LG 55EA8800, Руководство по обслуживанию

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THERMAL
THERMAL
THERMAL
THERMAL
THERMAL
THERMAL
THERMAL
THERMAL
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.
2013.03.05
POWER_BLOCK(OLED) 23
NC4_H13
L2311
BLM18PG121SN1D
NON_OLED
IC2302
AP7173-SPG-13 HF(DIODES)
3
VCC
2
PG
4
EN
1
IN
5
GND
6
SS
7
FB
8
OUT
9
[EP]
L2308
1uH
+24V
POWER_ON/OFF2_2
C2338
0.1uF
50V
C2316
0.1uF
50V
L2300
BLM18PG121SN1D
R2305 15K 1/16W 1%
C2343
22uF
10V
OPT
C2329
150pF
50V
C2307
0.1uF
16V
C2361
22uF
10V
+5V_NORMAL
C2347
0.1uF
50V
R2335
330K 1/16W 5%
C2354
0.1uF
16V
C2348
0.1uF
16V
R2331
10K
C2336
10uF
10V
R2300
10K
R2306
33K
1%
C2301
10uF
16V
C2318
0.1uF
16V
R2310
1K
R2340
56K
1/16W
1%
R2301
10K
C2312
3300pF
50V
R2343 16K
1%
R2304
10K
C2355
0.1uF
16V
Q2301
MMBT3904(NXP)
E
B
C
C2310
1uF
10V
C2303
10uF
16V
R2315
0
1/16W 5%
IC2300
TPS54327DDAR
DCDC_TI
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
R2312
10K
R2309
100
C2308
100pF
50V
DCDC_TI
+3.5V_ST
C2350
10uF
10V
+3.3V_NORMAL
Q2302
AO3407A
G
D S
C2319
22uF
10V
R2336
100K
C2356
0.1uF
16V
C2315
4700pF
50V
C2333
10uF
16V
R2322
4.3K
1%
IC2307
NCP803SN293
1
GND
3
VCC
2
RESET
R2337
100K
+12V
POWER_ON/OFF2_1
C2324
0.01uF
50V
10uF
C2327
10V
+12V
+12V
R2330
0
5%
PD_+3.5V
POWER_DET
P2300
SMAW200-H18S1
14
12V
9
24V
4
PDIM#1
18
GND
13
12V
8
GND
3
3.5V
17
GND
12
GND
7
GND
2
INV ON
16
24V
11
GND
6
PDIM#2
1
PWR ON
15
12V
10
24V
5
3.5V
19
+1.1V_VDD
L2307
2.2uH
NR5040T2R2N
C2322
22uF
10V
+2.5V_Normal
POWER_ON/OFF1
R2318 5.6K
C2364
100pF
50V
DCDC_TI
C2334
22uF
10V
IC2308
NCP803SN293
1
GND
3
VCC
2
RESET
+12V
R2339
47K
1%
C2311
0.1uF
50V
+1.5V_DDR
INV_CTL
L2312
4.7uH
2200pF
C2337
50V
L2318
L2301
IC2303
TPS54821RHL
3
GND_2
2
GND_1
4
PVIN_1
1
RT/CLK
6
VIN
5
PVIN_2
7
VSENSE
8
COMP
9
SS/TR
10
EN
11
PH_1
12
PH_2
13
BOOT
14
PWRGD
15
[EP]GND
C2359
0.01uF
50V
POWER_ON/OFF2_3
R2325
2.7K
1%
PD_+12V
C2323
22uF
10V
L2314
OLED
C2360
4700pF
50V
C2365
0.1uF
16V
+5V_NORMAL
+3.3V_NORMAL
C2317
22uF
10V
C2335
0.1uF
16V
R2338
10K
OPT
C2362
22uF
10V
C2302
180pF
50V
IC2305
TPS54319TRE
DCDC_TI
1
VIN_1
3
GND_1
7
COMP
9
SS/TR
10
PH_1
11
PH_2
12
PH_3
13
BOOT
14
PWRGD
15
EN
16
VIN_3
5
AGND
8
RT/CLK
6
VSENSE
4
GND_2
2
VIN_2
17
EP[GND]
+3.5V_ST
+3.5V_ST
R2314
10K
+24V
PANEL_CTL
R2313
1.3K
+12V
L2320
3.3uH
NR5040T3R3N
D2300 40V B540C
PANEL_VCC
+1.0V_VDD
RL_ON
C2306
0.1uF
50V
R2326
1.2K
1%
PD_+12V
C2330
22uF
10V
POWER_ON/OFF2_2
C2320
47pF
50V
C2331
0.1uF
50V
C2346
10uF
10V
+3.5V_ST
R2302
11K
1%
Q2300
MMBT3906(NXP) 1
2
3
R2344
51K
1%
C2313
4.7uF
16V
+1.1V_VDD
C2358
0.1uF
16V
+3.5V_ST
R2321
2K
1%
R2345
10K
R2317 33K
C2321
22000pF
50V
C2314
0.1uF
16V
R2334
15K
1/16W 5%
+12V
R2316 1K
C2305
0.1uF
16V
+3.3V_NORMAL
L2302
BLM18PG121SN1D
3.3V_EMMC
C2300
22uF
10V
C2309
10uF
35V
IC2304
RT8289GSP
3
NC_2
2
NC_1
4
FB
1
BOOT
5
EN
6
GND
7
VIN
8
SW
9
[EP]GND
C2339
22uF
10V
L2305
BLM18PG121SN1D
R2308
51K
1% C2332
0.1uF
16V
+3.3V_NORMAL
R2311
10K
C2325
100pF
50V
OPT
IC2301
TPS54327DDAR
3
VREG5
2
VFB
4
SS
1
EN
5
GND
6
SW
7
VBST
8
VIN
9
[EP]GND
R2319
15K
1%
C2304
10uF
16V
C2326
1uF
10V
+12V
C2328
3300pF
50V
C2340
22uF
10V
POWER_ON/OFF1
L/DIM0_VS
L/DIM0_SCLK
L/DIM0_MOSI
JP2308
JP2309
JP2310
L2309
3.6uH
SM-8040
IC2300-*1
RT7266ZSP
DCDC_RT
3
PVCC
2
FB
4
SS
1
EN
5
GND
6
SW
7
BOOT
8
VIN
9
[EP]GND
IC2305-*1
RT8079AGQW
DCDC_RT 3
GND_1
2
VIN_2
4
GND_2
1
VIN_1
5
AGND
6
FB
7
COMP
8
RT/SYNC
9
SS/TR
10
SW_1
11
SW_2
12
SW_3
13
BOOT
14
PGOOD
15
EN
16
VIN_3
17
[EP]GND
ZD2301
5V
C2341
22uF
10V
L2303
UBW2012-121F
L2304
UBW2012-121F
L2306
UBW2012-121F
L2313
UBW2012-121F
R2303 16K 1/16W 1%
L2310
4.7uH
R2347
5.6K
LVDS_DISCHARGE
R2346
5.6K
LVDS_DISCHARGE
POWER_ON/OFF2_4
R2348 0
R2307
120K
1/16W
1%
L/DIM0_MOSI
L/DIM0_VS
L/DIM0_SCLK
PANEL_20V
R2327
5.6K
1%
R2328
1.3K
1%
PANEL_20V
PWM_DIM
PWM_DIM2
ZD2300
2.5V
OPT
ZD2302
2.5V
OPT
ZD2303
2.5V
OPT
ZD2304
5V
24V-->3.48V
5A
12V-->3.58V
R1
not to RESET at 8kV ESD
R1
8A
Vout=0.765*(1+R1/R2)
+1.23V_CORE
+1.0V_VDD
Vout=0.6*(1+R1/R2)
1.5A
LG1154AN : 3.3V->2.5V->1.0V
LG1154D : 3.3V->2.5V->1.5V->1.1V
Switching freq: 700K
R2
DDR MAIN 1.5V
eMMC POWER
5V/3.3V->2.5V->1.5V/1.1V->1.0V
Vout=0.827*(1+R1/R2)=1.521V
3A
POWER UP SEQUENCE
LG1154A
Vout=0.8*(1+R1/R2)
R2
3A
+2.5V
PANEL_POWER
R1
R1
Vout=1.222*(1+R1/R2)
3A
R2
+5.0V normal & USB
LG1154D
Vout(1.24V)=0.6*(1+16k/15k)
R2
20V-->3.51V
Power_DET
$ 0.145
R2
R1
ST_3.5V-->3.5V
BSD-NC4_H039-HD
Vout=0.765*(1+R1/R2)
Switching freq: 700K
R1
3A
+3.3V_NORMAL
R2
OLED : 20V DET = POWER_ON/OFF2_4
Copyright ⓒ 2013 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only