Block Diagram - Audio/Video Cd Section - Sony HCD-V919AV Service Manual

7-2. BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
DATA, BCK,
LRCK, C2PO
CD-DATA
DATA
B
4
LEVEL
BCK CD-BCK
SHIFT 3
(Page 24)
LRCK CD-LRCK
IC501
5
INTERFACE
CD-C2PO
C2PO
6
MA0 – MA10
58 – 56, 54, 52 – 50, 48, 46 – 44
ADDRESS BUS
DATA BUS
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
X401
8MHz
FORMER TYPE
(Page 30)
RESET
D
DATA, CLK
F
(Page 29)
05
MPEG
AUDIO
AUDIO
INTERFACE
DECODER
CIRCUIT
MPEG
SYSTEM
MPEG VIDEO
CD-ROM DECODER
VIDEO PROCESS
DECODER CIRCUIT
CIRCUIT
PGIO2/VSYNC/CSYNC
D-RAM/ROM INTERFACE CPU 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
EXPANSION
XIN IC402
19 PAL
20 XOUT
14 13 18 12 11 9 10
– 25 –
(Page 24)
A
DA-DATA DATA
110
18 INPUT
DA-BCK BCK
INTERFACE
111 17
DA-LRCK
LRCK
CIRCUIT
108 19
DA-XCLK
86
768FSO
21
OSC
384FSO
BUFFER 20
IC504 MCKO
4
Y-OUT
69 TIMING CONTROL/
CLOCK GENERATOR
C-OUT
75
VCK-IN
106
24
93
X503
27MHz
114 121 112 119 117
BUFFER
Q502
DATA
CLK
45 BUS
DF LATCH
22
33 CLK1 DEVICE RESET 77
31 DATA1O
32 DATA1I
CL680 SEL
21
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
72
UTOI
19
ITOU
29
RXD
30 TXD
34
12 XRESET SHARPNESS
DATA
VMUTE 65
29 CLK
CLK
30 DATA
NEW TYPE
15 13
X501
10MHz
DIGITAL FILTER,
D/A CONVERTER
IC509
DIGITAL
VOUTL
14
LOW-PASS
FILTER,
D/A
LOW-PASS
FILER
NOISE
CONVERTER
FILER VOUTR
SHAPER IC101
11
CIRCUIT
MODE
CONTROL
1 9 8 7 10
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
– 26 –
HCD-V919AV
(Page 29)
CD-L
E
R-CH
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
(Page 24)
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
Y/C MIX
5 7
Q310
VIDEO
MUTE
Q454