Block Diagram - Audio/Video Cd Section - Sony HCD-VX5A Service Manual

Q Q
7-2. BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
3 7 6 3 1 5 1 5 0
MCLK 33.8MHz
A
(Page 22)
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
DATA, BCK,
LRCK, C2PO
DATA CD-DATA
B 4
LEVEL
BCK CD-BCK
SHIFT 3
(Page 22)
LRCK CD-LRCK
IC501
5
CD-C2PO
C2PO
6
MA0 – MA10
58 – 56, 54, 52 – 50, 48, 46 – 44
ADDRESS BUS
DATA BUS
T E
L 1 3 9 4 2 2 9 6 5 1 3
16 – 19, 22 – 26 2 – 5, 7 – 10, 31 – 34, 36 – 39 12 – 5, 27, 26, 23
A0 – A8 DQ1 – DQ16 A0 – A10
D-RAM PROGRAM ROM
IC507 IC506
28 29 14 13
DATA, CLK
D
(Page 29 )
w w w
05
.
MPEG
AUDIO
IC505 AUDIO INTERFACE
DECODER CIRCUIT
MPEG
SYSTEM
MPEG VIDEO
CD-ROM DECODER
VIDEO PROCESS
INTERFACE
DECODER CIRCUIT
CIRCUIT
PGIO2/VSYNC/CSYNC
D-RAM/ROM INTERFACE
MD0 – MD15
10 – 15, 17, 19, 21, 23 – 29
37 38 42 40 60 113
13 – 15, 17 – 21 25, 4, 28, 29, 3, 2, 30
O0 – O7 A11 – A17
22
NTSC
AUTO
PAL
x a o
y
i
– 23 –
http://www.xiaoyu163.com
8
DA-DATA DATA
110
18 INPUT
DA-BCK BCK
111 17 INTERFACE
DA-LRCK
LRCK
CIRCUIT
108 19
DA-XCLK
86
768FSO
21
OSC
384FSO
BUFFER
20
IC504 MCKO
4
Y-OUT
69 TIMING CONTROL/
C-OUT CLOCK GENERATOR
75
VCK-IN
106
24
93
X503
CT503
CPU INTERFACE
27MHz
VIDEO FREQUENCY
(27MHz)
114 121 112 119 117
BUFFER
Q502
DATA
CLK
45 BUS
Q Q
DF LATCH
22
3 7 6 3
CLK1
33
31 DATA1O
32 DATA1I
21 CL680 SEL
20 CL680 HINT
23 CL680 HRDY
24 CL680 RESET
S501 CD MECHANISM CONTROLLER
IC502 (2/2)
SYSTEM SELECT
93 NT/PAL
D502
(SELF DIAGNOSIS)
73 TEST LED
DATA
29 CLK
CLK
30 DATA
SHARPNESS 34
VMUTE 65
u 1 6 3
.
15 13
X501
10MHz
http://www.xiaoyu163.com
2 4
9 9 8
DIGITAL FILTER,
D/A CONVERTER
IC509
DIGITAL
VOUTL
14
FILTER, LOW-PASS
D/A
LOW-PASS
NOISE
CONVERTER
FILER VOUTR
SHAPER
11
CIRCUIT
MODE
CONTROL
1 9 8 7 10
1 5 1 5 0 8 9 2 4
VIDEO
BUFFER
Q303
VIDEO VIDEO VIDEO
SHARPNESS
B.P.F. BUFFER BUFFER BUFFER
FILTER
Q301 Q307 Q308
Q302
VIDEO
B.P.F. BUFFER
Q304
SHARPNESS
CONTROL SWITCH
Q306
m
c o
– 24 –
HCD-VX5A/VX5AJ/VX7A
2
9 9
(Page 27)
CD-L
E
FILER
IC101
R-CH
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
(Page 22)
RESET
C
9 8 2 9 9
J301
S VIDEO OUT
C
1
3
4
2
Y
3 1
VIDEO AMP
IC401 (1/2)
VIDEO
MUTE
Q453
VIDEO AMP
J302
IC401 (2/2)
VIDEO OUT
Y/C MIX
5 7
Q310
VIDEO
MUTE
Q454