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SAMSUNG PROPRIETARY
THIS DOCUM E NT CONTAINS C O NFIDE NTI AL
PROPRIETARY I NFOR MATION THAT I S
SAMSUNG EL E C TRONICS CO' S
PR OPER TY.
DO NOT DISCLOS E TO OR DU P LIC ATE FO R O THERS
EXCEPT AS AUTHORIZED BY SAM S U NG .
Service schematics
V_BATT
VCHG_5V
IFC300
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
R302
10
10
11
R303
11
R304
12
12
13
13
14
14
15 15
16
16
R306
17 17
R307
18
18
19 19
20
20
NC 21
NC
22
23
NC
NC 24
C326
25
NC
NC 26
NC 27
ONKEY_2
KEYOUT(0)
KEYOUT(1)
KEYOUT(2)
KEYOUT(3)
KEYIO(1)
KEYIO(2)
DIGIT301
2
KEYIO(0)
DIGIT304
2
KEYIN(2)
DIGIT307
2
KEYIN(1)
STAR
2
KEYIN(0)
ZD303
TAC301
1
2
KEYIO(2)
3
4
5 6 7
ZD310
G
EAR_ANT
ZD304
L300
C300
R300
L301
R301
L302
UART1_RD_J
UART1_TD_J
C329
END
1
2
ONKEY_1
TORCH_EN
UP
2
1
DIGIT302
DIGIT303
LEFT
SEND
1
2
1
2
1
2
1
2
1
DIGIT305
DIGIT306
INT
MENU
1
2
1
2
1
2
1
2
1
DIGIT308
DIGIT309
RIGHT
BACK
1
2
1
2
1
2
1
2
1
DIGIT300
SHARP
DOWN
1
2
1
2
1
2
1
C328
C327
C331
TAC302
1
2
KEYOUT(3)
KEYOUT(2)
KEYIO(2)
3
4
5 6 7
ZD311
EAR_SW
EAR_SW_REF
C301
EAR_MIC_P
C302
C303
EAR_MIC_N
AUX_DET
UART1_TD
R305
UART1_RD
C304
C305
JIG_ON
UART0_TD
UART0_RD
L303
R308
EAR_P
L304
VCM_OUT
L305
EAR_N
R309
V_BATT
U301
4
1
VIN
VOUT
3
2
EN
GND
R310
C311
C312
R318
ZD302
LED300
V_BATT
R311
RCV-
KEY_LED_3.3V
C323
R314
R315
R316
R317
LED301
LED302
LED303
LED304
V_BATT
VMEM_1.8V
VGPIO_2.8V
LCD300
1
2
3
4
LCD_BL(3)
5
LCD_BL(2)
6
LCD_BL(1)
7
8
9
10
11
12
13
14
15
MD(7)
16
MD(6)
17
MD(5)
18
MD(4)
19
MD(3)
20
MD(2)
21
MD(1)
22
MD(0)
23
24
OEn
25
WEn
26
LCD_RESET
27
A(20)
28
LCD_CS
29
30
31
32
MIC_BIAS
C313
R312
C315
L306
L307
L314
MIC300
TA301
C322
C317
L308
L309
L315
R313
C319
R319
RCV+
R320
RCV-
1
7
VCC
2B0
SPK+
C320
U302
2
6
1B1
GND
R321
SPK-
R322
SPK+
C324
BOTHHOLE302
BOTHHOLE301
BOTHHOLE303
C314
MIC_P
R323
MIC_N
C318
SPK300
1
1
2
2
C321
ZD308
ZD309
SPK301
ZD305
ZD306
C325
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