SVIDEO
560R 560R 75R
C655 0.1U C606
0.1U
-5V_VID
+5V_VID
-5V_VID
C604
0.1U
C650 470uF/10V
R673
1 CVBS
75R
U517
AD8091 C656 0.1U
COMPONENT OUTPUT IS NOT
+5V_VID
R671 R672 APPEAR OR BAD
560R 560R
+5V_VID +5V_VID F_SEL_A F_SEL_BY/C Cutoff P b/B Cutoff Pr/R Cutoff
0 0 36MHz
0 1 36MHz
R773 R779 1 0 18MHz
4K7 NC 1 1 9MHz
+5V_VID
C651
PIN23: H=X2 GAIN
470uF/10V
U543
1 24 1
LEVEL1 LEVEL2
R778 B520
2 23 NC NC
DISABLE G-SEL
3 22
Y1/G1 Vcc
C657
4 21 330pF
G/Y_OUT
GND Y/G_OUT
C652
5 20
Pb1/B1 Vee 470uF/10V
6 19 B/Cb_OUT 1
GND Pb/B_OUT
7 18
Pr1/R1 Vee
C658 330pF
8 17 R/Cr_OUT
F_SEL_A Pr/R_OUT
9 16 C653
F_SEL_B Vcc
470uF/10V
R783
10 15 P/I SELECT 1
Y2/G2 MUX P/I SELECT
33R
L=CH2 H=CH1
11 14
DGND Pr2/R2 R783 R784 changed from 0R to 33R
L=HD H=SD C659 330pF
12 13
Pb2/B2 DGND
ADA4411-3
+5V_VID
B509
0.1U
U542
33R
+5V_VID +5V_VID
1 14
INmux Fsel
33R
2 13 C619 C620
Rina Vss
0.1U 0.01U
3 12 R/Cr_OUT
Rinb Rout
4 11 G/Y_OUT
Gina Gout
5 10 B/Cb_OUT
Ginb Bout
3.3VB 3.3VB
6 9
Bina Vcco +5V_VID
7 8 R772 NC
Binb Vcca
B511 B510
0.01U 0.1U
FMS6418A
FB529 60R@100M
3.3VB 3.3VD
VCC
TRIG_O/F
U529 TRIG_O/F
1 +5V_VID
G
R707
4k7
2 4
OUT O
3 +12V_O/F
IN +12V_O/F
C630 C615
100u/6.3V 0.1U
AMS1117-5.0
R708
Q524
10K
8050
+5V_VID D+5V
FB526 FERB/NC
VCC
FB527 FERB
3-47
P502A
S+RCA
FB528 FERB
Q601
BAV99
C618
20PF
+5V_VID
-5V_VID
S-VIDEO OUTPUT
R674 FB521 FERB
Q602
C616
BAV99
20PF
+5V_VID
-5V_VID P502B
S+RCA
FB522 FERB
C617
Q603
20PF
BAV99
+5V_VID
-5V_VID
COMPOSITE OUTPUT
36MHz 36MHz
18MHz 18MHz
18MHz 18MHz
9MHz 9MHz
R678 75R
B/Cb Cb-RCA PB
Q604
BAV99
+5V_VID
-5V_VID
R677 75R
G/Y Y-RCA Y 3 5
4
Q605 1
BAV99
+5V_VID P508
MC4
-5V_VID
R676 75R
R/Cr Cr-RCA PR COMPONENT OUTPUT
Q606
BAV99
+5V_VID
-5V_VID
JP502
CVBS 16
16
GNDV 15
15
G/Y 14
14
B/Cb 13
13
R/Cr 12
12
GNDV 11
11
RGB_N 10
10
RGB_AV/TV 9
9
RGB_S 8
8
D+5V 7
7
GND 6
6
MUTE 5
5
LCH 4
4
GNDA 3
3
RCH 2
2
+12VA 1
1
CON16
TO SCART BOARD
SW503
R702 4k7
3
OFF
3
2 2
1
1 ON
SPDT M7
J501A
R706 4k7
R716
+12 TRIG IN
100R