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Performance Tests
Performance Verification Procedures
Press VERTICAL MENU.
If needed, press the main-menu Fine Scale.
Use the keypad to set fine scale to 500 mV (press 500, SHIFT,
m, then ENTER).
Connect another the PAL signal source’s composite signal con-
nector (labelled COMPST on the TSG 121) through a 75 cable
and a 75 terminator to the CH2 input (See Figure 1-34).
BNC T
Connector
Signal
Generator
SG 502
PAL Signal
Source
TSG121
COMPST
COMPST
75
Terminator
75
Cable
75
Cable
50
Cable
75
Terminator
Figure 1-34: Subsequent 60 Hz Rejection Test Hookup
CONFIRM that the TRIG’D LED stays on and that the waveform
on screen is stable. Stable means the waveform does not move
horizontally or vertically. Also, confirm that the waveform on the
screen has one positive pulse and a number of negative pulses
(See Figure 1-35).