18
18
MZ-E300
5-2. BLOCK DIAGRAMS
• Signal path.
F
: Analog
J
: Digital
12
2 RFVC MON
HFL
5
2
CLK
INM2
INM1
RF2
RF1
VRMC
XWK3
VSTB
XWK1
XWK4
VD
XRST
10
44
VLO
19
VG
18
LG
9
VL
11
VL
16
12
L2
L2
50
VB
28
L1
32
L1
33
VC OUT
7
26
27
22
23
56
4
6
XWK2
3
SLEEP
55
FFCLR
54
46
VC
36
VC
34
VC2
45
21
1
20
13
4
24
23
BEEP
STB
MUTE
BEEP OUT A
BEEP OUT B
OUT B
RCH
RCH
IN B
+B
VCC
VREF IN
UNREG
VIF
REFERENCE
VOLTAGE
SWITCHING
Q301
22
2
i
J301
RCH
LCH
OFF
ON
S809
HOLD
S805
VOLUME
–
S804
VOLUME
-
S808
(OPEN/CLOSE)
VL
DVDD
35
VCO
VC
42
VIF
VIF
41
VA
AVDD
VG
UNREG
VLON
1
HEADPHONE AMP
IC301
POWER SUPPLY
IC901
+
17
18
15
S803
.
S801
x
S802
>N
D901
D902
D903
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
1PC, 1.5V
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO SIGNAL PROCESSOR,
ATRAC ENCODER/DECODER,
8M BIT D-RAM, D/A CONVERTER
IC601
MAIN BOARD
9
17
18
19
21
20
94
37
56
57
87
3
15
63
33
29
28
41
42
1
44
21
31
26
43
24
23
4
8
9
10
11
12
14
5
6
13
7
18
19
LASER
AUTO POWER
CONTROL
Q501
3
4
2
19
20
13
12
5
18
9
10
14
15
16
17
7
8
6
1
TRACKING
COIL
FOCUS
COIL
20
Jx Jy Jx
Ix Iy
Iy
Ix
Jx
Jy
A
B
C
D
PD
Ix
a
F
b c d
MINIDISC
OPTICAL PICK-UP BLOCK
(LCX-4E)
LD
AVCC
S1
AVCC
LD-K
LD-A
MON
D
C
B
A
Jy
Jx
Ix
Iy
D
D-C
PD-I
PD-O
C
B
A
VREF
VREF
A-C
Jy
Jx
Ix
Iy
S1
RF AMP,
FOCUS
ERROR,
TRACKING
ERROR
TPP/WPP
APC
SERIAL
I/F
AVCC
22 DVDD
VIF
RF OUT
PEAK
BOTM
ABCD
FE
ADIP IN
TE
ADIP
PD-NI
OFTRK
VC
OUT L
OUT R
VCVDD
VDD2
VDD1
VDD1
VDD2
VDD2
VDD2
VDD1
SBUS
SCK
S MON
XRST
PEAK
/BOTM
EFMIN
PEAK
BOTTOM
ABCD
FE
TE
ADIPWO
LDREF
VA
VD
RF AMP,FOCUS/TRACKING ERROR AMP
IC501
CN501
TRK+
TRK-
FCS+
FCS-
33
51
49
42
41
32
24
25
52
53
38
7
19
18
16
17
20
15
12
29
31
48
45
46
49
44
UNREG
27
1
26
HI-BRIDGE
CONTROL
HI-BRIDGE
CONTROL
HI-BRIDGE
CONTROL
PRE
DRIVER
HI-BRIDGE
CONTROL
3 PHASE
CONTROL
PRE
DRIVER
PRE
DRIVER
PRE
DRIVER
PRE
DRIVER
40
39
37
56
55
2
3
4
5
6
FOCUS/TRACKING COIL DRIVE,
SPINDLES/SLED MOTOR DRIVE
IC551
TRPWMF
TRPWMR
FOPWMR
FOPWMF
SLED1+
SLED1-
SLED2+
SLED2-
CLVU
CLVV
CLVW
MINIDISC
MECHANISM BLOCK
M902
(SLED)
M901
(SPINDLE)
5
7
6
8
1
2
3
4
CN551
35
10
14
54
51
52
53
BIAS
8
S-MONITOR
25
22 VC
SI0
SCK0
S00
XCS NV
14
PD S1
NV XCS
S102 DI
S102 CLK
S102 DO
XADJUST
S BUS CLK
S BUS DATA
MUTE
HP STB
BEEP
4
SET KEY
HOLD SW
3
RMC KEY
VC VCOM
VL VCOM
59
PWR CLK
PWR SLEEP
PWR FFCLR
9
XRST
10
AVDD
UNREG
PWR VLON
45
46
44
36
CLV U CON
CLV V CON
CLV W CON
CLV VCON
UNREG MON 1
5
OPEN CLS SW
SYSTEM CONTROL
IC801
BP801
(TEST)
43
42
39
50
37
48
47
17
16
SLD1MON
SLD2MON
XIN
XOUT
SLED 1R CON
SLED 1F CON
SLD VCON
SLED 2F CON
SLED 2R CON
CLV U MON
CLV V MON
CLV W MON
X801
16.9344MHz
EEPROM
IC802
4
DO
3
DI
2
SK
1
XCS
32
31
33
52
54
56
55
34
35
49
8
30
VL MON
PWR CLKSEL
27
28
29
58
38
15
18
19
51
89
59
41
13
55
AVDD
VC
3
2 VOUT VIN
REGULATOR
IC602
S807
DIGITAL
MEGABASS/
AVLS
S806
PLAY MODE
/DISPLAY
10 RESET B
DSP WRQB
XCLK
DSP INTB
DSP SMON3
20
23
24
25
DSP CE
26
DSP VP
57
WRQB
XIN
INTB
SMON3
60
92
93
70
CE 84
VP 75
3 STATE BUFFER
IC803
Q801
86
88
DI
DO
2
4
1
VL
CLK SEL
52
11
S0
S0
36
11
28
RF SMON
6
60
72
73
76
SEG0
SEG11
COM0
COM3
LIQUID
CRYSTAL
DISPLAY
