LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
4. TROUBLE SHOOTING
- 130 -
MICBIAS
T15
AC18
LINE_ON
LINE_OP
AC17
HPH_L
W17
AA17
HPH_R
EAR1ON
AE18
EAR1OP
AF18
HP_R
HP_L
RCV+
RCV-
MICBIAS
SPK_L
SPK_R
FB501
FB500
C535
1u
C532
1u
R2_GPIO3
6
RIN
5
4
RIP
ROUT1
29
ROUT2
23
16
SCLK
27
VMID
DACDAT
10
L2_GPIO2
3
LIN
2
1
LIP
LOUT1
30
25
LOUT2
7
LRC
11
MCLK
MICBIAS
32
18
MODE
OUT3
22
21
OUT4
ADCDAT
9
24
AGND2
AUXL
19
AUXR
20
8
BCLK
15
CSB_GPIO1
C533
4.7n
R511
18K
10u
C525
C534
1u
K
9
4.7n
C542
NA
C531
1K
R516
R510
1K
C541
1u
C536
1u
C539
1u
12n
C547
C524
0.1u
NA
C544
C543
NA
12n
C530
18K
R517
MIC_PWR
MMP_A_MCLK
CODEC I2C SCL
HP_EAR_L
MIC2P
HP_EAR_R
MID_MICP
SPK_L
SPK_R
FM_AUDIO_L
FM_AUDIO_R
MMP_A_BCLK
MMP_ADO_DACDAT
MMP_A_LRCLK
MMP_ADI_ADCDAT
SPK_OUT-
AXK740327G
VREG_MMC_3.0V
8
9
3
30
31
32
33
34
35
36
37
38
39
4
40
5
6
7
15
16
17
18
19
2
20
21
22
23
24
25
26
27
28
29
CN603
G1
G2
1
10
11
12
13
14
VREG_MSMP_2.7V
+VPWR
VREG_BT_2.85V
MMP_CAM_PWR_EN
SPK_OUT-
HOOK_SENSE_N
EAR_MIC_P
MICROSD_DATA[1]
MICROSD_DETECT
MICROSD_CLK
MICROSD_DATA[0]
MICROSD_CMD
CAM_VDD_AF_2.7V
WHEEL_SW_L
WHEEL_SW_R
CAM_VDD_SD_1.8V
V_BACK_UP
TCXO_BT
BT_TX_RX_N
BT_SBST
BT_SBCK
BT_SBDT
BT_CLK
BT_DATA
MICROSD_DATA[3]
MICROSD_DATA[2]
Summary of Contents for U990
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