Control Panel Assembly - Sharp R-209FW Service Manual

1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads from magnetron.
3. Remove the three (3) screws holding the magnetron to
the waveguide.
4. Remove the magnetron from waveguide.
(HIGH VOLTAGE CAPACITOR AND HIGH VOLTAGE RECTIFIER ASSEMBLY)
To remove the components, proceed as follows.
1. CARRY OUT 3D CHECKS.
2. Remove one (1) screw holding capacitor holder to rear
cabinet.
3. Disconnect the H.V. wire of the H.V. rectifier assembly
from the magnetron.
4. Disconnect the filament lead of the high voltage trans-
former from the H.V. capacitor.
5. Remove one (1) screw holding ground side terminal of
high voltage rectifier assembly, and remove capacitor
holder.
6. Disconnect all the leads and terminals of high voltage
1. CARRY OUT 3D CHECKS.
2. Disconnect the wire leads (main wire harness) from
high voltage transformer.
3. Disconnect the lead from magnetron filament.
4. Disconnect the leads of the high voltage transformer
from high voltage capacitor.
5. Remove the two (2) screws holding the transformer to
bottom plate from the upper side.
6. Remove the remaining two (2) screws from the bottom.
7. Remove the transformer.
8. Now the high voltage transformer is free.
POSITIVE LOCK
1. CARRY OUT 3D CHECKS.
2. Push the lever of positive lock
3. Pull down on the positive lock
CAUTION: WHEN CONNECTING THE POSITIVE
®
LOCK CONNECTORS TO THE TERMI-
NALS, INSTALL THE POSITIVE LOCK
THAT THE LEVER FACES YOU
1. CARRY OUT 3D CHECKS.
2. Disconnect the leads from the control unit and the timer
motor.
MAGNETRON REMOVAL
HIGH VOLTAGE COMPONENTS REMOVAL
HIGH VOLTAGE TRANSFORMER REMOVAL
®
CONNECTOR (NO-CASE TYPE) REMOVAL
®
connector.
® connector.
® SO
CONTROL PANEL ASSEMBLY REMOVAL
5. Now, the magnetron is free.
CAUTION: WHEN REPLACING THE MAGNETRON,
BE SURE THE R.F. GASKET IS IN PLACE
AND THE MAGNETRON MOUNTING
SCREWS ARE TIGHTENED SECURELY.
rectifier assembly from high voltage capacitor.
7. Now the H.V. rectifier assembly and H.V. capacitor
should be free.
CAUTION: WHEN REPLACING HIGH VOLTAGE REC-
TIFIER ASSEMBLY, ENSURE THAT THE
CATHODE (GROUND) CONNECTION IS
SECURELY FIXED TO THE CAPACITOR
HOLDER WITH A GROUNDING SCREW.
CAUTION: DO NOT REPLACE ONLY HIGH VOLT-
AGE RECTIFIER. WHEN REPLACING IT,
REPLACE HIGH VOLTAGE RECTIFIER
ASSEMBLY.
Re-install
1. Rest transformer on the bottom plate with its primary
terminals toward the oven face plate.
2. Secure transformer with four (4) screws to the bottom
plate.
3. Re-connect wire leads (primary and high voltage) and
filament leads to the high voltage transformer, magn-
etron and high voltage capacitor, referring to "Pictorial
Diagram".
4. Re-install outer case and check that the oven is oper-
ating properly.
Positive lock®
connector
Lever
Figure C-1. Positive lock
3. Remove the one (1) screw holding the control panel to
the front plate of the oven cavity.
4. Now, the control panel assembly is free.
19
R-209(IN)
R-209(W)
R-209(Y)
Terminal
1
Push
2
Pull down
® connector