Tektronix 544 - Adjust C557 K and C557 F (X20 and X5 Magnified Sweep Compensations)- Horizontal Amplifier; Adjust C557 D (X2 Magnified Sweep Compensation)- Horizontal Amplifier; Check X20, X50, and X100 Magnified Sweep Compensation; Check.1 mSEC;CM through 5 SEC;CM Sweep Rates- Sweep Timing Switch

Calibration— Type 544/RM544
The remaining front-panel controls of the oscilloscope
and TU-7 are already set to the positions listed in
Table 5-9.
TABLE 5-8
TIME/CM
Time-Mark
Switch Setting
Generator Output
Check For
.1 p SEC*
10 me 1 cycle/cm
.2 /iSEC 5 me
1 cycle/cm
.5 juSEC*
1 /xsec 1 marker/2 cm
1 jtiSEC 1 /.isec
1 marker/cm
2/r.SEC
1 n sec
2 markers/cm
5 /iSEC 5 /isec
1 marker/cm
10 ,u.SEC* 10 /xsec
1 marker/cm
20 ,uS EC
10 ,u.sec 2 markers/cm
50 ixSEC 50 /rsec
1 marker/cm
.1 mSEC
100 ju.sec
1 marker/cm
.2 mSEC 100 ix sec 2 markers/cm
.5 mSEC
500 ix sec
1 marker/cm
1 mSEC* 1 msec
1 marker/cm
2 mSEC 1 msec
2 markers/cm
5 mSEC
5 msec 1 marker/cm
10 mSEC 10 msec
1 marker/cm
20 mSEC
10 msec
2 markers/cm
50 mSEC 50 msec
1 marker/cm
.1 SEC
100 msec
1 marker/cm
.2 SEC
100 msec
2 markers/cin
.5 SEC
500 msec
1 marker/cm
1 SEC
1 sec 1 marker/cm
2 SEC
1 sec
2 markers/cm
5 SEC 5 sec
1 marker/cm
* Adjusted previously for exact timing.
TABLE 5-9
Oscilloscope
INTENSITY ~3.5
FOCUS ~ 5
ASTIGMATISM = 5
SCALE ILLUM =;8
TRIGGERING-
SLOPE +
COUPLING AC
VARIABLE (TIME/CM) CALIBRATED
Single Sweep Switch NORMAL
HORIZONTAL POSITION Centered
VERNIER (HORIZONTAL Centered
POSITION)
EXTERNAL HORIZONTAL .1
VOLTS/CM
VARIABLE (EXTERNAL Fully cw
HORIZONTAL VOLTS/CM)
AMPLITUDE CALIBRATOR OFF
Type TU-7
Low Load
b. Connect a single binding post adapter (item 9) to the
TU-7 Ext Input connector.
c. Connect an interconnecting lead (item 12) from the
adapter at the TU-7 Ext Input connector to the
SWEEP OUT connector on the oscilloscope.
d. Connect an interconnecting lead (item 12) from the
EXTERNAL HORIZ INPUT connector to ground.
e Using the HORIZONTAL POSITION control, position
the vertical free-running sweep trace to the center of
the graticule. Check that the INTENSITY control is
set to make the trace visible.
f. Adjust the EXT HORIZ DC BAL R519 control (see Fig.
5-2) for no horizontal shift of the vertical trace while
rotating the VARIABLE (EXTERNAL HORIZONTAL
VOLTS/CM) control.
g. Disconnect the interconnecting lead that connects
from the EXTERNAL HORIZ INPUT connector to
ground.
38. Adjust EXT GAIN R510— (External) Horizontal
Amplifier
a. Connect a BNC T connector to the oscilloscope CAL
OUT connector.
b. Connect a coaxial cable from one end of the BNC T
connector to the TRIGGER INPUT connector.
c. Connect another coaxial cable from the other end of
the BNC T connector through a coaxial connector
adapter (item 10) to the EXTERNAL HORIZ INPUT
connector.
d. Set the AMPLITUDE CALIBRATOR switch to .5 VOLTS
and adjust the TRIGGERING LEVEL control to obtain
a stable display.
e. Check that the VARIABLE (EXTERNAL HORIZONTAL
VOLTS/CM) control is set fully clockwise.
f. Set the HORIZONTAL POSITION control so the dis
play is centered on the crt.
g. Set the TU-7 Variable control so several cycles of the
calibrator waveform are displayed (see Fig. 5-9a).
h. Adjust EXT GAIN R510 (see Fig. 5-2) so the display
is exactly 5 cm in amplitude (see Fig. 5-9a).
i. Recheck the adjustment of the EXT HORIZ DC BAL
R519 control by rotating the VARIABLE (EXTERNAL
HORIZONTAL VOLTS/CM) control back and forth
and checking that there is no shifting of the left side
of the calibrator waveform display. If the left side of
the waveform shifts as the VARIABLE control is
rotated, readjust EXT HORIZ DC BAL R519 for no
trace shift.
39. Adjust C524 Output Compensation— (External)
Horizontal Amplifier
a. Check that the VARIABLE (EXTERNAL HORIZONTAL
VOLTS/CM) control is rotated to its fully clockwise
position.
5-13
Test Function