Diagrams; Block Diagram -Cd Section - Sony CDX-GT40W Service Manual

3-1. BLOCK DIAGRAM — CD SECTION —
DETECTOR
PD2
PD2
PD1
PD1
E
E
F
F
VC
LASER DIODE VC
AUTOMATIC
LD POWER
CONTROL
Q21
PD LD
MON OUT
OPTICAL
PICK-UP BLOCK
(KSS1000E)
2-AXIS DEVICE
FCS+
FCS–
(FOCUS)
(TRACKING)
TRK+
TRK–
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
CDX-GT40W/GT400/GT450/GT450S
SECTION 3

DIAGRAMS

96 FPI2 RFO 89 88 AGCI RFEQO 83 81
82
94 FNI2
97 FPI1
95 FNI1
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
100 TNI RFRP 3 2 RFZI
98 TEI 6
TPI 7 TEZI
84 VRO
91 LDO MDI 92
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
OPIN4+ 27 VC
16 OPIN4– 26 9 F0O
VO4–
15 VO4+ OPOUT4 25
OPIN3+ 24
18 10 TRO
VO3– OPIN3– 23
17 VO3+ OPOUT3 22
14 OPOUT1 4 12 FMO
VO1+
M
13 DMO
13 VO1– OPOUT2 7
BIAS 20
MUTE 21
12 VO2+
M
11 VO2–
10 VOL+ LOAD
M
FWD 1
9
VOL–
REV 28
RFI LO 30
RFRPI
27
RO R-CH
51
PIO3
48
PIO0
MSTBY 36
ZDET 58
/RST 37
/CCE 43
42
BUCK(CLK)
BUS3(SI) 41
BUS2(SO) 40
BUS1 39
38
BUS0
XI 23
X2 X1
16.934MHz 12MHz
XO 24
SW1
(DOWN)
SW2
(SELF)
SW3
(DISC IN)
SW4
(LIMIT)
17 17
CDX-GT40W/GT400/GT450/GT450S
• R-ch is omitted due to same as L-ch.
• Signal Path
: CD PLAY
UNISI 56
RXD 25
UNISO 57
TXD 26
UNICKI 58
BUS_ON 50
37 DEC_XMUTE
BU_IN 51
30 DEC_INT
RSTX 75
27 DEC_SSTBY
A_ATT 60
15 CD_ZDET
LINKOFF 59
14 CD_XRST
13 CD_XCCE
12 CD_BUCK
11 CD_BUS3
10 CD_BUS2
EJECT_OK 61
8 CD_BUS1
7 CD_BUS0
MECON 63
CDON 64
CD ZMUTE 66
SYSTEM CONTROL
IC3
MECON_CHK 67
MECHA+6V
CDON_CHK 68 SERVO+3.3V
81 X1
+1.5V ON/OFF
80 X0
+1.5V SWITCH 5
Q2,3
46 MEC_DSW
+1.5V
53 MEC_SELFSW
1.5V_ON
CDON_1500MV 1
45 MEC_INSW
42 MEC_LIMIT
6 DRVON
43 MEC LOAD
44 MEC EJECT
MAIN
A
CD-L
SECTION
(Page 18)
UNI SI
UNI SO
UNI CLK
MAIN
B
BUS ON
SECTION
B/U CHECK (Page 18)
SYS RST
A-ATT
LINK ON/OFF
SYSTEM CONTROL
IC501 (1/3)
89 EJECT_OK_SW
99 CDM_ON
98 CD_ON
93 Z-MUTE
+1.5V REG
IC6
VOUT VDD 1 BU+3.3V
CE 3