TB 9-6625-149-50
15. Magnifier Gain
a. Performance Check
(1) Set time-mark generator (A10) to .1 mS markers.
(2) Turn TI HORIZONTAL DISPLAY switch to 5X MAG and align third marker
with second graticule line. If 19th marker does not display between 7.76 and 8.24
centimeters from third marker. perform b below.
b. Adjustments. Adjust MAG.
centimeters from third marker. (R)
16. Sweep Timing
a. Performance Check
(1)
Turn HORIZONTAL DISPLAY switch on TI to NORM.
(2)
Adjust STABILITY control as necessary.
(3)
Adjust time-mark generator (A10) to outputs listed in table 5. At each
setting, adjust HORIZONTAL POSITION control to align second (or
third) marker behind second vertical graticule line. At each setting, if
10th or 19th markers are not displayed within 1.5 minor divisions of 10th
vertical graticule line, perform b(1) below.
NOTE
When displaying one marker per centimeter, always align second marker behind
second vertical graticule line. When displaying two markers per centimeter,
align third marker behind second vertical graticule line.
Table 5. Sweep Timing
Test instrument
Time-mark
Markers
TIME/CM
setting.
Per/cm.
switch setting
11
.1 SEC
.1 S
2
.2 SEC
.1 S
12
.5 SEC
.5 S
13
1 SEC
1 S
2
2 SEC
1 S
1
5 SEC
5 S
14
10 SEC
10 S
2
20 SEC
10 S
1
50 SEC
50 S
.1 MILLISEC
.1 mS
1
.2 MILLISEC
.1 mS
2
.5 MILLISEC
.5 mS
1
1 MILLISEC
1 mS
1
2 MILLISEC
1 mS
2
14
