Diagrams; Block Diagram - Cd Servo Section - Sony MEX-BT5000 Service Manual

MEX-BT5000
SECTION 5

DIAGRAMS

5-1. BLOCK DIAGRAM – CD SERVO Section –
DETECTOR
PD2
PD2
PD1
PD1
E
E
F
F
VC
LASER DIODE
LD
PD LD
MON OUT
OPTICAL
PICK-UP BLOCK
(KSS1000E)
2-AXIS DEVICE
FCS+
FCS–
(FOCUS)
(TRACKING)
TRK+
TRK–
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
MEX-BT5000
96 FPI2 RFO 89 88 AGCI RFEQO 83
FNI2
94
97 FPI1
95 FNI1
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC2
100 TNI RFRP 3 2 RFZI
TEI
98 TPI 6 7 TEZI
84
VRO
VC
AUTOMATIC
POWER
91 LDO 92
MDI
CONTROL
Q21
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
OPIN4+ 27 VC
16 OPIN4– 26
VO4–
15 VO4+ OPOUT4 25
OPIN3+ 24
18
VO3– OPIN3– 23
17 VO3+ OPOUT3 22
14 VO1+ OPOUT1 4
M
13 OPOUT2 7
VO1–
BIAS 20
12 VO2+ MUTE 21
M
11 VO2–
10 VOL+ LOAD
M
FWD 1
9 VOL–
REV 28
81 RFI LO 30
82 RFRPI
RO 27 R-CH
51
PIO3
PIO0 48
MSTBY 36
ZDET 58
37
/RST
43
/CCE
42
BUCK(CLK)
BUS3(SI) 41
BUS2(SO) 40
BUS1 39
38
BUS0
XI 23
X2 X1
9 FOO
16.934MHz 12MHz
XO 24
SW1
10 TRO
(DOWN)
SW2
(SELF)
12 FMO
13 DMO SW3
(DISC IN)
SW4
(LIMIT)
24 24
• 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
LINKOFF 59
15 CD_ZDET
14 CD_XRST
A_ATT 60
13 CD_XCCE
12 CD_BUCK
11 CD_BUS3
10 CD_BUS2
8 CD_BUS1
7 CD_BUS0
CD
SYSTEM CONTROL
IC3
XFLASH & EJECT_OK 61
81 X1
MECON 63
CDON 64
80 X0
ZMUTE
66
MECON_CHK 67 CD +6V
46 MEC_DSW
CDON_CHK
68 CD +3.3V
53 MEC_SELFSW
+1.5V ON/OFF
45 MEC_INSW
SWITCH
CD +1.5V
Q2,3
42 MEC_LIMIT
M +1.5V
6 DRVON
1.5V_ON
CDON_1500MV 1
43 MEC LOAD
44 MEC EJECT
A (Page 26)
CD_L
UNI_SI
UNI_SO
(Page 27)
B
UNI_CLK
BUS_ON
BU_IN
SYS_RST
LINK_OFF
C (Page 26)
A_ATT
SYSTEM CONTROLLER
IC501 (1/4)
91 EJECT_OK
95 CDMON_IN
94 CDON_IN
93 CDMUTE_IN
+1.5V REG
IC6
5 VOUT VDD 1
BU +3.3V
CE 3