ls74s201n

[lee o callaghan]

hi guys i’m trying to fix an arcade board no booting up but making some strange noises i’m a newbie to board repair but the ls74s201s get a bit hot is this normal ??

 

[sukhbir]

That's a schotty logic which is power hungry but faster compared to the LS version of logic,they normally run warmer.

 

[lee o callaghan]

thanks

 

[bones]

Yes these do get very hot, I've seen some boards where people diy a heatsink on to them, but probably not needed.