LG 65UF6450 Service Manual page 38
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Also See for 65UF6450:
- Owner's manual (65 pages) ,
- Easy setup manual (37 pages) ,
- Setup manual (37 pages)
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'15 UHD 13V ONLY POWER
+3.5V_ST
R2306
10K
RL_ON
R2301
10K
Q2300
12P_POWER_WAFER
MMBT3906(NXP)
P2301
C2345
SMAW200-H12S5K(BK)(LTR)
C2335
10uF
0.1uF
Default_Amotech
50V
VA2301
10V
5.6V
AMOTECH CO., LTD.
1
2
3
4
UF77:24V_AMP
+24V_AMP
L2313
5
6
UF68/64:13V_AMP
UBW2012-121F
7
8
C2348
0.1uF
9
10
50V
11
12
13
14
Default_Amotech
VA2300
15
16
5.6V
AMOTECH CO., LTD.
17
+3.3V_NORMAL
C2302
0.1uF
16P_POWER_WAFER
50V
P2302
SMAW200-H16S5K(BK)(LTR)
R2300
1K
INV_CTL
R2304
100
+3.3V - eMMC
+3.3V_NORMAL
+1.8V
3.3V_EMMC
DVDD18_EMMC
L2304
L2305
PZ1608U121-2R0TF
PZ1608U121-2R0TF
C2308
C2307
C2309
C2312
0.1uF
0.1uF
22uF
22uF
16V
16V
10V
10V
+1.8V - LM15U, eMMC
& Vx1 pull-up
+1.8V
+3.3V_NORMAL
IC2301
AZ1117EH-ADJTRG1
IN
OUT
ADJ/GND
C2310
10uF
10V
+3.3V_NORMAL
+12V
L2300
POWER_ON/OFF2_1
PZ1608U121-2R0TF
C2300
C2301
ROHM_BD9D321_1.5V_DDR_DCDC
10uF
0.1uF
25V
25V
IC2300
R2314
BD9D321EFJ
10K
ESD_DCDC
EN
C2372
1
0.1uF
R2302
R2303
FB
2
R1
18K
1K
1%
1%
VREG
3
C2303
3.3V_DCDC_TI
100pF
50V
SS
C2306-*1
3A
4
3300pF
R2305
50V
5.6K
C2305
C2306
1%
1uF
2200pF
10V
50V
3.3V_DCDC_ROHM
Switching freq: 700K
R2
Vout=0.765*(1+R1/R2)=3.36V
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
2015 LG Electronics Inc. All rights reserved.
Only for training and service purposes
+12V
+12V
L2311
UBW2012-121F
L2302
UBW2012-121F
C2304
C2347
UF77:12V
0.1uF
10uF
50V
25V
UF68/64:13V
100
RL_ON
PWM_DIM2
R2341
EPI
Default_Amotech
PANEL_CTL
VA2303
R2363
R2312
5.6V
4.7K
0
AMOTECH CO., LTD.
OPT
OPT
100
PWM_DIM
R2309
EPI
R2311
Default_Amotech
4.7K
VA2304
OPT
5.6V
R2310
AMOTECH CO., LTD.
33
OPT
PWM_TOUT
R2340
33
Vx1
PWM_TIN
+12V
L2309
PZ1608U121-2R0TF
+3.3V_NORMAL
C2322
10uF
25V
1.5V_DCDC_TI
C2332-*1
3300pF
50V
Switching freq: 700K
+3.5V_ST
+12V
C2311
10uF
10V
C2316
10uF
25V
+3.3V_NORMAL
TI_TPS54327_1.5V_DDR_DCDC
IC2300-*1
TPS54327DDAR
[EP]GND
EN
VIN
1
8
VFB
VBST
2
7
[EP]
VREG5
SW
3
6
SS
GND
4
5
VIN
8
16V
0.1uF
C2313
BOOT
7
L2306
2.2uH
SW
6
PS064T-2R2MS
DCDC_Diode
GND
ZD2300
5
C2314
C2317
22uF
22uF
10V
10V
PANEL_POWER
TYP 6000mA
C2327
C2331
C2330
10uF
0.1uF
0.01uF
AOS_PANEL_POWER_FET
IC2309
25V
50V
25V
AO4447A
OPT
S_1
D_4
1
8
OPT
OPT
S_2
D_3
R2329
C2367
C2315
2
7
10uF
10K
1uF
S_3
D_2
3
6
R2359
25V
25V
2K
G
D_1
4
5
OPT
OPT
R2331
R2361
1.8K
0
C
R2362
R2328
0
10K
B
Q2321
2N3904S
C2371
KEC_PANEL_CTL_TR
E
10uF
C
10V
B
Q2321-*1
MMBT3904(NXP)
NXP_PANEL_CTL_TR
E
DDR +1.5V
POWER_ON/OFF2_3
C2324
ROHM_BD9D321_1.5V_DDR_DCDC
0.1uF
25V
IC2303
R2326
BD9D321EFJ
[EP]
10K
ESD_DCDC
0.1uF
EN
VIN
1
8
C2336
0.1uF
C2349
25V
R2320
R2321
FB
BOOT
2
7
R1
18K
4.7K
L2312
1%
1%
2.2uH
VREG
SW
3
6
C2325
100pF
PS064T-2R2MS
50V
SS
GND
3A
4
5
C2338
22uF
R2322
10V
22K
C2328
C2332
1%
1uF
2200pF
10V
50V
1.5V_DCDC_ROHM
R2
Vout=0.765*(1+R1/R2)=1.554V
+3.5V_ST
IC2304
TPS563200
GND
VBST
1
6
ESD_DCDC
L2307
0.1uF
DCDC_Diode
2.2uH
C2350
SW
EN
ZD2301
2
5
3A
PS064T-2R2MS
VIN
VFB
3
4
R2
C2321
C2318
C2319
22uF
0.1uF
22uF
10V
25V
10V
Vout=0.765*(1+R1/R2)
Power_DET
+12V
PANEL_VCC
R2360
C2369
C2370
2K
10uF
0.1uF
OPT
25V
25V
ROHM_PANEL_POWER_FET
IC2309-*1
RRH140P03TB
S_1
D_4
1
8
S_2
D_3
2
7
S_3
D_2
3
6
G
D_1
4
5
+5V_Normal & +5V_USB with OCP
+1.5V_DDR
TI_TPS54327_1.5V_DDR_DCDC
IC2303-*1
TPS54327DDAR
[EP]GND
EN
VIN
1
8
VFB
VBST
2
7
VREG5
SW
3
6
SS
GND
4
5
OPT
C2320
100pF
50V
C2326
R2318
4700pF
4.7K
50V
+3.3V_NORMAL
OPT
R2333
0
OPT
DCDC_Diode
R2317
C2339
ZD2302
4.7K
22uF
2.5V
10V
USB_CTL3
+3.3V_NORMAL
R1
1%
1%
1/16W
1/16W
150K
33K
R2319
R2323
LM15 Power SEQUENCE
POWER_ON/OFF1(5V)
POWER_ON/OFF2_1(3.3V)
POWER_ON/OFF2_3(1.5V)
POWER_ON/OFF2_4(1.1V)
LM14A_PWR_1_13V_only
R2327
+3.5V_ST
100K
R2332
RESET_IC_KEC(MULTI)
10K
IC2306
OPT
KIC7529M2
R2330
POWER_DET
VCC
OUT
100
3
2
1
C2333
0.1uF
GND
25V
C2334
0.1uF
16V
not to RESET at 8kV ESD
RESET_IC_DIODES(MULTI)
IC2306-*1
APX803E29
VCC
RESET
3
2
1
GND
13V-->3.53V
+12V
L2308
50V
0.0068uF
C2337
C2346
10uF
R2334
100K
OPT
+5V_NORMAL
C2341
L2310
0.047uF
4.7uH
25V
EN
BST
1
18
THERMAL
COMP
LX_2
R2337
C2343
C2344
25
2
17
18K
82pF
22uF
SS
LX_1
1%
50V
16V
3
16
R1
IC2302
ROSC
FB
4
15
TPS65282REGR
R2
EN_SW2
SW_IN_2
5
14
4A
R2339
EN_SW1
SW_IN_1
3.3K
6
13
1%
C2342
10uF
+5V_USB_3
10V
R2335
10K
OPT
R2336
15K
5%
Vout=0.8*(1+R1/R2)
LM14A(UF68/UF64)
2015-01-23
23
LGE Internal Use Only
DCDC_Diode
ZD2303
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