Vintage Audio FM MPX Adjustment

[jheatac]

Hello,

I am very much a beginner at electronics.

I am working on an old receiver and looking through the service manual at tuning in the FM MPX section and it directs me to connect the vertical and horizonal axis of my scope to different pins.

I have a Tek TDS754C... Is this possible with this scope or would I need an analog scope to make this work?

Thanks

[xwarp]

Should have X-Y mode on your scope.

[capt bullshot]

Most DSO have an XY mode, e.g. in the Display Menu. This uses two input channels and maps one of them to the X axis.
Anyway, the resulting display is often rather poor in comparison to a real analogue oscilloscope.

As the description says, you want to to display a sine wave and a derived sawtooth wave that are stationary. You should be able to adjust this by monitoring these waveforms in "normal" XT mode, the goal is to see both stable, not just one of them stable and the other moving.