C903
1228-1147 rev. 1
MEASUREMENT POINTS
Main Flex Assy FPC
ME
A
S
U
REMEN
T
P
O
IN
T
S
AGPS_CLK
AGPS_SYNC
AGPSRESn
TX_ADSTR
AGPS_PWRON
RTCCLK
VDDE18
UART3_RTS_AGPS_CTS
UART3_CTS_AGPS_RTS
UART3_TX_AGPS_RX
UART3_RX_AGPS_TX
VBATI
BEARP
BEARN
AGPS_LDO_EN
B5
X4600
B11
B1
B2
A11
A3
A5
B8
B9
B6
B7
A1
A7
A10
B3
B4
A8
A6
B10
A9
A4
A2
Z1
Z2
Z3
1200-7176
R State = 1
Z4
X4600
B16
A10
X4203
A15
A14
A9
A6
A7
B1
A12
A13
B2
A38
A37
A17
A16
A8
A11
A31
A41
A42
A2
A3
A32
A33
A27
A28
A29
A30
A40
A44
A45
X4203
A1
Z1
Z2
Z3
R State = 1C
1212-6584
Z4
A39
A34
A35
A36
T01_Camera_opto
B41
B17
B18
B36
1
R State = 1A
1222-2537
2
X4201
VDDE18
VBATI
T02_Display_Second
90 pin Main Board
B2B Connector
22 - Pin AGPS
B2B Connector
Earspeaker
VCAM28
VCAM18
QCIFRESETn
CIF_STANDBY
CAMSYSCLK
I2CCLK2
I2CDAT2
VOPTO30
CAM_HSYNC
CAM_VSYNC
CAM_PCLK
CAM_D7_C
CAM_D6_C
CAM_D5_C
CAM_D4_C
CAM_D3_C
CAM_D2_C
CAM_D1_C
CAM_D0_C
OPTOSENSE
1207-2700
B2
R State = 1B
X4601
B1
VCAM28
VCAM18
5
16
X4602
7
8
1
9
10
3
4
2
11
20
12
15
13
19
14
18
6
AGND
17
DGND
Z1
Z2
Z3
Z4
Z5
Z6
Z7
<NM>
1204-5521
X4602
Z8
R State = 2A
VCAM28
VCAM18
1000-7567
2
3
4
5
6
1
N8304
TPS852
TPS852
VCC
GND
GND
GND
GND
OUT
47pF
C8336
1000-0067
<NM>
180Kohms
1000-4060
R8310
100nF
1000-0048
C8335
X4203
A18
B14
B9
B13
B8
B11
B12
B10
B3
A20
B4
B7
B5
B15
B6
A19
A4
X4203
1212-6584
A5
R State = 1C
90 pin Main Board
B2B Connector
50 pin Display Keypad
B2B Connector
20 pin VT Camera Flex
B2B Connector
Opto Sensor
VDIG
VDIG
VDDE18
LCD_BL_A
LCD_BL_A
LCD_BL1_K
LCD_BL1_K
LCD_BL2_K
LCD_BL2_K
LCD_RESET
LCD_RESET
LCD_FMARK
LCD_FMARK
LCD_WR
LCD_WR
LCD_RS (Data Ctrl)
LCD_RS (Data Ctrl)
LCD_CSn
LCD_CSn
LCD_RD
LCD_RD
LCD_D0
LCD_D0
LCD_D1
LCD_D1
LCD_D2
LCD_D2
LCD_D3
LCD_D3
LCD_D4
LCD_D4
LCD_D5
LCD_D5
LCD_D6
LCD_D6
LCD_D7
LCD_D7
LED_WHITE
LED_WHITE
LED_BLUE1
LED_BLUE1
KEYIN0
KEYIN0
KEYIN1
KEYIN1
KEYIN2
KEYIN2
KEYIN3
KEYIN3
KEYIN4
KEYIN4
KEYIN5
KEYIN5
KEYOUT1
KEYOUT1
KEYOUT4
KEYOUT4
CAM_LDO_EN
CAM_LDO_EN
LED_BLUE2
LED_BLUE2
ONSWAn
ONSWAn
VBATI
LED_Blue_Common
LED_Blue_Common
A19
A12
A11
A10
A4
A5
A6
A2
B21
B11
A25
B7
B22
B25
B4
B6
B8
B10
B24
B23
A17
B13
B5
B20
A23
A16
A20
X4601
A22
A21
A15
A7
A9
A18
A8
A14
A13
B17
B16
B15
R State = 1B
A1
A3
B12
B19
B18
A24
Z1
Z2
Z3
X4601
Z4
1207-2700
B9
B14
1212-6584
A43
X4203
R State = 1C
B42
X4203
B44
B43
B32
B23
B26
B34
B33
B25
B31
B30
B29
B28
B27
B21
B22
B24
B45
A23
B37
B40
A21
B19
A24
A25
B38
A22
B35
B20
A26
VBATI
VDDE18
B39
B3
90 pin Main board
B2B Connector
50-pin Display keypad
B2B Connector
SEMC Troubleshooting Manual
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