Version 4.19.3 Program Code for Astro-Physics GTO Keypad

The firmware of the Astro-Physics GTO Keypad controller can be updated to version 4.19.3 from this page by following the procedures below. This firmware contains all program logic for the functions, menus, entry screens and all other aspects concerned with the operation of the keypad. It also includes the calculated values of the solar system objects and calibration stars. The keypad version number displays when you start your keypad. If you need to download the object database firmware, please refer to either of these links for details:

Version 4.19.3 can be uploaded to all Keypads, regardless of age.

Keypads with version 4.19.3 can be used with the following control boxes: GTOCP1, GTOCP2, GTOCP3 and GTOCP4. However, if your GTOCP4 has version P02-01 or later firmware, refer to Version 4.19.5 for Astro-Physics GTO Keypad-Code Load Only.

* * Check These Before You Start * *

Release Notes and History of Revisions
GTO Keypad - Release Notes and History of Revisions - PDF document

Instructions for Uploading Firmware to Your Keypad
Follow the Instructions for Uploading V4.19.3 To Your Keypad. We suggest that you print them as a reference.

Download Program to Your Computer
Keypad 4.19.3 and Upgrade Tool This includes both the Keypad Upgrade Tool and Keypad Flash Update version 4.19.3 as one download file. File size: about 3.7 MB
IMPORTANT - Uninstall any previous versions of the Keypad firmware from your computer before installing the new files.
Click on the above link to initiate the download. Make note of the location that the file was stored on your computer. Find the Keypad_Loader_V4193.exe file that you just downloaded. Click on it to run the installer.

Keypad Manual
GTO Keypad Controller, V 4.19.3 - PDF document

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