LG 55EC9300 Repair Manual page 42
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Also See for 55EC9300:
- Owner's manual (64 pages) ,
- Operating manual (53 pages) ,
- Owner's manual (44 pages)
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+3.5V_ST
R2301
10K
R2300
RL_ON
P2300
10K
Q2300
SMAW200-H18S5
MMBT3906(NXP)
+3.5V_ST
POWER_WAFER_18PIN
VA23001
5.6V
AMOTECH CO., LTD.
L2304
PWR ON
INV ON
1
2
UBW2012-121F
3.5V
NC
3
4
3.5V
3.5V
5
6
C2307
+12V
GND
GND
0.1uF
7
8
16V
24V
24V
9
10
GND
GND
UBW2012-121F
11
12
12V
12V
13
14
12V
24V
15
16
L2303
C2306
GND
GND
17
18
0.1uF
50V
19
+3.3V - eMMC 4.41(LG1311-A0)
+3.3V_NORMAL
L2302
BLM18PG121SN1D
C2305
0.1uF
16V
+1.8V - eMMC 4.51(LG1311-B0)
DVDD18_EMMC
+3.3V_NORMAL
IC2306
AZ1117EH-ADJTRG1
IN
OUT
ADJ/GND
C2301
10uF
10V
+12V
+3.3V_NORMAL
D2304
PTVS13VS1UR
OPT
L2300
13V
BLM18PG121SN1D
C2302
C2303
10uF
0.1uF
16V
25V
IC2300
BD9D320EFJ
R2304
POWER_ON/OFF1
10K
EN
1
R2302
R2303
68K
FB
5.1K
2
1/16W
1/16W
1%
1%
VREG
3
DEV_BD9D320EFJ_E2
C2304
3.3V_DCDC_TI
100pF
IC2300-*1
50V
TPS54327DDAR
[EP]GND
SS
3A
4
EN
VIN
1
8
VFB
VBST
C2310
C2312
2
7
3.3V_DCDC_TI
1uF
2200pF
VREG5
SW
C2312-*1
3
6
10V
50V
3300pF
DCDC_ROHM
SS
GND
4
5
50V
Vout=0.765*(1+R1/R2)
THE
SYMBOL MARK OF THIS SCHEMETIC DIAGRAM INCORPORATES
SPECIAL FEATURES IMPORTANT FOR PROTECTION FROM X-RADIATION.
FIRE AND ELECTRICAL SHOCK HAZARDS, WHEN SERVICING IF IS
ESSENTIAL THAT ONLY MANUFACTURES SPECIFIED PARTS BE USED FOR
THE CRITICAL COMPONENTS IN THE
SYMBOL MARK OF THE SCHEMETIC.
Copyright ⓒ 2014 LG Electronics. Inc. All right reserved.
Only for training and service purposes
+3.3V_NORMAL
R2310
1K
R2309
100
INV_CTL
ECO_POWER_CTL
+24V
L2306
PWM_DIM2
UBW2012-121F
PANEL_CTL
OPT
R12014
ECO_POWER_CTL
MODEL_OPT_11
0
1/16W
C2316
5%
0.1uF
50V
3.3V_EMMC
+5V_NORMAL
POWER_ON/OFF2_1
C2300
22uF
10V
C2308
10uF
10V
POWER_ON/OFF2_3
C2317
22uF
10V
+3.3V_NORMAL
[EP]FIN
VIN
8
POWER UP SEQUENCE
16V
0.1uF
C2313
BOOT
5V/3.3V->2.5V->1.5V/1.1V->1.0V
7
L2301
2uH
SW
6
GND
C2314
5
C2315
22uF
22uF
10V
10V
PANEL_POWER
PANEL_VCC_DIRECT
L12007
PANEL_VCC
+12V
UBW2012-121F
Q2302
PMV48XP
L2313
UBW2012-121F
C2333
C2331
R2317
PANEL_VCC_FET
G
0.1uF
10uF
30K
50V
16V
R2318
5.1K
C
Q2301
B
MMBT3904(NXP)
R2314
10K
E
+2.5V
AP7173-SPG-13 HF(DIODES)
+3.3V_NORMAL
IC2302
[EP]
IN
OUT
1
8
R1
PG
FB
2
7
1.5A
VCC
SS
3
6
R2
R2312
EN
GND
4
5
10K
C9100
C2327
2200pF
10uF
50V
10V
Vout=0.8*(1+R1/R2)
+1.1V_CORE
R2311
10K
R2316
39K
R1
1/16W
5%
C2321
1000pF
R2
50V
RF
FB
1
23
THERMAL
PGOOD
GND
2
29
22
R2307
1K
EN
MODE
3
21
C2323
IC2301
VBST
VREG
4
20
TPS53513RVER
0.1uF
NC_1
VDD
16V
5
19
R2306
DEV_TPS53513RVER
C2320
2K
SW_1
NC_2
6
18
1/16W
0.1uF
SW_2
VIN_3
7
17
16V
5%
SW_3
VIN_2
L2305
8
16
1uH
SW_4
VIN_1
9
15
C2325
2200pF
C2319
C2318
50V
22uF
22uF
10V
C2322
10V
470pF
50V
Vout=0.6*(1+R1/R2)
C2347
0.1uF
50V
Power_DET
+12V
+3.5V_ST
R2325
P_DET_12V
P_DET_3.5V
2.7K
1%
R2326
P_DET_12V
1.2K
1%
PANEL_20V
PANEL_20V
TP5602
On-semi
+2.5V_NORMAL
R2327
8.2K
OPT
R2328
1.5K
1%
OPT
C2346
10uF
C2337
10V
0.1uF
16V
DDR MAIN 1.5V
+3.5V_ST
L2308
PVIN_1
PVIN_2
C2339
C2340
0.1uF
10uF
PGND_1
10V
16V
PGND_2
+12V
D2303
VIN_1
PH_3
1
1.5V_DCDC_TI
12
PTVS13VS1UR
OPT
THERMAL
VIN_2
PH_2
2
17
11
13V
GND_1
PH_1
3
IC2303-*1
10
L2307
TPS54319TRE
GND_2
SS/TR
4
9
1.5V_DCDC_TI
1.5V_DCDC_TI
R2329-*1
C2344-*1
15K
4700pF
1/16W
C2326
C2332
C2328
1uF
10uF
10uF
10V
16V
16V
+5.0V normal & USB
+12V
PTVS13VS1UR
13V
D2305
OPT
L2310
120-ohm
VIN_1
1
THERMAL
VIN_2
2
29
VIN_3
DEV-TPS65286RHDR
C2309
C2311
C2329
3
0.1uF
10uF
10uF
IC2304
50V
PGND_1
35V
35V
4
SN1302001(TPS65286RHDR)
OPT
PGND_2
5
PGND_3
6
V7V
7
C2330
0.0068uF
50V
POWER_ON/OFF2_4
PAGE 8
RESET IC_DIODES
IC2307-*1
APX803D29
R2337
VCC
RESET
+3.5V_ST
3
2
100K
1
R2338
RESET IC_ROHM
GND
R2330
10K
IC2307
0
OPT
5%
BD48K28G
R2350
POWER_DET
VDD
VOUT
100
3
2
1
C2355
0.1uF
GND
16V
C2365
0.1uF
16V
OPT
R2336
100K
not to RESET at 8kV ESD
OPT
IC2308
BD48K28G
R2349
POWER_DET_MODULE
VDD
VOUT
100
3
2
1
OPT
24V-->3.48V
C2356
GND
0.1uF
POWER_DET_MODULE
12V-->3.58V
50V
OPT
TP5604
ST_3.5V-->3.5V
POWER_ON/OFF2_2
1.5V_DCDC_TI
C4700
0.1uF
+1.5V_DDR
C2341
0.1uF
16V
NR5040T2R2N
L2309
2.2uH
SW_3
1
12
THERMAL
DEV_T-BD9A300MUV_E2
SW_2
2
11
17
C2345
C2349
SW_1
3
IC2303
10
22uF
22uF
BD9A300MUV
C2342
10V
10V
SS
4
3A
9
0.01uF
50V
C8200
100pF
R1
50V
R2331
1.5V_DCDC_TI
1/16W
330K
5%
R2329
2700pF
8.2K
1/16W
50V
C2344
R2
1%
1.5V_DCDC_ROHM
1.5V_DCDC_ROHM
Vout=0.8*(1+R1/R2)
R2
C2334
OPT
0.0068uF
C2335
C2336
50V
100pF
0.047uF
50V
25V
R2342
10K
C2348
C2351
C2352
22uF
22uF
10uF
R1
10V
10V
10V
C2343
82pF
50V
LX_3
21
4.7uH
L2311
LX_2
20
LX_1
C2338
19
0.047uF
L2311 Change, 131120
+5V_NORMAL
for Currnet UP
BST
25V
18
SW_IN2
17
C2350
SW_IN1
16
1uF
10V
NFAULT1
15
Vout=0.6*(1+R1/R2)
MID_LG1311
2013.03.22
POWER
8
31
LGE Internal Use Only
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