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Table of Contents
8 Maintenance and Troubleshooting 19
Getting Started ........................................19
DDMS Cabinet .........................................19
Earth Ground Resistance .....................19
Cabinet .................................................. 19
Fan .........................................................19
Filter ........................................................19
DDMS Controller ....................................19
ACP ........................................................19
LED Panel ..................................................20
Cabinet .................................................. 20
Face .......................................................20
Wet Outdoor Cleaning Method ..........20
Pressure Wash Cleaning Method ........20
LED and Electronic Circuitry ................21
Fiber-to-Wire Enclosure ...........................21
Maintenance Checklist ..........................22
Troubleshooting .......................................23
9 Replacement Parts and Exchange
and Repair Programs........................25
Daktronics Part Numbers ........................25
Tools ...........................................................25
Module Replacement .............................26
DDMS Controller Replacement .............26
Power Supply Assembly Replacement .27
Fan Assembly Replacement ..................27
Light Assembly Replacement ................27
VM CAN Distribution Board Replacement
(Optional) .................................................27
Daktronics Exchange and Repair &
Return Programs ......................................28
Exchange Program ..............................28
Before Contacting Daktronics ............. 28
Repair & Return Program .....................29
Shipping Address .................................. 29
Email ......................................................29
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