Fluke 9000A-Z80QT Instruction Manual page 65

Check for
4.
observing pin
operation is
signal at pin
of
at pin
19
allows the pod to communicate with the mainframe,
from
latches
UUT (or self test socket). Failure
read from the UUT from reaching the pod microprocessor.
5-10.
SELF TEST CODE
Ifa
self test
produces
indicated:
UUT power sensing circuit failure
0
Control line(s) cannot be driven
0
0
Address.hne(s) cannot
Data line(s) cannot be driven
0
further
isolate the trouble, proceed
To
Check the
1.
UUT supply at the
the
+5V
Fail line. Check the Power Fail line
necessary, at the shielded cable connector.
Perform
2.
data.
If the mainframe indicates a control line error, examine the entire
a.
mainframe display to determine the stuck control line(s). While
looping on the
control
line failure.
If the mainframe indicates an address line
b.
address line(s) indicated on the mainframe display. While looping on
the
error,
failure.
If the mainframe indicates a
0.
indicated on the mainframe display. While looping on the error, use
the
probe
steps 2b and
Repeat
3.
to check address and data lines in the opposite state.
operation 2f_the
for
of
U20 (IRQ)
18
executed. If the
IRQ
of
the shielded cable
10
the PCB-to-PCB connector.
detecting addresses,
1
a failure code of
1,
driven
be
operation of
the UUT power sensing circuit by verifying
ribbon
write operation; use
a
use the probe
error,
use the probe or a scope to locate the point
or a scope to locate the point
2c
using
timer and timing circuits
interval
a low-going output
present, check
is
signal
and for a UUT ON signal
connector,
The absence of these signals
data, and control signals sent to the
of
these signals may also prevent
of
the following failures
or
one more
follows:
as
cable connector and 0V on the Power
of
the PCB-to-PCB connector, and if
for
the address and
OFFO
a scope to locate
or
error,
data
line error, note the failed line(s)
of
failure.
for the address and F0
FOOF
ZBOQT
by
each time a read
for
a SYNC
but
prevents the
data
is
for the
UP
of
the
point
note the failed
of
address
line
forthe data
5-13