Commodore Amiga 500
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Capacitors (Commodore Amiga 500)
amiga 500 capacitors recap
Power Supply (Commodore Amiga 500)
The first check is to make sure your power supply has the required voltages when not connected. The Amiga 500 has -12V (...
Minimum Boot (Commodore Amiga 500)
A good place to start if you are having issues, is a minimum boot. The following components could all be removed if you ...
Fat Agnus (Commodore Amiga 500)
The Fat Agnus chip ( A ddress G e n erator U nit s ) controls the address / memory registers and access and outputs vi...
Gary (Commodore Amiga 500)
The Gary chip provides bus traffic control signals for the address and data bus. It was a consolidation of a large amoun...
Denise (Commodore Amiga 500)
The Denise ( D isplay En abler) is primarily the visual output IC. It uses up to 6 bitplane data registers to get the d...
Odd CIA (Commodore Amiga 500)
The Odd CIA handles the keyboard, parallel port and part of the floppy ready. If you have a fault between the CIA and th...
Chip RAM (Commodore Amiga 500)
A19If you are having issues with the chip RAM your best test is to chuck in a DiagROM, boot up the Memory Tests, then Ex...
Jumpers (Commodore Amiga 500)
The Amiga 500 has various jumpers on the board. Below is the explanation as to what each does. JP2 The JP2 is located to...
Common Faults (Commodore Amiga 500)
Below are some quick tips on where to typically look if you encounter specific bugs or issues. These are not definitive ...