NAVAIR 17-20AW-105
TECHNICAL MANUAL
AW-105
INSTRUMENT CALIBRATION PROCEDURE
CURVE-TRACER
TEKTRONIX
576
THIS PUBLICATION SUPERSEDES NAVAIR 17-20AW-105
DATED 1 DECEMBER 2000
DISTRIBUTION STATEMENT C. DISTRIBUTION AUTHORIZED TO U.S. GOVERNMENT AGENC IES AND THEIR
CONTRACTORS TO PROTECT PUBLICATIONS REQUIRED FOR OFFICIAL USE OR FOR ADMINISTRATIVE OR
OPERATIONAL PURPOSES ONLY. OTHER REQUESTS FOR THIS DOCUMENT SHALL BE REFERRED TO
MEASUREMENT SCIENCE DIRECTORATE, CORONA DIVISION, NAVAL SURFACE WARFARE CENTER,
P.O. BOX 5000, CORONA, CA 92878-5000.
DESTRUCTION NOTICE - FOR UNCLASSIFIED, LIMITED DOCUMENTS, DESTROY BY ANY METHOD
THAT WILL PREVENT DISCLOSURE OF CONTENTS OR “RECONSTRUCTION OF THE DOCUMENT.”
AW-105
PUBLISHED BY DIRECTION OF COMMANDER NAVAL AIR SYSTEMS COMMAND
1 AUGUST 2002
NAVAIR 17-20AW-105
LIST OF EFFECTIVE PAGES
The purpose of this list is to identify the pages in this document affected by any technical content changes made since the
previous release of the document.
NOTE: On a revised page, with the exception of the Title, the A, and the i pages, the technical changes are indicated by a vertical
line in the outer margin of the page.
Page
No. **
Title 0
A 0
i 0
1 to 29 0
Revision*
Page
No. **
Revision*
Page
No. **
Revision*
A
*Zero in this column indicates an original page.
“R” in this column indicates a revised page.
**All pages not listed are blank pages.
NAVAIR 17-20AW-105
TABLE OF CONTENTS
Section Page
1 Introduction and Description ................................................................................................................... 1
2 Equipment Requirements......................................................................................................................... 5
3 Preliminary Operations............................................................................................................................ 6
4 Calibration Process .................................................................................................................................. 6
4.1 Horizontal and Vertical CRT Gain Tests ............................................................................................. 6
4.2 Horizontal and Vertical Displayed Noise Tests.................................................................................... 8
4.3 Display Offset and CAL Pushbutton Tests........................................................................................... 9
4.4 Horizontal Display Accuracy Tests ...................................................................................................... 11
4.5 Vertical Display Accuracy Tests.......................................................................................................... 12
4.6 Step Amplifier Gain Tests.................................................................................................................... 15
4.7 Step Generator and Offset Multiplier Accuracy Tests ......................................................................... 16
4.8 Step Generator Tests ............................................................................................................................ 19
4.9 Collector Supply Tests......................................................................................................................... 20
Navy Calibration Checklist...................................................................................................................... 23
ILLUSTRATIONS
Figure Page
1 TI CRT Graticule Lines........................................................................................................................... 8
2 Vertical Display Accuracy Test Configuration........................................................................................ 14
TABLES
Table Page
1 Calibration Description............................................................................................................................ 1
2 Equipment Requirements......................................................................................................................... 5
i
NAVAIR 17-20AW-105
SECTION 1
INTRODUCTION AND DESCRIPTION
1.1 This procedure describes the calibration of the Tektronix 576 Curve-Tracer. The instrument being calibrated is referred
to herein as the TI (Test Instrument).
1.2 All comments concerning this procedure should be directed to the Measurement Science Directorate, Corona Division,
Naval Surface Warfare Center, P.O. Box 5000, Corona, CA 92878-5000.
1.3 This procedure includes tests of essential performance parameters only. Any malfunctio n noticed during calibration,
whether specifically tested for or not, should be corrected.
Table 1. Calibration Description
TI
Characteristics
Collector supply sweep
modes
Voltages Ranges: 15, 75, 350, and 1500 V
Step generator current or
voltage steps inc lud i ng
offset
Normal AC: At line fre q uency
positive- or negative-going full
wave rectified AC
DC: Positive- or negative-going DC
Ripple: no load, 2% or less of
voltage; or 0.1% or less of full range
voltage
Tolerance: ±35% and -5% peak open
circuit voltages on all ranges
Series resistance: 0.3, 1.4, 6.5, 30,
140, and 650 Ω; 3, 14, 65, and
300 kΩ; 1.4 and 6.5 MΩ
Tolerance: ±5% or 0.1 Ω
Incremental tolerance: ±5% between
any two steps, without the 0.1X
STEP MULT button pressed; and
within ±10% with the 0.1X STEP
MULT button pressed
Absolute tolerance: ±2% of total
output, inc luding any a mount of
offset; or ±1% of AMPLITUDE
switch setting, whichever is greater
Performance
Specifications
Test
Method
Tested by inference.
Not tested.
Tested by observing the CRT
display and by measuring
the TI output with a DVM.
Tested by observing the CRT
display.
Step current o r voltage
amplitudes
OFFSET MULT control
range
One time (or 0.1 times with the STEP
MULT button pressed) the
AMPLITUDE switch setting
0 to 10 times AMPLITUDE switch
setting, either aiding or opposing the
step generato r polarit y
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NAVAIR 17-20AW-105
TI
Characteristics
Current mode Amplitude range: 200 mA to 50 nA,
in a 1-2-5 sequence
Maximum current: 20 times
AMPLITUDE switch setting, except
10 times switch setting when switch
is set to 200 mA, and 15 times
switch setting when the switch is set
to 100 Ma
Maximum voltage: 10 V min.
Maximum opposing offset current:
10 times the AMPLITUDE switch
setting, or between 10 mA and
20 mA, whichever is less
Maximum opposing voltage: between
1 and 3 V
Ripple plus noise: 0.5% or less of
AMPLITUDE switch setting or
1 nA, peak to peak
Voltage mode Amplitude range: 50 mV to 2 V, in a
1-2-5 sequence
Maximum voltage: 20 times
AMPLITUDE switch setting
Maximum current: at least 2A at
10 V or less decreasing linearly to
10 mA at 40 V
Maximum opposing offset voltage:
10 times the AMPLITUDE switch
setting
Maximum opposing current: 5 to
20 mA
Ripple plus noise: 0.5% or less of
AMPLITUDE switch setting; or
2 mV p-p
Performance
Specifications
Test
Method
Tested by observing the CRT
display.
Step rates 1 times .5 X, 2 times NORM, and
4 times 2 X line frequency
Pulsed steps
Number of steps Range from 1 to 10 as selected by the
2
Steps 80 µs wide within +20% to
-5%; or 300 µs wide withi n + 5 % to
15%
NUMBER OF STEPS switch
NAVAIR 17-20AW-105
TI
Characteristics
Display amplifiers
Display tolerance (% of
highest on-screen value)
Normal and DC collector
supply modes
Vertical collector
External vertical
(through interface)
Horizontal collector volts 2% 3% 4% 3%
Horizontal base volts 2% 3% 4% 3%
External horizontal
(through interface)
Leakage collector supply mode
Vertical emitter current
(VERTICAL switch set
between 10 nA and 2 mA)
Display magnified (DISPLAY
OFFSET selector switch set to
either VERT X 10 or HORIZ
X 10) and offset between
100 and
40 div
2% 3% 4% 3%
2% 3% 4% 3%
2% 3% 4% 3%
2%
±1 nA
Not applicable
Performance
Specifications
35 and
15 div
3%
±1 nA
10 and
0 div
4%
±1 nA
Display
Unmag
nified
3%
±1 nA
5%
±1 nA
Test
Method
Tested by observing the CRT
display and by measuring the
output on a DVM.
Tested by observing the CRT
display.
Vertical emitter current
(VERTICAL switch set to
5 nA, 2 nA, or 1 nA)
Horizontal collector or base
volts VERTICAL switch set
to: 1 µA or more
100 nA, 10 nA, or 1 nA
500 nA, 50 nA, or 5 nA
200 nA, 20 nA, or 2 nA
Step generator display
Vertical
Horizontal 3% 4% 5% 4%
Reflection factors
Vertical
Collector current
2%
±1 nA
Not applicable
Not applicable
Not applicable
3% 4% 5% 4%
1 µA/div to 2 A/div in a 1-2-5 sequence
3%
±1 nA
4%
±1 nA
3% plus 0.025 V per
vertical di v
3% plus 0.025 V per
vertical di v
3% plus 0.025 V per
vertical di v
3%
±1 nA
Tested by observing an output on an
external oscilloscope.
Tested with an external 10A source
on the 1 and 2A ranges.
Emitter current 1 nA/div to 2 mA/div in a 1-2-5 sequence
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NAVAIR 17-20AW-105
TI
Characteristics
Performance
Specifications
Test
Method
Step generator 1 step/div
Horizontal
Collector volts 50 mV/div to 200 V/div in a 1-2-5 sequence Tested by observing the CRT
display.
Base volts 50 mV/div to 2 V/div in a 1-2-5 sequence
Input impedance
At least 100 MΩ with the HORIZONTAL
switch set to 50, 100, and 200 mV BASE;
1 MΩ within 2% with the switch set to
0.5 V, 1V, and 2 V
Step generator 1 step/div
Maximum displayed noise 1% or less, or the following depending on
the setting of the MAX PEAK VOLTS
Tested by observing the CRT
display.
switch:
Range
Vertical 15 V 75 V 350 V 1500 V
Collector
1 µA 1 µA 2 µA 5 µA
Emitter 1 nA 1 nA 2 nA 5 nA
Horizontal
Collector 5 mV 5 mV 20 mV 200 mV
Base 5 mV 5 mV 5 mV 5 mV
Calibration check 10 div vertical and horizontal deflection
with the DISPLAY OFFSET switch set to
Tested by observing the CRT
display.
NORM (OFF)
Tolerance: ±1.5% with the DISPLAY
OFFSET switch to X10 MAGN IFIER
(horizontal or vertical) the calibration spot
is within 0.5% of the zero spot (graticule
center) with CAL button depressed
PER HORIZ DIV 5 mV to 100 V
PER STEPS 5 nA to 2A and 5 MV to 20 V
B or gm PER DIV
1µ to 500 k
Power requirements Tested by inference.
Low
Medium
High
Line frequency
90 to 110 V
104 to 126 V
112 to 136 V
48 to 66 Hz
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NAVAIR 17-20AW-105
SECTION 2
EQUIPMENT REQUIREMENTS
NOTES
Minimum use specifications are the principal parameters required for performance of the calibration, and are
included to assist in the selection of alternate equipment, which may be used at the discretion of the using
laboratory. Satisfactory performance of alternate items shall be verified prior to use. All applicable
equipment must bear evidence of current calibration.
The instruments utilized in this procedure were selected from those known to be available at Navy calibration
facilities and the listing by make or model number carries no implication of preference, recommendation, or
approval for use by other agencies. It is recognized that equivalent equipment produced by other
manufacturers may be capable of equally satisfactory performance in this procedure.
Table 2. Equipment Requirements
Item Minimum Use
2.1 Oscilloscope
Specifications
Sweep time: 50 µs/div
Triggering : + (plus)
Sensitivity: 0.05 to 5 V/div
Tektronix 7704A MOD 129G
with a 7B53A and a 7A26 or
7A12 plug in unit installed, or
Calibration
Equipment
547 or 545 series with a 1A1
plug in unit
2.2 DVM DV ranges: 10 V with an input impedance of
500 MΩ minimum; 100 and 1000 V ranges
Fluke 8350A, 8800A/AA,
887AB, or 883AB
Uncertainty: ±0.25%
2.3 Power supply 10A DC Hewlett-Packard
6259BOPT026 or 6433B
2.4 Resistor kit
1 and 10 Ω, 3 W; 10 MΩ, 1 W; 100 Ω, 0.5 W;
Local supply
1 and 10 kΩ, 0.25 W; 100 kΩ and 1 MΩ,
0.125 W; 25 and 250 kΩ, and 2.5 and 25 MΩ,
0.125 W
Uncertainty: ±0.25%
2.5 Protective box -- TI accessory
2.6 BNC male to dual binding
-- TI accessory
post adapter
2.7 Patch cords, and
-- Local supply
interconnecting cables
2.8 Current shunt 10 A DC
Uncertainty: ±0.5%
Leeds & Northrup 4360 or 4385
5
NAVAIR 17-20AW-105
SECTION 3
PRELIMINARY OPERATIONS
3.1 Ensure that all power switches are set to off, and set all auxiliary equipment controls as necessary to avoid da mage to the
equipment and so that dangerous voltages will not be present on output terminals when the power switches are turned on.
3.2 Connect the auxiliary equipment, and the TI, to the appropriate power source.
3.3 Ensure that the TI Line Voltage Selector Assembly (rear panel) Range Selector is positioned for M (medium) range, the
Voltage Selector is positioned for 115 V operation, and that the 60 Hz-50 Hz switch is set to 60 Hz.
3.4 Turn all power switches on, and allow a sufficient warm-up period for the equipment (the TI requires a 5 minute warm-up
time).
3.5 The Standard Test Fixture referred to in this procedure, is part of the TI from lower control panel.
SECTION 4
CALIBRATION PROCESS
NOTES
Unless otherwise specified, verify the results of each test and take corrective action whenever the test
requirement is not met, before proceeding.
If the TI is a 576 MOD 301W, all instructions pertaining to the Readout Assembly should be disregarded.
4.1 HORIZONTAL AND VERTICAL CRT GAIN TESTS
4.1.1 Set the TI controls as follows:
GRATICULE ILLUM control for graticule lines visible
READOUT ILLUM control for a visible readout
INTENSITY control for a visible spot
FOCUS control centered
VERTICAL switch to 5 mA COLLECTOR
DISPLAY OFFSET switch to NORM (OFF)
CENTERLINE VALUE switch to 5
HORIZONTAL switch to 2 V COLLECTOR
Vertical POSITION switch to Mid-range
Vertical FINE POSITION control centered
Horizontal POSITION switch to mid-range
6
Horizontal FINE POSITION control centered
DISPLAY INVERT pushbutton released
DISPLAY ZERO pushbutton released
CAL pushbutton released
MAX PEAK VOLTS switch to 15
PEAK POWER WATTS switch to 0.1
VARIABLE COLLECTOR SUPPLY control fully ccw
POLARITY switch to AC
MODE switch to NORM
LOOPING COMPENSATION control as is
NUMBER OF STEPS switch to 10
CURRENT LIMIT switch to 2 A
AMPLITUDE switch to 2 V
OFFSET ZERO pushbutton depressed
OFFSET MULT dial to 0.00 (fully ccw)
NAVAIR 17-20AW-105
STEPS pushbutton depressed
PULSED STEPS pushbuttons released
STEP FAMILY SINGLE pushbutton depressed
RATE NORM pushbutton depressed
POLARITY INVERT pushbutton released
STEP MULT .1X pushbutton released
LEFT-OFF-RIGHT switch to OFF
Terminal Selector switch to BASE TEM STEP GEN
CAUTION
TO AVOID BURNING THE TI CRT PHOSPHOR DURING THIS PROCEDURE, ALWAYS ADJUST
THE TI INTENSITY CONTROL FOR A DIM, BUT VISIBLE CRT TRACE OR SPOT.
4.1.2 Adjust the TI INTENSITY and FOCUS controls for a dimly lit, and well-defined spot of minimum size.
4.1.3 Set the TI POLARITY switch to +(NPN).
4.1.4 Adjust the TI Horizontal and Vertical POSITION switches and FINE POSITION controls to position the spot to the
zero horizontal and vertical CRT graticule lines (see Figure 1).
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NAVAIR 17-20AW-105
10th
HORIZONTAL
GRATICULE
LINE
9th
8th
7th
6th
Center
4th
3rd
2nd
1st
Zero
Zero 1st 2nd 3rd 4th
VERTICAL GRATICULE LINES
Figure 1. TI CRT Graticule Lines
Center
6th 7th 8th 9th 10th
4.1.5 Set the TI POLARITY switch to -(PNP).
4.1.6 Verify that the TI spot is within 0.1 division of the 10th vertical and 10th horizontal line.
4.1.7 Set the TI POLARITY switch to AC.
4.2 HORIZONTAL AND VERTICAL DISPLAYED NOISE TESTS
4.2.1 Set the TI controls as follows:
HORIZONTAL switch to .0 5 V COLLECTOR
Horizontal POSITION switch to mid-range
Horizontal FINE POSITION CONTROL centered
Vertical POSITION switch to mid-range
Vertical FINE POSITION control centered
DISPLAY OFFSET switch to HORIZ X10
POLARITY switch to AC
SERIES RESISTORS switch to 140 Ω
4.2.2 Install the protective box on the TI Standard Test Fixture and close its lid.
4.2.3 Ensure that the TI CENTERLINE VALUE switch is set to 5, and set the MAX PEAK VOLTS switch to the 15, 75, 350,
and 1500 ranges. Verify that the horizontal width of the CRT spot is not greater than 1 division for the 15 and 75 ranges,
4 divisions for the 350 range, and 40 divisions for the 1500 range. See the following note.
8
NAVAIR 17-20AW-105
NOTE
The TI CENTERLINE VALUE switch is set to 5. Measuring the displayed noise with t he MAX PEAK
VOLTS switch set to 1500 V, can be accomplished by setting the CENTERLINE VALUE switch to 4 or 3,
observe the end of the trace reference point, then set the centerline value switch to 6 or 7 and measure the
number of divisions from the reference point to the other end of the trace. Between each full step setting of
the CENTERLINE VALUE switch, the trace will be offset 10 divisions.
4.2.4 Set the TI HORIZONTAL switch to 0.05 BASE, set the LEFT-OFF-RIGHT switch to RIGHT, and connect the 1 MΩ
resistor between the base (B) and emitter (E) jacks on the Standard Test Fixture.
4.2.5 Set the TI MAX PEAK VOLTS switch to the 15, 75, 350, and 1500 ranges. Verify that the horizontal width of the CRT
spot is not greater than 1 division for each range.
4.2.6 Set the TI controls as follows:
VERTICAL CURRENT/DIV switch to 1µ A COLLECTOR
HORIZONTAL switch to 200 COLLECTOR
DISPLAY OFFSET switch to NORM (OFF)
Vertical POSITION switch 1 position cw
POLARITY switch to + (NPN)
VARIABLE COLLECTOR supply control fully cw
LEFT-OFF-RIGHT switch to OFF
4.2.7 Disconnect the 1 MΩ resistor from the TI.
NOTE
The LOOPING COMPENSATION control may have some effect on this check. It may be necessary to make
this check after the looping compensation adjustments have been made. (See manufacturer’s manual for
performing the adjustment of the LOOPING COMPENSATION.)
4.2.8 Set the TI MAX PEAK VOLTS switch to the 15, 75, 350, and 1500 V ranges. Verify that the vertical height of the
CRT spot is not greater than 1 division for the 15 and 75 ranges, 2 divisions for the 350 range, and 5 divisions for the 1500 range.
4.2.9 Set the TI MODE switch to LEAKAGE (EMITTER CURRENT).
4.2.10 Set the TI MAX PEAK VOLTS switch to the 15, 75, 350, and 1500 ranges. Verify that the vertical height of the CRT
spot is not greater than 1 division for the 15 and 75 ranges, 2 divisions for the 350 range, and 5 divisions for the 1500 range.
4.2.11 Disconnect the protective box from the TI Standard Test Fixture.
4.3 DISPLAY OFFSET AND CAL PUSHBUTTON TESTS
4.3.1 Set the TI controls as follows:
VERTICAL switch to 2A COLLECTOR
DISPLAY OFFSET switch to HORIZ X10
CENTERLINE VALUE switch to 0
HORIZONTAL switch to 1 V COLLECTOR
Vertical POSITION switch to mid-range
9
NAVAIR 17-20AW-105
OFFSET AID pushbutton depressed
MAX PEAK VOLTS switch to 15
MODE switch to DC
VARIABLE COLLECTOR SUPPLY control fully ccw
LEFT-OFF-RIGHT switch to RIGHT
AMPLITUDE switch to 2V
PULSED STEPS STEPS
STEP FAMILY SINGLE
4.3.2 Connect a patch cord between the TI base (B) and collector (C) jacks (right hand set of jacks).
4.3.3 Connect the DVM between the collector sense (C) and the emitter sense (E) jacks, and adjust it for measurement on the
10V DC range.
4.3.4 Depress the TI DISPLAY ZERO pushbutton, adjust the Horizontal POSITION to center the CRT spot on the center
vertical graticule line, and release the ZERO pushbutton.
NOTE
Upon release of ZERO pushbutton, ensure that the CRT spot is within 0.10 divisions of the center vertical
line. If not, repeat 4.3.4.
4.3.5 Set the TI CENTERLINE VALUE switch to each position shown in the following table. At each setting, adjust the
OFFSET MULT control for the co rresponding DVM voltage ind ications shown, and verify that the CRT spot is within 0.2 5
divisions of the center vertical graticule line.
TI
CENTERLINE VALUE
Switch Setting
.5 0.500
1 1.000
1.5 1.500
2 2.000
2.5 2.500
3 3.000
3.5 3.500
4 4.000
4.5 4.500
5 5.000
5.5 5.500
6 6.000
6.5 6.500
7 7.000
7.5 7.500
8 8.000
8.5 8.500
9 9.000
9.5 9.500
10 10.000
DVM
Voltage Indication
(DC Volts)
10
NAVAIR 17-20AW-105
4.3.6 Depress the TI DISPLAY ZERO pushbutton, adjust the Horizontal FINE POSITION control to center the CRT spot on
the center vertical graticule line, release the ZERO pushbutton, and verify that the CRT spot is within 0.5 division of the center
vertical gra ticule line.
4.4 HORIZONTAL DISPLAY ACCURACY TESTS
4.4.1 Set the TI switch to .05 COLLECTOR, and AMPLITUDE switch to .05 V.
4.4.2 Depress the TI ZERO pushbutton, and adjust the Horizontal FINE POSITION control to center the CRT spot on the
center vertical graticule line. Release the ZERO pushbutton.
4.4.3 Set the TI HORIZONTAL and AMPLITUDE switches as shown in the following table. At each setting, adjust the
OFFSET MULT control for the co rresponding DVM voltage ind ication, and verify that the CRT sp ot is within 2 divisions of the
center vertical graticule line.
TI HORIZONTAL
Switch Setting
.05 COLLECTOR .05 0.500
.1 ” .1 1.000
.2 ” .2 2.000
.5 ” .5 5.000
1 ” 1 10.00
Adjust the DVM controls for measurement on the 100 V range.
2 COLLECTOR 2 20.00
Adjust the DVM controls for measurement on the 100 V range.
.05 BASE .05 0.500
.1 ” .1 1.000
.2 ” .2 2.000
.5 ” .5 5.000
1 ” 1 10.00
Adjust the DVM controls for measurement on the 100 V range.
2 BASE 2 20.00
4.4.4 Set the TI LEFT-OFF-RIGHT switch to OFF, and disconnect the patch cord and DVM from the TI.
4.4.5 Set the TI MODE switch to DC (DC ANTI LOOP), and connect the DVM to the collector (C) and emitter (E) jacks.
4.4.6 Set the TI controls as follows:
TI AMPLITUDE
Switch Setting
DVM Voltage Indication
(DC Volts)
CENTERLINE VALUE switch to 10
HORIZONTAL switch to 5 V COLLECTOR
OFFSET ZERO pushbutton depressed
VARIABLE COLLECTOR SUPPLY control fully ccw
MAX PEAK VOLTS switch to 1500
SERIES RESISTORS s witch to 6.5 M
LEFT-OFF-RIGHT switch to RIGHT
4.4.7 Adjust the DVM controls for measurement on the 100 V range.
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NAVAIR 17-20AW-105
4.4.8 Set the TI HORIZONTAL switch as shown in the following table. At each setting, use a non-metallic object to depress
the Interlock switch (located on the Standard Test Fixture left side), adjust the VARIABLE COLLECTOR SUPPLY control for
the corresponding DVM voltage indications shown, and verify that the CRT spot is within 2 divisions of the center vertical
graticule line, except for the 200 COLLECTOR setting the CRT spot must be within 1 division of the center vertical graticule
line.
WARNING
DURING THE FOLLOWING TEST, LETHAL VOLTAGES WILL BE PRESENT ON THE TI
STANDARD TEST FIXTURE CONNECTIONS. AVOID BODY CONTACT.
TI HORIZONTAL
Switch Setting
5 COLLECTOR
10 ”
Adjust the DVM controls for measurement on the 1000 V range.
20 COLLECTOR
50 ”
100* ”
Set the TI CENTERLINE VALUE switch to 5.
200* COLLECTOR 1000*
*It may be necessary to set the TI PEAK POWER WATTS switch to a higher
value to get a 1000 V collector supply output.
4.4.9 Release the TI Interlock switch, set the LEFT-OFF-RIGHT switch to OFF, and disconnect the DVM from the TI.
4.5 VERTICAL DISPLAY ACCURACY TESTS
4.5.1 Set the TI controls as follows:
VARIABLE COLLECTOR SUPPLY control fully ccw
MAX PEAK VOLTS switch to 15
DVM Voltage Indication
(DC Volts)
50.00
100.0
200.0
500.0
1000*
SERIES RESISTORS s witch to .3
MODE switch to NORM
VERTICAL switch to 1 µA
DISPLAY OFFSET switch to VERT X10
CENTERLINE VALUE switch to 10
AMPLITUDE switch to 1 µA
OFFSET AID pushbutton depressed
POLARITY INVERT pushbutton depressed
LEFT-OFF-RIGHT switch to RIGHT
4.5.2 Connect the 100 kΩ resistor between the TI collector (C) and base (B) connectors (use short banana plug-to-alligator
clip leads, if available).
4.5.3 Connect the DVM between the TI collector (C) and base (B) terminals (right side of the Standard Test Fixture), and
adjust the controls for measurement on the 10 V range.
12
NAVAIR 17-20AW-105
4.5.4 Depress the TI DISPLAY ZERO pushbutton, and adjust the Vertical FINE POSITION control and Vertical POSITION
switch to center the CRT spot on the center horizontal graticule line. Release the ZERO pushbutton.
4.5.5 Set the TI VERTICAL and AMPLITUDE switches as shown in the following table. At each setting, connect the
resistor shown to the collector (C) and base (B) connectors, adjust the OFFSET MULT control for the corresponding DVM
voltage indications shown, and verify that the CRT spot is within 2 divisions of the ce nter horizontal graticule line. When
disconnecting and connecting resistors, momentarily set the LEFT-OFF-RIGHT switch to OFF.
NOTE
If the CRT spot position cannot be determined due to noise, disconnect the DVM to observe the spot.
DVM Voltage
TI VERTICAL
Switch Setting
1 µA 1 µA 100 kΩ
2 ” 2 ” ” 2
5 ” 5 ” ” 5
10 ” 10 ”
20 ” 20 ” ” 2
50 ” 50 ” ” 5
.1 mA 1 mA
.2 ” .2 ” ” 2
.5 ” .5 ” ” 5
1 ” 1 ”
2 ” 2 ” ” 2
5 ” 5 ” ” 5
10 ” 10 ”
20 ” 20 ” ” 2
50 ” 50 ” ” 5
1.1 A 100 mA
.2 ” 200 ” ” 2
.5 ” */** ” ” ” 2
TI AMPLITUDE
Switch Setting
Resistor
10 kΩ
1 kΩ
100 Ω
10 Ω
1 Ω
Indication
(Volts)
1
1
1
1
1
*Set the TI CENTERLINE VALUE switch to 4.
**The tolerance limits, for the .5A VERTICAL switch setting, are within 0.4 division of the
center line.
4.5.6 Set the TI LEFT-OFF-RIGHT switch to OFF, and disconnect the resistor and DVM from the TI.
4.5.7 Connect the equipment as shown in Figure 2.
13
NAVAIR 17-20AW-105
POWER
SUPPLY
+
+
-
DVM
-
+
*RIGHT SIDE OF THE
STANDARD TEST FIXTURE
TI
4.5.8 Set the TI controls as follows:
VERTICAL switch to 1A
CENTERLINE VALUE switch to 10
LEFT-OFF-RIGHT switch to RIGHT
4.5.9 Adjust the power supply controls for a 10.00A DC output current as indicated on the DVM using the appropriate
multiplier for the current shunt. Verify that the CRT spot is within 2 divisions of the horizontal center graticule line.
4.5.10 Set the TI VERTICAL switch to 2A, and the CENTERLINE VALUE switch to 5.
+
*C
-
*E
Figure 2. Vertical Display Accuracy Test Configuration
G
+
POT.
G
CURRENT
SHUNT
LINE
4.5.11 Verify that the TI CRT spot is within 1 division of the horizontal center graticule line.
4.5.12 Adjust the power supply controls for minimum output, set the TI LEFT-OFF-RIGHT switch to OFF, and disconnect
all equipment from the TI.
4.5.13 Connect the 25 MΩ resistor between the TI base (B) jack and emitter (E) jack, and connect the DVM between the base
(B) jack and GROUND jack.
4.5.14 Set the TI controls as follows:
VERTICAL switch to 1 nA EMITTER
DISPLAY OFFSET switch to NORM (OFF)
CENTERLINE VALUE switch to 10
AMPLITUDE switch to .5 V
OFFSET MULT control to 0.00
POLARITY INVERT pushbutton released
MODE switch to LEAKAGE (EMITTER CURRENT)
LEFT-OFF-RIGHT switch to RIGHT
14
NAVAIR 17-20AW-105
4.5.15 Adjust the TI OFFSET MULT control clockwise until the CRT spot is on the 10th horizontal graticule line (if the CRT
spot has noise, adjust the center of the spot to the 10th horizontal graticule line).
4.5.16 Verify that the DVM indication is between 0.425 and 0.575 V.
4.5.17 Set the TI VERTICAL switch to 2 and 5 nA. At each setting, adjust the OFFSET MULT control to center the CRT
spot on the 10th horizontal graticule line, and verify that the DVM indication is between 0.900 and 1.100 V for the 2 nA setting,
and between 2.325 and 2.675 V for the 5 nA setting.
4.5.18 Set the TI DISPLAY OFFSET switch to VERTICAL X10, disconnect the 25 MΩ resistor, and connect the 2.5 MΩ
resistor in its place.
4.5.19 Set the TI VERTICAL switch as shown in the following table. At each setting, connect the appropriate resistor as
shown, and then depress the DISPLAY ZERO pushbutton an d adjust the Vertical POSITION switch and FINE POSITION
control to center the CRT spot on the center horizontal graticule line. Release the ZERO pushbutton, adjust the TI OFFSET
MULT control to center the CRT spot on the center horizontal graticule line, and verify that the DVM indication is within the
tolerance limits listed.
TI VERTICAL
10 nA
20 ” ” 0.975 to 1.025
50 ” ” 2.445 to 2.555
.1 µA 250 kΩ
.2 ” ” 0.980 to 1.020
.5 ” ” 2.450 to 2.550
1 ”
2 ” ” 0.980 to 1.020
5 ” ” 2.450 to 2.550
4.5.20 Disconnect the DVM and the resistor from the TI.
4.6 STEP AMPLIFIER GAIN TESTS
4.6.1 Set the TI controls as follows:
MODE switch to NORM
VERTICAL switch to 2A
CENTERLINE VALUE switch to 10
Switch Setting
2.5 MΩ
25 kΩ
Resistor
Tolerance Limits
(Volts)
0.485 to 0.515
0.490 to 0.510
0.490 to 0.510
HORIZONTAL switch to 1V BASE
NUMBER OF STEPS switch to 10
AMPLITUDE switch to 1 V
STEP FAMILY REP pushbutton depressed
POLARITY INVERT pushbutton released
DISPLAY OFFSET switch to HORIZ X10
4.6.2 Depress the TI DISPLAY ZERO pushbutton and adjust the Horizontal FINE POSITION control to center the CRT spot
on the center vertical graticule line. Release the ZERO pushbutton.
4.6.3 Verify that the CRT spot is within 2 divisions of the center vertical graticule line.
15
NAVAIR 17-20AW-105
4.6.4 Depress the TI AID OFFSET pushbutton, and verify that the CRT spot is within 2 divisions of the center vertical
graticule line.
4.6.5 Set the TI CENTERLINE VALUE switch to 0.
4.6.6 Depress the TI OPP OSE OFFSET pushbutton, and verify that the CRT spot is within 2 d ivisions of the center vertical
graticule line.
4.7 STEP GENERATOR AND OFFSE T MULTIPLIER ACCURACY TESTS
4.7.1 Set the TI controls as follows:
VERTICAL switch to 2A
DISPLAY OFFSET switch to HORIZ X10
CENTERLINE VALUE switch to 0
HORIZONTAL switch to 1V B ASE
AMPLITUDE switch to 1V
OFFSET MULT control to 10.00
STEP FAMILY REP pushbutton depressed
MAX PEAK POWER WATTS switch to 220
POLARITY switch to + (NPN)
OFFSET ZERO
4.7.2 Depress the TI ZERO pushbutton, and adjust the Vertical FINE POSITION control to center the CRT spot on the center
horizontal graticule line.
4.7.3 Release the TI ZERO pushbutton and verify that the CRT spot is within 0.1 division of the center horizontal graticule
line.
4.7.4 Depress the TI ZERO pushbutton, and adjust the Horizontal FINE POSITION control to center the CRT spot on the
center vertical graticule line. Release the ZERO pushbutton.
4.7.5 Set the TI CENTERLINE VALUE switch as shown in the following table. At each setting, verify that the CRT spot is
centered on the center vertical graticule line within the tolerance limits listed.
TI
CENTERLINE VALUE
Switch Setting
2 0.5 div
4 ”
6 ”
8 ”
10 2 div
Tolerance Limits
(divisions)
4.7.6 Depress the TI AID OFFSET pushbutton, and verify that the CRT spot is within 2 divisions of the center vertical
graticule line.
4.7.7 Adjust the TI OFFSET MULT control one complete revolution at a time, set the CE NTERLINE VALUE switch
clockwise two positions at a time, and verify that the zero step voltage level continuously decreases.
16
NAVAIR 17-20AW-105
4.7.8 Adjust the TI OFFSET MULT control to 10.00, depress the OFFSET OPPOSE pushbutton, and verify that the C RT
spot is within 2 divisions of the center vertical graticule line.
4.7.9 Set the TI controls as follows:
HORIZONTAL switch to .1V B ASE
OFFSET ZERO pushbutton depressed
STEP MULT .1X pushbutton depressed
4.7.10 Depress the TI DISPLAY ZERO pushbutton, and adjust the Vertical and Horizontal FINE POSITION controls to
center the CRT spot on the center horizontal and vertical lines.
4.7.11 Release the TI ZERO pushbutton, and verify that the CRT spot is within 0.1 division of the center horizontal graticule
line.
4.7.12 Set the TI CENTERLINE VALUE switch as shown in the following table. At each setting, verify that the CRT spot is
centered on the center vertical graticule line within the tolerance limits listed.
TI
CENTERLINE VALUE
Switch Setting
2 1 div
4 ”
6 ”
8 ”
10 2 div
Tolerance Limits
(divisions)
4.7.13 Set the TI controls as follows:
HORIZONTAL switch to 200 COLLECTOR
AMPLITUDE switch to 2V
OFFSET AID pushbutton depressed
STEP MULT .1X pushbutton released
STEP FAMILY SINGLE pushbutton depressed
4.7.14 Connect the DVM between the TI base (B) and emitter (E) jacks on the right side of the Standard Test Fixture.
4.7.15 Adjust the DVM cont rols for mea surement on the 10 V range .
4.7.16 Set the TI LEFT-OFF-RIGHT switch to RIGHT.
4.7.17 Set the TI AMPLITUDE switch as shown in the following table. At each setting, verify that the DVM indication is
within the tolerance limits listed.
17
NAVAIR 17-20AW-105
TI AMPLITUDE
Switch Setting
.05 V 0.490 to 0.510
.1 V 0.980 to 1.020
.2 V 1.960 to 2.040
.5 V 4.90 to 5.10
1 V 9.80 to 10.20
Adjust the DVM controls for measurement on the 100 V range.
2 V 19.60 to 20.40
4.7.18 Adjust the DVM cont rols for mea surement on the 10 V range .
4.7.19 Set the TI LEFT-OFF-RIGHT switch to OFF.
4.7.20 Connect the 1 MΩ resistor between the TI base (B) and emitter terminals on the Standard Test Fixture.
4.7.21 Set the TI AMPLITUDE switch as shown in the following table. At each setting, connect the corresponding resistor
(when connecting the resistor, set the LEFT-OFF-RIGHT switch to OFF, then set the switch to RIGHT before continuing), and
verify that the DVM indication is within the tolerance limits listed.
Tolerance Limits
(Volts)
NOTE
If resistors are connected using leads, ensure that the interconnecting leads are as short as possible.
TI AMPLITUDE
Switch Setting Resistor
.05 µA 1 MΩ
.1 ” ” 0.980 to 1.020
.2 ” ” 1.960 to 2.040
.5 ”
1 ” ” 0.980 to 1.020
2 ” ” 1.960 to 2.040
5 ”
10 ” ” 0.980 to 1.020
20 ” ” 1.960 to 2.040
50 ”
.1 ” ” 0.980 to 1.020
.2 ” ” 1.960 to 2.040
.5 ”
1 ” ” 0.980 to 1.020
2 ” ” 1.960 to 2.040
5 ”
10 ” ” 0.980 to 1.020
20 ” ” 1.960 to 2.040
50 ”
100 ” ” 0.980 to 1.020
200 ” ” 1.960 to 2.040
100 kΩ
10 kΩ
1 kΩ
100 Ω
10 Ω
1 Ω
0.490 to 0.510
0.490 to 0.510
0.490 to 0.510
0.490 to 0.510
0.490 to 0.510
0.490 to 0.510
0.490 to 0.510
Tolerance Limits
(Volts)
4.7.22 Set the TI LEFT-OFF-RIGHT switch to OFF, and disconnect the resistor and DVM from the TI.
18
NAVAIR 17-20AW-105
4.8 STEP GENERATOR TESTS
4.8.1 Set the TI controls as follows:
HORIZONTAL switch to 1 BASE
AMPLITUDE switch to 1 V
OFFSET ZERO pushbutton depressed
RATE .5X pushbutton depressed
POLARITY switch to + (NPN)
NUMBER OF STEPS switch to 10
4.8.2 Connect the BNC male to dual binding post adapter to the oscilloscop e vertical input connector. Connect a patch cord
from the TI STEP GEN OUTPUT (red binding post) connector and the ground connector on the Standard Test Fixture to the dual
binding post.
4.8.3 Depress the TI STEP FAMILY REP pushbutton, adjust the oscilloscope for a sweep, and verify that there is a 10 step
oscilloscope display.
4.8.4 Depress the TI 2X RATE pushbutton, and set the NUMBER OF STEPS switch to 1.
4.8.5 Adjust the oscilloscope controls for + triggering, 50 µs/div sweep time (calibrated), and 0.2V/div vertical deflection.
4.8.6 Depress the TI 300 µs PULSED STEPS pushbutton and verify that the oscilloscope display is a pulsed step with a 5.7 to
7.2 division pulse width. For serial numbers 172570 and higher, the pulse width should be 5.1 to 6.3 divisions. Release the
pushbutton.
4.8.7 Depress the TI 80 µs PULSED STEPS pushbutton, and verify that the display is a pulsed step with a 1.52 to
1.92 division pulse width.
4.8.8 Disconnect the oscilloscope from the TI.
4.8.9 Set the TI controls as follows:
DISPLAY OFFSET switch to HORIZ X10
CENTERLINE VALUE switch to 10
HORIZONTAL switch to .05 BASE
AMPLITUDE switch to .05 µA
OFFSET AID pushbutton depressed
OFFSET MULT control to 0.00
STEPS pushbutton depressed
STEPS FAMILY SINGLE pushbutton depressed
POLARITY switch to + (NPN)
4.8.10 Connect the 10 MΩ resistor between the TI BASE and EMITTER jacks (right side of the TI Standard Test Fixture).
4.8.11 Set the TI LEFT-OFF-RIGHT switch to RIGHT.
4.8.12 Depress the TI DISPLAY ZERO pushbutton, and adjust the Horizontal and Vertical POSITION controls to center the
spot on the CRT Vertical and Horizontal graticule lines. Release the ZERO pushbutton.
4.8.13 Adjust the TI OFFSET MULT control until a spot appears on the CRT display, and verify that the spot has a
horizontal width of less than 4.0 divisions (less than 1 nA p-p).
19
NAVAIR 17-20AW-105
4.8.14 Set the TI LEFT-OFF-RIGH T switch to OFF, the OFFSET MULT contr ol to 10.00, and the AMPLITUDE switch to
.05 V.
4.8.15 Verify that the TI CRT spot width is less than 0.4 divisions (less than 2 mV p-p).
4.8.16 Disconnect the 10 MΩ resistor from the TI.
4.9 COLLECTOR SUPPLY TESTS
4.9.1 Set the TI controls as follows:
VERTICAL switch to 5 mA COLLECTOR
DISPLAY OFFSET switch to NORM (OFF)
CENTERLINE VALUE switch to 5
HORIZONTAL switch to 2 V COLLECTOR
Vertical POSITION switch to mid-range
Vertical FINE POSITION control centered
Horizontal POSITION switch mid-range
Horizontal FINE POSITION control centered
DISPLAY INVERT pushbutton released
ZERO pushbutton released
CAL pushbutton released
MAX PEAK VOLTS switch to 15
PEAK POWER WATTS switch to 220
VARIABLE COLLECTOR SUPPLY control fully ccw
POLARITY switch to AC
MODE switch to NORM
LOOPING COMPENSATION control as is
NUMBER OF STEPS switch to 10
CURRENT LIMIT switch to 2A
AMPLITUDE switch to 2 V
OFFSET ZERO pushbutton depressed
OFFSET MULT control to 0.00
STEPS pushbutton depressed
PULSED STEPS pushbuttons released
STEP FAMILY SINGLE pushbutton depressed
RATE NORM pushbutton depressed
POLARITY INVERT pushbutton released
STEP MULT .1X pushbutton released
LEFT-OFF-RIGHT switch to OFF
Terminal Selector switch to BASE TERM STEP GEN
4.9.2 Install the protective box (item 2.5) on the TI Standard Test Fixture and close its lid.
20
NAVAIR 17-20AW-105
4.9.3 Depress the TI DISPLAY ZERO pushbutton and adjust the Horizontal and Vertical POSITION switches and FINE
POSITION controls to center the spot on the CRT vertical and horizontal graticule lines. Release the ZERO pushbutton.
4.9.4 Adjust the TI VARIABLE COLLECTOR SUPPLY control clockwise to obtain a 10 division CRT display trace, and
verify that the trace extends out from both sides of the center vertical graticule line.
4.9.5 Set the TI POLARITY switch to -(PNP), adjust the VARIABLE COLLECTOR SUPPLY control fully cw, and verify
that the trace originates at the 10th vertical graticule line and extends to the left.
4.9.6 Set the TI POLARITY switch to +(NPN), and verify that the trace originates at the 0 vertical graticule line and extends
to the right.
CAUTION
DURING THE FOLLOWING TEST, ALWAYS SET THE HORIZONTAL SWITCH FIRST TO AVOID
DAMAGE TO THE HORIZONTAL AMPLIFIER.
4.9.7 Set the TI HORIZONTAL and MAX PEAK VOLTS switches as shown in the following table. At each setting, verify
that the trace length from the 0 vertical graticule line (see Figure 1, if required) is within the corresponding tolerance limits listed.
Then set the TI DISPLAY OFFSET switch to HORIZ X10, the MODE switch to DC, adjust the CENT ERLINE VALUE switch
to position the spot on the CRT, and verify that the spot width does not exceed the tolerance limits listed. Set t he DISP LAY
OFFSET switch to NORM (OFF), the MODE switch to NORM, and the CENTERLINE VALUE switch to 5 before setting the
HORIZONTAL and MAX PEAK VOLTS switches to the next settings.
Tolerance Limits
TI HORIZONTAL
Switch Setting
2 V 15 V 7.13 to 10.1 1.5 max
10 V 75 V 7.13 to 10.1 1.5 ”
50 V 350 V 6.65 to 9.4 1.4 ”
200 V 1500 V 7.15 to 10.1 1.5 ”
4.9.8 Set the TI DISPLAY OFFSET switch to NORM (OFF), the MODE switch to NORM, and the VARIABLE
COLLECTOR SUPPLY fully ccw.
4.9.9 Lift the protective box lid and connect a patch cord between the collector and emitter jacks (right side of the Standard
Test Fixture). Close the lid.
4.9.10 Set the TI LEFT-OFF-RIGHT switch to RIGHT.
4.9.11 Depress the TI ZERO pushbutton and adjust the Horizontal and Vertical POSITION switches and FINE POSITION
controls as required to place the spot on the CRT zero graticule lines. Release the ZERO pushbutton.
DURING THE FOLLOWING TEST, ALWAYS SET THE VERTICAL SWIT CH FIRST TO AVOID
DAMAGE TO THE VERTICAL AMPLIFIER. ALSO, DO NOT EXCEED THE CURRENT (IN
DIVISIONS) SHOWN, AND RETURN THE VARIABLE COLLECTOR SUPPLY CONTROL TO IT S
FULLY CCW POSITION AFTER REACHING THE CURRENT SHOWN.
TI MAX PEAK VOLTS
Switch Setting
CAUTION
Trace Length
(Divisions)
Spot Width
(Divisions)
21
NAVAIR 17-20AW-105
4.9.12 Set the TI VERTICAL and MAX PEAK VOLTS switches as shown in the following table. At each setting, adjust the
VARIABLE COLLECTOR SUPPLY control clockwise until the peak current shown is reached (do not exceed the current), then
return the VARIABLE COLLECTOR SUPPLY control to its fully ccw position. Verify that each current minimum can be
reached.
TI VERTICAL
Switch Setting
*
TI MAX PEAK VOLTS
Switch Setting
Tolerance Limits
(Divisions)
20 mA 1500 10 div (20 mA) min
.1 A 350 10 div (1A) min
.5 A 75 8 div (4A) min
2 A 15 10 div (20A) min
*See CAUTION note above.
4.9.13 Set the TI LEFT-OFF-RIGHT switch to OFF, lift the protective box lid and remove the patch cord, and close the lid.
4.9.14 Unless other measurements are to be performed, set all power switches to off, and disconnect the setup.
22
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.1 Horizontal and Vertical CRT Gain Tests
4.1.6 vertical 10th line -- ck ( ) within 0.1 div
” horizontal 10th line -- ck ( ) ”
4.2 Horizontal and Vertical Displayed Noise Tests
4.2.3 Horizontal Width
” 15 range -- ck ( ) 1 div max
” 75 ” -- ck ( ) ”
” 350 ” -- ck ( ) 4 div max
” 1500 ” -- ck ( ) 40 div max
4.2.5 Horizontal Width
” 15 range -- ck ( ) 1 div max
” 75 ” -- ck ( ) ”
” 350 ” -- ck ( ) ”
” 1500 ” -- ck ( ) ”
4.2.8 Vertical Height
” 15 range -- ck ( ) 1 div max
” 75 ” -- ck ( ) ”
” 350 ” -- ck ( ) 2 div max
1500 ” -- ck ( ) 5 div max
4.2.10 Vertical Height
” 15 range -- ck ( ) 1 div max
” 75 ” -- ck ( ) ”
” 350 ” -- ck ( ) 2 div max
1500 ” -- ck ( ) 5 div max
4.3 Display Offset and Cal Pushbutton Tests
4.3.4 Zero adj -- ck ( ) NA adjust to center spot
4.3.5 CENTERLINE VALUE
” .5 -- ck ( ) within 0.25 div of center
Page 1 of 7
23
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.3.5 CENTERLINE VALUE
” 1 -- ck ( ) within 0.25 div of center
” 1.5 -- ck ( ) ”
” 2 -- ck ( ) ”
” 2.5 -- ck ( ) ”
” 3 -- ck ( ) ”
” 3.5 -- ck ( ) ”
” 4 -- ck ( ) ”
” 4.5 -- ck ( ) ”
” 5 -- ck ( ) ”
” 5.5 -- ck ( ) ”
” 6 -- ck ( ) ”
” 6.5 -- ck ( ) ”
” 7 -- ck ( ) ”
” 8 -- ck ( ) ”
” 8.5 -- ck ( ) ”
” 9 -- ck ( ) ”
” 9.5 -- ck ( ) ”
” 10 -- ck ( ) ”
4.3.6 Zero adj -- ck ( ) adjust to center spot
” spot centered -- ck ( ) within 0.5 div of center
4.4 Horizontal Display Accuracy Tests
4.4.2 Zero adj -- ck ( ) NA adjust to center spot
4.4.3 .05 COLLECTOR -- ck ( ) within 2 div of center
” .1 ” -- ck ( ) ”
” .2 ” -- ck ( ) ”
” .5 ” -- ck ( ) ”
” 1 ” -- ck ( ) ”
” 2 ” -- ck ( ) ”
” .05 BASE -- ck ( ) ”
” .1 ” -- ck ( ) ”
Page 2 of 7
24
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.4.3 .2 BASE -- ck ( ) within 2 div of center
” .5 -- ck ( ) ”
” 1 ” -- ck ( ) ”
” 2 ” -- ck ( ) ”
4.4.8 5 COLLECTOR -- ck ( ) within 2 div of center
” 10 ” -- ck ( ) ”
” 20 ” -- ck ( ) ”
” 50 ” -- ck ( ) ”
” 100 ” -- ck ( ) ”
” 200 ” -- ck ( ) within 1 div of center
4.5 Vertical Display Accuracy Tests
4.5.4 Zero adj -- ck ( ) adjust to center spot
4.5.5
1 µA
-- ck ( ) within 2 div of center
” 2 ” -- ck ( ) ”
” 5 ” -- ck ( ) ”
” 10 ” -- ck ( ) ”
” 20 ” -- ck ( ) ”
” 50 ” -- ck ( ) ”
” .1 mA -- ck ( ) ”
” .2 ” -- ck ( ) ”
” .5 ” -- ck ( ) ”
” 1 ” -- ck ( ) ”
” 2 ” -- ck ( ) ”
” 5 ” -- ck ( ) ”
” 10 ” -- ck ( ) ”
” 20 ” -- ck ( ) ”
” 50 ” -- ck ( ) ”
” .1 A -- ck ( ) ”
” .2 ” -- ck ( ) ”
” .5 ” -- ck ( ) within 0.4 div of center
Page 3 of 7
25
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.5.9 VERTICAL 1 A -- ck ( ) within 2 div of center
4.5.11 VERTICAL 2 A -- ck ( ) within 1 div of center
4.5.16 VERTICAL 1 nA 0.500 V 0.425 to 0.575 V
4.5.17 ” 2 nA 1.000 V 0.900 to 1.100 V
” ” 5 nA 2.500 V 2.325 to 2.675 V
4.5.19 VERTICAL 10 nA 0.500 V 0.485 to 0.515 V
” ” 20 ” 1.000 V 0.975 to 1.025 V
” ” 50 ” 2.500 V 2.445 to 2.555 V
”
” .1 µA
0.500 V 0.490 to 0.510 V
” ” .2 ” 1.000 V 0.980 to 1.020 V
” ” .5 ” 2.500 V 2.450 to 2.550 V
” ” 1 ” 0.500 V 0.490 to 0.510 V
” ” 2 ” 1.000 V 0.980 to 1.020 V
” ” 5 ” 2.500 V 2.450 to 2.550 V
4.6 Step Amplifier Gain Tests
4.6.2 Zero adj -- ck ( ) adjust to center spot
4.6.3 VERTICAL 2 A -- ck ( ) within 2 div of center
4.6.4 AID OFFSET -- ck ( ) ”
4.6.6 OPPOSE OFFSET -- ck ( ) ”
4.7 Step Generator and Offset Multiplier Accuracy Tests
4.7.2 Zero adj -- ck ( ) adjust to center spot
4.7.3 OFFSET MULT 10.00 -- ck ( ) within 0.1 div of center
4.7.4 Zero adj -- ck ( ) adjust to center spot
4.7.5 CENTER LINE VALUE
” 2 -- ck ( ) within 0.5 div of center
” 4 -- ck ( ) ”
” 6 -- ck ( ) ”
” 8 -- ck ( ) ”
” 10 -- ck ( ) within 2 div of center
Page 4 of 7
26
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.7.6 AID OFFSET -- ck ( ) within 2 div of center
4.7.7 Zero voltage level -- ck ( ) continuously decreases
4.7.8 OFFSET OPPOSE -- ck ( ) within 2 div of center
4.7.10 Zero adj -- ck ( ) adjust to center spot
4.7.11 OFFSET MULT 10.00 -- ck ( ) within 0.1 div of center
4.7.12 CENTERLINE VALUE 2 -- ck ( ) within 1 div of center
” ” 4 -- ck ( ) ”
” ” 6 -- ck ( ) ”
” ” 8 -- ck ( ) ”
” ” 10 -- ck ( ) within 2 div of center
4.7.17 AMPLITUDE .05 V 0.500 V 0.490 to 0.510 V
” ” .1 V 1.000 V 0.980 to 1.020 V
” ” .2 V 2.000 V 1.960 to 2.040 V
” ” .5 V 5.00 V 4.90 to 5.10 V
” ” 1 V 10.00 V 9.80 to 10.20 V
” ” 2 V 20.00 V 19.60 to 20.40 V
4.7.21
”
”
”
”
”
”
”
”
”
AMPLITUDE .05 µA
” .1 µA
” .2 µA
” .5 µA
” 1 µA
” 2 µA
” 5 µA
” 10 µA
” 20 µA
” 50 µA
0.500 V 0.490 to 0.510V
1.000 V 0.980 to 1.020 V
2.000 V 1.960 to 2.040 V
0.500 V 0.490 to 0.510 V
1.000 V 0.980 to 1.020 V
2.000 V 1.960 to 2.040 V
0.500 V 0.490 to 0.510 V
1.000 V 0.980 to 1.020 V
2.000 V 1.960 to 2.040 V
0.500 V 0.490 to 0.510 V
” ” 1 mA 1.000 V 0.980 to 1.020 V
” ” .2 mA 2.000 V 1.960 to 2.040 V
” ” .5 mA 0.500 V 0.490 to 0.510 V
” ” 1 mA 1.000 V 0.980 to 1.020 V
” ” 2 mA 2.000 V 1.960 to 2.040 V
Page 5 of 7
27
NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.7.21 AMPLITUDE 5 mA 0.500 V 0.490 to 0.510 V
” ” 10 mA 1.000 V 0.980 to 1.020 V
” ” 20 mA 2.000 V 1.960 to 2.040 V
” ” 50 mA 0.500 V 0.490 to 0.510 V
” ” 100 mA 1.000 V 0.980 to 1.020 V
” ” 200 mA 2.000 V 1.960 to 2.040 V
4.8 Step Generator Tests
4.8.3 10 steps -- ck ( ) 10 step display
4.8.6
”
4.8.7
300 µs PULSED STEPS
300 µs (ser. 172570 up)
80 µs PULSED STEPS
6 div 5.7 to 7.2 div
6 div 5.1 to 6.3 div
1.6 div 1.52 to 1.92 div
4.8.12 Zero adj -- ck ( ) adjust to center spot
4.8.13 1 nA p-p -- ck ( ) <4.0 div
4.8.15 2 mV p-p -- ck ( ) <0.4 div
4.9 Collector Supply Tests
4.9.3 Zero Adj -- ck ( ) adj to center spot
4.9.4 Trace test -- ck ( ) extends from center
4.9.5 -(PNP) -- ck ( ) extends to left
4.9.6 +(NPN) -- ck ( ) extends to right
4.9.7 2 V Trace Length 7.5 div 7.13 to 10.1 div
” 2 Spot Width -- ck ( ) 1.5 div max
” 10 V Trace Length 7.5 div 7.13 to 10.1 div
” 10 Spot Width -- ck ( ) 1.5 div max
” 50 V Trace Length 7.0 div 6.65 to 9.4 div
” 50 Spot Width -- ck ( ) 1.4 div max
” 200 V Trace Length 7.5 div 7.15 to 10.1 div
” 200 Spot Width -- ck ( ) 1.5 div max
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NAVAIR 17-20AW-105
CALIBRATION CHECKLIST
TEST INST(S) Tektronix 576 Curve-Tracer
PROC. NO. NA 17-20AW-105 MFR MODEL SER. NO.
PROCEDURE MEASURED VALUES OUT
STEP FUNCTION TESTED NOMINAL FIRST RUN SECOND RUN OF CALIBRATION TOLERANCES
NO TOL
(1) (2) (3) (4) (5) (6) (7)
4.9.11 Zero adj -- ck ( ) adjust to center spot
4.9.12 20 mA -- ck ( ) 10 div min
” .1 A -- ck ( ) 10 div min
” .5 A -- ck ( ) 8 div min
” 2 A -- ck ( ) 10 div min
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