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HEWLETT
PACKARD
FORMATION FROM HEWLETT-PACKARD
January-February 1986
ns - .-
- r:-
`." P
7
Fred C . Harper,
HP Product Support Division HEWLETT
PACKARD
Does your facility require instrument calibrations that
conform to MIL-STD-45662,with all of the recordkeeping
that 45662 requires? If so, Hewlett Packard Customer HP MILITARY STANDARD CALIBRATION SERVICE
Service Centers in the US.can now help you out.
All of HP's US. Customer Service Centers can now
perform calibrations in FULL compliance with
MIL-STD-45662. This is full compliance, not just "intent
and purpose." When appropriate, we are prepared to
be audited for assurance of that compliance.
Full compliance with 45662 includes the following
.
items:
Formal calibration procedures with recording of test
. results before and after any necessary adjustments.
Records of calibration dates and names of responsible
. individuals.
Records of accuracy of test standard's accuracy and
. controlled environmental conditions.
System of notification and recalibration when test
standards are found to be out-of-tolerance.
Hewlett Packard has invested substantial amounts of
money and effort into creating and supporting the
data management system for 45662 compliance. This
system permits HP to track calibrations performed on
customer's and HP's own equipment. Thus, if any of
HP's equipment is later found to have been outiof-
tolerance, HP will notify you and perform any necessary
re-calibration for free.
In summary, HP is confident of its ability to meet
your MIL-STD-45662 audit requirements. Your Spe ific Solution for
For more information, contact your local HP repre- ~ M l L - S l ' 45662
D
sentative and ask for the Military Standard Calibration
Service flyer, HP P/N 5954-2804. Or, contact your
nearest HP Customer Service Center. The Service
Centers can also provide you with price lists of Military
Standard services.
The US.Customer Service Centers are located in:
Mountain View, CA (415) 960-5251 Paramus, NJ (201) 265-5000
Fullerton, CA (714) 758-5490 Atlanta, GA (404) 955-1500
Englewood, CO (303) 649-5524 Richardson, TX (214)231-6101
Rolling Meadows, IL (312) 255-9800 c
Pub. NO. 5952-0123 0Hewlett-Packard 1986
WWW.HPARCHIVE.COM
quarter wave section of transmission b. Trap antennas eliminate the need
A Short line. The formula for determining for a ground system.
Troubleshooting the required characteristic impedance
is Z = 0 - where ZI is the
c. Trap antennas do not usually
?
Quiz antenna impedance and ZO is the
r e q u i r e a coupler for efficient
operation.
characteristic impedance of the line
A qualified radio technician must to which it is to be matched. d. Trap antennas are subject to
have a deep reservoir of knowledge detuning by nearby metal objects.
True-False
to be able to troubleshoot the varied
transceiver equipment in use today. 9. After installing an SSB trans-
6. When planning an SSB instal-
How deep is your reservoir? Here is mitter, you notice that the transmitter
lation with a remote antenna coupler,
a selection of questions that will test output is less than normal on voice
which of the following statements is
a radio technician's mettle. peaks. Back at the shop, transmitter
of the most importance?
output is normal. The most likely
1. VHF transceivers are range lim- a. A short, low-impedance ground cause of this problem is:
ited to essentially line-of-sight. should be connected to the radio
a. Faulty bird wattmeter
chassis.
True-False b. High input voltage
b. A short, low-impedance ground
2. Although crystals can be obtained should be connected to the coupler. c. Excessive lead length supplying
to operate at frequencies up to input power
c. The coaxial cable connecting the
30 MHz, a dual conversion mixing radio to the coupler must be grounded d. Over-modulation
scheme is generally used in VHF at regular intervals.
transceivers for better frequency sta- 10. Which of the following state-
bility as well as better selectivity. d. The DC power cable to the coupler
ments is false r e g a r d i n g SSB
must be run parallel to the RF coaxial
True-False installation?
cable.
a. IR drop is of no particular
3. In frequency modulation trans-
7 Which of the following statements
. importance.
ceivers, the ratio between frequency
deviation, in Hertz, and the modu-
is true?
b. Wire size is an important factor
for input power.
1
lating frequency, also in Hertz, is a. The lead-in wire from a short
called the MODULATION INDEX whip antenna can be of any length
c. Antenna feed line should be short
and is analogous to percentage of if it is properly insulated.
and direct.
modulation in amplitude modulation. b. Performance will not be degraded
d. Antenna feed line (GTO type)
True-False when the lead-in wire is bundled
should be well insulated from metal
with other cables provided a good
objects.
4. One major advantage in FM over grade of GTO wire is used.
AM modulation is that interference c. Coaxial cable can be used as How well do you think you did? The
resulting from rectification of the lead-in wire for short whip antennas answers are located on the back
t r a n s m i t t e d signal is virtually if the braid is grounded at both ends. page. And while on the subject did
eliminated. you know t h a t Hewlett-Packard
d. For best results, the short whip
True-False manufactures a product line of trans-
antenna lead-in wire should be sep-
ceiver test equipment that performs
arated from all surrounding objects
5. In impedance matching an an- many automated tests for the tech-
by at least three inches.
tenna to a transmission line, one nician? Call your local HP ofice and
method of matching makes use of ask for more information on the
8. Which of the following statements
the quarter wave transformer of " Q HP 8955A RF Test System. 0
is not true?
section, which is actually a one
a. Trap antennas are meant to work
only in a narrow band of frequencies.
2 BENCH BRIEFS JANUARY-FEBRUARY 1986
WWW.HPARCHIVE.COM
I 8f'-L.
_n
Using Fiber Optics to Transmit a \
Frequency Standard-More Information
Brett Frymire,
HP Opto-Communications Diu.
The article I wrote for the JuneIAugust We have produced another Tech Brief Optic Components. This publication
1985 issue of Bench Briefs has been (No. 104) titled Baseband Video is available from Hewlett-Packard
updated with some new and corrected Transmission with Low Cost Fiber as HP publication 5954-1025. 0
information, including prices for the
Table 1. Tkansmitter/Receiver Parts List
parts list.
Ransmitter Parts
I would like to recommend that when Ref. Approx. Ref. Approx.
constructing the circuits for the Desig. JDEC# HP# Price Desig. JDEC# HP# Price
hctive Active
transmitter and receiver, you use a oarts parts
ground-plane type of circuit board U1 LH0002 1820-0224 $10.00 U1 LM733 1826-0064 $ 1.15
due to the high frequencies involved. U2 LM741 1826-0271 35 U2 LF351 1826-0667 .75
I would also recommend that, in a Ql 2N2905 1853-0314 .75 Q1 2N4416 1855-0276 1.76
CR1-3 FD777 1901-0179 .35 Q2 2N5179 1854-0345 .47
high noise environment, you place CR4 HFBR-1402 HFBR-1402 29.00 CRl 1N4150 1901-1098 .10
the receiver in a shielded metal box. HFBR-2404 HFBR-2404 31 .OO
Passive Passive
In the receiver schematic shown in parts parts
Figure 5 on page 7 of the June/August C1-3 .lufd 0160-0576 .20 C1,3-10 .lufd 0160-0576 .20
1985 issue of Bench Briefs, pins 4 C4 4.7ufd 0180-2683 2 00 C2 lufd 0160-0127 1.oo
and 10 on U1 (LM733) were switched. R1 51 ohms 0683-5105 .05 R1 100 ohms 0683-1015 .05
R2.3 1 Kohm 0683-1025 .05 R2.3 2.2 Kohms 0683-2225 .05
Pin 10 should have been connected
R4 3.9 Kohms 0683-3925 .05 R4 22 Kohms 0683-2235 05
t o +5V and pin 4 should have been Select R5,6 1 Mohms 0683-1055 .05
connected to the source of the FET. Rm, 'q components R7 18 Kohms 0683-1835 .05
The revised drawing is shown in R8 3.3 Kohms 0683-3325 .05
R9 1 Kohms 0683-1025 .05
Figure 1. R10 10 Kohms 0683-1035 05
Fiber Optic Cable (with connectors) HFBR-3000
The new parts list with the approxi- (This has connectoring costs as well as cost of
mate parts cost is shown in Table fiber cable)
1 Please note that the prices are
. (without HFBR-3200 -1.75imetre
connectors)
for minimum quantities and are Connectors SMA 3.00-33.00
taken from a local distributor. Prices for fiber
optic cable
may fluctuate between distributors.
- +sv
Jim Prettyleaf
Figure 1. Fiber optic receiver.
JANUARY-FEBRUARY 1986 BENCH BRIEFS 3
WWW.HPARCHIVE.COM
Learn Service Skills Through In-Depth Technical Instruction
Hewlett-Packard service training courses are designed contact your local HP Sales Representative and tell
to provide in-depth technical instruction for maintenance him or her which courses you wish to attend. If you
personnel seeking the skills needed to troubleshoot, require a course on an instrument or instrument
repair, and maintain HP instruments and instrument system not listed on the calendar below, ask your
systems. Course concepts are taught through a balance Sales Representative if a special arrangement can be
of theory and practical, hands-on exercises. made. For a copy of the 1986 calendar, ask for
publication number 5953-9606. For more information,
Ordering Instrument Service Training is easy. Simply call (415) 960-5295. 0
Content Dates Location Tuition per
Student
Logic Analyzers 81 Development
Systems
HP 64000 Logic Development July 14-18 Logic Systems Division $1,000
System Colorado Springs, CO
Data Acquisition
HP 2250 Measurement & Control May 5-9 Loveland Instrument Division $1,400
System Sept. 29-Oct. 3 Loveland, CO
Automatic Test
HP 3061A/62A Circuit Test System April 14-25 Manufacturing Test Division $2,500
June 2-13 Loveland, CO
Sept. 22-Oct. 3
HP 3065H Board Test System Feb. 24-March 7 Manufacturing Test Division $3,600
May 12-23 Loveland, CO
July 7-18
Sept. 8-19
HP DTS-70 Board Test System April 28-May 2 This course is taught by
Aug. 18-22 Lexico Enterprises Inc.
Sept. 29-Oct. 3 located in Kirkland, WA
RF & Microwave
HP8566A/B, 8567A, 8568A/B July 28-Aug. 8 Signal Analysis Division $1,800
Spectrum Analyzers Rohnert Park, CA
HP 8642A/B Signal Generator Aug. 26-28 Spokane Division $675
Spokane, W A
HP 8660A/B/C Signal Generator Sept. 2-3 Spokane Division $450
Spokane, W A
HP 8640A/B Signal Generator Sept. 4-5 Spokane Division $450
Spokane, W A
HP 8656A/B Signal Generator Sept. 9-11 Spokane Division $675
Spokane, W A
HP 8901A/02A/03A/B/E Sept. 15-19 Spokane Division $1,125
Analyzer/Receiver Spokane, W A
HP 8901A/B/8902A Sept. 23-26 Spokane Division $900
Analyzer/Receiver Spokane, W A
HP 8903A/B/E Audio Analyzer Sept. 30-Oct. 1 Spokane Division $450
Spokane, W A
HP 8662A/8663A Signal Generator Oct. 7-9 Spokane Division $675
Spokane, W A
HP 86738 Signal Generator Sept. 8-12 Stanford Park Division $1,125
Palo Alto, CA
HP 3335A Frequency Synthesizer Aug. 19-22 Lake Stevens Division $1,390
Lake Stevens, W A
~~
4 BENCH BRIEFS JANUARY-FEBRUARY 1986 WWW.HPARCHIVE.COM
Safety-Related I"J power supply assembly and trans-
former T1 (HP P / N 9100-0480).
Service Notes i requires that a fixture cover with a Product Safety Service Note
.1
" safety interlock be installed (refer 3336A/B/C-16-S describes the prob-
Service notes from HP relating to to Test Fixture Assembly and Service lem in more detail.
personal safety and possible equip- Manual, HP P/N 44538-90003).
ment damage are of vital impor- H P 3497A Data Acquisition and
tance to our customers. To make you Safety Service Note 3061A/62A-14-S Control Unit
more aware of these important and 3065-38-S provides more infor-
notes, they are printed on paper mation on the recommended safety On u n i t s with s e r i a l numbers
with a red border, and the service shroud described in Appendix B of 2448A15955 and below, the inguard
note number has a "-S" suffix. In the fixture assembly manual. Im- control section and its associated
order to make you immediately proper construction may cause the sheet metal, along with the connector
aware of any potential safety prob- safety shroud to implode, possibly housing to the analog extender cable
lems, we are highlighting safety- causing injury to people nearby. This are at the same potential as the
d related service notes here with a can happen when the shroud forms guard input terminal. This potential
brief description of each problem. a sufficiently tight seal against the can be as high as 170 volts above
Also, in order to draw your atten- test fixture. chassis ground. I t is possible t o
tion to safety-related service notes contact this hazardous potential with
on the service note order form at the 3065-31-S Safety Service Note de- the safety cover in place because the
back of Bench Briefs, each appropri- scribes a procedure for insulating ventilation slot on top of the panel
ate number is highlighted by being the 220 Vac power lines to the cooling does not adequately restrict finger
printed in color. fans on the back of the HP 3065C. access.
This insulation is required to isolate
HP 182 and 1200 Series the 220 Vac lines from the 12 Vdc A modification kit (HP P/N 03497-
Oscilloscopes air flow sensing lines. 67915) is available free-of-chargefrom
Hewlett-Packard to replace the old
Correction!! The previous issue of HP 3325A Synthesizer/Function rear cover on the HP 3497A. Product
7 Bench Briefs listed a service kit for
repairing the oscilloscope strap han-
Generator Safety Service Note 3497A-23A-S
contains complete instructions.
dles. The HP P/N for this kit was On generators with serial numbers
incorrectly listed. The correct part below 2512A19654, the use of an H P 3498A Extender
number is 00182-69505 and can be improper slow-blow fuse may cause
ordered from: permanent damage to the power The HP 3498A Extender with serial
supply assembly and transformer T1 numbers 2223A04650 and below has
HEWLETT-PACKARD CO. (HP P/N 9100-4099). Product Safety the same problem as the HP 3497A
P.O. Box 2197 Service Note 3325A-19-S describes described above. In addition, when
Colorado Springs, CO 80901 the problem in more detail. connecting multiple analog extender
Attn. Product Assurance Mgr. cables to the rear panel of the 3498,
HP 3336A/B/C Level Generator there is not sufficient clearance for
3060A Board Test System,
the rear safety cover to be installed
3061A/3062A Board Test
On HP 3336A generators with serials properly.
Systems, 3065A Board Test
2513A01253 and below, 3336B gen-
System
erators with serials 2514A02483 and A modification kit (HP P/N 03498-
below, and 3336C generators with 67915) is available free-of-chargefrom
These four HP Board Test Systems
serials 2515A01057 and below, the Hewlett-Packard to replace the old
I may have a potential safety hazard
use of an improper slow-blow fuse rear cover on the HP 3498A. Product
4
in which more than 42 volts could
may cause permanent damage to the Safety Service Note 3498A-3A-S con-
be supplied to the printed circuit
* tains complete instructions. 0
board under test.
JANUARY-FEBRUARY 1986 BENCH BRIEFS 5
WWW.HPARCHIVE.COM
HP 3336A/B/C LEVEL GENERATOR HP 3762A DATA GENERATOR
3336AiBIC-16S. 3336A serials 2513A01253 and below; 3762A-8. Serials 21421100661 to 2513U01166 inclusive.
33368 serials 2514A02483 and below: 3336C serials Modification to eliminate high incidence of fuse
2515A01057 and below. Burned power supplies failure on PSU capacitor board.
linked to primary fuse.
HP 3763A ERROR DETECTOR
HP 3421A DATA ACQUISITION/CONTROL 3763A-78. Serials 2150U00800 and below. Preferred
UNIT replacement for A141C27 (1820-1755), A141C26
3421A-28. All serials. HP 44462A multiplexerlactuator (1820-2040) and 03763-60114 (timer assembly).
jumper configuration. 3763A-12. Serials 2150U00641 to 2508U01114
inclusive. Modification to eliminate high incidence
HP 3456A DIGITAL VOLTMETER of fuse failure on line input assembly.
GENERAL 3456A-1D. All serials. Customer service kit (03456-
69801) for board level repair. HP 3764A DIGITAL TRANSMISSION
5083-15. Serials 2101A and below. New model kit
3456A-6A. All serials. Line frequency options on the ANALYZER
(5061-2972) to install CRTs with improved face
A30 inguard logic PC board. 3764A-118. All serials. Tape cassette retrofit kit.
plate grounding.
3456A-16A. Serials 2201A and below. A3 PC board 3764A-12. Serials 2419U00580 and below. Option 010
HP 141T DISPLAY assembly compatibility. tape cassette firmware revision.
3764A-13. Serials 2519U00827 and below. Modification
5083-15. Serials 2101A and below. New model kit HP 3497A DATA ACQUISITION/CONTROL to prevent possible interface problems between
(5061-2972) to install CRTs with improved face UNIT HP 3764A and HP 37204A HP-I8 extender.
plate grounding.
3497A-15A. Recornmended input relay replacements
for voltmeter option. HP 3770B TELEPHONE LINE ANALYZER
HP 346A/B/C NOISE SOURCE 37708-31. All serials. Preferred replacement for check
3497A-21. Serials 2514 and above; serials 2448 and
346A-1. All serials. Recommended current regulator below. System II cabinets inchlmetric conversion. 8 marker pushbutton switches.
board replacement for HP 346A and HP 3468. 3497A-23A-S. Serials 2448A15955 and below. Possible
3468-5. All serials. Recommended attenuator shock hazard. HP 3776A/8 PCM TERMINAL TEST SET
replacement for HP 3468 and 3460.
3776A-23. All serials. 3776 test programs data cartridge
HP 3498A EXTENDER (HP P/N 03776-10001) modifications-update to
HP 1220A/1221A/1222A OSCILLOSCOPES
3498A-3A-S. Serials 2223A04650 and below. Possible REV D.
1220A-27. All serials. Modification to prevent potential 3776A-24. All serials. Inappropriate selection of "through
shock hazard.
handle breakage. PCM" causes errors 31/32 to be displayed while
1222A-7. All serials. Modification to prevent potential
HP 3561A DYNAMIC SIGNAL ANALYZER running a measurement.
handle breakage. 37768-1 88. Serial numbers below 2437U00642.
3561A-8. Serials 2338A01928 and below. New power
switch withstands greater surge current. Frequency update instructions for data measurement
HP 1630G LOGIC ANALYZER option 001.
1630G-5A. Serials 2415A00280 and below and serials 3776524. All serials. 3776 test programs data cartridge
HP 3577A NETWORK ANALYZER
241 5A00286, 241 5A00287, 241 5A00289. (HP P/N 03776-10001) modifications-update to
Recommended 1630G PROM replacementtocorrect 3577A-4. Serials 2333Al0908 and below. Masked
ROMS replace EPROMS. REV D.
firmware. 3776525. All serials. Inappropriate selection of "through
3577A-5. Serials 2333A11392 and below. New 5 volt
PCM" causes errors 31/32 to be displayed while
c
HP 1631A/D LOGIC ANALYZER connector.
3577A-6. Serials 2333A10250 to 233A10600. running a measurement.
1631A/D-2. 1631A serials 2525A and below; 1631D
Modification to eliminate HP-I8 lockup problem.
serials 2518A and below. Recommended PROM HP 3779A/B/C/D PRIMARY MULTIPLEX
3577A-7. Serials 2333A10150 and below. Modification
replacement to correct firmware. ANALYZER
to prevent 10 MHz VCO unlock problem.
3779A-42. All serials. Instructions for retrofitting the
HP 3054A AUTOMATIC DATA HP 3779C/D A17 assembly to the HP 3779A.
ACQUISITION/CONTROL SYSTEM HP 3582A SPECTRUM ANALYZER
3582A-13. All serials with prefix 1809A and 2508A06494 3779A-43. All serials. Instructions for retrofitting the
3054A-2. All serials. Modifications to allow verification HP 3779C/D A18 assembly to the HP 3779A.
to 2508A06610. Wiring of triac A19Q1 to A1 9 power
of the FET multiplexer assembly. 3779A-45. All serials. Instructions for retrofitting the
supply motherboard may be reversed.
HP 3779C/D A22 assembly to the HP 3779A.
HP 3060A/61A/62A AND 3065 BOARD TEST HP 37028 IF188 RECEIVER 3779A-47. All serials. Recommendation that neither
SYSTEMS HP 82905A/B or 82906AlB printers be used along
3702550. All serials. Preferred replacement for A25Q2.
306OA-64. All serials. Field modifications to change with any model of the 3779.
3702551, All serials. Preferred replacement for A1CR1.
the power option on the HP 341960 power module. 3779A-54. Serials 00215 and below. Recommended
306112A-0. Service note index. modification to improve power supply reliability.
3061A/3062A-13. All serials. Field modifications to
HP 3708A NOISE AND INTERFERENCE
37798-45. All serials. Instructions for retrofitting the
change the power option on the HP 34196C power
TEST SET
HP 3779C/D A I 7 assembly to the HP 37798.
module. 3708A-2. Serials 2414U00150 and below. Preferred 3779546. All serials. Instructions for retrofitting the
3061Al62A-14-S. All serials. Notification of potential replacement for RFI strip on assembly A403. HP 3779C/D A18 assembly to the HP 37798.
safety hazard. 3708A-3. Serials 2414U00179 a n d below. 3779548. All serials. Instructions for retrofitting the
3065-0. Service note index. Recommended component changes to enhance the HP 3779C/D A22 assembly to the HP 37798.
3065-27. All serials. HP model 44633H service kit. stability and adjustment of the 140 MHz oscillator. 37798-49. All serials. Instructions for retrofitting the
306531-5. Serials 2308A00372 and below. Notification 3708A-4. All serials. HP 3708A noise bandwidth HP 3779C/D A35 assembly to the HP 37798.
of potential safety hazard. calibration tape. 37798-50. All serials. Recommendation that neither
3065-32. Serials 2316A00509 and below. Wiring HP 82905A/B or 82906AlB printers be used along
corrections for HP 112538 with power options 220 HP 3739A OSCILLATOR with any model of the HP 3779.
or 240. 3739A-4. Serials 1849U00206 and below. Preferred 37790-24. Serials between 2447U00459 and
3065-38-S. All serials. Notification of potential safety replacement for the YIG oscillator. 2447U00508. Modification to prevent display
hazard. inaccuracy d u r i n g A-A o u t b a n d s p u r i o u s
HP 3746A SLMS measurement.
HP 3325A SYNTHESIZER/FUNCTION 3746A-28. All serials. 10 MHz precision frequency 37796-25. All serials. Interface problems with EPSON
GENERATOR reference assembly (option 014) retrofit kit. printers and the PMA.
3325A-18. Serials 1748A13350 and below. 3746A-5A. All serials. Retrofit procedure for OPT 01 1 3779D-27. Serials 00439 to 00514. Modification to the
Microprocessor bias voltage selection related to group filter. A26 assembly to prevent possible corruption of
intermittent resets. 3746A-16. Serials 2410U00692 and below. Modification NVM data.
3325A-194. Serials 2512A19654 and below. Burned to input transistor (A2Q1) to prevent failures. 3779D-28. Serials 2446U00439 and 2447U00514.
power supplies linked to primary fuse. Modification to prevent display inaccuracy during
HP 3747AI8 SLMS A-A outband spurious measurement.
HP 3326A TWO-CHANNEL SYNTHESIZER 3747A/B-258. Serials 2143U00136 and below. 3779D-29. All serials. Interface problems with EPSON
3326A-2. Serials 2437A00450 and below. Defective Thermopile protection retrofit kit for the A31 5 printers and the PMA.
line voltage selector. broadband power detector. 3779D-31. Serials 00243 and below. Modification to
3326A-3. Serials 2437A00460 and below. Metal tab eliminate failure code 5-223 on digital self-test 4.
on HP3326A rear panel shorts capacitor.
6 BENCH BRIEFS JANUARY-FEBRUARY 1986
WWW.HPARCHIVE.COM
HP 3780A PATTERN GENERATOWERROR HP 4953A PROTOCOL ANALYZER HP 8559A SPECTRUM ANALYZER
DETECTOR 4953A-68. Serials 2522A00626 and below. Preferred 8559A-28. Serials 2347A04500 and below. Video filter
3780A-18B. Serials 18041100523 and below. Retrofit replacement EPROMS. potentiometer replacement.
kit to incorporate equaliser and attenuator in existing 4953A-7. Serials 2528A and below. Announcement of
option 100. revision 4.0 firmware update. HP 8662N8663A SYNTHESIZED SIGNAL
3780A-31. Serials 2224U02486 to 2224U03100 and 4953A-8. All serials. Recommended replacement GENERATORS
2449U03101 to 2449U03165. Preferred I C cooling fan. 8662A-12A. Serials 2424A and below. Modification to
replacement to prevent failures of A37 systematic improve low frequency loop performance and
error detector and A38 error counterlcontrol logic HP 4955 PROTOCOL ANALYZER eliminate intermittent status errors 03/04.
board. 4955A-1B. Firmware upgrade to revision 1.2 operating 8663A-6A. Serials 2419A and below. Modification to
system. improve low frequency loop performance and
HP 3781AlB PAlTERN GENERATOR eliminate intermittent status errors 03/04.
, 3781A-4. All serials. Preferred replacement for A39 HP 5180A WAVEFORM RECORDER
assembly. 518OA-16. Serials 2426A00941 and below. Modification HP 8673C/D SYNTHESIZED SIGNAL
3781 B-8. All serials. Preferred replacement for A39 to fix DMA problems with "auto stop" and chop GENERATOR
assembly. mode data records. 86730-3. Serials 2512A and below. Recommended
37818-9. Serials 251211 and below. Preferred 5180A-20A. Serials 2448A01010 and below. downconverter firmware update kit.
replacement of cooling fan. Modification to improve histogram test results. 8673D-3. Serials 2512A and below. Recommended
downconverter firmware update kit.
HP 3782AlB ERROR DETECTOR HP 5342A MICROWAVE FREQUENCY
3782A-6. All serials. Preferred replacement for A39 COUNTER HP 8864A INSTRUMENTATION TAPE
assembly. 5342A-26A. All serials. Installation of amplitude RECORDER
37828-9. All serials. Preferred replacement for A39 measurement option 002 retrofit kit part number 3964A-6A/8864A-6A/3968A-7A/8868A-7A.Serials 1702A
assembly. 05342-60200. and earlier. Improved power switch.
37828-10. Serials 251211 and below. Preferred 5342A-28A. All serials. Installation to Digital-to-Analog
replacement of cooling fan. Conversion (DAC) option 004 retrofit kit part number HP 8868A INSTRUMENTATION TAPE
05342-60202. RECORDER
HP 3964A INSTRUMENTATION TAPE 3964A-6A/8864A-6A/3968A-7A/8868A-7A. Serials 1702A
RECORDER HP 5345A ELECTRONIC COUNTER and earlier. Improved power switch.
3964A-6A/8864A-6A/3968A-7A/8868A-7A. Serials 1702A 5345A-37. Serials 2040A and below. Recommended
and earlier. Improved power switch. replacement of A9U8, U10, U11, U13, U14, U l 5 o n HP 10308B/C 6809/6809E INTERFACE
0534560009 gate control assembly. MODULE
HP 3968A INSTRUMENTATION TAPE 10308B/C-l. Interface board assemblies with HP P/N
RECORDER HP 5384AI85A FREQUENCY COUNTER 64671-66501. Modification to correct invalid status
3964A-6A/8864A-6A/3968A-7A/8868A-7A. Serials 1702A 5384A/85A-2. All serials. HP-IB verification program and erratic J clocking.
and earlier. Improved power switch. using the HP 85A controller.
HP 10312B/C 80286 INTERFACE MODULE
HP 40628 SEMICONDUCTOR PARAMETRIC HP 6002A POWER SUPPLY 10312BiC-1. Serials 24XXAOOXXX. Modification to
TEST SYSTEM 6002A-3. Serials 2204A05926 to 2348A08275. prevent excessive noise on the user cable.
4062AW40628-1. 4062A all serials: 40628 serials Modification to improve reliability.
2519JOO155 and below. Recommended replacement 6002A-4. Serials 2520A09725 or below. Recommended HP 35677AlB TEST SET
of VFP timer board. power transistor and capacitor replacement. 35677-2. 35677A serials 2331 A00868 and below:
/7 HP 4935A TRANSMISSION IMPAIRMENT
TEST SET
HP 6030A/6031A/6032A/6033A/
6034A/6038A/L POWER SUPPLIES
356778 serials 2332A00300 and below. Short screws
on the directional bridges.
4935A-12A. Serials 2436A and below. Modification to 6030A-1. All serials. Modification to prevent self test HP 37201A HP-IB EXTENDER WITH
prevent fuse blowing. error code 13 failure. OPTION 050
4935A-13. Improved carrying handle. 6031A-3. All serials. Modification to prevent self test 37201A-6. Modification to U329 voltage supply to
error code 13 failure. improve reliability.
HP 4937A TRANSMISSION IMPAIRMENT 6032A-2. All serials. Modification to prevent self test 37201A-7. All serials. Additional test steps for the
TEST SET error code 13 failure. HP-IB test program.
4937A-2. Serials 2523A and below. Servicing the 6033A-3. All serials. Modification to prevent self test
retrofitted instruments. error code 13 failure. HP 37203A HP-IB EXTENDER
4937A-3. Improved carrying handle. 6034A-8. 6034A serials 2420A02404 to 2420A02984: 37203A-8. All serials. Repair of fiber optic cables
4937A-4. Serials 2545A and below. Announcement of 6034L serials 2423A00946 to 2423A01304. Front
revision 3.0 software. panel replacement parts. HP 64100A DEVELOPMENT STATION
6038A/L-1. All serials. Modification to prevent self test 64100A-13A. All serials. Washing with harsh soaps or
HP 4951A PROTOCOL ANALYZER error code 13 failure. solvents will cause the water base paint to be
4951A-1B. Serials 2426A and below. Installation of removed.
applications RAM. HP 6942A MULTIPROGRAMMER
4951A-3A. Serials 2426A01325 and below. Improved 6942A-12/6943A-5. Serials 2513A05650 to HP 64110A DEVELOPMENT STATION
keyboard cable. 2513A05898. Explanation of power interrupt fault at 64110A-5A. All serials. Washing with harsh soaps or
4951A-5A. Serials 2443A and below. Modification to supply voltage extremes. solvents will cause the water base paint to be
correct tape board servo error.
removed.
4951A-6A. Serials 2426A and below (applicable only HP 6943A MULTIPROGRAMMER
to Intercon, Europe, and Canadian units). Instructions EXTENDER HP 6422A 80186 EMULATOR POD
on rewiring the power switch. 6942A-12/6943A-5. Serials 2516A00871 to
4951A-7A. Serials 2443A02576 and below. Instructions 84224A-2. 80186 emulation pod repair number prefixs
251 6A00930. Explanation of power interrupt fault at 2445A. 2448A, 2503A; serials 00331 through 00520
on installing the SCC retrofit kit. supply voltage extremes.
4951A-8C. Serials 2443A2722 and below. Improved (inclusive). Modificationto correct ALE circuit change.
carrying handle. HP 8170A LOGIC PAlTERN GENERATOR
4951A-10B. Serials 2443A and below. Summary of HP 64501A PROM PROGRAMMER
8170A-6. Serials 2521G01475 and below. RAM board 64501A-3. Serials 2410A. Modification to the +5V
software revision 1.0 to 3.1. 08170-66502 and 08170-66503 replacement.
4951A-11A. Serials 2508A to 2508A03900 and all REF circuit so it will not issue a programming pulse.
HP 4951's that have been updated to Software HP 8447A/C/D/E/F RF AMPLIFIER
Rev. 2.0. Announcement of Software Revision 3.1. HP 69709A POWER SUPPLY CONTROL
-'
8447A-4. All serials. Prevention of amplifier damage CARD
4951 A-1 2A. Serials 2508A03891 a n d below.
due to electrostatic discharge. 69709A-1. All serials. Controlling power supplies with
Modification to increase current drive for tape drive
motor. a multiprogrammer power supply control card.
4951A-14A. Serials 2528A and below. Modification to
HP 8483A POWER SENSOR
prevent read amplifier errors. 8483A-2. All serials. Calibration procedures with HP 85685A PRESELECTOR
4951A-15A. Tape drive assembly modification. HP 435A/B, 436A and 438A power meters. 85685A-1. All serials. Spectrum analyzer compatibility.
4951A-16. All HP 4951As shipped between 1 July 84
and 1 July 85. Recommend replacement ROMS. HP 8557A SPECTRUM ANALYZER
4951A-17. Serials 2508 and below. Announcement of 8557A-14. Serials 2229A02805 and below. Video filter
software update 3.1. potentiometer replacement.
JAN1JARY-FEBRUARY 1986 BENCH BRIEFS 7
WWW.HPARCHIVE.COM
_ L ~ - ~ ~ ~ ~ ~
Service Note Order Form
If you want service notes, please For European customers (ONLY) Name
check the appropriate boxes below
and return this form separately to Hewlett-Packard Firm
one of the following addresses. Nederland BV Address
Central Mailing Dept.
Hewlett-Packard P.O.Box 529 - city
1820 Embarcadero Road 1180 AM Amstelveen
Palo Alto, California 94303 The Netherlands State Zip
0 346A-1 0 3497A-15A 0 3764A-13 0 3781A-4 0 4951A-16 0 8557A-14
0 346B-5 0 3497A-21 0 37706-31 0 37816-8 0 4951A-17 0 8559A-28
122049-27 0 3497A-23A-S 0 3776A-23 0 37818-9 0 4953A-6B 0 8662A-12A
0 1222A-7 0 3498A-3A-S 0 3776A-24 0 3782A-6 0 4953A-7 0 8663A-6A
0 1630G-5A 0 3561A-8 0 3776B-18B 0 37826-9 0 4953A-8 0 867303
0 1631A/D-2 0 3577A-4 0 37768-24 0 37828-10 0 4955A-1B 0 8673D-3
0 3054A-2 0 3577A-5 0 37766-25 0 3964A-6A/8864A-6A/ 0 5083-15 10308B/C1
0 306OA-64 0 3577A-6 0 3779A-42 0 3968A-7A/8868A-7A 0 5180A-16 0 10312B/Gl
0 3061/2A-0 0 3577A-7 0 3779A-43 4062A-6/40628-1 0 5180A-20A 0 35677-2
0 3061A/3062A-13 0 3582A-13 0 3779A-45 0 4935A-12A 0 5342A-26A 0 37201A-6
0 3061A/62A-14-S 0 37026-50 0 3779A-47 0 4935A-13 0 5342A-28A 0 37201A-7
0 30650 0 3702B-51 0 3779A-54 0 4937A-2 0 5345A-37 37203A-8
0 3065A-27 0 3708A-2 0 37798-45 0 4937A-3 0 5384A/85A-2 0 64100A-13A
0 3065-31-S 0 3708A-3 0 37798-46 0 4937A-4 0 6002A-3 0 64110A-5A
0 306532 0 3708A-4 0 37798-48 0 4951A-16 0 6002A-4 0 64224A-2
0 3065-38-5 0 3739A-4 0 3779549 4951A-3A 0 6030A-1 ]
c 64501A-3
0 3325A-18 0 3746A-26 0 3779B-50 0 4951A-5A 0 6031A-3 0 69709A-1
0 3325A-19-S 0 3746A-5A 0 3779024 0 4951A-6A 0 6032A-2 0 85685A-1
3326A-2
0 3326A-3
0 3746A-16
0 3747A/B-256
3779025
0 3779D-27
0 4951A-7A
0 4951A-8C
0 6033A-3
0 6034A-8
r'
0 3336AlBlC-16-S 3762A-8 0 3779D-28 0 4951A-106 0 6038A/L-1
0 3421A-2B 3763A-7B 0 3779D-29 0 4951A-llA 0 6942A-12/6943A-5
0 3456A-1D 0 3763A-12 0 3779D-31 0 4951A-12A 0 817OA-6
0 3456A-6A 0 3764A-116 0 3780A-186 0 4951A-14A 0 8447A-4
0 3456A-16A 0 3764A-12 0 3780A-31 0 4951A-15A 0 8483A-2
Please photocopy this order form if you do not
want to cut oft the page.
,+
ANSWERS 1-T; 2-T; 3-T; 4-T; CT; 60; 7-D; & E SC; 10-A
p;da Postes
Canada
Pos1.p. peld Post Paye
Mtssissauga, Ontario L4V 1M8 L
Bulk Ennombre
BENCH BRIEFS third troiskhe
class classe
JANUARY-FEBRUARY 1986 732
Volume 26 Number 1 REXDALE
Service information from
Hewlett-Packard Company
To obtain a qualification form for a free
subscription, send your request to the
above address.
Reader comments or technical article
contributions are welcomed.
Please send them to the
Bench Briefs Editor.
Editor: Jim Bechtold
Hewlett-Packard
r
All rights reserved Permission to reprint Bench Briefs granted upon written request to the Editor Printed in U.S.A.
BENCH BRIEFS JANUARY-FEBRUARY 1986
WWW.HPARCHIVE.COM
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