Tektronix CURVE-TRACER 576 Instruction Manual page 132

Performance Check/Calibration-Type 576
TABLE 5-2 (cont.)
Step Title Adjust
Req'd
No.
Previous
Steps
19
Check Vertical
Display Accuracy
20 Adjust Zero Crossing R8, R24
1' 3
and Step Delay
21 Adjust Zero Step
R224, R97,
1' 3
Level
R127
22
Adjust Step
R113, R86,
1' 3, 8, 9,
Amplifier Gain R85 10, 11
23
Adjust Current
R243
1' 3
Balance
24 Check Step Gener-
15, 17, 18,
ator and Offset 19
Multiplier Accuracy
25 Check Maximum
15,17,18,
Current Output 19
26 Check Short Circuit 15, 17, 18,
Current and Reverse 19
Current Limits
27 Check Maximum
Voltage Output and
Reverse Voltage
Limit
28
Check Miscellaneous
Step Generator
Buttons
29 Check Step
Generator Ripple
30 Check Collector
15, 17, 18,
Supply Polarity, 19
Peak Voltage, Ripple
and Interlock
31 Check Collector
15, 17, 18,
Supply Peak 19
Currents
32 Adjust Looping
C301, C339
1' 3
Compensation
C341, LOOP-
lNG
COM PEN-
SATION
33 Check and Adjust
LOOPING
LOOPING COMPEN- COM PEN-
SATION Control SATION
34 Check Series
Resistors
5-4
Page
5-18
5-20
5-20
5-21
5-21
5-22
5-23
5-24
5-24
5-25
5-26
5-26
5-27
5-27
5-28
5-28
Initial Control Settings
FOCUS
VERTICAL
DISPLAY OFFSET Selector
CENTERLINE VALUE
HORIZONTAL
Vertical POSITION
Vertical FINE POSITION
Horizontal POSITION
Horizontal FINE POSITION
DISPLAY INVERT
ZERO
CAL
MAX PEAK VOLTS
PEAK POWER WATTS
VARIABLE COLLECTOR
SUPPLY
POLARITY
MODE
LOOPING COMPENSATION
NUMBER OF STEPS
CURRENT LIMIT
AMPLITUDE
OFFSET
OFFSET MULT
Centered
5 mA COLLECTOR
NORM (OFF)
5
2 V COLLECTOR
Control Centered
Control Centered
Control Centered
Control Centered
Not Pressed
Not Pressed
Not Pressed
15
0.1
Fully Counterclockwise
AC
NORM
As is
10
2A
2V
ZERO
0.00 (fully counter-
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STEPS
clockwise
Pressed
Released
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PULSED STEPS
STEP FAMILY
RATE
POLARITY INVERT
STEP MU L T .1 X
LEFT-OFF-RIGHT
Terminal Selector
SINGLE
NORM
Released
Released
OFF
BASE TERM STEP
GEN
Test Oscilloscope
Time/Cm
Triggering
Volts/Cm
Input Coupling
Position
5
ms
Trig,+, AC, Line
.01
AC (Both Channels)
Display Centered
POWER SUPPLY
1. Adjust -75 Volt Supply
0
a. Set the Type 576 controls as shown in the list of
Initial Control Settings preceding this step.
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b. Position the instrument so that the L.V. REGU-
LATOR circuit board (operator's right side) is visible .
REV C
JUL 1980
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