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

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