Replacing the display – Welch Allyn PROPAQ CS User Manual
Page 79
Service Manual
Repair procedures
75
Replacing the Display
The Digital Board is located beneath the Analog Board. It is necessary first to pull off the
board set (consisting of the Display, Digital Board, and Analog Board) in order to
disconnect the Display cables from the Digital Board without damaging the cables.
The Display is located beneath the Digital Board. When handling the Display, use gloves or
fingercots to minimize cleaning required before reassembly. Handle the Display by
grasping the metal interface plate whenever possible.
1.
Remove the seven screws securing the Display Module to the Front Chassis. These
seven screws are located in the rubber gaskets around the perimeter of the Chassis.
2.
Remove the assembled boards (Display, Digital Board, and Analog Board) from the
Front Chassis by gently gripping the Analog Board and lifting up.
3.
Immediately place the Front Chassis into a clean anti-static protective bag to keep dirt
and debris away from the inside of the touchscreen.
4.
Remove the Analog Board from the Digital Board (
5.
Disconnect the following cables:
•
Gently lift the flat cable connector from J7.
•
Disconnect the Display Power Cable from P5.
•
Disconnect the Touchscreen Cable from P6.
6.
Remove the snap rivet securing the foil shield over the Display Cable.
Note
Do not remove the PROMs from the Digital Board. The Digital Board contains
monitor-specific on-board configuration programming that requires special service
procedures. For assistance in servicing the Digital Board and software, contact
Welch Allyn or your local distributor.
Caution The Touchscreen Cable can be easily damaged. To avoid damage, use
tweezers to disconnect and connect the Cable. Do not allow sharp bends in the
Cable.
Front Chassis with touchscreen
Display gasket
Display, Digital Board, and
Analog Board (assembled)