HP 1332A Service manual

OPERATING AND SERVICE MANUAL
X-Y DISPLAY
MODEL 133249
(Including Options: 007, 011, 039, 100, 101,
105, 106, 110, 120, 121, 200, 201, 205, 206, 210,
211, 215, 216, 300, 301, 302, 303, 304, 305, 310,
315, 322, 323, 324, 325, 326, 330, 550, 561, 562,
570, 580, 611, 631, 639, and 910.)
SERIAL NUMBERS
This manual applies directly to instruments with serial
numbers prefixed
1616A.
With changes described in Section VII, this manual also
applies to instruments with serial numbers prefixed
1414A through l615A.
PRINTED: JULY 1976
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CERTIFICATION
The Hewlett-Packard Company certifies that this instrument ~oas
thoroughl?~tested nnd inspected ancl found to meet its published
specifications when it lclas shipped from the factor?/.The Hewlett-
Packarcl Company further certifies that its calibration measzlre-
ments are traceable to the U.S. National Bureazt ofStandards to
the extent allolcled b?j tlze Bzireau's calibration facility.
WARRANTY AND ASSISTANCE
This Hewlett-Packard product is warranted against defects
in materials and workmanship. This warranty applies for
oneyear from the date of delivery,or, in the case of certain
major components listed in the operating manual, for the
specified period. We will repair or replace productswhich
prove to be defective during the warranty period provided
they are returned to Hewlett-Packard. No other warranty
is expressedorimplied. We are not liablefor consequential
damages.
Service contracts or customer assistance agreements are
available for Hewlett-Packard products that require main-
tenance and repair on-site.
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Model 1332A
TABLE OF CONTENTS
Table of Contents
Section Page
..............
I GENERAL INFORMATION 1-1
1.1
. Introduction ...................... 1-1
.....................
1.5 . Specifications 1-1
..............
1.8 . Accessories Supplied 1-1
............. 1.10 . Accessories Available 1-1
1.12
. Options ........................... 1-1
1.14 . Instrument and Manual
Identification
................... 1-1
I1 INSTALLATION ......................... 2-1
2.1
. Introduction ...................... 2-1
2.3
. Initial Inspection ................. 2-1
2.5
. Power Requirements .............. 2-1
2.8
. Power Cords and Receptacles ..... 2-1
2.10
. System Applications ............ 2-1
2-1
1 . Repacking for Shipment .......... 2-1
Section Page
................ Z-axis Rise Time 5-9
Linearity
....................... 5-9
...................... Geometry 5-10
....... .
CMRR Option 106 Only 5-10
TTL Blanking .
............. Option 216 Only 5-12
..................... Adjustments 5-13
..... Low-voltagePower Supply 5-13
High-voltagePower Supply
.................. Adjustment 5-13
... Focus Centering Adjustment 5-14
.... Intensity Limit Adjustment 5-14
Trace Alignment and
................ Orthogonality 5-14
Z-axis High Frequency
.................. Adjustment 5-14
..... X and Y Gain Adjustments 5-15
X- and Y-axis High Frequency
Adjustment
.................. 5-15
I11 OPERATION ............................. 3-1 VI REPLACEABLE PARTS
................. 6-1
3.1
. Introduction ...................... 3-1
3.3
. Controls and Connectors .......... 3-1
3.5
. Instrument Modifications ......... 3-1
3.7
. Preoperational Procedure .......... 3-1
6.1
. Introduction ...................... 6-1
............. . 6.3 Ordering Information 6-1
IV PRINCIPLES OFOPERATION
........... 4-1 VII MANUAL CHANGES .................... 7-1
4.1
. Introduction ......................
................ 4.3 . Circuit Discussion
4.4
. Low-voltage Power Supply
(LVPS) .......................
4.9 . High-voltage Power Supply
(HVPS)
.......................
4.13 . Deflection Amplifiers ...........
4.17 . Z-axisAmplifier ................
V PERFORMANCE CHECK AND
ADJUSTMENTS
.......................
Introduction ......................
Recommended Test Equipment ....
Performance Check Record ........
Performance Checks ..............
Deflection Amplifier Rise Time ..
Deflection Factor ...............
Diagonal Settling Time .........
Deflection Polarity ..............
Position Control ................
Input Resistance ................
Input Capacitance ..............
Deflection Amplifier
Dynamic Range
...............
....................... Crosstalk
Z-axis Polarity and Gain
........
7.1 . Introduction ...................... 7-1
.................. . 7.3 Manual Changes 7-1
.......... . 7.5 Manual Changes Listing 7-1
VIII SCHEMATICS AND TROUBLE-
SHOOTING
............................ 8-1
...................... Introduction
Schematics
.......................
Component Locations .............
Preventive Maintenance ..........
.......... Mechanical Inspection
........................ Cleaning
.......... Repair and Replacement
CRT Removal and Installation
..
Semiconductor Removal and
.................. Replacement
Circuit Boards
....................
Board Connections ..............
Servicing Etched Circuit Boards .
Heat Sinks ......................
Troubleshooting ..................
Troubleshooting the Low-
voltage Power Supply
.......
Troubleshooting the High-
voltage Power Supply
.........
DC Voltages ....................
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List of Illustrations
List of Tables
LlST OFILLUSTRATIONS
Model 1332A
Figure Title Page Figure Title Page
...........
.
1.1 . Model 1332A X-Y Display .............. 1-0 6.1 Illustrated Parts Breakdown 6-3
Power Receptacles
..................... 2-1 8.1
.
Controls and Connectors ............... 3-2 8.2
.
Rise Time Test Setup ................... 5-3 8.3 .
Deflection Factor Test Setup ........... 5-4 8.4 .
..... Diagonal Settling Time Test Setup 5-5
Deflection Amplifier Dynamic 8.5
.
Range Test Setup .................... 5-7
Z-axis Polarity and Gain Setup
......... 5-8 8.6 .
Monitor Oscilloscope Presentation ...... 5-8 8.7 .
Z-axis Rise Time Setup ................. 5-9 8.8 .
Linearity Test Setup .................. 5-10
Linearity Presentation
................ 5-1 1 8.10 .
..................... CMRR Test Setup 5-12 8.11 .
?TL Blanking Test Setup ............. 5-12 8.12 .
X- and Y-axis Test Setup (Number 1) ..
5-16
X- and Y-axis Test Setup (Number 2)
..
5-17 8.13
.
Adjustment Location .................. 5-17 8.14 .
LlST OFTABLES
Table Title Page
1.1
. Specifications .......................... 1-2
1.2
. General Information ................... 1-2
1.3
. Model 1332A Options .................. 1-4
5.1
. Recommended Test Equipment ......... 5-2
5.2
. Rise Time Specification ................ 5-3
5.3
. Input Resistance ....................... 5-6
............ 5.4 . Low-voltage Power Supply 5-13
Semiconductor Terminal
Identification
........................ 8-3
Assembly and Chassis Parts Locator
... 8-4
Overall Block Diagram
................. 8-5
A2 Y-axis Amplifier Component
Locator
.............................. 8-6
A5 Control Board Component
Locator
.............................. 8-6
Y-axisAmplifier
....................... 8-7
Y-axis Amplifier
....................... 8-9
A1 Main Board Component Locator
(front) .............................. 8-10
Z-axis Amplifier
...................... 8-11
Low-voltagePower Supply
............ 8-13
A3 High-voltagePower Supply
Component Locator
................. 8-14
........... High-voltagePower Supply 8-15
DC Voltage Distribution
.............. 8-16
Table Title Page
6.1 . Abbreviations for Replaceable
Parts List ............................ 6-1
6.2
. Replaceable Parts ...................... 6-5
6.3 . Replaceable Parts for Available Kits .. 6-12
6.4
. List of Manufacturers' Codes .......... 6-16
. ....................... 7.1 Manual Changes 7-1
8.1
. Schematic Notes ....................... 8-3
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SAFETY SUMMARY
The following general safety precautions must be observed during ailphases of operation, service,
and repair of this instrument. Failure to comply with these precautions or with specific warnings
elsewhere
in this manual violates safety standards of design, manufacture, and intendeduse of the
instrument. Hewiett-Packard Company assumes no liability for the customer's failure to comply
with these requirements.
GROUND THE INSTRUMENT.
To minimize shock hazard, the instrument chassis and cabinet must be connected to an electrical
ground. The instrument is equipped with a three-conductor ac power cable. The power cable
must either be plugged into an approved three-contact electrical outlet or used with a three-contact
to two-contact adapter with the grounding wire (green) firmly connected to an electrical ground
(safety ground) at the power outlet. The power jack and mating plug of the power cable meet
International Electrotechnical Commission (IEC) safety standards.
DO NOT OPERATE INAN EXPLOSIVE ATMOSPHERE.
Do not operate the instrument in the presence of flammable gases or fumes. Operation of any
electrical instrument in such an environment constitutes a definite safety hazard.
KEEP AWAY FROM LIVE CIRCUITS.
Operating personnel must not remove instrument covers. Component replacement and internal
adjustments must be made by qualified maintenance personnel. Do not replace components with
power cable connected. Under certain conditions, dangerous voltages may exist even with the
power cable removed. To avoid injuries, always disconnect power and discharge circuits before
touching them.
DO NOT SERVICE OR ADJUST ALONE.
Do not attempt internal service or adjustment unless another person, capable of rendering first aid
and resuscitation, is present.
USE CAUTION WHEN EXPOSING OR HANDLING THE CRT.
Breakage of the Cathode-ray Tube (CRT) causes a high-velocity scattering of glass fragments (implosion).
To prevent CRT implosion, avoid rough handling or jarring of the instrument. Handling of the CRT shall
be done only by qualified maintenance personnel using approved safety mask and gloves.
DO NOT SUBSTITUTE PARTS OR MODIFY INSTRUMENT.
Because of the danger of introducing additional hazards, do not install substitute parts or perform
any unauthorized modification to the instrument. Return the instrument to a Hewlett-Packard
Sales and Service Office for service and repair to ensure that safety features are maintained.
DANGEROUSPROCEDURE WARNINGS.
Warnings, such as the example below, precede potentially dangerous procedures throughout this
manual. Instructions contained in the warnings must be followed.
WARNING
0
Dangerous voltages, capable of causing death, are present in this instrument.
Useextreme caution when handling, testing, and adjusting.
SS-2-1 I76
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General Information Model 1332A
1332A-P-001
Figure 1-1. Model 1332A X- Y Display
Scans by ArtekMedia © 2008
ARTE
K
MEDI
A
Digitally signed
by ARTEK
MEDIA
DN: cn=ARTEK
MEDIA, c=US,
o=DC
Henderson
Date:
2008.04.25
06:21:16 -05'00'

Model 1332A GeneralInformation
SECTION I
GENERAL INFORMATION
1-2. The Hewlett-Packard Model 1332A is a cathode-
ray tube display that is capable of meeting a wide
variety of OEM medical and electronic instrument dis-
play needs. Thecathode-raytubehastheresolution and
picture quality required for medical diagnostic systems
plus an extremely bright display required for differ-
entiating between many gray shades.
1-3. This manual contains installation and operating
instructions, as well as maintenance information for
the 1332A. Instrument specifications and procedures
for verifying proper operation areincluded. Procedures
are also included for adjusting the instrument to its
performance specifications. Schematic diagrams, the
theory of operation, and troubleshooting information
are provided for use in maintaining the instrument.
1-4. This section of the manual contains the per-
formance specifications for the 1332A, and a list of
options available. It also lists the accessories supplied
with the 1332Aandother accessories thatareavailable.
Instrument and manual identification information are
also included.
1-5. SPECIFICATIONS.
1-6. Table 1-1is a complete list of the 1332A critical
specifications that are controlled by tolerances. Table
1-2 contains general information that describes
operating characteristics of the 1332A.
1-7. Any change in the specifications due to'manu-
facturing, design, or traceability to the U.S. National
Bureau of Standards will be listed on a manual change
sheet included with this manual. The manual and
manualchangesheetsupersedeallpreviousinformation
concerning specifications of the 1332A.
1-8. ACCESSORIES SUPPLIED.
1-9. The following accessories are supplied with the
1332A:
One Blue Contrast Filter, HP Part No. 01332-
02706.
One 0.375A Fuse for 220/240-Vac operation, HP
Part No. 2110-0063.
One2.3m (7.5ft)linecord,HPPartNo. 8120-1538.
1-10. ACCESSORIES AVAILABLE.
1-11. The following accessories are available for the
1332A:
Model 10380A OEM Horizontal Frame Kit.
Model 10381A Rack Mount Hardware Kit for
Model 10380A.
Model 10382A Bench Hardware Kit for Model
10380A.
Model 10383A Rack Mount Adapter.
Model 10384ARack Mount Kit forTwo Displays.
Model 10385ARack Mount Kit forTwo Displays.
Model 10386A OEM Vertical Frame.
BNC Shorting Caps,
HP Part No. 1250-0645.
Camera Model 197A Option 006.
Model 10488A Input Signal Cable.
1-13. Standard options are modifications installed on
HP instruments at the factory and are available on
request. Table 1-3lists available options for the 1332A.
For information on field-installable options, refer to
Application Note 199,"Small Screen Displays, Medical
Diagnostic System Application and Interfacing."
1-14. INSTRUMENT AND MANUAL IDENTI-
FICATION.
1-15. Instrument identification by serial number is
located on the rear panel. Hewlett-Packard uses a two-
sectionserialnumber consisting of four-digitprefix and
a five-digitsuffix separated by a letter designating the
country in which the instrument was manufactured.
(A
= U.S.A; G = West Germany; J = Japan; U = United
Kingdom.)
1-16. This manual applies to instruments with a
serial number as shown on the title page. If changes
have been made in the instrument since this manual
was printed, a "Manual Changesr' supplement sup-
plied with the manual will define these changes. Be
sure to record these changes in your manual. Back-
dating information in Section VII adapts the manual
to instrument with serial numbers lower than that
shown on title page. Part Numbers for the manual
and the microfiche copy of the manual arealso shown
on the title page.
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General Information Model 1332A
Table 1-1. Specifications
VERTICAL AND HORIZONTAL AMPLIFIERS provided that zero input position is on screen,
RISE TIME: c70 ns (10%to 90%points) for full screen without degradation.
deflection.
CROSSTALK: <0.254 mm (0.010 in.) with one input
DEFLECTION FACTOR:
terminated in 50 ohms and the other driven by
Horizontal: 100 mV/div (1 V p-p for 10-div deflec- a 1-volt p-p, 500-kHz signal. <0.381
mm (0.015 in.)
tion). Front-panel adjustment from approx 80 at 5 MHz when driven from a 50-ohm source.
mV/div to 200 mV/div. 1 div = 1.19 cm (0.47 in.).
Vertical: 100 mV/div (0.8 p-p for 8-div deflection).
Z-AXIS AMPLIFIER
Front-panel adjustment from approx 80 mV/div
RISE TIME: <25 ns (cw bandwidth: approx 5 MH~).
to 200 mV/div. 1 div = 1.19cm (0.47in.).
BLANKING RANGE: 0 to 1 V (with internal gain
SETTLING TIME: signal settles to within one spot adjustment set for maximum gain).
diameter of final value in <300ns for any large or
POLARITY: v input fully unblanks
small movement. Off screen deflection not to
exceed specified dynamic range.
CRT.
GAIN: Internally adjustable over 2.5:l attenuation
INPUT RC: 1MQ nominal shunted by <60pF. ratio.
POLARITY: positive vertical input moves beam up;
RC:
MQ nominal shunted by <60 pF.
positive horizontal input moves beam to right.
POSITION: front panel controls allow zero input to be
set off-screenin any direction from anywhere with-
CATHODE-RAY TUBE
in the viewing area. LINEARITY: <3%of full scale along major axes.
DYNAMIC RANGE: beam may be deflected off screen
GEOMETRY: <3% pincushion and barrel distortion
up to one-half screen diameter in any direction, over usable display area.
Table
1-2. General Information
VERTICAL AND HORIZONTAL AMPLIFIERS
BANDWIDTH: dc to 5 MHz (3 dB down) for 7.62-cm
(%in.)deflection.
PHASE SHIFT: <lo (dcto 1 MHz).
MAXIMUMINPUT: *50 V (dc + peak ac).
DRIFT:
Position:
c0.5 mm/hour (0.020 in./hour) and s1.02
mm (0.040 in.) in 24 hours with covers installed.
Galn: 4.0%under all combinations of specified line
voltage and temperature from +20°Cto +55OC with
covers installed after 15-minute
warmup.
Z-AXIS AMPLIFIER
MAXIMUM INPUT: *50 V (dc + peak ac).
LIGHT OUTPUT STABILITY: measurements made at
one hour intervals will not vary by >lo%,for any
location within usable display area, under all
specified conditions of line voltage and tempera-
ture.
CATHODE-RAY TUBE
TYPE: post-deflection accelerator, approx 22 kV
acceleration potential, aluminized P31 phosphor
standard (see options for additional phosphor
selection), electrostatic focus and deflection.
VIEWING AREA: 114 sq cm (17.67 sq in.) approx
9.6 cm vertically by 11.9cm horizontally (3.8in.by
4.7 in.).
QUALITY AREA: center 9 divisions horizontally and
center 7 divisions vertically.
GRATICULE: 8 x 10 divisions. Internal graticule is
standard (1 div
= 1.2cm [0.47 in. ] ).
SPOT SIZE: c0.030 cm (0.012in.) atcenter screen and
varying by not more than 10%over entire quality
area with intensity held constant. Measured using
shrinkingraster method.
LINE RESOLUTION: approx 31.5 lines/cm (80 lines/
in.).
LINE BRIGHTNESS: ,170 cd/m2 (50 fl) at a writing
speed of 0.254 cm/ps (0.1 in./ps), 60 Hz refresh
rate, P31 phosphor, 0.3 mm (0.012in.) spot size.
UNIFORMITY: light output of spots located anywhere
in the quality area will not vary by more than 40%.
CONTRASTRATIO: 4:1 or greater measured by photo-
metrically summing the trace brightness and back-
ground, then dividing by the background bright-
ness.
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Model 1332A
Table 1-2. General Information (Cont'd)
General Information
SAFETY PROTECTION NOTE
IMPLOSION:
protective safety panel between CRT
and bezel protects viewer. Instruments with
UL 544 labeled options
HIGH VOLTAGE SHOCK: anode lead is permanently (for medical and dental equipment)oper-
bonded to CRT.
ate from 48 to 66 Hz only.
X-RAY EMISSION: less than 0.05 milliroentgen/
hour. Not measureable with Victoreen Model 440
RF/C in background noise. DIMENSIONS: see outline drawing.
DESIGN AND MANUFACTURE: standard instrument WEIGHT: net, 8.6 kg (19 lb) with cover and feet;
is designed and manufactured to meet Under- shipping,
10.5 kg (23lb).
writers Laboratories safety standards. See options
for UL labeled instruments.
ENVIRONMENT
GENERAL TEMPERATURE: O°C to +55OC operating; -40°C to
X-, Y-, AND 2-INPUT CONNECTORS: BNC type +70°C non-operating.
mounted on rear panel (shield grounded).
HUMIDITY: 95% relative humidity to 40°C.
FRONT PANEL CONTROLSWITH KNOBS: position X, ALTITUDE: 4600 m (15 000 ft)non-operating, 6300 m
position
Y, focus, andintensity. (25 000 ft)non-operating.
FRONTPANELSCREWDRIVER ADJUSTMENTS: trace
SHOCK: 30 G level with 11 ms duration and 1/2 sine
align, astigmatism,gain
X, gain Y. ' wave shape.
POWER: nominal line voltage settable to 100, 120, VIBRATION: vibrated in three planes for 15 minutes
220, and 240 Vac; +5%-10% 48 Hz to 440 Hz 50 each with 0.254 mm (0.010 in.) excursion 10 to
VA maximum (approx
40 W).
55 Hz.
L
(8-318)
1 NOTE
1. Dimensionsare for general
I
information only. If di-
mensionsare required for
buildingspecial enclosures,
contact your
HP Field
Engineer.
I
2. Dimensionsare inmillimetres
and (inches).
n
b- 487 (19-3116)
524 (20-518)
146
(5-314)
000
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