Audio/Video Cd Section - Sony HTC-VX500 Service Manual

AUDIO/VIDEO CD SECTION

MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
DATA,
BCK,
LRCK,
CD-DATA
C2PO DATA
B 4
LEVEL
BCK CD-BCK
SHIFT 3
(Page 16)
CD-LRCK
LRCK
IC501 5 CD-ROM
INTERFACE
CIRCUIT
C2PO CD-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 13 – 15, 17 – 21
A0 – A8 DQ1 – DQ16 A0 – A10
D-RAM PROGRAM ROM
IC507 IC506
28 29 14 13
19 XIN
20 XOUT
X401
8MHz
(Page 19)
RESET
D
IIC-DATA, IIC-CLK
F
(Page 19)
16
DA-DATA
MPEG 110
AUDIO
DA-BCK
AUDIO INTERFACE 111
DA-LRCK
DECODER
CIRCUIT
108
DA-XCLK
86
MPEG
Y-OUT
SYSTEM
MPEG VIDEO
69
DECODER
VIDEO PROCESS
C-OUT
75
DECODER CIRCUIT
VCK-IN
106
PGIO2/VSYNC/CSYNC
93
D-RAM/ROM INTERFACE CPU INTERFACE
MD0 – MD15
10 – 15, 17, 19, 21, 23 – 29 37 38 42 40 60 113 114 121 112 119 117
BUFFER
Q502
25, 4, 28, 29, 3, 2, 30
O0 – O7 A11 – A17
22
S501
SYSTEM SELECT
NTSC
AUTO
EXPANSION
IC402 PAL
D502
(SELF DIAGNOSIS)
14 13 18 12 11 9 10
IIC-DATA
IIC-CLK
(Page 16)
DIGITAL FILTER,
A
D/A CONVERTER
IC509
DIGITAL
DATA
18
INPUT FILTER,
BCK D/A
LOW-PASS
17 INTERFACE NOISE
CONVERTER
LRCK
CIRCUIT SHAPER
19
CIRCUIT
768FSO
21
OSC
384FSO
BUFFER
20
IC504 MCKO
4 MODE
CONTROL
TIMING CONTROL/
CLOCK GENERATOR
24 1 9 8 7 10
X503
27MHz
DATA
CLK
45 BUS
DF LATCH 22
33 CLK1 77
DEVICE RESET
31 DATA1O
32 DATA1I
CL680 SEL
21
VIDEO
20 BUFFER
CL680 HINT
Q303
23 CL680 HRDY
24 CL680 RESET
CD MECHANISM CONTROLLER
IC502 (2/2)
93 NT/PAL
VIDEO SHARPNESS
73 TEST LED B.P.F. BUFFER
FILTER
Q301 Q302
72 UTOI
VIDEO
19 ITOU B.P.F. BUFFER
Q304
29 RXD
30 TXD
SHARPNESS
12 XRESET SHARPNESS 34 CONTROL SWITCH
Q306
VMUTE 65
29 CLK
30 DATA
15 13
X501
10MHz
17 17
VOUTL
14 LOW-PASS
FILTER
FILTER
VOUTR
IC101
11 R-CH
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
3 1
VIDEO AMP
IC401 (1/2)
VIDEO
MUTE
Q453
VIDEO AMP
IC401 (2/2)
VIDEO VIDEO
BUFFER BUFFER
Y/C MIX
5 7
Q307 Q308
Q310
VIDEO
MUTE
Q454
HTC-VX500
(Page 19)
CD-L
E
(Page 16)
RESET
C
C
1
J301
3
S VIDEO OUT
4
2
Y
J601
VIDEO IN
VIDEO SELECT
IC601
1 VIDEO
BUFFER
7
MONITOR OUT
3 Q601
2
CD POWER
J
(Page 19)