C903
1228-1147 rev. 1
MEASUREMENT POINTS
Navigation Keypad FPC
ME
A
S
U
REMEN
T
P
O
IN
T
S
ONSWAn
VBATI
LED_Blue_Common
VBATI
VBATI
LED_White
LED_Blue_1
LED_Blue_2
VBATI
KEYIN1
KEYIN2
KEYIN3
KEYOUT1
KEYIN5
KEYOUT4
VBATI
KEYIN4
KEYIN0
KEYPAD
1
2
Rock
Down
S8406
KEYPAD
2
Rock
Left
1
S8407
KEYPAD
2
1
Rock
Up
S8408
KEYPAD
Rock
Push
1
2
S8409
KEYPAD
Rock
Right
1
2
S8410
KEYPAD
1
2
GRN
S8401
KEYPAD
Soft
Right
2
1
S8411
X3500
B23
B5
B10
B8
B6
B4
B25
B22
A25
R State = 1
1207-2703
B7
B24
X3500
KEYPAD
S8402
1
2
RED
X3500
1207-2703
B9
KEYPAD
S8400
1
2
CLR
KEYPAD
Activity
Menu
2
1
S8403
KEYPAD
S8404
1
2
Soft
Left
B11
5V
V8408
<NM>
1201-6876
21
C
A
5V
V8409
1201-6876
21
C
A
5V
V8418
1
2
1201-6876
<NM>
C
A
5V
V8419
1
2
1201-6876
C
A
22ohms
R8400
1000-4034
22ohms
R8401
22ohms
R8402
22ohms
R8403
22ohms
1000-4034
R8411
5V
1201-6876
21
V8428
C
A
5V
<NM>
1201-6876
21
V8429
C
A
22ohms
R8421
1201-9197
A
C
V8431
R State = 1
V8440
C
1201-9197
A
R State = 1
V8441
A
C
V8420
A
C
R State = 1
1204-6085
V8421
CA
V8422
CA
V8423
CA
22ohms
R8404
22ohms
R8405
22ohms
R8406
V8424
A
C
V8425
A
C
V8426
A
C
22ohms
R8422
V8442
CA
22ohms
R8414
A
C
V8434
22ohms
R8423
V8443
A
C
V8438
1
2
1201-6876
5V
C
A
V8439
1
2
1201-6876
<NM>
5V
C
A
R8430
1000-4034
22ohms
R State = 1
V8450
CA
1201-9197
R8407
22ohms
V8427
CA
22ohms
R8420
TP3507
TP3508
TP3509
TP3510
VBATI
TP3505
0ohms
R8530
1000-0179
0ohms
R8531
0ohms
R8532
0ohms
R8533
0ohms
R8534
Shortcut
4
7
#
Cam
Snap
*
Side Fire
*** BLUE Common ***
Side Fire
*** BLUE 2 ***
Clear Key
*** W
H
ITE ***
Side Fire
*** BLUE 1 ***
Long Press for On/Off
50 Pin B2B Connector
RED
Game
A
Game
B
CAM
AF
KEYOUT0
KEYOUT1
KEYOUT2
KEYOUT3
KEYOUT4
KEYIN5
KEYIN4
KEYIN3
KEYIN2
KEYIN1
KEYIN0
50 Pin B2B Connector
3
6
1
9
5
0
2
B9
KEYOUT0
B11
KEYOUT2
B12
KEYOUT3
8
VOL
DOWN
OPER
Upper Keypad Matrix
VDIG
VBATI
CAM_LDO_EN_D
VCAM28
VCAM18
LCD_RESET
LCD_DAT7
LCD_FMARK
LCD_RD
LCD_BL_A
LCD_BL1_K
LCD_BL2_K
LCD_DAT0
LCD_DAT1
LCD_DAT2
LCD_DAT3
LCD_DAT4
LCD_DAT5
LCD_DAT6
LCD_WR
LCD_RS
LCD_CSn
VDDE18
VDDE18
VBATI
VDIG
<NM>
C8203
1000-0051
1uF
<NM>
C8201
1000-0039
4.7uF
<NM>
C8202
1000-0059
2.2uF
C8501
1000-0048
100nF
C8500
1000-0048
100nF
X3500
A16
B16
B18
B17
B20
R State = 1
A23
A15
A14
A13
A12
A11
A10
A4
A5
A6
A7
A9
A19
A18
A8
A20
A21
A22
A2
B21
B3
B1
B2
A17
B13
Z1
Z2
Z3
X3500
Z4
1207-2703
VDDE18 VDIG
A2
X3501
1206-1632
A4
A5
A7
A8
A9
A10
A11
B11
B10
B9
B8
B6
B4
A3
B7
B3
B2
B1
A1
B5
A6
Z1
Z2
Z3
Z4
X3501
R State = 2
A12
B12
B14
A1
B15
<NM>
1201-6517
5
6
3
1
2
4
7
N8301
R5323K022B-TR-FD
GND
VOUT1
CE1
VOUT2
CE2
VDD
GND_SLUG
A24
A3
B12
B19
VBATI
TP3500
TP3502
TP3503
TP3504
VBATI
T01_Upper_Keypad
VBATI
50 Pin B2B Connector
2.4" TFT LCD ZIF-
CONNECTOR
SEMC Troubleshooting Manual
87
(129)