Controlling The Total Operating Hours Of The Lamp - Sharp XV-Z1U Service Manual

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CONTROLLING THE TOTAL OPERATING HOURS OF THE LAMP
The following control is carried out when the lamp has been used for 1900 hours and 2000
hours.
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After 1900-hour use
When the power is turned on, "LAMP" appears in the on-screen display for about 1 minute (flashing in yellow)
and the lamp LED indicator lights up in red. When the 1,900-hour point comes up during use of the unit, the
"LAMP" display starts flashing in yellow on the screen for 1 minute at the very 1,900-hour point. Now the lamp
LED indicator changes from green to red.
After 2000-hour use
When the power is turned on, "LAMP" appears in the on-screen display for about 5 minutes (flashing in red) and
the lamp LED indicator lights up in red. Five minutes thereafter, the power turns itself off and the unit is interrupted.
When the 2000-hour point comes up during use of the unit, the "LAMP" display starts flashing in red on the
screen for 5 minutes at the very 2000-hour point. Five minutes later, the power turns itself off and the unit is
interrupted. (The lamp LED indicator stays red since the 1900-hour point.)
If you try to turn on the power three times after the 2000-hour point, the unit remains off.
When the 2000-hour point comes up, take the following steps.
Replace the lamp with new one. While holding down both the "V0L.v" and "ADJY" keys on the unit, turn on
the main power switch (located on the side of the unit). The lamp operating hourmeter is now reset to zero. Turn
on the unit and make sure the time display shows "OOOOH".
Displaying the total operating hours of the lamp (used to check the total time)
Change the STATUS3 data settings: PICTURE at 0, BRIGHT at MAX, COLOR at MIN, TINT at MIN, and
SHARPNESS at MAX. Hold down the SOUND DOWN and ENTER keys for longer than 3 seconds. By doing
this, the total operating hours will be displayed on the screen.
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