Diagrams; Block Diagram - Cd Section - Sony CDX-S2250 Service Manual
Fm/mw/lw compact disc player
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Also See for CDX-S2250:
- Operating instructions manual (16 pages) ,
- Operating instructions manual (92 pages) ,
- Installation/connections (2 pages)
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3-1. BLOCK DIAGRAM – CD SECTION –
DETECTOR
PD1
PD2
96
FPI2
PD2
PD1
FNI2
94
97
FPI1
95
FNI1
E
E
99
TNI
F
F
98
TPI
LASER DIODE
AUTOMATIC
LD
POWER
91 LDO
CONTROL
Q1
PD
LD
MON OUT
OPTICAL
PICK-UP BLOCK
(KSS1000E)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
2-AXIS DEVICE
FCS+
16
VO4–
FCS–
15
VO4+
(FOCUS)
(TRACKING)
TRK+
18
VO3–
TRK–
17
VO3+
14
VO1+
M902
M
(SLED)
13
VO1–
12
VO2+
M901
M
(SPINDLE)
11 VO2–
10
VOL+
M903
M
(LOADING)
9
VOL–
CDX-S2250/S2250S
SECTION 3
DIAGRAMS
RFO
RFEQO
79
77 RFI
87
85 AGCI
78 RFRPI
86 RFDCI
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
RFRP
3
1 RFZI
TEI
6
7 TEZI
92
MDI
MOTOR DRIVE
IC1
OPIN4– 26
9 F0O
OPOUT4 25
10 TRO
OPIN3– 23
OPOUT3 22
46 IO0(/HSO)
12 FMO
OPOUT1 4
OPIN2 7
13 DMO
47 IO1(/UHSO)
MUTE 21
FWD
1
REV
28
LO
30
RO
27
R-CH
56
37 DEC XMUTE
MUTE
REQ
53
30 DEC INT
STBY
43
27 DEC SSTBY
ZDET
18
15 CD ZDET
42
14 CD XRST
/RST
41
/CCE
13 CD XCCE
BUCK
40
12 CD BUCK
BUS3
39
11 CD BUS3
BUS2
38
10 CD BUS2
37
8 CD BUS1
BUS1
BUS0
36
7 CD BUS0
SBSY
14
52 CD SBSY
CD
SYSTEM CONTROL
IC3
XI
23
81 X1
X2
X1
16.934MHz
12MHz
24
80 X0
XO
SW1
46 MEC_DSW
(DOWN)
SW2
53 MEC_SELFSW
(SELF)
SW3
45 MEC_INSW
(DISC IN)
SW4
42 MEC_LIMIT
(LIMIT)
43
MEC LOAD
44
MEC EJECT
13
13
• R-ch is omitted due to same as L-ch.
• Signal Path
: CD PLAY
CD-L
UNISI
56
UNI SI
RXD
25
UNI SO
UNISO
57
TXD
26
UNICKI
58
UNI CLK
BUS ON
50
BUS ON
BU IN
51
B/U CHECK
A ATT
60
ATT
RSTX
75
SYS RST
SYSTEM CONTROL
IC501 (1/3)
EJECT OK
61
89
EJECT OK SW
MECON
99
CDM ON
63
CDON
64
98
CD ON
ZMUTE
66
93
Z MUTE
MECON CHK
67
MECHA+6V
CDON CHK
68
BU+3.3V
+1.5V REG
IC6
+1.5V ON/OFF
SWITCH
5
VOUT
VDD
1
+1.5V
Q2,3
CE
3
+1.5V
DECON
1
CDX-S2250/S2250S
MAIN
A
SECTION
(Page 14)
MAIN
B
SECTION
(Page 14)
DISPLAY
C
SECTION
(Page 15)
BU+3.3V
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