XOCECO LC17H3S, Service Manual

1 

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.   

Attention: 

This

service manual is only for service personnel to take reference with. Before servicing

please read the following points carefully.