Apple IIe: If Built-in Diagnostics Run on Power-Up



This article describes what to do if an Apple IIe's built-in diagnostics
run when the system is powered on.

PROBLEM DESCRIPTION: When the Apple IIe is turned on, the system's built-in
diagnostic program starts. (This program is normally initiated by pressing
Control, Reset, Open Apple, and Closed Apple -- or by holding down Open Apple
and Closed Apple at power on.) This is repeated until the system is powered
off.
CAUSE: Keyboard or Keyboard Cable

BEFORE YOU START: Remove all peripheral cards from the Apple IIe
to eliminate them as a possible problem.

CURE:

1) Remove any attached Joystick. The five buttons correspond to
the Open Apple keys.

2) Verify that the keyboard cable is securely attached to the logic board and
to the keyboard.

3) If the problem persists, replace the keyboard cable.

4) If the problem persists, replace the keyboard.

5) If the problem persists, refer to the Level I Technical Procedures.

To see a General Troubleshooting procedure, search on the product's name and
HTS and GTS.



Published Date: Feb 19, 2012