Service manual

To wire data cable to the phone plug, see Fig. 48 below.
Figure 48
If the speaker does not emit sound, execute the following:
Confirm that the speaker connector is plugged into the proper place on the
control board. You may plug into either of the two available connectors.
Confirm that the microphone is plugged into the left side of the operator’s
console and that the data cable is plugged into the right side of the
operator’s console.
Check that the ON/OFF slide switch, located on the control board, is in the
ON position.
Figure 49
Check the speaker using the OHM meter. The reading should be 5 to 10
OHMS see Fig. 49 above.
If none of these suggestions are successful, return the speaker to the
factory for service.
If your scoreboard uses an optional battery (either internal or external),
proper care of the battery is essential. The gel-cell battery should be fully
recharged after each use. If the battery is low/dead, it could overload the
power supply and prevent the scoreboard from working. “Bypass” the bat-
tery by unplugging the battery connector on the control board. Test the
scoreboard using AC power only. If the scoreboard works, the battery is
bad and needs to be recharged or replaced.
To check the battery, use a volt meter.
Step 1
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Step 5
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Trouble Shooting-Speaker
Trouble Shooting-Optional Battery