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Old 21 March 2009, 21:13   #8
JuvUK
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Join Date: Oct 2008
Location: Cheltenham/UK
Age: 48
Posts: 312
do the keyboard lights flash at all?

Failed Test
Red ROM Error - Reseat or replace Green CHIP RAM error (reset AGNUS and re-test) Blue Custom Chip(s) Error Yellow 68000 detected error before software trapped it (GURU) The system performs the following test sequence:
  1. 1. Delays beginning the tests a fraction of a second to allow the hardware to stabilize.
  2. Jumps to ROM code in diagnostic card (if found)
  3. Disables and clears all DMA and interrupts.
  4. Turns on the screen.
  5. Checks the general hardware configuration.
    If the screen remains a light gray colors and the tests continue, the hardware is OK.
    If an error occurs, the system halts.
  6. Performs checksum test on ROMs.
    If the system fails the ROM test, the screen display turns red and the system halts.
Keyboard
One Blink ROM Checksum failure Two Blinks RAM test failed Three Blinks Watchdog timer failed Four Blinks A short exists between two row lines or one of the seven special keys (not implemented)
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