HP 4262A User Manual

Model 4262A Section VIII
Figure 8-17
Option Section Isolstion Procedure
. Power Supply Section Isolation Procedure. ("unh 13 not equipped with m, Analog and Digital Section Isolation Procedure.
. on, omit this pr -y
Are
the
following
de
volt-
Remove
option
beard(s)
gven
in
Docs
trouble
occur
4t
a
Bl
Perform
SELF
TEST.
If
START
I}
8502
01
AD
boATd
cotrect?
|XES
the
uu;:elw
trom
iestrument.
0
|
ol
Does
tngper
tamp
fasht
[XES
]
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o
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FAIL
s
inicaed
o0
par
1.
Remove
AlL
A2,
A13
XAZ3(3L)
1.
Set
42624
controls
1
follows:
ves
|
%o
&
ng:crr:
838
Does O‘l}“ by ticular range, L
121.‘9:
l:,
;&gz
symptom
disappear?
(not
at
every
settng)?
measurement
function?
proccdure.
:
wnit.
g}}x\;:%rrnro\\iébk
thooting
to
Assembly
Level,
ASTPG:
+4.85
to
45,15V
Option
Board
No.
NO
YES
YES
2.
s"g:wlu:h
A2251
w0
XA23(4L)
LCR
RST
GE..
1 position, TESTSIGNAL.
59
001
|
A35(P/N:
04262.66535)
posi
PHASE
0
004
|
AZAPIN:
04262.66524)
AU
ioDe:
PRL
2
o
RANGE
and
ehivk
oe
volacn
vty
1
ecar'
:
:
Check
de
signad
levels
in
sccord
with
the
table
MODE:
XA23(DL]
oc!
tage
levels
in
accord
with
:
oo
oummaees
GowoFipmesls
Betow.
Ts
the
tabie
sased?
Ing
o
Soo
IR
SlY
e
Unknown:
Open
(0pF)
DL
the
foliowing
table.
I
the
table
setisficd?
P
1.
Isolate
defective
board
04262466
shooting
Guide.
soooting
Guide.
1.
Pall
out
al!
pnnted
cireut.
o
%
Y.
CIRCUIT
MODE
3.
Connect
A22U19
pin
4
Range
boards
frou
unit.
"
by
installing
boards
one
e
Location
|
ignal
10
circut
common
(U19
)
100.0pF]
1000pF
|
10.00nF
|
100.0nF
|
10000F
YES
,;
wmaume
ser
|
emu
pin
).
Sigat
2. Are dc voltages on A9
2
Go
to
Service
Sheot
tor
4.
Ot
tion
_
XA2Z3(7L)
H
H
.
board
now
comeet?
preAatiny
©
Hunitls
cqvipped
Wi
xa211L)
|
cMS
H
L
Qs
naiog
sect
)
¢
"
both
Options
001
&
TEST
SIGNAL
i
H
°
Vi
004,
trotrouble
can
be
Location
|
signsd
2
-
ated
by
chocking
wil
L
L
isolated by choelking wi 1204z | 1k8z | 10Kz
indrvidually
instalied.
Xa2ieL)
|oomG|
L
H
|
#
H
H
2.Go to Service Sheet o
Go
10
Service
Sheet
No.
9,
Qo
to
Service
Sheet
far
xazi)
i
|
w
|
o
|
8
)
T
L
xA21(3L)
|10
'R
XAZAD
|
xazan)
D
|
xazuALy|
TIT
|
LOWLEVELSOmY):
L
A1
)
@
|
Normal
level
(1V):
H
Pyv
>
Note
YES
XA232L)
SRS
B
A
*Set 4262 FUNCTION to C APAZ (ML) &
Press
LINE
pushbutton
to
turm
in-
and
CIRCUIT
MODE
to
PRL.
strument on. Verify that 2l front
panel au::m pxl:wmn:-ml;x:lnhyd Go to Pigure 18 *Connect XA23 (CL) end
‘“”;“
does
,M'I‘,;m“
first
check
Analog
Scction
Trouble
zam
with
ashorting
the
displey
compenent
and,
if
cor
shooting
1o
Assecnbly
Level.
rect,
go
10
Figure
8-19,
Digital
Goto
Scction
Troubleshooting
Guide.
.
Dig
m's«""'h‘m
Trouble
i
shooting
Guide.
Figure 8-17. Analog and Digital Sections Isolation Procedure.
8-31

HP 4262A Specifications

General

Brand	HP
Model	4262A
Category	Measuring Instruments
Language	English