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W
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
FREQ
BUS
[OFF]
(:DIAG:SERV:BUS:FREQ
<numeric
>)
Allows
you
to
select
one
of
the
frequency
bus
nodes
.
The
frequency
bus
nodes
are
numbered
from
0
to
14.
T
o
select
the
desired
frequency
bus
node
,
press
this
softkey
and
then
enter
the
frequency
node
number
by
using
the
numeric
keypad,
4
*
5 ,
4
+
5 ,
or
RPG
knob
.
The
node
number
and
name
are
displayed
in
the
active
entry
area
of
the
display
and
the
node
abbreviation
is
displayed
in
the
brackets
of
the
menu.
W
WWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWWW
WAIT
COUNT
(:DIAG:SERV:BUS:WAIT
<numeric
>)
Sets
the
wait
count
to
specify
the
wait
time
in
the
DC
bus
measurement.
The
wait
count
is
an
integer
from
1
to
32767.
When
the
wait
count
is
N,
the
analyzer
waits
N
*
12.5
sec
before
each
DC
bus
measurement.
Bus
Measurement
In
this
service
mode
,
the
analyzer
measures
and
displays
the
signal
voltage
or
frequency
at
the
selected
bus
node
.
This
service
mode
allows
you
to
check
the
circuit
operation
by
monitoring
the
circuit
signal
without
accessing
the
inside
of
the
analyzer
.
The
analyzer
has
28
bus
nodes
for
this
service
mode
.
Of
these
,
28
bus
nodes
are
for
DC
voltage
measurement.
These
nodes
are
connected
to
the
A/D
converter
in
the
A6
through
the
DC
Bus
.
The
other
7
bus
nodes
are
for
frequency
measurement.
These
nodes
are
connected
to
the
frequency
bus
timer
in
the
A1
CPU
through
the
frequency
bus
.
Each
of
the
DC
bus
nodes
and
the
frequency
bus
nodes
is
described
in
the
DC
Bus
Nodes
and
Frequency
Bus
Nodes
in
this
section.
Bus
Measurement
Procedure
Use
this
procedure
to
perform
the
bus
measurement.
1.
Press
4
Preset
5
to
initialize
the
analyzer
.
2.
Press
4
System
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MENU
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MODES
,
NNNNNNNNNNNNNNNNNNNNNNNNNN
BUS
MEAS
to
display
the
bus
measurement
menu.
3.
Select
the
desired
bus
node
as
follows:
If
a
DC
bus
measurement
is
desired,
press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
DC
BUS
[OFF]
.
Then
enter
a
node
number
between
1
and
52.
If
a
frequency
bus
measurement
is
desired,
press
N
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
FREQ
BUS
[OFF]
.
Then
enter
a
node
number
between
1
and
14.
4.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
BUS
MEAS
on
OFF
to
activate
the
bus
measurement.
The
menu
changes
to
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
BUS
MEAS
ON
off
.
The
DC
or
frequency
bus
measurement
value
is
displayed
in
the
marker
value
.
See
the
Bus
Measurement
V
alues
section.
5.
Set
the
analyzer
controls
to
the
settings
that
you
want
to
observe
in
the
bus
measurement.
6.
Observe
the
bus
measurement
trace
and
marker
value
.
7.
Press
4
Preset
5
to
exit
the
bus
measurement.
T
o
change
the
bus
node
to
another
node
,
repeat
the
steps
above
.
The
DC
bus
and
the
frequency
bus
can
not
be
monitored
simultaneously
.
9-14
Service
K
ey
Menus
Summary of Contents for 4352B
Page 11: ......
Page 31: ......
Page 73: ......
Page 80: ...Figure 3 4 List Box Menu Adjustments and Correction Constants 3 7 ...
Page 82: ...Figure 3 6 Reference Frequency Adjustment Location Adjustments and Correction Constants 3 9 ...
Page 85: ...Figure 3 9 Third IF AMP GAIN Adjustment Location 3 12 Adjustments and Correction Constants ...
Page 103: ...Figure 4 1 Troubleshooting Organization 4 2 Overall T roubleshooting ...
Page 113: ......
Page 130: ...Figure 5 11 Power Supply Block Diagram 1 Power Supply T roubleshooting 5 17 ...
Page 131: ...Figure 5 12 Power Supply Block Diagram 2 5 18 Power Supply T roubleshooting ...
Page 132: ...Figure 5 13 Power Supply Block Diagram 3 Power Supply T roubleshooting 5 19 ...
Page 133: ......
Page 135: ...Figure 6 1 Digital Control Group Simpli ed Block Diagram 6 2 Digital Control T roubleshooting ...
Page 146: ...Figure 7 2 Source Group Troubleshooting Flow Source Group T roubleshooting 7 3 ...
Page 154: ...Figure 8 2 Receiver Group Troubleshooting Flow Receiver Group T roubleshooting 8 3 ...
Page 198: ...Figure 10 1 Power Supply Functional Group Simpli ed Block Diagram Theory of Operation 10 3 ...
Page 203: ...Figure 10 3 Digital Control Group Simpli ed Block Diagram 10 8 Theory of Operation ...
Page 269: ......
Page 272: ...Figure B 1 Power Cable Supplied Power Requirement B 3 ...
Page 273: ......