3.
Check
the
A1
DRAM
and
Flash
Memory
The
A1
DRAM
and
ash
memory
are
tested
in
sequence
to
access
the
bootloader
menu.
F
or
the
bootloader
menu,
see
the
Service
K
ey
Menus
chapter
.
P
erform
the
following
procedure
to
verify
the
A1
DRAM
and
ash
memory
.
a.
Turn
the
analyzer
power
o.
b.
Push
the
two
keys
4
DC
Control
5
and
4
Preset
5 .
While
keeping
the
two
keys
pushed
down,
turn
the
analyzer
power
on.
c.
W
ait
for
the
display
shown
in
Figure
6-5
to
appear
on
the
LCD
.
d.
Check
that
no
error
message
displayed
on
the
LCD
.
If
no
error
message
is
displayed,
the
A1
DRAM
and
ash
memories
are
veried.
Continue
with
the
next
step
,
Check
the
A1
V
olatile
Memory
.
If
an
error
message
is
displayed
or
the
display
shown
in
Figure
6-5
does
not
appear
,
the
A1
CPU
is
probably
faulty
.
Replace
the
A1
CPU
.
Figure
6-5.
Bootloader
Display
Digital
Control
T
roubleshooting
6-7
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: ......