LG 42LY770M Service Manual Download Page 52 | Manualshive

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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.

P_CH_DN

022:A26

R9539

750

1/8W

1%

R9525

10K

1/8W

1%

R9533

200

1/8W

1%

+12V_PILLOW

UPS_Power

IC9501

PC17L1(5V/35V 4P)

2

1

3

4

+3.5V_ST

R9535

470

1/10W

5%

R9530

3K

R9500

47K

R9501

10

1/4W 5%

R9509

200

1/10W

1%

R9540

1K

1/10W

5%

PILLOW_CTL_0

R9529

33

C9508

10uF

25V

D9503-*1

MMBD3004S

NEW

A

AC

C

IC9503

PC17L1(5V/35V 4P)

2

1

3

4

T9500

EE1616H-210uH

3

2

4

1

5

8

6

PILLOW_CTL_1

R9512

4

7

0

1

/

8

W

1

%

IC9502

PC17L1(5V/35V 4P)

2

1

3

4

C9510

0.1uF

50V

L9503

C9517

220uF

25V

12VDC_1

023:AF6

C9505

1500pF

50V

5VD

023:D1;023:H3;023:L1;023:P11

R

9

5

3

6

4

7

0

1

/

8

W

1

%

L9502

C9506

0.1uF

50V

12VD

023:L3

R9511
200

1/10W
5%

IC9500

MC34063ADR2G

3

TIMING_CAPACITOR

2

SWITCH_EMITTER

4

GND

1

SWITCH_COLLECTOR

5

COMPARATOR_INPUT

6

VCC

7

IPK_SENSE

8

DRIVER_COLLECTOR

JK9500

3

CH_UP

2

NC

1

ON/OFF

6

CH_DN

5

AUDIO

4

COM

C9501

10uF
16V

P_ON_OFF

022:I24

R9503

1

IC9506

PC17L1(5V/35V 4P)

2

1

3

4

D9502

100V

1N4148W

UPS_Power

PILLOW_OUT

D9503

1V

KDS135S

OLD

+3.5V_ST

C9509
0.1uF

50V

RL9501

IM02NSL

2

6

1

5

3

4

7

8

R9528

3K

R9534

200

1/8W

1%

R9522

1.6K

1/4W

RL9500

IM02NSL

2

6

1

5

3

4

7

8

R9520

3K

R9506

200

R9531

33

R9510
200

1/10W
5%

12VD

R9514

200

P_CH_UP

022:B24

GND

R9532

33

C9507

10uF
16V

D9501

100V

1N4148W

R9542

1K

1/10W

5%

R9518

10K

IC9504

PC17L1(5V/35V 4P)

2

1

3

4

R9521

3K

R9513

200

L9500

12VD

R9507

1K

1/4W

1%

D9500

100V

1N4148W

R9524

33

Q9500

2SC3875S(ALY)

E

B

C

IC9505

PC17L1(5V/35V 4P)

2

1

3

4

PILLOW_CTL_0

5VD

023:H3;023:L1;023:P11;023:P8

5VD

023:D1;023:H3;023:L1;023:P8

R9537

470

1/10W

5%

PILLOW_CTL_1

R9527

33

L9504

12VDC_1

023:AF4

R9517

10

1/4W

5%

USP_1

USP_1

R9515

47K

R9504

3.6K

1/10W

5%

R

9

5

3

8

4

7

0

1

/

8

W

1

%

T9501

AT2020-C

2

4

7

9

5

R9541
0

+3.5V_ST

SEL_PILLOW_1

C9503
0.1uF

50V

R9526

10K

R9519

10K

12VDC_1

5VD

023:D1;023:H3;023:P11;023:P8

R9516

10

1/4W 5%

Q9501

2SC3875S(ALY)

E

B

C

5VD

023:D1;023:L1;023:P11;023:P8

R9508

47

1/4W

5%

SEL_PILLOW_0

R9505

1K

R9523

1.6K

1/4W

L9501

C9512

0.022uF

50V

C9502

2200pF

50V

C9511

470uF

16V

USP_1

C9515
0.1uF

50V

C9504

1uF
50V

C9500

100uF

25V

R9547

12K

1%

C9516
0.1uF
16V

C9519
3300pF
50V

C9514
10uF
25V

R9545

11K

1%

C9522
0.1uF
16V

R9543

12K

R9544

10K

C9521
22uF
16V

L9506
3.6uH

NR8040T3R6N

R9546

56K

1%

C9520

100pF

50V

OPT

IC9507

AOZ1051PI

3

AGND

2

VIN

4

FB

1

PGND

5

COMP

6

EN

7

SS

8

NC

9

[EP]LX

L9507

C9513
10uF
25V

L9505

C9518

2200pF

12VD

5VD

R9502

4.7

: Pillow Isolation

Drawing with Line pattern

Drawing with Line pattern

Universal Pillow Voltage

PILLOW

25

2014/10/14

LY770M-UA

25

+5V_Pillow

Vout=0.8*(1+R1/R2)=5.27V

R1

3A

MAX 1A

R2

Copyright © 2014 LG Electronics Inc. All rights reserved.
Only for training and service purposes

LGE Internal Use Only

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Summary of Contents for 42LY770M

Page 1: ...ODEL 42LY770M 42LY770M UA CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL LED TV SERVICE MANUAL North Latin America http aic lgservice com Europe Africa http eic lgservice com Asia Oceania http biz lgservice com Internal Use Only ...

Page 2: ...l rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 8 TROUBLE SHOOTING GUIDE 20 BLOCK DIAGRAM 26 EXPLODED VIEW 27 SCHEMATIC CIRCUIT DIAGRAM APPENDIX ...

Page 3: ...inals etc to be sure the set is safe to operate without damage of electrical shock Leakage Current Cold Check Antenna Cold Check With the instrument AC plug removed from AC source connect an electrical jumper across the two AC plug prongs Place the AC switch in the on position connect one lead of ohm meter to the AC plug prongs tied together and touch other ohm meter lead in turn to each exposed m...

Page 4: ...ctrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharg ing wrist strap device which should be removed to prevent potential shock reasons prior to applying power to the unit under test 2 After removing an electrical assembly equipped with ES devices place the assembly on a conductive surface such as aluminum foil to prevent e...

Page 5: ...he solder joints of the two original leads If they are not shiny reheat them and if necessary apply additional solder Fuse and Conventional Resistor Removal Replacement 1 Clip each fuse or resistor lead at top of the circuit board hollow stake 2 Securely crimp the leads of replacement component around notch at stake top 3 Solder the connections CAUTION Maintain original spacing between the replace...

Page 6: ...rawing and specification by part number in accordance with BOM 5 The receiver must be operated for about 5 minutes prior to the adjustment 3 Test method 1 Performance LGE TV test method followed 2 Demanded other specification Safety CE IEC specification EMC CE IEC 4 Model General Specification No Item Specification Remarks 1 Receiving System ATSC NTSC M 64 QAM 256 QAM North America 2 Available Cha...

Page 7: ... 015 85 50 VESA WXGA X 8 1280 1024 63 981 60 020 108 00 VESA SXGA O 9 1920 1080 67 5 60 148 5 HDTV 1080P O DTV 1 640 480 31 469 59 94 25 175 SDTV 480P 2 640 480 31 5 60 25 200 SDTV 480P 3 720 480 31 50 60 27 027 SDTV 480P 4 720 480 31 469 59 94 27 00 SDTV 480P 5 1280 720 45 00 60 00 74 25 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1920 1080 33 75 60 00 74 25 HDTV 1080I 8 1920 1080 33 72 5...

Page 8: ... items 3 1 Main PCBA Adjustments 1 ADC adjustment Component 480i 1080p 2 EDID downloads for HDMI Remark Above adjustment items can be also performed in Final Assembly if needed Adjustment items in both PCBA and final assembly stages can be checked by using the INSTART Menu 1 ADJUST CHECK 3 2 Final assembly adjustment 1 White Balance adjustment 2 RS 232C functionality check 3 Factory Option setting...

Page 9: ...gnal Cable to RS 232 Jack Write Serial number by use RS 232 Must check the serial number at Instart menu 4 5 2 Method notice A VESA Serial number D L is using of scan equipment B Setting of scan equipment operated by Manufacturing Technology Group C Serial number D L must be conformed when it is produced in production line because serial number D L is mandatory by D book 4 0 Manual Download Model ...

Page 10: ...x LGTV e Checksum LG TV Changeable by total EDID data f Vendor Specific HDMI Chassis MODEL NAME HEX LA4BY 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 INPUT Model name HEX _ HDMI1 67 03 0C 00 10 00 80 1E HDMI2 67 03 0C 00 20 00 80 1E Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ͳ Ω ͳ Ω ʹ Ω Ω Ͷ Ω ͷ Ω ͷͷ ͷͷ ͷͷ ͷͷ ͷͷ ͷͷ Ͷ ᐓ ᐔ Ω ᐕ Ͳ Ͳ Ͳ ͶͶ Ͳ ʹ Ω ͷ Ͳ Ω Ͳ ʹ Ω Ͷ ͳ ͳ Ω Ͷ ͷ Ͳ Ω Ͷ Ͷ Ͳ ᐖ Ω ᐖ ᐗ Ω ͷ Ω ᐘ Ͷ Ͳ Ω ʹ Ͳ Ͳ Ͷ Ω ʹ ʹ ...

Page 11: ...MODEL NAME HEX LA4BY 00 00 00 FC 00 4C 47 20 54 56 0A 20 20 20 20 20 20 20 INPUT Model name HEX _ HDMI1 78 03 0C 00 10 00 80 1E 20 CO 0E 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 HDMI2 78 03 0C 00 20 00 80 1E 20 CO 0E 01 4F 00 FE 08 10 06 10 18 10 28 10 38 10 Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ω Ͳ Ω ͳ Ω ʹ Ω Ω Ͷ Ω ͷ Ω ͷͷ ͷͷ ͷͷ ͷͷ ͷͷ ͷͷ Ͷ ᐓ ᐔ Ω ᐕ Ͳ Ͳ Ͳ ͶͶ Ͳ ʹ Ω ͷ Ͳ Ω Ͳ ʹ Ω Ͷ ͳ ͳ Ω Ͷ ͷ Ͳ Ω Ͷ Ͷ Ͳ ᐖ Ω ᐖ ᐗ Ω Ͷ ͷ Ω ᐘ Ω...

Page 12: ...DJ mode using P ONLY key or POWER ON key 2 Place optical probe on the center of the display It need to check probe condition of zero calibration before adjustment 3 Connect RS 232C Cable 4 Select mode in ADJ Program and begin a adjustment 5 When WB adjustment is completed with OK message check adjustment status of pre set mode Cool Medium Warm 6 Remove probe and RS 232C cable W B Adj must begin as...

Page 13: ... Overview 1 Tool option selection is only done for models in Non USA North America due to rating 2 Applied model LA4BX Chassis applied to CANADA and MEXICO 5 2 2 Country Group selection 1 Press ADJ key on the Adj R C and then select Country Group Menu 2 Depending on destination select KR or US then on the lower Country option select US CA MX Selection is done using KEY 5 2 3 Tool Option Inspection...

Page 14: ...cursor on screen by pressing Wheel key of RCU 3 Stop paring with TV set by pressing Back Home key of RCU 5 4 3 Applied models 5 4 Wi Fi MAC Address Check 5 4 1 Using RS232 Command 5 4 2 Check the menu on in start 5 5 Wi Fi Test Step 1 Turn on TV Step 2 Select Network Connection option in Network Menu Installer menu 119 253 Menu Network Step 3 Select Start Connection Button in Network Setting Wi Fi...

Page 15: ...een Function Inspection Step 1 Turn on the TV Step 2 Press EYE button on the adjustment remote controller Step 3 Cover Eye Q sensor on the front of set with your hands hold it for 6 seconds Step 4 Check the Sensor Data on the screen make certain that Data is below 10 If Data isn t below 10 in 6 seconds Eye Q sensor would be bad You should change Eye Q sensor Step 5 Uncover your hands from Eye Q se...

Page 16: ...for the JIG on and MPI cable 4 RJP MPI Pin check is carried out automatically 5 The result is shown as below Picture 3 6 If RJP MPI Pin check finished or you check other function must remove the RJP MPI cable from TV 6 3 Pro Idiom Check 1 Connect the RF Cable 2 Turn to the Pro Idiom channel No 333 3 Check the video sound Only displayed at POWER ONLY mode 6 4 b LAN Main board Check 6 4 1 Overview I...

Page 17: ... Start UTC 1000 TOP2 JIG 11pin Connection 4 Checking b LAN MAC Address Check whether it is same their address numbers or not between b LAN Label and on the pc address numbers Checking JIG contents 1 Check whether displaying all Pass or not at the number 3 4 6 7 9 contents of UTC 1000 on the PC 2 Check Version 6 27 of the 1 b LAN Application version 3 Check whether it is same their address numbers ...

Page 18: ...ST POWER CORD GND LIVE NEUTRAL LEAKAGE CURRENT At 0 5 mArms 9 USB S W Download Service only 1 Put the USB Stick to the USB socket 2 Automatically detecting update file in USB Stick If your downloaded program version in USB Stick is Lower it didn t work But your downloaded version is Higher USB data is automatically detecting Download Version High Power only mode Set is automatically Download 3 Sho...

Page 19: ...If ADC calibration is failure after recheck ADC pattern or condition retry calibration 10 2 Manual White balance Adjustment 10 2 1 Adj condition and cautionary items 1 Lighting condition in surrounding area surrounding lighting should be lower 10 lux Try to isolate adj area into dark surrounding 2 Probe location Color Analyzer CA 210 probe should be within 10cm and perpendicular of the module surf...

Page 20: ... signal OK N Replace Power Board Check Q2302 application circuit Or replace Q2302 N Replace Cable N Y 2 No OSD Trouble Shooting guide Check P2301All Voltage Level 3 5V 12V 24V Y N Check IC8701 RESETand UPDATE pin Y Check X8700 Clock 32 768kHz Y Check IC8701 IIC Communication status Y Check IR input state of IC8701 57pin Y Re download PTC Micom Check power connector and RL_ON signal OK N Replace Po...

Page 21: ... L8906 Y Check IC2304 N Replace IC2304 N Y First of all Check whether all of cables between board is inserted properly or not Main B D Power B D LVDS Cable Speaker Cable IR B D Cable 4 Digital RF Trouble Shooting guide Check RF cable signal Check tuner 3 3V power L8901 Check tuner 1 8V power L8903 Check tuner 5V power L8906 Y Check IIC Signal TU8900 Pin 4 12 Y Check IF Signal TU8900 Pin 6 14 Y Che...

Page 22: ...le for damage For damage or open conductor Y Check JK3402 Can you see the normal waveform Y Check the input of LG1311 IC101 Measure waveform at C3404 because it s more easy to check Can you see the normal waveform Y or N This board has big problem because Main chip LG1311 IC101 have some troubles After checking thoroughly all path once again You should decide to replace Main IC or not Replace JK34...

Page 23: ...1 IC101 Measure waveform at AR3200 AR3201 AR3202 because it s more easy to check Can you see the normal waveform Y or N This board has big problem because Main chip LG1311 IC101 have some troubles After checking thoroughly all path once again You should decide to replace Main IC or not Replace JK3200 JK3202 N Re download HDCP Key N 7 Analog RF Audio Trouble Shooting guide Check RF cable signal Che...

Page 24: ...ard has big problem because Main chip LG1311 IC101 have some troubles After checking thoroughly all path once again You should decide to replace Main IC or not Replace JK3200 JK3202 JK3203 N Re download HDCP Key N 9 HDMI Audio in Trouble Shooting guide Check input signal format Is it supported Y CheckAC cable for damage For damage or open conductor Y Check JK3200 JK3202 JK3203 Can you see the norm...

Page 25: ...age or open conductor Y CheckAMP IC8602 DC DC IC9502 IC Power 12V Y Check the input of LG1311 IC105 Measure waveform at C300 or C8622 because it s more easy to check Can you see the normal waveform Y This board has big problem because Main chip LG1311 IC101 have some troubles After checking thoroughly all path once again You should decide to replace Main IC or not ReplaceAMP or DC DC N CheckAudioA...

Page 26: ... PHY Chip UART Ext Speaker R L L R OUT Service CPU Upgrade MICOM Internal Demod IR Key Tx Rx UART S W Service Only MICOM Upgrade Tx Rx Composite Audio L R Composite Magic WOL Realtek WOL To MICOM USB Side USB2 Side HDMI2 Wi Fi Combo Side USB1 SPDIF Speaker Audio AMP EMMC 4GB HDCP CVBS I2C TS_MUX Pro idiom CVBS DIF SIF SPDIF Serial Serial IC101 M14 RF b LAN Demod IF Data_TS MPI SPI Game Control MPI...

Page 27: ...parts in this chassis have special safety related characteristics These parts are identified by in the Schematic Diagram and EXPLODED VIEW It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent Shock Fire or other Hazards Do not modify the original design without permission of manufacturer IMPORTANT SAFETY NOTICE 350 Opt...

Page 28: ...2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC R184 10K R182 OPT R183 10K R185 10K IC101 LG1311 XIN_MAIN B23 XO_MAIN A23 PORES_N AG21 BOOT_MODE AJ18 PLLSET0 AB8 PLLSET1 AC8 OPM0 AD8 OPM1 AE8 L_VSOUT_LD TRST0_N Y7 DIM0_SCLK TMS0 Y6 DIM1_SCLK TCK0 W7 DIM1_MOSI TDI0 W6 DIM0_MOSI TDO0 W5 SPI_CS0 AG30 SPI_SCLK0 AG28 SPI_DO0 AG29 SPI_DI0 TRST1_N AH29 SPI_CS1 TMS1 AJ27 SPI_SCLK1 TCK1 AH27 SPI_DO1 TDO1 AG26 SPI...

Page 29: ...I_DATA1 B27 TPI_DATA2 C27 TPI_DATA3 B26 TPI_DATA4 C26 TPI_DATA5 B25 TPI_DATA6 A25 TPI_DATA7 C25 GPIO31 AG13 GPIO30 AJ19 GPIO29 AG14 GPIO28 AG15 GPIO27 AJ15 GPIO26 AH19 GPIO25 AH18 GPIO24 AG19 GPIO23 AH5 GPIO22 AJ5 GPIO21 AJ6 GPIO20 AH6 GPIO19 AG6 GPIO18 AG5 GPIO17 AF7 GPIO16 AG7 GPIO15 AG24 GPIO14 AH16 GPIO13 V29 GPIO12 AJ21 GPIO11 AH21 GPIO10 V28 GPIO9 AG16 GPIO8 AJ24 GPIO7 AH17 GPIO6 AG17 GPIO5 ...

Page 30: ...UDA_SCART_OUTR AL16 AUAD_L_CH1_IN AL19 AUAD_R_CH1_IN AK19 AUAD_L_CH2_IN AN19 AUAD_R_CH2_IN AM19 AUAD_L_CH3_IN AN17 AUAD_R_CH3_IN AM17 AUAD_L_CH4_IN AL17 AUAD_R_CH4_IN AK17 AUDA_OUTL AK20 AUDA_OUTR AL20 AUAD_L_REF AK18 AUAD_R_REF AL18 AUD_VBG_EXT AN15 IEC958OUT AM15 AUDCLK_OUT AN11 DAC_LRCH AK11 DAC_SLRCH AK10 DAC_CLFCH AL10 DAC_SCK AL11 DAC_LRCK AM11 PCMI3LRCH AD5 PCMI3LRCK AE5 PCMI3SCK AE7 AUDCLK...

Page 31: ...DR_DQ18 M0_DDR_DM2 M0_DDR_BA0 M0_DDR_DQS_N2 M0_D_CLK M0_DDR_BA1 R408 1K 1 M0_DDR_A11 M0_DDR_BA1 1 5V_DDR M0_U_CLKN M0_U_CLK M0_DDR_DQS3 M0_DDR_A5 M0_DDR_BA1 M0_1_DDR_VREFDQ M0_DDR_WEN R406 1K 1 M0_DDR_DQ7 M0_DDR_RESET_N M0_DDR_A10 M0_DDR_DQ3 M0_DDR_A1 M0_U_CLKN M0_DDR_A11 M0_DDR_DM1 VREF_M0_1 M0_DDR_DM3 R405 100 M0_DDR_DQS_N0 M0_DDR_BA2 M0_DDR_A9 M0_DDR_A0 M0_DDR_A2 M0_DDR_BA0 M0_DDR_DQ17 R404 10K...

Page 32: ...5 E IC501 1 DDR_512MB_MICRON A0 N3 A1 P7 A2 P3 A3 N2 A4 P8 A5 P2 A6 R8 A7 R2 A8 T8 A9 R3 A10 AP L7 A11 R7 A12 BC N7 A13 T3 NC_5 M7 BA0 M2 BA1 N8 BA2 M3 CK J7 CK K7 CKE K9 CS L2 ODT K1 RAS J3 CAS K3 WE L3 RESET T2 DQSL F3 DQSL G3 DQSU C7 DQSU B7 DML E7 DMU D3 DQ0 E3 DQ1 F7 DQ2 F2 DQ3 F8 DQ4 H3 DQ5 H8 DQ6 G2 DQ7 H7 DQ8 D7 DQ9 C3 DQ10 C8 DQ11 C2 DQ12 A7 DQ13 A2 DQ14 B8 DQ15 A3 VREFCA M8 VREFDQ H1 ZQ ...

Page 33: ...C4TX_2 W12 AVDD11_C4TX_3 Y12 AVDD11_C4TX_4 AA12 DVDD11_XTAL G18 DVDD11_DR3PLL H18 DVDD11_CVBSPLL AF23 AVDD11_DMD_1 AF24 AVDD11_DMD_2 AF25 DVDD18_EMMC_1 L26 DVDD18_EMMC_2 M26 IC101 LG1311 GND_1 B22 GND_2 B24 GND_3 C22 GND_4 C23 GND_5 C24 GND_6 D4 GND_7 D5 GND_8 D6 GND_9 D20 GND_10 D21 GND_11 E6 GND_12 E20 GND_13 E21 GND_14 F6 GND_15 F7 GND_16 F8 GND_17 F18 GND_18 F19 GND_19 F20 GND_20 F21 GND_21 G7...

Page 34: ...0V R2329 8 2K 1 16W 1 1 5V_DCDC_RHOM C2339 10uF 10V R2324 10K C2330 0 0068uF 50V 3 5V_ST C2344 1 4700pF 50V 1 5V_DCDC_TI R2350 100 C2356 2 0 1uF 50V P_DET_BOTH_12_24V R2337 100K L2308 C2334 2200pF 50V C2351 22uF 10V R2342 10K R2328 1 1 5K 1 P_DET_BOTH_12_24V R2325 2 7K 1 P_DET_ONLY_12V R2336 100K P_DET_BOTH_12_3 5V C2345 22uF 10V R2325 2 2 7K 1 P_DET_BOTH_12_24V C2344 2700pF 50V 1 5V_DCDC_RHOM R23...

Page 35: ...DMI_EXT_EDID AR3204 47K 1 16W DDC_SCL_1 DDC_SDA_1 3 5V_ST Q3204 MMBT3904 NXP HDMI_EXT_EDID E B C 5V_NORMAL IC3202 M24C02 RMN6T HDMI_EXT_EDID_ST 3 E2 2 E1 4 VSS 1 E0 5 SDA 6 SCL 7 WC 8 VCC IC3202 1 AT24C02C SSHM T HDMI_EXT_EDID_ATMEL 3 A2 2 A1 4 GND 1 A0 5 SDA 6 SCL 7 WP 8 VCC R3268 10K HDMI_EXT_EDID R3267 10K HDMI_EXT_EDID 5V_HDMI_2 IC3203 M24C02 RMN6T HDMI_EXT_EDID_ST 3 E2 2 E1 4 VSS 1 E0 5 SDA 6...

Page 36: ... 6V SPDIF_OUT R3801 1K VA3402 5 6V R3406 10K 3 3V_NORMAL 3 3V_NORMAL C3402 47pF 50V JK3401 JST1223 001 1 GND 2 VCC 3 VINPUT 4 FIX_POLE VA3406 5 5V COMP1 AV1 DVI_L_IN VA3401 5 6V C3404 0 047uF AV1_CVBS_IN_SOC R3402 100 C3403 150pF OPT R3400 75 3216 JK3402 PPJ233 04 4A RD O SPRING 5A RD E LUG 3A RD CONTACT 4B WH O SPRING 5C YL E LUG 4C YL O SPRING 3C YL CONTACT 25 9 SPDIF OUT AV REAR Place JACK Side...

Page 37: ...VDD 3 5V_ST SOC_RX_PTC R3815 10K R3805 100 C3805 0 1uF PTC_TX RESET_HIGH 3 5V_ST SOC_TX_PTC UART3_TX UART3_RX R3804 100 Q3801 MMBT3904 NXP E B C C3806 0 47uF OPT R3806 100 JK3801 PEJ027 04 6B T_TERMINAL2 7B B_TERMINAL2 5 T_SPRING 4 R_SPRING 7A B_TERMINAL1 6A T_TERMINAL1 3 E_SPRING C3812 1000pF 50V OPT C3811 1000pF 50V OPT SOC_RX SOC_TX R3813 100 R3812 100 ZD3802 3 6V ZD3801 3 6V R3817 10K OPT R381...

Page 38: ...FI_DP C4016 5pF 50V OPT EYE_SCL R4002 100 3 5V_ST C4004 0 1uF 16V C4005 0 1uF 16V D4000 RCLAMP0502BA WIFI_DMDP_ESD R4001 100 IR 3 5V_ST R4011 100 3 5V_WOL R4009 10K C4015 5pF 50V OPT WIFI_DM R4006 100 WOL WIFI_POWER_ON C4003 0 1uF 16V OPT R4023 10 R4024 10 R4005 3 3K C4017 0 1uF IC4001 AP2191WG 7 3 FLG 2 GND 4 EN 1 OUT 5 IN P4000 SMAW200 H18S5 14 KEY2 9 SDA 4 USB_DM 18 GND 13 GND 8 GND 3 BT_RESET ...

Page 39: ..._USB_2 USB_DP2 JK4302 3AU04S 305 ZC LG 1 2 3 4 5 ZD4301 5V USB_ESD_SD05 C4322 10uF 10V C4323 22uF 10V D4301 1 RCLAMP0502BA USB_ESD_0502BA D4301 RCLAMP0582B USB_ESD_0582B USB_DM3 ZD4300 5V USB_ESD_SD05 C4300 10uF 10V D4300 1 RCLAMP0502BA USB_ESD_0502BA C4301 22uF 10V D4300 RCLAMP0582B USB_ESD_0582B USB_DP3 JK4300 3AU04S 305 ZC LG 1 2 3 4 5 5V_USB_3 2014 05 12 USB 12 MAX 1 5A USB1 Side 25 LY770M UA ...

Page 40: ...V C5615 1uF 10V R5607 4 7K R5603 3 3 1 10W C5602 1uF 10V SPK_R AMP_RESET_N C5612 390pF 50V 0 1uF C5618 50V I2C_SCL1 C5609 22000pF 50V AUD_SCK C5608 22000pF 50V L5605 NRS6045T100MMGK 10 0uH C5611 390pF 50V C5601 1uF 10V C5605 22000pF 50V L5603 NRS6045T100MMGK 10 0uH SPK_R SPK_L C5623 33pF 50V SPK_L AUD_LRCH C5600 1000pF 50V AMP_MUTE_MICOM 0 1uF C5603 16V 3 3V_NORMAL R5602 100 AMP_MUTE_MICOM 24V_AMP...

Page 41: ...D 12 RA0N 13 RA0P 14 RA1N 15 RA1P 16 RA2N 17 RA2P 18 GND 19 RACLKN 20 RACLKP 21 GND 22 RA3N 23 RA3P 24 RA4N 25 RA4P 26 GND 27 BIT_SEL 28 RB0N 29 RB0P 30 RB1N 31 RB1P 32 RB2N 33 RB2P 34 GND 35 RBCLKN 36 RBCLKP 37 GND 38 RB3N 39 RB3P 40 RB4N 41 RB4P 42 GND 43 GND 44 GND 45 GND 46 GND 47 NC 48 VLCD 49 VLCD 50 VLCD 51 VLCD 52 GND 2D 3D_CTL TXA3N TX7N TXB1N TX4N TXB1P TX4P TXB4P TX0P TXB2N TX3N PANEL_V...

Page 42: ...PARTS BE USED FOR THE CRITICAL COMPONENTS IN THE SYMBOL MARK OF THE SCHEMETIC I2C_SDA2 R7401 10K L DIM_OUT_8P L DIM0_VS I2C_SCL2 P7400 12507WR 08L L DIM_OUT_8P 1 2 3 4 5 6 7 8 9 L DIM0_MOSI L DIM0_SCLK AR7400 33 1 16W L DIM_OUT_8P LOCAL DIMMING To LED DRIVER 15 LOCAL DIMMING 26 2014 05 12 LY770M UA Copyright 2014 LG Electronics Inc All rights reserved Only for training and service purposes LGE Int...

Page 43: ..._70 K13 NC_71 K14 NC_72 L1 NC_73 L2 NC_74 L3 NC_75 L12 NC_76 L13 NC_77 L14 NC_78 M1 NC_79 M2 NC_80 M3 NC_81 M7 NC_82 M8 NC_83 M9 NC_84 M10 NC_85 M11 NC_86 M12 NC_87 M13 NC_88 M14 NC_89 N1 NC_90 N3 NC_91 N6 NC_92 N7 NC_93 N8 NC_94 N9 NC_95 N10 NC_96 N11 NC_97 N12 NC_98 N13 NC_99 N14 NC_100 P1 NC_101 P2 NC_102 P8 NC_103 P9 NC_104 P11 NC_105 P12 NC_106 P13 NC_107 P14 IC8100 3 THGBMAG7A2JBAIR EMMC4 5_...

Page 44: ...211 1K OPT R8205 100 OPT R8206 100 OPT LD8200 3 3V_3305 C8211 0 22uF R8208 470 R8217 R8207 100 3305_IF_AGC C8206 0 01uF IC8200 LGDT3305 1 NC_1 2 VINA2 3 VINA1 4 INCAP 5 VSSAAD10A 6 I2CSEL 7 ANTCON 8 VDD_1 9 I2CRPT_SCL 10 I2CRPT_SDA 11 IFOUT 12 RFOUT 13 TPERR 14 VDD33_1 15 TPVALID 16 TPDATA 0 17 VSS33_1 18 TPDATA 1 19 TPDATA 2 20 TPDATA 3 21 TPDATA 4 22 TPDATA 5 23 TPDATA 6 24 TPDATA 7 25 TPCLK 26 ...

Page 45: ...NHUB_ENDEFER GYSPD C8440 27pF 50V C8441 27pF 50V R8440 100 Realtek WOL L8408 1 UBW2012 121F SHENCHEN_NEW L8401 BLM18PG121SN1D R8427 Realtek WOL 22 IC8401 RTL8305N_REALTEK 1 AVDD18_1 2 TXON 1 3 TXOP 1 4 RXIP 1 5 RXIN 1 6 AVDD18_2 7 RXIN 2 8 RXIP 2 9 TXOP 2 10 TXON 2 11 TXON 3 12 TXOP 3 13 RXIP 3 14 RXIN 3 15 TXOP 4 16 TXON 4 17 AVDD18_3 18 DVDD18_1 19 RXIP 4 20 RXIN 4 21 AVDD18_4 22 DVDD18_2 23 DVD...

Page 46: ... T_SPRING 4 R_SPRING 3 E_SPRING C8614 1uF OPT 10V EXT_OUT_L EXT_OUT_R R8613 1K EXT_SPK_DET R8615 10K R8614 10K 3 5V_ST R8617 10K PILLOW_AUDIO_OUT 002 N8 PILLOW_OUT R8628 10K OPT C8623 0 1uF C8634 0 47uF 25V L8605 PILLOW_AMP_ 24V C8619 1uF 25V R8625 10K OPT L8608 22 0uH C8629 0 1uF 50V C8631 10uF 35V 12V C8633 0 47uF 25V C8625 0 1uF 50V L8607 22 0uH R8626 4 7K C8628 0 1uF 50V R8627 4 7K C8621 10uF ...

Page 47: ...MOUT 56 P7 3 TA1 2 57 P8 0 TA0 0 58 P8 1 TA0 1 59 P8 2 TA0 2 60 P8 3 TA0 3 61 P8 4 TA0 4 62 VCORE 63 DVSS2 64 DVCC2 65 P8 5 TA1 0 66 P8 6 TA1 1 67 P8 7 68 P9 0 UCB2STE UCA2CLK 69 P9 1 UCB2SIMO UCB2SDA 70 P9 2 UCB2SOMI UCB2SCL 71 P9 3 UCB2CLK UCA2STE 72 P9 4 UCA2TXD UCA2SIMO 73 P9 5 UCA2RXDUCA2SOMI 74 P9 6 75 P9 7 76 P10 0 UCB3STE UCA3CLK 77 P10 1 UCB3SIMO UCB3SDA 78 P10 2 UCB3SOMI UCB3SCL 79 P10 3...

Page 48: ...T Q8802 2SC3052 E B C C8821 1uF 25V C8817 100pF 50V OPT D8807 SMAB34 R8820 56K 1 Pillow_POWER_MANAGE 022 J21 022 AF17 3 5V_ST R8822 2 2K OPT C8811 0 1uF 16V OPT C8820 22uF 16V R8821 18K 1 DC_DC_EN 022 R17 R8819 100K 1 C8813 0 1uF 16V 12V_ST C8812 10uF 10V Q8803 AO3407A Pillow_OLD G D S R8818 10K DC_DC_ON_ST R8815 22K OPT R8816 47K IC8801 TPS61087DRC 3 EN 2 FB 4 AGND 1 COMP 5 PGND 6 SW_1 7 SW_2 8 I...

Page 49: ...16V MAIN_IF_AGC MAIN_NDIF MAIN_PDIF 1 8V_TU 3 3V_TU C8928 10uF 10V C8929 0 1uF 16V 1 23V_TU R8957 10K 1 R8954 10K R8956 11K 1 C8937 10uF 16V R8955 20K 1 IC8901 AP2132MP 2 5TRG1 3 VIN 2 EN 4 VCTRL 1 PG 5 NC 6 VOUT 7 ADJ 8 GND 9 EP C8940 10uF 16V 3 3V_TU_IN C8939 1uF 0 1uF C8938 5V_NORMAL 5V_TU C8935 22uF 10V 5V_NORMAL C8934 22uF 10V C8933 0 1uF 16V C8936 0 1uF 16V C8925 100pF 50V SUB_IF_AGC SUB_IF_...

Page 50: ...9 1 R9041 49 9 1 C9021 0 1uF 16V R9039 49 9 1 R9040 49 9 1 ETNHUB_EPHY_TXOP1 ETNHUB_EPHY_RXIN1 ETNHUB_EPHY_TXON1 ETNHUB_EPHY_RXIP1 L9002 BLM18PG121SN1D C9015 0 1uF ETNHUB_AVDD18 LAN_DVDD33 L9001 BLM18PG121SN1D 3 5V_ST_LAN R9026 4 7K R9027 4 7K R9032 4 7K R9025 4 7K R9038 4 7K R9012 4 7K R9001 4 7K TP9000 LAN_AVDD33 LAN_DVDD33 LAN_DVDD33 LAN_AVDD33 LAN_DVDD33 LAN_DVDD33 LAN_DVDD33 LAN_DVDD33 LAN_DV...

Page 51: ...3 B15 IO2_1 A15 IO2_2 B14 IO2_3 C13 IO2_4 B13 IO2_5 A13 IO2_6 B12 IO2_7 A2 IO2_47 E12 IO2_9 E11 IO2_10 E9 IO2_11 D12 IO2_12 D11 IO2_13 B3 IO2_46 B11 IO2_15 A11 IO2_16 D10 IO2_19 A9 IO2_20 D9 IO2_22 C4 IO2_45 E10 IO2_24 B4 IO2_44 D8 IO2_26 E8 IO2_27 A8 IO2_28 D7 IO2_30 A4 IO2_43 B7 IO2_32 A6 IO2_33 E7 IO2_34 P12 IO4_41 CH_DATA 7 P11 IO4_35 CH_DATA 6 P10 IO4_33 CH_DATA 5 P9 IO4_28 CH DATA 4 P8 IO4_2...

Page 52: ... 2 6 1 5 3 4 7 8 R9520 3K R9506 200 R9531 33 R9510 200 1 10W 5 12VD R9514 200 P_CH_UP 022 B24 GND R9532 33 C9507 10uF 16V D9501 100V 1N4148W R9542 1K 1 10W 5 R9518 10K IC9504 PC17L1 5V 35V 4P 2 1 3 4 R9521 3K R9513 200 L9500 12VD R9507 1K 1 4W 1 D9500 100V 1N4148W R9524 33 Q9500 2SC3875S ALY E B C IC9505 PC17L1 5V 35V 4P 2 1 3 4 PILLOW_CTL_0 5VD 023 H3 023 L1 023 P11 023 P8 5VD 023 D1 023 H3 023 L...

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