Sony ICD-AX412 / ICD-AX412F Service Manual ▷ View online
ICD-AX412/AX412F
29
IC941 MM3273BURE (MAIN Board (7/7))
IC942 PST8117UL (MAIN Board (7/7))
IC961 BD6041GUL (MAIN Board (7/7))
GND 2
VDD
4
VOUT
3
+
–
CURRENT
LIMIT
BIAS
VREF
CE 1
OUT 1
VDD 2
GND
4
NC
3
+
–
VREF
A2
IN1
IN2
IN3
IN4
IN2
IN3
IN4
OK
EN
GND
A3
B2
B3
B2
B3
C1
A1
B1
B1
OUT1
OUT2
OUT2
C2
C3
TIMING
GENERATOR
UVLO
VREF
OVLO
TSD
OSC
INITIAL
DELAY
GATE
DRIVER
INITIAL
DELAY
ICD-AX412/AX412F
30
IC962 TK77335AM4 (MAIN Board (7/7))
IC963 PST8137UL (MAIN Board (7/7))
VIN
VREF
Nȍ
7
8 NC
VOUT
6 NC
5 NP
2
NC 1
GND 3
VCONT 4
ON/OFF
CONTROL
THERMAL
&
OVER CURRENT
PROTECTION
VDD
VOUT
NC
Vref
3
GND 4
2
1
ICD-AX412/AX412F
31
IC907 RP114N311D-TR-FE (MAIN Board (7/7))
IC908 S-1137A31-I6T2G (MAIN Board (7/7))
2
3
GND
1
VCC
CE
4 NC
5 VOUT
VREF
CURRENT
LIMIT
6 VIN
5 VSS
4 CE
POWER OFF
CIRCUIT
OVERCURRENT
PROTECT CIRCUIT
SOFT START
CIRCUIT
REFERENCE
VOLTAGE
CIRCUIT
1
VOUT
2
VSS
3
SSC
ICD-AX412/AX412F
32
• IC Pin Function Description
MAIN BOARD (1/7) IC101 LC823425-12G-H (SYSTEM CONTROL)
Pin No.
Pin Name
I/O
Description
1
BMODE0
—
Boot mode select terminal
2
BMODE1
—
Boot mode select terminal
3
EXTFIQ/GPIO2A
I
Interrupt signal input from VBUS detect
4
VSS
—
Ground terminal
5
EXTINT00/GPIO2B
I
Interrupt signal input from Key detect
6
EXTINT01/GPIO2C
I
Interrupt signal input from Low battery detect
7
EXTINT02/GPIO2D
I
Interrupt signal input from MS/SD card detect
8
EXTINT03/GPIO2E
I
Interrupt signal input from Key (DPC) detect
9
EXTINT04/GPIO2F
O
Headphone muting signal output
10
VDD2
—
Power supply terminal (+3.1V)
11
VSS
—
Ground terminal
12
SDCD1/GPIO20
I
SD card detect signal input
13
SDWP1/INS/GPIO21
O
SD card power control signal output
14
SDCMD1/BS/GPIO23
O
SD CMD/MS BS signal output
15
SDAT10/DATA0/
GPIO24
I/O
SD/MS data bit0 input/output
16
SDAT11/DATA1/
GPIO25
I/O
SD/MS data bit1 input/output
17
VDDSD1
—
Power supply terminal (+3.1V)
18
SDAT12/DATA2/
GPIO26
I/O
SD/MS data bit2 input/output
19
SDAT13/DATA3/
GPIO27
I/O
SD/MS data bit3 input/output
20
SDCLK1/SCLK/
GPIO22
O
SD/MS clock output
21
VSS
—
Ground terminal
22
VDD1
—
Power supply terminal (+1V)
23
SDCLK0
O
FLASH Memory clock output
24
SDCMD0
O
FLASH Memory command data output
25
SDAT00
I/O
FLASH Memory data bit0 input/output
26
SDAT01
I/O
FLASH Memory data bit1 input/output
27
VDDSD0
—
Power supply terminal (+3.1V)
28
SDAT02
I/O
FLASH Memory data bit2 input/output
29
SDAT03
I/O
FLASH Memory data bit3 input/output
30
SDCD0/GPIO29
—
Not used. (Open)
31
SDWP0/GPIO28
O
POWER control signal output
32
VSS
—
Ground terminal
33
AVDDUSBPHY1
—
Power supply terminal (+1V)
34
AVSSUSBPHY
—
Ground terminal
35
AVSSUSBPHY
—
Ground terminal
36
USBDDM
I/O
USB port serial data input/output
37
USBDDP
I/O
USB port serial data input/output
38
AVDDUSBPHY2
—
Power supply terminal (+3.1V)
39
AVSSUSBPHY
—
Ground terminal
40
AVSSUSBPHY
—
Ground terminal
41
USBDEXT12
—
USB-PHY reference resister terminal
42
AVDDUSBPHY2
—
Power supply terminal (+3.1V)
43
AVDDUSBPHY1
—
Power supply terminal (+1V)
44
AVSSUSBPHY
—
Ground terminal
45
VDDXT1
—
Power supply terminal (+1V)
46
XOUT1
O
Crystal output for main clock (48MHz)
47
VSSXT1
—
Ground terminal
48
XIN1
I
Crystal input for main clock (48MHz)
49
AVDDPLL1
—
Power supply terminal (+1V)
50
VCNT1
I
PLL1 VCO control signal input
51
AVSSPLL1
—
Ground terminal
52
VDD2
—
Power supply terminal (+3.1V)
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