Lge Internal Use Only - LG -T500 Service Manual

CIRCUIT
BB Chip
SPK_L
SPK_R
AMP_HS_P
AMP_HS_N
I2C_SDA
I2C_SCL
C536
FM_ANT
1n
C501 L501
27p 100n
R522
HS_GND
DNI
HS_MIC

LGE Internal Use Only

G1
DDR_DQS[1]
BC3_n
J5
DDR_CLK_P
SDCLKO
T2
BFCLKO_0
DDR_CLK_N
J4
BFCLKO_1
P4
DDR_CKE
CKE
P11
ANAMON
VBAT
K17
BT_CLK_REQ
FSYS_EN
M17
EPN R504
M18 0
EPP
R16
HSL
T16
HSR
N18
LSN
VDD_IO_1V8
N17
LSP
2.2u
C504
C4
IN3-
C3
IN3+
C507 47n
A3
IN1+
C508 47n B3
IN1- M501
TP01
C539 47n
A4
IN2+
C540 47n
B4
IN2-
TP0
B2
SDA
C2
SCL
C514 C515 C516
2.2u 2.2u 2.2u
R510
0
FB507
10
M6-GND
6
M1-R
1
M4-DETECT
4D
M4-L
4
M5-MIC
5
J501
ZD503 ZD504 ZD505 ZD506
VA501
VDD_IO_1V8
R511
1M
R512 5
VIN-
4
VCC
1K
VIN+
3
GND
2
R514
220K
VMIC_BIAS_P
47p
47p
DNI DNI
VAUD_HS_BIAS
C234 C235
C232 C233
C502 C503
10u 0.1u
FB505 600
E3
OUT+
E4
OUT-
600
FB506
B1
HPL
A1
HPR
D1
CP
C513
E1 2.2u
CN
VDD_IO_1V8
HS_GND
R501
1M
R502
100K
R503
10
TP06
FB502 1800
FB503
1800
TP05
FB501
1800
FB504
1800
HS_MIC
Headset MIC
Resoldering points
VAUD_HS_BIAS
R508
1.5K
R509
2.2K
C521
C520
10u 39pF
U501
1 R513
OUT 47
C523
120p
In case of absence of HOOK must be removed
- 9 - Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
RCV_HS_N
RCV_HS_P
SPK_L
SPK_R
SPK_P
SPK_N
HS_OUT_L
HS_OUT_R
C509 C510 C511 C512
39p 39p 39p 39p
MTK, INFINEON must be connected
S
2
D
3
G
1
Q501
TP04
L503
HS_OUT_R
100n
HS_JACK_DET
TP03
L502
HS_OUT_L
100n
C505
C506
39pF
39pF
HS_GND
C517
HS_MIC_N
22n
C518
39pF
C519
HS_MIC_P
22n
C522
39pF
HS_GND
HS_HOOK_DET
R521
100K
Only for training and service purposes