I got a new PowerBook 3400c/200 (my second) - the Kanga must wait some more days, as it has more bugs.
So the 3400c was said to have a buggy keyboard, nearly all keys don't work...
The truth was, the PRAM battery leaked and dripped down around the keyboard connections. So I disassembled the whole PB, additionally repairing some different bugs (missing rear feet and feet housing etc.).
Then I carefully cleaned the board, keyboard connectors and flex cables. After that the keyboard worked 90 percent. So I swapped it with a 5300 keyboard and now only 3 rightmost keys don't work.
One of them is the return key, arrrrrrgh!!
So, do you have any ideas, what to do now?