20
Parts Replacement
5.2 Instructions for Replacing Parts
Replacing a Digit
Do not attempt to remove individual LEDs, but rather replace the entire digit panel. To remove a display
digit, follow these steps:
1.
Open the display panel as described in
Section 4.1
.
2.
Disconnect the power connector from the back of the digit. Release the connector by squeezing
together the locking tabs and pull the connector free.
3.
Remove the #6-32 Keps nuts that hold the digits to the inside of the panel.
4.
Remove the digit.
5.
Position a new digit over the screws and tighten the nuts.
6.
Reconnect the power connector.
Note:
This is a keyed connector - it will attach in one way only. Do not attempt to force the
connection.
7.
Close and secure the digit panel and test the display.
Replacing a Digit Segment
The larger digits (24") are constructed in segments, as shown in
. In this case, make repairs by removing only the defective segment.
Do not attempt to remove individual LEDs. To remove a digit segment,
follow these steps:
1.
Open the digit panel as described in
Section 4.1
.
2.
Disconnect the two-pin power connector from the back of
the individual segment. Release the connector by squeezing
together the locking tabs and pull the connector free.
3.
Individual segments are secured to the inside of the panel with
fixed machine screws, spacers, and push nuts. Remove the
nuts and lift the segment off the standoff screws.
4.
Position the new segment over the screws and tighten the nuts.
5.
Reconnect the power connector.
Note:
This is a keyed
connector - it will attach in one way only. Do not attempt to
force the connection.
6.
Close and secure the digit panel and test the display.
Replace a malfunctioning colon, decimal, or indicator assembly in the
same manner.
2-Pin
Connectors
Horizontal SegmentV
ertical Segment
Figure 16:
Digit Segments
