EQ6/EQG/Atlas Mod Circuits

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MOD to Disable the Handcontroller's Buzzer/Beeper

 

Mod Steps

This page describes how you can disable the buzzer/beeper on your handpad controller.

The approach is to ground the base of the transistor driving the buzzer. Grounding it
will block any current from PIN39 of the PIC microncontroller from activating the
transistor.

Grounding can be done by soldering a piece of wire from the base pin of the transistor
to the ground line of the board.

Another option would be to put a switch instead of the wire so that you can manually
turn on/off the buzzer while on the field.

Figure 1 below is an image of mod. Make sure the board patterns you see on the image
is identical to one exactly you see on your own handcontroller. If this is not the
same, you may have to locate the components yourself and determine the tap points
based on the diagram below.

Figure 1: Mod image of the handcontroller board which shows how to disable the buzzer/ beeper

 

QUESTIONS AND INQUIRIES

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 DISCLAIMER:

  You can use the information on this site COMPLETELY AT YOUR OWN RISK.
  The modification steps and other information on this site is provided
  to you "AS IS" and WITHOUT WARRANTY OF ANY KIND, express, statutory,
  implied or otherwise, including without limitation any warranty of
  merchantability or fitness for any particular or intended purpose.
  In no event the author will  be liable for any direct, indirect,
  punitive, special, incidental or consequential damages or loss of any
  kind whether or not the author  has been advised of the possibility
  of such loss.