Tektronix CA PLUG-IN, Инструкция по эксплуатации

Страница: 16 / 48

ends of the b olts, and fasten them firm ly with
another set #2-56 nuts. Place a drop of red
glyptal over each of the second set of nuts
after fastening.
Mounting Later Ceramic Strips
To replace Strips which mount with snap-in
plastic fittin gs, first remove the original
fittings from the Chassis. Assemble the mount­
ing post on the ceram ic Strip. Insert the
nylon collar into the mounting holes in the
Chassis.
Carefully force the mounting post
into the nylon collars. Snip off the portion
o f the mounting post which protrudes below
the nylon collar on the reverse side of the
chassis.
Note
Considerable force may he nec-
essary to push the mounting rods
into the nylon collars. Be sure that
you apply this force to that area of
ceram ic strip directly above the
mounting rods.
Color Coding
A ll wiring in the Type CA Unit is color
coded to facilitate Circuit tracing. Specific
color codes are used to distinguish the leads
fo r the power-supply voltages obtained from the
oscilloscope. These power-supply leads follow
the Standard RETMA code. The -150 volts
bus wire is coded brown-green-brown; the
+ 350 volts bus is coded orange-green-brown;
the + 225 volts bus is coded red-red-brown
and the +100 volts bus is coded brown-black-
brown. The widest stripe identifies the first
colo r of the code.
4-4
Maintenance - Type CA
AA