1978 CB750A Alarm Tone

[Jabulani]

I have searched high and low and have found nothing, mostly because I don't know what to search for.  I have a 1978 CB750A (Automatic).  When I turn the key on an alarm tone of some sort comes on, my dad mentioned that it might be caused by a low battery strength.  I have charged my battery and it still does the same thing.  It continues to go off even after the bike is running.  Everything that I could think of was turned off (Parking Brake / Kick stand up).  Like I said I have been unable to find any information on this problem so any suggestions would be appreciated.

Stephen

[Re-run]

The only alarm I know of is a turn signal buzzer that is supposed to go off when you use the signal switch. It is right under the headlight and is about the size of a 50 cent piece around and cased in rubber.

[Jabulani]

Figured it out... There was a short in the wire for the Parking Brake signal to signal whether it was engaged or not.  

[Re-run]

Thats funny! A parking brake on a bike! I know it is an A but not many bikes have em!