LG 47LM6400 Service Manual page 65

+5V_USB FOR USB1
POWER_ON/OFF2_4
R4328
10K
C4327
0.1uF
16V
16V
IC4305
+24V 0.1uF C4329
TPS54331D
L4305
BOOT
1
BLM18PG121SN1D
VIN
2
3A
C4324
C4326
10uF EN
0.1uF
3
35V 50V
SS/TR
4
C4328
0.01uF
50V
Vout=0.8*(1+R1/R2)
IC4306
[EP]GND SN1104041, DC-DC+2CH USB SW
+12V
V7V
24
C4341
AGND_3
4.7uF
L4306 23
10V
BLM18PG121SN1D
VIN_2
22
VIN_1
C4325
21
10uF
16V
PGND_2
20
PGND_1
19
BST
+5V_USB 18
C4331
L4307
0.1uF
3.6uH
LX_2
16V
17
DEV_USB_DCDC_BD86180
IC4306-*1
BD86180MUV C4337 C4301
[EP]GND LX_1
22uF 22uF 16
EN VREG
1 24
COMP GND_3 10V 10V
2 23
SS 3 22 VIN_2
SW_IN_3
RT VIN_1
4 21 15
CTL2 PGND_2
5 20
CTL1 6 19 PGND_1
FLG2 BST SW_IN_2
7 18
14
FLG1 8 17 SW_2
USB_OUT2 SW_1
9 16
GND_1 USB_IN_3
10 15 SW_IN_1
13
GND_2 11 14 USB_IN_2
USB_OUT1 USB_IN_1
12 13
ESD for MTK
THE SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FILRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFATURES SPECFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
MAX 2A
L4308
6.8uH
PH
C4333 C4336
8
22uF 0.1uF
10V 16V
GND
7
COMP
6
C4332 C4334
VSENSE
47pF 4700pF
5
50V 50V R1
OPT
R4336
C4338
20K
1000pF
50V
R2
R4332
POWER_ON/OFF2_4
10K
C4300
0.1uF
16V
EN
1
R4342
COMP
10K
2
5%
USB_DCDC_SN1104041
C4340 C4340-*1
SS
C4342
3 4700pF 0.01uF
100pF
50V 50V
50V
USB_DCDC_BD86180
ROSC
4
USB_DCDC_SN1104041
EN_SW2
5
EN_SW1
6
NFAULT2
7
NFAULT1
8
+5V_USB_3
SW_OUT2
9
AGND_1
10
+5V_USB_2
AGND_2
11
SW_OUT1
12
ESD for LG1152
/USB_OCD1
USB_CTL1
USB_DM1
USB_DP1
+3.3V_NORMAL
USB_CTL2
/USB_OCD2
USB_DM2
USB_DP2
From SoC
USB_DM3
USB_DP3
USB_CTL3 WIFI_DM
/USB_OCD3
WIFI_DP
+3.3V_NORMAL
R4327
R4323
10K
10K
OPT
IC4303
TPS2554 [EP]
GND FAULT
1 10
IN_1 OUT_2
2 9
IN_2 OUT_1 C4323
3 8
ILIM_SEL ILIM0
4 7
EN ILIM1
5 6
+5V_USB_2
+5V_USB_3
USB_WIFI
+5V_USB
L4302 WIFI 120-ohm
BLM18PG121SN1D
C4319
C4320
0.1uF
0.1uF
16V
16V
WIFI
WIFI
For EMI
USB3_HUB_WiFi
USB1
10uF DVR Ready
10V
MAX 1.8A
3AU04S-305-ZC-(LG)
JK4303
USB2
MAX 1.5A
3AU04S-305-ZC-(LG)
JK4302
C4322
10uF
10V
USB3
MAX 1.5A
3AU04S-305-ZC-(LG)
JK4300
C4310
10uF
10V
C4339
C4321
MAX 0.4A
10uF 10uF
10V
10V
WIFI WIFI
P4301
12507WR-04L
WIFI
VDD
1
DM
2
DP
3
GND
4
5
.
2011.10.26
43
LGE Internal Use Only