Shopping a PCB

From: “Frank-Rainer Grahl”
Newsgroups: rec.games.pinball

Checking fuses

CPU

taking out cpu

replacing battery holder
replacing 0 Ohm resistors for language settings with Dip Switch
New rom version.

PDB:

Replace burned GI haeaders

DMD Controller:

Replace 5W 4K7 resistor at the bottom of the board and mount it farther away from
the PCB. If it looks burned I replace the whole section.
The resistor is monted too near the pcb and is in my opionion responsible for 50%
of all driver failures. Get’s too hot, burns the boards and other parts around
suffer because of this.