HP 6296A Service manual

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DC PowerSupply
HPModel 6296A
Operating and Service Manual

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HEWLETT
____
_
~~PACKARD
OPERATING
AND
SERVICE
MANUAL
DC
POWER
SUPPLY
HP
MODEL
6296A
HP
Part No.
06296-90001
SERIAL NUMBER PREFIX
60
ONE
YEAR
WARRANTY I
This
HP
product
has
aone
year
warranty.
P!eue
rept.:e
the
first
paragraph
of
the
warranty et.atement
on
the
inside
front
COYer
with.
the
following:
Thia
Hewlett·Pacbrd
hardware
product
is
warranted
against deftds
in
mataial
GUI
worlananship
for a
period
of
one
year
from
date
of
delivl'ry.
HP
software
ud
firmware
products,
which
are
designated
by
HP
for
me
with a hudware product
and
when
property
installed
on
that
hardware
product.
are
Waftaftted
not
to
fail
to
execute
theirprogramming
instruc:tiDN
due
to
defects
in
a\aterial and
worknwWtip
for
a period
of
90
days from
date
of
delivery.
If
HP receives notice
of
such
defects
duringthe
wmanty
period,
HP
shall
ftPair
or
repi.:e
software meda
and
firmware
which
do
notexecvte
theirprogrmnming
iN1nlCtioM
due
to
such
defeds. HP does not warrant
that
the
operation
for
the software,
finnw.mre
or hardware lhall
be
uninterrupted
or
mor
free.
CALL
CENTER
LIBRARY
11110
llH
~~11111111111111111111111/U
11111
ml
111111~
2400013351
I
QTS U
BR
/\ fW
Printed
: December,
1961

CERTIFICATION
Hewlett-Packard Company certifies
that
this
product
met its publishedspecffications
at
time
of
shipmentfrom
the
factory.
Hewlett-Packard further certifies
that
its calibration measurements
are
traceable to the United States National Bureau
1af
Standards, to the extent
allowed
by
the Bureau's calibration facility,
and
to the calibration facilities
of
other International
Standards Organization members.
WARRANTY
This Hewlett-Packard hardware product
is
warranted against defects in material and workmanship
for
a period of one
ve•ar
from date of delivery. HP software and firmware products,
which
are
designated by HP
for
use
with
a hardware produ'ct
and when properly installed
on
that
hardware product, are warranted
not
to
fail
to
execute their programming instructions
due
to
defects in material and workmanship
for
a period
of
90 days from date
of
delivery. During the warranty period, HP
Company will, at its option, either repair
or
replace products
which
prove
to
be defective.
HP
does not warrant that the
operation
of
the software, firmware, or hardware shall be uninterrupted or error free.
For warranty service,
with
the
exception
of
warranty options,
this
product must be returned to a service facility designated
by
HP. Customershall prepay shipping charges
by
(andshall payall dutyand taxes)
for
products returned
to
HP
for
warran1ty
service. Except
for
products returned
to
Customer from another country, HP shall pay
for
return
of
products
to
Customer.
Warrantyservices outside the
country
of
initial purchase are included in HP'sproduct price only
if
Customer
pays
HP
interna-
tional prices (defined as destination local currency price,
or
U.S.
or
Geneva Expon price>.
If
HP
is
unable, within a reasonable time,
to
repair
or
replace
any
product
to
a condition as warranted, the Customer shall
be entitled to a refund
of
the purchase price upon return
of
the
product
to
HP.
LIMITATION
OF
WARRANTY
The foregoing warranty shall
not
apply
to
defects resulting
from
improper
or
inadequate maintenance by the Customer,
Customer-supplied software
or
interfacing, unauthorized modification
or
misuse, operation outside
of
the environmental
specifications
for
the product,
or
improper site preparation and maintenance. NO OTHER WARRANTY IS
EXPRESSED
OR
IMPLIED.
HP
SPECIFCALLY DISCLAIMS THE IMPLIED WARRANTIES
OF
MERCHANTABILITY AND
FITNESS
FOR
.A
PARTICULAR PURPOSE.
EXCLUSIVE REMEDIES
THE REMEDIES PROVIDED HEREIN
ARE
THE CUSTOMER'S SOLE
AND
EXLCUSIVE REMEDIES.
HP
SHALL NOT
BE
LIABLE
FOR
ANY
DIRECT, INDIRECT, SPECIAL, INCIDENTAL,
OR
CONSEQUENTIAL DAMAGES,
WHETHER
BASED
ON CONTRACT, TORT,
OR
ANY
OTHER
LEGAL THEORY.
ASSISTANCE
The
abovestatements apply
only
to
thestandardproductwarranty. Warranty options, extendedsupportcontracts, produ1:t
maintenance
agreement$
and
customer
a$$i$tance
11g1eement$
are
also
Bvai/able.
Contact
your
nearest
Hewlett-Packard
Sales
and
Service office
for
further information
on
HP's
fuU
line
of
Support Programs. · ·
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•

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MANUAL
CHANGES
Model
6296A
DC
Power
Supply ·
·
Manual
HP
Part
No.
06296-90001
Change
Date
10/03/90
Make
all
corrections in the
manual
according
to
errata
below, then
check
the following
table
for
your
power
supply
serial
number
and
enter
any
listed
change(s) in the
manual.
SERIAL
MAKE
:----------•-------------:
CHANGES
: Prefix
Number
I
I
·---------- -------------·---------
ALL
-----
---
ERRATA
60
00231-00260
1
60
00261-00290
1,2
70
00291-00320
1,2,3
70
00321-00350
1-4
7M
00351-00380
1-5
7M
00381-00410
1-6
7H
00411-00522
1-7
7M
00523-00612
1-8
7M
00613-00712
1-9
7H
00713-01776
1-10
1140A
01777-01796
1-11
1140A
01797-01816
1-12
1140A
01817-02411
1-13
1551A
02412-02419
1-14
1552A
02420-02776
1-15
1730A
02777-02956
1-16
1807A
02957-02986
1-17
1816A
02987-03146
1-18
1834A
03147-03386
I
1-19
1918A
03387-03545
1-20
1929A
03547-04086
1-21
2114A
04087-04246
1-22,•23
2133A
04247-04486
1-23
2234A
I
04487-04926
1-24
2410A
04927-05566
1-25
2631A
05567-05916
1-26
2841A
05917-06036
1-27
2933A
06037-06146
1-28
3003A
06147-06206
1-29
3024A
06207-up
1-27,29,
30
----------------------------------
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I
1
ERRATA
In
Table
1-1
(and
paragraph 5-20),
change
the
INTERNAL
IMPEDANCE
AS
A
CONSTANT
VOLTAGE
SOURCE
(Output
Impedance)
specification
to
read:
"OUTPl1l'
IMPEDANCE
{TYPICAL):
Approximated
by
a 5 milliohm resistance in
series
with a 1 microhenry inductance.
On
page
3-2, Figure 3-4, disconnect
strap
between
terminals
A4
and
A5.
and
connect
A5
to
+S.
On
page
3-3, Figure 3-6, disconnect
strap
between
terminals
A7
and
AS
and
con-
nect
A8
+S.
Add
the following note
to
paragraph
3-18
on
page
3-2
and
to
paragraph
4-41
on
page
4-7:
"A
protection
circuit
which
protects the
series
regulator
from
overload
damage
is
ac-
tivated whenever: (1)
a.
short
is
placed
across the supply, or (2) the output
is
rapidly
down
progranmed
by
an
increment
of
more
than 4
to
10
volts.
When
activated,
the protection
circuit
limits
the supply's
output current to about
101
of
rating for a
period of
from
0.5
to
10
seconds depending
on
the
model
and
the load conditions."
On
page
5-6, paragraph 5-22,
change
steps a
and
f as follows:
a.
Connect
test
setup
shown
in Figure 5-4
with switch
51
closed.
f.
Insert
load
resistor
(Ry)
by
opening
switch
S1.
Also,
add
the following note:
"The
short
circuit
protection
circuit
in
this
supply
will
be
activated
if
switch
: S1
is
closed instead of
opened
during
·
this
test."
On
page
5-8,
in
Step 3 of Table 5-4,
change
the
text
to
read:
"If
it
1s not, proceed
to
Step 4."

Page
2 -
HP
P/N
06296-90001 changes -continued
ERRATA
In
the
parts
list
on page
6-5:
Change
C501
to
HP
P/N
0160-0710.
Change
C200
to
fxd
film
.01
uF, 200
V,
HP
P/N
0160-0161.
Change
the
listing
for
Q702,
800,
850, 852,
853
to
2N2907A,
Sprague
56289,
HP
P/I
1853
-0099.·
.change
the
part
number
for
C803
to
0180-1986
and
its
voltage
rating
to
85
V
•
.
Add
pilot
light
DSl
HP
P/N
1450-0566.
Change
SCR
CR502
and
CR504
from
HP
P/N
1884-
0019
to
P/N
1884-0347.
en
,Page 6-T:
Add
R865,
var
ww
250
ohm,
HP
P/N
2100-0439.
Also
add
Spacer-round,
HP
P/N 0380-1551
and
Internal-external
lockwasher,
BP
P/H
2190-0576.
Delete
the
two
types
of
binding
posts
list
and
add
the
following:
black
binding
post,
HP
P/N 1510-0114,
qty.
2
red
binding
post,
HP
P/N
1510-0115.
Add:
Insulator
(CR502,
504),
.HP
P/H 5020
-5595.
For
all
instruments
delivered
on
or
after
July
1,
1978, change
the
HP
P/N
for
fuseholder
from 1400-0084
to
fuseholder
body
2110-0564 and fuseh.o1der
carrier
2110-0565.
On
page
6-7:
Change
the
HP
P/N
for
fuseholder
nut
from
2950-0038
to
2110-0569.
If'
old
fuseholder
must be
replaced
for
any
reason,
replace
complete
·
fuseholder
and
nut
with
new
fusebolder
parts.
Do
not
replace
new
parts
with
old
parts.
On
page
6-8,
note
that
effective
January
1.
1971,
Options 007
(10-turn
voltage
control)
and
008
(10-turn
current
control)
are
.
no
longer
available
individually,
but
are
still
available
combined
as
Option
009. Likewise
Options
013
(10-turn
voltage
control
with
decadial)
are
· no
longer
available
in-
dividually,
but
are
available
combined
into
a
single
new
option
designated
Option
015.
Make
these
changes
wherever
Option
007
•.
008,
013,
or
014
is
mentioned
in
the
manual.
2
ERRATA
On
the
schematic
diagram,
indicate
tbat
t.
nominal
value
for
R313
is
1
k.
ThE!
exa
·value
for
R313
is
factory
selected
to
op-
timize
the
range
of
transient
adj\l.st
pot
R307.
In
Appendix
A,
change
Figure
A-1
Overvoltage
Protection
Crowbar
to
appear
as
shown
below:
DC
POWEii
Sll'Pl.Y
62-...
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