a2
IF
Signal
P
ath
Check
Step
Connections/setup
Conclusion
(if
the
problem
is
corrected)
1
Mo
v
e
W46
cable
on
A13J5
to
A13J6.
replace
A13
IF
Mixer
b oard
2
Mo
v
e
W45
cable
on
A2J7
to
A2J5.
Redene
a1
to:
DRIVE:
P
ort
2.
replace
W46
(A13J5
to
A2J5)
3
Redene
a1
to:
DRIVE:
P
ort
1.
If
a1
IF
signal
is
ok
a
y
.
replace
A2
pulse
IF
Mux
b oard
4
Return
to
the
pulsed-RF
troublesho oting
o
w
c
hart.
Procedure
4:
A3/A4
Pulse
Detector
IF
P
ath
Check
Prerequisite
for
using
this
c
hec
k:
1.
Either
b oth
reference
(a1
&
a2)
or
b oth
test
(b1
&
b2)
pulsed-RF
IF
signal
paths
lo
ok
bad.
2.
Less
than
three
IF
paths
are
bad.
In
the
pro cedures
b elow,
alwa
ys
return
an
y
mov
ed
cables
to
their
original
connections
b efore
pro ceeding
to
the
next
step.
If
the
connections/setup
correct
the
problem,
carry
out
the
instructions
in
the
conclusion
column.
If
the
problem
isn't
corrected,
go
on
to
the
next
step.
6-18
System
Service
and
Troubleshooting
All manuals and user guides at all-guides.com
Summary of Contents for 85108A
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