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Now downloading free:. Various lc 27w18s 27w25s 32w18s 32w25s 37w18s 37w25s 42w17s 866

. Various lc 27w18s 27w25s 32w18s 32w25s 37w18s 37w25s 42w17s 866 free download

LCD Liquid crystal display TVs

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File name:lc_27w18s_27w25s_32w18s_32w25s_37w18s_37w25s_42w17s_866.pdf
[preview lc 27w18s 27w25s 32w18s 32w25s 37w18s 37w25s 42w17s 866]
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Model:lc 27w18s 27w25s 32w18s 32w25s 37w18s 37w25s 42w17s 866 🔎
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Descr: . Various CHINA TV LCD lc_27w18s_27w25s_32w18s_32w25s_37w18s_37w25s_42w17s_866.pdf
Group:Electronics > Consumer electronics > TV > LCD
Uploaded:12-06-2020
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File name lc_27w18s_27w25s_32w18s_32w25s_37w18s_37w25s_42w17s_866.pdf

COLOR TELEVISION LCD-W# series LC-27W18S, LC-27W25S LC-32W18S, LC-32W25S LC-37W18S, LC-37W25S LC-42W17S CONTENTS Safety precautions... 1 Alignment instructions ... 3 Method of software upgrading ...10 Working principle analysis of the unit...13 Block diagram... 14 IC block diagram...15 Wiring diagram ... 19 Assembly list... 20 Identification criteria for the bright spot and dark spot of the LCD screen... 22 Troubleshooting... 23 Schematic diagram ... 34 Attention: This service manual is only for service personnel to take reference with. Before servicing please read the following points carefully. Safety precautions 1. Instructions Be sure to switch off the power supply before replacing or welding any components or inserting/plugging in connection wire Anti static measures to be taken (throughout the entire production process!): a) Do not touch here and there by hand at will; b) Be sure to use anti static electric iron; c) It's a must for the welder to wear anti static gloves. Please refer to the detailed list before replacing components that have special safety requirements. Do not change the specs and type at will. 2. Points for attention in servicing of LCD 2.1 Screens are different from one model to another and therefore not interchangeable. Be sure to use the screen of the original model for replacement. 2.2 The operation voltage of LCD screen is 700-825V. Be sure to take proper measures in protecting yourself and the machine when testing the system in the course of normal operation or right after the power is switched off. Please do not touch the circuit or the metal part of the module that is in operation mode. Relevant operation is possible only one minute after the power is switched off. 2.3 Do not use any adapter that is not identical with the TV set. Otherwise it will cause fire or damage to the set. 2.4 Never operate the set or do any installation work in bad environment such as wet bathroom, laundry, kitchen, or nearby f

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