Bd Section - Sony MDS-JE700 - Mini Disc Player Service Manual

6-2. BLOCK DIAGRAMS
— BD SECTION —
HR901
• Signal path
OVER WRITE
HEAD
: PB
: REC
: PB (Digital out)
: REC (Digital in)
OPTICAL PICK-UP BLOCK
(KMS-260A/J1N)
1
2
DETECTOR
F
I C B J
D A
4
E
5
6
7
8
9
VC
VC 3
15
D101
14
LASER ON
SW
PD 10
Q101
ILCC APC
LD
Q162,163
HF MODULE
HF
SW
MODULE
IC103,Q102-104
TRAKING SLED/SPINDLE MOTOR DRIVE
COIL
FOCUS/TRACKING COIL DRIVE
FOCUS
TRK–
COIL 10
TRK+ DRIVER
12
FSC+
21
FSC– DRIVER
23
SLED+
M902
M 27
SLED– DRIVER
SLED MOTOR
25
SPDL+
M901 M
6
DRIVER
SPINDLE MOTOR SPDL–
8
09
OVER WRITE HEAD DRIVE
IC181
1
18
11
3
HEAD 14
DRIVE
18 2
Q181,182 15
9
17
RF AMP
IC101
48 47 46 40
RF
RF AGC & EQ 38
I
J RF AMP BPF P-P AUX
33
BOTM
PEAK
36
&
PEAK
37
BOTTOM
A ABCD
ABCD
35
AMP
B
IV AMP
C
D FOCUS
FE
ERROR
34
E
AMP
F IV AMP VC
31 VC
AT
BPF 29
AMP
E-F
ADFM
BALANCE
ADIN
30
VCC
VC ADFG
CVB 32
TEMPR
TE
TRACKING
26
ERROR
SE
28
AMP
TEMPI TEMP
AMP
CSLED
27 VC
PD
SWDT
SERIAL
16
SCLK
17
VICONV
PARALLEL
XLAT
DECODER 18
FOCNT
20
11 12 22 23 25
IC122
1
4
2
IC152
TFDR
85
TRDR
86
FRDR
89
FFDR
88
SFDR
92
SRDR
91
SPFD
94
SPRD
93
XRST
PSB 16
— 37 —
DIGITAL SERVO SIGNAL PROCESSOR, DIGITAL SIGNAL PROCESSOR
EFM/ACIRC ENCODER/DECODER, SHOCK-PROOF MEMORY CONTROLLER,
ATRAC ENCODER/DECODER, 2M-BIT DRAM
IC121
Q180
15
EFMO
100
EFM,
SHOCK
ACIRC,
PCO RESISTANT
58
ENCODER/
MEMORY
FILI
59
DECODER CONTROLLER
FILO PLL
60
CLTV
61
RFI
55
AUX1
66
BOTM
63
PEAK
62
ANALOG
ABCD
MUX
64
EE
65
VC
VC 67
TE
74 A/D
SE
CONVERTER
73
ADIP
ADFG APC
78 DEMODULATOR/
DECODER
SPINDLE PWM
SERVO GENERATOR
DTRF
82
CKRF
81
XLRF
80
FOCNT
79
93 94 13 83 88 89 86
14
DIN
21
ADDT
23
ATRAC DIGITAL
ENCODER/
AUDIO
DECODER I/F
DADT
24
DOUT
22
SAMPLING
RATE
CONVERTER
SQSY
SUBCODE 11
DQSY
PROCESSOR
12
MNT3
4
MNT2
3
MONITOR
MNT1
2
MNT0
CONTROL
1
SENS
9
SRDT
8
SCLK
CPU
6
I/F
SERVO SWDT
5
DSP
XLAT
7
3
AUTO
SEQUENCER
XBCK
26
LRCK
25
CLOCK
GENERATOR
OSCI
16 1
BUFFER
IC123
85 92 91 10
5
SDA
EEP ROM
IC171
SCL 6
DETECT SW
S681 - 683,
S685 - 688
M903
M
LOADING MOTOR
— 38 —
MDS-JE700
SCTX
XINT
DIN
ADDT
DADT
DOUT
SQSY
DQSY
MNT3
MNT2
MNT1
MNT0
SENS
SRDT
SCLK
SWDT
MAIN
XLAT
SECTION
BCK
LRCK
5
512FS
LDON
WRPWR
MOD
SDA
SCL
LIMIT
REFLECT
PROTECT
CHUCK IN
PACK OUT
PB P
REC P
LOAD-IN
LOAD-OUT
XRST