TB 9-6625-2347-35
(20) Repeat (16) through (19) above for minimum trace shift when setting CH 1
VOLTS/DIV from 10m to 20m.
(21) Position TI switches as listed in (a) through (c) below:
(a) CH 1 VOLTS/DIV to 20m.
(b) CH 1 AC GND DC to DC.
(c) SEC/DIV to .2 ms.
(22) Disconnect oscilloscope calibrator SOURCE/MEASURE CHAN 1 from TI CH 1
OR X input.
(23) Connect oscilloscope calibrator SOURCE/MEASURE CHAN 1 to TI CH 1 OR
X input using a 50Ω feedthrough termination.
(24) Set oscilloscope calibrator for a CH 1, EDGE mode output of 1 kHz and adjust
amplitude for 5 divisions of TI vertical deflection.
(25) Adjust C105 (fig. 2) for best front corner and C104 (fig.2) for best flat top.
(26) Set TI CH 1 VOLTS/DIV switch to 2.
(27) Adjust oscilloscope calibrator output for 5 divisions of TI vertical deflection.
(28) Adjust C111 (fig. 2) for best front corner and C110 (fig.2) for best flat top.
(29) Set oscilloscope calibrator to STANDBY.
(30) Move oscilloscope calibrator SOURCE/MEASURE CHAN 1 connection from TI
CH 1 OR X input to TI CH 2 OR Y input.
(31) Set TI VERTICAL MODE CH 1 BOTH CH 2 switch to CH 2.
(32) Set oscilloscope calibrator for a CH 1 VOLTAGE output of 100 mV at 1 kHz.
(33) Adjust R286 (fig. 1) for exactly 5 divisions of TI vertical deflection (R).
(34) Change oscilloscope calibrator output amplitude to 10 mV.
(35) Set TI CH 2 VOLTS/DIV switch to 2m.
(36) Adjust R245 (fig. 2) for exactly 5 divisions of TI vertical deflection (R).
(37) Set oscilloscope calibrator to STANDBY.
(38) Set TI CH 2 AC GND DC switch to GND.
(39) Set TI CH 1 VOLTS/DIV switch to 10m.
(40) Adjust CH 2 ⇕POSITION control to position trace on center horizontal
graticule line.
(41) Set TI CH 2 VOLTS/DIV switch to 2m.
(42) Adjust R238 (fig.2) to position trace on center horizontal graticule line.
(43) Repeat (39) through (42) above for minimum trace shift when setting CH 2
VOLTS/DIV from 10m to 2m.
(44) Set TI CH 2 VOLTS/DIV switch to 20m.
(45) Adjust CH 2 ⇕POSITION control to position trace on center horizontal
graticule line.
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