Amstrad CPC464
A dear friend brought this computer for me on a trip from Spain, where these were much more common
Work done:
- Cassette drive repair
- Memory replacement
- Audio input
Exterior inspection:
Unfortunately, I forgot to take pictures of the outside before taking it apart. I will add new pictures soon.
Interior inspection:
On the inside I found a PCB is overall good condition
One of the capacitors had cracked and had to be replaced:
I also clipped the long leads, likely forgotten at the factory:
Cassette drive repair
When I got the computer, the tape drive was not engaging correctly. After cleaning and lubricating, it worked correctly again:
A common problem on these machines is a broken reset button for the tape counter. This was easily replaced with a 3D printed version:
Faulty RAM
Initially there were no issues with the computer itself, but after a while a fault developed that looked like a faulty RAM IC:
I used the fantastic Amstrad Diagnostics ROM by Noel Llopis to diagnose which IC was at fault:
Here is the replaced IC:
Clean up
The inside of the case and in particular the keyboard were very dirty, which is expected from a nearly 40-year-old computer:
After a full cleaning, the computer was assembled again.