Lamp Replacement, Front, Standard Mullion Screens - Clarity WN-5220-S User Manual

Clarity Visual Systems

Lamp Replacement, Front, Standard Mullion Screens

CAUTION
Follow these steps to remove the standard, wider mullion screen and
replace the lamp, if the display unit is not built into a video wall. Read all
the steps before starting.
1. Turn off the power
2. Unplug power cord
3. Remove screen
4. Unplug lamp
connector
5. Unhook the lamp
6. Remove the lamp
7. Install new lamp
8. Reset the Lamp Hours
June 1999
62
For the standard screens, with the wider mullion, the screen
may be removed by hand from stand-alone displays without
damaging the screen. Where screen edges are adjacent to
each other in a video wall, removing the screen without a
screen removal tool may damage the female part of the screen
latch. In video wall configurations, use the SRT-100 Screen
Removal Tool (see instructions below and Options on page 2)
to prevent damage to the screen.
Switch off the WN-5220-S using the remote and allow the cooling cycle
to complete (3 minutes) before switching off the AC power at the rear-
panel switch.
Remove the AC power cord from the WN-5220-S.
If this display unit is part of a completed video wall, see the instructions
below on "Removing a Standard Screen Using the Screen Removal
Tool." Then go to Step 4.
Grasp the screen at each side of the bottom and pull out to separate the
latch-hooks from the latches. It comes out with a "pop." The screen
should not be loose at the bottom, but still attached at the top.
Slip your fingers between the screen frame and the display chassis, as
close to the top latches as possible and pull the top of the screen from
the latches. Don't twist the screen as it comes off the latches.
The lamp connector is next to the reflector fan. Unplug the connector by
pulling it up.
Unhook the two latches holding the lamp module to the optical
assembly.
Lifting up on the handle, tilt the lamp module away from the latches until
it can be pulled free of the optical assembly.
Carefully remove from the display by lifting the lamp module straight up
to clear the fans, and then withdrawing.
Replacement is the reverse of the above procedure. After installing the
lamp module, ensure that the high-voltage connector is in place and that
the latches are securely latched before replacing the screen or the lamp
service access cover.
Reset the lamp hours in the menu.