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Attention: This service manual is only for service personnel to take reference with. Before servicing
please read the following points carefully.
Safety instructions
1 Instructions
1.1 Be sure to switch off the power supply before replacing or welding any components or
inserting/plugging in connection wire
1.2
Anti static measures to be taken (throughout the entire production process!):
1.2.1 Do not touch here and there by hand at will;
1.2.2 Be sure to use anti static electric iron;
1.2.3 It's a must for the welder to wear anti static gloves.
1.3 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 fire source, heating equipment and devices or
exposure to sunlight etc. Otherwise bad effect will result.
2.5 If any foreign substance such as water, liquid, metal slices or other matters happens
to fall into the module, be sure to cut the power off immediately and do not move
anything on the module lest it should cause fire or electric shock due to contact with
the high voltage or short circuit.
2.6 Should there be smoke, abnormal smell or sound from the module, please shut the
power off at once. Likewise, if the screen is not working after the power is on or in the
course of operation, the power must be cut off immediately and no more operation is
allowed under the same condition.
2.7 Do not pull out or plug in the connection wire when the module is in operation or just
after the power is off because in this case relatively high voltage still remains in the
capacitor of the driving circuit.Please wait at least one minute before the pulling out or
plugging in the connection wire.
2.8 When operating or installing LCD please don't subject the LCD components to bending,
twisting or extrusion, collision lest mishap should result.
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