
2.
If
the
analyzer
malfunction
relates
to
a
particular
frequency
or
range
,
look
more
closely
at
the
comb
tooth
there
.
A
djust
the
spectrum
analyzer
span
and
bandwidth
as
required.
Even
at
3
GHz,
the
comb
should
look
as
clean
as
Figure
7-24.
F
or
Option
006
instruments
at
6
GHz
the
comb
tooth
level
should
be
approximately
046
dBm.
Figure
7-24.
High
Quality
Comb
T
ooth
at
3
GHz
3.
If
the
signal
at
the
A7
output
is
correct,
check
the
A7-to-A4
cable
.
4.
If
the
signal
is
not
as
clean
as
Figure
7-24,
observe
the
HI
OUT
input
signal
to
the
A7
assembly
.
a.
On
the
network
analyzer
,
press
4
SYSTEM
5
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MENU
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MODES
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
PLL
AUTO
OFF
.
Otherwise
do
not
readjust
the
instrument.
Remove
the
A14-to-A7
SMB
cable
(W9)
from
the
A7
pulse
generator
assembly
.
(CW
16
MHz).
b.
Set
the
spectrum
analyzer
to
a
center
frequency
of
45
MHz
and
a
span
of
30
MHz.
Connect
it
to
the
A14-to-A7
cable
still
attached
to
the
A14
assembly
.
Narrow
the
span
and
bandwidth
to
observe
the
signal
closely
.
5.
If
the
HI
OUT
signal
is
as
clean
as
Figure
7-25,
the
A7
assembly
is
faulty
.
Otherwise
,
check
the
A14-to-A7
cable
or
recheck
the
A13/A14
fractional-N
as
described
ahead.
7-34
Source
T
roubleshooting
Содержание 8752C
Страница 22: ...Before Applying Power 15 6 Servicing 15 6 Index Contents 16 ...
Страница 38: ......
Страница 43: ...Figure 2 1 Measurement Uncertainty Window System Veri cation and Performance Tests 2 5 ...
Страница 80: ...Figure 2 15 Magnitude Dynamic Accuracy Test Setup 2 42 System Veri cation and Performance Tests ...
Страница 116: ......
Страница 122: ...Figure 3 1 Location of Major Assemblies 3 6 Adjustments and Correction Constants ...
Страница 176: ......
Страница 192: ...4 16 Start Troubleshooting Here ...
Страница 193: ......
Страница 194: ...Figure 4 7 HP 8752C Overall Block Diagram 2 of 4 Option 003 and 004 Start Troubleshooting Here 4 19 ...
Страница 195: ...Figure 4 7 HP 8752C Overall Block Diagram 3 of 4 Option 006 4 20 Start Troubleshooting Here ...
Страница 196: ...Figure 4 7 HP 8752C Overall Block Diagram 4 of 4 Option 004 and 006 Start Troubleshooting Here 4 21 ...
Страница 197: ......
Страница 221: ...5 24 Power Supply Troubleshooting ...
Страница 222: ......
Страница 225: ...Digital Control Group Block Diagram Figure 6 1 Digital Control Group Block Diagram Digital Control Troubleshooting 6 3 ...
Страница 267: ...Figure 7 18 25 MHz HI OUT Waveform from A14J1 Figure 7 19 60 MHz HI OUT Waveform from A14J1 Source Troubleshooting 7 27 ...
Страница 271: ...Figure 7 21 A14 Generated Digital Control Signals Source Troubleshooting 7 31 ...
Страница 301: ...Figure 9 2 Typical Smith Chart Traces of Good Short a and Open b Accessories Troubleshooting 9 7 ...
Страница 302: ......
Страница 366: ......
Страница 378: ...Figure 11 4 Typical ED Re ection Test Port 11 12 Error Terms ...
Страница 380: ...Figure 11 5 Typical ES Re ection Test Port 11 14 Error Terms ...
Страница 382: ...Figure 11 6 Typical ER Re ection Test Port 11 16 Error Terms ...
Страница 384: ...Figure 11 7 Typical EX with 10 Hz Bandwidth Figure 11 8 Typical EX with 3 kHz Bandwidth 11 18 Error Terms ...
Страница 386: ...Figure 11 9 Typical ET 11 20 Error Terms ...
Страница 407: ...Figure 12 5 High Band Operation of the Source Theory of Operation 12 21 ...
Страница 410: ...Figure 12 6 Receiver Functional Group standard and Option 003 12 24 Theory of Operation ...
Страница 411: ...Figure 12 7 Receiver Functional Group Option 003 and 004 Theory of Operation 12 25 ...
Страница 412: ...Figure 12 8 Receiver Functional Group Option 006 12 26 Theory of Operation ...
Страница 413: ...Figure 12 9 Receiver Functional Group Option 004 and 006 Theory of Operation 12 27 ...
Страница 416: ......
Страница 419: ...Figure 13 1 Module Exchange Procedure Replaceable Parts 13 3 ...
Страница 423: ...Major Assemblies Replaceable Parts 13 7 ...
Страница 425: ...Front Panel Assemblies Replaceable Parts 13 9 ...
Страница 427: ...Rear Panel Assemblies Replaceable Parts 13 11 ...
Страница 429: ...Cables Top View Replaceable Parts 13 13 ...
Страница 431: ...Front Panel Cables and Attaching Hardware Replaceable Parts 13 15 ...
Страница 433: ...Rear Panel Cables and Attaching Hardware Replaceable Parts 13 17 ...
Страница 435: ...Source and Sampler Parts Standard and Option 003 Replaceable Parts 13 19 ...
Страница 437: ...Source and Sampler Parts Option 004 006 Replaceable Parts 13 21 ...
Страница 439: ...Source and Sampler Parts Options 004 and 003 004 Replaceable Parts 13 23 ...
Страница 441: ...Source and Sampler Parts Option 006 Replaceable Parts 13 25 ...
Страница 443: ...Display Bezel Assembly Replaceable Parts 13 27 ...
Страница 445: ...Chassis Parts Replaceable Parts 13 29 ...
Страница 447: ...Top View of Attaching Hardware and Post Regulator Fuses Replaceable Parts 13 31 ...
Страница 449: ...Bottom View of Attaching Hardware Replaceable Parts 13 33 ...
Страница 488: ......