Tektronix 314 - Page 62

Performance Check/Calibration-314 Service
Control Settings
INTENSITY
POWER
FOCUS
CH 1 and CH 2
VOLTS/DIV
VARIABLE
POSITION
lnput Coupling
CH 1
CH 2
DISPLAY
CH
2 INVERT
TRIGGERING
LEVEL
SLOPE
Coupling
Source
Mode
TIME/DIV
Variable
Horizontal POSITION
SWEEP MAG
STORAGE
STORE
ENHANCE
AUTO ERASE
ENHANCE LEVEL
VIEWING
TIME
EXT ATTEN (side panel)
midrange
on
midrange
10 m
CA L
midrange
DC
GND
CH 1
out
midrange
+
AC
I NT
AUTO
1 ms
CA L
midrange
XI
out
out
out
CCW
CCW
1 X
VERTICAL SYSTEM
Equipment Required
1. Standard Amplitude Calibrator
6. 50-ohm Feedthrough Termination
2. Square-Wave Generator
7. lox, 50-ohm Attenuator
3. Constant Amplitude Signal Generator
8. 2X, 50-ohm Attenuator
4. Dual Input Cable
9. 47 pF Input RC Normalizer
5. 50-ohm BNC Cable
10. GR to BNC Female Adapter
d. Set LEVEL control for stable display.
e. CHECK-square-wave display amplitude is 5
divisions, +3% (k0.75 minor division).
f. Turn CH
1 VOLTS/DIV VARIABLE fully coun-
terclockwise.
g. CHECK-display amplitude decreases to
2
divisions or less.
h. Switch DISPLAY to CH 2 and position display as
necessary.
i. CHECK-square-wave display amplitude is 5
divisions,
13% (lt0.75 minor division).
j. Turn CH 2 VOLTS/DIV VARIABLE fully coun-
terclockwise.
k. CHECK-display amplitude decreases to 2
divisions or less.
1. Check Gain
a. Connect Standard Amplitude Calibrator through
50-ohm cable and through dual input cable to CH
1 and
CH 2 VERT INPUT connectors.
b. Set Standard Amplitude Calibrator for 50 mV
square-wave.
c. Set FOCUS and INTENSITY for normal viewing.
I. Return CH 1 and CH
2 VOLTWDIV VARIABLE
controls to CAL.
2. Check CH 1 and CH 2 VoltsIDivision Accuracy
a. Set 314 VOLTS/DIV and Standard Amplitude
Calibrator output as shown in Table 5-2, columns 1 and 2.
b. Check
VOLTS/DIV display and accuracies as
shown in columns 3 and
4.