Daktronics VS-5000 Series, Руководство пользователя

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Maintenance and Troubleshooting
8
5 Maintenance and Troubleshooting
Getting Started
• Disconnect power before performing any repair or maintenance work on the signs.
•
Only qualified service personnel should access internal sign electronics.
• Daktronics engineering staff must approve any changes made to the signs. If making
modifications to the signs, submit detailed drawings to the Daktronics engineering
staff for evaluation and approval or the warranty will be void.
Service and Diagnostics
The following sections address servicing of the following sign components:
• Modules
• Sign controller
• +9 V power supplies
•
Ventilation fans and filters
• Beacons
• Thermostat
• Photo sensor
The tools required to service the sign include:
• Small Phillips screwdriver
•
Small flat screwdriver
•
1
/
8
" hex head wrench
• Medium Phillips screwdriver
•
Medium flat screwdriver
• Nutdriver set
Sign Controller Replacement
Complete the following steps to replace a controller in the display. Required tools include
a
1
/
8
" hex wrench and a
5
/
16
" nut driver.
1. Turn off power to the display.
2. Remove the module directly in front of the controller. Refer to Figure 2 for the exact
location.
3. Disconnect the power plug from J5.
4. Remove all power and signal connections from the board. Label the cables as they
are removed to ensure proper replacement.
5. Remove the six nuts holding the board in place using a
5
/
16
" nut driver.