Sharp Carousel R-326FS Servicehandleiding - Pagina 30
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R - 326FS
CAUTION: 1. DISCONNECT OVEN FROM POWER SUP
PLY BEFORE REMOVING OUTER CASE.
2. DISCHARGE THE HIGH VOLTAGE CAPACI-
TOR BEFORE TOUCHING ANY OVEN COM-
PONENTS OR WIRING.
1. Disconnect the power supply cord and then remove
outer case.
2. Open the oven door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect wire leads (primary) from power transformer
and the filament leads and high voltage wire from the
magnetron and capacitor terminals.
5. Remove four (4) screws holding transformer to bottom
plate.
6. Remove transformer from bottom plate.
1. Disconnect the power supply cord, and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Open covers of the terminal insulator by using small flat type
screw driver.
5. Remove the receptacle from the terminal insulator.
6. Now, the terminal insulator is free.
Terminal
insulator
HIGH VOLTAGE RECTIFIER AND HIGH VOLTAGE CAPACITOR REMOVAL
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the high voltage wire of the power transformer
from the high voltage capacitor.
5. Disconnect the high voltage wire of high voltage rectifier
assembly from the magnetron.
6. Disconnect the filament lead (short one) of the power
transformer from the high voltage capacitor.
7. Remove two (2) screws holding capacitor holder to oven
R emoval
1. Disconnect the power supply cord and then remove outer
case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect all wire leads from magnetron.
5. Remove the five (5) screws holding chassis support to
magnetron, oven cavity back plate, oven cavity front flange
and fan duct.
6. Remove the chassis support from oven.
7. Carefully remove the four (4) screws holding magnetron to
waveguide flange.
8. Lift up magnetron with care so that magnetron antenna is
POWER TRANSFORMER REMOVAL
TERMINAL INSULATOR REPLACEMENT
Flat type
screw driver
MAGNETRON REMOVAL
28
NOTE: When replacing the outer case, the 2 special
Torx screws must be reinstalled in the same
locations.
Reinstallation
1. Rest transformer on the bottom plate with its primary
terminals toward the oven face plate.
2. Secure transformer with four screws to bottom plate.
3. Reconnect wire leads (primary) to power transformer and
filament leads and high voltage wire of transformer to
magnetron and high voltage capacitor. Refer to "PICTORIAL
DIAGRAM" .
4. Reinstall outer case and check that oven is operating
properly.
Installation
1. Insert the receptacle into terminal insulator.
2. Close covers of the terminal insulator, as shown below.
3. Reconnect all leads removed from components during testing.
4. Reinstall the outer case (cabinet).
5. Reconnect the power supply cord after the outer case is installed.
6. Run the oven and check all functions
Covers
Receptacle
cavity rear plate.
8. Remove one (1) screw holding high voltage rectifier
assembly to capacitor holder.
9. Disconnect rectifier terminal from capacitor.
High voltage rectifier assembly is now free.
10. Remove capacitor holder. Capacitor is now free.
CAUTION: WHEN REPLACING HIGH VOLTAGE RECTI-
FIER AND HIGH VOLTAGE CAPACITOR,
GROUND SIDE TERMINAL OF THE HIGH VOLT-
AGE RECTIFIER MUST BE SECURED FIRMLY
WITH A GROUNDING SCREW.
not hit by any metal object around antenna.
9. Now, the magnetron is free.
Reinstallation
1. Reinstall the magnetron to waveguide flange with the four
(4) screws.
2. Insert the two (2) tabs of the chassis support to the oven
cavity front plate and the back plate.
3. Hold the chassis support to the oven cavity back plate, oven
cavity front flange, magnetron and the fan duct with the five
(5) screws.
4. Reconnect the wire leads to the magnetron and thermal cut-
out (MG). Refer to "PICTORIAL DIAGRAM"
.