R5905753 /17 DPxK-19B/23B/P156
Image 11–6 Cooling liquid refill
3. Fill the reservoir with cooling liquid until the level is equal with the Max indication on the reservoir.
4. Close the reservoir again. Turn the filler cap clockwise to close the reservoir.
5. Reinstall the side cover.
CAUTION: Never fill above Max level mark !
11.7 Authorization to clear security warning on the
projector
When is an authorization required to clear the security warning?
If a module has been removed or if the sealed compartment has been opened, an authorization will be
required to clear the security warning.
Required tools
• Security key (Dallas iButton®).
• Authorization pin code.
Authorization procedure to clear security warning
1. Ensure that all modules are properly installed.
2. Start up the projector (standby mode).
3. Initiate authorization by holding the security key in the security socket D..
Image 11–7 Keypad
The color of the backlight of the numeric keys 1 to 6 of the local keypad changes from blue to yellow.
4. Enter pin code within 5 seconds.
• In case no keys are pressed, the color of the backlight of the numeric keys 1 to 6 changes back to blue.
Maintenance
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