Thursday, July 4, 2019

Repair : Bad C64 Colour RAM

One of my first C64C Ebay purchases was a complete "working" C64C with a 1541II and a number of games.

When I got it, it was great but it just looked washed out.  It wasn't until I tried a few more games that I realized that something was actually wrong.




. . .

To the Internet

. . .

Everything we need these days is a quick search on Google.  I found two fantastic site right away.

Ray Carlsen's amazing website : http://personalpages.tds.net/~rcarlsen/

Pictorial C64 Fault Guide website : https://derbian.webs.com/c64diag/

The first thing I did was order a C64 power supply from Ray.  I really did not want to damage my C64 any further.

The second thing I did was buy a cheap desoldering gun and some DIP sockets.  Get the right tools and do it right the first time.

The last thing I did was get a couple of colour RAM chips.

. . .

So the process was pretty simple.

Add a little solder and use the desoldering gun to free all of the pins
Use some solder wick to remove the remaining solder with your soldering iron.
Solder on a DIP socket ( always put in a socket . . . always ).
Push the chip in.








Behold . . . real colour . . .




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