Here is a test:
1.Turn off the player
2. insert cd
3. start a timer (stop watch)
3. Turn on the power button.
4. keep shorting the SW4 (play button) the top trace, to the bottom trace.
Do the shorting as pulses(the play button is usually the pause button also)
5. stop the timer when the cd starts to play.
What I am looking for is the delay in the cd player for the user interface.