4.
Check
the
A1
V
olatile
Memory
a.
Turn
the
analyzer
power
on.
b.
Press
4
System
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MENU
,
NNNNNNNNNNNNNNNNN
TESTS
,
4
2
5 ,
4
x1
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE
TEST
to
run
the
internal
test
2:
A1
V
OLA
TILE
MEMORY
.
c.
Check
that
no
error
message
displayed.
At
the
end
of
this
test,
the
analyzer
returns
the
control
settings
to
their
default
values
(power
on
reset).
If
the
test
fails
,
the
analyzer
displays
an
error
message
for
a
few
seconds
before
setting
the
defaults
.
If
no
error
message
is
displayed,
the
A1
volatile
memories
are
veried.
Continue
with
the
next
step
,
Check
the
A30
Front
K
eyboard.
If
one
of
the
error
messages
listed
below
is
displayed,
the
A1
CPU
is
faulty
.
Replace
the
A1
CPU
.
CPU
INTERNAL
SRAM
R/W
ERROR
DSP
SRAM
R/W
ERROR
DUAL
PORT
SRAM
R/W
ERROR
CPU
BACKUP
SRAM
R/W
ERROR
5.
Check
the
A30
Front
K
eyboard
The
A30
front
keyboard
can
be
checked
using
the
external
test
11:
FRONT
P
ANEL
DIA
G.
a.
Press
4
Preset
5 ,
4
System
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MENU
,
NNNNNNNNNNNNNNNNN
TESTS
,
4
1
5 ,
4
1
5 ,
4
x1
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE
TEST
to
run
the
external
test
17.
b.
Press
all
of
the
front
panel
keys
.
The
pressed
abbreviated
key
name
should
be
displayed
as
a
key
is
pressed.
Y
ou
can
check
every
key
on
the
A30
Keyboard
except
for
4
Preset
5 .
(If
you
want
to
exit
this
test,
press
4
Preset
5 .)
If
one
or
more
keys
seems
to
be
defective
,
replace
the
A30
front
keyboard.
If
all
keys
seem
to
be
good,
the
A30
front
keyboard
is
veried.
Continue
with
the
next
step
,
Check
the
A53
FDD.
6.
Check
the
A53
FDD
The
A53
FDD
(Flexible
Disk
Drive)
can
be
checked
using
the
external
test
12:
DISK
DR
F
ALUT
ISOL'N.
a.
Press
4
Preset
5 ,
4
System
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE
MENU
,
NNNNNNNNNNNNNNNNN
TESTS
,
4
1
5 ,
4
2
5 ,
4
x1
5 ,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE
TEST
to
run
the
external
test
12.
b.
As
the
analyzer
instructs
,
insert
a
exible
disk
into
FDD
.
Use
a
formatted
but
blank
exible
disk,
otherwise
the
data
on
the
disk
will
be
overwritten
by
this
test.
Then
press
NNNNNNNNNNNNNN
CONT
.
c.
Check
the
test
result,
P
ASS
or
F
AIL,
that
is
displayed
at
the
end
of
the
test.
If
this
test
fails
,
replace
the
A53
FDD
.
6-8
Digital
Control
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 ...