Part replacement
December 10, 2007
Front Access Full Matrix LED Sign Maintenance Manual (pn 1507610501 rev. A)
39
Relay replacement
➩
To replace a relay
1.
Open the sign. See “Opening a sign” on page 28.
2.
Turn the sign breaker to the OFF position.
3.
Locate the relay to be replaced. Relay part number: 48000009SP.
Figure 33.
Relay locations
WARNING!
Hazardous voltage. Contact with high voltage may cause serious injury or death. Always
disconnect power to unit prior to servicing.
Relay #2
Relay #1
Relay #3
(not shown)