GTO Keypad Firmware - Current and Prior Versions

This page will contain links to prior versions of the keypad for people who wish to load an earlier version. Please refer to these documents when making your decision:

GTO Keypad Controller - History of Revisions. This document will show the evolution of keypad features from the earliest versions.

Bug Lists for Keypad Versions 4.07 and Above. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher.


Keypad Flash Upgrade Procedure - Overview
The flash upgrade will be accomplished in two distinct operations:
  • Download the Keypad Upgrade Tool (a Windows based utility that enables the download) which contains the Keypad Flash Update (actual changes to the keypad) from this site onto your computer hard drive. You will need a password to access this area of the website. If you do not have the password, please contact Astro-Physics. We may ask for your mount or keypad serial number to assure that you are authorized to access this area of our site.
  • Upload the program to your keypad. This procedure must be done from a PC (my apologies to you devoted Mac fans) with Windows versions 95/98/2000/NT/ME/XP/2003. The actual upload procedure to the keypad requires that the program be routed through the ROM chip in the GTO control box (you must have chip version C or above). In order to accomplish this, your mount (actually just the control box) must be set up with power near your PC.


Keypad v4.12
Instructions: Download the Firmware from This Site.
Instructions: Upload v4.12 to Your Keypad. Please print these instructions for your reference.
Firmware: keypad412.exe

Manual: GTO Keypad version 4.1x Dated: July 22, 2004. This manual is currently under review. Please return at a later date for the revised edition. It is in PDF format and requires Adobe Acrobat Reader 4.0 or higher.


Keypad v4.11
This version is not offered for download since it contained significant bugs. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher. We encourage you to upload the most recent version of 4.x in its place.


Keypad v4.10
This version is not offered for download since it contained significant bugs. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher. We encourage you to upload the most recent version of 4.x in its place.


Keypad v4.07
Version 4.07 is not offered for download since it contained significant bugs. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher. We encourage you to upload the most recent version of 4.x in its place.


Keypad v3.2
This version was not available through an internet download, however we loaded it onto new mounts. It is a very solid, trouble-free version.

Instructions: Download the Firmware from This Site.
Instructions: Upload v3.20 to Your Keypad. Please print these instructions for your reference.
Firmware: keypad320.exe

Manual: GTO Keypad Controller version 3.2x, dated 11-18-02. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher.


Keypad v3.09
This is the first version of the keypad that was available through an internet download. It is a very solid, trouble-free version.

Instructions: Download the Firmware from This Site.
Instructions: Upload v3.09 to Your Keypad. Please print these instructions for your reference.
Firmware: keypad309.exe

Manual: GTO Keypad Controller version 3.0x, dated 09-24-01. This document is in PDF format and requires Adobe Acrobat Reader 4.0 or higher.
Addendum to Manual: GTO Keypad Controller v3.0x


Download the FREE Acrobat Reader.

Thank you!
We extend special thanks to you, our customer and friend, for your thoughtful suggestions and recommendations. Many of them are implemented in the changes to date and others will be incorporated in future versions. You have great ideas and we appreciate your willingness to share them with us.

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This page was last modified: October 9, 2004

Astro-Physics, Inc.
11250 Forest Hills Road, Rockford, IL  61115, U.S.A.
Phone: 815-282-1513   Fax: 815-282-9847