更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com LCD TV SERVICE MANUAL CHASSIS : LD84D MODEL : 42LG5010 42LG5020 42LG5030 42LG5010-ZD 42LG5020-ZB 42LG5030-ZE CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com CONTENTS CONTENTS .............................................................................................. 2 PRODUCT SAFETY ..................................................................................3 SPECIFICATION ........................................................................................6 ADJUSTMENT INSTRUCTION ...............................................................13 TROUBLE SHOOTING ...........................................
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. 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.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com SERVICING PRECAUTIONS CAUTION: Before servicing receivers covered by this service manual and its supplements and addenda, read and follow the SAFETY PRECAUTIONS on page 3 of this publication. NOTE: If unforeseen circumstances create conflict between the following servicing precautions and any of the safety precautions on page 3 of this publication, always follow the safety precautions. Remember: Safety First. General Servicing Precautions 1.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com IC Remove/Replacement Some chassis circuit boards have slotted holes (oblong) through which the IC leads are inserted and then bent flat against the circuit foil. When holes are the slotted type, the following technique should be used to remove and replace the IC. When working with boards using the familiar round hole, use the standard technique as outlined in paragraphs 5 and 6 above. Removal 1.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com SPECIFICATION NOTE : Specifications and others are subject to change without notice for improvement. 1. Application Range. 3. Test method This spec sheet is applied to the 37"/42"/47"/52" LCD TV used LA84A chassis. 3.1 Performance : LGE TV test method followed. 3.2 Demanded other specification Safety : CE, IEC specification EMC : CE, IEC 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.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 5. MODEL General Specification No 1 Item Broadcasting system Specification Remarks 1) PAL-BG 2) PAL-DK 3) PAL-I/I’ 4) SECAM L/L’ 5) DVB-T (ID TV) 2 Receiving system Analog : Upper Heterodyne Digital : COFDM 3 Scart Jack (2EA) PAL, SECAM Scart 1 Jack is Full scart and support RF-OUT(analog) Scart 2 jack is Half scart and support MNT/DTV-OUT.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 6. Chroma & Brightness 6.1 37"LCD Module No. Specification Min. 1. Viewing Angle10> Item Right/Left/Up/Down 89 2. Luminance Luminance (cd/m2) 400 Variation 3. Contrast Ratio 4. CIE Color Coordinates Blue Remark 1.3 MAX / MIN LPL(37") 1000 1400 WX Typ 0.279 Typ WY -0.03 0.292 +0.03 RED Green Max. 500 - CR White Typ. Xr 0.641 Yr 0.334 Xg 0.291 Yg 0.614 Xb 0.145 Yb 0.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 6.3 47"LCD Module No. Specification Min. Typ. 1. Viewing Angle10> Item Right/Left/Up/Down 80 88 2. Luminance Luminance (cd/m2) 450 500 Variation 3. Contrast Ratio 4. CIE Color Coordinates - CR White Blue MAX / MIN CMO(47") 1800 2000 Typ 0.280 Typ WY -0.03 0.285 +0.03 Xr 0.638 Yr 0.331 Xg 0.272 Yg 0.590 Xb 0.144 Yb 0.068 Remark 1.3 WX RED Green Max.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 7. SET Optical Feature (Measurement Condition: Full white/ Dynamic) -> Measure the black luminance after 30 seconds. Luminance (min) C/R(min) AV, COMPONENT, HDMI AV, COMPONENT, HDMI LPL 400cd/m2 1000 LG5000 42 inch AUO 400cd/m2 1000 C/R is excepted for PC mode. 47 inch CMO 400cd/m2 1000 SHARP 360cd/m2 1000 No Item module 1 37 inch 3 3 4 52 inch Remark 8. Component Video Input (Y, PB, PR) Specification No.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 10. HDMI Input (DTV) No. Resolution H-freq(kHz) V-freq(Hz) 59.94 Pixel clock(MHz) 27.00 Proposed 1. 720*480 31.47 2. 720*480 31.50 60 27.027 SDTV 480P(4:3) 3. 640*480 31.469 59.94 25.175 SDTV 480P(4:3) 4. 640*480 31.469 60.00 25.20 SDTV 480P(4:3) 5. 720*480 31.47 59.94 27.000 SDTV 480P(16:9) 6. 720*480 31.50 60.00 27.027 SDTV 480P(16:9) 7. 720*576 31.25 50.00 27.000 SDTV 576P 8. 1280*720 37.50 50.00 74.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 12. Mechanical specification 12-1. 37LG5000 No. 1. 2. Item Product Content Unit Widt(W) Length(D) Height(H) mm Dimension Before Packing 936.4 293.8 684.4 mm After Packing 1195 253 665 mm Product Only SET 18.3 Kg With BOX 23 Kg Remark With Stant 12-2. 42LG5000 No. 1. Item Product Dimension 2. Product Content Unit Widt(W) Length(D) Height(H) mm Before Packing 1034 293.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com ADJUSTMENT INSTRUCTION 4. Click "Read" tab, and then load download file(XXXX.bin) by clicking "Read" 1. Application Range These instructions are applied to all of the LCD TV, LD84D Chassis. (4) 2. Notice filexxx.bin 2.1 The adjustment is according to the order which is designated and which must be followed, according to the plan which can be changed only on agreeing. 2.2. Power Adjustment: Free Voltage 2.3. Magnetic Field Condition: Nil. 2.4.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com O USB DOWNLOAD 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 Low, it didn’t work. But your downloaded version is High, USB data is automatically detecting 3. Show the message "Copying files from memory" 3.1 ADC Process 3.1.1 PC input ADC 3.1.1.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com MODEL: 209 in Pattern Generator(480i Mode) PATTERN : 65 in Pattern Generator( MSPG-925 SERISE) 3.2 Function Check 3.2.1 Check display and sound -Check Input and Signal items. (cf. work instructions) 1. TV 2. AV (SCART1/SCART2/S-VHS/CVBS) 3. COMPONENT (480i) 4. RGB (PC : 1024 x 768 @ 60hz) 5. HDMI 6. PC Audio In * Display and Sound check is executed by Remote controller.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com - After done all adjustments, Press "In-start" button and compare Tool option and Area option value with its BOM, if it is correctly same then unplug the AC cable. If it is not same, then correct it same with BOM and unplug AC cable. For correct it to the model’s module from factory JIG model. - Don’t push The "IN STOP KEY" after completing the function inspection. 4.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 4.5 EDID DATA O HDMI3 EDID (DDC (Display Data Channel) Data Note) Because downloading can be down at the power on mode only, if it is not set, press the Power ON key of the remote controller to proceed.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 5. Adjusting the White Balance 6. How to adjust 5.1 Overview 6.1 How to adjust automatically - Purpose and principle for adjusting the white balance - Purpose : Adjust the white balance to reduce the deviation of the module. - Principle: The full dynamic range of the module when the RGB gain on the OSD is 192.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 6.3 Reference (White Balance adjustment coordinate and White balance) 8. Set the shipping mode (In-stop) - After completing the final test, in order to set the set to the shipping condition, press the In-Stop key of the R/C to make sure that the set is turned off. O Brightness: Full white 216 Gray O Standard color coordinate and white balance when using the CS-1000 Color temperature Color Coordination x y 9. GND and resisting pressure test UV Temp COOL 0.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 10. ISP Download (option) 10.1 Overview The Micom upgrade via the external port for the service for the customer. 10.2 Device to use 1) PC 2) B/D for the interface (IIC & ISP) 3) Jig for downloading (for the power supply) 10.3 Adjustment wiring diagram (Download device configuration diagram) Main B/D Interface B/D 10.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com 11. USB S/W Download (option) 11.1 Overview The USB download is for the quick service response via the S/W upgrade and for applying the S/W upgrade necessary for the board adjustment 11.2 How to dowunload 1) After turning on the set, make sure that the display screen is turned on.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com TROUBLESHOOTING TV/CATV doesn t display Check TU500 Pin15(Video output), Pin16(Sound output) Can you see the normal signal? NO Could you measure voltage of TU800 & IIC lines? Are they all normal? NO You should check power line & IIC lines. YES YES Check the output of TR(Q503). Can you see the normal waveform? You should replace TUNER. NO You should decide to replace TR(Q503) or not.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com DTV doesn t display Check the output data of TU800 Pin 24~34 Can you see the normal signal? NO Could you measure voltage of TU800 & IIC lines? Are they all normal? NO You should check power line & IIC lines. YES YES Check the output of Main IC(IC100). Especially you should check The H,V sync and clock. Can you see the normal waveform? You should replace TUNER. NO After checking the Power of Main IC(IC100) you should decide to replace Main IC or not.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com AV1/2/3 doesn t display Check J600,J600,JK607,JK618 Can you see the normal waveform? NO J600,J601 or SIDE AV may have problem. Replace this Jack or SIDE AV. NO After checking the Power of AV switch you should decide to replace AV switch or not. NO After checking the Power of Main IC(IC100) you should decide to replace Main IC or not. YES Check the input of Video switch(IC700). Can you see the normal waveform? YES Check the output of Main IC(IC100).
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com Component doesn t display Check J701. Can you see the normal waveform? NO J701 may have problem. Replace this Jack. NO After checking the Power of component Audio switch, you should decide to replace component Audio switch or not. NO After checking the Power of component Audio switch you should decide to replace component Audio switch or not.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com RGB PC doesn t displa y Check J703 , Can you see the normal waveform? NO J703 may have problem. Replace this Jack. NO After checking the Power of RGB Video switch, you should decide to replace RGB Video switch or not. NO After checking the Power of RGB Audio switch, you should decide to replace RGB Audio switch or not. NO After checking the Power of RGB Audio switch you should decide to replace RGB Audio switch or not.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com HDMI doesn t display Check input connect J900 , J901, J902 Can you see the normal waveform? NO J900 , J901, J902 may have problem. Replace this Jack. YES Check DDC communication lines(IC900, IC901, IC903 Pin5,6) NO After checking the Power of this chip, you should decide to replace this or not. YES Check HDCP communication lines(IC902) NO After checking the Power of this chip, you should decide to replace this or not.
Copyright © 2007 LG Electronics. Inc. All right reserved.
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更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.
更多难得资料请到江南家电维修论坛免费下载! http://bbs.520101.com P/NO : MFL41333504 Apr.