Read Sony ICD-AX412 / ICD-AX412F Service Manual online
ICD-AX412/AX412F
ICD-AX412/AX412F
14
14
3-2. BLOCK DIAGRAM – POWER/DISPLAY Section –
DRY BATTERY
SIZE"AAA"
(IEC DESIGNATION LR03)
2PCS,3V
94
98
93
LCD101
LIQUID
CRYSTAL
DISPLAY
PANEL
D101,102
D103
(OPERATION)
VDD_REGIO31
8
53
3
122
103
105
121
104
LED
CONTROL
Q101
RESET
VDD_REGIO31
IC102
SDI1/GPIO0E/EXTINT1E
SDO1/GPIO0F/EXTINT1F
SDO1/GPIO0F/EXTINT1F
LCD_XCS
LCD_A0
SPIO_SCLK
VDD_REGANA29
VDD_REGIO31
DPC
CHG_AMP_AD
VBUS_XDET
AN4
SYSTEM CONTROL
IC101 (2/2)
S401
DPC
(SPEED CTRL)
SCK0/GPIO1D
SDO0/SPIO1F
SDO0/SPIO1F
SPIO_MOSI
CPU_XRST
CHG_EN_CLK
RXD1/GPIO05/EXTINT15
TXD1/GPIO04/EXTINT14
EXTINT03/GPIO2E
59 NTRST
61 NRES
73 BACKUPB
EXTFIQ/GPIO2A
TCLKA/GPIO00/MPMCADDR11/EXTINT10
TCLKB/GPIO01/MPMCADDR12/EXTINT11 54
AN2
97
TIOCB1/GPIO03/DMDIN/EXTINT13
13
SDWP1/INS/GPIO21
TEMP_AD
AN5
TXD2/GPIO0B/EXTINT1B
TIOCA1/GPIO0A/EXTINT1A
KEY MATRIX
S403-S416
KEY WAKEUP
SWITCH
Q401
KEY0_AD
AN0
KEY1_AD
KEY WAKUP
AN1
EXTINT00/GPIO2B
OFF
ON
6
NR
S402
NOISE CUT
EXTINT01/GPIO2C
OFF
ON
72
RTCINT
71
SDWP0/GPIO28
VDET
4
2
CHARGE CONTROL
IC911
OUT
VDD
+4.0V REG.
IC962
90
8
7
BATTERY CHARGE
CONTROL
IC501
VDD VBUS REG
IC961
VDD_CHG
VIN
SW
16 OPOUT
CHG_AMP_SEL
TIOCA0/GPIO09/EXTINT19
13 CONT
D902
Q907
Q903
D501,502
RECT
VBUS
Q962
VDD_REGRTC
VDD_REGANA29
VDD_REGADA18
VDD_REGMSSD
VDD_REGCORE
VDD_REGIO31
14 EN2
4 EN1
11
FB
12
SENS
3
PIN1
DDC1 +3.3V REG
IC902
3
BAT
REGRTC+1.0V REG
IC903
REGANA+2.9V REG
IC905
VOUT
8
4
FB
EN
10
VDD_REGADA31
A1,B1
IN1-4
OUT1,
OUT2
OUT2
A2,A3,
B2,B3
B2,B3
101
S941
Q941
D942
Q942
Q943
PWR_ON
KEY_POFF_XDET
KEY_XHOLD
SD_PWR_CTL
AU_PWR_CTL
BATT_AD
BATTM_AD
ZLOAD_CTL
POW ON/OFF
HOLD ON
HOLD OFF
RESET
VDD_REGIOCORE
IC103
5
126
125
VDD_SP
TH501
MAIN
SECTION
A
1
2
SWITCH
IC963
VOUT
VDD
1
2
DETECT
IC901
VOUT
VIN
2
LX
POWER
SWITCH
Q944,945
D943
D944
D964
D901
VB2
X102
48MHz
48
46
XIN1
XOUT1
X101
32.768kHz
68
70
XIN32K
SCK1/GPIO0D/EXTINT1D
XOUT32K
Z LOAD
CONTROL
Q908
BATT_M
VDD_BATT
4
2
VOLTAGE DETECT
IC104
OUT
RTC_VDET
VIN
102
124
AN3 123
31
EXTINT04/GPIO2F
D941
HP_MUTE
9
SWITCH
Q963
SWITCH
Q905,906
+3.1V REG
IC941
BATTERY
DETECT
IC942
BATTERY
SWITCH
Q901,902
89
REGADA+1.8V REG
IC910
REGMSSD+3.1V REG
IC908
REGCORE+1.0V REG
IC904
REGIO31+3.1V REG
IC907
(Page 13)
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