LG GX500 Service Manual page 110

GX500 Operational Description GX500 Operational Description
4.14.2 Checking MODULE part 4.14.2 Checking MODULE part
Checking Points Checking Points
Figure 4-64. WI-FI/BT/FM MODULE Figure 4-64. WI-FI/BT/FM MODULE
WLAN+BT+FM
CN601 CN602
L602
1 1
C608
C607
0
DNI
close to 3
C688 C687
10uF 0.1u
FB602
R699
TP1(VBAT)
Figure 4-65. WI-FI/BT/FM MODULE Circuit Figure 4-65. WI-FI/BT/FM MODULE Circuit
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Only for training and service purposes
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TP 4~7(UART)) TP 4~7(UART))
TP3(VDD_WL_PA) TP3(VDD_WL_PA)
TP2 TP2
TP1 (VBAT) TP1 (VBAT)
TP1 (VBAT) TP1 (VBAT)
1.5n
C606
1p
1
ANT
2
GND5
3
VDD_WL_PA
4
WLAN_CMD SDIO_CMD
5
WLAN_CLK
SDIO_CLK
6
WLAN_SDIO[3]
SDIO_DATA_3
7
WLAN_SDIO[2] SDIO_DATA_2
8
WLAN_SDIO[1]
SDIO_DATA_1
9
WLAN_SDIO[0]
SDIO_DATA_0
10
WLAN_ENABLE
WL_RST_N
11
WLAN_WAKEUP
WL_WAKE_B
12
REG_ON REG_ON
13
VBAT_IN
14
0 SR_VLX1
15
SR_VLX1BB
C619
3.3UH
C699 C698
4.7uF L607
2.2uF 0.1u
4.7u
L699
C697
close to 17
C696
10uF
C695
0.1u
0.1u
TP(VDD_WL_PA)
Checking Flow Checking Flow
(TP1,2,3) is OK ? (TP1,2,3) is OK ?
(TP4,6,7,8) is OK ? (TP4,6,7,8) is OK ?
Board Change Board Change
TP699
TP4~7(UART)
TP698
TP697
TP 4~7(UART)) TP 4~7(UART))
TP696
45
BT_PCM_CLK
44
BT_PCM_OUT
43
BT_PCM_SYNC
42
BT_PCM_IN
41
VDD_BT_PA
40
32KHZ
U601 39
GND7
38
FM_ANT
TP695
37
BT_WAKE_B
36
BT_HOST_WAKE
35
BT_GPIO_3
34
BT_GPIO_4
33
BT_GPIO_7
32
XTALP
31
XTALN
TP692
C691
C692
1uF
0.1u
TP3(VDD_WL_PA) TP3(VDD_WL_PA)
C694 C693
4.7uF 2.2uF
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4. TROUBLE SHOOTING
Revision A Revision A
START START
No No
Yes Yes
No No
Yes Yes
BT_PCM_CLK
BT_PCM_RX
BT_PCM_SYNC
FB601
BT_PCM_TX
TP601
C689
CLK32K
1uF
FM_ANT
BT_WAKEUP
TP694
BT_HOST_WAKEUP
TP693
CLK_IN
BT_ENABLE
FM_R
FM_L
LGE Internal Use Only
LGE Property LGE Property
Check Check
POWER POWER
block block
Check Check
MODUEL MODUEL