Check Bandwidth - Tektronix 213 DMM Instruction Manual

Performance Check-213 Service
c. CHECK-Crt display for a flat-top waveform.
d. ADJUST - 10X compensation capacitor C 108 (middle
unmarked hole in side panel) for the best flat-top wave-
form.
e. Set VOL TS-mA/DIV to 2 (black scale).
f. Set the Calibrator output to 10 V.
g. CHECK-Crt display for a flat-top waveform.
h. ADJUST -100X compensation capacitor C-104 (top
unmarked hole in side panel) for the best flat-top wave-
form.
i. Set VOL TS-mA/DIV to 20 (black scale).
j. Set the Calibrator output to 100 V.
k. CHECK- Crt display for a flat-top waveform.
I. ADJUST -1000X compensation capacitor C112 (bot-
tom unmarked hole in side panel) for the best flat-top
waveform.
m. Disconnect the Calibrator.
5-4
5. CHECK BANDWIDTH
a. Set: VOL TS-mA/DIV
SEC/DIV
5 m (black scale)
.5 m
b. Connect the probe to the Sine-Wave Generator with a
dual banana-plug to BNC adapter, 5X attenuator, 50
n
feedthrough terminator, and a probe adapter. Set the
Generator frequency to 10 kHz and its output amplitude
for a 6 division crt display.
c. Set the Generator frequency to 400 kHz.
d. CHECK-Vertical deflection is at least 4.2 divisions.
e. Remove the 5X attenuator and 50
D,
terminator from
the Generator and reconnect the probe to the Generator
with the probe adapter.
f. Set VOL TS-mA/D IV to .2 (black scale).
g. Set the Generator frequency to 10 kHz and its output
amplitude for a 6 division crt display.
h. Set the Generator frequency to 1 MHz.
i. CHECK-Vertical deflection is at least 4.2 divisions.
j. Disconnect the Generator.
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