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JOW h-is
HP 8663A
SYNTHESIZED SIGNAL GENERATOR
(Including Options 001, 002, & 003)
Service Manual


SERIAL NUMBERS

This manual applies directly to instruments with
serial numbers prehek
2234A to 2927A and all MAJOR changesthat apply to your instrument,
mu. 01 JUL91

For additioti iqwrtant information about serial
numbers, refer to WVSTRUMENTS COVERED BY
THE MANUAL" in Section I,


Third Edition

This materid may be reproducedby or for the U.S.
Government pursuant to the Copyright Licmse urn
der the clause at DF& 52.227.7013(APR 1988).

Copyright@HEWLETT-PACKARD COMPANY 1982
EAST 24001 MISSION AVENUE, TAF c-34, SPOKANE, WASHINGTON, U.S.A. 99220




HEWLETT
EB PACKARD
COPYRIGHT AND DISCLAIMER NOTICE

Copyright - Agilent Technologies, Inc. Reproduced with the permission of Agilent
Technologies Inc. Agilent Technologies, Inc. makes no warranty of any kind with regard
to this material including, but not limited to, the implied warranties of merchantability
and fitness for a particular purpose. Agilent Technologies, Inc. is not liable for errors
contained herein or for incidental or consequential damages in connection with the
furnishing, performance, or use of this material or data.
Documentation Uodate Service Packet




HP 8663A Service Manual
(rev.01JUL91)
HP 6663A
SYNTHESIZED SIGNAL GENERATOR
(Including Options 001, 0029 & 003)
Service Manual

SERIAL NUMBERS

This mamml applies directly ti instruments with
serial numbers prefixedz
2234A to 2927A and all MAYOR changes that apply to your instrument.
renO2OCT89

For additional important information about serial
numbem, refer to `INSTRUMENTS CWERED BY
THIS MANUAL" in Section 1.


SecondEdition

This material may be reproducedby or for the W.S.
Governmentpursuantto the Copyright Licenseunder
the clauseat DFARS 52.227-7013(APR 1938).

Copyright@HEWLElT-PACKARD COMPANY 1982
EAST 24001 MISSION AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A. 99220




HEWLETT
Em PACKARD
Model 8663A
Model 8663A




A2Ali




reuJ5MAY89
l4P Pal
Number




6-38
Model 8663A Repheable Parts




6-43
Replaceable Parts Model 8663A

!hble 6-3. Replaceabk Parts




6-44 rev.OlOCX8?
!&Me 4-3. RephceabkParts




6-45
Model E663A

!hble d-3. Replacmhle Parts




nw.020CT89
lIzMe 4-3. Replaceable Parts




A3A7
Fieplaceable
Parts Model 6663A
!&Me 4-a. Replaceable Parta




nxOZOCT89
Mock1 8063A
Model 8663A




A4A4Al




TFLefer Section 7 for update information.
to


rmO2OCT87 6-89
Replaceable Pati




A4A4A2 t




08663-60366 - SERIAL PREFIX 2536A AND ABOVE




Tactmy Selecwl component (Refer ta swtion 5).


6-90 reoJ2FEB87
Model 81363A F&placeable Parts




Mfr. Purl Number
Replaceable Part9 Modal 8663A




*Factory Selected Component (Refer TV Section 51.


reuJ2FEB87
Model 866SA Replaceable Parts
6-175
Replaceable Parts Model 6663A




Mfr. FM Numbof




A8A2
Replaceable Parts
Model 8663A




Al2A2
0-212
Model 8663A



Mfr. Pal Numbmr




6-2 19
0-220
Model 6663A




reuS8MAY89 6-221
Model S663A




6-223
Replace&k Parts Model 8663A


!lhble 6-3. Rephceabk Parts
Mfr. Mfr. !hrl Number
Code
Model 6663A Rephceable Parts

Table 6-3. Replaceable
Pam
MfI.
Coda
Model 8663A



Mfr. hl Number




rmO2OCT89
Service IT A Model %63A
(y--f K-
CHANGES

ill Serial Prefixes On the A3A7 Component Locator:
. A3A7C23, C24, C26, C27 ~ Delete A3A7C23, C24, and `X6. Change the
existing C27 to C23.



Z44lA and above On the A3A7 Schematic:
l AZlA7Fil2, Rl3, Rl5, Rl7, F120 Change the values of these resistors to the
new values shown b&xv:
R12 to 3.83k
Rl3 to 17.8k
RI5 to 2l.Kk
Rl7 to 14.7k
R20 to 15k



!449A and above On the A3A7 schematic:
l A3A7F128, R30 Change the value of RZ8 and R30 to 1.2lk.



549A and above On the A3A7 Schematic:
l A3A7!45*, RlO, Rl2, Ri3, RI& Rl7, R20 - Change the values of these resistor
to the new values &own below:
R5* to &Ilk
RlO tu 5.llk
R12 to 4.22k
RlS to 21.5k
R15 to 34,8k
R17 to 26.1 ohms
R20 to 90.9k



!936A and above On the A3A7 schematic:
l A3A7R28, R30 - Change the v&e of R28 and R30 to lk.




SS23
renO2OCT89 8-482.1
ModelS663A Service
CHANGES
Model 8663A .& Service
CHANGES

On the Al lA2 schematic:

l Al iA2R4*> u - Changethe value of R4* to 5,62k. Change
the value of R7* to 5.11k.




ss43
g-628,1
Y
Model 8663A Service

CI-IANGES

Z342A lo 2846A On the A7A3 schematic:
l A7A3 - Modify the schematicee&wn in the partial echmnaticUP/O Figu~
m, A7A.3PowerSupply Inverter, Motherboard & Liie Filter Schematic
(2342Ato 2846AY on pa@ @-908.5


25lOA to 2846A On the A7A3 schematic:
l A7A3 ~ Modify the schematices shown in the partial schmnatic"P/O Figul
B-908,A7A3 Power Supply Inverter, Motherboard & Line Filter Schematic
(25lOA to 2646A)" on page6-906.6


Z545A and daave On the A7A4 %chematic:
l 08662-60376 - Chmge the part mmber of the A7A4 Assembly to
08662-60376.



NOTE
If replacing oLd
the A7A4 powere&y motherboardwith the new
board(08662-60X%), extremecareehou,W ezmcised aa the
be
connection we armngedin o diferent o&r on the 08662-60376
board.For information regardinginstolling o new A7A4 Assembly
~08662-60376) in an okkr instrument, refer w Inatdation htructinm
on page8408.1 - HP Part number 08662-90069. wiring codesand
The
boardlabelsshownon the eckmntic are cm&.


:265lA and above On the A7Al schematic:
l 08662-60347 - Changethe part number of the A7Al Assemblyto
08662~60347.
l Q4, Q6, Q8 - Changethe part number of Q4, Q6, and Q8 to 18E4-0330 tl
in
"Table of Tramistor and IntegratedCircuit Pact Numbers."


2846A and below On the schematic:
l fl- This aeeemblyis not individually backwarda compatible except ae a
total kit - the Fan ReplacementKit in availableea HP part number
08662-60363.
If your rear panel frame ie damagedand your fan needeto be replaced,ordl
the F&ar Panel Kit, HP part number 06662-60364. section 7 for furtbez
See
information,




revSOJUN89 a-908.3
Service Model 8663A
(-pP
CHANGES

2919A and above On the schematic:
l m - Use the partial schematic on page g-908.7.

. A7A3 - In A7A3 INVERTER, under FULL-WAVE RECTIFIERS AND
RIPPLE FILTERS, draw an on-page connector extending upward from the
node of C9. Label it "A" +23 V. -A" connects to the partial schematic on
page 87908.7.




SS65
DOCUMENTATION UPDATE SERVICE PACKET




4



HP 8663A SERVICE hfANUAL
(Serial Prefix Range 2234A in 2927Al
HP 8663A ' LJ
SYNTHESIZED SIGNAL GENERATOR
Including Options 001, 002, & 003

Service Manual

SERIAL NUMBERS
Thk manwJ appliesdirectly ti imtmments with r+xial
numbersprefixedz
2234A to 2824A
rw.01 JUN88

For additional important information about aerial
numbem, refer tn `INSTRUIvWNTS COWBED BY
THIS MANUAL" in Section 1.


SecondEdition

This matmial may be reproducedby or for the U.S,
Governmentpurment ti the Copyright Licenseunder
the clauseat DFARS 52.227-7013
(APR 1988).

Co~riSht~HEWLE~-PAC~RD COMPANY 1962
EAST 24001 MISSION AVENUE, TAF C-34, SPOKANE, WASHINGTON, U.S.A. 99220


Swvic.3 Manual (Volume 1,2,3,4) HP Pwt 06663-90071

G?her Documenta AvaIlable:
Opwation and Calibration Manual (Vdumm 1) HP part 06663-90069
MIcrofiche Smvlca Manual HP Part 06663-90072
Mlcroflch~ 0pwatk.n and Cedlbmtton Manual HP Part 06663-90070 PtinteU in U.S.A. : September 1969



HEWLETT
Ii!! PACKARD
Model 66133A ReplaceableParta



Section 6
REPLACEABLEPARTS


6-i" INTRODUCTION TO THIS SECTION
This section contains information for orderingperts. Table 6-l liste assemblies within the instrument
that may be replacedon an exchangebasis. Table 6-2 lista referencedesignationsand abbreviations
that areusedin the Replaceable PactsList. Table 6-3 lists all replaceable
part8 in the instrument. Table
6-4 contains the names and addresses that correspondto the manufacturer'scode numbers listed in
Table 6-3. Also included in this sectionarephotographsand drawingsto aid in identifying end ordering
chassismounted parts and mechanicalparts.

6-2. RESTORED ASSEMBLIES
Table 6-l lists assemblieswitbin the instrument that may be replacedon an exchangebasis, tbue
affording a considerablecost savinge.Exchange,factory-repairedand t&ad assembliesare available
only on a trade-in basis;therefore,the defectiveassemblies
must be returnedfor credit. For this reason,
assembliesrequiredfor spareparts stock must be orderedby the new assemblypart number.

6-3. REFERENCE DESIGNATIONS AND,ABBREVlATlONS USED IN THIS MANUAL
Table 6-2 lists the referencedesignation letters for electrical parte in the instrument. The letter
designationsfound in Table 6-2 are coupledwith muneric designationsta provide a unique reference
designation for each part in the instrument. For example AlAlRl is the referencedesignationof a
particular resihr Rl on assemblyAlAl.
Table 6-2 also lista abbreviationsusedin the parts hat and on schematics.

6-4" REPLACEABLE PARTS LIST
Table 6-3 is a list of replaceable
parta and is organizedas follows:
a. Electrical assembliesand their componentawith referencedesignationsin alphanumericorder.
b. Chassis-Mountedparta with referencedesignationsin alphanumericorder.
c. Mechanical pati with referencedesignationsin alpbamxoeric order,

Factory Selected Parts (*).
P&a marked with an asterisk (*) are factory selectedparta. The value hated in the parts list is the
nominal tiue. Refer to Section 5 for information on determining what valuet0 ueefor replacement,

hstrument Changes (t).
Parta marked with a daggerhave been changedto improve the perfo-ce and reliibility of your
instrument, Refer to Section 1 for an explanation of instrument changes.




6-l