PCBs, Playback Wing 4, Playback board and Playback Board CPU, correct service part numbers

Symptoms/Issue

The numbers silk screened on the PCBs are for the un-programmed PCB which will not work. Use the service part numbers below

Fix/Solution

1. Use part number 80040050EF for the Playback PCB
2. Use part number 80010232EF for the Playback CPU PCB