Daktronics C44 - Manual (Page 50)

4-2 Maintenance &
Troubleshooting
Tree Problems
Symptom/Condition Possible Cause/Remedy
Tree does not light at all • Check power and fuse to tree
• Check power to isolation interface
• Check bottom left corner of screen for SLCK
• If SLCK is there, check power to starter’s box
interface
• Check SBI to see if 3 LED’s are lit, Trans and Rec
leads from SBI to isolation interface may be
switched
• Check SBI Trans and Rec LED’s on isolation
interface
• Check communications cable which transmits data
from C-44 to SLEB
Bulb in tree not lit • Change bulb
• Check socket and wiring
• Change driver board
Bulb in tree stays lit • Change driver board
Tree Flickers • Check Grounding wires in Start line Box
Printer Problems
Symptom/Condition Possible cause/remedy
Printer not working • Check to see if printer is enabled at C-44
• Check power and connectors
• Check to see if printer select light is lit
If Log printer • Check communications cable which sends data to
log printer
If E.T. printer • Check time slip printer interface LED’s
• Check E.T. printer data LED on isolation interface
• Check E.T. printer fault LED on isolation interface
• Check communications cable which sends data to
E.T. printer
Display Problems
Symptom/Condition Possible Cause/Remedy
No display at scoreboards • Enabled in C-44 Configuration Menu?
• Check power to isolation interface and displays
• Check display transmitter board In C-44,
(Drawing A-55998) which sends data to displays
via isolation interface.
• Check for + 12VDC on signal input of driver.
Dial-ins not showing • In the scoreboard enable mode, was a Y placed in
the dial-in?
• Is the F5 key being depressed?