JVC AV-20FD22 Service Manual page 30

[ SYSCON PWB(VIDEO ENCODER) CIRCUIT DIAGRAM ]
A B
8
FROM/TO MPEG
P.CON+3.3VA
DGND
P.CON+3.3V.MP
P.CON+3.3V
AMCLK
CLK27
ABCLK
7
ALRCLK
SPDIF-DVD
ASDAT0 YUV0
YUV0
YUV1
YUV1
YUV2
YUV3
YUV4 YUV2
YUV5
YUV6
YUV3
YUV7
HSYNC
VSYNC YUV4
SPDIF-CD
DM1
YUV5
D_LOAD-H
YUV6
6
YUV7
FROM/TO SDRAM
DGND
P.CON+3.3V.SD
5.0
R8501
FROM/TO SYSCON
39K
5
DVD_RESET
MUTE
P.CON+3.3V
P.CON+D5V
DGND
SDA
SCL
RESET
MPGSTBY
SI2
SO2
N2012ZP600T25
SSC-MRST
SSC-MTSR
CD/DVD
SW1
4
3
2.4
0
14 13
15 16
4.9 2.4
2
1
A B
AV-20FD22
C D
VIDEO ENCORDER SCHEMATIC DIAGRAM
NC
0 0 5.0 0 0 0 0 0 0 0 0 5.0
0
26 25 24 23 22 21 20 19 18 17 16 15 14
0
0.7
P0 C/R
27 TTXDAT
13 Y/CVBS
0.7
P1 AGND
0.7
P2 CVBS/G
0.7
P3 AGND
VIDEO ENCORDER
1.8
P4 IC8501 CVBS/B
BT865AKRF
0.7
P5 AGND
0.4
P6 AGND
1.2
P7 COMP
0
GND VAA
1.3
5.0
VDD 39 SLEEP VREF
1 FS ADJUST
0
NC VBIAS
TTXREQ
0
40 41 42 43 44 45 46 47 48 49 50 51 52
0
5.0 5.0 5.0 1.6 0 0 5.0 5.0 5.0 3.2 3.0 0 0
STND BY
Q8501
0 2SC2412K
B8503
0 NC 2.0 0 4.9 4.9 0 2.7 NC 1.6 2.3 NC 1.6 1.1 1.6
12 11 10 9 8 7 6 5 4 3 2 1
17 18 19 20 21 22 23 24 25 26 27 28
0 0
2.0 4.9 1.5 5.0 4.9 0 4.9 0 0 4.9
NC
NOTE: THIS SCHEMATIC DIAGRAM IS THE LATEST AT THE TIME
OF PRINTING AND SUBJECT TO CHANGE WITHOUT NOTICE
C D
No.51821
AV-20FD22
E
(SYSCON PCB)
0.6
0.1
C8514
0
C8517 C8525
0405
6.3V 220 KA
0.2 L8501 R8513
22P CH 22P CH
1.8uH 1K
C8515
0
0.1 F
0.1
NC
0
0
11
C8512
3.6
0.1 F
5.0
C8510
C8526
0405
0.1 F
C8511 L8504 R8517
22P CH
2.6
0.1 F 1.8uH 1K
R8504
1.3 75 +-1%
B8505
N2012ZP600T25
C8535 B8501
N2012ZP600T25
0.1 F
C8534
6.3V 47
KA
NC
0 0 0 0 0 0 0 0
16 15 14 13 12 11 10 9
1 2 3 4 5 6 7 8
1.6 0
1.6 0 0 0 0 0
9
DIGITAL AUDIO SIGNAL(PB)
RECORD COLOR SIGNAL
PLAYBACK LUMINANCE SIGNAL
NOTE: THE DC VOLTAGE AT EACH PART WAS
MEASURED WITH THE DIGITAL TESTER PLAYBACK COLOR SIGNAL
DURING PLAYBACK
AUDIO SIGNAL(PB)
E
2-17 2-18
F G
FROM/TO POWER
CP8501_1
IMSA-9604S-18Z14
SI2
TX 1
SO2
RX 2
SSC-MRST
SSC-MRST 3
SSC-MTSR
SSC-MTSR 4
SW1
SW1 5
DVD_RESET
DVD RESET 6
L8503 0405
D_LOAD-H
D LOAD 7
1.8uH
P.CON+A5V 8
GND 9
GND 10
P.CON+3.3VA 11
P.CON+D5V 12
10
P.CON+D5V 13
GND 14
P.CON+3.3V 15
P.CON+3.3V 16
GND 17
SPDIF
SPDIF-134 18
12
CP8502_1
IMSA-9604S-18Z14
GND 1
CVBS (DVD Y) 2
GND 3
RED(DVD C) 4
GND 5
GREEN(CVBS) 6
GND 7
NC 8
GND 9
AUDIO_L
AUDIO-L 10
GND 11
AUDIO_R
AUDIO-R 12
GND 13
GND 14
NC 15
ZERO
ZERO 16
DVD_RESET
DVD RESET 17
MUTE
MUTE 18
R8520
1K
PCB010
VMA215
F G
No.51821
H
8
7
6
5
4
3
2
1
H