MCE-CX80K
15
15
— AUDIO/VIDEO SECTION —
PROGRAM ROM
IC506
16
• SIGNAL PATH
• R-ch is omitted due to
same as L-ch.
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
D/A
CONVERTER
INPUT
INTERFACE
CIRCUIT
OSC
BUFFER
IC504
LOW-PASS
FILTER
IC101
LINE
AMP
IC151
MIC AMP
IC702 (1/2)
DIGITAL ECHO
IC701
AMP ON
SWITCH
Q151
AMP ON
SWITCH CONTROL
Q181,182
BOOST
AMP
IC152
LINE
AMP
IC153
B.P.F.
B.P.F.
VIDEO
BUFFER
Q301
C
BUFFER
Q303
VIDEO
BUFFER
Q307
VIDEO
BUFFER
Q308
VIDEO
BUFFER
Q304
SHARPNESS
CONTROL SWITCH
Q306
SHARPNESS
FILTER
Q302
VIDEO
MUTE
Q454
Y
MUTE
Q453
Y/C MIX
Q310
VIDEO
AMP
Q452
Y
AMP
Q451
BUFFER
Q502
SWITCHING
Q501
LOW-PASS
FILTER
MODE
CONTROL
TIMING CONTROL/
CLOCK GENERATOR
DIGITAL FILTER,
D/A CONVERTER
IC509
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL PROCESSOR
IC505
SYSTEM CONTROLLER
IC502 (2/3)
14
11
VOUTL
VOUTR
R-CH
R-CH
10
RSTB
17
18
19
20
21
9
7
24
1
DATA
BCK
LRCK
CD-ROM
INTERFACE
CIRCUIT
MPEG
SYSTEM
DECODER
MPEG
VIDEO
DECODER
VIDEO
PROCESS
CIRCUIT
CPU
INTERFACE
AUDIO
INTERFACE
CIRCUIT
MPEG
AUDIO
DECODER
D-RAM/ROM INTERFACE
3
4
5
CD-DATA
C2PO
DATA
BCK
LRCK
DATA, BCK,
LRCK, C2PO
CD-BCK
CD-LRCK
6
CD-C2PO
MA0 – MA10
MD0 – MD15
D0 – D15
D0 – D15
A0 – A10
A0 – A8
384FSO
768FSO
4
MCKO
X503
27MHz
MD
XT2
XT1
14
13
29
28
38
42
40
22
32
21
20
33
31
23
24
60
69
75
113
110
111
108
106
HRDY
Y-OUT
86
DA-XCLK
VCK-IN
DA-DATA
DA-BCK
DA-LRCK
C-OUT
93
72
114
121
HSEL
112
HD-OUT
119
HD-IN
117
HCK
ML
8
MC
LEVEL
SHIFT
IC501
B
(Page 14)
MCLK
33.8MHz
A
(Page 14)
C
(Page 14)
D
(Page 16)
C
Y
DIGITAL
FILTER,
NOISE
SHAPER
CIRCUIT
58 – 56, 54, 52 – 50, 48, 46 – 44
10 – 15, 17, 19, 21, 23 – 29
16 – 19, 22 – 26
A0 – A10
12 – 5, 27, 26, 23
D8 – D14
A11 – A17
25, 4, 28, 29, 3, 2, 30
D0 – D7
O0 – O7
A0 – A10
DQ1 – DQ16
ADDRESS BUS
DATA BUS
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A8
13 – 15, 17 – 21
2 – 5, 7 – 10, 31 – 34, 36 – 39
WE
CE
RAS
LCAS
UCAS
CAS
RESET
HINT
CL680 RESET
CL680 HINT
CL680 HRDY
CL680 SEL
DATA1I
93
NT/PAL
TEST LED
CLK1
DATA1O
45
BUS
35 XVLEVEL DOWN
DATA
CLK
DATA
CLK
DATA, CLK
DF LATCH
47
LO BOOST
AMP ON
40
SHARPNESS
65
VMUTE
77
100
48
AUDIO MUTE
RAS0
MWE
MCE
BOOST
SWITCH
Q152
MUTING
Q153
BOOST
SWITCH CONTROL
Q183,184
MUTING CONTROL
SWITCH
Q905
MIC AMP
IC703 (2/2)
R-CH
MUTING
Q701
MIC1
J701
R-CH
R-CH
R-CH
DEVICE RESET
RESET
J302
VIDEO OUT
XOUT
XIN
X501
10MHz
NTSC
AUTO
PAL
S501
COLOR SYSTEM
94
MUSIC VOL
34
RTS1
D502
(SELF DIAGNOSIS)
73
13
15
PGIO2/VSYNC/CSYNC
37
22
RREF
+
+
L
R
J151
AUDIO OUT
E
(Page 16)
CD POWER
MIC AMP
IC702 (2/2)
MIC LEVEL
MIC2
J702
MIX AMP
IC703(1/2)
RV701
RV703
89
MIC CTRL
+