Service manual

Note: If your scoreboard includes a battery (either internal or
external), turn the ON/OFF slide switch located inside the score-
board on the control board to the “OFF” position. Refer to Fig. 31
or 32, page 5-3.
b. Wait ten seconds. Manually flip the right-hand digit to display an “8”.
c. Plug the AC power cord back into the outlet. If you turned the battery
ON/OFF switch “OFF”, return the switch to the “ON” position. If the
digit displays a “0”, the control board is probably good. If nothing hap-
pens, either the control board is bad or the electrical power source is a
problem, go to Step 3 below.
d. Press the “TEST” key on the operator’s console. After several seconds,
all “8”s will appear then disappear on the scoreboard and console. The
board should now function normally. If the scoreboard functioned
“almost” normally but some area is not working, go to the specific
“Trouble Shooting” section of the manual that pertains to that part or
problem.
e. If the scoreboard still maintains the same problem, the following direc-
tions should help you determine where the problem may be. Follow the
directions carefully.
Check that there is actual voltage at the wall electrical outlet. Plug a lamp
or other 115 VAC electrical device into the outlet to ensure that there is
power coming from the outlet. If the electrical power supply is good, the
scoreboard’s control board is bad and will need to be returned for service.
Note: If your scoreboard has a battery, go to Step 5.
Check the data cable voltage passing through the cable using the OHM
meter, see Figure 45 and 46 on page 7-11.
Check the operator’s console. The only way to determine if the console is
good is to replace it with another console. All CTS consoles, regardless of
the sport, are the same electronically. If you have a spare console, or if
possible, can borrow one from someone who owns a CTS scoreboard, plug
in the second console to determine if the problem is solved. If the second
console solves the problem, then your original console should be returned
for service. If you do not have a second console to run a test, you need to
return your console to the factory for testing and service.
The audio system in your scoreboard is divided into two areas: the “voice”
section and the “sports tunes” section.
The voice section uses the microphone to change sound waves into electri-
cal energy; the console to amplify the electrical signal; and the data cable
to send the signal to the control board located inside the scoreboard.
The sports tunes use the microprocessor to generate the various musical
sounds and sound the horn.
Step 3
Step 4
Step 5
Audio System
7-2
Trouble Shooting-Audio
(Microphone, Public Address System and Sports Tunes)