User`s guide

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If the problem you are experiencing fits a description below, try the solu-
tions suggested. If you need additional help, see “CONTACTING THE HELP DESK”
ON PAGE 6.
Nothing appears on the
scoreboard
Verify the following:
• The MP-70/50’s power cord is connected to a 120-volt grounded out-
let as instructed in “IMPORTANT PRECAUTIONS” ON PAGE 8.
• Power is reaching the outlet.
• When you turn on the MP-70/50, the start-up message, as shown
above, appears on the LCD display (the version number may vary). If
the LCD display is blank, try replacing the fuse on the back panel of the
MP-70/50 with a new, properly-rated fuse.
• The scoreboard is properly connected to the MP-70/50, as instructed
in
“SETTING UP THE MP-70/50” ON PAGE 9.
• Power to the scoreboard is turned on.
If you are using a wireless MP-70/50, make sure that these statements are
true.
• The antenna is in its full upright position.
• The CHANNEL and RADIO TRANSMIT mode switches are set correctly
as instructed in
“WIRELESS OPTION” ON PAGE 123.
• You are following the operating guidelines discussed at “GENERAL WIRE-
LESS OPERATING GUIDELINES” ON PAGE 134.
Troubleshooting