Philips MC-M570/21 Service Manual page 47

Service Hints
H
Measuring point : gate-signal of the FETs
I
Measuring point :
Digital output signal.
J
Measuring point :
The following three signals are measured after output filter
5101 with different timebases.
11-6
K
Measuring point :
After common mode coil 5102 - the audio signal is restored.