LG 43LX340H Скачать руководство пользователя страница 1 | Manualshive

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P/NO : MFL69152121 (1701-REV01)

CHASSIS : LA5CB

MODEL : 43LX340H

43LX340H-U*

CAUTION

BEFORE SERVICING THE CHASSIS,

READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

Internal Use Only

LED TV

SERVICE MANUAL

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Содержание 43LX340H

Страница 1: ...P NO MFL69152121 1701 REV01 CHASSIS LA5CB MODEL 43LX340H 43LX340H U CAUTION BEFORE SERVICING THE CHASSIS READ THE SAFETY PRECAUTIONS IN THIS MANUAL Internal Use Only LED TV SERVICE MANUAL ...

Страница 2: ...t LG Electronics Inc All rights reserved Only for training and service purposes CONTENTS CONTENTS 2 SAFETY PRECAUTIONS 3 SERVICING PRECAUTIONS 4 SPECIFICATION 6 USB DOWNLOAD 9 TROUBLESHOOTING GUIDE 10 BLOCK DIAGRAM 16 EXPLODED VIEW 17 ...

Страница 3: ...o 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 metallic par...

Страница 4: ...lectrostatic charge on your body by touching a known earth ground Alter natively obtain and wear a commercially available discharging wrist strap device which should be removed to prevent poten tial 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...

Страница 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...

Страница 6: ...ion EMC CE IEC specification 4 General Specification No Item Specification Result Remark 1 Receiving System ATSC NTSC M 64 256 QAM 2 Available Channel 1 VHF 02 13 2 UHF 14 69 3 DTV 02 69 4 CATV 01 135 5 CADTV 01 135 3 Input Voltage AC 100 240V 50 60Hz Mark 110V 60Hz N America 4 Market NORTH AMERICA 5 Screen Size 60 65 inch Wide 1920 1080 FHD 120Hz All models without HD models 42 43 49 55 inch Wide...

Страница 7: ...9 1920 1080 67 50 60 00 148 5 HDTV 1080P O 5 2 Component input Y CB PB CR PR No Resolution H freq kHz V freq Hz Pixel clock MHz Proposed Remark 1 720 480 15 73 60 00 13 513 SDTV DVD 480I 2 720 480 15 73 59 94 13 500 SDTV DVD 480I 3 720 480 31 50 60 00 27 027 SDTV 480P 4 720 480 31 47 59 94 27 000 SDTV 480P 5 1280 720 45 00 60 00 74 250 HDTV 720P 6 1280 720 44 96 59 94 74 176 HDTV 720P 7 1920 1080 ...

Страница 8: ...VESA O 7 1360 768 47 71 60 01 85 50 VESA WXGA O 8 1280 1024 63 98 60 02 108 0 VESA SXGA O 9 1920 1080 67 50 60 00 148 5 HDTV 1080P O DTV 1 720 480 31 50 60 00 27 027 SDTV 480P 2 720 480 31 47 59 94 27 00 SDTV 480P 3 1280 720 45 00 60 00 74 25 HDTV 720P 4 1280 720 44 96 59 94 74 176 HDTV 720P 5 1920 1080 33 75 60 00 74 25 HDTV 1080I 6 1920 1080 33 72 59 94 74 176 HDTV 1080I 7 1920 1080 67 50 60 00 ...

Страница 9: ... the message Copying files from memory 4 Updating is starting 5 Updating Completed the TV will restart automatically 6 If your TV is turned on check your updated version and Tool option explain the Tool option next stage If downloading version is more high than your TV have TV can lost all channel data In this case you have to channel recover if all channel data is cleared you didn t have a DTV AT...

Страница 10: ...tar IC101 or Main board Check Multi Voltage P401 7 8pin A13 2V Replace Power Board Check DRV ON Control P401 11 pin High Check Power Board Check IC405 IC404 IC400 Q406 Output Voltage IC405 3 5V IC404 1 5V IC400 1 1V 5V Q406 3 3V Replace IC405 IC404 IC400 Q406 Re download software Check stand by Voltage L403 13 2V Replace L403 Check LVDS Power Voltage Q405 13 2V Replace Q405 Check Mstar LVDS Output...

Страница 11: ...ace L3701 L3704 Check IF_P N Signal TU3700 6 7 Pin Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok ok ok No No No Bad Tuner Replace Tuner Check inputsignal format Is it supported Check AV Cable for damage for damage or open conductor Check JK4400 CVBS Signal Line R242 ok ok ok No Replace Jack ok Check CVBS_DETSignal R4410 Replace R4410 No Check Mstar LVDS Output Replace Mstar IC101 or...

Страница 12: ...Replace Mstar IC101 or Main Board ok No Check inputsignal format Is it supported Check HDMICable conductors for damage or open conductor Check EDID Downlaod ok ok ok No Replace the defective IC or re download EDID data Check HDMISignal Check other set If no problem check signal line ok No Check Mstar LVDS Output Replace Mstar IC101 or Main Board ok No Replace Main Board No Check HDMI_DET HPD No Re...

Страница 13: ...eplace connector if found to be damaged ok No Check speaker resistance and connector damage Replace speaker ok No Off Toggle the Menu Check AMP IC IC5600 Power 13 2V 3 3V No Replace Amp IC IC5600 Check Output Signal P5600 1 2 3 4 pin No Check Mstar AUDIO_MASTER_CLK R123 No Replace Mstar IC101 or Main Board ok Check AMP I2C Line R111 R112 No Check signal line Or replace Mstar IC101 Replace Audio AM...

Страница 14: ...able Signal Check Tuner 3 3V Power L3701 L3704 Replace L3701 L3704 Check IF_P N Signal TU3700 6 7 Pin Check Mstar LVDS Output ok ok ok No No Bad Tuner Replace Tuner 8 AV RGB Audio Check AV Cable for damage for damage or open conductor Check JK4400 Signal Line R4408 R4409 ok ok No Replace Jack Follow procedure 7 All source audio trouble shooting guide ...

Страница 15: ...k No Check JK3400 Replace Phone Jack if found to be damaged ok No Check External Speaker Replace External speaker ok No Check AMP IC IC3400 Power 24V L3400 No Replace L3400 Check AMP IC IC3400 Output L3401 L3402 No replace AMP IC IC901 Check Mstar External AUDIO output C3401 C3402 No Replace Mstar IC101 or Main Board ok Check AMP IC IC3400 Mute High R3403 4pin No Check signal line Or replace Mstar...

Страница 16: ... 16 LGE Internal Use Only Copyright LG Electronics Inc All rights reserved Only for training and service purposes BLOCK DIAGRAM ...

Страница 17: ... related characteristics These parts are identified by in the 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 900 200 400 800 540 810 910 521 530 820 350 121 120 LV1 A2 A10 Set Sta...

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