exxos's Atari, Amiga & retro forum

I have an issue on one of my STFM's I've been tracking down.
Basically, the 2 HD74LS244P chips are showing signs that they could have overheated, their surface is gloss instead of the usual matte.

I don't see the same chip in the store.

Can i assume that the 74LS244N 3 STATE BUFFER DRIVER will do the same, or am i looking at the wrong chip?

any help would be appreciated.

Also, EXXOS, have you thought of doing a recap kit for the ST motherboard?

RetroTechRalph wrote: 28 Dec 2021 22:54 Can i assume that the 74LS244N 3 STATE BUFFER DRIVER will do the same, or am i looking at the wrong chip?

https://www.exxosforum.co.uk/atari/store2/#0177

RetroTechRalph wrote: 28 Dec 2021 22:54 Also, EXXOS, have you thought of doing a recap kit for the ST motherboard?

It has been mentioned many times. Aside from lack of time and space, I would not blatantly replace capacitors unless I have specifically tested the circuit which I am replacing them in to make sure nothing will malfunction. Which is actually a phenomenal amount of work. So it would unlikely ever get done. There are recap kits for the PSU and STFM video circuit as they are known to go bad.