24
24
CDX-M850MP
• R-ch is omitted due to
same as L-ch.
• Signal path
:CD
:CD-R/RW(MP3)
84
85
82
83
16
12
D/A
CONV
TRACKING
ERROR
FORCUS
ERROR
9
1
OSC
EFM
DEMOD
SERVO
CTL
RF
EQ
52
56
54
55
DSUB CODE
PROCESS
8
7
6
5
4
3
2
33
40
9
10
83
84
85
35
36
37
28
I/F
87
86
97
98
LD
DRIVE
Q1
FOCUS
COIL
DRIVE
TRACKING
COIL
DRIVE
SLED
MOTOR
DRIVE
SPINDLE
MOTOR
DRIVE
LOADING
MOTOR
DRIVE
6
5
23
2
15
16
17
18
13
14
11
12
9
10
26
62 63 64 65
17
18
59
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW3
(DISC IN)
SW2
(SELF)
SW4
(LIMIT)
X1
16.9344MHz
X2
12.288MHz
OPTICAL PICK-UP
KSS-721A
I-V
CONV.
CDL
STB
AO
TSO
38 PACK
34 TSTB
TSI
27 FLAG
TSCK
CD_RST
RFOK
XTALEN
/RESET
STANDBY
REQ
MIDIO(I2C_SDA)
MICK(I2C_SCL)
X1
SDO
SDIO
BCKIA
LRCKIA
63 XTAL
65 EXTAL
INSW/PH2
11
SW5
(DOWN)
D_SW
SELF SW
LIMIT_SW
LOAD
EJECT
R-CH
TUNER
SECTION
A
A-ATT
TUNER
SECTION
B
23
24
M
M
M
LOUT
ROUT
PACK
TSTB
TSI
TSCK
SI
RFOK
FLAG
C16M
DIN
DECXRST
DECSTBY
DECINT
SDA
SCL
DOUT
SCKIN
SCKO
LRCKIN
LRCK
SO
SCK
STB
AO
XTALEN
RST
RSTX
92
BUCHK
91
BUSON
78
UNI CK
77
UNI_SI
76
UNI_SO
75
LINKOFF
BU CHK
BUSON
BUS-CLK
BUS-SI
BUS-SO
LINK-OFF
93
A-ATT
A
C
B
D
E
F
PD
LD
B
D
A
C
E
F
PD
A+5V
LD
APC
FCS-
FCS+
TRK+
TRK-
SL-
SL+
SP+
SP-
LD-
LD+
FOCUS
COIL
TRACKING
COIL
FD
TD
SD
MD
LOAD
EJECT
IC3
CD MASTER CONTROL
IC1
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC2
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
FD
TD
SD
MD
38
28
29
30
31
32
33
34
62
9
12
13
14
2
3
72
80
1
19
39
5
81
6
4
1
2
IC12
IC5
DSP
IC7
5V 3.3V
17
3
14
12
7
16
18
6
8
13
4
2
5
15
9
11
SYSRST
DISPLY
SECTION
C
DISPLY
SECTION
D
71
CDMON
CDMON
94
CDON
CDON
73
CLOSE
CLOSE
74
OPEN
OPEN
21-23
25-29
20-13
3,2,31
1,12,4
11,7,10
46,47
49-51
53-55
3,4
7,10
11,15
38-36
34-31
41,42
45,44
32
30
5
16
17
43
OE
CS1
OE
CE
WR
WR
IO0-IO7
DQ1-DQ3,
IO4-IO8
AD0-AD16
A0-A16
IC4
S-RAM
+2.5V
(IC5)
BU+3.3V
3
+2.5V
REG
2
IC6
4-2. BLOCK DIAGRAM — CD SECTION —
(Page 25)
(Page 25)
(Page 26)
(Page 26)