Tektronix 3B5, Instruction Manual

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Calibration — Type 3B5
(A)
1 /is
Cal
C168
Fig. 6-14. (A) Typical CRT display showing correct one-microsecond
timing, (B) Location of 1
μ
s Cal adjustment (Time-Base Board).
16. Adjust 0.1 -Microsecond Timing
a. Set the time-mark generator for 0.1 -microsecond
markers.
b. Set the MANUAL TIME/DIV switch to 0.1 μ s.
c. Set the LEVEL control for a triggered display.
d. CHECK — CRT display for one marker each division
between the first and ninth vertical graticule lines (second and
tenth marker; see Fig. 6-1 6A).
e. ADJUST — 0.1 μ s Cal adjustment, C502 (see Fig. 6-1 6B),
for one marker each division.
f. INTERACTION— Check steps 17 — 20.
(A)
10
μ
s Cal
C315
Fig. 6-15. (A) Typical CRT display showing correct 10-microsecond timing, (B) Location of 10
μ
s Cal adjustment (Time-Base Board).
6-15