Component on case bottom of 48S

[mfleming]

(10-31-2019 05:52 PM)KenW Wrote:  I am curious because my 48S has/is suffering from a power-on problem which requires me to apply pressure on the case just above the 'B' key. Most of the comments I have seen assert that this issue is due to poor contact between the keyboard connector and the main PCB, so I disassembled my 48, cleaned the contacts, and reassembled and the problem was reduced in that I now need to apply less pressure but must still apply some pressure.

You need to replace the springy material beneath the keyboard connector, or at least pull it upwards between thumb and forefinger to stretch it out again. The material presses the keyboard contact against contacts on the pcb, but it loses its springiness with age and contact is lost. If/when you open the case again, give that a try for a permanent fix.