LG GX500 - Page 110

- 111 -
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Only for training and service purposes
LGE Internal Use Only
4. TROUBLE SHOOTING
GX500 Operational Description Revision A
LG Electronics 111/143 LGE Property
4.14.2 Checking MODULE part
Checking Points
Figure 4-65. WI-FI/BT/FM MODULE Circuit
TP1 (
VBAT)
TP3(VDD_WL_PA)
TP
2
TP 4~7(UART))
Check
POWER
block
No
Yes
Board Change
No
Yes
Check
MODUEL
Fi
g
ure 4-64. WI-FI/BT/FM MODULE
(
TP1
,
2
,
3
)
is OK ?
(
T
P4
,
6
,
7
,
8
)
is OK ?
STAR
T
TP1 (
VBAT)
TP3(VDD_WL_PA)
TP 4~7(UART))
Checking Flow
GX500 Operational Description Revision A
LG Electronics 111/143 LGE Property
4.14.2 Checking MODULE part
Checking Points
Figure 4-65. WI-FI/BT/FM MODULE Circuit
TP1 (
VBAT)
TP3(VDD_WL_PA)
TP
2
TP 4~7(UART))
Check
POWER
block
No
Yes
Board Change
No
Yes
Check
MODUEL
Fi
g
ure 4-64. WI-FI/BT/FM MODULE
(
TP1
,
2
,
3
)
is OK ?
(
T
P4
,
6
,
7
,
8
)
is OK ?
STAR
T
TP1 (
VBAT)
TP3(VDD_WL_PA)
TP 4~7(UART))
Checking Flow
0.1u
C698
0.1u
C695
4.7u
L699
U601
03 92
82 72
62 52 42
32 22 1
2
0
2
9
1
8
1
7
1
6
1
31
3215
14
33
3413
3512
3611
3710
389
398
407
6
415
4
42
433
442
45
1
64 74
84
94 05 15 25
3
5
4
5
4DNG 3
D
N
G
2DNG
1DNG
B_EKAW
_
TSOH_LW
DXT_TRAU_TB N_STC_TRAU_TB
N_ST
R
_
T
RA
U
_
TB
DXR
_
TRAU
_
TB
ANT
BT_PCM_CLK
GND5 BT_PCM_OUT
VDD_WL_PA BT_PCM_SYNC
BT_PCM_IN
SDIO_CMD
SDIO_CLK VDD_BT_PA
SDIO_DATA_3
SDIO_DATA_2 32KHZ
SDIO_DATA_1 GND7
SDIO_DATA_0 FM_ANT
WL_RST_N BT_WAKE_B
WL_WAKE_B BT_HOST_WAKE
REG_ON BT_GPIO_3
VBAT_IN BT_GPIO_4
BT_GPIO_7
SR_VLX1
SR_VLX1BB XTALP
XTALN
BB
2X
LV
_RS
BBTUOV_RS
OIDDV
UP_LATX
DS_OIDDV
21_GID_DDV
21_ANA_DDV
ODL_NIV
MF_
D
DV
ADS_TB LCS
_
TB
LFAV RFAV
TSR_TB
6DNG
0.1u
C692
C693
2.2uF
OIV_26V2
TP692
TP693
TP695
TP694
TP699
TP698
TP697
TP696
0
R699
1uF
C689
3.3UH
L607
10uF
C697
TABV
FB601
1uF
C691
2.2uF
C699
0.1u
C687
4.7uF
C619
FB602
C688
10uF
0.1u
C696
C694
4.7uF
TBV_56V2
OIV_26V2
TP601
CN601
1
1p
C606
C607
DNI
CN602
1
0
C608
1.5nL602
FM_ANT
FM_L
FM_R
XT_TRAU_TB
XR_TRAU_TB
WLAN_SDIO[3]
BT_PCM_CLK
BT_HOST_WAKEUP
CLK32K
QER_KLC_TB
CLK_IN
PUEKAW_TSOH_NALW
WLAN_CMD
WLAN_CLK
WLAN_SDIO[0]
WLAN_SDIO[1]
WLAN_SDIO[2]
BT_WAKEUP
WLAN_WAKEUP
BT_PCM_TX
BT_PCM_RX
BT_PCM_SYNC
BT_ENABLE
WLAN_ENABLE
STR
_
TRAU_TB
ST
C
_
T
RAU_TB
REG_ON
close to 17
close to 3
WLAN+BT+FM
TP1(VBAT)
TP3(VDD_WL_PA)
TP4~7(UART)