Daktronics Sportsound 500HD - Manual (Page 22)

16 Maintenance & Troubleshooting
Control Enclosure Maintenance
Performing preventative maintenance will ensure proper air circulation to internal
components. How much maintenance is required depends on the surrounding environment.
The filter is on the inside bottom door panel. Remove the filter and clean with warm, soapy
water and dry gently. Check the filter for signs of damage such as tears, cuts, and excessive
war from the environment. If necessary, order a new filter (Hoffman
® part number WFF1 –
visit www.hoffmanonline.com ). Also, check the fan assembly and clean the blades with
compressed air.
5.2 Troubleshooting
This section lists potential problems with the system, indicates possible causes, and suggests
corrective action. This list does not include every possible problem, but it does represent
some of the more common situations that may occur. If the problem persists, please contact
Daktronics for assistance.
Note: Be sure to power on the announcer’s rack, fiber conversion box, and cabinet breakers.
Make sure all connections from source to the fiber conversion box are complete.
Symptom/Condition Possible Cause Potential Solution
No power to cabinet; green
indicator light is off on bottom of
control enclosure Breaker is off at sign
Bad A-2238 power supply Turn breaker ON
Order new power supply
No audio from cabinet, but
source (announcer
’s rack)
shows output
No power at cabinet
Fiber conversion box is
unplugged from wall outlet
or cable to announcer
’s
rack
Turn breaker on
Plug in fiber conversion box
No audio from cabinet Fiber link down/
TX-RX swap
Fiber link down/
broken fiber Swap TX-RX fibers to fix
link
Replace fiber splice, repair
fiber termination/cable
Weak audio from cabinet Improper gain at Analog to
Digital Converter (in fiber
conversion box) Adjust gain according to
Biamp Audia Input &
Output Expanders
Operation Manual in
Appendix B