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3.
Disconnect
Cables
on
the
A1
CPU
a.
Turn
the
analyzer
power
o.
b.
Disconnect
cables
from
the
A1
CPU's
connectors
,
J10,
J11,
J12,
J13,
J14,
J16,
and
J17.
Don't
disconnect
the
A1J15.
The
connector
locations
are
shown
in
Figure
5-7
Figure
5-7.
A1
CPU
Connector
Locations
c.
Turn
the
analyzer
power
on.
Look
at
the
A1
+5
VD
LED
.
If
the
LED
is
still
o,
the
A1
CPU
is
probably
faulty
.
Replace
the
A1
CPU
.
If
the
LED
goes
on,
the
A1
CPU
is
veried.
Continue
with
the
next
step
.
d.
Turn
the
analyzer
power
o.
Reconnect
the
cable
to
the
A1J10.
Turn
the
analyzer
power
on.
Look
at
the
A1
+5
VD
LED
.
If
the
+5
VD
LED
goes
o,
the
problem
may
be
in
the
analog
assemblies
.
Continue
with
the
next
R
emove
A
ssemblies.
If
the
+
5
VD
LED
is
still
on,
continue
with
the
next
step
.
e.
Reconnect
one
of
the
disconnected
cables
to
its
connector
at
a
time
.
Turn
the
analyzer
power
on
after
each
cable
is
connected.
The
assembly
related
with
the
cable
turning
the
+5
VD
LED
o
is
probably
faulty
.
Replace
the
assembly
.
4.
Remove
Assemblies
a.
Turn
the
analyzer
power
o.
Remove
the
assemblies
,
A3,
A5,
A6,
A13,
A17,
A60
and
A70.
Do
not
remove
the
A2
post-regulator
.
b.
Turn
the
analyzer
power
on.
Look
at
the
A1
+5
VD
LED
.
If
the
LED
is
still
o,
replace
the
A2
post-regulator
.
If
the
+5
VD
LED
is
still
o
after
replacing
the
A2
post-regulator
,
inspect
the
A20
motherboard.
If
the
LED
goes
on,
the
A2
post-regulator
and
the
A20
motherboard
are
veried.
Continue
with
the
next
step
.
5-10
P
ower
Supply
T
roubleshooting
Содержание 4352B
Страница 11: ......
Страница 31: ......
Страница 73: ......
Страница 80: ...Figure 3 4 List Box Menu Adjustments and Correction Constants 3 7 ...
Страница 82: ...Figure 3 6 Reference Frequency Adjustment Location Adjustments and Correction Constants 3 9 ...
Страница 85: ...Figure 3 9 Third IF AMP GAIN Adjustment Location 3 12 Adjustments and Correction Constants ...
Страница 103: ...Figure 4 1 Troubleshooting Organization 4 2 Overall T roubleshooting ...
Страница 113: ......
Страница 130: ...Figure 5 11 Power Supply Block Diagram 1 Power Supply T roubleshooting 5 17 ...
Страница 131: ...Figure 5 12 Power Supply Block Diagram 2 5 18 Power Supply T roubleshooting ...
Страница 132: ...Figure 5 13 Power Supply Block Diagram 3 Power Supply T roubleshooting 5 19 ...
Страница 133: ......
Страница 135: ...Figure 6 1 Digital Control Group Simpli ed Block Diagram 6 2 Digital Control T roubleshooting ...
Страница 146: ...Figure 7 2 Source Group Troubleshooting Flow Source Group T roubleshooting 7 3 ...
Страница 154: ...Figure 8 2 Receiver Group Troubleshooting Flow Receiver Group T roubleshooting 8 3 ...
Страница 198: ...Figure 10 1 Power Supply Functional Group Simpli ed Block Diagram Theory of Operation 10 3 ...
Страница 203: ...Figure 10 3 Digital Control Group Simpli ed Block Diagram 10 8 Theory of Operation ...
Страница 269: ......
Страница 272: ...Figure B 1 Power Cable Supplied Power Requirement B 3 ...
Страница 273: ......
Страница 293: ...Error Messages Numerical Order 0400 Query error 0410 Query INTERRUPTED 0420 Query UNTERMINATED Messages 20 ...