Bbb Field Test Results; Ccc Field Test Results; Ddd Field Test Results - Fluke 6060B Instruction Manual

MAINTENANCE
TROUBLESHOOTING AND REPAIR
Table 4D-4.
BBB
Field
Test Results
BBB
(CODE)
SYNTH, FREQ.
(MHZ)
MAX.
WAIT
CMS)
XOENL
BIT
EXPECTED
RESULT
001
245 120 0
Locked
002 525
5
0
Unlocked
004 525 95 0
Locked
010 225 120
0
Unlocked
020 385
120
0
Locked
040
550 120 0
Unlocked
100
385 120
1
Unlocked
200 385
200 0
Locked
The Generator
RAM
is
verified
by
writing
data
to
each
memory
location
and
checking
that the
same
data
can be
read back.
Both
the off-chip
RAM
(U25)
and
the
on-chip
RAM
(U
1)
are tested in this
manner.
The
RAM
test
is
only
done during the
power-on
self
test.
The
data
in
each of the three calibration
EPROMs;
VCO
(U23),
Output
(U24),
and
Attenuator (U26)» are
summed
and compared with a checksum.
The
data
in
each
word
of
the
two program
EPROMs
(U21j
22) are successively
summed
and rotated by two.
The
result
of
this
procedure
is
compared
with a
checksum
for
each
EPROM.
Table
4D-5 shows
the
CCC
field results.
4D-21.
ODD
FIELD
DDD
is
the
result
of the
Output
filter tests.
During
these
tests,
the
level
is
programmed
to
+13.0
dBm
with level
correction applied.
The low-pass
filters
on the
A2A4
Output
assembly
are tested
by
setting
the frequency near
the
high end of each of the four half-
octave non-het
bands and
checking
for
a leveled condition.
Then, the
frequency
is
set
above the cutoff frequencies
of two
of the
filters,
and
the
output
is
checked
for
an
unleveled condition.
Table
4D-6 shows
the
DDD
field
Results.
Table
4D-5.
CCC
Field
Test Results
CCC
(CODE)
DIGITAL TEST
001
IEEE-488 option test
002
Non-volatile memory test
004
RAM test
010
Attenuator calibration EPROM checksum
020
Output calibration EPROM checksum
040
Synthesizer calibration EPROM checksum
100
Lower program EPROM checksum
200
Upper program EPROM checksum
Table 4D-6.
ODD
Field
Test Results
DDD
(CODE)
FREQ
(MHZ)
MIDL HAOCTH
expected
RESULT
001
349.99999
0
1
leveled
002
511.99999
0 0
leveled
004 729.99999
1
0
Leveled
010
1050.00000
1
1
leveled
020 490.00000
0
1
unleveled
040 1024.00000
1
0
unleveled
4D-7