To Replace The Bezel Or Circuit Board - Siemens Moore 353 User Manual

UM353-1
3. Loosen the Display Assembly's two faceplate screws. One is above the numeric display and one behind the
flip-down door at the bottom of the faceplate.
4. Pull the Assembly from the panel about 1.5" (38 mm).
5. Look behind the Assembly and locate the display cable from the MPU Controller board. Open the connector
locking levers on the Assembly mounted connector to eject the cable mounted connector.
6. Place the Display Assembly in a static shielding bag and set it aside.
7. Go to the following sections to remove a circuit board or replace the power input fuse.
INSTALLATION
1. Hold the Display Assembly close to the open case and mate the display cable with the connector on the Display
Assembly circuit board. Check that the locking levers on the connector fully engaged the cable mounted
connector. The cable is keyed.
2. Align the Display Assembly with the case. To ensure water tightness, use a torque screwdriver set to 6 inch-
pounds to tighten the two faceplate screws. Alternatively, use a screwdriver to tighten the screws until a slight
resistance is felt, then tighten an additional ½ turn. DO NOT OVERTIGHTEN.
3. Remove the wrist strap.
When changing a Display Assembly with the controller powered-up and an error code
present, the displays will light in a random pattern except for the alphanumeric display
which will show the error code. Clear the error to clear the displays.

11.5.2.2 To Replace the Bezel or Circuit Board

REMOVAL
1. Place a properly grounded wrist strap on your wrist and remove the Display Assembly as described
above.
2. Refer to the figure below. Notice that the circuit board is captured by a Fixed Retainer at the top of
the bezel and a Flexible Retainer at the bottom. Grasp the body of the black connector at "A" and at the same
time press the Flexible Retainer downward slightly. Pull gently on the connector to lift the bottom edge of the
board above the Flexible Retainer.
The board is a snug fit. Do not squeeze the bezel sides and make removal more difficult.
3. Remove the board from the bezel by carefully continuing to lift board while pulling the board out from under to
Fixed Retainer at the top of the assembly.
4. If the bezel is being replaced:
1) Remove the two Display Assembly mounting screws. Turn the Assembly face up and lift each mounting
screw upward until the threaded portion contacts the bezel. Turn each screw counterclockwise to unscrew
it from the bezel. A screwdriver may be needed once a screw is started.
2) Remove the flip-down door by pressing on the door near its pivot point to free the door from the bezel.
March 2003
NOTE
Note
Maintenance
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