Checking The (G-Y) Output Signal Of The Matrixing Circuit - Philips PM 5508 Operating Manual

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Fig. VII
-37.
Correct (G
-Y)
signal
4. Checking the (G-Y) output signal of the matrixing circuit
— Connect the Y-input of the oscilloscope to the "green" grid of the
picture tube via an attenuator probe.
— Trigger the oscilloscope externally with the line sync. pulses from
sockets "SYNC." (switch "SYNC." in position "LINE").
— Adjust the time base settings of the oscilloscop so that one TV-line
appears on its screen.
— Depress push-button "MATRIX".
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