Filter
Top Products
Performance Tests
TDS 684A, TDS 744A, & TDS 784A Service Manual
4–71
Positive pulse
Negative pulses
Figure 4–29: Triggered Signal Range Test – 75 mV
p. Disconnect all test equipment (TSG121) from the digitizing oscillo-
scope.
5. Check 60 Hz Rejection.
a. Set up oscilloscope for 60 Hz Rejection Test.
H Use the keypad to set the Ch1 Fine Scale to 282 mV (press 282,
SHIFT m, then ENTER).
H Press WAVEFORM OFF.
H Press CH2.
H Press VERTICAL MENU.
H Use the keypad set the fine scale to 2 V (press 2, then ENTER).
H Press HORIZONTAL MENU.
H Use the keypad to set the horizontal scale (/div) to 5 ms (press 5,
SHIFT, m, then ENTER).
b. Set up 60 Hz signal generator (SG 502).
H Connect the output of the SG 502 to the CH2 input through a 50 W
cable. See Figure 4–30.