HP 3720A Service Manual
I.
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SPECTRUM
DISPLAY
3720A
i’
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*-
-
-
-
-
HEWLETT
'TPACKARD
u
SERVICE
MODEL
I-
J
.
SPECTRUM DISPLAY
MANUAL
3720A
SERIAL PREFIX
This manual applies to
1209U. Instruments with
have
a
Manual Change Sheet, to which reference should be
WWW.HPARCHIVE.COM
For
Copyright HEW LETT-PAC
SOUTH QUEENSFERRY, WEST LOTHIAN, SCOTLAND
Free
all
instruments having serial prefix
a
serial prefix above 1209U
made.
Distribution
Only
KAR
D
LIMITED 1972
may
,.
03720-95001
WWW.HPARCHIVE.COM
Printed: APRIL 1972
I
Foreword
FOREWORD
For convenience and
ease
of use, information on Model 3720A Spectrum Display
has been presented in two publications:
hp
.OPERATING MANUAL
Part Number 03720-95000
(Microfiche 03720-95025)
hp
.SERVICE MANUAL
Part Number 03720-95001
(Microfiche 03720-95026)
HOW TO ORDER
To order the above publications contact the nearest Hewlett-Packard Sales and
Service Office (addresses
at
the rear of this manual). Give the
hp
Part Number of
the publication and the complete model number, name and serial number of the instrument.
SERVICE MANUAL CONTENT
contains General Servicing Instructions and a Description of Controls
Section
I
and Indicators.
I
Section
gives information on Parts Identification, Maintenance and Repair
Procedu res.
II
Section
Section
Section
contains a list of Replaceable Parts for the 3720A.
V
gives the 3721A/3720A System Troubleshooting Procedure.
V contains the Functional Diagram, Assembly Location Diagrams and
Assembly Packages including Schematic and Component Location.
MICROFICHE
rhese publications are also available in 6in x 4in microfiche form. Each sheet contains
up to 60 pages, maximum, of
text
and illustrations. Order
as
above, quoting the
appropriate hpmicrofiche part number.
ii
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LIST
SECTION
OF
CONTENTS
I
INTRODUCTION
List of Contents
Paragraph 1 . 1
1-3
Table
Figure
1-1
1-1
1-2
1-3
Paragraph 2-1
2-3
2-1 5
2-19
2-33
OPERATING INSTRUCTIONS
GENERAL SERVICING INSTRUCTIONS
Accessories furnished with 3720A
Model 3720A Spectrum Display
Front panel controls and indicators
Rear panel controls and connectors
SECTION
INTRODUCTION
IDENTIFICATION
II
GENERAL MAINTENANCE
.........
.........
2-4 Assembly Identification
2-6 Assembly Connection Identification
2-8 Integrated Circuit Identification
INSTRUMENT DlSMANTLl
2-16 Removing Top and Bottom Covers
2-1 7 Removing Side Covers
2-1 8 Front Panel Access
............
.......
..............
..........
..
.........
...
NG
............
...........
.............
....
...
..
....
........
........
MAINTENANCE
2-20 Locations
2-23 Replacement of Display Sensitivity Lamps
2-27 Cleaning the Air Filter
2-29 Cathode Ray Tube RemovaI/RepIacement
2-30 Line Transformer Removal/Replacement
of
dc Power Supply Fuses
..............
.......
...
..............
................
2-31 Chassis Mounted Transistors Plate Removal/Replacement
2-32 High Voltage Tripler Assembly Removal/Replacement
REPAIR PROCEDURES
2-34 Etched Circuits
............................
.......................
2-36 Integrated Circuit Removal/Replacement
...
...
....
....
..
Page
....
..
Page
......
...
...
...
...
...
...
...
...
...
...
...
...
...
...
1-1
1-1
1-1
1-0
1-2
1-4
2-1
2-1
2-1
2-1
2- 1
2-2
2-2
2-2
2-3.
2-3
2-3
2-4
2-4
2-5
2-5
2-5
2-5
2-5
2-6
Table
2- 1
2-2
F
igu re 2- 1
2-2
Paragraph 3- 1
3-3
3-7
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3720A Assem bl ies
Digital integrated circuit abbreviations
..............
....
A18/A19 Housing assembly retaining screws
CRT neck connections
SECTION
I
NT
R 0 DUCT
I 0 N
ORDERING INFORMATION
REFERENCE DESIGNATORS
................
111
REPLACEABLE PARTS
..........
..
..
...
2-1
2-2
..
....
.....
...
...
Page
..
2-3
2-4
3-1
3-1
3-1
...
Ill
Model 3720A
3- 8
3-9
iable
Figure
Paragraph 4-1
33- 2
3-
4-3
4-8
4-12
4-14
4-16
4-
1
4-2
4-23
4-25
4-27
LIST OF ABBREVIATIONS
COLOUR ABBREVIATIONS
Replaceable Parts
1
Code List of Manufacturers
Location of cabinet components
1
SECTION
INTRODUCTION
USING TROUBLESHOOTING SECTION
TEST EQUIPMENT
4-10 Logic Probe
SYSTEM TROUBLESHOOTING CONTROLS SET-UP
FLOW A
FLOW B
FLOW
9
FLOW D . Other Transferred Signals Faults
1
FLOW D(a)
FLOW D(b) . Gain Correction Factors Transfer Faults
FLOW D(c)
.
Control Faults
.
Display Sensitivity Faults
C . Data Transfer Faults
.
.
..........
IV
SYSTEM TROUBLESHOOTING
....................
..........................
.............................
Timescale Transfer Faults
Signal Recovery Transfer Faults
..
..
.....
..
......................
............
........
,.
..
........
............
......
........
........
..
...
..
..
..
Page
....
..
..
..
..
..
..
..
..
..
..
3-4
3-50
3-49
4-1
4-1
4-2
4-2
4-3
4-5
4-6
4-7
4-8
4-8
4-9
4-10
P
c
k
I
rable 4- 1
4-
2
4-3
4-4
4-5
4-6
4-7
4-8
Figure
Paragraph 5-1
4- 1
4-2
4-3
4-'4
4-5
5-3
5-5
5-9
Flow charts
3721A/3720A System repair procedure
Test equipment required for System Troubleshooting
Range transfer check
Range data logic check
Ti mescale transfer check
Gain correction factors check
Signal recovery transfer check
750KHz
Transfer Data duration
Data Ready
Transfer Data repetition rate
Multiplexed range outputs
SECTION V SCHEMATICS. COMPONENT LOCATIONS. DIAGRAMS
INTRODUCTION
DRAWING SYMBOLS
ASSEMBLY PACKAGES
5-7 Locating Assembly Packages
THEORY OF OPERATION
5-10 Functional Diagram
..................................
............
..........................
....
..............
..........
..
..................
......
..............
..
..
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.......
..
...
...
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..
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.....
..
4-1
..
4-1
..
4-2
..
4-6
..
4-6
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4-9
..
4-10
..
4-10
..
4-4
..
4-4
..
4-4
..
4-4
4-6
Page 5-1
5-1
5-1
..
5-1
..
5-1
..
5-1
9
c
Y
I
Figure
5-1 Guide to schematics
5-2 Logic package outlines
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..
..
..
5-2
5-3
1'
i
List of Contents
5-3
5-4
5- 5
5-6
5-7
5-8
5-9
Functional diagram
Guide to logic symbols
Location of components (front and rear panels)
Location of assemblies and chassis mounted components (top view)
Location of assemblies and chassis mounted components (underside view)
of
Wiring
rotary switches
Wiring of rear panel connectors
..
.. ..
A1 Not Assigned
A2 Mantissa Range Assembly Package
Figure A2-1 Component location, A2
A2-2 Schematic A2 (part
A2-3
Schematic A2 (part 21, Mantissa Range assembly
1
),
A3 Decade Range Assembly Package
Figure A3-1 Component location, A3
A3-2 Schematic A3, Decade Range assembly
..
.. ..
..
.. .. .. ..
..
..
..
.. ..
.. ..
.. ..
..
..
..
..
..
..
..
..
..
.. .. ..
.. ..
..
.. ..
Mantissa Range assembly
.
. . . . .
. . . . . .
..
..
.. ..
.. .. .
..
..
..
..
..
..
.. ..
..
.. ..
.
.
. .
.
..
..
.
.
..
.. .. ..
..
..
..
..
..
.. ..
.
. . . . . . .
.
. .
. . . . .
..
..
..
.. ..
.
.
.. ..
..
..
..
..
..
..
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Page
.
..
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Page
. .. ..
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5-4
5-4
5-5
5-6
5-7
5-61
5-63
5-10
5-11
5-13
5-14
5-15
A4 Store 1 Assembly Package
Table A4-1 Component identification grid, A4
Figure
A4-1 Component location, A4
..
.. .. .. ..
A4-2 Schematic A4 (part 11, Store 1 assembly
A4-3 Schematic A4 (part 21, Store 1 assembly
A5 Store 2 Assembly Package
Figure A5-1 Component location, A5
45-2 Schematic A5, Store 2 assembly
..
.. ..
..
._
A6 Buffer Assembly Package
Figure
.
A6-1 Component location, A6
A6-2 Schematic A6, Buffer assembly
..
..
.. ..
._
A7 Switch Card Assembly Package
Table A7-1 Component identification grid, A7
F igu re A7-1 Component location, A7
..
..
..
..
A7-2 Schematic A7, Switch Card assembly
._
.
Page
517
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.,
..
..
_. ..
.
.
.
.
.
..
..
5-16
_.
5-17
..
5-19
Page
5-20
..
..
5-21
Page
5-22
__
__
5-23
Page
5-25
..
524
..
5-25
A8 Hybrid Multiplier Assembly Package
Table A8-1 Component identification grid, A8
Figure
A8-1 Component location, A8
..
.. .. ..
A8-2 Schematic A8, Hybrid Multiplier assembly
WWW.HPARCHIVE.COM
..
._
.
..
..
._
..
..
..
Page
5-27
_.
5-26
..
527
,
Model 3720A
A9 Window Multiplier Assembly Package
Table A9-1 Component identification grid, A9
.
, . ._
..
..
Page 5-29
F
igu re
A9-1 Component location, A9
A9-2 Schematic A9, Window Multiplier assembly
...............
..
A10 Integrator Assembly Package
Table A10-1 Component identification grid, A10
Figure
A10-1 Component location, A10
..........
A10-2 Schematic A10, Integrator assembly
.. ..
..
A1 1 Polar Converter Assembly Package
Table A1 1-1 Component identification grid, A1
F igu
re
A1 1-1 Component location, A1 1
A1 1-2 Schematic A1 1, Polar Converter assembly
A1 2 Low Voltage Power
Supply
Assembly Package
Table A12-1 Component identification grid, A12
1
............
....
..........
Figure A12-1 Component location, Chassis Mounted Transistors
A12-2 Schematic, Line Module and Line Transformer
A12-3 Component location, A12
.......................
..........
A1 2-4 Schematic A1 2, Low Voltage Power Supply assembly
........
.
........
........
........
........
...
....
....
Page
....
....
Page 5-33
....
.
..
Page
....
....
_.
._
.
5-28
529
5-31
5-30
5-31
532
5-33
5-37
5-34
5-35
5-36
5-37
1
A1 3 Control Logic Assembly Package
Table A13-1 Component identification grid, A13
Figure
A13-1 Component location, A13
A13-2 Schematic A13 (part
11,
....................
Control Logic assembly
A13-3 Schematic A13 (part 2), Control Logic assembly
A14 Triangle Wave Generator Assembly Package
Table A14-1 Component identification grid, A14
Figure
A14-1 Component location, A14
A14-2 Schematic A14 (part
11,
A14-3 Schematic A14 (part 2), Triangle
............................
Triangle
Wave
Wave
A15 Sine Shaper Assembly Package
Table A15-1 Component identification grid, A15
Figure
A151 Component location, A15
A1 5-2 Schematic A1 5 (part
11,
...............
Sine Shaper assembly
A15-3 Schematic A15 (part 21, Sine Shaper assembly
.. ..
..
..
..
Generator assembly
Generator assembly
..
..
..
..
..
..
Page
..
_.
....
....
Page
....
....
....
Page
....
....
,.
5-39
5-38
5-39
541
5-43
542
5-43
5-45
5-47
5-46
5-47
5-49
r
.
vi
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List of Contents
A16 Deflection Amplifiers Assembly Package
.
Page
Table A16-1 Component identification grid, A16
F igu re
1
A16-1 Component location, A16
A16-2 Schematic A16 (part
l),
A16-3 Schematic A16 (part 21, Deflection Amplifiers assembly
..
.. .. ..
..
..
..
..
_.
.. .. ..
Deflection Amplifiers assembly
..
5-51
..
5-50
..
5-51
-
..
5-53
I
i
A1 7 High Voltage Power Supply Assembly Package
Table A17-1 Component identification grid, A17
Figure
A17-1 Component location, A17
..
.. ..
A17-2 Schematic A17, High Voltage Power Supply assembly
A1
8
Range Indicator Assembly
Table A18-1 LED Truth Table
Figure
A18-1 Component location, A18
_.
..
_. .. .. .. .. _.
A18-2 Schematic A18, Range Indicator assembly
A19 Range Units Assembly Package
Figure A19-1 Component location, A19
.. ..
.. .. ..
A19-2 Schematic A19, Range Units assembly
.. ..
..
.
..
..
Page
5-55
. ..
..
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Page
,
..
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Page
..
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554
5-55
5-57
5-56
5-57
556
5-57
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..
.
,.
A20 Storage Assembly Package
._ ..
Page
.. ..
,
..
5-59
5-58
5-59
Table A20-1 Component identification grid, A20
Figure A20-1 Component location, A20
..
..
.;
A20-2 Schematic A20,Storage assembly
..
. . .
. . . .
..
.
.
..
>
vii
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--
Model
3720A
t
L
1-0
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Figure
1-1
Model
3720A
Spectrum Display
Section
I
SECTION
I
INTRODUCTION
1-1
OPERATING INSTRUCTIONS
1-2 Detailed operating instructions are contained
in the 3720A Operating Manual but, for convenience, descriptions of the controls, indicators and
connectors on the front and rear panels of the
3720A are included in this section.
1-3
GENERAL SERVICING INSTRUCTIONS
1-4 When servicing the 3721A/3720A System,
1
Table
1-1
Accessories furnished with 3720A
1-5 Remember, when servicing the 3721A/3720A
a
System, that
3720A over an extended period of time may cause
burn damage
theCRT,
1-6
The storage CRT in the 3720A is mechani-
cally delicate and
movement
accidental damage in use, remember the following
points when handling the 3720A:
high intensity CRT display on the
to
the storage mesh or phosphors of
is
or by
easily damaged
being inverted.
by
To prevent
violent
3
hp
Part
Accessory
Detachable Power Cord Various
Rack Mounting
Servicing Extender Board 03720-70021
3721 A/3720A Interface Accessory 15549A
Trimming
Operating Manual 037 20-95000
Service Manual 03720-9500
Tool
Kit
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For
Free
Distribution
Only
Number
5060-8742
8730-001 3
1
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1-1
Model
3720A
10
3
4
5
6
7
8
9
1'1
1'2
2
1
27 26 25
28
29
30
L
31
24
23
22
13
14
1'5
16
ii
is
21
1-2
DISPLAY:
1.
calibrated
brated
DISPLAY SENSITIVITY:
2.
Scales the horizontal and vertical axes and the fre-
quency ..interval,
switch.
SCALE FACTOR:
3.
tion to be presented on the Display Sensitivity panel.
ERASE:
4.
on storage CRT screen, when not
INTENSITY:
5.
CRT
8
y
10 division CRT, with graticule
in
one division squares. Major axes cali-
in
0.2
division intervals. 1 division = 0.95cm.
illuminated digital readout.
Af,
as selected by Scale Factor
lever switch. Selects axis calibra-
pushbutton. Eradicates all traces displayed
potentiometer. Controls brightness of
beam.
Figure
in
1-2
STORAGE TIME:
6.
any display is stored, when
STORE mode.
FOCUS:
7.
beam.
PERSISTENCE:
8.
written trace, when not
clockwise position selects STORE mode.
INPUT:
9.
into Store 1 or
data
LINE-ON:
10.
instrument.
potentiometer. Adjusts sharpness of CRT
lever switch. Routes data from the 3721A
in
stores.
toggle switch. Controls ac supply to
Front panel controls and indicators
potentiometer. Varies the time
in
STORE mode.
potentiometer. Controls duration of
2
as selected.
in
STORE mode. Fully
In
HOLD
position retains
the
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Section
I
DATA:
11.
contents of respective store on CRT. In extreme righthand position transfers control to SPECTRUM switch.
12.
WINDOW:
triangular window to input data.
natural window occurs.
13. SPECTRUM:
contents to
14. REAL/COMPLEX:
REAL
COMPLEX
15.
GAIN:
GAIN VERNIER:
16.
I
gain adjustment between calibrated steps. In CAL,
gain selected by GAIN switch.
OVERLOAD:
17.
overloaded at any time during processing.
18. INTERPOLATION:
mode fractionally alters each of the
at
In AUTO
duced in each frequency interval df.
lever switch. In positions 1 or 2 displays
lever switch. ON position - applies a
OFF
lever switch. Controls choice of store
be
transformed.
-
calculates cosine components only.
rotary switch. Selects gain of integrator.
which the transform
lever switch.
-
calculates cosine and sine components.
potentiometer. Provides continuous
lamp. Indicates
potentiometer. In the MANUAL
10
equally spaced display points are pro-
if
integrator becomes
is
computed (up to Af max).
100
position
frequencies
21. HORIZONTAL:
presented on horizontal axis of CRT. Used together,
controls
presentation format of the display.
22.
-
CALIBRATION
Recorder plot size to be set.
23.
START:
pen across the X-Y Recorder chart.
RECORD:
24.
on to X-Y Recorder.
HORIZONTAL SHIFT:
25.
horizontally on CRT.
CAL:
26.
27.
28.
29.
potentiometer. Adjusts horizontal size of display.
HORIZONTAL GAIN:
mtal axis of displayed trace by a factor of
PHASE SHIFT:
-90'
phase shift to any display axis representing
phase information.
VERTICAL SHIFT:
tically on CRT screen.
rotary switch. Selects function to be
20
and
21
enable the user to select the
lever switch. Allows external X-Y
pushbutton. Initiates a single sweep of the
Lever switch. Controls outputting of trace
potentiometer. Moves trace
lever switch. Magnifies horiz-
lever switch. Adds
potentiometer. Moves trace ver-
0.
+goo,
2.
or
19. MARKER:
point of the displayed function.
VERTICAL:
20.
presented on vertical axis of CRT.
potentiometer. Puts a marker on any
rotary switch. Selects function to
be
30. CAL:
31.
potentiometer. Adjusts vertical
VERTICAL GAIN:
cation of vertical axis of displayed trace by a factor
of
2.
lever switch. Provides magnifi-
size
of display.
3
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Figure
1-2
Front panel controls and indicators (continued)
1-3
Model
3720A
1
1.
POWER MODULE:
and voltage selector switch.
AC
Line.
11 51230V. k 10%.
Fuse.
115V -2.5AT, 230V -1.25AT.
Clipin fuse. Cannot be changed without first
moving power cable.
Selector. Lever switch, 115V
selector. Cannot
power cable.
2.
EXTERNAL INTERFACE:
Duplicates 3721A Data Interface rear panel connector.
contains ac line socket, fuse,
48
to 65Hz. 250VA.
or
be
changed without
230V line voltage
50-contact connector.
first
re-
removing
24
4.
5.
6.
5
X-RECORDER:
axis of
Y-RECORDER:
axis of
PEN LIFT:
pen of an
facility.
VALID DATA:
indicate that valid data is present at
corder output connectors.
3
X-Y
X-Y
BNC connector. Output to horizontal
Recorder.
BNC connector. Output to vertical
Recorder.
BNC connector. Provides control signal for
X-Y
Recorder with remote pen control
BNC connector. Provides p signal to
6
7
X
and
c
Y
Re-
3. 3720A13721A CONNECTOR:
Input
socket for data from 3721A.
1-4
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50-contact connector.
Figure
1-3
-
NOTE:
denotes alternating current (ad.
Rear panel controls and connectors
L
_.
..
.
SECTION
GENERAL MAINTENANCE
2-1
INTRODUCTION
2-2 This section contains information on Identification, Instrument Dismantling and Repair Procedures for the 3720A.
2-3 IDENTIFICATION
2-4
Assembly Identification
2-5 Table 2-1 lists the designator,
Part Number
of
all assemblies in the 3720A
Spectrum Display. (Assembly
Assy in this Table).
title
and
is
abbreviated to
hp
Section
II
2-6 Assembly Connection Identification
2-7 Throughout this manual connections to printed
circuit assemblies are referred to by an abbreviated
form. For example, the connection to pin M on A5
assembly is written
2-8
Integrated Circuit Identification
2-9 Digital integrated circuits are referenced by
the physical location of each package (MC prefix) on the circuit board, and by their function in
the circuit
(G,
as
FF, etc,
A5(M).
as
applicable).
II
Assemb
I
y
Designator
A?
A2
4.3
A4
A5
A6
A7
A8
A9
A1
0
A1
1
A12
A13
A14
A1 5
Table 2-1 3720A Assemblies
Title
Not Assigned
Mantissa Range Assy
Decade Range Assy
Store
1
Assy
Store 2 Assy
Buffer Assy
Switch Card Assy
Hybrid Multiplier Assy
Window Multiplier Assy
Integrator Assy
Polar Converter Assy
Low Voltage Power Supply Assy
Control Logic
Triangle
Assy
Wave
Generator Assy
Sine Shaper Assy
hp
Part
Number
-
03720-70002
03720-70003
03720- 70004
03720-70005
03720- 70006
03720-70007
03720-70008
07320-70009
03720-7001
0
03720-7001
03720-7001 2
03720-7001 3
03720-7001 4
03720-7001 5
1
A16
A1 7
A1
8
A1 9
A20
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Deflection Amplifiers Assy
High Voltage Power Supply Assy
Range Indicator Assy
Range Units Assy
Storage Assy
03720-7001 6
03720-7001 7
03720-7001
8
03720-7001 9
03720- 70020
2-1
Model
3720A
.2-10 The MC number gives the physical location of
each package in the form of
2-11 With the printed circuit board held component side uppermost, and tongued connector near-
est,
numbering of the rows and columns of inte
grated circuits starts from the top left hand corner
of the board. The first figure following the MC
prefix
column. For example, MC52 will
row down and the 2nd column across, whilst
MC103 will be in the 10th row and 3rd column.
2-1 2 The second method
individual 'component blocks' helps the circuit
description and signal flow indication.
2-13 Each 'block'
its function
number indicating
diagram, in the same manner
etc, are referenced.
gives
the row and the second gives the
of
is
given a prefix according to
(see Table 2-2 for
its
position on the schematic
a
grid reference.
lie
in the 5th
identification of the
full
list) and
a
as
resistors, capacitors,
a
2-15 INSTRUMENT DISMANTLING
I
115/230V AC AND +158V DC SUPPLY
WIRES ARE EXPOSED WHEN ANY
THE INSTRUMENT COVERS ARE
MOVED. USE EXTREME CAUTION DURING TROUBLESHOOTING, ADJUSTMENT
OR
REPAIR. AVOID DAMAGE TO THE
INSTRUMENT BY DISCONNECTING THE
POWER CABLE BEFORE REMOVING
REPLACING COVERS, ASSEMBLIES
COMPONENTS.
2-16 Removing Top and Bottom Covers
1.
Remove the four cross-head screws holding the
cover in position.
2. Slide the cover about lin (2.5cm) to the rear
and lift clear.
NOTE:
the tilt stand from the bottom cover before
rem ova
It is not necessary to remove the feet
I.
DANGER
OF
RE-
OR
OR
or
c
Table 2-2 Digital integrated circuit abbreviations
I
Abbreviation
B
DD
FF
G
IG
MS
SR
IC
2-14 All
assembly connections. For example, lead 12 on
integrated circuit MC25, on A5 assembly, is
referred to
scribing schematics, lead
assembly A2 would be referenced A2FF9(6).
leads are referred to in the same way
as
A5MC25(12). Similarly when de-
F
unction
Buffer
Decade Divider
FI ip-f lop
Gate
Inverter Gate
Monostable
S
h if t Register
6
on Flip-flop 9 on
as
2-1 7 Removing Side Covers
1. Remove the four cross-head screws securing
each cover.
2. Lift cover clear.
2-18 Front Panel Access
1.
Remove the
instru ment.
Release the two screws securing the Al/All
2.
retaining strip and lift this strip clear.
3.
Remove assemblies A2 to A1
4.
Release the two screws
of the right hand and left hand board guides.
Withdraw the board guides to
5.
the rear
Re-assembly is
6.
cedu re.
top
and
of
the front panel.
a
reversal of the above pro-
bottom
at
covers from the
1
inclusive.
the base of each
give
access
to
2-
2
WWW.HPARCHIVE.COM
Section
II
2-19 MAINTENANCE
CAUTION
When handling the 3720A do not
instrument onto
2-20 Locations
2-21 Access
-22V and -5OV power supply fuses
removing the
2-22 The +12.6V power supply fuse
Storage assembly. Access to the fuse
removing the
2-23 Replacement
to
its
front panel.
of
dc Power Supply Fuses
the +158V, +50V, +15V, +5V,
bottom
top
cover of the 3720A.
cover of the instrument.
of
Display Sensitivity Lamps
tilt
is
gained by
is
on the A20
is
gained by
the
-1
5V,
Remove the four nuts holding the A18/A19
6.
housing assembly to the front panel. If
necessary, gently move the wiring to gain
access
Release screw
7.
8.
Holding the A18/A19 housing assembly with
one hand, gently press the Display Sensi-
tivity panel on the front of the instrument
with the other hand to release the assembly.
Replacement
9.
bly
to the nuts.
B
shown in Figure 2-1.
of
the A1 8/A19 housing assem-
is
a
reversal of the above procedure.
3
.3
2-24 The lamps are mounted on the A18 and A19
assemblies.
housing assembly must be removed from the
instrument and then dismantled.
2-25 Removal
1.
Remove the
fluted aluminium plate from the instrument.
Note that the fluted aluminium plate
adhesive.
2.
Release the two screws securing the Al/All
retaining strip and
3.
Remove assemblies A2 to A6 inclusive.
4.
Release the two screws
left hand board guide and withdraw the
board guide.
Remove the left hand board guide support
5.
by releasing the three screws A shown in
Figure 2-1.
To
replace the lamps the A18/A19
of
A18/A19 Housing Assembly
top
cover,
left
side cover and
lift
this strip clear.
at
the base
is
of
self-
the
(
Figure 2-1 A18/A19 Housing assembly
retaining screws
2-26 Dismantling the A18/A19 Assembly
1.
Remove the A18/A19 housing assembly
detailed in Paragraph 2-25.
2.
Release
units lamp separator in place.
3.
Slide
I
If
the separator
lamps will be damaged.
the two screws holding the range
the separator away from the assembly.
CAUTION
is
forced sideways the units
103720
xOO56j
as
WWW.HPARCHIVE.COM
2-3
Model 372QA
as
4. Pull out A18 and/or A19 assemblies
quired and disconnect the A18/A19 interconnecting cables.
5. Renew the faulty lamps.
6.
Re-assembly is a reversal of the above pro-
cedu re.
2-27
Cleaning The Air Filter
2-28 The air filter on the fan cover of the 3720A
should be removed periodically for cleaning. Four
screws secure the fan cover to the back panel.
2-29
Cathode Ray Tube Removal/Replacement
DANGER
re
12. Remove the black light shield surrounding
the CRT screen by gently squeezing it
top centre and bottom centre and pulling
clear.
13. Unscrew and remove the bezel.
14. Slacken theclamp on the rear of the CRT neck.
15. Holding the screen
gently press the rear of the tube with the
other hand and slide the CRT forward and
out.
NOTE: To prevent accidental damage to the
storage mesh
DO
WNWA R
16. Re-assembly
cedure.
DO
DS.
is
of
CRT with one hand,
NOT TILT THE CRT FACE
a
reversal of the above pro-
at
the
WHEN HANDLING THE CRT ALWAYS
WEAR GOGGLES AND GLOVES. HANDLE
WITH EXTREME CARE.
Disconnect the power cable from the 3720A
1.
top
Remove the
2.
Remove the back panel high voltage cover.
3.
Unplug the CRT socket.
4.
Release the two screws holding A20 in
5.
place and
Unplug the wires connected to the neck
6.
of the CRT. The colours of the wires are
shown in Figure 2-2.
Remove AZO support block by releasing
7.
the two screws which hold
Release
8.
retaining strip and lift this strip clear.
Remove assemblies A2 to A6 inclusive.
9.
Remove the two screws holding the high
10.
voltage connector A55J1 in place. Disconnect
the flexible wiring from this connector.
Unplug the wire from the collimator conn-
11.
ector on the side of the CRT.
lift
the two screws securing the Al/All
cover from the instrument.
out A20.
it
in place.
1
A16 DEFLECTION AMPLIFIERS ASSY
cu
CR3
Figure
2-2
CRT neck connections
I
2-4
1
WWW.HPARCHIVE.COM
Section
I1
2-30 Line Transformer Removal/Replacement
Tilt the 3720A onto
1.
Remove the
2.
top
and
its
bottom
right hand side.
covers from the
instru ment.
3.
Release
the
two screws holding A20 in place
and lift out A20.
Remove the back panel high voltage cover.
.4.
Remove the internal high voltage cover.
5.
Unplug the five wires from A17 and then
6.
remove
7.
Remove XA20 mounting plate and pull
AI
7.
gently to the side.
Note the wire colours against the corres-
8.
ponding pin numbers on the top and bottom
of the line transformer and then unsolder
the connections.
Remove the four screws holding the trans-
9.
former in position. Retain the underside
nuts and safety mouldings and pull the transformer out through the top of the instrument.
Re-assembly
10.
is a
reversal of the above pro-
cedu re.
2-31 Chassis Mounted Transistors Plate
Removal/Replacement
it
2.
Remove the internal high voltage cover.
3.
Remove the rear panel high voltage cover.
4.
Unplug the five wires from A17 and then
remove A1 7.
Unsolder the black and grey wires from the
5.
ground
6.
Release the two screws holding A20 in place
tag.
and lift out A20.
1.
Remove XA20 mounting plate.
8.
Release
the two screws securing the Al/All
retaining strip and lift this strip clear.
Remove assemblies A2 to A6 inclusive.
9.
Remove A20 support block. Two screws
10:
hold
it
in place.
Remove the two screws holding the high
11.
voltage connector A55J1 in place. Disconnect
the flexible wiring from this connector.
12.
Unsolder the wires from XA(20(L) and
XA20(N) after noting their colours.
13.
Remove the wires from the grommet.
Lift out the high voltage tripler assembly.
14.
15.
Re-assembly
is a
reversal of the above pro-
cedu re.
Remove the
1.
top
cover and
right
side cover
from the instrument.
2.
Release
the
two
screws securing the A12/
A16 retaining strip and lift this strip clear.
Remove assemblies A12 to A16 inclusive.
3.
4.
Release
the two screws
at
the bottom of the
transistor plate.
Withdraw the plate.
5.
6.
Renew the faulty transistors
7.
Re-assembly
is a reversal of the above pro-
as
necessary.
cedu re.
2-32 High Voltage Tripler Assembly Removal/
Replacement
Remove the
1.
WWW.HPARCHIVE.COM
top
cover from the instrument.
2-33 REPAIR PROCEDURES
2-34 Etched Circuits
2-35The etched circuit boards in the Spectrum
Display are of the plated-through type, consisting
of metallic conductors bonded to both sides of the
insulating material. The metallic conductors are
extended through the component mounting holes
by
a
plating process. Solder connection can be
made from either side of the board with equally
good results. Following
are
recommendations and
precautions pertinent to etched circuit repair
work
:
a.
Avoid unnecessary component substitution;
it
can result in damage to the circuit board and/or
adjacent components.
2-5
Model 3720A
b. Do'not use
etched circuit boards. Excessive heat may lift
conductor
ing iron
c.
or
is
sufficient.
Use a suction device, eg, Soldapult,
a
high-power soldering iron on
damage the board. A
40
watt solder-
or
wooden
a
toothpick to remove solder from component
mounting holes. Care must
be
i3ken when clearing out component mounting holes; never use
sharp metal objects, such
as
an awl
or a twist-drill,
which could damage the plated-through conductor.
d. After soldering, remove
soldered areas with
e.
When removing a multiple connection com-
ponent, such
it gradually, using
a
as
an integrated circuit, loosen
a
gentle side-to-side motion,
excess
flux from the
soac and water solution.
to avoid damage to the plated-through conductors.
2-36
Integrated Circuit Removal/Replacement
2-37 There are three recommended methods of
removing integrated circuit packages from
a
printed
circuit board:
a.
Solder Gobbler.
Solder
iron with
is
removed from the board by a soldering
a
hollow tip connected to a vacuum
source. This permits an
so
that
it
may be replaced if an error has been
This
is
the best method.
IC
to be removed intact
made in diagnosis.
b.
Desoldering
8690-0060).
vacuum operated Solder Gobbler
Tool.
(Soldapult
This method
-
hp
is
recommended if
is
not available.
Part
No.
Remove the solder from each lead by using the
soldering iron and the desoldering tool together.
c.
Clip
Out.
This is the
three methods. Clip the leads
as
possible.
With a soldering iron and long nose
least
satisfactory of the
as
close to the case
pliers carefully remove the leads from each hole.
a
2-6
WWW.HPARCHIVE.COM
Section
I I I
SECTION
111
REPLACEABLE PARTS
3-1
INTRODUCTION
3-2
This section contains information for ordering replaceable parts. Table
numerical order of their reference designators and
a.
Hewlett-Packard stock number.
Description (abbreviations given in Paragraphs
b.
c.
Total quantities
d.
Manufacturer and Manufacturer's part number (Code
1
J
3-3
ORDERING INFORMATION
3-4
To
order a replacement part, address the order or enquiry to your local Hewlett-Packard Sales and
Service Office (addresses are listed
of
each part used in the instrument (refer to TQ column).
at
the rear of this manual).
gives
the following information for each part:
3-7,
3-8
and
3-9).
List
of Manufacturers given in Table
3-1
lists parts in alpha-
3-2).
3-5
Specify the following information for each part:
a.
Model and full serial number of instrument.
b. Hewlett-Packard stock number.
c.
Circuit reference designator.
d. Description.
3-6
To
ocder a part not listed in the tables, give a complete description of
and location in the instrument.
3-7
REFERENCE DESIGNATORS
A
C
CR
DS
F
IC
J'
=
assembly
=
capacitor
=diode
=lamp
=
fuse
=
integrated circuit
=
connector (female)
L
MC
MP
P
0
R
=
inductor
=
micro circuit
=
metal work/
miscellaneous part
=
plug (male)
=
transistor
=
resistor
the
part including
S
SR
T
XA
its
function
-=
switch
=
shift register
=
transformer
=
printed circuit
board edge
connector
WWW.HPARCHIVE.COM
3-
1
Model 3720A
3-8
LIST
OF
ABBREVIATIONS
A
AC
AL
AMPL
ASSY
BD
BHD
BKDN
CBL
COAX
COMP
CONCEN
CONN
CONT
CRT
DIO
DPDT
FET
FXD
GE
HV
HS
IC
=
ampere
=
alternating
current
=
aluminium
=
amplifier
=
assembly
=
board
=
bulkhead
=
breakdown
=
cable
=
coaxial
=
compensated
=
concentric
=
connector
=
controlled
=
cathode ray tube
=
diode
=
double pole,
double throw
=
field effect
transistor
=
fixed
=
germanium
=
high voltage
=
high speed
=
integrated
circuit
INCD
IND
INV
I/P
K
=
incandescent
=
inductor
=
invert
=
input
=
kilo
(
lo3)
LED = light emitting diode
LH
LIN
LVR
M
MA
MH
MTG
MW
NAND
=
left hand side
=
linear
=
lever
=
mega
(
1 O6
=
milli ampere
=
milli henry
=
mounting
=
milli watt
=
not and
)
NOR =notor
NPN
=
negative-positivenegative
NSR
OPER
PC
PF
PIV
PNP
=
not separately
rep
I
acea ble
=
operational
=
printed circuit
=
pic0 farad
=
peak inverse volts
=
positive-negative-
(1
O-'*
positive
QUAD = quadruple
REC
RH
=
rectifier
=
right hand
side
RND =round
=
RTRY
SI
SPDT
rotary
=
si I icon
=
single pole,
double throw
SPST
=
single pole,
single throw
SW
T
TEMP
TGL
TQ"
UF
=switch
=
throw
=
temperature
=
toggle
=
total quantity
=
micro farad
(10-6)
V
=
volt
VAR = variable
W
WVDC
XFMR
=
watt
=
working voltage
d i rec
t
cu r re n
=
transformer
XR =expander
XSTR
=
transistor
t
3-9
COLOUR ABBREVIATIONS
BLK
BRN
RED
ORN
2
3-
=
black
=
brown
=
red
(2)
=
orange (3)
WWW.HPARCHIVE.COM
(0)
(1
)
'except for those components with#TQ after the description. In
cases
these
the number after#
multiply the number in the total quantity column by
TQ
for true quantity.
=
YEL
GRN
BLU
VI0
yellow
=
green
=
blue
=
violet
(4)
(5)
(6)
(7)
GRY
=
grey
WHT =white
SI
LV
=
silver
(8)
(9)
Table
3-1
Replaceable Parts
Ref
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
All
A12
A13
A14
A15
A16
A17
A18
A19
A20
A41
442
A43
A
44
a45
446
44
7
A48
A49
4
50
451
PartNo
8120-1351
8120-
812
8
120- 1369
0 3 72
03720-95001
03
720-7002
5060-8742
155496,
921
9220-1546
9220-1551
9220-1547
9
22
9220-1549
03
72
03720-70003
03
72
0372
03720-70006
0
3720-
03720-70008
03720-70009
03720-700
03
72
0372
0
3 72
03720-
03720-70015
03720-
j
0372003720-7001 8
03720-70019
03720-70020
0372
03720-70042
03720-
03720-70044
03
720-
03720-70046
03720-70047
0372
03720-70049
03720-70050
03720-7005
HP
1348
0-
1689
0-9 5 0 0 0'
1-1356
2-0
32 5
0-
70002
0-
70
004
0-70005
70007
LO
0-
700
1
0-7001
0-
700
1
7001
70016
7001
0-7004
70043
7004
0-
70046
TO Description Mf r Mfr Part
ACCESSORIES
1
2
3
4
7
1
5
1
CABLE POrJER DETACHABLE #UK#
HANUAL OPERATING
MANUAL SFRVICE
1
BOAHD EXTENDER SERVICING
KIT RACK MOUNTING
ACC€SSURY 3721A/3720A INTERFACE
PACKING MATtRIALS
CARTON
1
PAD FRUNT
1
ASSY CARTON FLOATER
1
PAD BOlTOY
1
BAG POLYTHENt
1
PAD DUUALE CELL
1
NOT ASSfGNED
ASSY HANTISSA RANGE
1
ASSY DECADE KANGE
1
ASSY STORE
1
1
ASSY
1
ASSY BUFFER
ASSY
1
ASSY HYBRID MULTIPLIER
1
ASSY WINOOd MULTIPLIER
1
ASSY INTEGRATOR
1
ASSY POLAR CONVERTER
1
ASSY LOW VOLTAGE PUWER SUPPLY
1
ASSY CUNTK'OI. LOGIC
1
ASSY TRIANGLE WAVE GENERATOR
1
ASSY SINC- SHAPER
1
ASSY OEFLFCTION AMPLIFIERS
1
ASSY HIGH VOLTAGF PUWER SUPPLY
1
ASSY RANGE INOICATLIR
1
ASSY RANGE UNITS
1
ASSY STORAGE
1
ASSY
1
1
ASSY CBL HAKNESS HV
1
ASSY CBL HARNESS PRIMARY POWER
ASSY CBL HANNESS FRUNT PANEL
1
ASSY CHL
1
ASSY CHL HAKNFSS RH
1
ASSY CdL HAtNESS INTEKCONNECTIUN5
1
ASSY
1
ASSY COL
1
CHL HARNESS
ASSY
ASSY CBL HAkNESS DISPL4Y SEhSlTIVITY ~0007
1
STOKE
2
SNITCH
CHL HARNESS
CBL
CARD
MAIN
HARNESS
HARNESS
HAgluESS POHER XSTR
LH
SfCONDAKY PdMFR
PIJdER
MA#
#NE
#
SC
HUKO
ZAUSZII
XFMR
#
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
f0007
E0007
E0007
E0007
E0007
E0007
F0007
E0007
E0007
E0007
E0007
E0007
E0007
F0007
E0007
E0007
F0007
E0007
f0007
k0007
f00g7
E0007
E0007
E0007
E0007
FOOO~
No
WWW.HPARCHIVE.COM
Abbreviations are listed in the introduction
to
this section
3-3
Model
3720A
Ref Desig
A52
A53
A55
81
c1
c2
c3
c4
c5
C6
c7
C8
CR1
CR2
CR3
CR4
CR5
CRb
DS
1
F1
F2
F3
F4
F5
F6
F7
FB
J1
J2
J3
J4
J5
J6
J7
L1
MP
1
Part
"'
No
03720-70052
03720-70053
03720-70055
3160-0209
03720-70033
03720-30131
0180-0024
0
180-0046
0
180-0204
0
18
0-0
2 13
01
80-0204
1520-0001
0180-0369
1520-0001
0180-0046
1520-0001
01
80-0116
1901-0495
1200-0080
1901-0495
120@-0080
190 1-0495
1100-00R0
1901-0495
1200-0r)80
1Y02-
1201
1200-0080
1Y01-0040
5082-44 I7
5082-4409
2110-0305
2 110-0380
2110-031
21 10-0235
2110-0303
2
11
21 10-0202
211C-0235
2110-0320
5060-1 188
7 124- 192
1251-0087
1251-0087
1150-0083
1250-0083
12 50-0083
1150-0083
01200-66001
0
3720-
0-03
100
1
83
8
13
Table
3-1
Replaceable Parts (continued)
TQ Description Mfr Mfr Part
1
1
1
1
1
1
34
4
5
140
1
1
1
1
1
2
1
1
1
2
1
ASSY
CHL Al8/A19-P1
ASSY C8L A18/A19-P2
ASSY
HIGH VIILTAGE TKIPLEK
FAN TUHEAXIAL
ASSY
FAN FILTEK
SPACER FAN
C
FXG 40UF +50-106 453WVDC
C
FXD hOOUF +75-106 ZOOWVDC
C
FXU 2800UF
C
FXD 5000UF
C
FXD L800UF
PAATt MTG
C
FXD 2900UF +75-10t: 6OWVDC
PLATE MTG
C
FXO 600UF +75-10% 2OOWVDC
PLATt MTG
C
FXO 6.8UF
DlO
SI
INSULATOR
010
SI
INSULATOR DIU
DIO
SI
INSULATOR
DIO
SI
IkSULATOK
DIU
SI
LAMP WHT #JVERLUAD#
MOUNT
FUSE
FUSE SLOW RLOd 2.5AT 250V #115V LINE#
FUSE SLOW HLOW 0.062AT 250V
FUSE
FUSE
FUSE SLOW
FUSE
FUSt SLOrr
FUSt
LINE MODULE #AC PilkEK INPUT#
CONN MULTI
CONN MUCTI
CONN
CONN
CONN
CONN
CUIL TRACE ALIGN
PANEL FRONT
#TQ
4#
+loo-10%
+50-101
+100-10%
10%
50PIV 12A
DIU
50PIV
50PIV 12A
50PIV 12A
I
NG CL I P
SLOW
SLOd
SLOk
SLOW BLOW O.5AT 250V
SL3d 8LDW
CCJAX
COAX
COAX
CUAX HHD
#TP
11A
#I4
DIU
#Tbl 2#
DIU
#TU
RLOd 1.25AT 250V
RLOW 0.2AT 150V
LAT 250V
8LOvu
BLOW 8AT 250V
BLUW O.2AT 250'4
0.15AT 250V
LABEL 115-230V
RHO
MTG 50-HAY
BHD
MTG 53-WAY
#3720A/3721A
dHD
MTG
MTG
RHD
HHD
MTG BNC #PEN LIFT#
MTG
4OWVDC
25WVGC
40WVUC
35dVDC
2L
2#
2#
#EXTERNAL
#X
8NC
IrY
8<\C
8NC
#VALID DATA#
#230V LINE#
I
NTC-KF
AC
CONNECTOR#
KECORDtRU
PECflRDER#
E0007
E0007
E0007
23936 8500
E0007
E0007
56289 D324410F8
56289 032569DFP
56289 D37694DFP
09684 505
56289 D376Y4DFP
56137 X-831
56289 D39823UFP
56137 X-831
56289 032569DFP
56137 X-831
56289 150D685X90358Z-DYs
E0007
76530 294834
E0007
76530 294834
E0007
76530 294034
E0007
76530 294834
04713
Ik3998A
76530 294834
12065 SG5050
E0007
E0007
71400 MDX-1-1/4A
71400 MDA2-1/2
71400 MDL-1/16
71400 MDL-8
71400 MDX-2A
71400 MOA8
71400 MOL-l/Z
71400 MOL-8
71400 MDL-15/100
E0007
E0007
02660 57-40500-375
€
#
02660 57-40500-
95712 30624-1
95712 30624-1
95712 30624-1
95712 30624-1
E0007
E0007
'
3
75
No
3-4
~~ ~
Abbreviations are listed in the introduction to this section
WWW.HPARCHIVE.COM
Table
3-1
Replaceable Parts (continued)
Ref Desig
MP2
YP3
MP4
YP5
MP6
MP7
MP8
MPY
YPlO
MPll
MP 12
MP13
MP14
MPl5
MPl6
@
Y
t
YP17
MPl8
MP19
MP20
MP21
MPZ2
MP23
YP24
MP25
MP26
MP27
MP28
MP29
MP30
MP3
MP32
MP33
MP34
82
Q3
a4
a5
616
87
Q8
1
Part
HP
No
03 720-301 36
03720-30142
5020-0476
5040-0508
7120-0995
0372
0-
10001
03720-10006
03720- 10007
03720-30130
5
06
0-
n
7
72
0-
0-
07
87 2 7
10008
700 3
10019
8
2
5060-8731
5060-0767
1490-0030
5060-0736
500
5000-0053
5060-0222
5060-8735
0372003720-10025
03720-70037
03 720-301 37
03 720- 30 13
03720-10033
03 720-r)0141
03
03720-70031
03720-30139
03720-
03720-301 32
03720-10018
03720-30132
03720-10031
1854-0063
1200-0041
1200-0043
1854-0063
1200-0041
1200-0043
1854-0063
1200-0041
1200-0043
1854-0063
1200-0041
1200-0043
1854-0063
1200-0041
1200-0043
1854-0063
1200-0041
12 00-0043
1854-0330
0340-0451
18 54-03 20
0340-0469
TO Description Mf
1
WlNDoW DISPLAY SENSITIVITY
MASTER OISPLAY SENSITIVITY
1
RkZEL
1
LIGHT SHIELD BLACK
1
PLATE CAUTION
1
PANtL REAR.
1
CUVFk PANEL HEAR
1
COVtR FAN
1
FOOT PANtL REAR
1
COVER TOP
1
COVER ROITOY
1
FOOT LTQ 5#
1
STAND TILT
1
FKAME SIDE
1
COVEK SIDE
1
PLATE FLUTED AL
1
HANOLk
1
KETAINER HANDLE
1
COVER HV ASSY
1
PLATE PUWEA XSTR
1
ASSY
HOUSING A18/A19
SEPARATOR RANGE UNITS LAMPS
BLOCK
DIFFUSER X10 MULTIPLIER
MASTtK
STRIP RETAINING
STRIP KETAINING AlZ/Al6
BLOCK
GUIDE BOARD RH
SUPPORT GUIDE BOARD
GUIDE BOAR0
SUPPURT GUIDE HOAKD
PLATE SUPPURT
XSTR SI NPN
MOUNTING BASE XSTR
INSULATOR
XSTR
Si
MOUNTING RASE XSTR
INSULATOR XSTR
XSTR
SI
MOUNTING BASE XSTR
INSULATUR XSTK
XSTR SI NPN #-15V#
MOUNTING BASE XSTR
INSULATOR XSTK
XSTR
SI
MOUNTING BASE XSTR
INSULATOR XSTR
XSTH
SI
MOUNTING RASE XSTR
INSULATOR XSTR
XSTR
SI
INSULATOR XSTR
XSTR SI NPN #+12.6V#
INSULATOR XSTH
2
6
6
6
1
1
1
1
1
1
1
1
1
1
1
#TQ
#TQ
ASSY
SIDE
X10
MULTIPLIER
X10
MULTIPLIER
A20
SUPPORT
LH
#+50V#
XSTK
NPN #+15V#
NPN #+5V#
NPN #-22V#
NPN #-5OV#
NPN #+158V#
UTU
3#
2#
2#
#TQ
2#
#TQ
#TU
2#
Al/All
2#
E0007
E0007
28480
E0007
E0007
€0007
E0007
E0007
E0007
E0007
E0007
E0007
91260 OBD
28480
E0007
28480
28480
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
E0007
02735 2N3055
71785 133-3276530 293011
02735 2N3055
71785 133-32-
76530 293011
02735 2N3055
71785 133-32-
76530 293011
02735 2N3055
71785 133-32-
76530 293011
02735 2N3055
71785
76530
02735
71785
76530
04713
04713
04713
02375
r
133-32-
293011
2N3055
133-32-10-0
29301
SJE9Ol
14H 52600FO
SJElOl
DF
1038
Mfr Part
0-013
0-013
0-013
0-013
10-0
3
1
3
3
No
WWW.HPARCHIVE.COM
Abbreviations are listed in the introduction to this section
3-5
Model
3720A
Ref Desig
R
K3
F.
4
R5
K6
K7
R8
K9
R10
R11
K12
R13
R14
K15
Kl6
R17
R18
K
19
R20
R2
1
K
22
R23
R24
K25
H
2 6
K27
51
52
s3
54
55
S6
Part
HP
No
2100-2757
0
37
0-
1007
2130-2751
0370-1007
2100-3236
0370- 1003
5040-0421
2
100- 3237
0370-1007
2100-3238
2100-3239
0370-1099
2100-297.1
03 70-1 099
2 10 0-2 7 57
0370-1007
2
100-2
758
1490-0048
0590-0043
2100-2757
0370- 1007
2100-2750
1490-0848
0
590-
00
75 7-0290
757-0728
757-0290
75
7-OZRO
75 7-
ozeo
7
5-7- 04 2 4
6
9
a
-
5
l,
4 3
90
2100-2757
21OG-1530
06Y 8-3457
0698-3 162
0
0
075 7-0290
0
0698-31 62
0757-0280
o
o
0
0698-5490
0698-5490
o
3101-0038
3100-0640
0370- 16 10
3101-0044
5040-3017
3190-0644
0370-0929
3100-3044
0370-0929
3100-0644
Table
3-1
Replaceable
Parts
(continued)
TQ Description Mf r Mfr Part
2
82
2
137
3
5
K VAH 5K OHM 20% 2W LIN #INTENSITY#
KNOB POINTER
K
VAR
1M
OH4
20%
Zri
KNUR POINTER
R VAR 5M OHM
KNOJ RND
COVER INSULATINL POTENTIOMETER
K
VAK
1M
KNOB POINTER
R
VAR 1K OHM
R VAR DUAL 10K OHM
KNOB POINTER
K
VAR
2.5K OHM
KNOB POINTER
R VAR 5K OHM 20'1; 2W LIN #VERT SHIFT#
KNOB POINTER
R VAR 2.5K OHM 20% 2H LIN #CAL-VEKTY
2
BUSHING POTENTIOMETER
PILLAR
2
R VAR 5K OHM 204:
KNOH POIVTEK
K VAK 2.5K OHM 20%
BUSHING POTENTIOMETER
PI
LLAR
R
VAR 5K OHM
R VAR 2OOK OHM 30%
K
FXD 316K OHM
K
FXD 4,6.4K OHM
R
FXO 6.19K OHM
R FXD 619 OHM
R FXD 6.19K UHY
R
FXU
6.19K OHM
K
FXD 46.4K OHM
R FXD 1K OHM
K
FXD 1K
R
FXD IK
K FXO 1.1K OHM
2K
R FXO
2K
R FXD
R FXD 2K
Svr
TGL DPDT #LINE#
Sw
LVK 1 SECTION 3T #SCALE FACTOKW
KNOB LVR LILIVE DLK
SW
PUSHRUTTON SPST #ERASE#
PUSHBUTTUN
PAdT
Of
Sw
LVK 1 SECTION
KNOB LEVER
Sw
1
LVR 1 SECTION
KNlO9 LEVER
SW
LVR 1 SECTION 31 #SPECTKUM#
OHM LIN
+SW
2OX
1%
OHM
1%
OHY
14 1/8W
OHM
1%
OHM
11;
OHM
lb
R4
10%
LIN #STOHAGE TIME
LIN #FOCUS#
t
SW
SPST #S4#
SPST #S20# #GAIN#
t
SW
#INTERPOLATION#
10%
1W
+
2U
LIN #HORIZ SHIFT#
2H
LIN #CAI-HORIZ#
2H
LIN #TRACF ALIGN#
1/5W
1X
l/0d #C1#
1%
1/8H #C2#
1%
1/8W
1K
1/4W #C4#
1%
1/8W
1%
118H
1%
1/8W #C7#
l/8N
1/8N
lb.
1/8Y
1/8M
l/dH
1/BM
3T
#INPUT#
3T
#DATA#
#PfKSISTENCE#
SPST #S11#
SW
DPST #S21#
#MARKER#
LIN
#ASTIC#
#C3#
#C5#
#Cb#
71450 551
14493 0370- 1003
71450 551
14493 0370-1003
11236
551
14493 0370-1003
28480
01121
GS
14493 0370-1003
01121
GS
01121 70
20480
20846 TYPE53
28480
71450 551
14493 0370-1003
71450
551
E0007
E0007
71450 551
14493 0370-1003
71450
551
E0007
E0007
71450 551
71450
70
19701 MF4C
19701 HF4C
75042 CEA
19701 MF52CT-0
75042 CEA
75042 CEA
19701
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
19701 MF4CT-0
91637 CMF-L/t0-32T-2
91637 CMF-1/10-32T-2
91637 CMF-1/10-321-2
04009 83054-H
76054 184
14493
81073 39-LNO
E0007
76854 LA4
14493 0370-0929
E0007
14493 0370-0929
76854
-0
-0
MF4CT-0
184
No
3-6
~~~~ ~
Abbreviations are listed in the introduction
WWW.HPARCHIVE.COM
to
this section
Table
3-1
Replaceable Parts (continued)
Ref Part
SB
V
59
s
10
1
51
s12
513
S
14
S15
S16
517
518
SI9
520
521
11
VI
XA1
XA2
XA3
XA4
XA5
XA6
XA7
XA8
XA9
XA
10
XA11
XAll
XA13
XA14
XA15
XA16
XA17
XA
18
XA19
XA2O
A2
"'
NO
C370-0929
3100-0641
03 70-092')
3
100- 06b6
0370-0929
3100- 3046
0
370-
11
0370-1811
3100-3047
03 7 0-
31
037
3100-0640
03
3100-0641
0
3100-0641
0
3 100-0
03 70- 18
3 10 1-0044
5040-3017
3100-0655
0370-
9100-0632
03721-50007
508 3- 2
1251-0335
1251-0335
1251-0335
125 1-0335
1251-0335
1251-0335
1251-0335
125 1-0335
1251-0335
1251-0335
1251-0335
1251-0335
1251-0335
1251-0335
1251-0335
1251-0335
1251-0172
12511251-1190
125
03720-30002
4040-0750
03
11
07
GO-
3048
0-
1
107
70- 18 10
370- 18 10
370- 18 10
644
10
iaio
1
52
11
90
1-1
190
TQ
16
KNOB LEVER
SW
LVN
3
KNUH LEVLK
Svi
1
KUilR LEVER
Sh'
1
Kk!lB
1
KNUB CONCFN INNER
1
PAKT OF R6
SW
1
KNOH
2
1
SA
KNOB
SW
KNO8 LVR OLIVt BLK
Sw
KUOR LVK OLIVE BLK
SW
KYOB
SW
KNOB LVR OLIVE BLK
SW
PUSHBUTTdN
SW
KN03 LVR OLIVE BLK
PART
PART
XFMR LINE
1
1
COVER
1
CRT
CUNN
CONN
CONN NULTI
CUNN MULTI BHO MTG 2x24-WAY PC 8D
CUNN
CONN MULTI
CONN MULTI BHD
CONN MULTI
CUNN MOLT1
CONN MULTI BHD
CUNN MULTI
CUNN MULTI SHD MTG 2x24-WAY
CONN
CONN MULTI
CUNN MULTl
CUNN
CUNN MULTI
1
CONN MULTI
3
CONN
CON& MULTI BHD MTG 2X12-dAY
M4NTISSA KANGE
PC
1
EXTKACTOK
2
SPOT
LVK ACTUATED
KTYY
L
SECTIUiv 7T #GAIN#
POIhTER
RTRY
2 SECTION 51 #VEKT
RTKY
1
SECTION 4T #HURIZ
LVR 1 SECTION
LVR
SPOT
LVK
SPOT
CVR
OLIVE BLK
LVR 1 SECTION 31 #CALIBRAT
PUSHDUTT(1N
LVR 1 SECTION
OF
R5
OF
R7
LINE XFMR
STORAGE E0007
MULTI BHD
MULTI BHD
BHD
MULTI
BHD
t3HD
BHD
t5HD
3tiD
MULTI BHO
BHD
BtiD
MULTI
tlhD
BHD
RHD
MULrI BHD
a0
BLANK
#NSK#
PC
Description Mf
#dINUOW#
KTKY
DPDT #KEAL/CONP#
CAL#
NTAL#
31
#PHASE
#VEKTICAL GAIN#
#HORIZONTAL GAIN#
SPST
#START#
3T
#CONTROL#
#TU
2#
MTG
2x24-WAY
MTG
2x24-WAY PC BD
MTG
2x24-WAY PC
MTG
2x24-WAY PC
HTG
2x24-WAY
MTG
2x24-WAY PC
MTG
2x24-WAY
MTG
2X24-CIAY PC
MTG
2x24-WAY
MTG
2x24-WAY
MTG
2x24-WAY
HTG
2x24-WAY
MTG
2x24-WAY PC
MTG
2x24-WAY PC BO
MTG
22-WAY
MTG
2x12-WAY PC ED
MTG
2x12-WAY
ASSY
BD
RED
SHIFT#
'ION# 76854 184
PC
OD
BO
BD
PC
8D
BD
PC
HD
8D
PC
8D
PC
BD
PC
BD
PC
HD
PC
BD
tlD
PC
80
PC
BD
r
14493 0370-0929
76854 184
14493 0370-0929
20480
14493 0370-0929
E0007
14493 0370-1003
E0007
E0007
E0007
E0007
E0007
768 54
14493
76854
1449 3
76854
14493
14493
81073 39-1NU
E0007
E0007 1
14493
E0007
E0007
95238 K600-13-PCGO24
95238 K60O- 13-PCGD24
95238 K6OO- 13-PCGD24
95238 K600-13-PCGD24
95238
95238 K600-13-PCGD24
95238 K600-13-PCGD24
95238 K600- 13-PCGD24
95238 K600-13-PCGD24
95238 K600-13-YCGD24
95238 K600- 13-PCGD24
95238 K6OO- 13-PCGD24
95238 K600-13-PCGO24
95238 K600-13-PCGD24
95238 K600- 13-PCGO24
95238 K60O- 13-PCGD24
7
1
785 2
7 1785 2 5 1- 12- 30- 261
7 1785
71185 251-12-30-261
E0007
14493 5040-5113
84
84
84
K600-
50-
2
5
1-
Mfr Part
13-PCGD24
2
2- 3
0-
2
12- 30-261
1
0
No
It
~~~ ~~~ ~~
Abbreviations are listed in the introduction
j
..
i
WWW.HPARCHIVE.COM
to
this section
3-7
Table
3-1
Replaceable Parts (continued)
Ref Desig
A2C1
A2MCll
A2MC12
AZMC
13
A2MC14
A2MC 15
A2MC
16
ALMC 17
AZYC21
A2MC22
A2MCZJ
A2MC24
A2MC25
A2MC 26
AZMC27
I2MC31
AZMCJZ
A2MC 33
A2MC34
A2MC35
AZMC
36
A2MC37
AZMC41
A2MC42
A2MC43
A2MC44
A2MC45
A2MC46
AZMC47
A2MC51
A2MC52
A2MC53
A2MC54
AZMC55
A2MC56
A2MC57
42Mt63
A
2MC
64
A2MC65
A2Ql
A2Q2
A2Q3
A2Q4
A2Q5
AZRL
A2RZ
A2R3
A2R4
A2R5
A2R6
A2R7
part
HP
No
4 040-
0
74d
14'30-0116
0180-01 16
ld20-0@70
1820-0054
1820-0054
182 O-OU54
1
8 2
0-
007
1820-0328
ld20-0068
1820-0054
1820-0069
1820-0069
1820-0068
1820-0054
18 20-0054
1820-0054
1d20-0069
1820-0328
1820-0070
1820-0054
1820-0054
1820-0054
1820-0328
1
d20-0054
1820-0328
1820-0054
1820-0068
1820-0068
1820-0328
1820-0C68
1820-0077
1820-0077
1820-0077
1820-0054
1820-0077
1820-0054
1820-0054
1820-0068
1820-0054
1820-0054
18 54-001
1854-0015
18
54-0053
18
54-
001
18 54-001 9
0
75 7-0 2
H
757-02
75 7-0280
75 7-0280
75 7- 02
80
80
0
0
0757-0280
0
0757-0280
0
9
9
0
7
TO
6
15
4
42
20
26
14
9
67
4
Description Mf
ED
EXTRACTOR PC
PIN GROOVE #TQ 2#
C
FXD 6.8UF
IC
8-1lP kAND GATt
IC
QUAU 2-I/P NAND GATE
IC
QUAD 2-I/P NANO GATE
IC
QUAD 2-I/P NAND GAT€
IC
DUAL U-TYPE FLIP-FLUP
IC
QUAD 2-I/P NUR G4TE
IC
TRIPLE 3-I/P NAND GATE
IC
QUAD 2-1/P NAND GAlE
IC
DUAL 4-I/P NAND GATE
IC
DUAL 4-1IP NAND GATE
IC
TKIPLE 3-I/P NAND GATE
IC
QUAD 2-IIP NAND GATE
IC
QUAD 2-I/P NAND
IC
QUAD 2-I/P NAND GAlt
IC
DUAL 4-I/P NANO GATE
IC
QlJAD 2-I/P NOR GATE
IC
R-I/P
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
IC
XSTK
XSTK
XSTR
XSTR
XSTR
R
FXD IK DHM
K
FXD 1K
R
FXU
R
FXD 1K OHM
R
FKD
R
FXD IK
R
FXD 1K UHM
NAND GATE
QUAD 2-I/P NAkO GATE
QUAD 2-I/P NAND GATE
QUAD 2-I/P NANO GATE
QUAD 2-IIP NOR GATE
QUAD 2-I/P NAND GATE
QUAD 2-I/P NDK GATE
QUAD 2-I/P NAND GATE
TRIPLE 3-I/P NAND GATE
TRIPLt 3-I/P NAND GATE
QUAU 2-I/P
TKIPLE 3-1/P NAND GATE
DUAL D-TYPE FLIP-FLOP
DUAL D-TYPE FLIP-FLOP
DUAL D-TYPE FLIP-FLOP
4UAU 2-IIP NAND GATE
DUAL D-TYPE FLLP-FLOP
QUAU 2-I/P NAND GATE
QUAD 2-I/P NAND GATE
TRIPLE 3-I/P NAND GATE
QUAD 2-I/P NAND GATE
QUAD 2-I/P NAND GATE
SI
NPN
SI
NPN
SI
NPN
SI
NPN
SI
NPN
OHM
in
aiM
1K
OHM
OHM
BLK
10%
35WVDC
LVUH
1%
118W
1%
1/8d
ig i/8u
1%
1/8H
1X 1/8W
1%
1/8W
1X
1/8W
GATt
GAT€
r
28480 5040-5111
73957 GP24-063x250-12
56289 150Db85X903582-DYS
€0001
EOOOl SN4342
€0001
EOOO~
EOOOl SN4354
E0001 SN4667
€0001 SN4343
€0001
€0001 SN4344
EOOOl SN4344
€0001
EO001 SN4342
EOOOl SN4342
€0001 944342
EO001 SN4344
€0001 SN4467
EO001 SN4345
€0001 SN4342
E0001 SN4342
€0001 SN4342
€0001
EO001 SN4342
EO001 SN4467
€0001
EOOOl SN4343
EOOOl SN4343
€0001 SN4467
ED001 SN4343
EO001 SN4354
€0001 SN4354
€0001 SN4354
EOOOl SN434.2
EOOOl SN4354
E0001 SN4342
€0001
EOOOl SN4343
EOOOl SN4342
€0001
13715 5-6516
13715 5-6516
04713 2N2218
13715
13715 5-6516
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
Mfr Part
SN4345
SN4342
~~4342
SN4342
SN4343
SN4467
SN4342
SN4342
SN4342
5-6516
No
Abbreviations are listed in the introduction to this section
3.8
WWW.HPARCHIVE.COM
Table
3-1
Replaceable Parts (continued)
Ref Desig
A228
A2K9
A2RlO
AZKl1
A2RlL
A2R 13
A2K14
A2R15
A2K 16
A2R17
A3
A3C1
f
A3MCll
A3MC12
A3MC13
A3MC14
A3MC15
A3MC 16
A3MC17
A3MC21
A3MC22
A3MC23
A3MC24
A3MC25
A
3YC 26
A3MC31
A
3YC 32
A3NC33
A3MC 34
A3MC35
A3MC36
A3MC41
A3MC 42
A3MC43
A3MC44
A3MC45
A3MC46
A3MC51
A3MC52
A3MC53
A3MC54
A3MC55
A3MC56
~3ai
A392
A303
A304
A3Q5
Part
"'
No
0757-0280
0
75 7- 0280
0
75 7- 02
80
0
75 7-0280
075 7-04 16
0
75 7-04
190-0116
0-00
0-09
A
2
0- 00
20-0054
0-00
8
54-00
5 4-0053
54-0053
16
84
72
70
72
1
Y
0757-0408
0757-0280
0757-04 16
0757-0416
03720-30003
4040-0751
4040-0748
1480-01 16
o
182
182 0-00 84
1820-0054
1820-0069
1820-0054
1820-0069
1820-0068
1820-0054
1820-0084
1820-0084
1820-0084
1820-0084
182
1820-0077
1
18
1820-0069
1820-0085
1820-0328
182
1820-0077
1820-0077
1820-0077
1820-0077
1820-0077
1820-0328
1820-00 72
1920-0072
1820-0328
1820-0085
1820-0328
1854-0019
I
1854-0053
18
18
TQ
17
22
K
FXU
R FXD
R FXU
K
FXO 1K
K FXD
R FXO 511 OHM
R
2
1
2
7
2
FXD 200
R
FXU IK UHM
R FXD 511
K
FXO 511 OHM
RANGE LOGIC ASSY
PC
BO
EXTRACTOR
EXTRACTOR PC BD 8LK
PIN GROOVE
C
FXD 6.8UF
IC
4-WII)E 2-I/P AND/INV +XR GATE
IC
4-HIDE 2-I/P ANU/INV +XR GATE
IC
QUAD 2-IIP luAND GATE
IC
UUAL 4-1/P NAN0 GATE
IC
QUAD 2-I/P NAND (,ATE
IC
DUAL 4-I/? NAFIU GATE
IC
TRIPLE 3-I/P NAND GATE
IC
QUAD 2-I/P NAND GATE
IC
4-wIDF 2-I/P AND/INV +XR GATE
IC
4-hIOE 2-1/P ANDlINV +XR GATE
IC
4-hIDE 2-I/P
IC
4-WIDE 2-1/P AND/INV +XR GATE
IC
UUAL 2-dIDE 2-I/P AND/INV +XK GATE
IC
DUAL D-TYPE FLIP-FLOP
IC
R-I/P NANO GATE
IC
QUAD 2-I/P NANO GATE
IC
DUAL 4-IlP NAND GATE
IC
DUAL 4-I/P XR GATE
IC
QUAD 2-I/P NGR GITE
IC
DUAL 2-WIDE 2-I/P ANDIINV +XR GATE
IC
OUAL D-TYPE FLIP-FLOP
1C
DUAL D-TYPE FLIP-FLOP
IC
DUAL 0-TYPE FLIP-FLOP
IC
DUAL 0-TYPE
IC
DUAL
IC
QUAD 2-1jP NOH GATE
IC
DUAL 2-WIOF 2-I/P AND/INV +XU GATE
IC
DUAL 2-WIDE 2-I/P ANUlINV +XK GATE
IC
QUAD 2-I/P NCJR GATE
IC
UUAL 4-1/P XR GATE
IC
QUAD 2-I/P NOK GATE
XSTR
SI
XSTR
SI
SI
XSTK
SI
XSTR
XSTK
SI
Description
1K
OHM
12;
OriM
UHH
OiiY
PC
#TU
10%
1/8h
1X
1/9W
14
1/8H
1s
ll8W
1%
l/8W
1X
1lYW
16
1/8W
1%
l/dd
1%
1/8W
If
ll8W
BD
ORh
2U
35WVDC
ANUIINV
FLIP-FLOP
1K
OHM
1K
OHY
OHM
511
BLANK #NSK#
0-TYPE FLIP-FLOP
NPN
NPN
NPN
NPN
NPN
+XR GATE
Mfr
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042
19701 MF4CT-0
19701
19701 MF4CT-0
75042 CtAT-0
19701 MF4CT-0
19701 HF4CT-0
E0007
14493 5040-5114
28480 5040-5111
73957 GP 24-063x250-
56289 15OD685X903582-DYS
EOOOl SN4349
EO001 SN4349
€0001 SN4342
€0001 SN4344
€0001 SN4342
€0001 SN4344
€0001 SN4343
€0001 SN4342
EOOOl SN4349
EOOOl SN4349
EO001
€0001 SN4349
€0001
E0001
EOOOl SN4345
€0001 SN4342
€0001
EOOOl SN4351
€0001 SN4467
E0001
€0001 SN4354
EO001 SN4354
€0001 SN4354
EO001 SN4354
EO001
€0001 SN4467
€0001 SN4347
€0001
EO001
€0001
E0001
13715 5-6516
13715 5-6516
04713 2N2218
04713 2N2218
04713 2N2218
CEAT-0
YF4CT-0
SN4349
SN4347
SN4354
SN4344
SN4347
SN4354
SN4347
SN4467
SN4351
SN4467
Mfr Part
12
No
I
WWW.HPARCHIVE.COM
Abbreviations are listed in the introduction
to
this section
3-9
A3Rl
A3RL
A3R3
A3R4
A3R5
A3R6
A3R7
A3R8
A3R9
AM10
AiR11
A3RlL
A3Q13
A3R14
AJRl5
A3K16
A3R17
A3R18
A3K19
A3R20
A3H21
A3R22
A3R23
A4
1
A4C
A4C2
A4C3
A4C4
A4CY
A4C6
A4C7
A4C8
A4C9
A4C 10
A4CR
1
A4MC 12
A4MC 13
A4MC 14
A4MC 15
A4MC 16
A4MC17
A4MC22
A4MC23
A4MC24
A4MC 25
A4MC26
A4MC27
A4MC32
A4MC33
0757-0180
0757-0280
0
75 7-0280
0757-0280
0
75 7-02
0
75 7-02
0757-0408
0757-0280
0
757-0280
0757-0280
0757-0280
0
75 7-0280
0
75 7- 04
075 7-04 16
0737-0416
0757-0280
075 7-02
0757-0280
0757-0280
0.75 7-0280
0757-0416
0
75
7-
02
03720-30004
4040-0732
4040-0748
1480-0
1
0160-01 56
0
140-0200
0140-0 197
0150-0093
0140-0200
0140-0197
0150-0093
0180-0229
0
180- 1746
0180-1746
1902- 3036
18
20-
00
1820-051
Id 20-00 54
1820-0075
1820-0261
1820-0075
‘
1820-0075
1820-0068
1820-0054
1820-0075
1620-03 71
1820-007
1820-0261
1820-0261
80
80
16
80
80
16
?
5
I
1
1
2
1
4
3
3
2
4
3
14
4
8
1
0
Table
3-1
Replaceable Parts (continued)
R
FXD
K
OHM
R
FXD
R
FXD
R
FXD
R
FXD
H
FXD
1K
R
FXD 200
K
FXD 1K
R
FXD
1K
R
FXD
1K
R
FXD
1K
R
FXD
1K
K
FXD 511
H
FXD 511
R
FXD 511 OHM
NUT ASSfGNED
R
FXD
1K
R
FXD 1K
R
FXD
1K
K
FXD 1K OHM
K
FXD
1K OHM
R
FXL)
511
R
FXD
1K
STORE
1
PC
BD
BLANK #NSRt
EXTRACrOR PC BD YEL
EXTRACTOR PC BD BLK
PIN GROOVE
C
FXD 3900PF
C
FXD 390PF 53 3OOWVDC
C
FXD l8OPF 5% 300WVDC
C
FXD 0.OIUF
C
FXD 390PF 5% 300WVDC
C
FXO l8OPF 5% 3OOWVDC
C
FXD
0.OlUF +80-10% IOOUVDL
C
FXO 33UF
C
FXD 15UF
C
FXD 15UF
OIO
BKDN
IC
DUAL JK FLIP-FLOP
IC
QUAD 2-I/P AND GATE
IC
WAD
IC
DUAL
IC
MONOSTABLE
IC
DUAL JK FLIP-FLOP
IC
DUAL
IC
TRIPLE 3-I/P NAND GATE
IC
WAD 2-I/P NAND GATE
IC
’DUAL
IC
HS
TRIPLE 3-1/P NAND GATE
IC
DUAL 4-I/P NAND 6UFFER GATE
IC
MONIJSTABLt
IC
MONOSTAHLt
1%
K
OHM
1%
K
UH+i
1%
K
OHM
14
K
OHM
1%
OHM
1%
1/64
OHM
1%
UHM
1%
OHM
#T4
1%
1%
1%
1%
1Y
It;
1L
18
ld
1%
1%
1%
1%
1%
2#
10%
1/8W
1/84
1/8W
1/8W
1/8U
1/8W
1/8W
2OOUVOC
OHM
OHM
OHM
OHM
OHH
OHM
OHM
OHM
OHM
OHM
ASSY
+80-101
10%
IOWVDC
10%
ZOWVDC
10%
ZOWVDC
3.16~ 51 400~11
2-I/P NANO GATE
JK
FLIP-FLOP
JK
FLIP-FLOP
JK
FLIP-FLOP
1/8W
i/en
IOOWVOC
75042 CkAT-0
75042 CEAT-0
75042-CEAT-0
75042
CEAT-0
75042
CEAT-0
75042 CEAT-0
19701 Mf4CT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0,
75042 CEAT-0
1970
1
MF 4CT-0
19701
MFQCT-0
19701 MF4CT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
75042 CEAT-0
MF~CT-O
19701
75042 CEAT-0
E0007
14493 5040- 51
28480 5040-5111
73957 GP24-063x250-12
56289 192P39292-PTS
72136 RDM15F391J3C
72136 RDM15F181J3C
9 1418
72136 RDM15F391J3C
72136 RDMl5F181J3C
91418
56289 15OD336X901062-DYS
56289 150DlS6X902062-DYS
56289 150D156X902082-DYS
04713
EOOOl St44353
€0001 SN20572
EOOOl SN4342
EOOOl
SN4353
€0001 SN74121N
EO001 SN4353
EOOOl SN4353
€0001
SN4343
€0001 SN4342
EOOOl SN4353
EOOOl SN4479
EO001 SN4346
EOOOl
SN74121N
€0001
SN74121N
15
3-10
Abbreviations are listed in the introduction to this section
WWW.HPARCHIVE.COM
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