Shot Clock: What is the proper All Sport operation of game horns and shot clock horns?

Potential Symptoms

  •  What is the proper operation of game horns and shot clock horns controlled by the same All Sport console?
  •  Does the game clock's horn and shot clock's horn activate separately or at the same time?

Environment

  • BB Game Clock, Game End of Period Horn
  • Shot Clock, shot time Buzzer

Resolution

The game clock horn and the shot clock buzzer need to have a different audible tone when compared to each other for NCAA and NBA.  The tone produced from a standard scoreboard horn and a standard shot clock buzzer will be different.  However, the transparent shot clock horn is the same horn in a standard scoreboards.

For this reason the game clock horn will sound the same as the shot clock horn. 

The following table shows when the Game Clock horn and Shot Clock Buzzer will sound ON or OFF during certain game in progress events  


 
AUTO HORN [ENABLED]Game In Progress
Data Triggers
GAME CLOCK HORN WILL SOUNDSHOT CLOCK HORN WILL SOUND
OPERATOR PERFORMS
[HORN] button 
(All Sport or handheld)
[Y]GAME HORN (1)TrueTrue
[N]GAME HORN (1)TrueTrue
GAME EVENT
Game Clock = 0
[Y]GAME CLOCK = 0 (*)
AND
GAME HORN (2)
TrueTrue
[N]noneFalseFalse
GAME EVENT
Shot Clock = 0
[Y]SHOT HORN (2)FalseTrue
[N]noneFalseFalse
(1) Until released
(2) Approximately 2-3 seconds
(*) Not the specific trigger that affects the horn

Reference schematics for either/both game/shot clock or shot clocks.  An example might be: DWG202715 TB1 pins 2 & 3.  Notice that pins 2 & 3 are tied together so whenever either of those pins has a voltage on it the shot clock horn will blow.

KB ID: DD2093792


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