Disassembly And Reassembly - Samsung CE745GR Service Manual

4. Disassembly and Reassembly

4-1 Replacement of Magnetron, Motor Assembly and Lamp
Remove the magnetron including the shield case,
permanent magnet, choke coils and 500pF
capacitors (all of which are contained in one
assembly).
1. Disconnect all lead wires from the magnetron
and lamp.
2. Remove the bracket mounting.
3. Remove the air cover.
4. Remove screws securing the magnetron to the
wave guide.
5. Take out the magnetron very carefully.
6. Remove screws from the back panel.
7.Remove the assy noise filter.
8. Take out the fan motor.
9. Remove the oven lamp by pulling out from hole
of air cover carefully.
10. NOTE1: When removing the magnetron, make
sure that its antenna does not hit any
adjacent parts, or it may be damaged.
11. NOTE2: When replacing the magnetron, be
sure to remount the magnetron gasket
in the correct position and make sure
the gasket is in good condition.
4-2 Replacement of High Voltage Transformer
1. Discharge the high voltage capacitor.
2. Disconnect all the leads.
3. Remove the mounting bolts.
4. Reconnect the leads correctly and firmly.
PRECAUTION
Servicemen should remov their watches whenever
working close to or replacing the magnetron.
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with high
current capabilities in the circuits of the HIGH
VOLTAGE TRANSFORMER secondary and filament
terminals. It is extremely dangerous to work on or
near these circuits with the oven energized.
DO NOT measure the voltage in the high voltage
circuit including filament voltage of magnetron.
Samsung Electronics
Cover Air
Lamp
BKT-Mountain
Magnetron
Thermo S/W
Screw
H. V. Trans
H. V. Capacitor
Bolts
H. V. Trans
Fan Motor
4-1