Showing posts with label untouched. Show all posts
Showing posts with label untouched. Show all posts

Sunday, April 10, 2016

C64 G - Black screen :(

I got my hands on a C64 G, a nice and beautiful one. Warranty seal was untouched so I had high hopes when I turned it on... then nothing happened.


Ok, that's bad.
I quickly plugged in another PSU and voila, the machine was... almost alive.
Black screen, nothing else.


That means, I had to remove the warranty seal and check what's going on inside the C64.
The memory chips were heating up very quickly, so it seemed obvious they were defective.


Others were fine, no presence of overheating so I thought the solution will be simple.
I started to search for replacement chips and sockets immediately.


Ordered a pack of sockets (sidenote: it's much cheaper if you order 20+ pieces than order only 2...) and finally found XX464 memory chips as well for a good price. So, I removed the defective chips and soldered the sockets.


And...
After memory replacement it still doesn't work :(
Black screen.
So I have to dig deeper and find out what might be the problem.


I even tried to touch the G-spot but didn't help :(
 

.....



Today's music: X Marks The Spot - 64k Intro by Portal Process