MZ-N420D
38
38
OPTICAL PICK-UP
BLOCK
LDA
FOCUS
COIL
TRACKING
COIL
MOTOR/COIL DRIVE
IC701
FO2
30
RO2
32
13
11
TRK+
TRK-
FCS+
FCS-
28
FI2
RF AMP
IC501
11
AVCC2
VREF10
7
ly
56
A
50
B
51
C
52
48
PEAK
50
VC
FO1
RO1
D
49
RFI
10
4
AOUT L
Signal Path
: PLAYBACK
VREF
ly
lx
jy
jx
A
B
C
D
MON
GND
APC
Q501
LDK
A-C
16
D-C
15
lx
1
jy
55
jx
54
PD-NI
12
PDO
14
53
AVCC
29
DVCC
9
RFO
40
RFI
47
BOTM
41
ABCD
42
FE
43
TE
23
ADFG
13
PD-I
8
VC
18
SMON
33
SBUS
32
SCK
26
CLK
FS256
35
RESET
REGO1
VCC
VCO2
PDS0
PDS1
M602
(SLED)
26 COM2
35 UO2
SLED N
SLED U
SLED V
SLED W
25 CPUI2
37 VO2
24 CPVI2
39 WO2
23 CPWI2
M601
(SPINDLE)
17 COM1
8 UO1
CLV N
CLV U
CLV V
CLV W
18 CPUI1
6 VO1
19 CPVI1
4 WO1
20 CPWI1
M
M603
(OVER WRITE
HEAD UP/DOWN)
HD DRV+
HD DRV-
MINI DISC
MECHANISM BLOCK
27
RI2
15
FI1
16
RI1
44
PWM2
43
UI2
42
VI2
41
WI2
45
CPUO2
46
CPVO2
47
CPWO2
55
PWM1
56
UI1
1
VI1
2
WI1
54
CPUO1
53
CPVO1
52
CPWO1
REGO1
51
VG
VG
14
VMF1
UNREG
29
VMF2
10
VMR1
33
VMR2
9
VMU1
34
VMU2
5
VMVW1
38
VMVW2
IC801(1/2)
SSB DATA
156
SSB CLK
157
XRF RST
130
PEAK
15
BOTM
16
ABCD
17
FE
18
TE
23
ADFG
28
APC REF
29
VC
19
SE
22
54
PDS0
114
PDS1
115
TFDR
31
TRDR
30
FFDR
32
FRDR
33
SFDR
35
SLD MON
121
SRDR
48
SLD V
43
SLD W
44
SLC U
45
SLC V
46
SLC W
47
SPFD
37
SPDL MON
137
SPRD
36
SPD V
38
SPD W
39
SPC U
40
SPC V
41
SPC W
42
48
DE
XRST MTR DRV
143
UNREG
5
V+1
REGO1
L IN
8
R IN
3
5
AOUT R
9
L OUT
2
R OUT
HP AMP
IC371
100
SI0
101
SO0
102
SCK0
144
XCS NV
J304
VCO1
169
RMC KEY
174
RMC DTCK
166
WK DET
162
SET KEY1
171
142
LCD STB
97
LCD RST
141
XCS LCD
REGO1
DVDD
SDO
XWK1
SET KEY1
PLAY_PAUSE_ENTER
PLAY_PAUSE_ENTER
STB
RESET
XCS
SCK
SDO0
SCK0
RF1
20
REC DRIVER
IC601
INM1
19
CLK
4
8
VIO
34
FS4
4FS
292
USB IF VDD
REGO1
9
VC
VCO1
SW
Q603
L1 1
11
L1 2
14
DW BT
22
DW TP
21
HALF LOCK SW
168
OPEN CLOSE SW
93
S801
(HALF LOCK)
S803
(OPEN/CLOSE)
PROTECT
89
S806
(PROTECT)
OSCI
1
OSCO
2
UOSCI
179
UOSCO
180
X803
22.5792MHz
X802
48MHz
HALF LOCK
33
HA
35
HB
SWITCH
Q604,605
A
B
38
OUT B
41
OUT A
RESET
Q871
REGO1
UNREG
DO
4
EEPROM
IC852
DI
3
XSK
12
2
XCS
1
146
VREC PWM
EFM
7
71
EFMO
42
VREC IN1
37
VREC IN2
10
VREC O1
15
VREC O2
UNREG
36
VG
VG
26
VC2
FI
6
205
HD CON1
RI
5
206
HD CON2
OE
3
202
MODE1
REC ON
2
203
MODE2
SW
1
204
MODE3
264
IFVDD0
IC801(2/2)
266
IFVDD1
268
IFVDD2
270
IFVDD3
272
IFVDD4
278
DAVDD
280
AVD1
282
AVD2
285
TSLVDD
293
MVDD
294
USB OSC VDD
299
FVDD0
286
DRAMVDD0
288
DRAMVDD1
254
DVDD0
256
DVDD1
258
DVDD2
260
DVDD3
262
DVDD4
301
DVDD5
302
DVDD6
284
TSMVDD
274
AVDD
REGO1
REGO1
43
58
DATA
POWER AMP
IC901
REGO3
39
VCO1
11
L1
13
L1
14
VREF
48
L903
VO1
12
L2
34
L2
35
VCIN
38
D902
VO2
36
VC2
42
VG
212
XRST
123
SLEEP
138
XCS PWR IC
XRST2
27
SLEEP
64
STRB
59
SDO0
SCK0
4FS
HALF LOCK
RMC KEY
PLAY_PAUSE_ENTER
60
SCK
63
CLK
176
UDM
175
UDP
124
FFCLR
DATA-
DATA+
VBUS
CN651
303
DRAMVDD3
304
DRAMVDD4
DTC1
19
DTC2
29
VCOUT
37
VCO2
VSTB
9
VC1
10
REGI3
40
REGI1
44
VCO1
D903
LVB
7
L904
VB
26
LG
24
L901
L902
VG
23
D901
2
XWAKE4
3
XWAKE3
4
XWAKE2
5
XWAKE1
FFCLR
1
LINE
FILTER
LF952
Q672
Q652
Q651
(1/2)
Q651
(2/2)
REGO1
UNREG
L651
Q653
1
5
DC-DC CONV
IC651
3
2
Q654
D654
D653
SYSTEM CONTROLLER
DIGITAL SIGNAL PRCESSOR
SYSTEM CONTROLLER
DIGITAL SIGNAL PRCESSOR
1
V+2
TO
SWITCH
&
LCD MODULE
XHOLD
XHOLD SW 132
: RECORD
OVER WRITE HEAD
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
1.5V
RGND
not
used
KEY_R
DTCK
RVDD
VDD
CE
VOUT
EXT
UNREG
S807
HOLD
: USB
6-1. BLOCK DIAGRAM