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Agilent
4291B RF
Impedance/Material
Analyzer
F
or
additional
CO
VERED
SERVICE MANU
This
number
important
BY
THIS
manual
MANU
SERIAL
applies
prex
JP1KE,
information
AL" in
NUMBERS
directly
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or
rmware
about
instruments
serial
General Information
AL
with
revision
numbers,
of
serial
01.00.
read \ANAL
this
service
YZERS
manual.
Agilent Part No. 04291-90111
Printed in JAPAN March 2001
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echnologies Company
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echnologies
Component
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est
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Japan
Ltd.
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Copyright 1998, 2000, 2001 Agilent Technologies Japan, Ltd.
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2001
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F
Third
ourth
Edition
Edition
Edition
(part
(part
(part
number:
number:
number:
04291-90111)
04291-90111)
04291-90111)
iii
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Safety Summary
The
following
service
W
ARNINGS
and
intended
The
A
gilent
with
these
,
general
and
repair
given
use
T
echnologies Company
safety
of
this
elsewhere
of
the
requirements
precautions must
instrument. F
in
this
instrument.
.
be observed
ailure to
comply with
manual violates
assumes no
liability for
during all
these precautions
safety standards
the customer's
phases of
of design,
failure
operation,
or with
specic
manufacture,
to
comply
Note
Note
Ground
This
safety earth
terminals,
cord set.
is
a
The
Safety
ground
power
Whenever
made inoperative
DO NOT
Do
not operate
electrical
Keep
Operate
instrument in
Away
From Live
4291B
in
LEDs
CLASS
comply
IEC1010-1.
in 4291B
1
LED
Instrument
Class 1
the
product (provided
must
be
source
and
to
it
is
secured
In
the
likely
An
instrument
such an
with
INST
4291B
are
are
Class
PRODUCT
provided
product
that
the
against
Explosive
in
the
presence
environment
Circuits
ALLA
TION
INDOOR
1
in
accordance
with a
from
the
input
wiring
protection
any
unintended
Atmosphere
constitutes
CA
TEGORY
USE
product.
with
protective earth
main
power
terminals
has
been
operation.
of
ammable
a
safety
II
and
IEC825-1.
terminal).
source
,
power
to
impaired,
gasses
or
hazard.
POLLUTION
An
the
product
cord,
or
supplied
the
product
fumes
.
Operation
DEGREE
2
uninterruptible
input
wiring
power
must
be
of
any
Operating
adjustments
with
with
circuits before
DO NOT Service Or A
the
the
personnel
must
power
power
cable
cable
touching them.
must
be
made
connected.
removed.
not
remove
by
qualied
Under
T
o
avoid
djust Alone
instrument
maintenance
certain
injuries
covers
conditions
,
always
Do not attempt internal service or adjustment unless
aid and resuscitation, is present.
iv
.
Component
personnel.
,
dangerous
disconnect
Do
not
power
replacement
replace
voltages
components
may
and
discharge
and
exist
internal
even
another person, capable of rendering rst
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DO
NOT
Substitute
P
arts
Or
Modify
Instrument
Because
unauthorized
Sales
Dangerous
W
arnings
this
W
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of
the
modications
and
Service
Procedure W
,
such as
manual. Instructions
danger
Oce
the
of
for
example
Dangerous
instrument.
this
instrument.
introducing
to
the
instrument.
service
and
arnings
below
contained in
voltages
Use
extreme
additional
repair
,
precede
the
warnings
,
capable
caution
hazards
Return
to ensure
potentially
must
of
causing
when
,
do
not substitute
the
instrument
the safety
dangerous
be
death,
handling,
features are
followed.
are
parts or
to a
Agilent T
procedures
present in
testing,
perform
echnologies
maintained.
throughout
this
and
adjusting
v
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Typeface Conventions
Bold
Italics
Computer
4
HARDKEYS
N
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
N
SOFTKEYS
Safety
General
5
N
N
N
N
N
N
Symbols
denitions
Instruction
necessary
Alternating
Boldface
symbols
Italic
publications
Italic
must
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the
Computer
Labeled
Softkeys located
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safety
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manual
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emphasis
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of
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product
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instruction
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copy
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front
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italics
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panel
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are
manuals are
with
manual.
F
or example:
manuals and
when
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.
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are
enclosed in
enclosed
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icons
other
name
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5
4
N
NN
NN
.
in
listed below
symbol
when it
are
variable
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.
.
is
Direct
On
O
In
Out
Frame
equipment
This
condition or the like
result in injury or death to
This
condition or the like
result in damage to or destruction of part or
This
procedure, practice, condition or the like
current.
(Supply).
(Supply).
position of
position
(or
chassis)
which normally
Warning
Caution
Note
sigh denotes important information. It calls attention to a
push-button switch.
of
push-button
terminal. A
sign
denotes
, which,
switch.
connection to
include all
a
hazard.
exposed metal
It
if not correctly performed or adhered to
personnel.
sign denotes a hazard. It calls
, which, if not
correctly performed or adhered to
the frame
(chassis) of
the
structures.
calls
attention
to
a
procedure
, practice
,could
attention to a procedure
, practice
,could
all of the product.
, which is essential to highlight.
Axed to product containing static sensitive devices use anti-static handling
procedures to prevent electrostatic discharge damage to component.
,
,
vi
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Certication
Agilent
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echnology
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This
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During
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Exclusive Remedies
The
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whether
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Assistance
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Documentation
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any
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Quick
The
to
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products
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Start
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basic
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Operation Manual(Agilent
The
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Service Oce
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Instrument
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Contents
1.
General
INTRODUCTION
ORGANIZATION
ANALYZERS
TABLE
2.
P
erformance
INTRODUCTION
GENERAL
W
Ambient Conditions
Calibration
P
Recommended
FREQUENCY
Description
Specication
T
Procedure
OSC
Description
Specication
T
Procedure
MEASUREMENT
Description
Specication
T
Procedure
DC
Description .
Specication...... .....
Test Equipment .. ...... ...... ...... ...... .... 2-17
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-17
PERFORMANCE TEST RECORD ....................... 2-20
Frequency Accuracy Test........ ...... ..... ...... . 2-20
Osc Level Accuracy Test .......................... 2-20
Information
.
.
.
.
.
.
.
.
.
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.
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.
.
.
.
.
..
..
..
.
.
.
.
OF
SERVICE
CO
VERED
OF
SERVICE
T
INFORMA
arm
Up
Time
Cycle
erformance
A
est
Equipment
.
LEVEL
est
est Equipment
Save
Analyzer
Open Measurement T
Short Measurement T
50 Measurement T
10 cm Airline with Open T
10
BIAS LEVEL A
Without Option 1D5 .......... ...... ..... ...... 2-20
WithOption1D5..... ...... ..... ...... ...... . 2-20
A
CCURA
Equipment
.
..
the Analyzer
Calibration
cm Airline with Short T
TEST
ests
.
.
.
TION
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.
T
est
Record
T
est
Equipment
CCURA
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Setup .
CCURACY TEST (OPTION 001)
...... ...... ...... ...... .
MANU
BY
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TEST
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AL
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AL
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1-1
. 1-1
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1-3
. 1-4
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2-1
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2-1
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2-1
. 2-1
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2-1
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2-1
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2-2
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2-3
.
2-3
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2-3
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2-3
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2-3
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2-5
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2-5
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2-5
. 2-5
2-5
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2-8
. 2-8
. 2-8
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2-8
.
2-8
. 2-8
.
2-11
2-12
2-12
2-13
2-13
2-15
2-17
2-17
2-17
Contents-1
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bga.png)
Norm-T
Norm-T
High-T
High-T
Measurement
Norm-T
Norm-T
High-T
High-T
DC
3.
A
djustments
INTRODUCTION
SAFETY
REQUIRED
W
ARM-UP
INSTRUMENT
ORDER
UPD
A
A
djustments
Keyboard
Controller
Updating
40
MHz
Required
Procedure
520
MHz
Required Equipment
Procedure
COMB
Required
Procedure
STEP
Required
Procedure
SECOND
Required
Procedure
SOURCE
Required
Procedure . . . . . . . . .
THIRD LOCAL V
Required Equipment . . . . . . . . . .
Procedure . . . . . . . . . . . . . . . . . . . . .
SOURCE MIXER LOCAL LEAKA
Required Equipment . . . . . . . . . . . . . . . . . . . . .
Procedure . . . . . . . . . . . . . . . . . . . . . . .
OSC LEVEL CORRECTION CONST
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-20
HOLDSTEPADJUSTMENT..... ...... ...... ...... ... 3-21
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-21
BAND PASS FILTER ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . 3-22
Required Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-22
emp High-Impedance
emp Low-Impedance
emp High-Impedance
emp Low-Impedance
Accuracy
emp High-Impedance
emp
Low-Impedance
emp
High-Impedance
emp
Low-Impedance
Bias
A
ccuracy
and
Correction
.
.
CONSIDERA
EQUIPMENT
FOR
ADJUSTMENTS
CO
VER
OF
ADJUSTMENTS
TING
Correction
Program
and
Mouse
Requirement
Correction
REFERENCE
Equipment
.
.
.
.
LEVEL
GENERATOR
PRETUNE
LOCAL
V
CXO
ADJUSTMENT
..
.
.
Equipment .
..
..
CORRECTION
Equipment
.
.
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PLL
Equipment
.
.
.
.
ADJUSTMENT
Equipment
CXO ADJUSTMENT
Test
T
T
est
T
est
T
est
.
T
T
T
est
T
est
T
est
.
.
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.
Constants
.
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.
.
TIONS
REMO
Constants
Constants
OSCILLA
.
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.
ADJUSTMENT
.
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.
LOCK
.
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AND
V
AL
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Operation
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TOR
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CONST
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ADJUSTMENT
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GE ADJUSTMENT . . . . . . . . . . . . . . .
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USING
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...... ...... ...... ......
Head .
est
Head
Head
Head
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est
Head
est
Head
Head
Head
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CORRECTION
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ANTS....................
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(Option
(Option
(Option
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(Option
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012)
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013)
014)
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013)
014)
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ADJUSTMENTS
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ANTS
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2-20
2-21
2-21
. 2-22
.
2-23
2-23
2-31
2-39
. 2-47
.
2-55
.
3-1
.
3-1
.
3-2
3-2
.
3-2
.
3-2
.
3-3
.
3-3
.
3-3
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3-4
.
3-5
.
3-6
.
3-6
3-6
.
3-8
.
3-8
.
3-8
.
3-10
3-10
.
3-10
.
3-13
.
3-13
.
3-13
. 3-14
.
3-14
.
3-14
.
3-16
.
3-16
3-16
3-17
3-17
3-17
3-18
3-18
3-18
3-20
Contents-2
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bgb.png)
Procedure
DC
BIAS LEVEL
Procedure
10
MHz REFERENCE
ONL
Y) .
Required
Procedure
4.
Overall
TROUBLESHOOTING
INSPECT
Check
Check
Check
VERIFY
Source
Receiver
Transducer
INSPECT
Check the
Check
Check
Troubleshooting
THE
the
the
Error
Troubleshooting
A2
POST
FUNCTIONAL
T
est
T
est
Equipment
Procedure
T
est
Equipment
Procedure
T
est
Equipment
Procedure
THE
the P
the mini
..
..
..
CORRECTION
..
.
.
.
OSCILLA
.
.
.
.
.
Equipment .
.
.
.
.
.
SUMMARY
POWER
F
an
.
.
.
Front
P
anel
Message
When
REGULA
.
.
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.
T
est
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T
est
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.
REAR
GPIB
arallel
P
Interface
Interface
DIN
.
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ON
SEQUENCE
.
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LEDs
.
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P
ower
TOR
T
est
GROUPS
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ANEL
Keyboard
FUNCTION
.
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CONST
.
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TOR
FREQUENCY
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On
F
ail
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Connector
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ANTS
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Self-test
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(OPTION
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ADJUSTMENT
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ONL
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Y)
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(OPTION
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1D5
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. 4-9
. 4-10
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. 4-10
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3-22
3-24
3-24
3-25
3-25
3-25
4-2
4-4
4-4
4-4
4-5
4-5
4-6
4-7
4-7
4-7
4-7
4-9
4-9
4-10
4-12
4-12
4-12
4-12
5.
Power
INTRODUCTION
ST
FIND OUT WHY THE F
FIND OUT WHY THE A50 SHUTDOWN LED IS OFF
FIND OUT WHY THE A1 +5 VD LED IS NOT ON STEADILY .......... 5-11
Supply Troubleshooting
.
.
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..
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.
.
.
ART
HERE
1.
Check
2.
Check
3.
Check
A50
SHUTDOWN
4.
Check
Measure
5. Check the Eight A2 LEDs
6. Run Internal T
1. Check the Line V
2. Check the A50 SHUTDOWN LED . . . . . . . . . . . . . . . .
1. Disconnect the Cable from the A50J1
2. Disconnect the Cable from the A51J2
3. Disconnect the Cable from A22J1 (Option 001 Only) . . . . . . . . . . . . 5-9
4. Disconnect the Cable from the A1J10 ... ..... ...... .... 5-9
5. Remove Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-10
1. Check the A40 Pre-regulator . . . . . . . . . . . . . . . . . . . . . . . 5-11
2. Check the A50 DC-DC Converter . . . . . . . . . . . . . . . . . . . . . 5-11
3. Disconnect Cables on the A1 CPU .................... 5-12
.
Error
the
the
the
the
.
.
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.
.
Messages
F
an
is
A50
SHUTDOWN
A1
+5
A1
+5
est 4: A2 POST REGULA
.
.
.
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..
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..
Rotating
LED
VD
VD
AN IS NOT ROT
oltage, Selector Switch Setting, and Fuse . . . . . . . . .
.
LED
V
oltage
.
.
LED
.
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....................
TOR .
ATING .
.... ...... ...... .
.... ...... ...... ..
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.
5-1
.
5-3
.
5-3
.
5-3
.
5-3
.
5-4
.
5-5
.
5-5
5-5
5-6
5-8
5-8
5-8
5-9
. 5-9
5-9
Contents-3
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bgc.png)
4.
Remove Assemblies
TROUBLESHOOT
1.
Troubleshoot the
2.
Troubleshoot the
TROUBLESHOOT
1.
Check the
2.
Check
3.
Remove
4.
Measure
6.
Digital
INTRODUCTION
ST
ART
1.
Check
Check
Check
2.
Check
Identify
3.
Check
4.
Check
5.
Check
6.
Check
7.
Check
TROUBLESHOOT
1.
Run
2.
Check
the
Control
HERE
the
the
the
Error
the
the
the
the
the
the
the
THE F
AN
F
an
A50
THE A2
A40
Pre-Regulator
A50
DC-DC
Assemblies
the
A2
P
ost
Troubleshooting
.
.
.
.
.
.
.
.
.
P
ower
On
5
and
4
Ch
1
A1
Eight
LEDs
Messages
the
First
F
ailed
A1
DRAM
A1
V
olatile
A30
Front
A53
FDD
A32
I-B
ASIC Interface
THE
A51
Internal
A52
T
est 3:
LCD(Liquid
..
..
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.
AND
THE
.
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.
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DC-DC
POST-REGULA
Converter
.
.
Regulator
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Sequence
4
Ch
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and
Memory
Keyboard
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GSP
Converter
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5
Operations
2
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T
est
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Flash
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and
A51 GSP
Crystal
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Output
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Memory
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A52 LCD
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A50
DC-DC
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TOR
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Display)
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CONVERTER
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. 5-14
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5-13
5-14
5-17
5-17
5-17
5-17
6-1
6-3
6-3
6-3
6-3
6-4
6-4
6-5
6-6
6-6
6-6
6-7
6-8
6-8
6-8
7. Source
INTRODUCTION
SOURCE
ST
CHECK A5 SYNTHESIZER OUTPUTS
CHECK A4A1 1ST LO OUTPUTS
CHECK AN A3A1 SOURCE VERNIER OUTPUT ................ 7-21
CHECK A3A2 2ND LO OUTPUTS . . . . . . . . . . . . . . . . . . . . . . . 7-23
CHECK A3A3 SOURCE OUTPUT .. ...... ..... ...... .... 7-27
Troubleshooting
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GROUP TROUBLESHOOTING
Start
Here .
Check
Check
Check
Check
Check
Check
Check
Check
ART
1. Check the INT REF Signal . . . . .
2. Check the FRA
3. Check the STEP OSC Signal
4. Check the 520 MHz Signal . . . . . . . . . . . . . . . .
5. Check the EXT REF Operation . . . . . . . . . . . . . . . . .
1. Check the 1st LO OSC Signal at A4A1J3
2. Check the 1st LO OSC Signal at A4A1J4 ................. 7-19
1. Check the 21.42 MHz Signal . . . . . . . . . . . . . . . . . . . . . . . 7-21
1. Check the 2nd Local Oscillator Signal .................. 7-23
2. Check the 2.05858 GHz Signal . . . . . . . . . . . . . . . . . . . . . . 7-24
A5 Synthesizer
A4A1
an
A3A2
A3A3
A7
A22
A60
HERE
..
1st
A3A1
2nd
Source
Output
DC
High
.
.
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.
Outputs .
LO
Outputs
Source
Bias
Stability
.
V
LO
Outputs
Output
Attenuator
1/2
Output
.
.
..
C N OSC Signal . . . .
.
ernier
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Control
Frequency
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SUMMARY
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Output
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Signals
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Reference
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(Option
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1D5)
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7-1
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7-3
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7-3
. 7-3
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7-3
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7-3
.
7-3
.
7-3
7-4
.
7-4
. 7-4
.
7-5
7-6
7-6
7-8
7-10
7-13
7-15
7-17
. 7-17
Contents-4
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bgd.png)
1.
CHECK
1.
CHECK
1.
CHECK
8.
Receiver
INTRODUCTION
RECEIVER
ST
ART
T
est
Procedure
9.
Transducer
INTRODUCTION
TRANSDUCER
ST
ART
T
est
Procedure
10.
Service
INTRODUCTION
SERVICE
N
N
N
NN
TESTS
N
N
N
N
N
SERVICE
N
N
N
N
N
READ
N
N
N
N
N
FIRMWARE
TESTS
N
N
N
NN
EXECUTE
N
NN
N
N
INTERNAL
N
N
N
N
N
EXTERNAL
N
N
N
N
N
ADJUSTMENT
N
N
NN
NN
DISPLAY TESTS
Test Status
Diagnostic T
Test Descriptions . . . . . . . . . . . . . . . . . . . . .
Check the
A7 OUTPUT
Check A7
A22 DC
Check A22
THE A60
HERE
Equipment
FRONT
HERE
Equipment
CABLE
High
K
N
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ID
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NN
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MENU
NN
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NN
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NN
NN
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NN
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N
NNNNNNNNNNNNNNNNNNN
INTERNAL TESTS
0: ALL INT
1: A1 CPU
2: A1 V
3: A51 GSP
4: A2 POST REGULATOR ........................ 10-9
5: A6 A/D CONVERTER .......... ...... ...... ... 10-9
6: A5 REFERENCE OSC ......................... 10-9
7: A5 FRACTIONAL N OSC . . . . . . . . . . . . . . . . . . . . . . . . 10-9
8: A5 STEP OSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-9
9: A4A1 1ST LO OSC .......................... 10-10
10:A3A22NDLOOSC.......................... 10-10
A3A3 RF
Control
BIAS
Output
HIGH
Troubleshooting
.
GROUP
.
.
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.
.
ISOL'N
Troubleshooting
.
GROUP
.
.
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.
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ISOL'N
T
emperature
ey
Menus
.
MENU
.
N
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NN
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MODES
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N
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N
NN
NN
N
N
REVISION
.
.
N
N
N
N
N
NN
NN
N
N
N
N
N
N
TEST
(
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
NNNNNNNNNNNNNNNNNNNNNNNNN
OLATILE MEMORY . . . . . . . . . . . . . . .
:DIAG:TEST:EXET
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
TESTS
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
TESTS
N
N
N
N
N
N
N
N
NN
NN
NN
NN
TESTS
NN
NN
NN
NN
NN
NN
N
N
..........
ests ....................
...... ...... ....
.................
...................
Signal .
A
TTENU
Signals
1/2
OUTPUT
V
oltages
ST
ABILITY
.
.
.
.
TROUBLESHOOTING
.
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T
est
F
ailure
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TROUBLESHOOTING
.
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T
est F
ailure Troubleshooting
T
est
Head Trouble
.
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.
.
(
:DIAG:SERV:MODE
.
.
.
N
N
N
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(
.
N
N
N
N
N
N
N
N
N
(
:DIAG:FREV?
.
.
.
..
(
:DIAG:TEST
(
:DIAG:TEST
N
N
N
N
N
N
(
:DIAG:TEST
:DIAG:TEST
...... ...
.
.
.
A
TOR
CONTROL
.
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FREQUENCY
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Troubleshooting
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0
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17
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34
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40
)
......................
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SIGNALS
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REFERENCE
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SUMMARY
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SUMMARY
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Isolation (Opt.
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{ON|1}
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013
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7-27
. 7-29
.
7-29
7-31
.
7-31
. 7-33
.
8-1
8-3
.
8-4
.
8-4
.
8-4
.
8-5
.
9-1
.
9-4
.
9-5
.
9-5
.
9-5
.
9-6
.
9-7
.
10-1
.
10-3
.
10-3
10-3
.
10-3
.
10-4
10-5
10-5
.
10-5
.
10-6
.
10-6
10-6
10-6
10-7
10-8
10-8
10-8
10-8
10-8
10-9
Contents-5
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bge.png)
11:
A3A1 DIVIDER
12:
A6 3RD
13:
A3A1 SOURCE
14:
A6 SEQUENCER
15:
SOURCE LEVEL
16:
DC BIAS
N
NN
N
N
N
N
N
N
N
N
N
N
N
N
EXTERNAL
17:
FRONT P
18:
DSK
19:
POWER SWEEP
20:
SOURCE FLA
21:
OUTPUT A
22:
RECEIVER GAIN
23:
A6 GAIN
24:
A6 V/I
25:
FRONT ISOL'N
26:
TRD LOSS
27:
CABLE
28:
TRD
29:
TRD
30:
HIGH
31:
LOW
32:
HIGH
33:
HIGH
N
N
N
N
N
N
N
N
NN
NN
N
N
N
ADJUSTMENT
34:
HOLD
35:
BPF
36:
3RD
37:
2ND
38:
SOURCE
39:
SOURCE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
DISPLAY
40:
TEST
41:
TEST
42:
TEST
43:
TEST
44:
TEST P
SERVICE
N
N
N
NN
BUS
N
NN
NN
CORRECTION
NNNNNNNNNNNNNNNNN
SYNTH
NNNNNNNNNNN
OSC
N
NNNNNNNNNNNNNNNNNNNNNN
DC BIAS
NNNNNNNNNNN
TRD
NNNN
IF
Service Modes . .
BUSMEASUREMENTMENU..... ...... ...... ...... .. 10-17
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
BUS MEAS on OFF(:DIAG:SERV:BUS:STAT {ON|OFF}
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DC BUS [OFF](:DIAG:SERV:BUS:DC<numeric>) ....... ...... 10-17
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FREQ BUS [OFF](:DIAG:SERV:BUS:FREQ<numeric>) ........... 10-17
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
AZ SWITCH on OFF(:DIAG:SERV:BUS:AZER {OFF|ON|0|1}
MODES MENU
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
MEAS [OFF]
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
...
......
NNNN
....................
LO
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
N
N
TESTS
ANEL DIA
DR
FA
TTENUA
NORMALIZER
ISOLA
ISOL'N
ISOL'N
Z HEAD
Z HEAD
TEMP
TEMP
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
N
TESTS
STEP
ADJ
V
CXO
LO
PLL
MIXER
V
N
N
N
N
N
NN
N
N
N
N
N
N
NN
NN
NN
..............
CXO
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
TESTS
P
A
TTERN
P
A
TTERN
P
A
TTERN
P
A
TTERN
ATTERN
N
NN
NN
NN
NN
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
N
CONSTANTS
.........................
...... ...... ....
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OSC
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OSC
.
.
N
N
NN
NN
.
ULT
TNESS .
..
.
.
.
TION
ITO
V
TO
..
HIGH
LOW
N
N
N
N
N
N
N
N
N
N
N
ADJ
.
.
.
LEVEL
LOCK
N
N
N
N
N
N
.
N
..
N
N
NN
NN
NN
NN
NN
...... ...... ...... ...... .
...... ..... ...... ...... ..
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G. .
ISOL'N .
LINEARITY .
TOR .
..
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V
I
..
Z HEAD
Z HEAD
N
.
.
ADJ
LEAK
LEVEL
.
1
2 .
3
4
5 .
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NN
NN
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....................
...... .
...... ...... .....
................
)............ 10-17
)..... .... 10-18
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. 10-11
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. 10-11
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. 10-11
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. 10-11
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. 10-12
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. 10-12
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....
....
10-10
10-10
10-10
10-10
10-10
10-10
10-10
10-10
10-10
10-11
10-11
10-11
10-11
10-12
10-12
10-12
10-12
10-12
10-13
10-13
10-13
10-13
10-13
10-13
10-13
10-13
10-13
10-13
10-13
10-14
10-14
10-15
10-15
10-15
10-15
10-15
10-16
10-16
10-16
10-16
Contents-6
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bgf.png)
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
Node
V
15
12.6
5
V
V
AN
A
C
V
V
V
VTUNE
INTEG
VREF
BIAS
BIAS
N
(
:DIAG:SERV:BUS:WAIT
..
.
.
alues .
Descriptions
.
.
.
.
(A
UX)
(2.025
(
0
1.92
U)
V
(
0
2.124
(
0
2.025
U)
(2.025
V
V
V
POWER
V
VTUNE
LO
OUT
LO
OUT
LO
VTUNE
LO
LO
Bus Node
.
OSC
NNNNNNNNNNNNNNNNNNNNNNNNN
U)
(2.1465
(1.8955
(A
UX)
(1.92
(2.002
(2.0605
LEVEL
VTUNE
VTUNE
VTUNE
LEVEL
.
OSC
U)
U)
(1.92
U)
U)
.
U)
(Source
VTUNE
(Detector
(Level
(Step
(Fractional N
OUT (Fractional
(Reference
(A/D
V
OL
T
A
CURRENT
.
.
.
Descriptions
.
.
.
(Source
OUT
(Divider
(Step
Oscillator)
(Reference Oscillator)
(Third Local Oscillator)
ANTS MENU
NNNNN
(
:DIAG:SERV:CCON:OLEV {NORM|FRON|OFF}
.............................. 10-30
.
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U)
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U)
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U)
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Oscillator
(Second
Output)
.
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D
A
C
Output V
(First
Oscillator
(Third
.
..
Converter
GE
.
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.
.
Oscillator)
...... ...... ...... ..... ..
(
:DIAG:SERV:CCON:DCB {OFF|ON|0|1}
<
numeric
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.
V
CO
Local
Oscillator
.
.
..
..
..
oltage) .
Local
Oscillator
V
CO
Oscillator
N
Oscillator
Oscillator V
Local Oscillator
.
.
.
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V
oltage
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Output)
Reference)
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...... ...... ...... ..
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>
)
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Tuning
..
..
Turning
V
CO
CO
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..................
V
V
CO
..
..
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.
V
CO
Turning V
V
Turning
Integrator
Tuning
V
CO
Tuning
.
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..
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..
oltage)
Tuning
.
.
oltage) .
V
.
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V
oltage)
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.
oltage) .
..
V
oltage)
Output
oltage)
V
oltage)
.
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.
). . . . . . . .
) ...... ..
) ....... 10-30
). . . . . . . . 10-30
...... ...... . 10-31
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V
oltage)
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. 10-18
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. 10-18
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. 10-24
.
.
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..
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.
.
. 10-25
.
. 10-26
10-18
10-19
10-19
10-19
10-19
10-19
10-19
10-20
10-20
10-20
10-20
10-20
10-20
10-20
10-20
10-21
10-21
10-21
10-21
10-21
10-22
10-22
10-22
10-23
10-23
10-24
10-24
10-24
10-24
10-25
10-25
10-25
10-25
10-25
10-25
10-25
10-26
10-26
10-26
10-27
10-27
10-28
WAIT
COUNT
Bus
Measurement .
Bus
Measurement Procedure
Bus
Measurement V
DC
Bus
0:
OFF .
1:
+5
2:
0
3:
0
4:
0
5:
+5
6:
+5.3
7:
+8.5
8:
+15
9:
+15
10:
+22
11:
F
12:
+65
13:
SRC
14:
2ND
15:
DET
16:
SRC
17:
D
18:
1ST
19:
STEP
20:
FN
21:
FN
22:
REF
23:
3RD
24:
3RD
25:
AD
26:
DC
27:
DC
28:
GND A22A23
29:
GND .
Frequency
0:
OFF
1:
SOURCE
2:
DIVIDER
3:
STEP
4: FN OSC (Fractional N Oscillator) . . . . . . . . . . . . .
5: REF OSC
6: 3RD LO OSC
7: SAMPLE HOLD . .
CORRECTION CONST
NNNNNNNNNNNNNN
NNNNNNNNNNNNNNNNNNNNNNNNN
OSC LVL CC [ ]
NNN
NNNNNNNNNNNNNNNNNNNNNNNNN
DC BIAS CC ON/off
Correction Constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-28
SYNTHESIZER CONTROL MENU ....................... 10-29
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
1st LO OSC [ ](:DIAG:SYNT:FLOC:MODE {AUTO|SING|TRIP}
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FN OSC [ ](:DIAG:SERV:STNT:FN:MODE {AUTO|NARR|WIDE}
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
STEP OSC [ ]
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FREQUENCY OFFSET(:DIAG:SERV:SYNT:FREQ:OFFS
Contents-7
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg10.png)
OSC
CONTROL MENU
N
NN
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
NN
NN
NN
N
N
N
N
N
N
N
OSC
AUTO man
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
OUTPUT
NN
NN
N
N
OSC DAC
N
NN
N
N
N
OSC
N
N
N
N
N
N
OSC
DC BIAS
NN
NN
N
N
DC BIAS
N
N
N
N
N
N
POLARITY
N
N
N
N
N
N
CUR
N
N
N
N
N
N
DAC
N
N
N
N
N
N
RELAY
TRANSDUCER
NN
N
N
N
N
TRD
N
N
N
N
N
N
TRD
N
N
N
N
N
N
MEAS
N
N
N
N
N
N
TEST
IF
CONTROL
N
N
N
N
N
N
IF
N
N
NN
NN
GAIN XV
N
N
N
N
N
N
GAIN
N
N
N
N
N
N
GAIN
N
N
N
N
N
N
GAIN
N
N
N
N
N
N
IF
BOOTLO
NN
N
N
N
N
SYSTEM
N
N
N
N
N
N
SYSTEM
N
N
N
N
N
N
PREVIEW
N
N
N
N
N
NN
REBOOT
NN
{AUTO|DB0|DB10|DB20|DB30|DB40|DB50|DB60}
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
N
N
N
NN
NN
NN
NN
DAC
N
N
N
N
N
N
N
NN
NN
NN
NN
N
OUT
CONTROL
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
OFST
N
N
N
N
N
.
N
N
N
N
N
NN
NN
NN
NN
N
N
N
ON
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
ATT
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
RANGE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
[
N
N
N
N
N
N
N
N
N
NN
NN
NN
N
HEAD
N
N
NN
NN
N
N
N
N
N
N
N
N
N
N
GAIN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
XI
N
N
N
N
N
N
N
N
N
N
N
NN
N
N
N
Y
N
N
N
N
N
N
N
NN
N
N
N
N
N
N
N
Z
N
NN
N
N
N
N
N
N
N
N
BW
ADER
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
NN
NN
NN
N
N
N
N
N
NN
NN
NN
N
N
N
N
N
NN
NN
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N
N
N
N
N
N
N
N
N
NN
NN
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N
N
N
N
N
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N
N
N
N
ATT
NN
N
N
NN
N
N
N
]
N
N
N
N
N
[
N
[
N
UPDATE
BACKUP
N
NN
[
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
AUTO
NN
NN
N
N
N
N
N
N
N
N
N
N
N
VALUE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
ON
off
NN
NN
NN
N
N
N
N
N
N
N
N
N
N
AUTO
NN
N
N
N
N
N
N
N
N
N
N
N
N
[
]
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
[
]
.
.
.
.
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
off
CONTROL
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
AUTO
N
NN
N
N
N
(
:DIAG:SERV:TRAN:RANG
N
N
N
(
:DIAG:SERV:TRAN:SENS:FUNC
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
[
]
MENU
N
N
N
N
N
N
N
N
N
N
NN
NN
N
N
AUTO
N
N
N
N
NN
NN
N
N
N
N
[
]
(
NN
N
N
N
N
N
N
N
N
N
N
[
]
(
N
N
N
N
N
N
N
N
N
]
(
:DIAG:SERV:IF:GAIN:Y
N
N
N
N
N
N
N
N
N
]
(
:DIAG:SERV:IF:GAIN:Z
.
..
..
MENU
NN
NN
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
NN
DISK
..
..
..
..
.
.
.
.
.
(
:DIAG:SERV:SOUR:MODE
NN
NN
]
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:DIAG:SERV:SOUR:ATT
N
N
N
NN
NN
NN
NN
man
(
:DIAG:SERV:SOUR:LEV:DAC:MODE
NN
(
:DIAG:SERV:SOUR:LEV:DAC:VAL
NN
NN
(
:DIAG:SERV:SOUR:STAT
MENU
N
N
N
N
N
N
N
N
N
NN
man
(
:DIAG:SERV:DCB:POL
(
:DIAG:SERV:DCB:OFFS
.
(
:DIAG:SERV:DCB:STAT
N
N
N
N
N
NN
NN
NN
man
N
N
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:DIAG:SERV:TRAN:THE
N
N
N
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N
N
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man
:DIAG:SERV:IF:GAIN:X:XV
:DIAG:SERV:IF:GAIN:X:XI
N
N
.
N
N
.
.
..
.
.
.
.
.
.
.
(
:DIAG:SERV:DCB:MODE
.
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MENU
(
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.
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..
N
(
:DIAG:SERV:IF:GAIN:MODE
.
.
.
.
.
.
.
.
.
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.
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.
.
.
..
.
.
.
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.
.
.
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..
.
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.
{AUTO|EXP|NORM}
.
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.
.
.
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.
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..
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{AUTO|MAN}
{OFF|ON|0|1}
.
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.
.
{AUTO|MAN}
{AUTO|POS|NEG}
{AUTO|POS|NEG}
..
.
{OFF|ON|0|1}
.
.
.
.
{AUTO|MAN}
{IMP|VOLT|CURR|VIR}
{HIMP|LIMP|HTHI|HTLI}
.
.
.
.
{DB0|DB6|DB12}
{DB0|DB6|DB12}
{DB0|DB6|DB12|DB18}
{DB0|DB2|DB4|DB18}
.
.
.
.
.
.
.
.
.
.
.
.
..
..
.
.
.
.
.
.
.
.
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.
.
)
.
.
.
{AUTO|MAN}
<
numeric
.
.
.
.
.
)
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.
.
.
.
.
)
.
.
.
.
.
.
)
.
.
.
.
.
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.
.
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..
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..
..
..
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. 10-32
. 10-32
. 10-32
.
10-33
10-33
10-33
.
10-34
.
10-35
.
10-35
. 10-35
.
10-35
.
10-36
.
10-37
.
10-38
.
10-38
.
10-39
10-39
. 10-40
.
10-41
.
10-41
.
10-41
10-41
.
10-41
.
10-42
.
10-43
.
10-43
.
10-43
.
10-44
.
10-44
11. Theory
O
VERALL
ANALYZER FUNCTIONAL GROUPS . . . . . . . . . . . . . . . . . . . .
POWER SUPPL
DIGITAL CONTROL OPERATION ... ...... ..... ...... ... 11-8
Contents-8
of Operation
ANALYZER
Y OPERA
Line P
ower Module
A40 Preregulator
A50 DC-DC Converter
Switching Regulator 1
Switching Regulator 2
Regulated +5V Digital Supply (+5 VD)
A50 Shutdown LED ........................... 11-5
A2 Post-Regulator ...... ...... ...... ...... ..... 11-6
Shutdown Circuit .... ...... ..... ...... ...... . 11-6
Eight Status LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-6
A7 Output Attenuator Drive Circuit . . . . . . . . . . . . . . . . . . . . 11-7
A1CPU........ ...... ...... ..... ...... ... 11-10
OPERA
.........
TION
TION . . . .
......
........
...... ...
...... ....
.
.
.... ...... ...... .....
......................
.
.
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..
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.
...... ..... ...... ...
...................
...... ...... .....
................
...... ...... .....
.
.
..
. 11-1
11-2
11-3
11-5
11-5
11-5
11-5
11-5
. 11-5
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg11.png)
A30
Front-Panel
A31
I/O Connector
A32
I-BASIC
A51
GSP .
A52
LCD (Liquid
A53
FDD .
A54
Inverter
SOURCE
A5
Synthesizer
REF
FRA
C
STEP
Multiplier
A4A1
A3A1
A3A2
A3A3
A7
A22/A23
RECEIVER THEORY
A4A2
A6
TRANSDUCER
T
A41
1st
1st
Local
Single-Loop
Triple-Loop
Source
Divider
Source
Level
2nd
2nd
LO
Source
Source
Output
Receiver RF
Receiver IF
Third
Third
Sample/Hold
Gains
est
Heads
TRD
Gv/Gi
V/I
Multiplexer
Control
Interface
.
.
.
.
.
THEORY
OSC
.
.
N
OSC
OSC
.
.
(
2
13)
LO
.
OSC
Circuit
Operation
Operation
V
ernier
.
.
.
OSC
.
V
ernier
LO
.
.
.
.
First
Mixer
.
Attenuator
DC
Bias
Local Oscillator
Converter .
and A/D
X,
Y
,
and
THEORY
.
.
Amplier
A
TT
and
.
.
.
Keyboard .
.
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Crystal
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Z
.
Level
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Display)
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Frequency
Frequency
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Spans
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45
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. 11-10
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. 11-11
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. 11-18
. 11-18
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. 11-22
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11-10
11-10
11-11
11-11
11-11
11-12
11-14
11-14
11-14
11-15
11-16
11-16
11-16
11-16
11-16
11-17
11-17
11-17
11-17
11-18
11-18
11-19
11-19
11-20
11-22
11-22
11-22
11-23
11-23
11-24
11-26
11-27
11-27
11-28
11-28
12. Replaceable P
INTRODUCTION . . . . . . . . . . .
ORDERING INFORMA
Direct Mail Order System . . . . . . . . . . . . . . . . . .
EXCHANGE ASSEMBLIES
REPLACEABLE P
Top View Assemblies . . . . . . . . . . . . . . . . . . . . .
BottomViewAssemblies.. ..... ...... ...... ...... . 12-10
Front Assembly Parts ...... ...... ...... ...... ... 12-16
Rear Assembly Parts............................ 12-21
Miscellaneous Parts ............................ 12-23
Test Station and Test Head Parts ...................... 12-28
High Temperature Test Head Parts (Option 013 and 014) ........... 12-30
arts
TION...................
ARTS LIST
...... ...... ...... ..
.......
...... ..
...... ...... ...... ...
...... ...... ...... .
......
...... .
.....
12-1
12-1
12-1
12-2
12-2
12-4
Contents-9
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg12.png)
13.
Replacement Procedures
INTRODUCTION
TOP
COVER
T
ools Required
Procedure
BOTTOM
T
ools
Procedure
SIDE
T
ools
Procedure
FRONT
T
ools
Procedure
REAR
T
ools
Procedure
A1
T
ools
Removal
Replacement
A2
T
ools
Removal
A3A1
T
ools
Removal
A4 FIRST
T
ools Required
Removal
A5
T
ools Required
Removal
A6
T
ools
Removal
A7
T
ools
Removal
A22
Tools Required . . . . . . .
Removal Procedure
A30 KEYBO
Tools Required . . . . . . . . . .
Removal Procedure
A40 PREREGULA
Tools Required . . . . . . . . . . . . . . . . . . . . .
Removal Procedure
A41 TRD AMP REPLACEMENT........ ...... ..... ..... 13-13
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-13
Removal Procedure ............................ 13-13
A50 DC-DC CONVERTER REPLACEMENT.. ...... ...... ..... 13-15
Tools Required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
Removal Procedure ............................ 13-15
A51 GSP REPLACEMENT .. ...... ..... ...... ...... . 13-15
COVER
Required
CO
VER
Required
P
ANEL
Required
P
ANEL
Required
CPU
REPLA
Required
Procedure
POST
REGULA
Required
Procedure
Source
Required
Procedure
LO/RECEIVER
Procedure .
SYNTHESIZER REPLA
Procedure .
RECEIVER
Required
Procedure
OUTPUT
Required
Procedure
DC
BIAS
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REMO
V
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CEMENT
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Procedure
TOR
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V
ernier
,
A3A2 SECOND
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IF
REPLA
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A
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AND
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1/2
and
A23
ARD REPLA
TOR REPLA
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REPLA
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A8
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CEMENT
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RF
REPLA
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CEMENT .
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3
dB
A
TT
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DC
BIAS 2/2
........................
CEMENT . . . . . . .
CEMENT . ..... ...... ......
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LO,
AND
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SOURCE
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REPLA
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. 13-10
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13-1
13-1
13-1
13-1
13-1
13-1
13-1
13-2
13-2
13-2
13-2
13-2
13-2
13-3
13-3
13-3
13-3
13-3
13-3
13-4
13-5
13-5
13-5
13-6
13-6
13-6
13-8
13-8
13-8
13-9
13-9
13-9
13-9
13-9
13-9
13-10
13-10
13-11
13-11
13-11
13-12
13-12
13-12
13-12
13-12
13-12
Contents-10
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg13.png)
T
ools Required
Removal
Replacement
A52
Removal
A53
T
ools
Removal
A60
T
ools
Removal
TEST
T
ools
Replacement
CENTER
14.
P
ost
INTRODUCTION
POST
FIRMW
Ordering
Installing
A.
Manual
Introduction
Manual
Serial
Procedure .
LCD REPLA
Procedure .
FDD REPLA
Required
Procedure
FREQ
REF
Required
Procedure
HEAD
Required
CONDUCTOR
Repair
REP
AIR
ARE
INST
the
the
Changes
Changes
Number
REPLA
Procedures
PROCEDURES
.
..
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.
Procedure .
CEMENT
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CEMENT
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REPLA
Procedure
Firmware
Firmware
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ALLA
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COLLET
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TION
Diskette
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. A
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13-15
13-15
13-15
13-16
13-16
13-16
13-16
13-16
13-16
13-16
13-16
13-17
13-17
13-17
13-17
14-1
14-1
14-3
14-3
14-3
A
-1
-1
A
-2
B
. P
ower
Requirement
Replacing
Fuse
Selection
P
ower
Requirements
P
ower
Messages
Error
Messages in
Error
Messages in
Index
Cable
Fuse
.
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Alphabetical Order
Numerical Order
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B-1
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B-1
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B-2
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. B-2
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Messages-1
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.Messages-7
Contents-11
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg14.png)
Figures
1-1. Serial
2-1. Frequency
2-2. OSC
2-3. Measurement
2-4. Sweep
2-5.
2-6.
2-7.
3-1.
3-2. 40
3-3.
3-4. 520
3-5. 520
3-6. Comb
3-7. Comb
3-8. Comb
3-9.
3-10.
3-11.
3-12.
3-13.
3-14.
3-15.
3-16.
3-17.
3-18.
3-19.
3-20.
3-21.
4-1.
4-2. Front
4-3. Source T
4-4. Transducer T
5-1. P
5-2. A50 SHUTDOWN LED Location . . .
5-3. A1 +5 VD LED Location . .
5-4. Eight A2 LED Locations
5-5. Displayed T
5-6. Removing Line Fuse . . . . . . . . . . . . . . . .
5-7. A40J1 Output Voltage .. ...... ...... ...... ...... . 5-11
5-8. A1 CPU Connector Locations . . . . . . . . . . . . . . . . . . . . . . . . 5-12
5-9. Fan Troubleshooting Setup . . . . . . . . . . . . . . . . . . . . . . . . . 5-14
5-10. A50 DC-DC Converter Troubleshooting Setup ... ..... ...... .. 5-15
5-11. A2 Output Voltage Measurement Setup ................... 5-18
5-12. Power Supply Block Diagram 1 . . . . . . . . . . . . . . . . . . . . . . . 5-20
5-13. Power Supply Block Diagram 2 . . . . . . . . . . . . . . . . . . . . . . . 5-21
Number
Level
List for
10
cm
Airline
10
cm
Airline
DC
Bias
Level
Updating
MHz
Reference
40
MHz
Reference
MHz
MHz Level
Generator
Generator
Generator
Second
Second
Source
Third
Source
Source
OSC
Hold
Band
Band
DC
10
10
Overall Troubleshooting
ower Supply Lines Simplied Block
Local
Local
V
Local
Mixer
Mixer
Level
Step
P
ass
P
ass
Bias
Level Correction
MHz
Reference Oscillator
MHz
Reference Oscillator
P
anel
est Setup ................
Plate
A
ccuracy
A
ccuracy
Accuracy
Measurement
with
with
A
ccuracy
Correction
Level
A
A
PLL
PLL
CXO
A
djustment
V
CXO
Local
Leakage
Correction
A
djustment
Filter
A
Filter
A
LEDs
est Setup
est Result
.
.
T
est
T
est
T
est
Open
Short
T
Constants
Oscillator
Oscillator
djustment
djustment
A
djustment
A
djustment
Output
A
djustment
A
djustment
A
djustment
Leakage
A
djustment
Constants
Location
djustment
djustment
Flow .
.
.
.
.
...... ...... ..
.
.
.
.
Setup
Setup
Measurement
Measurement
est
Constants Setup
.
.
Setup
A
ccuracy
Setup
Setup
Frequency
Frequency
Location
Setup
Setup
Location
.
.
.
.
Location
Setup
Location
Location
A
djustment
.
Setup
Location
Frequency A
Frequency A
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djustment
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djustment
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djustment Location
djustment Setup
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Diagram ................
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. 2-9
. 2-10
. 2-14
. 2-15
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. 3-11
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. 4-10
1-3
2-4
2-6
2-18
3-5
3-6
3-7
3-8
3-9
3-10
3-12
3-14
3-15
3-16
3-17
3-18
3-19
3-20
3-21
3-22
3-23
3-24
3-25
3-26
4-3
4-4
4-7
5-2
5-4
5-5
5-6
5-7
5-8
Contents-12
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg15.png)
5-14.
Power
6-1.
Digital Control
6-2.
A1 Eight
6-3.
Bootloader Display
7-1.
Source Group
7-2.
INT REF
7-3.
Typical
7-4.
Typical
7-5.
FRA
7-6.
FRA
7-7.
STEP
7-8.
Typical
7-9.
Typical
7-10.
520
7-11.
EXT
7-12.
A5J4
7-13.
1st
7-14.
Typical
7-15.
Typical
7-16.
1st
7-17.
21.42
7-18.
Typical
7-19.
2nd
7-20.
Typical
7-21.
2.05858
7-22.
Typical
7-23.
A3A3
7-24. A7
7-25.
A22 Output
8-1.
Receiver Group
8-2.
Receiver Group
8-3.
A6 GAIN
9-1.
Transducer Group
9-2.
Transducer
9-3.
Transducer
9-4.
T
9-5.
Cable
10-1.
Service
10-2.
Service
10-3.
T
10-4. T
10-5. Service Modes Menu . . . . . . .
10-6. Bus Measurement Menu
10-7. F
10-8. 1st LO VTUNE Typical Trace . . . . . . . . . . . . . . . .
10-9. FN VTUNE Typical Trace
10-10. FN INTEG OUT Typical Trace
10-11. Correction Constants Menu . . . . . . . . . . . . . . . . . . . . .
10-12. Synthesizer Control Menu ......................... 10-29
10-13. OSC Control Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-32
10-14. DC Bias Control Menu ........................... 10-34
10-15. TRD Control Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-37
10-16. IF Control Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-40
10-17. Bootloader Menu ........... ..... ...... ...... . 10-43
11-1. Analyzer Simplied Block Diagram ...... ...... ...... ... 11-1
Supply Block
LEDs'
T
est
Setup
INT
REF
FRA
C
C
N
OSC
Signal
C
N
OSC
Typical
OSC
T
est
STEP
OSC
520
MHz
MHz
Signal
REF
T
est
Location
LO
OSC
Signal
1st
LO
1st
LO
LO
OSC
Typical
MHz
Signal
21.42
MHz
LO
OSC
T
est Setup
2nd
Local
GHz
Signal
2.05858
RF
Signal
Output
est
Station
ests
est Status on the Display
an P
Attenuator
V
oltages
Test
Group
Group
Connectors
Isolation
Key
Menus
Menu
Menu
ower Typical Trace . . . . . .
.
Diagram 3
Group
Block
N
Setup
Setup
.
OSC
OSC
Location
Check
.
.
Simplied
P
attern
Signal
OSC
Signal
Signal
T
est
.
T
est
T
est
Signal
Oscillator
GHz
T
est
Block
Troubleshooting Flow
Block Diagram
Block
Troubleshooting
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Diagram
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Signal
Level
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Signal
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at
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Setup
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Setup
Signal
Signal
Signal
T
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(Single
(Triple
(Single
Setup
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..
est Setup
Signal
Setup
Control
Check
Diagram
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Diagram
Locations
P
oints
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Mode)
Mode)
Mode)
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(1
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Flow
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Bus
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A4A1J3
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Measurement
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A4J4
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5-22
6-2
.
6-3
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6-5
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7-2
.
7-7
.
7-8
7-9
.
7-9
.
7-10
.
7-11
.
7-12
.
7-14
.
7-14
.
7-15
.
7-16
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7-17
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7-18
.
7-19
.
7-20
.
7-21
.
7-22
7-23
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7-24
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7-25
.
7-26
.
7-27
. 7-29
. 7-31
8-2
.
8-3
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8-4
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9-2
.
9-3
. 9-4
.
9-5
.
9-7
.
10-1
. 10-3
.
10-5
10-6
10-15
10-17
10-21
10-22
10-23
10-24
10-27
Contents-13
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg16.png)
11-2.
Power
11-3.
A2 Eight
11-4.
Digital Control
11-5.
Source Simplied
11-6.
Receiver Simplied
11-7.
Transducer Simplied
11-8.
High
11-9.
Low
11-10.
11-11.
12-10.
12-11.
12-12.
12-13.
12-14.
12-15.
12-16.
12-17.
12-18. ID
Source
Receiver
12-1.
T
12-2.
T
12-3.
T
12-4.
Bottom
12-5.
Bottom
12-6.
Bottom
12-7.
Front
12-8.
Front
12-9.
Front
Front
Front
Rear
Rear
Miscellaneous
Miscellaneous
Miscellaneous
T
13-1.
A1 EEPROM
13-2.
A2 P
13-3.
A3 Replacement
13-4.
A3A1, A3A2,
13-5.
A4 First
13-6.
A7
13-7.
A22/A23
13-8.
A40
13-9.
A41
14-1.
Firmware
14-2.
Bootloader
A
-1.
Serial
B-1. P
Supply Functional
Status
Impedance
Impedance
Group
and
op
View
1
op
View
2
op
View
3
View
View
View
Assembly
Assembly
Assembly
Assembly
Assembly
Assembly
Assembly
est
Station
Connector
ost
Regulator
Lo/Receiver RF
Input
A
DC
Preregurator
TRD
Amp
Number
ower Cable Supplied
LED
Group
Measurement
Measurement
Block
Transducer
(Major
(RF
Flexible
(Wires
1
(Major
2
(RF
3
(Miscellaneous
P
arts
P
arts
P
arts
P
arts
P
arts
P
arts
P
arts
P
arts
P
arts
P
arts
and
T
est
Wiring
Location
..
and A3A3
TT
and
Bias
Replacement
Revision
Menu
Display
Plate
Block
Assemblies)
and
Replacement
A8
Replacement
Replacement
Label
Group,
.
.
.
,
Simplied
Diagram
Block
Diagram
Block
Diagram
Groups
and
Misc
.
Assemblies)
Cables
,
and
1/5
(Outside)
2/5
(Inside)
3/5
(Inside)
4/5
(Inside)
5/5
(Inside)
1
(Outside)
2 (Inside)
1
(Side Viwes)
2
(Chassis) .
3
(On
A5)
Head P
.
.
.
.
.
.
.
.
Replacement
Replacement
3
dB
A
.
.
.
.
..
.....
Simplied
.
.
.
.
.
Block
.
.
.
Diagram
Block
Diagram
Block
Diagram
.
.
.
.
Block
.
.
.
RF
Semi-rigid
P
arts)
.
.
Wires)
P
arts)
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arts
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TT
Replacement
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...... ...... ...... ....
Block
.
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Diagram
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Diagram
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Cables)
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. A
11-4
11-7
11-21
11-26
11-27
11-29
11-30
12-4
12-6
12-8
12-10
12-12
12-14
12-16
12-17
12-18
12-19
12-20
12-21
12-22
12-23
12-24
12-25
12-28
12-34
13-4
13-5
13-6
13-7
13-8
13-10
13-11
13-13
13-14
14-3
14-4
-2
B-3
Contents-14
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg17.png)
T
ables
1-1. Recommended
2-1.
T
est
Setting
2-2.
T
est
Setting
2-3. DC
2-4. DC
3-1. Required
4-1. Troubleshooting
4-2.
4-3.
5-1.
5-2.
7-1. STEP
7-2.
7-3.
7-4.
7-5.
9-1.
10-1.
10-2.
11-1.
11-2.
11-3.
12-1.
12-2.
12-3.
12-4.
12-5.
12-6.
12-7.
12-8.
12-9.
12-10. Front Assembly P
12-11. Front Assembly P
12-12. Front Assembly P
12-13. Front Assembly P
12-14. Front Assembly P
12-15.
12-16. Rear
12-17. Miscellaneous
12-18. Miscellaneous Parts 2 (Chassis) .. ...... ...... ..... .... 12-24
12-19. Miscellaneous Parts 3 (On A5) .. ...... ...... ...... ... 12-25
12-20. Miscellaneous Parts 4 (Other Shields) ...... ...... ...... .. 12-26
12-21. Miscellaneous Parts 5 (Accessories) ..................... 12-27
12-22. Test Station and Test Head Parts ...................... 12-29
12-23. High Temperature Test Head Parts ...... ...... ...... ... 12-30
12-24. High Temp.Test Heads Parts (Fixture Side, Option 013) ........... 12-31
Bias
V
Bias
Current
Source
T
A50
P
A3A3
A7
.
.
T
T
Typical
STEP
Osc
TRD
Manufacturers
List
T
T
T
T
Bottom View
Bottom View
Bottom View
Rear Assembly P
T
est
est
Head
P
ower
ower
Supplies
OSC Frequency
RF
Attenuation
.
.
.
.
.
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est
Head
est
Status
STEP
OSC
Level
Amplier
of
Abbreviations
op
View
op
View
op
View
op
View
Assembly P
Test
Equipment
for
Normal
for
High
T
emperature
oltage
Binaries
Signal
.
.
1
2
3
3
A
ccuracy
A
ccuracy
.
.
Information
Settings
T
ests
Supplies
.
.
.
.
T
ests
T
erms
VTUNE
Frequency
Setting
Gain
Code
(Major Assemblies)
(RF Flexible
(Wires)
(Misc
1 (Major
2(RF
3 (Miscellaneous
Parts 1 (Side Viwes)
.
List
.
.
on
A2
P
T
est
Settings
T
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Settings
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List
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vs
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A7
Settings
List
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Parts)
Assemblies) .
Semi-rigid Cables
arts 1/5 (Outside)
arts 2/5 (Inside) . . . . . . .
arts 3/5 (Inside) . . . . . . . . . . . . . . . . .
arts 4/5 (Inside) . . . . . . . . . . . . . . . . .
arts 5/5 (Inside) . . . . . . . . . . . . . . . . . .
arts 1 (Outside)
arts 2 (Inside)
.
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T
emperature
T
T
est
Settings
T
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Settings
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for
Internal
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. 1-4
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. 12-9
. 12-9
. 12-11
.
.
. 12-15
. 12-23
2-7
2-7
2-19
2-19
3-4
4-6
4-8
4-11
5-16
5-19
7-13
7-28
7-30
7-32
7-32
9-6
10-7
10-23
11-15
11-19
11-28
12-2
12-3
12-5
12-7
12-13
12-16
12-17
12-18
12-19
12-20
12-21
12-22
Contents-15
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg18.png)
12-25.
12-26.
12-27.
14-1.
A
-1. Manual
A
-2. Manual
B-1.
High T
High T
High T
Post
Repair
Fuse
emp.
Test
emp
.
T
emp
.
T
Procedures
Changes
Changes
Selection
est
est
Heads
Heads
Heads
by
by
.
.
P
arts
P
arts
P
arts
.
.
Serial
Number
Firmware
.
.
.
.
(Fixture
(T
est
(Fixture
.
.
.
V
ersion
.
.
.
Side
Station
Stand)
.
.
.
.
.
.
.
.
..
,
Side
.
.
.
Option
, Opt.
.
.
.
.
..
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.
.
.
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.
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.
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013 and
..
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..
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..
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.
..
..
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.
..
. 12-33
.
.
.
..
..
.
.
12-32
12-34
14-1
A
-1
A
-1
B-1
Contents-16
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg19.png)
1
General
Information
INTRODUCTION
The
Service
manual
analyzer
Manual
contains
.
is a
information
ORGANIZATION
This
manual
This
section
appendices
P
erformance
A
djustments
after
constants
using
Note
lists
.
repair
stored
the
adjustment
consists
the
T
ests
and
or
replacement
The
of
names
.
Correction
in
the
next
guide to
required to
OF
the
chapters
of
Provides
EEPROM
program
six
chapters
servicing the
performance test,
SERVICE
and
appendices
the
tabs
and
the
procedures
Constants
of
an
assembly
on
the
(PN
04291-65003).
are
4291B
MANU
the
describes
required
.
Provides
.
Some
A1
CPU.
The
the
troubleshooting
RF
Impedance/Material
adjust, troubleshoot,
AL
listed
below
.
content
to
performance
procedures
of
the
for
adjustments
correction
chapters
They
are
of each
adjusting
update
constants
.
Analyzer
and repair
divided
chapter and
test
the
analyzer
the
analyzer
the
are
updated
.
The
by
tabs
.
the
.
correction
by
the
Overall
procedures
each
P
ower
Digital
Troubleshooting.
to
functional
Supply
isolate
Troubleshooting
group
the
are
faulty
Control Troubleshooting
Outlines
functional group
contained
the analyzer
in the
Source Troubleshooting
Receiver Troubleshooting
Transducer Troubleshooting
Note
Service Key Menus.
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE MENU
The following chapters are
Documents the functions of the menus accessed from
. These menus allow you to test, verify, adjust, control, and troubleshoot the
, for the most part, reference material.
analyzer. GPIB service mnemonics are included.
troubleshooting, and
.F
aulty assembly
remaining trouble
provides troubleshooting
isolation
procedures
shooting chapters
4
System
General Information 1-1
for
.
5
,
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg1a.png)
Theory of
Operation.
functional groups
,and
Explains
the overall
the operation
of each
operation of
the analyzer
functional group
,
the
division
into
.
Replaceable
Parts
.
miscellaneous chassis
Replacement
certain assemblies
P
ost-R
epair
adjustments
of
each
Appendices.
compatible with
Messages
Procedures.
Procedures
and
assembly
Contains
.
Contains
have to
verication
.
earlier
Provides
parts,
Provides procedures
be
.
Contains
the
shipment
the
service
part
numbers
together with
replaced.
the
procedures
manual
changes
congurations
related
and
the
table
that
information
error
illustrations
ordering
to
disassemble
of
related
must
be
of
the
message
of
the
information.
portions
service
procedures
performed
(required
analyzer)
list.
replaceable
of
after
repair
to
make
and
the
the
.
This
or
this
power
assemblies
analyzer
is
a
when
table
replacement
manual
requirements
and
of
.
1-2 General Information
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg1b.png)
ANALYZERS
COVERED
BY
MANUAL
Agilent
serial
serial
T
echnologies
number
prex
instruments
sux
is
assigned
apply
to
instruments
title
page
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An
instrument
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that
instrument
instrument
manual
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part
how
plate
and
the
.
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prex
sequentially
manufactured
is
not
listed
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dierent
may
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to
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last
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after
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Manual
manual
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serial
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the
title
page
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rear panel.
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SERIAL NUMBERS
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data and
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page
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the
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Manual
General Information 1-3
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TABLE
The
rst
part
troubleshoot
item,
and
the
substituted
In
addition
T
orx
screwdriver
P
ozidriv
P
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IC
extractor
Open-end
Open-end
T
orque
wrench, 3/4
Hex
socket,
Flat
edge
OF SERVICE
of
Table
1-1 lists
the
analyzer
.
The
recommended
if
the
equipment
to
the
test equipment
,
T15
screwdriver
screwdriver
wrench,
wrench,
,
pt
size
,
pt
size
1/4 inch
5/16 inch
inch, 136
7/32 inch
(5.5 mm)
screwdriver
T
able
TEST EQUIPMENT
all of
table
models
meets
listed in
the equipment
also notes
.
Equipment other
or
exceeds the
Table
required to
the use
critical specications
1-1,
#1 (small)
#2 (medium)
N-cm
1-1.
Recommended
T
est
and critical
than the
the
following
Equipment
performance test,
adjust, and
specications of
recommended models
.
tools
are
also
required:
each
may be
Equipment Critical
Computer HP
B
ASIC
Mass
Operating
Storage
System
Program 4291B
P
erformance
Frequency
Frequency
T
est
Kit
Counter
Standard
4
9000
Series
Revision
3.5
No
5.0
inch
Micro
A
djustments Program
substitute
Frequency
Error:
Frequency:
0
6
10
1
2
10
Range:
6
1.9
/year
or
2
10
200/300
above
oppy
10
MHz,
Spectrum Analyzer Frequency Range:
Power
Meter
No substitute 436A Opt.
Specications
2
Disk
Drive
20
MHz
7
/year
Time
to
Base
to 4
0
100 kHz
(3.5
1
inch)
GHz,
Error:
GHz
Time
Recommended
Agilent
PN
04291-18010
P
art
Model/
Number
16190A 1 P
Base
5343A
Opt.
001
3
5061B 1 A
8566A/B 1 A, T
022
,
437B
,
or
Qty Use
1 A
1 A
1 A
1 A
1 P
1 P,
438A
P
ower Sensor
Multimeter V
Frequency
+5
dBm
oltage
Range:
Voltage A
to
ccuracy:<6
Current Range:
Current A
Oscilloscope Band width
Range: 20
0
20 dBm
0
40
Vdc
0
100 mA
ccuracy:<6
100 MHz
MHz to
1.8 GHz,
to
+40
0.02%
dc to 100 mA
0.1%
Power:
Vdc
dc
8482A 1 P
3458A 1 P
54111D 1 T
Oscilloscope Probe Impedance: 1 M 10431A 1 T
,
A
A
,A
,
A
1
1
P: P
erformance T
2
Excluding HP 9826A
3
Option 001 (optional time base) is required for performance testing an analyzer equipped with option 1D5.
4
Required for adjusting an analyzer equipped with Option 1D5.
ests,A: A
djustments
and Correction Constants
, T: Troubleshooting
1-4 General Information
![](/html/88/88bc/88bc21c0348f6985b58de68b51b09be9299fe0028f7bfd3c92617c700cb8b91b/bg1d.png)
T
able 1-1.
Recommended T
est Equipment
(continued)
Equipment Critical
Cables TRD
Type-N cable
BNC
BNC
GPIB
BNC(f)-SMA(f)
SMC(f)-BNC(f)
SMB(f)-BNC(f)
N(m)-BNC(f)
SMA(m)-BNC(f)
SMA(m)-SMA(f)
APC3.5(m)-APC3.5(f)
APC7-N(f)
BNC(f)-SMA(m)
BNC(f)-Banana
1
The
11851B
2
The
85032B
includes
three
includes two
N(m)-N(m)
APC7-N(f)
cable
cable,
cable
cable
,50
61
cm,
,
122
adapter
adapter
adapter
adapter
adapter
cables
adapters
Specications
50
cm,
50
,
,
,
,
50
adapter
right
angle
adapter
,
50
adapter
adapter
of
.
61
50
50
50
,
50
50
adapter
cm
,A,
,
A,
1
T
T
Recommended
Agilent P
PN
04291-65001
11500B or
PN
8120-1839
PN
8120-1840
art
part of
Model/
Number
11851B
1
Qty Use
1 T
4 A, T
3 P
2 P
10833A/B/C 3 A
PN
1250-0562
PN
1250-0832
PN
1250-1236
PN
1250-1476
PN
PN
PN
11524A
PN
PN
cable
1250-1548
1250-1741
1250-1866
or
part
1250-1548
1251-2277
of
88
cm.
of
85032B
,
50
,
50
and
a
N(m)-N(m)
1 P
,
A
1 A
1 A
2 P
,
A,
T
1 T
1 T
1 P
,
A
2
1 P
1 A
1 P
,
A
General Information 1-5