Read Sony CDX-727 Service Manual online
CDX-727
– 21 –
– 22 –
11
9
12
13
7
6
5
3
8
61
47 48 46 50
29
46
76
77
25
27
45 44 49 59
16
19
17
18
20
A
B
PCMD, BCK,
LRCK, WDCK
LRCK, WDCK
PCMD
BCK
LRCK
LRCK
WDCK
DATI
BCKI
LRCI
WDCI
4
DIN
RFCK
WFCK
XROF
C4M
C4M
XROI
XROI
SCOR
RFCK
GTOP
RFCK, GTOP, WFCK,
C4M, XROF
C4M, XROF
WFCK
WFCK
2
31, 30, 33, 32
1, 2, 24, 25
25 – 22, 40 – 36, 27
9 – 12, 14 – 18, 5
DSP
INTERFACE
DATA
LINKING
CONTROL
SELECTOR
D-RAM INTERFACE
READ/WRITE
BASE
COUNTER
VWA
ADDRESS MONITOR
CPU INTERFACE
SDTI
1
GRST
60
GSCR
SCK
DATA
GRSCOR
79
CSI
78
CSO
77
7 6 5
CCLK
CSI
76
REQ
74
BUSY
4 56
BUSY
CCLK
SCOR
WFCK
8
9
SCLK
SSI
SDTI
41 42 28 26
CLOCK
SDTO
XLT
XRDE
XWRE
XSOE
XQOK
SYSTEM CONTROLLER
IC201 (2/3)
DIGITAL FILTER, D/A CONVERTER,
LOW-PASS FILTER
IC601
05
CD TEXT DECODER
IC501
D-RAM
IC402
S-RAM
IC502
A0 – A9
D1 – D4
XTAI
TIMING
GENERATOR
D/A
CONVERTER
INTERFACE
SERIAL
INPUT
INTERFACE
TIMING
GENERATOR
CPU
INTERFACE
OSC
MUTING
CONTROL SWITCH
Q601, 602
MUTING
Q610
LOW-PASS
FILTER
DIGITAL
FILTER
CIRCUIT
∆Σ
MODULATOR
CIRCUIT
DATA
D OUT
BCK
LRCK
DATA
BCK
LRCK
MCK
D-RAM CONTROLLER
IC401
DIGITAL
OUT
(Page 20)
D
SCLK
IC503
SBSO
(Page 20)
E
(Page 20)
G
SCOR
(Page 20)
F
DATA, CLOCK
(Page 20)
H
(Page 20)
(Page 20)
C
C16M
(Page 20)
I
(Page 24)
J
BU CHECK
(Page 24)
RESET
XRST
35
29
34
28
22
3
23
4
20 27
62 63
XRAS
XCAS
XWE
XOE
XRAS
D1 – D4
A0 – A9
11 – 13, 15 – 19
10 – 3, 25, 24, 21, 23, 2, 26, 1
11 – 18, 64 – 69, 74
DO0 – DO7
20 – 27
DATA0 – DATA7
A0 – A14
ADD0 – ADD14
XCAS
XWE
CE
CE
WE
WE
XOE
ESPXLT
XRDE
XWRE
XSOE
XQOK
GRSRT
• SIGNAL PATH
: CD PLAY
CSO
REQ
BUCK
D501
X601
16.9344MHz
RO
LO
XT
AL
EXT
AL
HS
EMP
EMP
ML
XO
XI
28
78
21
19
44
45
A.MUTE
43
RESET
75
16
15
9
5
22
23
24
13
X501
10MHz
30
29
MUTING
Q620
R
L
CN901 (1/2)
AUDIO OUT
RST
GTOP
RESET
7-2.
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