Daktronics C44 Manual do Utilizador descarregar pdf (Página 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?

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