LG VX9100 Service Manual page 146

R404
3.3k
C400 0.1u
C401 0.1u
R468
1
P40
0 TEST
2
+2.6V_MSMP2 P41
SEL_28P
3
P57 P42
U402
4
PP2106M1
P56 P43
R467
5
0 P55 P44
6
KEY_INT/
P17 P45
7
KEY_I2C_SCL P46
P15
+2.6V_MSMP2
R403
3.3k
<PMIC>
+VBATT
+VPWR
V_CHAR
C407
1u
+5V_USB
C402
1u
R412 10
USB_D+
R413 10
USB_D-
USB_SUSPEND USB_VPO
USB_VMO
C440
DNI
USB_DATA
USB_OE/
L400
2
1
+1.275V_MSMC
C404
R414
10u 280k
+/-1%
1608
C425
100p
+VPWR
C405
L401
10u
MIPF2016D2R2
1608
1 2
+1.85V_MSMP1
C406
10u
1608
+2.6V_MSMP2
R410
DNI
PMIC_INT/
PMIC_I2C_SDA
PMIC_I2C_SCL
ON_SW_SENSE/
R409 10k
PS_HOLD
RESIN/
PWR_ON_SW
C426 C427
4.7u 33p
1608
<QWERTY KEY MATRIX>
Row 6
Row 5
Row 4
Row 3
Row 2
Row 1
Row 0
21
20
19
18
17
16
15
col 0
col 1
col 2
col 3
col 4
col 5
col 6
col 7
R466
R405
DNI
1608
C423 C424
10u 10n
1608
G7 C6
CHG_IN SEL1
C1
LDO1
F7
VBUS
B6
SEL2
C403 1u
E7 A2
VTRM
LDO2
E6 C4
D+ RX_EN
D6 U401 B7
D- LDO3
LP3922
E5 A7
VP LDO4
D5
VM
F6 D4
RCV TCXO_EN
F5 C7
OE_N LDO5
G6
SUSPEND
A5
LDO6
MIPF2016D2R2
E1
SW_B1
A4
LDO7
F4
FB_B1
R415
180k D1
GND_B1
A3
+/-1% LDO8
F1
VIN_BUCK
A1
LDO9
F3
FB_B2
D3
CMP1
G2
SW_B2
C3
TCXO_OUT
R443
G1
GND_B2
1k
F2 C5
B2_EN CMPL
G3
IRQ_N
E2 D2
SDA INP1
E3
SCL
B4 C2
PON_N TCXO_IN
B5
PS_HOLD
B3 D7
RESET_N GND
B2
PWR_ON
R416 470
R417 470
R418
470
R419 470
R420 470
R421 470
R422 470
SW400 SW402 SW404 SW406
1 2 1 2 1 2 1
R423
470
1 2 3 4
SW401 SW403 SW405 SW407
1 2 1 2 1 2 1
R424
470
7 8 9 0
SW408 SW413 SW418 SW424
2 2 2
1 1 1 1
R425
470 LEFT OK RIGHT D
SW409 SW414 SW419 SW425
1 2 1 2 1 2 1
R426
470
H I J K
SW410 SW415 SW420 SW426
1 2 1 2 1 2 1
R427
470
N O P Q
SW411 SW416 SW421 SW427
1 2 1 2 1 2 1
R428
470
U V W X
SW412 SW417 SW422 SW428
1 2 1 2 1 2 1
R429
470 SHIFT DOT SPACE1 ENTER
SW423
UP DOWN CAM
1 2
R430
470
SPACE2
AC_OK/
+VPWR
C428
10u
1608
+2.6V_MSMP2
R431 0
+2.8V_LCD
SLEEP/
+2.85V_RX
+2.6V_MSMA
R435 0
TCXO_EN
+2.85V_TCXO
R437 0
+2.85V_TX
+3.0V_uSD
+2.8V_BT
+2.9V_HDET
EARPHONE_KEY/
SD_DETECT_PMIC/
EAR_MIC
SD_DETECT/
R469 DNI
SW429 SW431 SW433
2 1 2 1 2 1 2
UP 5 6
SW430 SW432 SW434
2 1 2 1 2 1 2
A B C
SW435 SW441 SW447
2 2 2 2
1 1 1
E F G
SW436 SW442 SW448
2 1 2 1 2 1 2
L M DOWN
SW437 SW443 SW449
2 1 2 1 2 1 2
R S T
SW438 SW444 SW450
2 1 2 1 2 1 2
Y Z Email
SW439 SW445 SW451
2 1 2 1 2 1 2
SEND CLR SYM
SW440 SW446 SW452
1 2 1 2 1 2
SOFT2 SOFT1 SPK
COM
<MAIN KEY B/L>
+VPWR
R464
10k
MAIN_KEY_LED_EN
<24.5454MHz CAM_CLK>
U408
CSC6R245454BEVRS00
L403
HB-1M1005-601JT
4 3
+2.6V_CAM_IOVDD
VDD OUT
R451
1k
1 2
GND
TRISTATE
C446
0.1u
C 3
2 Q401
B
KTC4075E
E
1
R465
DNI
R452 L404
22 82n
CAM_MCLK
C450
22p