Sharp R-8R51 - Page 33

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PWN >
—
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R 8R51(/8}
Disconnect
all
the
teads
and
terminals
of
high
voit-
CAUTION.
WHEN
REPLACING
HIGH
VOLTAGE
age
rectifier
assembly
from
high
voltage
capacitor.
RECTIFIER
ASSEMBLY.
ENSURE
THAT
.
Disconnect
the
high
voltage
wire
of
high
voltage
THE
CATHODE
(EARTH)
CONNECTION
rectifier
assembly
from
the
power
transformer.
IS
SECURELY
FIXED
TO
THE
. Now high voltage rectifier assembly and capacitor CAPACITOR HOLDER WITH A EARTH-
should
be
free.
ING
SCREW.
POWER TRANSFORMER REMOVAL
. CARRY OUT 3D CHECKS 5. Pull the lead of the power tranformer out of the
,
Disconnect
the
wire
leads
from
power
transformer
ferrite
core
and
the
hole
of
the
thermal
protection
. Disconnect the jeads from magnetron filament. plate rear.
6. Remove the two (2) screws holding the transformer
to unit chassis.
7. Remove the transformer.
. Disconnect the leads of the power transformer from
high voltage capacitor and magnetron.
MAGNETRON REMOVAL
. CARRY OUT 3D CHECKS screws holding the magnetron to prevent it from
. Remove two (2) screws holding the chassis support falling. . .
to the rear cabinet and the partition plate T. And 4, Remove the magnetron from the waveguide with
care so the magnetron antenna should not hit by
remove the chassis support. any metal object around the antenna.
. Disconnect teads from magnetron. Remove one (1)
screw holding the magnetron duct to magnetron.
And remove the magnetron duct.
. Carefully remove four (4) screws holding
magnetron to wavequide, when removing the
CAUTION: WHEN REPLACING THE MAGNETRON,
BE SURE THE R.F. GASKET IS IN
PLACE AND THE MAGNETRON
MOUNTING SCREWS ARE TIGHTENED
SECURELY.
CONTROL PANEL REMOVAL
. CARRY OUT 3D CHECKS 3. Remove the four (4) screws holding the control
. Disconnect the all connectors of main harness and panel plate to the oven cavity, the partition plate T
low voltage wire harness. and bottom plate, and remove the control panel.
4, Lift up the control panel assembly and pull it for-
ward. Now, the control panei assembly is free.
CONTROL UNIT AND KEY UNIT REMOVAL
. Remove the control panel from the oven cavity, 4, Remove the three (3) screws holding the control
refering to "CONTROL PANEL REMOVAL”. unit to the panel frame.
.
Remove
the
single
(1)
screw
holding
the
panel
5.
Disconnect
the
key
connector
from
the
control
unit.
frame to the back plat. 6. Lift up the control unit.
. Separate the panel frame and back plate by sliding. 7. Now, the control unit and frame assembly are sep-
arated.
FAN MOTOR
. Remove the power transformer from the bottom 4, Remove the fan motor angle from fan duct.
plate refering to “POWER TRANSFORMER RE- 5. Remove the fan blade from the fan motor.
MOVAL". 6. Remove the two(2) screws hoiding the fan motor
. Disconnect the wire leads from the fan motor and to fan motor angle.
thermal cut-out. 7. Remove the single (1) screw and single (1) nut
. Remove the two (2) screws holding the fan motor holding thermal cut-out angle.
angle to the fan duct. 8. Now, the fan motor is free.
CONVECTION HEATING ELEMENT OR CONVECTION FAN MOTOR REMOVAL
. CARRY OUT 3D CHECKS. 4. Disconnect the wire leads from the convection
.
Remove
the
seven(7)
screws
holding
the
rear
cabi-
heating
element,
convection
motor,
thermal
cit-out
net to the convection fan duct, bottom plate and and thermistor.
chassis
support.
5.
Remove
the
single
{1)
screw
halding
the
steam
.
Remove
the
rear
cabinet
from
the
oven.
duct
to
oven
cavity,
and
remove
the
steam
duct.
6. Remove the ten (10) screws holding the convection
fan duct to the oven cavity and bottom plate.
31