LG 49LX761H, Руководство по обслуживанию

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THERMAL
THERMAL
THERMAL
THERMAL
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.
3.3V_EMMC
+3.3V_NORMAL
L2302
BLM18PG121SN1D
C2305
0.1uF
16V C2300
22uF
10V
R2306
1K
+13V
INV_CTL
P2301
SMAW200-H18S5
POWER_WAFER_18PIN
14
GND
9
GND
4
D13V
18
SIN
13
GND
8
A13V
3
GND
17
VSYNC
12
PDIM1
7
A13V
2
PDIM2
16
SCLK
11
DRV-ON
6
D13V
1
PWR ON
15
GND
10
GND
5
D13V
.
PWM_DIM
C2307
0.1uF
50V
PWM_DIM2
ZD2303
20V OPT
VA23001
5.6V
AMOTECH CO., LTD.
Default_Amotech
+13V_A
R2355
4.7K
OPT
VA23001-*1 ICVS0505201FR
Multi_Innochips
R2330
1K
OPT
L2304
UBW2012-121F
P2300
SMAW200-H12S5K(BK)(LTR)
POWER_WAFER_12PIN
9
4
8
3
12
7
2
11
6
1
10
5
13
C2306
0.1uF
50V
ZD2301
20V
OPT
ADUC 20S 02 010L
L/DIM0_SCLK
L2303
UBW2012-121F
L/DIM0_VS
R2307
100
L/DIM0_MOSI
R2354
4.7K
OPT
+3.3V_NORMAL
R2300
10K
RL_ON
R2343 0
OPT
R2301
10K
R2362
10K
OPT
Q2300
MMBT3904(NXP)
E
B
C
+3.5V_ST
+3.5V_ST
R2334
10K
OPT
IC2306
AZ1117EH-ADJTRG1
ADJ/GND
OUT IN
+3.3V_NORMAL
R2357
75
1/16W
1%
R2358
33
1/16W
1%
DVDD18_EMMC
R2347
1
ESR_1ohm
C2301
10uF
10V C2308
10uF
10V
D2302
2.5V
OPT
ZD2300
5V
3.3V_Diode_SEMTECH
C2360
0.1uF
16V
OPT
C2302
10uF
25V
R2304
10K
C2304
100pF
50V
C2315
22uF
10V
C2310
1uF
10V C2312
2200pF
50V
L2300
BLM18PG121SN1D
+13V
R2302
5.1K
1/16W
1%
R
2
3
0
5
2
2
K
1
/
1
6
W
1
%
IC2300
BD9D320EFJ
3
VREG
2
FB
4
SS
1
EN
5
GND
6
SW
7
BOOT
8
VIN
9
[EP]FIN
+3.3V_NORMAL
C2314
22uF
10V
C2303
0.1uF
25V
R2303
68K
1/16W
1%
L2301
2uH
NR8040T2R0N
POWER_ON/OFF1
C2313
0.1uF
16V
R2366
10K
PANEL_VCC
Q2302
PMV48XP
Default_NXP
G
D S
C2363
10uF
25V
VA23002
ADUC 20S 02 010L
OPT
PANEL_CTL
L2313
UBW2012-121F
R2314
10K Q2302-*1
AO3435
Multi_AOS
G
D S
C2331
0.1uF
50V
R2361
10K
+13V
4.7uF
10V
C2359
OPT
C2333
0.1uF
50V
R2346 3.3K
LVDS_DISCHARGE
R2317
36K C2347
10uF
25V
Q2301
MMBT3904(NXP)
E
B
C
R2318
150K
R2315
10K
10uF
C2321
10V
R
2
3
2
1
8
.
2
K
1
/
1
6
W
1
%
C2357
0.1uF
16V
+2.5V_NORMAL
POWER_ON/OFF2_1
+5V_NORMAL
ZD2305
5V
OPT
+3.3V_NORMAL
R
2
3
2
2
2
6
.
1
K
1
/
1
6
W
1
%
C2332
2700pF
50V
C2328
0.01uF
50V
IC2302
TJ2132GDP
3
IN
2
EN
4
BIAS
1
POK
5
SS
6
OUT
7
FB
8
GND
9
[EP]GND
C2354
10uF
10V
C2366
0.1uF
16V
OPT
R2319
430K
1/16W
1%
R2309 22K 1/16W 1%
C2318
0.033uF
50V
+1.1V_VDD
C2325
10uF
25V
C2316
1uF
10V
POWER_ON/OFF2_3
C2337
22uF
10V
C2327
330pF
50V
C2326
10uF
25V
C2346
22uF
10V
R2311
100K
1/16W
1%
ZD2304
2.5V
OPT
C2356
22uF
10V
IC2301
MP8762HGLE-Z
3
FB
2
FREQ
4
SS
1
EN
6
PG
5
AGND
7
VCC
8
BST
9
IN_1
10
PGND_1
11
PGND_2
12
PGND_3
13
PGND_4
14
IN_2
15
SW_1
16
SW_2
R2308 18K 1/16W 1%
+13V
R2316
100
1/16W
1%
R2320
560K
1/10W
5%
R2310
1K
L2312
R2313
4.7
1/16W
5%
C2319
0.1uF
16V
R2327
24.9K
1/16W
1%
IC2305
TPS563200
3
VIN
2
SW
4
VFB
1
GND
6
VBST
5
EN
+13V
R2328
11K
1/16W
1%
L2305
BLM18PG121SN1D
R
2
3
2
3
1
0
K
1
/
1
6
W
1
%
C2317
10uF
25V
C2353
0.1uF 16V
C2320
0.1uF
25V
C2358
10pF
50V
OPT
C2322
22uF
10V
+3.5V_ST
C2323
22uF
10V
R2312
10K
+3.5V_ST
POWER_DET
IC2307
BD48K28G
RESET IC_ROHM
1
GND
2
VOUT
3
VDD
IC2307-*2
APX803E29
RESET_IC_DIODES_NEW_APX803E29
1
GND
2
RESET
3
VCC
C2355
0.1uF
25V
R2338
10K
OPT
R2350
100
R2326
5.1K
1%
R2325
14K
1%
IC2307-*1
APX803D29
RESET IC_DIODES_APX803D29
1
GND
3
VCC
2
RESET
+13V
R2337
100K
C2365
0.1uF
16V
R2331
330K 1/16W 5%
C2361
0.1uF
16V
OPT
C2342
0.01uF
50V
R
2
3
3
3
1
8
K
1
/
1
6
W
1
%
R2324
10K
C2344
2700pF 50V
L2308
L2309
2.2uH
VLS5045EXT-2R2N
R
2
3
3
2
1
6
K
1
/
1
6
W
1
%
ZD2302
2.5V
OPT
C2345
22uF
10V
+1.5V_DDR
C2339
10uF
10V
POWER_ON/OFF2_2
+3.5V_ST
C2349
22uF
10V
C2340
0.1uF
16V
C2341
0.1uF
16V
IC2303
BD9A300MUV
1
PVIN_1
3
PGND_1
7
ITH
9
SS
10
SW_1
11
SW_2
12
SW_3
13
BOOT
14
PGD
15
EN
16
AVIN
5
AGND
8
MODE
6
FB
4
PGND_2
2
PVIN_2
17
[EP]FIN
R2329
8.2K
1/16W 1%
R
2
3
4
0
1
6
K
1
%
C2335
100pF
50V
OPT
R2345
6.8K
1/16W
1%
C2352
10uF
10V C2348
22uF
10V
/USB_OCD2
C2338
0.047uF
25V
C2336
0.047uF
25V
R2353
100K
1/16W
5%
R
2
3
4
1
1
5
0
K
1
%
+5V_NORMAL
C2334
2200pF
50V
L2310
120-ohm
C2350
1uF
10V
R2342
10K
R
2
3
3
5
1
6
K
1
%
C2329
0.1uF
50V
+5V_USB_2
R2339
10K
C2311
10uF
25V
C2351
22uF
10V
C2309
10uF
25V
OPT
R2359
4.7K
OPT
USB_CTL2
C2330
0.0068uF
50V
L2311
4.7uH
R2344
100K
1/16W
5%
+5V_USB_3
R2352
51K
1/16W
1%
C2343
82pF
50V
USB_CTL3
+13V
/USB_OCD3
POWER_ON/OFF2_4
R2360
4.7K
OPT
IC2304
SN1302001(TPS65286RHDR)
1
VIN_1
3
VIN_3
7
V7V
9
EN
10
SW_OUT2
11
SW_OUT1
12
SW_EN2
13
SW_EN1
14
NFAULT2
15
NFAULT1
16
SW_IN1
17
SW_IN2
18
BST
19
LX_1
20
LX_2
21
LX_3
22
SS
23
FB
24
COMP
25
RLIM
26
RSET1
27
RSET2
28
AGND
5
PGND_2
8
MODE/SYNC
6
PGND_3
4
PGND_1
2
VIN_2
29
[EP]
C
2
3
2
4
1
u
F
2
5
V
C2367
0.1uF
25V
OPT
C2368
4.7uF
50V
OPT
C2369
0.1uF
25V
OPT
C2370
0.1uF
25V
OPT
L2314
CB3216PA501E
Non_Cruise
R2367
10K
Q2303-*1
2N3906S-RTK
RL_ON_KEC
E
B
C
Q2303
MMBT3906(NXP)
RL_ON_NXP
E
B
C
ZD2300-*1
5V
3.3V_Diode_KEC
L2307
1.0uH
LPBN8050T-1R0N
R2347-*1 0
ESR_0ohm
L2306
4.7uH
MAIN POWER
29
8
xxLX761H-ZA 2015.02.05
+3.3V - eMMC 4.41/4.51
+1.8V - eMMC 4.51
3A
+3.3V_NORMAL
R1
Vout=0.765*(1+R1/R2)
R2
Q2302 Change: Diodes --> NXP, 131118
PANEL_POWER
Vout=0.6*(1+R2/R1)
+2.5V
R1
R2
2A
+1.1V_CORE
Vout=0.611*(1+R1/R2)
R2
R1
R1
Vout=0.765*(1+R1/R2)
R2
3A
+3.5V_ST
12V-->3.58V
not to RESET at 8kV ESD
Power_DET
ST_3.5V-->3.5V
3A
Vout=0.8*(1+R1/R2)
3A
DDR MAIN 1.5V
R1
R2
6A
+5.0V normal & USB
Vout=0.6*(1+R1/R2)
L2311 Change, 131120
R2
for Currnet UP
5.1V:R1-51K, R2-6.8K
R1
POWER UP SEQUENCE
3.3V->5V->1.5V->1.1V->2.5V
Copyright
ⓒ
2015 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only