KDL-60W840B, KDL-60W850B, KDL-60W855B, KDL-60W857B, KDL-70W830B, KDL-70W840B, KDL-70W850B, KDL-70W855B, KDL-70W856B, KDL-70W857B - Sony TV Service Manual (repair manual). Page 5

To avoid damaging the LCD panel: 

1.  Do not press on the panel or frame edge to avoid the risk of electric shock.
2.  Do not scratch or press on the panel with any sharp objects.
3.  Do not leave the module in high temperatures or in areas of high humidity for an extended period of time.
4.  Do not expose the LCD panel to direct sunlight.
5.  Avoid contact with water. It may cause a short circuit within the module.
6.  Disconnect the AC power when replacing the backlight (CCFL) or inverter circuit. 

 

(High voltage occurs at the inverter circuit at 650Vrms.)

7.  Always clean the LCD panel with a soft cloth material.
8.  Use care when handling the wires or connectors of 

the inverter circuit. Damaging the wires may cause a 

short.

9.  Protect the panel from ESD to avoid damaging the 

electronic circuit (C-MOS).

10.  During the repair,

 DO NOT leave the Power On for 

more than 1 hour

 while the TV is face down on a 

cloth.

CAUTION: When cleaning the TV, be sure to unplug the power cord to avoid any chance of electric shock.

 



Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water.

 



If using a chemically pretreated cloth, please follow the instruction provided on the package.

 



Never use strong solvents such as a thinner, alcohol or benzine for cleaning. 

 



Periodic vacuuming of the ventilation openings is recommended to ensure proper ventilation.

 



Do Not

 use paper towels, any type of abrasive pad, rags, rubber or vinyl materials to clean the screen. Using 

these materials could easily scratch the screen which may result in permanent damage.

 



Do Not

 use any cleaning product containing alkaline/acid cleaner, scouring powder, or volatile solvent, such as 

alcohol, ammonia, benzine, thinner or insecticide. Using any of these harsh cleaners may result in permanent 

damage to the screen.

 



Do Not 

spray water or detergent directly onto the TV screen . If liquid drips into the bottom of the screen it may 

cause a failure.

• Disconnect all cables when carrying the TV.

• Carry the TV with the adequate number of people; larger size TVs require two or more people.

• Correct hand placement while carrying the TV is very important for safety and to avoid damage.