Read Sony CDX-C7850 Service Manual online
59 RFDC
55 FE
57 TE
80 SSTP
89
PCMD
87
LRCK
85
WDCK
91
BCK
DIGITAL SERVO/
DIGITAL SIGNAL PROCESSOR
IC501
71 TFDR
72 TRDR
72 TRDR
73 FFDR
74 FRDR
69 SFDR
70 SRDR
79 MDP
3
PD1
4
PD2
7
E
6
F
17
RFO
16
FE
14
TE
CD5V
RF AMP, LD-APC ERROR AMP
IC1
OPTICAL PICK-UP
KSS-521A
2
PD
PD
LD
LD DRIVE
Q3
1
LD
19
LD ON
2
TR+
1
TR-
14 F+
13 F-
23
OP+
24
OP-
10
OP+
TRACKING
FOCUS
11
OP-
9
MUTE
20
OP+
19
OP-
OP IN+
OP IN-
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
SPINDLE MOTOR DRIVE
IC601
16 S+
17 S-
M902
(SLED)
12 SRDT
3
SCOR
5
MCK
1
EXCK
2
SBSO
4
WFCK
EEPROM
IC551
11 SCLK
13 DQSY
9
DATI
10 LRCI
11 WDCI
7
BCKI
16
15
17
17
DRAM CONTROLLER
IC2
20
|
23
•
25
•
34
|
38
33
XOE
32
XCAS
27
XWE
26
XRAS
A0-A9
D1-D4
45
SDTI
84
C4M
33
DOUT
28
SCOR
27
XROF
3
C4M
2
7
1
2
2
3
4
5
5
6
1
2
3
4
5
6
8
9
10
11
12
13
14
7
8
8
9
10
11
12
13
14
DIN
59 SCOR
4
XROI
20
WFCK
7
EXCK
6
SBSO
8
SQCK
CLOK
9
SQSO
1
WFCK
42 XWRE
43 WRDE
44 XLT
10
SENS
11
SCLK
24
GFS
37
FOK
47 XSOE
48 SDTO
57 XQOK
58 GSCR
12
DATA
63
46
14
GRST
SCK
25
RFCK
21
GTOP
5
RFCK
6
GTOP
2
DATA
3
BCK
1
LRCK
16
VOUTL
CDINL
13
VOUTR
R-CH
1
LINE AMP
IC403
3
D/A CONVERTER
IC401
DRAM
IC4
X401
16.9344MHz
5
XTI
6
XTO
A0-A9
D1-D4
14
XTAI
LRCK
BCK
DATA
4
CLKO
27 DM1
4
XRAS
3
XWE
23 XCAS
22 XOE
M
12 DROUT+
13 DROUT-
M901
(SPINDLE)
25
24
M
M903
(LOADING)
M
INVERTER
9
L+
7
L-
2
LMOT1
4
LMOT2
LOADING MOTOR DRIVE
IC6
X1
10MHz
TX
SW4
(DOWN)
SW3
(LIMIT)
SW1
(DISC IN)
SW2
(SELF)
28
|
31
67 CD DATA
42 SCLK
54 FOK
55 GFS
16
43
44
44
CD SYSTEM CONTROL
IC5
57 SENS
65 SCK 2
66 SI 2
20 LD ON
62 IN SW
63 SELF SW
14 LM EJ
15 LM LOM
31 X IN
32 X OUT
17 CDMON
18 CD ON
9
DRV OE
10 D SW
45
GRSRST
ESPSDT
ESPXQOK
EMPH O
46
68
69
69
70
ESPXLT
ESPXRDE
ESPXWRE
GRSCOR
71
56
48
48
49
DATA
CLK
SCOR
ESPXSOE
64
19
59
61
52
BUS SI
BUS ON
AMUT
CD CKO
CE
51
8
60
30
RESET
BU IN
LNK OFF
BUS CLK
5
•
9
|
12
•
14
|
18
1
•
2
•
24
•
25
POWER
CONTROL
Q402, 403
5V REG
Q401
CD
CONTROL
Q404, 405
SWITCH
Q1, 5
BATT
MD5V
D/A5V
CD5V
BU5V
SWITCH
Q2, 4
LPF
IC404
MD5V
VC
BUS SI
BUS ON
AMUT
RESET
BU IN
LINK OFF
BUS CLK
53
BUS SO
BUS SO
4
TUNER SECTION
DISPLAY SECTION
DISPLAY SECTION
2
3
Signal path
: CD
: CD
TUNER
SECTION
1
04
4-2. BLOCK DIAGRAM — CD SECTION —
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CDX-C7850
(Page 33)
(Page 33)
(Page 31)
(Page 31)
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