Block Diagram - Md Section - Sony MXD-D400 Service Manual

6-2. BLOCK DIAGRAM – MD Section –
HR901
OVER WRITE
HEAD
OPTICAL PICK-UP BLOCK
(KMS-262E)
VCC
FOCUS/TRACKING ERROR AMP
DETECTOR VC
I
1 I
J
F
2 J
C
6 C
B
5 B
C B
I J
D A
A
A
4
D
7 D
E
E 8 E
F
9 F
ILCC
LD DRIVE
11 APC
Q202, 203
LD
LASER
DIODE
PD
LASER ON
PD
SWITCH 10 PD
LD
Q201
POWER
VR
HF MODULE
MOD
HF
SWITCH
MODULE
Q701 – 704
F+
FOCUS
COIL
F-
T+
TRACKING
COIL
T-
M102
(SLED)
M101
(SPINDLE)
MD DSP
IC201
OVER WRITE
HEAD DRIVE
EFMO DIN0
115
IC181, Q181, 182
DIN
17 XT
D OUT
RF AMP,
IC101
SWDT
RF 38 70 RFIN
SCLK
XLAT
FE
34 79 FE
TE 86 TE SRDT
26
SE 28 85 SE SENS
ABCD 78 ABCD XINT
35
AUX 33 80 AUX DQSY
PEAK 37 76 PEAK SQSY
BOTM 36 77 BOTM
MNT1
ADFG 91 ADFG
32
MNT2
SWDT 16 99 DTRF
SCLK 17 98 CLRF
XLAT XLRF D0
18 97
D3
FCONT 20 94 FCONT
APC REF 12 100 APC REF
A00
A10
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC401
12 OUT3F IN3F 104 FFDR
14
XOE
10 OUT3R IN3R 15 105 FRDR XWE
XRAS
OUT1F IN1F TFDR XCAS
21 19 103
23 OUT1R IN1R 18 102 TRDR
OSC
FS256
OUT2F IN2F SFDR
27 29 108
M M
25 OUT2R IN2R 30 107 SRDR
OUT4F IN4F
6 4 109 SPRD
M M RPWR
8 OUT4R IN4R 3 110 SPFR XRST
PSB 16
COMPARATOR
IC701
24
25
26
MD MECHANISM CONTROLLER
IC12
31
6 SWDT
XIN 15
33 SCLK
7
8 50 XLATCH
XOUT 13
32 SRDT
10
XIN-T 10
11 58 SENS
11
XOUT-T
25 XINT
16
14 18 DQSY
20
13 SQSY
59
2 SHOCK
SDA 60
48
3 XBUSY
SCL 45
DRAM
IC152
EEP-WP 47
43 3
DQ2,
. .
45 24 DQ3,
. .
44 25 DQ4,
. .
DQ1
42 2
IIC DATA 30
52
.
IIC CLK 29
54
.
56 9
.
LEVELL 3
60 12
. .
LEVELR 4
59 15
A0
.
55 19 A10
. .
PDOWN 19
53 21
. .
51 8 SRST 12
.
49
.
48
.
50
OE
38 22
WE
37 4
RAS
47 5
CAS
46 23
LIMITIN 55
VCO
OUTSW 49
5 CLKA
28
IC803
36 1 XIN
PLAYSW 51
8 XOUT
X804 RECSW 53
11.2896MHz
REFELECT 61
15
PROTECT 44
12
52 DRESET LOAD IN 67
89 IOP
LOAD OUT 66
57 LD ON
WRPWR
54
56 MOD
LOAD LO 65
47 47
CODEC DOUT
E
D OUT TO MD
B
MD DOUT
F
X2
10MHz
X3
32.768kHz
EEPROM
IC195
5 SDA
SCL
6
WP
7
IIC DATA
IIC CLK
LEVEL L
LEVEL R
P DOWN
SRST
IIC DATA, IIC CLK,
MD LEVEL L, LEVEL R,
RESET P DOWN, SRST, MD RESET
G
RESET
SWITCH
Q2
OUT SW
D
S101
(LIMIT IN)
S103
(OUT)
S104
(PLAY)
S105
(REC)
S102
(REFRECT/PROTECT)
LOADING MOTOR DRIVE
IC18
5 IN1 OUT1 2
M103
M
(LOADING)
6 IN2 OUT2 10
VZ
4
REFERENCE
VOLTAGE
+3.3V
SWITCH
Q7, 8
MXD-D400
(Page 48)
(Page 46)
(Page 48)
(Page 48)
(Page 46)
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
: MD PLAY
: MD REC
: CD PLAY (DIGITAL OUT)