Tektronix 465M User Manual

AIR FORCE T033A1
-13-496-1
NAVELEX
0969-LP-170-0010
Maintenance
Instructions
(6)
Replace the board in reverse
order.
m.
Source and Coupling Switch Disassembly.
These
switches are disassembled
by
removing
the
one screw
holding each set
to
the board. Once
disassembled,
the
switch contact
pads can be cleaned
with an eraser (pencil
type) and isopropyl
alcohol. Reassemble
the switches
in
reverse order.
Do
not
touch or dean
the switch contact
wipers
as
they
are easily
damaged or
contaminated.
Whenever
the switches
are disassembled,
place
the
switches
in
a
container to
protect the
wipers.
n.
Horizontal Board
Removal and
Replacement
(Figure
5-10).
(1)
Remove
the horizontal
module.
(2)
Remove the Trigger
Board.
(3)
Remove both
screws holding the A
and
B
Timing
Switch Board
Assembly. Unplug
the assembly
and
move
it
far
enough
toward the top of
the module
to
uncover
the
Horizontal
Board
plugs to
the Sweep Board.
(4)
Remove the
horizontal POSITION and A
TRIG-
GER
HOLDOFF
shaft
knobs (see h. above).
(5)
Remove the two
screws holding the
board (left
rear
corner and right
front corner).
(6)
Unsolder the A Trigger
external input
at
the
BNC
connector and remove the board.
(7)
Replace the board in
reverse order.
o.
Sweep Board
Removal
and Replacement
(Figure
5-10).
(1)
Remove
the horizontal
module.
(2)
Remove
the A and
B Timing
Switch Board
Assembly.
(3)
Remove
the
Trigger
Board.
(4)
Remove
the
Horizontal
Board.
(5)
Unplug
the
three
multiconductor
connectors
going to front panel
controls.
(6)
Remove
the four
screws
holding
the
board
to the
chassis
and remove the
board.
(7)
Replace
the
board
in
reverse
order.
p.
Graticule
Illumination
Board
Removal
and Re-
placement.
(1)
Remove
the horizontal
module.
(2)
Remove
the crt.
(3)
Unplug
the Graticule
Illumination
Board con-
nector
(beside
the control
potentiometer),
and
remove
the
board.
(4)
Reinstall
the board in
reverse
order.
9-
Hybrid
1C
Removal
and
Replacement
(Figure 5-12).
When removing
the hybrid
1C, handle it
with care
as the ceramic
material may
break or crack if
dropped
or
hit
sharply.
(1)
Remove
the vertical
module.
(2)
Release
the TRIG
VIEW/20
MHz
BW
switch
shaft
from
the
switch
using
a 0.050 inch
hex
wrench.
Move
it
away
from
the
hybrid
1C.
(3)
Release
the INVERT
switch
shaft
by holding
the
shaft
and
pulling off
the gray
push button.
Rotate
the
shaft
away from
the
hybrid
1C.
(4)
Insert
a narrow
blade screwdriver
between
the
socket
(near the
lip) and the
mounting
clip.
Carefully
twist the
screwdriver
until the
mounting
clamp
unlatches
from
the lip. While
holding
a
finger
on
the
mounting
clamp
to keep
it from
springing
into
the air,
unlatch
the
other lip
on
the
same side.
Remove
the
mounting
clamp.
(5)
Lift
out the
hybrid
1C.
(6)
Replace
the
hybrid
1C as follows:
(a) Note
the index
key on
the
hybrid
1C and
the
socket,
then
set
the
1C into
the socket.
(b)
Hook
one end
of the
mounting
clamp
over
two of
the lips
on
one end
of the
socket;
hold
this end
of
the
clamp
so it
doesn't
spring
off the
socket.
Push
the
other
end
of the
clamp
down until
it
hooks over
the other
two
lips.
(c) Return
to step
(3)
above
and
continue
the
re-
placement
in
reverse
order
of removal.
5-40

Tektronix 465M Specifications

General

Brand	Tektronix
Model	465M
Category	Test Equipment
Language	English