Power Supply Repair
From C64-Wiki
Jump to navigationJump to searchThe old Commodore 64 power supplies are prone to failure with over-voltage on the 5V line that will destroy your computer. This page describes how to fix your power supply.
To test your power supply see Power Supply Failure
WARNING[edit | edit source]
Extreme caution needs to be taken to avoid electrocution.
This exposes high voltage AC terminals. Do not perform this repair if you do not know what this means or if you do not know how to take the necessary precautions. Proceed with this repair at your own risk.
Repairable Power Supplies[edit | edit source]
- 902503-02
902503-02[edit | edit source]
American model that is easily repairable since it has screws to remove the cover for easy access to the parts.
Over Voltage Repair[edit | edit source]
Required Tools[edit | edit source]
- P2 Screw Driver
- 7/32" or 5.5mm Hex Socket
- AC and DC Volt Meter with 0.1V DC Accuracy
- Soldering Iron with Solder and Desolder
Required Parts[edit | edit source]
5V Voltage Regulator. Only one of the following:
Instructions[edit | edit source]
Fuse Replacement[edit | edit source]
To be continued
Rectifier Replacement[edit | edit source]
To be continued
Capacitor Replacement[edit | edit source]
4700uf, 16 volt
Cord Repair[edit | edit source]
To be continued
Heat Sync for Voltage Regulator[edit | edit source]
To Be continued
