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SERVICE INFORMATION FROM HEWLET-PAChAnu ~ n I n
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5335A Universal Frequency Counter
Anomalies and Workarounds
Mara DuMond
HP Santa Clara Division
Service Note 5335A-21 documents
the HP 5335A firmware Revision 1.1
programming anomalies and worka-
rounds. You may find this informa-
tion useful if you are experiencing
programming difficulties with the the HP 9000 Series 200 controllers, All anomalies and/or workarounds
5335A. The following is a summary a r e presented i n t h e following do not affect the credibility of any
of the service note. If you would like categories: measurements made by the 5335A.
a copy of this service note, please 5335A Data Output Format
write to the address on the last page
Major Subjects
of Bench Briefs.
b Totalize A Function References: Which documents i t
supports.
Introduction Pulse B Function Firmware Revision Identification:
Is your counter the one?
The purpose of this service note is to Gate Modes Anomalies and Workarounds: In
facilitate successful programming of each case listed above, there is an
the 5335A by informing the user of Single Cycle Mode explanation of the anomaly and the
the programming anomalies and their suggested workaround. In many cases
workarounds for the 5335A firmware SRQ -Service Request there is an example program listing
Revision 1.1. The anomalies and their in BASIC for the HP 9000 Series 200
workarounds, which were verified for Status Byte/Serial Polling controller. 0
Change is 1.5 ppm. Some experiments are pres-
ently underway and a decision on
on a non-electrical field, please com-
municate it to Bill Bruce at the
Contemplated in what the actual changes will be is Loveland I n s t r u m e n t Division
due late in 1988. The changes would Standards Lab. Bill is on an NBS
U.S. Unit of Voltage then become effectiveJanuary 1,1990. sponsored government-industry com-
mittee that will formulate recom-
While this change will be insignifi- mendations for dealing with the
Bill Bruce cant to the majority of users of HP changes.
HP Loveland Division instruments, it will affect the calibra-
tion of some HP products, which can Send inputs to:
In an effort to more closely align the be dealt with. Some of our customers
f U.S. legal unit of voltage with the SI
(international system of units), NBS
in non-electrical disciplines, however,
may not be aware of the impact it
Bill Bruce
LID Standards Lab
is contemplating an approximately 9 will have on their operations. Hewlett-Packard Company
ppm change in our unit of voltage. PO. Box 301
The ohm will also be adjusted about If you know of or learn of an impact Loveland, CO 80539 0
Pub. N O . 5952-0127 @ Hewlett-Packard 1987
WWW.HPARCHIVE.COM
CoaxialIWaveguide catalog are devoted t o microwave
measurement techniques and refer-
address on the rear page of this issue
of Bench Briefs.
Measurement ence information, summarizing com-
/1
mon scalar techniques of attenuation
Accessories and SWR, as well as other measure-
Catalog Now ments in component and system test
such as power, frequency, noise figure,
Ava ilabIe spectrum, waveform, carrier noise
and modulation analysis. Waveguide
The latest edition of H P s Coaxial and Coax band designations and
and Waveguide Measurement Acces- flange data are included in the ref-
sories Catalog is now available with erence section, along with 9 pages of
product and applications information associated equipment descriptions.
. on more than 400 products operating
from dc to 110 GHz. Seventeen product This catalog will prove useful for
sections include attenuators, detec- design engineers, production test per-
tors, couplers, filters, power sensors, sonnel, quality assurance and me-
scalar analyzer accessories, noise fig- trology engineers, field-test and
ure equipment and even 75 ohm system-maintenance engineers. It is
accessories. available without charge (publication
number 5954-6401) from the HP lit-
More than 27 pages of this 112 page erature distribution center at the
Leave the computer on for the entire can jam between the disc and disc
Life Support for day, even if it will be used only head, which reads and stores data,
Your Home briefly a few times. There are two thus leading to misreads. Dust has
Computer
reasons for this; the first is the disc
drive. Each time you power the unit
the same vandalistic propensities, so
use a dust cover when the equipment
1
on and off, the heads go through isn't on.
their homing or position-seeking rou-
Mainframe computers are swaddled
tines, resulting in a certain amount Power surges, static electricity and
in specialized computer rooms where
of mechanical wear. The fewer times brownouts are also gremlins that can
heat, humidity, smoke, dust, and
you cycle the power, the less wear. disrupt your equipment. We recom-
static electricity are eliminated or
The second reason is that continually mend that you contact local user
controlled. Excess heat can lead to
heating up and cooling down circuits groups to learn of particular area
microprocessor burnout, smoke and
can widen undetected hairline frac- idiosyncrasies, such as extremely low
dust to garbled data, and low humid-
tures in chips, leading to the kinds of humidity resulting in high static
ity and static electricity to loss of
glitches that disappear at the repair electricity. Place an antistatic mat
memory. Personal computers are prey
shop but reappear when you're in the on the floor to eliminate static elec-
to the same ills, but few people would
middle of creating text or program tricity, which can cause gaps in your
buy $3,000 machines if they had to
code. Computers are designed to use data.
hermetically seal the family garage
little electricity, so power bills from
as a computer sanctum. Fortunately,
all-day operation aren't high. A good What if you live in an area where
PCs don't have to be treated that
reason for keeping a brand-new com- power surges are common? To guard
tenderly. Still, elementary caution is
puter on: most electronic parts, if against too much electricity, which
due.
they are going to fail, will do so can burn the system's insides, buy a
within the first ten hours of operation, surge suppressor, which can cost $50
Put the computer system away from to $100. These devices absorb most
well within the typical 90 days cov-
open windows, heat vents, radiators, power surges that come from utilities
ered by the warranty. When you
and air conditioners. This helps re- or electrical storms. During severe
leave your computer on, lower the
duce dust, smoke, and other airborne lightning storms, however, surges
intensity of the monitor so as not to
particles as well as control variations a r e so powerful they can burst
burn an image onto the screen.
in temperature and humidity. A good
rule of thumb: if the room is uncom-
Don't smoke, eat, or drink around
through telephone lines and electrical
cords even when a computer system
3
fortable for humans, it will probably
the computer system. Smoke is espe- is turned off.
also discomfort computers.
cially insidious because tobacco tar
2 BENCH BRIEFS JANUARY-MARCH 1987
WWW.HPARCHIVE.COM
I
You may live in an area where power constant power generator, which lifts speakers, tape recorders, or other
drops, or brownouts are common. Or the power flow to an acceptable level devices with motors or magnets next
your house may be wired such that for 15 minutes. Since these devices to the computer.
f i another appliance, such as a food cost several hundred dollars, you
processor, when turned on, causes a might consider making copies of all If all fails, and the computer system
mini-brownout. Of course these your valuable data; always a good does break down, document precisely
brownouts, however caused, will wipe habit for any unforeseen event. what happened. It will help the re-
out data stored in memory. There are pairman figure out what went wrong
I two ways to guard against data loss Since magnetism can distort or erase and may reduce the likelihood that
from brownouts. The first is to buy a data, don't put telephones, stereo the gremlin will return. 0
Hardware Service Training, Investing in Self-Support
Wei Huang way than an active preventive main- 20 instrument service classes avail-
HP Customer Training tenance program. The ability to detect able to self-support customers. Class-
minor flaws before they result in a room computer service instruction is
Businesses across the country are major breakdown, as well as the provided at Mtn. View, CA; Dallas,
currently reassessing their financial speed in which the equipment is TX; Rockville, MD; and all instru-
and production strategies in view of repaired, are crucial to any business ment classes are delivered at the
the impending tax revision, which and production-intensive environ- respective product division.
will curtail the long cherished invest- ment. Time is money.
ment tax credit. And one of their For detailed information on classes
primary concerns is how to extend Hewlett-Packard Customer Service that provide good, solid service infor-
the useful life of existing equipment Training has the right program to mation and techniques on CPUs,
r with moderate resources.
To keep a computer or instrument
assist HP hardware owners who de-
sire self-support and preventive
maintenance. Currently, there are 21
discs, printers, PCs, and instruments,
please contact Customer Service
Training at (415) 691-5300/5295, or
running efficiently in or beyond its computer hardware classes, 57 self- (800) 523-0696 (in the Continental
expected life-cycle, there is no better paced computer learning packages, U.S.), or (800) 882-9595 (within
22 self-paced mentored courses, and California). 0
1987 CUSTOMER SERVICE TRAINING CALENDAR
Learn Service Skills Through In-Depth Technical Instruction
1
Hewlett-Packard service training Ordering Instrument Service Train- of the 1987 calendar, ask for publica-
courses are designed to provide in- ing is easy. Simply contact your local tion number 5953-9606. For more
1 depth technical instruction for main- HP Sales Representative and tell information, call (415) 691-5300/
tenance personnel seeking the skills him or her which courses you wish 5295. 0
needed to troubleshoot, repair, and to attend. If you require a course on
maintain HP instruments and in- an instrument or instrument system
strument systems. Course concepts not listed on the calendar below, ask
are taught through a balance of the- your Sales Representative if a special
ory and practical, hands-on exercises. arrangement can be made. For a copy
r
JANUARY-MARCH 1987 BENCH BRIEFS 3
WWW.HPARCHIVE.COM
Tuition
Content Dates Location per Student
Data Acquisition
HP 2250 Maintenance #25599A Apr 20-24 Loveland Instrument Division $1400
Sep 21-24 Loveland, Colorado
Automatic Test
HP 3061Al62A Board Test Systems OCt 20-28 Manufacturing Test Division $2500
Loveland, Colorado
HP 3065H Board Test Systems Apr 27-May 6 Manufacturing Test Division $3600
Loveland, Colorado
HP DTS-70 Board Test Systems JuI 27-31 Lexico Enterprise $1495
#IV-F NOV16-20 10517 NE, 38th Place
Kirkland, WA 98033
(206) 828-0555
Advanced DTS-70 Board Test May 18-22 Lexico Enterprise $1495
Systems Sep 28-0ct 2 10517 NE, 38th Place
Kirkland, WA 98033
(206) 828-0555
HP ATSIIOOO System Oct 5-9 Advanced Manufacturing $3100
Systems
Organization
Cupertino, CA
Signal Generation
HP 8642A #B400 OCt 13-15 Spokane Division $ 675
Spokane, WA
HP 8640AlB #B438 Sep 24-25 Spokane Division $ 450
Spokane, WA
HP 8656AlB #B477 Sep 21-23 Spokane Division $ 675
Spokane, WA
HP 8901A/02A/03A/B/E #B475/440 Oct 5-9 Spokane Division $1 125
Spokane, WA
HP 8901AlB8902A #B475 Sep 14-17 Spokane Division $ 900
Spokane, WA
HP 8903AlBlE #B440 Sep 10-11 Spokane Division $ 450
Spokane, WA
HP 8662N8663A #B501 Sep 29-0ct 1 Spokane Division $ 675
Spokane, WA
here with a brief description of each These outlets have 120V between
Safety-Related problem. Also, in order to draw your neutral and ground, and if an instru-
Service Notes attention to safety-related service ment designed with neutral and
ground shorted together is plugged
notes on the service note order form
a t the back of Bench Briefs, each into one of these outlets, the instru-
appropriate number is highlighted ment could draw 40 amps before the
Service notes from HP relating to
by being printed in color. PDU circuit breaker opens. This
personal safety and possible equip-
problem still exists even if the 2A
ment damage are of vital importance
HP 3065HX and HL Board fuse in the PDU is removed.
to our customers. To make you more
aware of these important notes, they Test Systems
Hewlett-Packard has developed a so-
are printed on paper with a red
lution for this problem. Please contact
border, and the service note number
has a "-S' suffix. In order to make
A safety problem exists i n H P
3065HL systems with serials below your nearest HP office and order 7
you immediately aware of any poten- 2541A00145. The problem involves Product Safety Service Note 3065-
tial safety problems, we are high- the two service outlets labeled "For 4 4 3 for more information.
lighting safety-related service notes Field Service Only" (5211 and 5212).
4 BENCH BRIEFS JANUARY-MARCH 1987
WWW.HPARCHIVE.COM
HP 3497A Data Acquisition manual reads, "To extend relay life cause ac voltages to be applied to the
and Control Unit or apply voltage greater than 170V printed circuit board assemblies. In
peak, a voltage divider can be in- addition, if this problem is not re-
Product Safety Service Note 3497A- stalled in the space provided for the solved, circuit and equipment damage
23B-S is a replacement service note filter." Under n o circumstances may occur.
for 3497A-23A-S1 described in the should more than 170V peak be
January-February 1986 issue of input between any two terminals For a complete description of the
Bench Briefs. of the HP 44705A. problem and instructions on how to
fix it, please order the service note
If more than 170V peak is input to with the order form on the last page
HP 3498A Extender the HP 44705A, damage to the mod- of this issue of Bench Briefs.
ule or injury to the user is possible.
Product Safety Service Note 3498A-
3B-S is a replacement service note
HP 8770A Arbitrary
Please order this service note for Waveform Synthesizer
for 3498A-3A-S, described in the Jan- more information.
uary-February 1986 issue of Bench
Briefs. A potential short circuit in the line
HP 4951C Protocol Analyzer module can occur in HP 8770As with
serial numbers 2626A00254 and be-
HP 3852A Data Acquisition Product Safety Service 4951C-2-S low. If this short circuit occurs, dam-
and Control Unit describes a possible shock hazard age to the instrument can result. For
that may exist on instruments with more information please order Prod-
Product Safety Service Note 3852A- serial numbers 2631A00101 thru uct Safety Service Note 8770A-9-S
1A-S clarifies a user manual state- 2631A00243. Improper dressing of with the order form on the last page
ment of maximum input voltage. The primary ac wires inside the unit may of this issue of Bench Briefs. 0
time charge. There is also a microfiche HP 3065 BOARD TEST SYSTEM
subscription service available that HP 3065-EA. Preventive maintenance for fixture re-
ceiver mechanisms.
automatically updates the library on 3065-44-5. Serials (HP 3065HL) 2541A002145 and
a quarterly schedule. below. Notification of potential safety hazard.
HP 3235A/E SWITCH/TEST UNIT
The part numbers for the service 3235AIE-1. Serials 2628A00214 and below. Replace-
note microfiche library and subscrip- ment ROM improves FTEST function.
tion service are:
HP 3335A SYNTHESlZERlLEVEL
GENERATOR
Need Any Service Library-
Subscription service-
5951-651 1
5951-6517
HP 3335A-12. Serials 2516A03880 and below. Possible
missing insulators on pass transistor assembly.
Notes?
Contact your local HP Sales Ofice HP 3421A DATA ACQUISITION AND
CONTROL UNIT
They're free! for ordering information. 0 3421A-0. HP 3421A service note index.
3421A-7. Serials 2338A03052 and below. Motherboard
ROM update.
Here's the latest listing of service 3421A-12. Serials 2338A02074 and below. HP-IB
notes. They recommend modifications HP 436A POWER METER microprocessor on-board ROM update to improve
436A-5A. All serials. Option 022 Retrofit instructions. performance.
to Hewlett-Packard instruments to 3421A-15. Warranty date codes 09-2623 to 09-2644.
increase reliability, improve perform- HP 816A COAXIAL SLOlTED LINE Notification of possible defective terminal blocks
816A-1. All serials. Recommended new RF connector on the HP 44462A eight channel multiplexer1two
ance, or extend their usefulness. contact to improve return loss. channel actuator assembly.
Use the form at the rear of Bench HP 2250 DATA ACQUISITION AND
CONTROL UNIT HP 3455A DIGITAL VOLTMETER.
Briefs to order, free of charge, service 2250-29. ERC: 2520 and below. Modificationto improve 3455A-20E. All serials. HP P/N 03455-69801 on-site
HP 25501 autoranging applications. service kit.
notes for several instruments.
HP 3056DL DATA LOGGER SYSTEM HP 3457A MULTIMETER
If you would like to purchase large 3056DL-1. Revision A System Software vs. Revision 3457A-5. Warranty date codes 09-2623 through 09-
6 System Software. 2644. Notification of possible defective terminal
quantities of service notes covering 3056DL-2. All serials. Instructions on using revision 6 connectors.
a wide range of instruments, or if software on an HP-85A, and a description of the 3457A-6. New reed relays in the 44492A Reed Relay
HP-85 10 ROM error.
1
you desire a complete history of all Multiplexer to improve performance.
service notes documenting all changes HP 3061162 BOARD TEST SYSTEM
HP 3061A13062A-17. Replacement procedure for the HP 3465A MULTIMETER
to your instruments, Hewlett-Packard cam bar and handle of the scanner receiver mech- 3465A-8. Serials 1606A00900 and below. Recom-
offers a microfiche library for a one anism in HP 3061162 Board Test systems. mended replacement for A1 CR7 rectifier.
JANUARY-MARCH 1987 BENCH BRIEFS 5
WWW.HPARCHIVE.COM
HP 3488A SWITCH/CONTROL UNIT HP 3776AlB PCM TERMINAL TEST SET 3852A-1A-S. Clarification of maximum input voltage.
3488A-9. All serials. Correction of CHAN CLOSED 3776A-29. All serials Opt. 001 units. Preferred re- 3852A-2. Service manual April 1986 printing and
line test on the 44474A digital 110 module. placement of analog MUX U64 on A5 assembly earlier. Error in front Dane1 kevboard diagnostic test
program.
Supersedes 3488A-8 dated 8/86.
3488A-10. Warranty date codes 09-2623 through 09-
2644. Notification of possible defective terminal
connectors.
with new part 1826-1617.
3776A-30. All serials. Preferred replacement of bit
slice processor U306, U406, U506 and U606 on
assembly 03776-60001 with new part 1820-4699.
3852X-1. Serials 2534A00349 and below having firm-
ware revision 1.O. Modification to prevent lock-up
or missing a reading when taking multiple readings
J
37768-228. Serials 2437U00742 and below. Modifi- per trigger with HP 44701A.
HP 3497A DATA ACQUISITION AND cation to improve measurement accuracies in 3852X-2. Serials 2434A00349 and below having firm-
CONTROL UNIT Timeslot 24. ware revision 1.O. The correct way to redimension
3497A-238-55. Serials 2448A15955 and below. Possible 37768-30A. Serials 2437U00642 and below. Firmware variables.
shock hazard near the inguard control section. update to correct echo return loss measurement. 3852X-3. Serials 2551A00455 and below having firm-
3497A-25. Serials 2605A19100 and below. Obsoles- 37768-32. Serials 2637U01202 to 261 6U01152. Pre- ware 1.1 and below. Proper way to prevent erroneous
cence of front panel printed circuit board. ferred replacement of PROM (HP PIN 03776-80111). reference temperature when scanning multiple TC
3497A-26. Serials 2629A19541 and below. New power 37768-33. Serials 261 6U01152 and below. Preferred multiplexers.
supply deck. replacement of PROM (HP P/N 03776-80103). 3852X-4. Serials 2602AOOxxx and below having firm-
3497A-27. Serial numbers: 03497 66521 board rev. 8 37768-34. All serials Opt. 001 units. Preferred re- ware rev. 1.2 and below. Front panel display must
and below. Recommended replacement counter placement of analog MUX U64 on A5 assembly be on when using ALRM. ON ALRM commands to
ROMS (HP P/N 1818-1615). with new part 1826-1617. generate interrupts.
3497A-28. Serials 2629A19541 to 2629A19867. Mod- 37768-35. All serials. Preferred replacement of bit 3852X-5. Serials 2602A02091 and below. Errors re-
ification to correct inoperative or intermittent RS- slice processor U306, U406. U506 & U606 on solved and enhancements made in firmware
232 transmissions. assembly 03776-60101 with new part 1820-4699. revision 2.2.
HP 3498A EXTENDER HP 3779AIB/CID PRIMARY MULTIPLEX HP 4935A TRANSMISSION IMPAIRMENT
3498A-38-5. Serials 2223A04650 and below. Possible ANALYZER MEASURING SET
shock hazard near the inguard control section. 4935A-128. Serials 2413A thru 2436A. Modification
3779A-138. All serials. Preferred replacement for relays
3498A-4A. Serials 2026A00415 and below. Old trans- to prevent fuse blowing.
AlK1-K6; A8K1; A9Kl-K5, K7, K9, K10; A31K1;
former no longer available; replace with HP kit P/N A37Kl-K4.
03497-6791 6. 3779A-328. All serials. List of HP 3779CID assemblies
HP 4936A TRANSMISSION IMPAIRMENT
that are direct replacements in HP 3779A models.
MEASURING SET
HP 3552A TRANSMISSION TEST SET 3779A-57. All serials. Conversion of standard 3779A 4936A-5A. Serials 2326U01636 and below. Recom-
3552A-10. All serials. Preferred replacement for tran- to 3779A opt. 001, opt. 002 or opt. 003. mended replacement for rubber foot.
sistors AlQ706-710. Use new HP PIN 1853-0281. 3779A-58. All serials. Conversion of 3779A (all models) 4936A-6. All serials. Preferred replacement fuses on
to 37798 opt. 001 or opt. 003. battery charger assembly.
HP 3562A DYNAMIC SIGNAL ANALYZER 3779A-59. All serials. Conversion of 3779A (all models)
HP 3562A-3. Serials 2502A01478, 2502A01474, to 37798 opt. 002. HP 4947A TRANSMISSION IMPAIRMENT
2502A01467 and below. New replacement capacitor 37795138, All serials. Preferred replacement for relays MEASURING SET
for ADC. AlKl-KG; A8K1; A9Kl-K5, K7, K9, K10; A31K1; 4947A-1. Serials 2636U00196 and below. Preferred
A37Kl-K4. replacement of PROM assembly HP P/N
HP 3577A NETWORK ANALYZER 37798-18A. All serials. Conversion of standard 37798, 03773-80015.
3577A-9. Serials 2333A11610 and below. Adding opt. 001 or opt. 003 to 37798 opt. 002. 4947A-2. Serials 2627U00142 and below. Additional
washer solves intermittent receiver board problems. 37795-338. All serials. List of HP 3779C/D assemblies supply pin for A-D converter U65 (A7 board).
that are direct replacements in HP 3779NB models. 4947A-3. Serials 2627U00142 and below. Firmware
HP 37028 IF/BB RECEIVER 37798-62. All serials. Conversion of standard 37798 modification to rectify erroneous printout when
to 37798 opt. 001 or opt. 003. performing EDD measurements (slow sweep).
37028-53. All serials. Mechanical parts identification.
37798-63. All serials. Conversion of standard 37798, 4947A-4. All serials. Preferred replacement of analog
HP 3708A NOISE AND INTERFERENCE opt. 001 or opt. 003 to 3779A opt. 001, opt. 002 or MUX U64 on A5 assembly with new part
TEST SET opt. 003. 1826-1617.
3708A-12. Serials 2414U00250 and below. Modification 37790-31. All serials. Conversion of standard 3779C
to prevent front panel display lock-up. to 3779C opt. 001, opt. 002 or opt. 003. HP 4951 C PROTOCOL ANALYZER
3779C-32. All serials. Conversion of all models 3779C 4951C-2-S. Serials 2631A00101 thru 2631A00243.
HP 3709A CONSTELLATION DISPLAY to 3779D opt. 001 or opt. 003. Possible shock hazard may exist on the PC board
3779C-33. All serials. Conversion of 3779C (all models) assemblies. Supersedes 4951C-1.
3709A-3. All serial numbers. Performance and operation
verification test 4-16 program error. to 3779D opt. 002.
3779D-36. All serials. Conversion of standard 3779D HP 4953A PROTOCOL ANALYZER
HP 3710AlllA/12A IFIBB TRANSMITTER to 3779D opt. 001 or opt. 003. 4953A-9. Serials 2522A00751 to 2605A01501 (instru-
3779D-37. All serials. Conversion of standard 3779D. ments with locking handles). New improved locking
371OA-24. All serials. Mechanical parts identification.
opt. 001 and opt. 003 to 3779C opt. 001, opt. 002 handle assembly is now available.
371 1A-7. All serials. Mechanical parts identification.
or opt. 003. 4953A-10. Serials 2605A01360 to 2605A01489
371 1A-8. All serials. Preferred replacement for A1 CRl,
3779D-38. All serials. Conversion of standard 3779D, (shipped between June 1 and Aug. 1, 1986). Mod-
A9CR1 and A9CR2.
opt. 001, or 003 to 3779D opt. 002. ification to improve the HP 4953A in BitiCharacter
3711A-9. Serials 2620U00885 and below. Directions
oriented protocol.
for setting up the A9 580 MHz oscillator symmetry
adjustment. HP 3780A PATTERN GENERATORIERROR
3712A-15. All serials. Mechanical parts identification. DETECTOR HP 5061A/B CESIUM BEAM FREQUENCY
3780A-31A. Serials 22241102486 to 2224U03100 and STANDARD
HP 3746A SELECTIVE LEVEL MEASURING 24491103101 to 2449U03165. Recommended IC 5061A-19. All serials. 5061A oscillator tuning shaft
SET replacement to improve performance of A37 sys- replacement kit installation instructions.
3746A-22. Serials 25081100882 and below. Modification tematic error detector and A38 error counterIcontrol 5061A-20. Serials 21 12 and higher. Modifications to
to prevent possible serial poll hang-ups. logic board. fix large frequency offsets in long time constant
mode.
HP 3754A/3756A/3757A ACCESS SWITCH HP 37818 PATTERN GENERATOR 50618-1, Serials 2636 and below. Modifications to fix
37818-10, All serials. B8ZS retrofit kit instructions. large frequency offsets in long time constant mode.
3754A-1. Serials 251 2U01510 and below. Modification
to prevent incorrect switch selection after
power up. HP 37828 ERROR DETECTOR HP 5316A UNIVERSAL COUNTER
3756A-1. Serials 251 1U00666 and below. Modification 37828-1 1. All serials. BBZS retrofit kit instructions. 5316A-4. All serials. Modification to prevent HP-I8
to prevent incorrect switch selection after lock-up problem.
power up. HP 37938 DIFFERENTIAL PHASE
3757A-2. Serials 2127U00906 and below. Modification DETECTOR HP 5342A MICROWAVE FREQUENCY
to prevent incorrect switch selection after 37938-8. All serials. Preferred repalcement A2 or A3 COUNTER
power up. assemblies in conjunction with the 8.2 MHz high 5342A-49. All serials. Modification to prevent HP-18
tone. lock-up problem.
HP 3764A DIGITAL TRANSMISSION
ANALYZER HP 3852A DATA ACQUISITION AND HP 5343A MICROWAVE FREQUENCY
3764A-19. Serials between 26151101 162 and CONTROL UNIT COUNTER
2712U01637. Retrofit kit to upgrade the auxiliary 3852A-OA. Service note index of the HP 3852A and 5343A-26. All serials. Modification to prevent HP-I8
analog input. associated modules. lock-up problem.
6 BENCH BRIEFS JANUARY-MARCH 1987
WWW.HPARCHIVE.COM
HP 535OBl5351B15352B MICROWAVE 8672A-14. All serials. Instructions for installing new 44702A/8-5. Serials 2612A00464 (HP 44702A) and
FREQUENCYCOUNTER opt. 008 amplifier retrofit. below; 2612A00282 (HP 447028) and below. Mod-
53508-1. Serials 2627A00153 and below. Firmware 8672A-17. Serials 2640A and below. Preferred power ification to correct erroneous readings at elevated
change corrects display of zeros when signal is amplifier replacement. temperatures.
present.
53518-1. Serials 2627A00119 and below. Firmware HP 8683D SIGNAL GENERATOR HP 44708A RELAY MUXlTC FOR HP 3852A
change corrects display of zeros when signal is 8683D-1. All serials. Output RF assembly kit installation. 44708A-1. Serials. All modules used in a mainframe
present. having firmware 1.1 or below. Modificationto prevent
53528-1. Serials 2627A00104 and below. Firmware HP 8684AlB SIGNAL GENERATOR erroneous reference temperature when scanning
change corrects display of zeros when signal is 8684A-4. All serials. Power supply adjustment multiple TC multiplexers.
present. procedure.
86846-4. All serials. Power supply adjustment HP 44710A FET MUXITC FOR HP 3852A
HP 5355A AUTOMATIC FREQUENCY procedure. 44710A-1, Serials. All modules used in a mainframe
CONVERTER having firmware 1.1 or below. Modification to prevent
5355A-3. Serials 2644A and above. Modification to HP 8684D SIGNAL GENERATOR erroneous reference temperature when scanning
prevent 5355A miscounts due to sidebands noise. 8684D-1. All serials. Power supply adjustment multiple TC multiplexers.
procedure.
HP 5359A TIME SYNTHESIZER HP 44715A COUNTERiTOTALIZER MODULE
5359A-6. All serials. Modification to prevent HP-18 HP 877OA ARBITRARY WAVEFORM FOR THE HP 3852A
lock-up problem. SYNTHESIZER 44715A-1. Serials 2551A00319 and below. Modification
8770A-1A. Serials 2540A00101 to 2540A00114. As- to improve performance when taking frequency
sembly A18 English to metric conversion. measurements.
HP 53708 UNIVERSAL TIME INTERVAL
COUNTER 8770A-2. Serials 2621A and below. Front panel as-
53708-2. All serials. Modification to prevent HP-18 sembly change. HP 51089A DISPLAY UNIT
lock-up problem. 8770A-4. Serials 2540A and below. Improved multi- 51089A-1. Serials 2510A00180 and below. Modification
plexer assembly diagnostics. to prevent ribbon cable from coming loose.
8770A-5. Serials 2626A00233 and below. Improved
HP 5501A LASER HEAD
line switch mounting. HP 54200AlD DIGITIZING OSCILLOSCOPES
5501A-10A. All serials. Modification to improve the A5 877OA-8. Serials 2627A and below. Improved HP-I8
lock reference board. 54200AiD-6. 54200A serials 2601A00975 (appx) to
data cable. 2617A01069; 54200D serials 2601A00619 (appx)
to 2618A00637. Rubber bumpers which hold PC
HP 5508A LASER MEASUREMENT HP 8770A ARBITRARY WAVEFORM boards in the motherboardslots may be misplaced
DISPLAY SYNTHESIZER causing boards to come loose.
5508A-2. Serials 2628A and below. EPROM firmware 8770A-9-S. Serials 2627A00254 and below. Potential
revision.
line module short. HP 64215A 6809 EMULATOR SUBSYSTEM
8770A-10. Serials 2632A00290 and below. Improved 64215A-3. All repair numbers. Characteristics of the
HP 5517A118A LASER HEADS front panel display. emulator's non-maskable interrupt signal.
5517N18A-lA. Serials 2532A and below. Repair of 8770A-11. Serials 2627A and below. Sequencer as-
sampler assembly to improve performance. sembly part number change.
HP 64216A 6809E EMULATOR POD
64216A-1. Emulation pod board serial prefix numbers
HP 8447E, 8447F AMPLIFIER 0.1-1300 MHz HP 8956A SYSTEM INTERFACE 2332A and below. No HALT ACKNOWLEDGE from
8447EiF-5. 8447E: Serials 2631A and above; 8447F: 8956A-3. Serials 2525A and below. Procedure for emulator while in background.
Serials 2634A and above. Preferred replacement replacing fuses ATPFl and AT3Fl. 64216A-2. All repair numbers. Characteristics of the
power amplifier (HP Part Number 5086-7006). 8956A-4. Serials 2525A and below. Modification to emulator's non-maskable interrupt signal.
improve LED life.
HP 8477A CALIBRATOR HP 642288 80286 EMULATOR POD
8477A-2. All serials. Preferred replacement for transis- HP 8970A NOISE FIGURE METER 642283-1, Pod repair number 2627A00150 and below.
tors A l Q l l and AlQ18. 8970A-10. Serials 2633A and below. Improved meas- Modification to improve write cycle timing.
urement repeatability.
HP 8481A POWER SENSOR HP 64286A F9450 EMULATOR
8481A-3A. All serials. Cartridge replacement HP 117298 CARRIER NOISE TEST SET 64286A-1. Serials 2524A and below. Modification to
instructions. 117298-4. All serials. Improved residual phase noise correct data wait state tracking.
performance test.
HP Q8486A POWER SENSOR HP 69791Al69792A HIGH SPEED MEMORY
HP 37203Al37204A HP-IB EXTENDER CARDS
Q8486A-1. All serials. Procedure for torquing the
37203A-11. All serials. Change to on-site repair policy. 69791A-3/69792A-2. All serials. Verification program
waveguide flange screws.
37204A-1A. All serials. Installation of fiber optic corrections.
interfaces.
HP 8557N58B159A SPECTRUM ANALYZER HP 70001A MAINFRAME
8557A-15. Serials 2106A and below. Sweep trigger HP 44701A INTEGRATING VOLTMETER 70001A-2. All serials. HP 70001A mainframe to main-
rotor replacement. FOR 3852A frame cabinet interlock kit instructions.
8558534. Serials 2145 and below. Correct replacement 44701A-1A. All units used with mainframe firmware 70001A-3. All serials. Preferred replacement of rear
for the sweep trigger rotor. revision 1.O. Modification to prevent lock-up or frame assembly.
8559A-30. Serials 2208A and below. Sweep trigger missing reading when taking multiple readings per
rotor replacement. trigger with HP 44701A. HP 70310A PRECISION FREQUENCY
44701A-2A. All serials. Procedure for eliminating in- REFERENCE
HP 8566AlB SPECTRUM ANALYZERS termittent error 27. 7031OA-1, Serials 2622A00149 and below. Modification
(85662A IF DISPLAY SECTION) to ferrite bead A2L5 on the A2 power supply and
8566A-24. All serials. Bandwidth filter assembly A4A4/ HP 44702AlB HIGH SPEED VOLTMETER processor board assembly (HP PIN 70310-60002).
A4A8 replacement kit. FOR HP 3852A
85668-12. All serials. Installation procedure for rebuilt 44702A/B-1. Serials 2545A00199 and below (HP HP 70900A LOCAL OSCILLATOR MODULE
A1 5 controller assembly. 44702A); 2546A00119 and below (HP 447026). 70900A-4A. All serials. New repair strategy for the
M o d i f i c a t i o n t o improve low r e s i s t a n c e controller board.
HP 8568NB SPECTRUM ANALYZERS measurements.
(8566249 IF DISPLAY SECTION) 44702A/8-2. Serials 2545A00193 (HP 44702A) and HP 85650A QUASI-PEAK ADAPTER
below; 2545A00116 (HP 447028) and below. Mod- 85650A-3A. All serials. List of correct AC mains fuses.
8568A-47. All serials. Bandwidth filter assembly A4A4/
ification to correct overload readings when 85650A-6. All serials. 21.4 MHz crystal matching
A4A8 replacement kit.
autoranging. requirements.
85688-12. All serials. Installation procedure for rebuilt
A1 5 controller assembly. 44702AiB-3. Serials 2545A00193 (HP 44702A) and
below; 2545A00115 (HP 447028) and below. Mod- HP 85685A RF PRESELECTOR
ification to correct false detection of overloads. 85685A-1A. All serials. Firmware revision for spectrum
HP 8672A SYNTHESIZED SIGNAL 44702A/8-4. Serials 2545A00193 (HP 44702A) and analyzer compatibility.
GENERATOR below; 2545A00115 (HP 447028) and below. Mod- 85685A-3. All serials. Instructions for a direct plotter
8672A-108. Serials 2640A and below. Instructions for ification to correct erroneous readings at elevated dump with EM1 receiver.
installing opt. 008 retrofit for greater power output. temperatures. 85685A-7. All serials. ROM replacement procedure.
JANUARY-MARCH 1987 BENCH BRIEFS 7
WWW.HPARCHIVE.COM
'der Form Please photocopy this order form 11you do not
want to cut olf the page
For European customers (ONLY) Name
Hewlett-Packard Firm
Central Mailing Dept. Address
P. 0. Box 529
Van Hueven Goedhartlaan 121 City
h
AMSTELVEEN-1134 !
State Zip
Netherlands
37768-35 0 3852X-2 0 53708-2 0 8770A-5 0 64216A-2
3779A-138 0 3852X-3 0 5501A-10A 0 877OA-8 0 64228s-1
3779A-328 0 3852x4 0 5508A-2 0 877OA-4S 0 64286A-1
377949-57 0 3852X-5 0 5517A118A-lA 0 8770A-10 0 69791A-3169792A-2
3779A-58 0 4935A-128 0 8447ElF-5 0 877OA-11 0 70001A-2
3779A-59 0 4936A-5A 0 8477A-2 0 8956A-3 0 70001A-3
37798-138 0 4936A-6 0 8481A-3A 0 8956A-4 0 7031OA-1
37798-18A 0 4947A-1 0 Q8486A-1 0 8970A-10 0 70900A-4A
37798-338 0 4947A-2 0 8557A-15 0 117298-4 0 85650A-3A
37798-62 0 4947A-3 0 85588-34 0 37203A-11 0 8565OA-6
37798-63 0 4947A-4 0 8559A-30 0 37204A-1A 0 85685A-1A
3779G31 0 4951C-2-S 0 8566A-24 0 44701A-1A 0 85685A-3
3779G32 0 4953A-09 0 85668-12 0 44701A-2A 0 85685A-7
3779033 0 4953A-10 0 8568A-47 0 44702N8-1
3779D-36 0 5061A-19 0 85688-12 0 44702NB-2
3779D-37
3779D-38
3780A-31A
0 5061A-20
0 50618-1
0 5316A-4
0 8672A-108
0 8672A-14
0 8672A-17
0 44702NB-3
0 44702N8-4