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LG Electronics 32LC41/4R - page 1
R LCD TV SER VICE MANUAL CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. CHASSIS : LP78A MODEL : 32LC41/4R 32LC41/4R-ZA MODEL : 32LC42 32LC42-ZC MODEL : 32LC43 32LC43-ZA/ZE MODEL : 32LC44 32LC43-ZB website:http://biz.LGservice.com Downloaded From TV-Manual.com Manuals ...
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LG Electronics 32LC41/4R - page 2
- 2 - CONTENTS CONTENTS .............................................................................................. 2 SAFETY PRECAUTIONS ..........................................................................3 SPECIFICA TION ........................................................................................6 ADJUSTMENT INSTRUCTION ...... ...
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LG Electronics 32LC41/4R - page 3
- 3 - SAFETY PRECAUTIONS Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by i n t h e 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, F ...
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LG Electronics 32LC41/4R - page 4
- 4 - 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 t ...
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LG Electronics 32LC41/4R - page 5
- 5 - 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 techni ...
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LG Electronics 32LC41/4R - page 6
- 6 - 1. Application range This specification is applied to LP78A chassis. 2. Requirement for Test Testing for standard of each part must be followed in below condition. (1) Temperature : 25 ± 5°C(77 ± 9°F), CST : 40 ± 5°C (2) Humidity : 65% ± 10% (3) Power : Standard input voltage (100-240V~, 50/60Hz) *Standard Voltage of each products is m ...
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LG Electronics 32LC41/4R - page 7
- 7 - 5. Model Specification(EU) Remark Full Scart 1EA, Harf 1EA Side AV Side AV S-Video Priority L/R Input(PC 1EA,SCART 2EA, SIDE AV 1EA, Component 1EA) Specification EU PAL BG/DK, PAL I/II, SECAM L/L’ BAND PAL VHF/UHF C1_C69 CATV S1_S47 Upper Heterodyne PAL, SECAM, NTSC PAL, SECAM, NTSC PAL, SECAM, NTSC Y/Cb/Cr, Y/ Pb/Pr RGB-PC HDMI-DTV PC Audi ...
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LG Electronics 32LC41/4R - page 8
- 8 - 8. HDMI input (DTV) V-freq(kHz) 60.00 59.94 50.00 59.94 60.00 50.00 59.94 60.00 50.00 59.94 60.00 50.00 59.94 60 50 Proposed SDTV, DVD 480I(525I) SDTV, DVD 480I(525I) SDTV, DVD 576I(625I) 50Hz SDTV 480P SDTV 480P SDTV 576P 50Hz HDTV 720P HDTV 720P HDTV 720P 50Hz HDTV 1080I HDTV 1080I HDTV 1080I 50Hz HDTV 1080P HDTV 1080P HDTV 1080P 50Hz H-fre ...
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LG Electronics 32LC41/4R - page 9
- 9 - ADJUSTMENT INSTRUCTION 1. Application Range This spec sheet is applied all of the 26/32/37/42” LCD TV(LP78A) by manufacturing LG TV Plant all over the world. 2. Specification 1) Because this is not a hot chassis, it is not necessary to use an isolation transformer. However, the use of isolation transformer will help protect test instrument. ...
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LG Electronics 32LC41/4R - page 10
- 10 - => Select the "Bootloader.bat" file(install > VCTP_download > Bootloader) => Push "OK" => Finish the program, after saving the file "download_cs.vi2c" (if you click , the massage appears automatically) 4.2. S/W program download (1) Download method 1 (PCB Ass’y) 1) Connect the download jig to D-s ...
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LG Electronics 32LC41/4R - page 11
- 11 - 8) Click OK button at the "edit window". 9) Under Downloading process 10) If download is failed, for example "No acknowledge from slave". Execute download again from(1). (2) Download method 2 (AV Plate Ass’y) 1) Push S/W ‘ON" (connect SCL to GND using switch at Jig ) and connect the download jig to D-sub jack. 2) ...
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LG Electronics 32LC41/4R - page 12
- 12 - 9) Choose the Hex file in folder and execute downloading with click "open button". 10) Click OK button at the "edit window" 11) Under Downloading progress. 12) If download is failed, for example "No acknowledge from slave", execute download again from (1). (3) Download method 3 (SET) 1) Push the “Tilt” butto ...
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LG Electronics 32LC41/4R - page 13
- 13 - 7) Double click the download file low then, "edit" window will be opened. 8) Chick the choice button I n the "edit window", then "file choice window’ will be opened 9) Choose the Hex file in folder and execute downloading with click "open button" 10) Click OK button at the "edit window" 11) Down ...
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LG Electronics 32LC41/4R - page 14
- 14 - (5) Push the Update NVM from File 4.4. T ool Option Area Option Change Before PCB check, have to change the Tool option and Area option Option values are below (If on changed the option, the input menu can differ the model spec.) The input methods are same as other chassises(Use adj Key on the Adjust Remote control) 4.5. Color carrier Adjust ...
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LG Electronics 32LC41/4R - page 15
=> Detail EDID Options are below(a, b, c, d, e) a. Product ID b. Serial No : Controlled on production line c. Month, Year : Controlled on production line ex) Monthly: '03' => '03' Year: '2005' => '0F' d. Model Name(Hex): e. Checksum (7EH) : Changeable by total EDID data 5.1. Sequence of Adjustment (1 ...
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LG Electronics 32LC41/4R - page 16
- 16 - (3) DDC adjustment support command set 6.3. Adjustment of White Balance (For Manual adjustment) - Operate the zero-calibration of the CA-110 or CA-210, then stick sensor to LCD module when you adjust. - For manual adjustment, it is also possible by the following sequence 1) Select RF no signal by pressing “ POWER ON” key on remote contro ...
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LG Electronics 32LC41/4R - page 17
- 17 - TROUBLESHOOTING 1. No power (1) Symptom 1) Minute discharge does not occur at module. 2) Front LED does not activate. (2) Press check Plug in the power cord Start Check No Yes Is the power cord plugged in? Connect the cable. Plasma(CN1) No Yes Are the line filter and PSU connected? Replace the fuse. No Yes Is the correct fuse for the PSU in ...
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LG Electronics 32LC41/4R - page 18
- 18 - 2. Protect mode (1) Symptom 1) After lighting once it does not discharge minutely from the module. 2) The relay falls.(there is an audible “Click”.) 3) The color of the front LED turns from green to red. (2) Follow check Is the Power Board normal ? Replace Power Board. Is the output the normal Low/High voltage except for the Stand-by 5V? ...
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LG Electronics 32LC41/4R - page 19
- 19 - 3. No Raster (1) Symptom 1) No OSD or image are displayed on the screen. 2) The front LED remains green. (2) Follow check 4. In the case an unusual display in RF mode. Check the PDP Module Replace the Power board. Does minute discharge at Module? Is the inverter /VaVs on? Is output the normal Low/High voltage except for the Stand-by 5V? Yes ...
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LG Electronics 32LC41/4R - page 20
- 20 - 5. In the case of an unusual display in rear A V mode. Is video input of the A/V jack normal? (Check R172) Yes Sam as Block A Check the input source. No 6. In the case of an unusual display in Side A V mode. Is the video input of the A/V jack normal? (Check CN703 Pin9) Yes Sam as Block A Check the input source. No 7. In the case of an unusua ...
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LG Electronics 32LC41/4R - page 21
- 21 - 8. In the case of an unusual display in SCART 1 mode. Is the video input of the A/V jack normal? (Check R172) Yes Sam as Block A Check the input source. No 9. In the case of an unusual display in SCART 1_RGB mode. Is the video input of the A/V jack normal?(Check R110,R170, R171, R173) Yes Sam as Block A Check the input source. No 10. In the ...
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LG Electronics 32LC41/4R - page 22
- 22 - 1 1. In the case of an unusual display in component 1 mode. Is the video input of the A/V jack normal? (Check R248, R249,R250) Yes Change the IC(IC500) Check the input source. No 12. In the case of an unusual display in component 2 mode. Yes Change the IC(IC500) Check the input source. No Is the video input of the A/V Jk202 normal? (Check R2 ...
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LG Electronics 32LC41/4R - page 23
- 23 - 14. No Sound (1) Symptom 1) LED is green. 2) There is a picture but no sound. (2) Follow check Is there sound in any mode? Is the speaker on? Yes Yes Is the speaker cable normal? Yes Yes Is there no sound only for HDMI? Yes Is there no sound only AV /COM2/PC? Is the output of IC600 (R607, R608) normal? Yes Is there no sound only for RF? No N ...
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LG Electronics 32LC41/4R - page 24
- 24 - 15. HDMI mode Is only video normal? Is only audio normal? No Yes Download EDID data each port. Check the TMDS line wave. (R312~E3273) 1. Check the HDMI receiver’s status register. (0x60, offset 0x66) - If the value is 0xf or 0x8, it is normal. 2. Check the HDCP register. (0x6, offset 0x32) - Enable bit 6 : HDCP key loaded - Enable bit 5 : ...
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LG Electronics 32LC41/4R - page 25
- 25 - HDMI BLOCK DIAGRAM Downloaded From TV-Manual.com Manuals ...
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LG Electronics 32LC41/4R - page 26
- 26 - 530 531 532 590 591 120 120 300 200 600 210 220 202 580 520 250 240 230 401 430 403 400 402 EXPLODED VIEW Downloaded From TV-Manual.com Manuals ...
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LG Electronics 32LC41/4R - page 27
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LG Electronics 32LC41/4R - page 28
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LG Electronics 32LC41/4R - page 29
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LG Electronics 32LC41/4R - page 30
Mar., 2007 Printed in Korea P/NO : MFL36696905 Downloaded From TV-Manual.com Manuals ...
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