Commodore 64: Difference between revisions

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(→‎Known Issues: Added note about using a Commodore Saver from Ray Carlson when using an original PSU)
(→‎Known Issues: Changed formatting to be more readable, added link for diy psu)
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== Known Issues ==
== Known Issues ==


* Catastrophic Failure of Original Power Supply
=== Catastrophic Failure of Original Power Supply ===
**The voltage regulator on the 5V DC output fails routinely, producing a large voltage spike that fries the chips on the C64's mainboard.<ref>McDonald, Jay (April 2020). [https://retrogamestart.com/answers/replace-c64-power-supply-voltage-failure-will-kill-your-c64 "Replace That C64 Power Supply: Voltage Failure Will Kill Your C64"]. ''RetroGame Start''.</ref>
 
***Solution: Only use a modern aftermarket power supply at all costs (the original power brick is virtually impossible to repair on account of Commodore filling the housing with epoxy)
==== Causes ====
***Solution: If using an original power supply then an over-volt protector, such as a Commodore Saver from Ray Carlson, should be used.
The voltage regulator on the 5V DC output fails routinely, producing a large voltage spike that fries the chips on the C64's mainboard.<ref>McDonald, Jay (April 2020). [https://retrogamestart.com/answers/replace-c64-power-supply-voltage-failure-will-kill-your-c64 "Replace That C64 Power Supply: Voltage Failure Will Kill Your C64"]. ''RetroGame Start''.</ref>
 
==== Solutions ====
 
*Only use a '''modern aftermarket power supply''' at all costs (the original power brick is virtually impossible to repair on account of Commodore filling the housing with epoxy)
*If using an original power supply then an '''over-volt protector''', such as a Commodore Saver from Ray Carlson, should be used.
*A new power supply '''can be built''' with minimal effort using a small prebuilt 5VDC supply and a 9VAC transformer. Dave Farquhar has [https://dfarq.homeip.net/build-your-own-commodore-64-power-supply/ an easy guide] on how to do this.


== Disassembly Notes ==
== Disassembly Notes ==

Revision as of 13:02, 13 July 2022

This device is in the WorkNeeded:OriginalParts category because it was flagged as missing information on the original parts. It may have replacement parts listed but those cannot be assumed to be identical to the originals. If you have a list of the original parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
This device is in the WorkNeeded:ReplacementParts category because it was flagged as missing information on replacement parts. If it has the original parts listed you may be able to search for replacements using the parametric searches available from parts distributors. If you have or make a list of replacement parts, please feel free to add them by copying the relevant table from EditorsToolbox:Tables
This device is in the WorkNeeded:General category because it was flagged as missing general information about the device. The information may be incomplete, using default text, or inaccurate and should be verified with external sources if possible. If you can add or correct information on this page, please feel free to edit it and do so.
Commodore 64
Preliminary Information
Release Year 1982
Leak Risk Medium
Batteries None
Mounting Technology Through Hole, Sockets
Capacitor Types Aluminum Electrolytic, Tantalum, Ceramic, Polymer
Destructive Entry No

This is a template page for creating new pages for devices, troubleshooting them, part lists, and other repair info.

Known Issues

Catastrophic Failure of Original Power Supply

Causes

The voltage regulator on the 5V DC output fails routinely, producing a large voltage spike that fries the chips on the C64's mainboard.[1]

Solutions

  • Only use a modern aftermarket power supply at all costs (the original power brick is virtually impossible to repair on account of Commodore filling the housing with epoxy)
  • If using an original power supply then an over-volt protector, such as a Commodore Saver from Ray Carlson, should be used.
  • A new power supply can be built with minimal effort using a small prebuilt 5VDC supply and a 9VAC transformer. Dave Farquhar has an easy guide on how to do this.

Disassembly Notes

Warnings or tips to disassemble then device

Original Parts

Basic PCB Name

Capacitor Specifications and Footprint Information
RefDes Qty Capacitance Voltage Mount Diameter/Size Temp Type Brand Series

Note model numbers and board revisions down here

Replacement Parts

Individual Components

Capacitors
RefDes Qty Compatible Part Number Order Links
Digikey

If parts are not available or different selection is preferred, you can use the values in the Original Parts section to perform a parametric search.

Kits

Related Links

References

  1. McDonald, Jay (April 2020). "Replace That C64 Power Supply: Voltage Failure Will Kill Your C64". RetroGame Start.