Table of Contents
Advertisement
4.8.2 Sub Board
RXPLL_PWR_EN
RF_PWR_EN
TXPLL_PWR_EN
RF_PWR_EN
R543
LGE Internal Use Only
1V5_DCDC
R537
DNI
R541
0
1V5_DCDC
R547
0
R539
DNI
C542
1u
SYS_PWR
RT8016L-GQW
VIN
3
EN
2
GND1
1
U508
SYS_PWR
RT8016L-GQW
10K
VIN
3
EN
GND2
2
GND1
FB_VOUT
1
4. TROUBLE SHOOTING
U506
RP114K121D
4
1
VDD
VOUT
3
2
CE
GND
C540
1u
TP1
TP1
U507
RP114K121D
4
1
VDD
VOUT
3
2
CE
GND
TP2
U502
L502
TP4
LX
5
VLS3012T-2R2M1R5
GND2
6
R513
100K
FB_VOUT
7
47p
C515
TP3
2.2u
L505
LX
5
VLS3012T-2R2M1R5
R545
6
150K
7
47p
C547
- 50 -
Copyright © 011 LG Electronics. Inc. All right reserved.
4. TROUBLE SHOOTING
1V2_RX_PLL
R538
0
C541
TP1
1u
RF Tx/Rx PLL LDO
1V2_TX_PLL
R540
0
C543
TP2
1u
1V2_RF
TP4
2.2u
R511
0
RF DCDC
1V5_DCDC
R546
0
1.5V DCDC
Only for training and service purposes
Hide quick links:
Advertisement
Table of Contents
Troubleshooting
