PowerBook 1.67 power button & keyboard backlight problems
Pressing or squeezing the upper case between power button and delete key sometimes yields sleep/cancel/restart screen, at other times yields flashing of sleep light, although the G4 is not sleeping. Is the power button assembly replaceable apart from a complete upper case? Could simple shorting to ground be the problem?
Keyboard lighting works as it should after either an OS update, or permissions repair. However, after the first sleep cycle after an update or permissions repair, keyboard lighting will not function at all-have to resort to Lab Tick manually. I do not know if this is software related, but appears to be.
Mac OS X 10.5.8 (9L30); 160GB HDD; 2GB RAM; No other known problems.