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Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes

LGE Internal Use Only

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EXT1/2

AT

/N

T

TUNER

X260

TP A

TP C

RGB

COMP 1/2

SIF

SIF IN 1

NTP

3000

SIF IN 2

I2S IN 1

I2S IN 2

I2S OUT 1

SPDIF

HDMI 1/2/3

L/R

L/R

I2S

I2S

I2S

I2S

I2S

I2S

I2SO 1

ANT/Cable

MCLK

MCLK

I2SI 3

SC 2

L/R

L/R

MNT

OUT

S/PDIF

S/PDIF OUT

Optical

Coaxial

TP

OUTPUT SPDIF

CS8416

MSP4450K

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Содержание 47LY3DE Series

Страница 1: ...LCD TV SERVICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL CHASSIS LB75B MODEL 47LY3DE 47LY3DE AA website http biz LGservice com Internal Use Only ...

Страница 2: ...ght reserved Only for training and service purposes LGE Internal Use Only 2 CONTENTS CONTENTS 2 PRODUCT SAFETY 3 SPECIFICATION 6 ADJUSTMENT INSTRUCTION 12 TROUBLE SHOOTING BLOCK DIAGRAM 17 EXPLODED VIEW 43 REPLACEMENT PARTS LIST 45 SVC SHEET ...

Страница 3: ...fe 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 metallic parts such as antenna term...

Страница 4: ...e on your body by touching a known earth ground Alternatively obtain and wear a commercially available discharging 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 electrostatic charg...

Страница 5: ...the 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 replac...

Страница 6: ...2LY3DE LC470WU6 SLA2 47LY3DE 8 Operating Environment 1 Temp 0 40 deg 2 Humidity 80 9 Storage Environment 1 Temp 20 60 deg 2 Humidity 85 1 Application Range This spec sheet is applied to the 42 47 LCD TV used LB75B chassis 2 Specification Each part is tested as below without special appointment 2 1 Temperature 25 5 C 77 9 F CST 40 5 C 2 2 Relative Humidity 65 10 2 3 Power Voltage Standard input vol...

Страница 7: ...s uniformity 80 Full white 4 Color coordinate RED X Typ 0 638 Typ Y 0 03 0 340 0 03 GREEN X 0 279 Y 0 611 BLUE X 0 146 Y 0 062 WHITE X 0 272 Y 0 278 5 Color coordinate uniformity N A 6 Contrast ratio 600 1 800 1 42 47LY3DE 1100 1 1600 1 With A I 42 47LY3DE 7 Color Temperature Cool 11 000 12 000 13 000 Test Condition Medium 9 300 HDMI input Warm 6 500 85 Full white pattern 8 Color Distortion DG 10 ...

Страница 8: ...ree measure the same condition in video signal RGB signal Average Brightness measure specification 1 Impress 100 255Gray Level full white pattern at the same peak brightness measurement 2 Measure average brightness in 9 points Contrast ratio measure specification 1 Test display signal 30x30 dots White Window signal all Black Raster signal 2 Dark room measure condition Using touch type Color analyz...

Страница 9: ... 768 47 13 59 65 72 00 X 12 1280 1024 63 981 60 020 108 000 VESA SXGA O 13 1280 1024 79 976 75 025 135 000 VESA SXGA O 14 1600 1200 75 000 60 000 162 000 VESA UXGA O 15 1920 1080 67 500 60 000 148 500 HDTV 1080P O No Resolution H freq kHz V freq Hz Pixel clock MHz Remark 1 720 576 15 625 50 00 13 50 SDTV576i 2 720 576 31 25 50 00 27 00 SDTV576p 3 720 480 15 73 15 75 59 94 60 00 13 50 SDTV 480i 4 7...

Страница 10: ...SA WXGA X 10 1360 768 47 712 60 015 85 500 VESA WXGA O 11 1366 768 47 13 59 65 72 00 X 12 1280 1024 63 981 60 020 108 000 VESA SXGA O 13 1280 1024 79 976 75 025 135 000 VESA SXGA O 14 1600 1200 75 000 60 000 162 000 VESA UXGA O 15 1920 1080 67 500 60 000 148 500 HDTV 1080P O DTV 1 720 576 31 25 50 00 27 00 SDTV576p 2 720 480 31 47 31 50 59 94 60 00 27 00 SDTV 480p 3 1280 720 44 96 45 00 59 94 60 0...

Страница 11: ...WU5 SLA1 No Item Specification Unit Remark 1 Active Screen Size 46 96 inches 1192 87mm 2 Outline dimension 1096 0 H x640 0 V x51 D Typ mm 3 Pixel Pitch 0 5415x0 5415x RGB mm 4 Pixel Format 1920 horiz by 1080 vert RGB Stripe arrangement 5 Color Depth 8 bit 16 7M Color 6 Luminance White 500 cd m2 kg 7 Power Consumption Total 230 2 Watt 8 Weight 14 5Kg 9 Display Operating Mode Transmissive Mode Norma...

Страница 12: ...ou keep the still screen on for more than 20 minutes Especially for internal Digital pattern 13 CH Cross Hatch Pattern 09CH with higher black white contrast be careful not to create residual image on the black level part 3 Board adjustment Adjust MST3361 Set Adjust Video Set Adjust White Balance 4 EDID The Extended Display Identification Data DDC Display Data Channel Download 4 1 Introduction This...

Страница 13: ...0 00 1E 01 1D 80 30 18 71 1C 16 20 58 2C 25 00 C4 8E 21 00 00 9E 8C 40 0A D0 90 20 40 31 20 0C 40 55 00 4C 6C 42 00 00 50 18 01 1D 00 BC 52 D0 1E 20 B8 28 55 40 4C 6C 42 60 00 00 1E 01 1D 80 D0 72 1C 16 20 10 2C 25 80 4C 70 6C 42 00 00 9E 00 00 00 00 00 00 00 00 00 00 CD 0 1 2 3 4 5 6 7 8 9 A B C D E F 0 00 FF FF FF FF FF FF 00 1E 6D 01 00 01 01 01 01 10 0E 11 01 03 18 73 41 96 0A CF 74 A3 57 4C B...

Страница 14: ...mode 3 When the automatic adjustment is completed the message AV PAL Configuration Success is displayed If the adjustment is failed the message AV PAL Configuration Fail is displayed 6 MST3361M Set Adjustment 6 1 Synopsis The Component 480i 1080p RGB 1080p adjustment sets the optimal black level and gain automatically from the analog digital converter and is the function to correct the RGB deviati...

Страница 15: ...ance adjustment coordinate shown below B Automatic adjuster Necessary for automatic adjustment must be able to communicate with RS 232C Baud Rate 115200 C Video Signal Generator MSPG 925F 720p 216Gray Model 217 Pattern 78 7 2 Measuring device connection diagram for automatic adjustment Connection diagram for internal pattern Connection diagram for HDMI input 7 3 White Balance adjustment method Whe...

Страница 16: ...attern E Adjustment is done in three white balance of COOL MEDIUM and WARM F When white balance is Cool Set to B Gain 192 and set to R Cut G Cut B Cut 64 Make High Light adjustment using R Gain G Gain When white balance is Medium Set to R Gain 192 and set to R Cut G Cut B Cut 64 Make High Light adjustment using G Gain B Gain When white balance is Warm Set to R Gain 192 and set to R Cut G Cut B Cut...

Страница 17: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 17 TROUBLESHOOTING BLOCK DIAGRAM ...

Страница 18: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 18 ...

Страница 19: ...M75 ICL3232CBNZ ICL3232CBNZ 5 0VST 5 0VST 3 3V_L 3 3V_L AT NT Tuner AT NT Tuner 5V 1 2V 1 8V 1 8V 3 3V_L 12 0V Live on 3 3VST_MICOM 9 0V 9 0V _L 5 0V SI3865 SI3865 PQ05DZ1U PQ05DZ1U Live Dead 19 0V NTP3000 KIA78R09 SC1565 2 5 MST3369 24C08 AZ1117H 3 3 KIA7805 AZ1085S 3 3 BA033FP 3 3 MTV416 24C16 AZ1085S 1 8 TEA6420 FRC94XYH STMAV335 MIC2505 ISL6549CB SC1565 1 8 MIC3910 2 5 ISL6549CB THC63LVD1023 N...

Страница 20: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 20 ...

Страница 21: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 21 ...

Страница 22: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 22 ...

Страница 23: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 23 ...

Страница 24: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 24 ...

Страница 25: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 25 ...

Страница 26: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 26 ...

Страница 27: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 27 ...

Страница 28: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 28 ...

Страница 29: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 29 ...

Страница 30: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 30 ...

Страница 31: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 31 ...

Страница 32: ... LGE Internal Use Only 32 EXT1 2 AT NT TUNER X260 TP A HDMI 1 2 3 TP C RGB COMP 1 2 SIF L R L R I2S I2S I2S I2S I2S I2S I2SO 1 ANT Cable MCLK MCLK I2SI 3 SC 2 L R L R S PDIF SPDIF S PDIF OUT Optical Coaxial TP SIF IN 1 NTP 3000 SIF IN 2 I2S IN 1 I2S IN 2 I2S OUT 1 OUTPUT SPDIF CS8416 MSP4450K ...

Страница 33: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 33 ...

Страница 34: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 34 ...

Страница 35: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 35 ...

Страница 36: ...s LGE Internal Use Only 36 EXT1 2 MSP4450K AT NT TUNER X260 TP A HDMI 1 2 3 TP C RGB COMP 1 2 SIF I2SO 1 ANT Cable MCLK I2SO 3 SC2 L R I2S I2S I2S I2S TP I2S I2S L R L R MNT OUT SPDIF OUT S PDIF Opti cal Coaxial SIF IN 1 NTP 3000 SIF IN 2 I2S IN 1 I2S IN 2 I2S OUT 1 OUTPUT SPDIF SPDIF CS8416 ...

Страница 37: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 37 ...

Страница 38: ... Internal Use Only 38 EXT1 2 AT NT TUNER X260 TP A TP C RGB COMP 1 2 SIF SIF IN 1 NTP 3000 SIF IN 2 I2S IN 1 I2S IN 2 I2S OUT 1 SPDIF HDMI 1 2 3 L R L R I2S I2S I2S I2S I2S I2S I2SO 1 ANT Cable MCLK MCLK I2SI 3 SC 2 L R L R MNT OUT S PDIF S PDIF OUT Optical Coaxial TP OUTPUT SPDIF CS8416 MSP4450K ...

Страница 39: ...Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only 39 ...

Страница 40: ... Internal Use Only 40 EXT1 2 AT NT TUNER X260 TP A TP C RGB COMP 1 2 SIF SIF IN 1 NTP 3000 SIF IN 2 I2S IN 1 I2S IN 2 I2S OUT 1 SPDIF HDMI 1 2 3 L R L R I2S I2S I2S I2S I2S I2S I2SO 1 ANT Cable MCLK MCLK I2SI 3 SC 2 L R L R S PDIF S PDIF OUT Optical Coaxial TP OUTPUT SPDIF CS8416 MSP4450K MNT OUT ...

Страница 41: ...ses LGE Internal Use Only 41 Check HDMI Cable Check MST3361 IC402 output HDMI_SPDIF R409 Check CS8416 IC501 inputs HDMI_SPDIF C5005 Check CS8416 IC501 outputs DATA 26 SCLK 27 LRCLK 28 Check X260 IC101 Inputs SCLK R175 LRCLK R176 DATA R177 Follow the procedure of COMMON SOUND OUT 1 2 3 4 5 ...

Страница 42: ...ower adaptor Check VBUS_5V Check the DC DC Converter IC712 N Y Y N N 2 Check Sequence Replace the cable to USB1 1 cable or Replace the device Y N Replace the DC DC Converter IC712 Exception USB power could be disabled by inrushing current In this case remove the device and try to reboot the TV AC power off on X260 USB_ link IC101 DC DC Converter IC712 J A C K Side B D USB1 1_OVRCUR 5V_USB VBUS_5V ...

Страница 43: ...ll right reserved Only for training and service purposes LGE Internal Use Only 43 EXPLODED VIEW 300 121 120 810 510 500 810 700 520 200 803 804 801 LV1 A2 802 805 806 807 550 840 808 900 910 540 530 560 830 820 400 850 A21 200T 200N ...

Страница 44: ...O 1 VIN 5 0V 5 1K R4020 10K R4021 3 3V_MST KRC104S Q406 E B C 4 7K R497 3 3V_MST 3 3VST_MICOM 0 R4061 CEC_BYPASS 3 3V_MST 3 3V_MST 1K R439 3 6V ZD415 3 6V ZD405 3 6V ZD406 1K R474 1K R4071 1K R4076 5 6B ZD418 KCN DS 1 0089 JK405 LCD 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 0 1uF C492 4 7K R4015 VR401 HDMICEC 004 I7 004 J2 TMDS1_RXC HDMI_POWER1 001 A2 2SC3875S Q403 E B C TMDS1_RX1 4 7K R4014 5 0V KRC...

Страница 45: ...60_ALE1 002 D7 MEM_QSA0 002 A3 0 1uF C2197 33 R132 CORE_1 2V MEM_ODTA 002 A3 002 D3 VI_AVDD VDDR_MEM 0 1uF C2141 0 1uF C2148 EXT_IN_B 2 9 004 D2 3 3V_L 0 1uF C2202 VPVDD12 0 1uF C2151 PMIVDD SDA_CH1 0 1uF C2225 X260_OUT_EN 006 D4 008 A7 SDA_CH2 X260_OUT_B 0 9 MPVDD 0 1uF C2170 0 1uF C2137 MEM_DQMA1 002 A3 DAC2_AVDD 0 1uF C2172 0 1uF C2196 0 1uF C2213 0 1uF C2210 3 3V_L X260_OUT_VSYNC 006 D4 008 A7...

Страница 46: ...Oct 2007 Printed in Korea P NO MFL40360705 ...

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