TB 9-6625-2069-24
d. Press RCL pushbutton and enter 0 into TI.
NOTE
Disregard display error until all data listed in e (1) through (9)
below is entered into TI.
e. Press pushbuttons and enter data as listed in (1) through (12) below: (Both channels
for option 020.)
(1) PERIOD to 20 ns.
(2) DBL PLS to 20 ns.
(3) DELAY to 0 ns.
(4) WIDTH to 10 ns.
(5) LEE to 3 ns.
(6) TRE to 3 ns.
(7) BURST to 0.
(8) HIL to 1.0 V.
(9) LOL to -1.0 V.
(10) OUTPUT MODE to ENABLE, A SEP B.
.
(11) CHANNEL A to NORM, 50
(option 020).
(12) CHANNEL B to NORM, 50
f. Allow 45 minutes for TI to warm-up.
g. Press line ON/OFF pushbutton to OFF and then press ON/OFF pushbutton to ON.
If TI does not retain data entered in e (1) through (12) above, check TI batteries.
h. Press OUTPUT MODE pushbutton to ENABLE.
8. Period Accuracy
a. Performance Check
(1) Connect TRIG OUTPUT to frequency counter A input and set for period
measuring function with 50 impedance.
(2) If frequency counter does not indicate between 19.1 and 20.9 ns, perform b below.
(3) Repeat technique of (2) above, using period data listed in table 4. If frequency
counter does not indicate within limits specified for any period data and if adjustments
were not performed in (2) above, perform b below.
b. Adjustments
(1) Press ON/OFF pushbutton to OFF position.
(2) Remove A23 board (fig. 1) from TI and reconnect, using extender board.
