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Tektronix 2205 Service Manual

Tektronix 2205
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Performance Check Procedure2205 Service
HORIZONTAL
Equipment Required (See Table 4-1):
Calibration Generator (Item 1)
50- a Coaxial Cable (Item 6)
Leveled Sine-Wave Generator (Item 2) 50- fl Termination (Item 8)
Time-Mark Generator (item 3)
INITIAL CONTROL SETTINGS
Vertical
POSITION (both) Midrange
MODE CH 1
VOLTS/DIV (both) 0.5 V
VOLTS/DIV Variable (both) CAL detent
AC-GND-DC (both) DC
Horizontal
POSITION Midrange
MAG XI
SEC/DIV 0.05 ms
SEC/DIV Variable CAL detent
Trigger
SLOPE Positive (_/")
LEVEL Midrange
MODE P-P AUTO
SOURCE CH 1
PROCEDURE STEPS
1. Check Timing Accuracy and Linearity
a. Connect 50-ns time markers from the time-
mark generator via a 50-a coaxial cable and a 50-11
termination to the CH 1 or X input connector.
b. Adjust the Trigger LEVEL control for a stable,
triggered display.
c. Use the Horizontal POSITION control to align
the second time marker with the second vertical
graticule line.
d. CHECKTiming accuracy is within 3% (0.24
division at the tenth vertical graticule line), and
linearity is within 5% (0.10 division over any 2 of the
center 8 divisions).
NOTE
For checking the timing accuracy of the SEC/
DIV switch settings from SO ms to 0.5 s,
watch the time marker tips only at the second
and tenth vertical graticule lines while
adjusting the Horizontal POSITION controls
to line up the time markers.
e. Repeat parts b through d for the remaining
SEC/DIV and time-mark generator setting combi
nations shown in Table 4-3 under X1 Normal”
column.
f. Set:
SEC/DIV 0.1 (is
Horizontal MAG X I0
g. Select 20-ns time markers from the time-
mark generator.
NOTE
The 20-ns time-markers tips are rounded off
and cannot be used as measurement refer
ence points. Use the rising edge of the time
markers as measurement reference points.
Vertically adjust the 50% point of the time
markers on the center horizontal graticule
line.
h. Use the Horizontal POSITION controls to align
the first time marker that is 50 ns beyond the start of
the sweep with the second vertical graticule line.
4-6

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Tektronix 2205 Specifications

General IconGeneral
BrandTektronix
Model2205
CategoryTest Equipment
LanguageEnglish

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