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MZ-E90
6-2. BLOCK DIAGRAMS
6-2-1. MD BLOCK DIAGRAM
2
SYSTEM
CONTROL
SECTION
1
SERVO
SECTION
04
MAIN BOARD (1/3 )
78
84
85
86
87
96
99
89
4
12
24
27
5
6
7
8
10
11
13
16
32
76
92
18
53
100
125
144
146
106
33
29
28
41
42
1
44
21
31
26
25
43
24
23
4
8
9
10
11
12
17
5
6
13
7
18
19
42
33
16
48
40
35
11
29
13
41
44
19
43
17
45
25
31
5
7
LASER
AUTO POWER
CONTROL
Q501
3
4
2
19
11
20
13
12
5
18
9
10
14
15
16
17
7
8
6
1
TRACKING
COIL
FOCUS
COIL
20
22
40
Jx Jy Jx
Ix Iy
Iy
Ix
Jx
Jy
A
B
C
D
MON
Ix
a
F
b c d
MINIDISC
OPTICAL PICK-UP BLOCK
(LCX-2E)
LD
AVCC
S0
S1
AVCC
S0
LD-K
LD-A
MON
D
C
B
A
Jy
Jx
Ix
Iy
D
D-C
PD-I
PD-O
DVDD
AVCC
C
B
A
VREF
VREF
A-C
Jy
Jx
Ix
Iy
S1
RF,AMP,
FOCUS
ERROR,
TRACKING
ERROR
TPP/WPP
APC
AVCC AVCC
RF OUT
PEAK
BOTM
ABCD
FE
ADIP IN
TE
ADIP
PD-NI
OFTRK
VC
AOUT L
AOUT R
AVD1
AVD2
VDD RAM
MNT3
VDD RAM
SWDT
SCLK
XLAT
SRDT
SENS
SQSY
XINT
TST3(CS DSP)
VDI00
VDI01
VDI02
VDI03
SBUS
SCK
S MON
XRST
PEAK
/BOTM
RFI
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
EFM/ACIRC ENCODER/DECODER,
SHOCK PROOF MEMORY CONTROLLER,
16M BIT D-RAM
IC601(1/2)
PEAK
BOTM
ABCD
FE
TE
VC
MNT2
XRST
ADIP
APCREF
R CH
R CH
R IN
FOK
SDO0
L IN
AVCC
CN801
(1/4)
OFTRK
VREF MON
SSB DATA
S MON
SCK0
XLAT
XCS DSP
SSB CLK
PS S0
PD S1
XICRST
SDI0
SENSE
SQSY
XINT
RF AMP,FOCUS/TRACKING ERROR AMP
IC501
CN501
TRK+
TRK-
FCS+
FCS-
• Signal Path
: MD
(Page 25)
(Page 23)