Time/Div - Tektronix 7B15 Instruction Manual

Calibration Part II--71315
Adjustment and Performance Check
B18 . CHECK MAGNIFIED SWEEP TIMING
5- 4 0
SETUP CONDITIONS
NOTE
If the preceding step was not performed, first
refer to the Horizontal System Preliminary
Control Settings, then proceed with the
following instructions.
7B15 Controls:
MAG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X10 (out)
TIME/DIV . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table 5-8
B18. SETUP CONDITIONS
BNC
Cable
NOTE
Vertical Amplifier (HI Freq) . . . . . . . . . . . . . . . . 0.5 V/div at 1 ns)
Time-Mark Generator . . . . . . . . . . . . . . . . . . . . . . . . . . . See Table 5-8
The tolerances in Table 5-8 are for an
ambient temperature range of +15°C to
+35°C . If outside
this range, see the
Specification section
for applicable
tolerances .
a . CHECK--Using the TIME/DIV settings and time-mark
generator settings in Table 5-8, check magnified sweep
accuracy for 1 time mark/division, over the center 8
divisions, within the tolerance given in Table 5-8 . Set the
POSI`IION controls, TRIGGERING LEVEL and vertical
volts/division control as necessary for a stable display
aligned with the vertical graticule lines,
NOTE
The 7B15 may be operated as a delayed
sweep unit (B horizontal compartment) with a
companion delaying sweep unit (A horizontal
compartment). To check 7B15 delayed sweep
operation, refer to a delaying sweep checkout
procedure in the operating instructions or
calibration sections of the instruction manual
for the delaying sweep unit.
Tolerance
Time/Div I Time Markers I
(+15 1 to +35° C)
2 ns 1 1 ns`
Within 0.2 div
__
_,.a
,
-. ..._ .___ ._Y ._...__ W ithin 0.24 div
- With in 0. 24_div
- Wi t hin 0.24 div
Within 0.24 div
Within 0.24 div
TABLE 5-8
Magnified Sweep Timing
_Within 0.24 div
.._..r
._Within 0.24 div
Within 0.24 div
Within 0.24 div
t Check for 1 cycle in 5 divisions at 200 ps/div over center 8
divisions.
This completes the Adjustment and Performance Check
procedure.
REV B FEB 1980
5 ns I
1 ns Within 0.32 div
-
10 ns 1 ns
Within 0.24 div
20 ns 2ns
Within 0.24 div
__
50 ns
__
5 ns
Within 0.24 div
.1 fts -10ns
Within 0.24 di v _
.2
M 20 - ns
._ . .
With in 0.2 4 div
.5
Ns
50 ns ' -- W ithin Within 0.24 div
1'U
_
,Us__
Withi
_
n 0
_
.24 ,div
2 ps - ~.2its~~-
thin 0 .24
5
u
_ _
Within 0.24 div
lops
_
-~~
..4. .
1/ts Within
_ _
p
__0.24_d_i
20 its 1
2
N
Within 0.24 di