One of the few MSX of my collection. The computer was quite dirty, but since the internal components were tightly fitted, I didn’t want to disassemble it completely.
Here’s the dust under the keyboard:
I patiently cleaned every key… it’s a hassle but it’s always worth it.
Unfortunately one filter capacitor blew out and I had to review my decision not to disassemble the computer. I usually look for those filters before turning on a 30 years old computer, but this time I didn’t think about it.
Since I had to take apart the computer to clean its components after the explosion, I took the pictures for the teardown view:
The European version of this model (the P in the code means PAL) has a SCART video output.
How did you remove the arrows from the keyboard? I also have a HB-75 and the arrows doesnt work very well
I disassembled the entire keyboard, you just need some patience :-)
The black frame of the keyboard keeps the cursor keys in place. Once you remove it, you can easily remove them. Your problem is probably related to some dirt in the four buttons, you can try to use some compressed air.
Warning… compressed air cans may cause static charges when the air is forced out of the plastic tube/nozzle. Not good for chips!
Also the air can get very cold, causing thermal shock. Use sparingly.
We also used grounded vacuum cleaners as part of dust removal process in our workshop, to prevent static.
Lol, didn’t notice the old reply xD
Thanks for your help guys!