Figure 2. Tektronix, Type 7D20 top view

TB-9-6625-2164-35 Digitizer Tektronix Type 7D20 Manual
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TB 9-6625-2164-35

u. Connect multimeter negative lead to TP902 (fig. 2) and positive lead to J550 (fig. 4)

and adjust CH 2 TRIGGER OFFSET R445 (fig. 4) for 0 V 2 mV dc indication on

v. Remove all connections from TI.

w. Press MENU/TEST and MEMORY DISPLAY 4, 5, 6 and MENU/TEST pushbuttons.

x. Set CH 1 VOLTS/DIV switch to 100 mV.

Figure 2. Tektronix, Type 7D20 top view - adjustment locations.

y. Press CH 1 DC pushbutton.

z. Set TIME/DIV switch to 20 s.

aa. Press TRIGGERING/MODE AUTO pushbutton.

ab. Press TRIGGERING/COUPLING AC and HF REJ pushbutton.

ac. Connect function/arbitrary generator Output to CH 1 input, using 50 Ω

termination, and set for Sine operation.