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d.
Connect
the
flying
lead of the
new
oscillator
assembly
to
SK14
on the
motherboard
e.
Secure
the
oscillator
assembly
to
the rear panel using the
two
M3
x
6
screws and two
#4 lock washers.
For Option 04A/04E,
the
screws
pass
directly
into
the
top
of the oscillator
assembly;
for
the
standard
oscillator,
the
screws
fasten the
oscillator
to
the rear panel
via
two
threaded
standoffs
f.
Replace
the
top cover;
firmly secure
the
two
rear
corner-feet,
completing
the
installation
2.6.2
Frequency Standard
Multiplier
404399
(Option
10)
2.6.
2.1
Refer
to
Figure
2.7 for this
procedure.
The
installation
package
includes:
a.
Frequency
multiplier
PCB
(1)
P/N
19-1164
b.
#4
split
lock
washers
(2)
P/N
617127
c.
#4
flat
washers
(2)
P/N
617102
d.
M3
x
8
screws
(2)
P/N
611067
2. 6. 2.
2
Installation
a.
Disconnect
the
AC
power
cord at the rear panel
b.
Loosen, but
don't
remove,
the
two
rear corner-feet by unfastening the
four
retaining
screws (two per
foot).
Back
the corner
feet
out
approximately
5/8
inch.
Slide
the top
cover toward the
rear
of
the
unit,
then
lift
up and out
to
remove
c.
If
an ovened frequency standard (Option 04A/04E)
is
installed,
remove
it
according
to
paragraph
2.6.1.2
d.
Remove
the 2-pin shorting
link
at
SKI
6.
Connect
the
frequency
multiplier
PCB
to
the
motherboard
at
SK16
and SK17, with the
threaded spacers toward
the
adjacent
shield
(as
shown)
e.
Secure
the option
PCB
to
the shield using the
two
M3
x
6
screws and
two
#4
split
lock
washers
f.
If
removed,
replace
and secure
the
ovened frequency
standard
removed
in
step
(c)
g.
Replace
the
top cover;
firmly secure
the
two
rear
corner-feet,
completing
the
installation
2-12
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