Tektronix 1740A Series, User Manual

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Performance Verification
4–34
1740A/1750A/1760 – Series Service Manual
Figure 4–7: Audio Display
f. Set the function generator frequency to 500 kHz.
g. Check – that the audio trace extends past the compass rose.
h. Select TIMECODE DISPLAY.
i. Check – for a display amplitude of 98 IRE (700 mV PAL).
33. Remote Sync
Requirement – Remote Sync Frequency: 30 Hz, 90 Hz (25 Hz, 100 Hz
PAL).
a. Replace the color bar signal on the CH-A INPUT with the output of the
function generator. Leave the loop-through terminated.
b. Connect the Trig Out from the function generator to the Remote Sync
cable adapter. See Figure 4–2.
c. Enter the PRESET menu and select RECALL FACTORY. Exit the
PRESET menu. Select 1 FIELD SWEEP.
d. Set the function generator for a sine wave output. Adjust the generator
frequency to 30 Hz, and the amplitude for a 1 V display on the
1740A/1750A/1760–Series.
e. Check – the display for a locked sine wave.
f. Set the function generator frequency to 60 Hz.
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