| s/n | Important precautionary measures that should be taken in LCD television maintenance. |
| S.D | t-cal | Sig. (2-tailed) | Decision |
| 34 | Unplug the TV and other connected equipment from the wall outlet before you begin cleaning your TV. | 3.42 | 0.70 | 1.419 | 0.158 | NS |
| 35 | Wipe the LCD screen gently with a soft cloth. | 3.42 | 0.66 | 1.440 | 0.152 | NS |
| 36 | Ensure TV securely mounted on a stable surface before you begin loosen the parts to present it from toppling over. | 3.45 | 0.66 | 1.583 | 0.116 | NS |
| 37 | Stubborn stains may be removed with a cloth slightly moistened with a solution of mild soap and warm water. | 3.44 | 0.65 | 2.118 | 0.036 | S |
| 38 | Do not plug in the TV into the wall outlet until the moisture from cleaning has evaporated. | 3.45 | 0.66 | 2.116 | 0.036 | S |
| 39 | If using a chemically pre-treated cloth in cleaning the TV, follow the instruction provided on the package. | 3.41 | 0.66 | 0.857 | 0.393 | NS |
| 40 | Strong solvents such as a thinner, alcohol or benzene should not be used for cleaning LCD TV. | 3.42 | 0.63 | 0.987 | 0.325 | NS |
| 41 | LCD TV screen should not be exposed to direct illumination or sunlight. | 3.42 | 0.65 | 0.957 | 0.340 | NS |
| 42 | Do not install LCD television in a room with reflective wall and floor materials. | 3.41 | 0.64 | 0.884 | 0.378 | NS |
| 43 | LCD television should not be moved from a cold area to a warm area. | 3.41 | 0.64 | 0.376 | 0.708 | NS |
| 44 | LCD television should not be exposed to rain or excessive moisture. | 3.41 | 0.63 | 0.898 | 0.371 | NS |
| 45 | When turning off the TV by detaching the power cable or DC power cord, wait for 6 seconds before attach the power cable or DC power cord for normal operation. | 3.41 | 0.64 | 0.376 | 0.708 | NS |
| 46 | Ventilation holes on the television cabinet should not be blocked. | 3.37 | 0.64 | 0.725 | 0.470 | NS |
| 47 | Don’t work alone so that in the event of an emergency another person’s presence may be essential. | 3.39 | 0.63 | 0.290 | 0.836 | NS |
| 48 | Always keep one hand in your pocket when anywhere around a powered line-connected or high voltage system. | 3.37 | 0.62 | −0.383 | 0.702 | NS |
| 49 | Wear rubber bottom shoes or sneakers when working on LCD television. | 3.41 | 0.63 | −0.193 | 0.847 | NS |
| 50 | Work area should be set-up away from possible grounds that you may accidentally contact. | 3.35 | 0.64 | 0.102 | 0.919 | NS |
| 51 | Don’t wear any jewelry or other articles that could accidentally contact circuitry and conduct current, or get caught in moving parts. | 3.35 | 0.63 | 0.103 | 0.918 | NS |
| 52 | Use an isolation transformer if there is any chance of contacting line connected circuits. | 3.34 | 0.64 | −0.497 | 0.620 | NS |
| 53 | If you must probe live, put electrical tape over all but the last 1/16" of the test probes to avoid the possibility of an accidental short which could cause damage to various components. | 3.32 | 0.64 | 0.483 | 0.630 | NS |
| 54 | Perform as many tests as possible with power off and the equipment unplugged. | 3.31 | 0.66 | 0.412 | 0.681 | NS |
| 55 | Avoid working when you are really tired. | 3.29 | 0.66 | 0.321 | 0.749 | NS |
| 56 | Unplug the TV set from socket outlet after use to avoid burning of fuse or other electronic components as a result of lightening. | 3.28 | 0.67 | 0.260 | 0.795 | NS |
| 57 | If the television clicks with power-on but no other action, check other fuses in the circuit and replace them accordingly. | 3.39 | 0.62 | −4.312 | 0.001 | S |
