4.
WT
except Canada: Disconnect
the
two
wires
(two screws) leading from the ferro terminal strip
to
the prime power assembly. Note where
the
leads are connected for reinstallation.
5.
EMEA
ferrotransformer only: Remove
the
screw
fastening
the
ground wire (green/yellow) from
the
side
of
the
prime power assembly.
6.
Disconnect
the
two
cable
conn~ctors
and slip-on
connector from
the
ferrotransformer
to
the
low-
voltage assembly.
7. Remove
the
outer
mounting screw holding
the
ferro
to
the
frame and loosen
the
inner screw.
8. Slide
the
transformer
out
of
the
frame.
9. Reinstall
in
the
reverse sequence.
10. Check
the
+44 V supply using procedure 5.4.
6.2.5
High-Voltage Power Supply
1. Using an insulated jumper wire, ground
the
CRT
anode terminal
to
discharge static charge.
Carefully disconnect
the
CRT anode lead;
static charge may be present.
2. Disconnect
the
input cable
at
the
lower edge
of
the
high-voltage assembly (see Figure 4-4).
3. Open
the
logic gate by loosening
the
front
mounting screw located
in
back
of
the
high-
voltage supply support shield.
4. Remove
the
high-voltage supply mounting screw
located on
the
back
of
the
high-voltage
support
shield.
5. Slide
the
power supply
out
of
the
support shield.
6. Reinstall
in
the
reverse sequence. Ensure
that
the
anode lead
is
firmly seated on
the
CRT bell.
6.2.6 Fuses
1. Fuses are located near
the
line-voltage cord
socket and under
the
low-voltage shield.
6.2.7 Card/Connector
Removal and Replacement
Procedures.
All
cards and internal connectors (except
the
CRT socket) have mechanical locking devices.
SY27-2510-6
(1/81) 6-3
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