Philips PM 5508 Operating Manual page 24

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6. •
Check the bandwidth. The vertical black/white transitions should
be sharp and not "double" (risetime and ringing resp.).
7. • Check the step-function response. The vertical transitions should
'"' not show any overshoot.
8. • Check for mains-hum interference in the synchronisation of the
picture.
,,,,,
9. •Check the sensitivity of the receiver by means of control
"RF OUTPUT".
10. •Check the suppression of the sound intercarrier. No "sound"
should appear in the picture when switch "SOUND CARRIER" is
^
set to position "UNMOD".
11. • Check that there is no "I.f. sound in the picture" due to e.g.
microphony or expressive power consumption of the sound output
-..
stage. This should be done with switch "SOUND CARRIER" in
position "MOD".
12. • Check the proper functioning of the sound section of the receiver,
e.g. by operating switch "SOUND CARRIER".