XOCECO PS42K8, Service Manual

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Note: 

This maintenance manual is intended only for the reference of the maintenance people.   

Please pay attention to the following points before carrying out the maintenance work. 

1.Safety Instructions 

Please read the “Points for attention for the Maintenance & Repair of PDP”and “Criterion 
for Identifying the Defects on Screen” as below, before inspecting and adjusting the TV set. 

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. “Points for attention for the Maintenance & Repair of PDP” 

To avoid possible danger, damage or jeopardy to health and to prevent PDP screen 

from new damage, the maintenance people must read the following carefully. If they ignore 
the following warnings, there will be deathful risks: 
1). Screens vary from one model to another and therefore not interchangeable. Be sure to 
use the same type of screen in the replacement. 
2). The operation voltage is approximately 350v for PDP module (including screen, driving 
circuit, logic circuit and power module). If you want to conduct maintenance work on PDP 
module when the set is in normal operation or just after the power is off, you must take 
proper measures to avoid electric shock and never have direct contact or touch with the 
circuitry of the working module or metal parts. That’s because within a short time relatively 
high voltage still remains on the capacitor of the driving part even after the power is off. 
Make sure to begin relevant maintenance operation at least one minute after the power is 
off. 
3). Don’t apply on the module any power supply that is higher than the specification.If the 
power supply used deviates from the value given in the specification, there might be a 
possibility of leading to fire or damage to the module.   
4). Never have operation or mounting work under unsuitable environment such as areas in 
the vicinity of water – bath room, laundry, water chute of kitchen – sources of 
fire,heat-radiation parts or direct exposure to sunlight. Otherwise there will be kickbacks. 
5). In case foreign substances such as water, liquid, metal slices or others fall into the 
module carelessly power must be cut off immediately. Keep the module as it is and do not 
move anything on the module. Otherwise it might be possible to contact the high voltage or 
cause shock short circuit so that it may lead to fire or electric shock.If there is smoke, 
abnormal smell or sound from the module, please cut the power off immediately. Likewise 
in case the screen doesn’t work when the power is on or during the operation, please also 
cut off the power at once. No more operation in this case. Do not remove or plug its 
connection wire when the module is in operation or right.after the power is off. That’s 
because there remains a relatively high voltage on the capacitor of the driving circuit. If 
there is a need to remove or plug in the    connection wire, please wait at least one minute 
after the power is off.   
8). Considering the module has a glass faceplate, please avoid extrusion by external force 
lest it should cause glass breakage that may get people injured. Two people are needed in 
cooperation to move this module lest contingency takes place.   
9).The complete TV set is designed on the basis of full consideration of thermal dissipation