Part replacement
December 10, 2007
Front Access Full Matrix LED Sign Maintenance Manual (pn 1507610501 rev. A)
37
Diode module replacement
➩
To replace the diode module
1.
Open the sign. See “Opening a sign” on page 28.
2.
Turn the sign breaker to the OFF positoin.
3.
Remove the power panel cover.
4.
Loosen the screws to disconnect the wiring from the diode module.
5.
Remove the nuts (circled) securing the diode module to the power panel plate.
Figure 31.
Nuts securing the diode module to the power plate
6.
Apply thermal joint compound (pn 67004105) to the bottom of the replacement diode module (pn
30300003LFSP or 30300002SP).
7.
Bolt the replacement diode module to the power panel plate.
•
Module 30300002SP will mount to 1/4-20 x 3/4” PEM studs.
•
Module 30300003LFSP will mount to 8-32x1” screws.
WARNING!
Hazardous voltage. Contact with high voltage may cause serious injury or death. Always
disconnect power to unit prior to servicing.
Nuts
Position 1 for diode module
30300003LFSP.
30300002SP does not require a
specific orientation.
See step 8 for orientation and
connection details.