Performance CheckICalibration-314 Service
c. Set CH 1 VOLTS/DIV for slightly greater than 8
c. Set TRIGGERING LEVEL, CH 1 VOLTS/DIV, CH
1
divisions of vertical display. Adjust TRIGGERING LEVEL
POSITION and INTENSITY for a visible, triggered, ver-
for stable display. Set INTENSITY control as necessary to
tically centered display about
2
divisions in amplitude.
view time marks.
d. Turn Horizontal POSITION to move start of trace
about
2
divisions to the right of the left vertical graticule
d. Adjust TIME/DIV Variable for one marker per divi-
line,
and
set
LEVEL
fully
clockwise,
sion.
e. ADJUST43348 (located on right side just behind
e. Check for
G0.15 division of curvature of the vertical
RESET button)'. Preset R348fully clockwise, then adjust it
time markers over the
8
vertical divisions of display.
counterclockwise just to the point where the start of the
Switch lnput Coupling to GND. Position display baseline
trace reaches its maximum length (advance INTENSITY
to top and bottom graticule line and check for maximum of
enough to ensure that all of the start of the trace is fully
0.1 division of curvature of the baseline over 10 horizontal
visible).
divisions. Adjust INTENSITY as necessary.
f. Set
TIME/DIV to 10 ms and TRIGGERING LEVEL
fully counterclockwise.
f. ADJUST-R575, Geom (see Fig.
7-5
for location),
for minimum curvature of markers and baseline (switch
lnput Coupling as necessary).
g. CHECK-That trace is visible at sweep speeds of
10 ms and slower.
h. INTERACTION-If trace disappears, re-adjust
R348 slightly so trace is visible at sweep speeds of 10 ms
5.
Adjust Holdoff, (SN
300001-SN
300199
and slower with TRIGGERING LEVEL fully
only)
counterclockwise while maintainina maximum lenath of
a. Set CH 1 lnput Coupling to DC, TIME/DIV to 1 ps,
start of trace with sweep speed at 1;s and
TRIGGE~ING
and TIME/DIV variable to CAL.
LEVEL fully clockwise.
b. Set Time Mark Generator for 1 ps time marks.
i. Disconnect Time Mark Generator from 314.
'~348
was removed and replaced with a wire at approximately
SN300200.
REV.
A,
AUG.
1975
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