TM 11-6625-2925-10/TO 33A1-10-242-1
display can be obtained with the Main Triggering COUPLING
switch set to AC, AC HF REJ, and DC, for both the positive
and negative positions of the SLOPE switch (Main Triggering23. Check that a stable display can be obtained with the
LEVEL control may be adjusted as necessary for a Dsetlayableed Triggering COUPLING switch set to AC and DC for
display).both the (+) and (-) positions of the SLOPE switch (Delayed
Triggering LEVEL control may be adjusted as necessary for a
18. Change the Main Triggering SOURCE switc¸10.h to EXT stable display).
Set the oscilloscope Calibrator for 4 volts at 1 kilohertz and
adjust the Amplifier plug-in unit Volts/Div switch for about 24. Change the Delay4ed Triggering SOURCE switch to EXT.
divisions of display. Check that a stable displayConnect a 0.4 v can beolt, 1 kilohertz signal from the oscilloscope
obtained with the Main Triggering COUPLING switch set Calibrator to the DtoLY'D TRIG IN connector. Check that a
AC, AC HF REJ, and DC, for both the positive and negativstable displaye can be obtained with the Delayed Triggering
positions of the SLOPE switch (Main Triggering LEVEL CcontrolOUPLING switch set to AC and DC, for both the (+) and (-)
may be adjusted as necessary to obtain a stable displaypositions ).of the SLOPE switch (Delayed Triggering LEVEL
Remove all connections from the oscilloscope system.control may be adjusted as necessary for a stable delayed
sweep display).
19. Set the Main Triggering COUPLING switch to AC and
SOURCE switch to INT. Connect a 1 kilohertz Calibrator
signal from the oscilloscope to the Amplifier plug-in HIGH-FREQUENCY SYNCHRONIZAunit InputTION. Perform the
and adjust for about 4 divisions of display amplitude. Adjustfollowing procedure to obtain a triggered alternate, normal, or
the Main Triggering LEVEL control for a stable displaydelay. ed sw Seteep with a 100 megahertz to 500 megahertz input
the MODE switch to NORM and check for a stable displaysignal:.
Change the MODE switch to AUTO and adjust the LEVEL
control for a free-running display. Change the MODE switch toNOTE
NORM and check for no display. 20. Adjust the MainTo check HF SYNC operation, a signal
Triggering LEVEL control for a stable display. Change thesource frequency between 100
Main Triggering MODE switch to SINGLE SWEEP. Press themegahertz and 500 megahertz is
RESET button and check for one sweep as the RESET buttonrequired. If a 100 to 500 megahertz
is pressed. Remove the 1 kilohertz signal from the Amplifiersignal source is not desired to check the
plug-in unit and press the RESET button. Check for no displayHF SYNC operation, the last two steps
and READY light on. Connect the 1 kilohertz signal to theof this procedure may be deleted.
Amplifier plug-in unit Input and check for one sweep as the
signal is applied. Remove all connections from the
oscilloscope system.25. Change the Main Triggering MODE switch to HF SYNC.
Connect a high-frequency signal source (100 to 500
21. Set the Main Triggering MODE switch to AUTO andmegahertz) to the Amplifier plug-in unit Input and adjust for 4
SOURCE switch to AC. Turn the Delayed Triggering LEVELdivisions of vertical deflection. Adjust the TIME/DIV OR DLY
control fully clockwise to the RUNS AFTER DLY TTIIMMEE switch and DLY'D Time/Division switch for about 6
position. Pull out the DLY'D Time/Division switch and rotate tocycles of display. Rotate the Main Triggering LEVEL control
0.2 ms (Alternate mode). Connect a 0.4 volt, 1 kilohertzthroughout its range and note that signalthe sweep is alternately
from the oscilloscope Calibrator to the Amplifier plug-in unitstable, then free-running, several times during the rotation
Input and adjust for about 2 divisions of display amplitude.(stable display indicates that the trigger-generator frequency is
Rotate the Main Triggering LEVEL control for a stableadjusted to a subharmonic of the trigger signal frequency).
intensified display. The INTENSITY control may need Check that stable displayto bes can also be obtained with the Main
adjusted to view the intensified display. Rotate the Triggering CDELAYOUPLING switch set to AC, AC LF REJ, and DC
TIME MULT dial and note that the delay time before the(Main Triggering LEVEL control may be adjusted, as
intensified portion of display is continuously variable.necessary for a stable display).
22. Set the Delayed Triggering SLOPE, COUPLING, 26. Pull out the DLYand'D Time/Division switch, rotate it to the
SOURCE switches to (+), AC, and INT. Rotate the Delaynext edfastest sweep rate from the setting of the TIME/ DIV OR
Triggering LEVEL control counterclockwise out of the detentDLY TIME switch (Alternate mode). When the LEVEL control
and adjust for a stable display. Rotate the DELAY TIiMsE MiUnLT the detent (RUNS AFTER DELAY TIME) the display
dial and note that the intensified sweep does not start at theshould be stable. Rotate the LEVEL control counterclockwise
completion of the delay time but waits for the nexout of the detent and adjust for a stable displayt trigger. Check that
pulse.stable CRT displays can be obtained with the Delayed
Triggering COUPLING switch set to AC and DC. Disconnect
the high-frequency signal from the oscilloscope system.
2-7
REV. A, NOV. 1975 |
ACEC
OTHERS
