Block Diagram -Md Section - Sony MDX-C800REC Service Manual

MDX-C800REC
3-2. BLOCK DIAGRAM — MD SECTION —
OPTICAL PICK-UP
KMS-263A
F
C B
I J
A D
E
POWER
LD
CONTRIL
PD
FOCUS
TRACKING
MOD
DRIVE
IC442
Q445-447
• Signal path
:MD PB
: MD REC
04
RF AMP
IC440
RF
9 F 38
6 C PEAK 37
B
5 BOTM 36
35
ABCD
J
2
PEAK
HOLD
D
7
Q400
A
4
8
E
1 I
FE 34
33
AUX
32
ADFG
LD
11
CONT APC SE 28
Q443 Q442
TE 26
FOCNT 20
XLAT 18
17
SCLK
LD
SWDT 16
CONT 10
PD
APCREF 12
Q444
PICK-UP DRIVE
IC520
21 1F 1F 19
23 1R 1R 18
3F
12 3F 14
10 3R 3R 15
4F
4
6 4F
M503
3
4R
(SPINDLE)
8 4R
29
2F
27 2F
M501
2R 30
(SLED)
2R
PSB 16
25
ON/OFF REC
OVER-WRITE
DRIVE DRIVE
HEAD
Q510,511 IC510
REC
CONTROL
Q512
SOFT
START
RF 3V
Q440,441
RESET
B/U 5V
IC563
DSSP & DSP DAC/ADC
IC400 IC300
SDTI
D/A
RF
55 DADT 24 14
CONV.
62 PEAK LRCK 25 12 LRCK
I/O
63 13
BOTM XBCK 26 SCLK
I/F
64 ADDT 23 15 A/D
ABCD
SDTO CONV.
75 AUX2
SMUTE
MCKI DEMO
19
65
FE
66 PULSE
AUX
OSC
16
OSCI SHAPE
78
ADFG IC301
IC403
73 SE
X300
74 TE 22.5792MHz
J800
DIN 21
79
FOCONT (DIGITAL IN)
80 XLRF
81
CKRF
82
DTRF
83 APCREF
DRAM
IC401
A00-A11
FFDR
88
D0-D3
89 FRDR D0-D3
X560
86 TFDR 3.68MHz
85 TRDR
EEPROM
93 SPRD 45 4
XWE WE
IC402
5
XRAS 44 RAS
94 SPFD
XOE 41 20 OE
SCL 6
XCAS 42 21 CAS
DAL 5
92 SFDR
SRDR
91
XINT 14
10
XRST
DQSY 12
11
SQSY
3V
SENS 9 TO
5V
8
SRDT
(SLOC)
EFMO 4
100 MNT3
IC561
(XBUSY)
MNT2 3
IC562
(SHCK)
2
MNT1
(SFOK)
MNT0 1
XLAT
7
15 TX SCLK 6
SWDT
13 SRECP 5
LOADING MOTOT DRIVE
M502
IC521
(LOADING)
1 OUT1 FIN 4
SERVO 3V
7 OUT2 RIN 5
30 30
26 DAL
1
27 R-CH
TUNER
SECTION
4 ADL
(Page 31)
2 R-CH
16
PD
24
17 SYSTEM CONTROL
IC700(1/3)
106 SMUTE PWM 65
Q300
PD
103
SHIFT
75
SHIFT CONTROL
Q826
104
SERVO ON
67
MD BOOT
MD CONTROL
IC560
65
XDAC RST
FLASH W 11
92 XO
A-ATT 80
93 XI
SERVO
114
ON
DC/DC CONV.CONT.
IC801
RI
2
15
CKO
OUT2 10
POWER
16 SIO
CONT 9 VCC
BATT
Q825
IN B 14
75 CC XINT
OUT1 7
SOFT
81 DQSY
B/U 5V START 5V
78
SQSY
Q561,562
INA 3
120 SENS
MD/REC ON
100
20 SRDT MDM
5
ON
115 MNT3
116 MNT2
POWER
117 MNT1 BATT CONT MD12V
Q831,832
MNT0
118 3
FOPEN 31
RXD/DSPSI 12 RXD
DISPLAY
13 TXD
TXD/DSPSO
SECTION
113 MD LAT
(Page 32)
22 SCLK
SI 25 UNISI
21 SWDT
SO 26 UNISO 4
CKI 27 UNICK
2 LDON
DISPLAY
HS TX 86 SYSRES
28 MOD
BU IN 77 BUIN SECTION
112 MD RST
76 BUS ON
BUS ON (Page 32)
1 SCTX
110
WRPWR IC564
SW550-555
4
EJECT
LIMIT IN 14
3 LOAD
PROTECT 104
REFLECT 105
DISC IN 1
101 RF ON
PACK IN 106
102
REC P
97 RAM BU
PLAY P 103
2
MD ATT
TUNER
SERVO ON
SECTION
(Page 31)
ON/OFF 3V
SERVO 3V
DRIVE REG
Q830 IC802
SERVO 5V
ON/OFF POWER
DRIVE CONT REC 5V
Q827 Q828,829