TB 9-6625-2217-24
11. Channel C Sensitivity
a. Performance Check
(1) Press TI RESET/CONTINUE key.
(2) Connect signal generator RF output to TI INPUT C 50 .
(3) Press FUNCTION
key to select INPUT C.
or
(4) Set signal generator frequency to 1300 MHz and amplitude to 1 mV. Slowly
increase signal generator amplitude until TI displays a stable indication at approximately
1300 MHz. If signal generator amplitude is not less than 75 mV; perform b below.
(5) Repeat technique of step (4) above at 1000 MHz, 500 MHz, 100 MHz and
40 MHz. If signal generator amplitude is not less than 15 mV; perform b below.
(6) Disconnect signal generator from TI.
b. Adjustments
(1) Connect signal generator rear panel EXT REF INPUT to TI rear panel 10MHz
STD. OUTPUT.
(3) Set signal generator frequency to 1000 MHz and amplitude to 8 mV.
(4) Slowly adjust R27 (fig. 1) ccw to obtain a stable TI indication of 1000.00000
0.00001 with GATE LED flashing.
(5) Set signal generator amplitude to 7 mV.
(6) If TI GATE LED is flashing; repeat (3) above through (6).
a. Performance Check
(1) Cycle POWER ON/OFF pushbutton from OFF to ON.
(2) Connect multimeter INPUT HI to TI rear panel A TRIGGER LEVEL
OUTPUTS and INPUT LO to TI chassis ground.
(3) Press TI keys INPUT A TRIG LEVEL, 5, INPUT A TRIG LEVEL.
(4) Multimeter will indicate between +4.94 and +5.06 V dc.
(5) Press TI keys INPUT A TRIG LEVEL, 5, SHIFT, +/-, INPUT A TRIG LEVEL.
(6) Multimeter will indicate between -5.06 and -4.94 V dc.
(7) Press TI keys INPUT A TRIG LEVEL, 0, INPUT A TRIG LEVEL
(8) Multimeter will indicate between -0.010 and +0.010 V dc.
(9) Connect multimeter INPUT HI to TI rear panel B TRIGGER LEVEL OUTPUTS.
(10) Press TI keys INPUT B TRIG LEVEL, 5, INPUT B TRIG LEVEL.
(11) Multimeter will indicate between +4.94 and +5.06 V dc.
(12) Press TI keys INPUT B TRIG LEVEL, 5, SHIFT, +/-, INPUT B TRIG LEVEL.