Boser BPC-6169, Руководство пользователя

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Life Expectancy of Constituent Parts
This section describes the life expectancy of constituent parts (backlight,
power supply, internal cooling fan and touch screen) which make up to
BPC-6169.
TFT Display Backlight
Display brightness decreases over time with use. The expected operating lifetime
of the backlight time to reach 50% initial brightness) is 30,000 hours (assuming
continuous lit state at 25 degrees C). Actual lifetime before replacement is about
30,000 hours, although this depends on operating conditions.
Power Supply
Assuming continuous use at 25 degrees C, the expected life of the power supply
is approximately 50,000 hours. This may be lower given use at higher
temperatures.
Internal Cooling Fan
The BPC-6169 is equipped with a built-in +12V cooling fan, the life expectancy of
this fan under continuous use is approximately 50,000 hours (average time
before the rate of rotation is reduced by approximately 30%). Although the rate of
rotation will continue to go down, the fan should not just suddenly stop.
Touch Screen
The operating lifetime of the touch screen is approximately 1 million operations
(as tested by mechanical manipulation under 100g of force at a rate of two
presses per second).
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