Samsung SGH-I907 Service Manual - Page 68

Vcc_3.0v, Hdc400, Mouse_clk, Ear_check, Main_mic_p, Oj_vcc_gnd, Mouse_txd, Mouse_ncs, Mouse_shdn,

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Page 68 highlights

Flow Chart of Troubleshooting JTAG_RXD JTAG_IF_CON_SENSE JTAG_VBUS NC 27 NC 26 NC 25 NC 24 NC 23 NC 22 NC 21 20 20 19 19 18 18 17 17 16 16 15 15 14 14 13 13 12 12 11 11 10 10 99 88 77 66 55 4 4 33 2 2 11 IFC400 RADIO_ANT L402 C470 C453 R405 R406 R407 R408 U409 1 IN 10 _EN 2 GND 9 NC 3 _FLAG 8 NC 4 IN 7 OUT 5 IN OUT 6 GND IN 11 12 R428 VUSB_5V R401 USB_DETECT R402 VCC_3.0V V_DC VEXT_5V R403 R404 DD+ IF_CON_SENSE RXD TXD_TVOUT EAR_CHECK nJACK_INT SEND_END EAR_COM CH3 4 CH4 5 CH5 6 6 CH5 5 CH4 4 CH3 3 CH2 VN 2 CH1 1 1 CH1 2 VN 3 CH2 TA404 ZD400 ZD401 C414 C415 C413 C409 C423 C426 R425 R426 EAROUT_L EAROUT_R C419 C418 EAR_MIC_N EAR_MIC_P C420 C421 MOUSE_nCS MOUSE_TXD KBR(2) KBR(1) KBR(0) MOUSE_SHDN VCC_3.0V HDC400 11 33 55 77 99 11 11 13 13 15 15 2 2 44 66 88 10 10 12 12 14 14 16 16 MOUSE_RXD MOUSE_CLK KBC(2) MOUSE_MOTION MAIN_MIC_P MAIN_MIC_N EAR_CHECK 4 CH3 6 CH5 5 CH4 ZD405 3 CH2 1 CH1 2 VN OJ_VCC_GND 10-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization

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SAMSUNG Proprietary-Contents may change without notice
Flow Chart of Troubleshooting
10-16
This Document can not be used without Samsung's authorization
9
0
4
C
6
5
H
C
2
N
V
ZD400
1
1
H
C
2
H
C
4
3
3
H
C
5
4
H
C
NC 21
22
NC
23
NC
NC 24
25
NC
NC 26
NC 27
3
3
4
4
5
5
6
6
7
7
8
8
9
9
14
14
15
15
16
16
17
17
18
18
19
19
2
2
20
20
IFC400
1
1
10
10
11
11
12
12
13
13
VUSB_5V
5
1
4
C
R404
VEXT_5V
R406
1
2
4
C
4
1
4
C
8
1
4
C
V_DC
9
1
4
C
2
N
V
ZD401
1
1
H
C
2
H
C
4
3
3
H
C
5
4
H
C
6
5
H
C
C453
VCC_3.0V
TA404
0
2
4
C
R407
R403
R428
6
7
OUT
_EN
10
_FLAG
3
GND
11
D
N
G
1
IN
4
IN
IN
5
12
N
I
NC
8
9
NC
OUT
U409
2
R425
R401
R408
3
2
4
C
C470
L402
R402
3
1
4
C
6
2
4
C
R405
R426
RADIO_ANT
IF_CON_SENSE
EAR_CHECK
JTAG_VBUS
USB_DETECT
EAR_COM
D+
D-
EAR_MIC_P
EAR_MIC_N
EAROUT_R
EAROUT_L
SEND_END
nJACK_INT
RXD
TXD_TVOUT
JTAG_RXD
JTAG_IF_CON_SENSE
VCC_3.0V
5
H
C
2
N
V
5
0
4
D
Z
1
1
H
C
2
H
C
4
3
3
H
C
5
4
H
C
6
7
7
8
8
9
9
14
15
15
16 16
2
2
3
3
4
4
5
5
6
6
HDC400
1
1
10
10
11
11
12
12
13
13
14
MOUSE_CLK
EAR_CHECK
MAIN_MIC_P
OJ_VCC_GND
MOUSE_TXD
MOUSE_nCS
MOUSE_SHDN
MOUSE_RXD
KBC(2)
MOUSE_MOTION
MAIN_MIC_N
KBR(1)
KBR(0)
KBR(2)