Mindray Passport 5-Lead, Service Manual

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Passport 5-Lead, 5L, LT, XG Service Manual 0070-00-0420 4 - 5
Repair Information Disassembly Instructions
2. Unfasten the four captive screws at the corners of the shield (128).
3. Lift the shield (128) from the front housing assembly. Disconnect the cable connectors
J77 and J78 from the Panel board (16). Remove the keypad ground screw (39) from the
panel board. Disconnect the cable assembly J72 connector from the Panel board and
place the Panel board assembly aside.
4. Remove the four screws (138) that secure the left (145) and right (146) brass brackets to
the front panel assembly. Remove the assembly from the casing.
5. Disconnect the cable assembly from the High Voltage Power Supply (153)mounted to the
front housing. remove the four screws (39) from the four corners of the LCD Color
Display assembly (131). Lift the LCD Color Display (131) and remove.
H. Removal of the Keypad (32)
NOTE: The keypad is not reusable. Discard keypad once it is
removed.
1. Remove the Panel Board (16).
2. Using a blunt instrument (comparable to a electricians knife) lift the corners of the
keypad.
3.
Carefully peel the keypad back from both sides towards the cable which protrudes
through the front housing.
4. When the keypad is completely loosened, pull cable and ground strap through the front
housing to remove.
I. Installing a New Keypad (41)
The keypad consists of two parts, the membrane switch keypad (41) and the printed graphic
overlay (1).
1. Remove the protective coating from the back of the keypad (do not remove protective
cover from the front side of the keypad).
2.
Insert P72 and the ground strap through the cutout in the front housing (3) and stick the
keypad in place.
3. Remove the protective coating from the front of the keypad.
4. Place the correct overlay onto the keypad being careful to align printed graphics to the
membrane switches.
NOTE: The overlay is option dependent.
J. Removal / Installation of the Glare Screen (2)
1.
Remove the LCD/EL assembly.
2. Peel back the four corners of the glare screen to remove.
3. Install a new glare screen by removing the protective coating from the adhesive tape
already mounted on the glare screen and press in place inside the front housing.
Removal of the Board Sub-Assembly (A)