Read Sony CMT-M80V / HCD-M80 Service Manual online
HCD-M80
17
17
6-2.
BLOCK DIAGRAM – AUDIO/VIDEO CD Section –
PROGRAM ROM
IC508
• SIGNAL PATH
: CD PLAY (AUDIO)
: CD PLAY (VIDEO)
DIGITAL FILTER,
D/A CONVERTER
IC504
MPEG VIDEO/AUDIO DECODER,
VIDEO SIGNAL ENCODER
IC505 (2/2)
7
8
VOUTL
VOUTR
1
2
3
DATA
BCK
LRCK
DRADR0 – DRADR10
DRDAT0 – DRDAT15
D0 – D15
D0 – D15
A0 – A10
A0 – A10
74
18
73 72 68
6
7
201
203
204
CPSIG
AUDDTO0
AUDBCK
AUDLRCK
16
MLCK
205
AUDXCLKO
14
13
15
DATA
CLK
LAT
30
29
26
GPIO14
GPIO13
GPIO11
28
GPIO12
CSIG
34 – 37, 39 – 45
49 – 56, 59 – 66
23 – 26, 29 – 34, 22
A0 – A10
12 – 5, 27, 26, 31
D8 – D15
A10 – A17
23, 25, 4, 28, 29, 3, 2, 30
D0 – D7
DQ0 – DQ7
A0 – A9, A18
DQ0 – DQ15
ADDRESS BUS
DATA BUS
D-RAM
IC507
A0 – A10
13 – 15, 17 – 21
WE
24
OE
RAS
CAS
DRCAS
DRRAS
DRWEL
NVOEL
B.P.F.
1
VOUT
10 VIN
5
CONT IN
6
VOUT
1
VIN
5
BGP
8
TINT
B.P.F.
C AMP
IC303
Y AMP
IC304
LOW-PASS
FILER
IC102
IC102
70 76 77 78
DRDQM1
DRDQM0
DRBS
DRCK
13 14
GPIO1
GPIO0
15 19 18 16
GPIO3
GPIO4
GPIO5
GPIO2
• R-ch is omitted due to same as L-ch.
G
(Page 19)
CD-L
D
(Page 16)
DATA, CLK, LD
F
(Page 16)
SHARPNESS,
HUE
R-CH
2, 4, 5, 7, 8, 10, 11, 13, 42,
44, 45, 47, 48, 50, 51, 53
16
17
20
CLK
BA0
LDQM
38
15
UDQM
39
92
90
87
123
L CDDATA
L CDBCK
L CDLRCK
L CDC2PO
L CDC2PO
110
103
108
112
L DDAT
L DCLK
L XLAT
L SENS
L SENS
95
125
99
115
L SCOR
L SQSO
SQCK
SCLK
SCLK
132
120
106
L GFS
FOK
XRST
DATA
BCK
LRCK
C2PO
B
(Page 16)
DATA, BCK,
LRCK, C2PO
LRCK, C2PO
DATA
CLOK
XLAT
SENS
SCOR
SQSO
SQCK
SCLK
GFS
FOK
XRST
C
(Page 16)
DATA, CLOK, XLAT, SENS,
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
SCOR, SQSO, SQCK,
SCLK, GFS, FOK, XRST
24 GPIO9
CONT
A
(Page 16)
81 SYSRST
SYSRST
E
(Page 16)
+3.3V
REGULATOR
Q581
CD +5V
5
VDD
6
VCC
DATA
CLK
LD
SDO
SDI
SCK
SCS
SOK
SRQ
3
VRF
VIDEO
LEVEL
LEVEL
RV501
C SYNC BUFFER
IC302
VIDEO AMP
IC307
Y SYNC BUFFER
Q302
SYNC BUFFER
Q301
SYNC
SEPARATOR
IC301
+
8
BUF
IN
IN
1
BUF
OUT
6
OUT
5
OUTSAG
3
IN
2
STBY
VIDEO MUTING
CONTROL SWITCH
Q370
J700
VIDEO OUT
HUE
SHARPNESS
(Page 19)
V MUTE
H
(Page 19)
SDO, SDI, SCK,
SCS, SOK, SRQ
J
207
206
CLKB
CLKA
X502
27MHz
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