Sony CDX-S2270EE, Service Manual

Page: 13 / 46

13 13
CDX-S2270EE
CDX-S2270EE
79 RFO
DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
87 RFEQO
3
RFRP
6 TEI
85 RFI
86 RFRPI
1 RFZI
7 TEZI
9 F0O
PD1
PD2
E
F
I-V AMP
PD LD
DETECTOR
77 AGCI
78 RFDCI
94
96
95
97
99
98
TNI
FPI1
FNI1
FPI2
FNI2
TPI
91 LDO 92 MDI
(FOCUS)
(TRACKING)
2-AXIS DEVICE
OPTICAL
PICK-UP BLOCK
(KSS1000E)
• Signal Path
: CD PLAY
LASER DIODE
M
M
M
18
17
VO3–
VO3+
14
13
VO1+
VO1–
12
11 VO2–
VO2+
10
9
VOL+
VOL–
FWD
REV
1
28
OPIN4– 26
OPOUT4 25
10 TRO OPIN3– 23
46 IO0(/HSO)
OPOUT3 22
12 FMO OPOUT1 4
13 DMO OPIN2 7
47 IO1(/UHSO) MUTE 21
16
15
VO4–
VO4+
M903
(LOADING)
M901
(SPINDLE)
M902
(SLED)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
56 MUTE
53 REQ
43 STBY
18 ZDET
42 /RST
41 /CCE
40 BUCK
39 BUS3
CD-L
MAIN
SECTION
A
30 LO
27 RO R-CH
27 DEC_SSTBY
15 CD_ZDET
14 CD_XRST
13 CD_XCCE
53 MEC_SELFSW
45 MEC_INSW
42 MEC_LIMIT
12 CD_BUCK
11 CD_BUS3
38 BUS2 10 CD_BUS2
37
BUS1 8 CD_BUS1
36 BUS0 7 CD_BUS0
14 SBSY 52 CD_SBSY
81 X1
80 X0
MEC_LOAD 43
MEC_EJECT 44
CD
SYSTEM CONTROL
IC3
+1.5V REG
IC6
SYSTEM CONTROL
IC501 (1/3)
37 DEC_XMUTE
30 DEC_INT
SW2
(SELF)
46 MEC_DSW
SW1
(DOWN)
SW3
(DISC IN)
SW4
(LIMIT)
56 UNISI
25
RXD
57 UNISO
58 UNICKI
50 BUS_ON
51 BU_IN
75 RSTX
61 XFLASH&EJECT_OK
67 MECON_CHK
1 NC
1.5V_ON
64 CDON
66 ZMUTE
60 A_ATT
26 TXD
PD1
E
F
LD+
MON OUT
FCS+
FCS–
TRK+
TRK–
PD2
AUTOMATIC
POWER
CONTROL
Q1
+1.5V ON/OFF
SWITCH
Q2,3
• R-ch is omitted due to same as L-ch.
24
23
X2
16.934MHz
X1
12MHz
XI
XO
DISPLAY
SECTION
C
MAIN
SECTION
B
EJECT_OK_SW
UNI SI
75 RST SYS RST
UNI SO
ATT
UNI CLK
BUS ON
B/U CHECK
BU+3.3V
89
CD_ON
VOUT
98
62 OPEN_REQ OPEN REQ 54
CD_MUTE-R
MECHA+6V
93
68
CDON_CHK
1 5 VDD
3 CE
SERVO+3.3V
+1.5V
+1.5V
BU+3.3V
3-1. BLOCK DIAGRAM — CD SECTION —
(Page 14)
(Page 14)
SECTION 3
DIAGRAMS
(Page 15)