Diagrams; Block Diagram - Cd Section - Sony CDX-GT500 Service Manual

3-1. BLOCK DIAGRAM — CD SECTION —
DETECTOR
PD1
PD2
PD2
PD1
E
E
F
F
LASER DIODE
AUTOMATIC
LD POWER
CONTROL
Q21
PD LD
MON OUT
OPTICAL
PICK-UP BLOCK
(KSS1000E)
2-AXIS DEVICE
FCS+
FCS–
(FOCUS)
(TRACKING)
TRK+
TRK–
M902
M
(SLED)
M901
M
(SPINDLE)
M903
M
(LOADING)
CDX-GT50W/GT500/GT500EE/GT550
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SECTION 3

DIAGRAMS

RFO
96 FPI2 RFEQO 83 81 RFI 89 88 AGCI
82 RFRPI
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
91 LDO MDI 92
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
16 OPIN4– 26 9 F0O
VO4–
15 VO4+ OPOUT4 25
18 10 TRO
VO3– OPIN3– 23
17 VO3+ OPOUT3 22
14 OPOUT1 4 12 FMO
VO1+
13 DMO
13 VO1– OPOUT2 7
12 VO2+
11 VO2–
MUTE 21
10 VOL+
FWD 1
9
VOL–
REV 28
LO 30
27
RO R-CH
51 37 DEC XMUTE
PIO3
48 30 DEC INT
PIO0
MSTBY 36 27 DEC SSTBY
ZDET 58 15 CD ZDET
/RST 37 14 CD XRST
/CCE 43 13 CD XCCE
42 12 CD BUCK
BUCK
BUS3 41 11 CD BUS3
BUS2 40 10 CD BUS2
BUS1 39 8 CD BUS1
38 7 CD BUS0
BUS0
SYSTEM CONTROL
XI 23 81 X1
X2 X1
16.9344MHz 12MHz
XO 24 80 X0
SW1
46 MEC_DSW
(DOWN)
SW2 53 MEC_SELFSW
(SELF)
SW3
45 MEC_INSW
(DISC IN)
SW4
42 MEC_LIMIT
(LIMIT)
6 DRVON
43 MEC LOAD
44 MEC EJECT
17 17
CDX-GT50W/GT500/GT500EE/GT550
• R-ch is omitted due to same as L-ch.
• Signal Path
: CD PLAY
UNISI 56 UNI SI
RXD 25
UNISO 57 UNI SO
TXD 26
LINK OFF
LINK OFF 59
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
IC711 (1/3)
EJECT OK 61 89 EJECT OK SW
MECON 63 99 CDM ON
98 CD ON
CDON 64
ZMUTE 66 93 Z MUTE
CD
IC3
MECON CHK
67 MECHA+6V
CDON CHK 68 D+3.3V
+1.5V REG
IC6
+1.5V ON/OFF
+1.5V SWITCH 5 VOUT VDD 1
Q2,3
CE 3
+1.5V
CDON 1
1500MV
MAIN
A
CD-L
SECTION
(Page 18)
MAIN
B
SECTION
(Page 18)
DISPLAY
C
SECTION
(Page 19)
BU+3.3V