Acer AT3705-DTV Service Manual page 37

RELIABILITY PERFORMANCE
Electrostatic Discharge Requirements
This display shall withstand 8kV for contact discharge and 15kV for air discharge of Electrostatic
Discharge to meet the acceptance criteria as specified in IEC 1000-4-2.
Mean time between failure (MTBF)
For the purposes of demonstrating the MTBF of this product, a failure is defined as the inability of
the product to function in accordance with this specification. A failure event interrupts the expected
operation of the product and requires service or repair to restore the product to full functionality.
The MTBF of this product is target meet or exceed 20,000 hours @ 25 °C at a 90% confidence limit
under all operating conditions as specified in previous section.