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MZ-N505
3434
6-3. BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
7
4
56
52
54
55
1
2
3
5
116
211
64
89
88
85
113
114
115
10
49
24
25
39
44
38
42
40
41
35
22
23
26
46
47
50
28
32
34
11
14
10
15
22
16
19
20
51
54
55
21
8
9
26
49
47
46
45
43
44
56
50
48
33
36
45
18
19
16
12
11
9
27
53
+–
30
31
104
29
107
90
91
112
66
186
82
109
110
39
67
68
102
83
146
77
VB
HEADPHONE AMP (IC302),
MOTOR/COIL DRIVER (IC551)
B+
POWER CONTROL
IC901
SWITCHING
REGURATOR
SYSTEM
CONTROL
BANDGAP
REFERENCE
SERIES
PASS
REGULATOR
REGURATOR
STEP-UP
DC/DC
CONVERTER
STEP-UP
PRE DRIVER
&
PWM
D902
D903
L902
L905
VG
MOTOR/COIL
DRIVER (IC551)
B+
VL
VL
VG
LG
VC2
VC
VC
VOUT
L1
L1
VB
L2
L2
RF2
VRMC
XWK3
CLK
CLK SEL
FFCLR
SLEEP
VLON
XWK1
XWK2
XWK4
VAIFON
VLO
VREF
DTC2
DTC1
VDFB
VIFFB
VIF
VAFB
VA
VCO
INM2
INM1
RF2
RF1
XRST
CRST
DTC1
VD
D904
L904
SYSTEM CONTROLLER,
DIGITAL SIGNAL
PROCESSOR,
16M BIT D-RAM
IC801 (3/3)
RMC KEY
CLK
SDO0, SCK0
VL
RF AMP (501)
LASER APC CIRCUIT
B+
VD
SYSTEM CONTROLLER (IC801)
B+
VIF
A/D CONVERTER (IC301),
SYSTEM CONTROLLER (IC801),
EEPROM (IC804)
B+
VA
A/D CONVERTER (IC301),
SYSTEM CONTROLLER (IC801)
B+
VC
RF AMP (IC501),
MOTOR/COIL DRIVER (IC551),
REMOTE CONTROL CIRCUIT
B+
RMC KEY
FS4
CLK SEL
FFCLR
SLEEP
VLON
WK DET
REC KEY
HALF LOCK SW
OPEN
S805
VIF B+
VB B+
XCS LCD
LCD STB
LCD RST
F
D
E
SDO0
SCK0
SD0
SCK
RST
STB
CS
REC
PAUSE
SE1 KEY 1
SE1 KEY 2
DVDD
HOLD
XWK1
VIF B+
SWITCH & LCD MUDULE
SL801
(TEST)
S803
PROTECT
DETECT
S806
OPEN/CLOSE
DETECT
OPEN CLOSE SW
PROTECT
XTEST
CHG MON
CHG GAIN
CHG
HIDC MON
GND SW
VB MON
PAUSE KEY
SET KEY 1
SET KEY 2
XHOLD SW
VB B+
VL PWM
VC PWM
XRST
VREC PWM
RESET
SWITCH
Q801
NOISE
FILTER
NOISE
FILTER
NOISE
FILTER
L602
VRECO
OVER WRITE HEAD DRIVE
(IC601) B+
SWITCH
SWITCHING
REGULATOR
RESET SIGNAL
GENERATOR
SWITCHING
REGULATOR
CHARGE
CONTROL
CHARGE
MONITOR
POWER
CONTROL
IC601 (2/2)
STEP-UP DOWN
PRE DRIVER
&
PWM
STEP-UP
PRE DRIVER
&
PWM
BATTERY
CHARGER
&
REGULATOR
SYSTEM
CONTROL
(2/2)
VRECO1
VRECO2
VREC
INM1
RF1
CHGMON
GAIN
CHG
L1 1
L1 2
DW BT
DW TP
VIO
VC2
VC
RF2
INM2
INP2
RS
CHG SW
VB
BATM
DREG
DCIN
VIF
B+
VC B+
VIF B+
L601
L901
D901
D603
B+ SWITCH
Q603
CHARGE
CONTROL
Q602 (2/2)
CHARGE
CONTROL
Q602 (1/2)
LINE
FILTER
T601
CHARGE
RECHARGEABLE
BATTERY
NC-WMAA
1PC. 1.2V
OR
DRY BATTERY
SIZE "AA"
(IEC DESIGNATION LR6)
1PC. 1.5V
–
+
DC IN 3V
J601
GROUND
LINE
SWITCHING
Q601
TH601
REGULATOR
SWITCH
36
VG
VG B+
(Page 33)
(Page 32)
(Page 33)
131SUSPEND
D804
6
B+ SWITCH
Q903, 904
SWITCHING
Q901, 902
VOLTAGE
DETECTOR
IC902
VB
VC
VSTB
VREC
OVER WRITE HEAD DRIVE
CIRCUIT B+
132USBIFVDD
111VBUS DET
SWITCHING
Q706
DC/DC CONVERTER
D703, IC702, Q704
VOLTAGE
DETECT
Q703
B+ SWITCH
Q701
VB B+ VA B+
USB
ON/OFF SWITCH
Q705
D701
L701
CN701 (2/2)
(USB CONNECTOR)
1
5
VBUS
GND
WAKE UP SWITCH
Q608
VOLTAGE
DETECTER
IC604