MICROWAVE OVEN
CE745GR
SERVICEManual
CONTENTS
MICROWAVE OVEN
1. Precaution
2. Specifications
3. Operating Instructions
4. Disassembly and Reassembly
5. Alignment and Adjustments
6. Troubleshooting
Auto
Auto
l
b
s.
oz.
g
kg
1
-
2
-
3
h
min
1min
10min
10s.
1min+
CE745GR
GRILL
7. Exploded Views and Parts List
8. PCB Diagrams
9. Schematic Diagrams
BWT
Download from Www.Somanuals.com. All Manuals Search And Download.
1. Precaution
Follow these special safety precautions. Although the microwave oven is completely safe during ordinary
use, repair work can be extremely hazardous due to possible exposure to microwave radiation, as well as
potentially lethal high voltages and currents.
1-1 Safety precautions (
)
1. All repairs should be done in accordance
with the procedures described in this
manual. This product complies with
Federal Performance Standard 21 CFR
Subchapter J (DHHS).
11. If the fuse is blown by the Interlock Monitor
Switch: Replace all of the following at the
same time: Primary and secondary switches,
as well as the Interlock Monitor Switch. The
correct adjustment of these switches is
described elsewhere in this manual. Make
sure that the fuse has the correct rating for
the particular model being repaired.
2. Pacemaker wearers must consult a physician
before attempting to service an MWO.
8. Notify the Central Service Center if the
12. Design Alteration Warning:
2
Use exact replacement parts only, i.e.,
only those that are specified in the
drawings and parts lists of this manual.
This is especially important for the
Interlock switches, described above.
Never alter or add to the mechanical or
electrical design of the MWO. Any design
changes or additions will void the
manufacturer's warranty.10.Always unplug
the unit's AC power cord from the AC
power source before attempting to
remove or reinstall any component or
assembly.
microwave leakage exceeds 5 mw/cm
4. Check all grounds.
5. Do not power the MWO from a "2-prong"
AC cord. Be sure that all of the built-in
protective devices are replaced. Restore any
missing protective shields.
6. When reinstalling the chassis and its
assemblies, be sure to restore all protective
devices, including: nonmetallic control
knobs and compartment covers.
13. Never defeat any of the B+ voltage
interlocks. Do not apply AC power to the
unit (or any of its assemblies) unless all
solid-state heat sinks are correctly installed.
7. Make sure that there are no cabinet openings
through which people--particularly
children--might insert objects and contact
dangerous voltages. Examples: Lamp hole,
ventilation slots.
14. Some semiconductor ("solid state") devices
are easily damaged by static electricity. Such
components are called Electrostatically
Sensitive Devices (ESDs). Examples include
integrated circuits and field-effect
transistors.
8. In the event of suspected microwave energy
leakage in excess of 5mW/§†, please notify
J.V.SAMSUNG SERVICE LTD.
MARSHAL ZHUKOU.,1.OFFICE 201
123308,MOSCOW,RUSSIA
Immediately before handling any
9. Service technicians should remove their
watches while repairing an MWO.
semiconductor components or assemblies,
drain the electrostatic charge from your
body by touching a known earth ground.
10. To avoid any possible radiation hazard,
replace parts in accordance with the wiring
diagram. Also, use only the exact
15. Always connect a test instrument's ground
lead to the instrument chassis ground before
connecting the positive lead; always remove
the instrument's ground lead last.
replacements for the following parts:
Primary and secondary interlock switches,
interlock monitor switch.
Samsung Electronics
1-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Pretaution
1-2 Special Servicing Precautions (Continued)
16. When checking the continuity of the witches
or transformer, always make sure that the
power is OFF, and one of the lead wires is
disconnected.
17. Components that are critical for safety are
indicated in the circuit diagram by
shading,
or
.
18. Use replacement components that have the
same ratings, especially for flame resistance
and dielectric strength specifications. A
replacement part that does not have the
same safety characteristics as the original
might create shock, fire or other hazards.
1-3 Special High Voltage Precautions
1. High Voltage Warning
Do not attempt to measureany of the high
voltages--this includes the filament voltage
of the magnetron. High voltage is present
during any cook cycle.
Before touching any components or wiring,
always unplug the oven and discharge the
high voltage capacitor (See Figure 1-1)
2. The high-voltage capacitor remains charged
about 30 seconds after disconnection. Short
the negative terminal of the high-voltage
capacitor to the oven chassis. (Use a
screwdriver.)
3. High voltage is maintained within specified
limits by close-tolerance, safety-related
components and adjustments. If the high
voltage exceeds the specified limits, check
each of the special components.
Fig. 1-1. Discharging the High Voltage Capacitor
1-2
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
2. Specifications
2-1 Table of Specifications
MODEL
CE745GR
ITEM
TIMER
99 MINUTES 90 SECONDS
230V/50HZ, AC
POWER SOURCE
POWER CONSUMPTION
OUTPUT POWER
MICROWAVE : 1,400W,GRILL : 1100W
FROM85 TO 850W (10 LEVEL POWER)
(IEC-705 TEST PROCEDURE)
2,450MHz
OPERATING FREQUENCY
MAGNETRON
OM75PH(31)
COOLING METHOD
OUTSIDE DIMENSIONS
NET WEIGHT
COOLING FAN MOTOR
1
27
3
19 /4"(W) x 10 /32"(H) x 14 /8"(D)
36.3 LBS.
SHIPPING WEIGHT
39.6 LBS.
2-2 Comparison Chart
MODEL
CE745GR
FEATURE
MORE/LESS
AUTO REHEAT
AUTO DEFROST
TIME COOK
POWER LEVEL
INSTANT COOK
MEMORY
O
O
O
O
O
O
O
BOOST
-
CHILD LOCK
CLOCK
GRILL
O
O
O
O
COMBI
Samsung Electronics
2-1
Download from Www.Somanuals.com. All Manuals Search And Download.
3. Operating Instructions
3-1 Control Panel
Instant Cook Button
Auto Cook Button
Auto Defrost Butten
Kg,g Button
Auto
Auto
More/Less Button
lbs.
kg
oz.
g
Clock Setting Button
Power Level Selection Button
Hold/Timer Button
Grill Button
Combi Button
1-2-3
10s.
h
min
1min
Memory Button
Stop Button
10min
Timer Setting Button
Start/Boost Button
1min+
CE745GR
3-2 Features & External Views
Ventilation Slot
Light
Door
Safety Interlock Holes
Auto
Auto
lbs.
kg
oz.
g
Control Panel
1
-
2
-
3
Door Latches
h
min
1min
10min
10s.
1min+
CE745GR
Open Door PushButton
Glass Plate
Guide Roller
GRILL WIRE RACK
Auto
Auto
lbs.
kg
oz.
g
1-2-3
10s.
h
min
1min
10min
1min+
GRILL
CE745GR
200mm
357mm
489mm
365mm
Samsung Electronics
3-1
Download from Www.Somanuals.com. All Manuals Search And Download.
4. Disassembly and Reassembly
4-1 Replacement of Magnetron, Motor Assembly and Lamp
Remove the magnetron including the shield case,
Cover Air
permanent magnet, choke coils and 500pF
capacitors (all of which are contained in one
assembly).
Thermo S/W
Lamp
1. Disconnect all lead wires from the magnetron
and lamp.
2. Remove the bracket mounting.
3. Remove the air cover.
Fan Motor
BKT-Mountain
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.
Screw
H. V. Capacitor
H. V. Trans
Magnetron
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.
Bolts
H. V. Trans
DO NOT measure the voltage in the high voltage
circuit including filament voltage of magnetron.
Samsung Electronics
4-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Disassembly and Reassembly
4-3 Replacement of Door Assembly
4-3-1 Removal of Door Assembly
Remove screws securing the upper hinge and
lower hinge. Then remove the door assembly.
Upper Hinge
Screw
Lower Hinge
Screw
4-3-2 Removal of Door "C"
Insert flat screwdriver into the gap between Door
"A" and Door "C" to remove Door "C". Be careful
when handling Door "C" because it is fragile.
Door "C"
Door "A"
4-3-3 Removal of Door "E"
Door "E"
Following the procedure as shown in the figure,
insert and bend a thin metal plate between Door
"E" and Door "A" until you hear the 'tick' sound.
1. Insertion depth of the thin metal plate should be
0.5mm or less.
4-2
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
Disassembly and Reassembly
4-3-4 Removal of Key Door & Spring
1. Remove pin hinge from Door "E"
Detach spring from Door "E" and key door.
Door "E"
2. After replacement of the defective component
parts of the door, reassemble it and follow the
instructions below for proper installation and
adjustment so as to prevent an excessive
microwave leakage.
3. When mounting the door to the oven, be sure to
adjust the door parallel to the bottom line of the
oven face plate by moving the upper hinge and
lower hinge in the direction necessary for
proper alignment.
Key Door
Spring
4. Adjust so that the door has no play between the
inner door surface and oven front surface. If the
door assembly is not mounted properly,
microwave energy may leak from the space
between the door and oven.
5. Do the microwave leakage test.
4-4 Replacement of Fuse
1. Disconnect the oven from the power source.
2. Remove the 10A fuse in the Noise filter.
3. When replacing the 10A fuse, be sure to use an
exact replacement part. If new 10A fuse blows
out again after replacement, check the primary
interlock switch, door sensing switch and
interlock monitor switch.
4. When the above three switches operate properly,
check if any other part such as the control circuit
board, blower motor or high voltage
transformer is defective.
4-5 Replacement of Drive Motor
1. Take out the glass tray, guide roller and coupler
from cavity.
Drive Motor
Screw
2. Turn the oven upside down to replace the drive motor.
3. Remove a screw securing the drive motor cover.
4. Disconnect all the lead wires from the drive motor.
5. Remove screws securing the drive motor to the
cavity.
Thermo
Switch
6. Remove the drive motor.
7. When replacing the drive motor, be sure to
remount it in the correct position.
Drive Motor Cover
Base Plate
8. Connect all the leads to the drive motor.
9. Screw the deive motor cover to the base plate
with a screw driver.
10. Remount the coupler in the correct position.
Samsung Electronics
4-3
Download from Www.Somanuals.com. All Manuals Search And Download.
Disassembly and Reassembly
4-6 Replacement of Control Circuit Board
4-6-1 Removal of Control Box Assembly
1. Be sure to ground any static electric charge in
your body and never touch the control circuit.
2. Disconnect the connectors from the control
circuit board.
Screw
3. Remove screws securing the control box
assembly.
4. Remove the screw securing the ground tail of
the keyboard.
Control Box
4-6-2 Removal of P.C.B Assembly
1. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of
membrane panel.
2. Remove screws securing the control circuit
board.
FPC Connector
Screw
3. Lift up the control circuit board from the Ass'y
control box.
4. When reconnecting the FPC connector, make
sure that the holes on the connector are properly
engaged with the hooks on the Plastic Fastener.
4-6-3 Removal of Window Display & Membrane Panel
1. Window display should not be disassembled as
its mounting tabs will be broken. If repair work
is difficult, replace with Ass'y control panel.
Window
Display
2. The membrane key board is attached to the
escutcheon base with doublefaced adhesive
tape. Therefore, applying hot air such as using
of hair dryer is recommended for smoother
removal.
3. When installing new membrane key board,
make sure that the surface of escutcheon base is
cleaned sufficiently so that any problems
(shorted contacts or uneven surface) can be
avoided.
Membrane
Panel
4-4
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
5. Alignment and Adjustments
PRECAUTION
1. High voltage is present at the high voltage terminals during any cook cycle.
2. It is neither necessary nor advisable to attempt measurement of the high voltage.
3. Before touching any oven components or wiring, always unplug the oven from its power source and discharge the high voltage
capacitor.
5-1 High Voltage Transformer
1. Remove connectors from the transformer terminals
Filament Terminals
and check continuity.
2. Normal resistance readings are as follows:
MODEL
CE745GR
Secondary
Filament
Primary
103.2Ω ¡ 10%
Shows Continuity
1.61Ω ¡ 10%
Primary
Terminals
(Room temperature = 20ûC)
5-2 Low Voltage Transformer
1. The low voltage transformer is located on the
Terminals
Resistance
control circuit board.
2. Remove the low voltage transformer from the
PCB Ass'y and check continuity.
3. Normal resistor reading is shown in the table.
1~2(Input)
4~5(Output17V)
7~8(Output2.9V)
1149Ω
12.26Ω
2.574Ω
5-3 Magnetron
1. Continuity checks can indicate only an open
Magnetron Antenna
filament or a shorted magnetron. To diagnose an
open filament or shorted magnetron :
Gasket Plate
2. Isolate the magnetron from the circuit by
disconnecting its leads.
3. A continuity check across the magnetron filament
terminals should indicate one ohm or less.
4. A continuity check between each filament terminal
and magnetron case should read open.
Cooling Fins
Samsung Electronics
5-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Alignment and Adjustments
5-4 High Voltage Capacitor
1. Check continuity of the capacitor with the meter set at the highest resistance scale.
2. Once the capacitor is charged, a normal capacitor shows continuity for a short time, and then indicates 9MΩ.
3. A shorted capacitor will show continuous continuity.
4. An open capacitor will show constant 9MΩ.
5. Resistance between each terminal and chassis should read infinite.
5-5 High Voltage Diode
1. Isolate the diode from the circuit by disconnecting its leads.
2. With the ohm-meter set at the highest resistance scale, measure across the diode terminals. Reverse the
meter leads and read the resistance. A meter with 6V, 9V or higher voltage batteries should be used to
check the front-to back resistance of the diode (otherwise an infinite resistance may be read in both
directions). The resistance of a normal diode will be infinite in one direction and several hundred KΩ in
the other direction.
5-6 Main Relay and Power Control Relay
1. The relays are located on the PCB Ass'y. Isolate them from the main circuit by disconnecting the leads.
2. Operate the microwave oven with a water load in the oven. Set the power level set to high.
3. Check continuity between terminals of the relays after the start pad is pressed.
5-7 Adjustment of Primary Switch, Door Sensing Switch and Monitor Switch
Precaution
For continued protection against radiation hazard, replace parts in accordance with the wiring diagram and be sure to use the
correct part number for the following switches: Primary and door sensing switches, and the interlock monitor switch (replace all
together). Then follow the adjustment procedures below. After repair and adjustment, be sure to check the continuity of all
interlock switches and the interlock monitor switch.
1. When mounting Primary switch and Interlock
Monitor switch to Latch Body, consult the
figure.
Primary Interlock Switch
2. No specific adjustment during installation of
Primary switch and Monitor switch to the latch
body is necessary.
3. When mounting the Latch Body to the oven
assembly, adjust the Latch Body by moving it so
that the oven door will not have any play in it.
Check for play in the door by pulling the door
assembly. Make sure that the latch keys move
smoothly after adjustment is completed.
Completely tighten the screws holding the Latch
Body to the oven assembly.
Interlock Monitor
Switch
Lever Door
Body Latch
Door Sensing
Switch
4. Reconnect to Monitor switch and check the
continuity of the monitor circuit and all latch
switches again by following the components test
procedures.
Door Open
Door Closed
0
Primary switch
∞
0
∞
5. Confirm that the gap between the switch
housing and the switch actuator is no more than
0.5mm when door is closed.
Monitor switch (COM-NC)
Door Sensing S/W
∞
0
5-2
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
Alignment and Adjustments
5-8 Output Power of Magnetron
CAUTION
MICROWAVE RADIATION
PERSONNEL SHOULD NOT ALLOW EXPOSURE TO MICROWAVE RADIATION FROM MICROWAVE GENERATOR OR OTHER PARTS
CONDUCTING MICROWAVE ENERGY.
The output power of the magnetron can be measured by performing a water temperature rise test.
Equipment needed :
* Two 1-liter cylindrical borosilicate glass vessel (Outside diameter 190 mm)
* One glass thermometer with mercury column
NOTE: Check line voltage under load. Low voltage will lower the magnetron output. Make all temperature
and time tests with accurate equipment.
1. Fill the one liter glass vessel with water.
2. Stir water in glass vessel with thermometer, and record glass vessel's temperature ("T1", 10±1ûC).
3. After moving the water into another glass vessel, place it in the center of the cooking tray. Set the oven to high
power and operate for 51seconds exactly. (2 seconds included as a holding time of magnetron oscillation:)
4. When heating is finished, stir the water again with the thermometer and measure the temperature ("T2").
5. Subtract T1 from T2. This will give you the water temperature rise. (∆T)
6. The output power is obtained by the following formula;
4.187 x 1000 x ∆T+0.88xMcx(T2-T0) 49.25: Heating Time (sec)
Output Power =
4.187 : Coefficient for Water
49.25
1000 : Water (cc)
∆T : Temperature Rise (T2-T1)
Mc : Cylindrical borosilicate glass weight
To : Room temperature.
7. Normal temperature rise for this model is 9ûC to 11ûC at 'HIGH'.
NOTE 1: Variations or errors in the test procedure will cause a variance in the temperature rise.
Additional power test should be made if temperature rise is marginal.
NOTE 2: Output power in watts is computed by multiplying the temperature rise (step 5) by a factor of 85
times the of centigrade temperature.
5 9 Leakage Measuring Procedure
5-9-1 Record keeping and notification after measurement
1) After adjustment and repair of a radiarion
preventing device, make a repair record for the
measured values, and keep the data.
2) If the radiation leakage is more than 5 mW/§† after
determining that all parts are in good condition,
functioning properly and the identical parts are
replaced as listed in this manual notift that fact to ;
J.V.SAMSUNG SERVICE LTD.
MARSHAL ZHUKOU.,1.OFFICE 201
123308,MOSCOW,RUSSIA
5-9-2 At least once a year have the microwave energy
survey meter checked for accuracy by its
manufacturer.
Samsung Electronics
5-3
Download from Www.Somanuals.com. All Manuals Search And Download.
Alignment and Adjustments
5-10 Microwave Heat Distribution - Heat Evenness
The microwave heat distribution can be checked indirectly by measuring the water temperature rise at
certain positions in the oven:
1. Prepare five beakers made of 'Pyrex', having 100 milliliters capacity each.
2. Measure exactly 100milliliters off water load with a measuring cylinder, and pour into each beaker.
3. Measure the temperature of each water load. (Readings shall be taken to the first place of decimals.)
4. Put each beaker in place on the cooking tray as illustrated in figure below. Start heating.
5. After heating for 2 minutes, measure the water temperature in each beaker.
6. Microwave heat distribution rate can be calculated as follows:
D
Minimum
Beaker
D
Temperature Rise
Heat Distribution =
X 100(%)
Maximum
Temperature Rise
D/4
The result should exceed 65%.
D/4
D/4
D/4
Cooking Tray
5-4
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
6. Troubleshooting
PRECAUTION
1. CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.
2. BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.
3. DISCHARGE THE HIGH VOLTAGE CAPACITOR.
4. WHEN CHECKING THE CONTINUITY OF THE SWITCHES OR TRANSFORMER, DISCONNECT ONE LEAD WIRE FROM THESE
PARTS AND THEN CHECK CONTINUITY WITHOUT THE POWER SOURCE ON. TO DO OTHERWISE MAY RESULT IN A FALSE
READING OR DAMAGE TO YOUR METER.
5. DO NOT TOUCH ANY PART OF THE CIRCUIT OR THE CONTROL CIRCUIT BOARD, SINCE STATIC DISCHARGE MAY DAMAGE IT.
ALWAYS TOUCH GROUND WHILE WORKING ON IT TO DISCHARGE ANY STATIC CHARGE BUILT UP.
6-1 Electrical Malfunction
SYMPTOM
Oven is dead.
CAUSE
CORRECTIONS
1. Open or loose lead wire harness
2. Open thermal cutout (Magnetron)
Check fan motor when thermal cutout is defective.
Fuse is OK.
No display and no operation at all. 3. Open low voltage transformer
4. Defective Ass'y PCB
Check Ass'y PCB when LVT is defective.
No display and no operation at all. 1. Shorted lead wire harness
Check adjustment of primary, interlock monitor,
Fuse is blown.
2. Defective primary latch switch (NOTE 1) door sensing switch.
3. Defective monitor switch (NOTE1)
4. Shorted HVCapacitor
5. Shorted HVTransformer (NOTE2)
NOTE 1: All of these switches must be replaced at the same time.
(refer to adjustment instructions)
Check continuity of power relay contacts and if it has continuity, replace power
relay also.
NOTE 2: When HVTransformer is replaced, check diode and magnetron also.
Oven does not accept
key input (Program)
1. Key input is not in-Sequence
2. Open or loose connection of membrane
key pad to Ass'y PCB
Refer to operation procedure.
3. Shorted or open membrane panel
4. Defective Ass'y PCB
Replace PCB main.
1. Off-alignment of latch switches
2. Open or loose connection of high voltage
circuit especially magnetron filament
circuit
Adjust door and latch switches.
NOTE: Large contact resistance will bring
lower magnetron filament voltage and
cause magnetron to lower output and/or
intermittent oscillation.
3. Defective high voltage components
H.V.Transformer
Timer starts countdown but no
microwave oscillation.
(No heat while oven lamp and
fan motor turn on.)
Check high voltage component according to
component test procedure and replace if it is
defective.
H.V.Capacitor
H.V.Diode,H.V.Fuse
Magnetron
4. Open or loose wiring of power relay
5. Defective primary latch switch
6. Defective power relay or Ass'y PCB
Replace PCB main.
Samsung Electronics
6-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Troubleshooting
6-1 Electrical Malfunction(continued)
SYMPTOM
CAUSE
CORRECTIONS
Oven lamp and fan motor turn on
1. Misadjustment or loose wiring
of primary latch switch
Adjust door and latch switches.
2. Defective primary latch switch
Oven can program but timer
does not start.
1. Open or loose wiring of secondary
interlock switch
2. Off-alignment of primary interlock
3. Defective secondary interlock S/W
Adjust door and interlock switches.
Consult electrician.
Microwave output is low;.
Oven takes longer time to
cook food.
1. Decrease in power source voltage.
2. Open or loose wiring of magnetron
filament circuit. (Intermittent oscillation))
3. Aging of magnetron
Fan motor turns on when plugged in
Loose wiring of door sensing switch
Defective Ass'y PCB
Check wire of door sensing switch.
Replace PCB main.
Oven does not operate and return
to the plugged in mode.
Loud buzzing noise can be heard.
1. Loose fan and fan motor
2. Loose screws on H.V.Transformer
3. Shorted H.V.Diode
Tighten screws of fan motor.
Tighten screws of H.V.Transformer.
Replace H.V.Diode.
Turntable motor does not rotate.
1. Open or loose wiring of turntable motor.
2. Defective turntable motor.
Check the wire of turntable motor
Replace turntable motor.
Oven stops operation during cooking
1. Open or loose wiring of primary
interlock switch
Adjust door and latch switches.
2. Operation of thermal cutout(Magnetron)
Sparks
1. Metallic ware or cooking dishes
touching on the oven wall.
Inform the customer.
2. Ceramic ware trimmed with gold or
silver powder also causes sparks.
Do not use any type of cookware with
metallic trimming.
Uneven cooking
Uneven intensity of microwave due to
its characteristics.
Wrap thinner parts of the food with
aluminum foil.
Use plastic wrap or cover with a lid.
Stir once or twice while cooking
foods such as soup, cocoa, or milk.
Noise from the turntable motor
when it starts to operate.
Noise may result from the motor.
Replace turntable motor.
6-2
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
7. Exploded Views and Parts List
7-1 Exploded Views
D5
M1
M3
D1
M2
D7
M13
M7
D4
M12
M6
M4
D6
M35
D2
M9
M5
D3
M10
M8
M36
M11
M17
M34
M14
M15
M37
M16
M33
M20
M18
M21
M32
M22
B2
M19
M31
B1
M30
B3
M27
M38
M29
B5
B4
M24
M25
M23
C4
M26
C3
C5
C6
M43
M28
C1
M39
M40
M41
C2
M44
M42
Samsung Electronics
7-1
Download from Www.Somanuals.com. All Manuals Search And Download.
Exploded Views and Parts List
7-2 Main Parts List
Ref. No.
Parts No.
Description/Specification
Q'ty
Remarks
OLD PARTS NO.
M 1
M 2
M 3
M 4
M 5
M 6
M 7
M 8
M 9
DE70-30032X
DE63-90150A
DE61-50323A
DE61-30008A
DE61-70060A
DE47-70072A
DE60-40009B
DE63-20017A
DE61-50021A
PANEL-OUTER;T0.6 W351.2 L1010 WHT-COATIN
CUSHION-RUBBER;DFA20 T2 W100 L140 BLK
BRACKET-UPPER;ALSTAR T0.6 W385 L205 M624
SUPPORTER-HEATER;ALUMINA T12 CE745G
SPRING-PLATE;SK-5 T0.5
HEATER-GRILL;230V 1100W 47.OHM 6.25
WASHER-TEFLON;SLOT ID22.2 OD28 T1.2 TEFL
GASKET-HEATER;BRASS T1.5 OD30.5 ID22.5
BRACKET-FLANGE;SECC1 T0.8 32 32
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
73011-0243-00
76674-232-810
70534-0004-02
73404-0014-00
M 10 DE61-50027A
M 11 DE61-50025A
M 12 DE39-20058C
M 13 DE71-60298A
M 14 DE91-40095A
M 15 DE31-30031A
M 16 DE47-20009A
M 17 DE03-30035A
M 18 4713-001004
M 19 DE71-60010A
M 20 DE61-50129A
M 21 DE93-20001A
M 22 DE66-90013A
M 23 DE91-70061B
M 24 DE61-50106A
M 25 DE91-70065A
M 26 2501-001014
M 27 DE26-10099A
M 28 DE61-40017A
M 29 DE80-10003A
M 30 DE31-10154A
M 31 DE47-20008A
M 32 DE71-60013A
M 33 DE61-80004A
M 34 DE61-80005A
M 35 DE47-20174A
M 36 DE65-20014A
M 37
BRACKET-HEATER;BSS2-A T(1.0) W(51) L(55)
BRACKET-EARTH;BSS2-A T1.0 CE745G
ASSY POWER CORD;KKP-4819D/B232 250V16A L
COVER-BACK;SECC T0.6 W273 L633 M6Q45
ASSY NOISE FILTER;SN-E10D(N) 250V 10A “2
FAN-MOTOR;SMF745EA 230V/50HZ ASSY-FAN-MO
THERMOSTAT;CS-7SA(160/60)187Y 250V7.5A 1
MAGNETRON;OM75PH((31)ESS
LAMP-INCANDESCENT;230V,-,40W,ORG,-,-,25x
COVER-AIR;PP(TB53) T1.7 WHT 64G M745
BRACKET-MOUNTING;SECC T0.8 W24 L316 M624
ASSY BODY LATCH;2ND-W1 M97G45/M9745
LEVER-DOOR;POM(F20-01) NTR MW5630T
ASSY-H.V.FUSE;THV060T-0750-H 5KV0.75A RE
BRACKET-HVC;SECC T0.8 W31 L125.8
73312-0184-001
77059-0034-00
73013-0342-00
71533-0015-00
79163-0252-01
73013-0194-00
79169-0153-00
ASSY-HVD;BMP28 SEMA 12KV SUMI
C-OIL;HCH212105C 1.05UF,2100V 35X54X85,2
TRANS-H.V;SHV-745EG1 230V 50HZ 2200V DPC
FOOT;PP(A353) BLK MW5630T
73004-0007-00
BASE-PLATE;SGCC1-Z T0.8 W340 L550 M745
MOTOR-DRIVE;M2HJ49ZR02,ST-16 21V 5/6
THERMOSTAT;CS-7S(100/60)187Y 250V7.5A 10
COVER-CEILING;MICA T0.5 W52 L118 CE745G
HINGE-LOWER;SCP1 T2.3 ZN-COATING BLK
HINGE-UPPER;SCP1 T2.3 BLK ZN-COATING
THERMOSTAT;NT-101NA 8XH 120 110 23.8MM
CABLE CLAMP;DA-6N NY-66
76449-0003-00
79204-0381-00
ASSY DOOR;PUSH WHT CE745GR
M 38
ASSY CONTROL-BOX;230V-50HZ CE745GR(CIS)
TRAY-COOKING;GLASS T5.0 PI288 780G M745
ASSY-GUIDE ROLLER;MW4370W
M 39 DE74-20102B
M 40 DE92-90436A
M 41 DE67-60002A
M 42 DE74-70071A
M 43 DE39-40409A
M 44 DE39-40568A
COUPLER;PPS 5GR BRN M97G45
RACK-WIRE;MSWR3 PI3 PI230 HI80 SNC2
ASSY WIRE HARNESS-E;230V50HZ M9G45 CTW
ASSY WIRE HARNESS-A;230V50HZ CE745G/CE94
: Warning
: Option Parts
:Electrostatically Sensitive Devices
Samsung Electronics
7-2
Download from Www.Somanuals.com. All Manuals Search And Download.
Exploded Views and Parts List
7-3 Door Parts List
Ref. No.
Parts No.
Description/Specification
DOOR-A;ABS(VH-080) T3.0 WHT
Q'ty Remarks Old Parts No.
D 1
D 2
D 3
D 4
D 5
D 6
D 7
DE64-40007A
DE64-40006A
DE61-70033A
DE67-20004D
DE92-50126B
DE64-40008B
DE01-00003B
1
1
DOOR-KEY;POM(TC3005) T2.0 12GR BLK CE9
SPRING-KEY;ES HSWR10 PI0.6 D6.0 L22.3 BL
SCREEN-DOOR;PC T1.5 W173.6 L373.5 WHT CE
ASSY DOOR-E;COATING BLK CE745G
1
1
1
1
1
72724-0040-00
DOOR-C;PP T1.5 W L G BLK CE745G
FILM-DOOR;PC T0.2 W143 L265 TRP CE745G
7-4 Control Parts List
Ref. No.
Parts No.
Description/Specification
Q'ty Remarks
Old Parts No.
C 1
C 2
C 3
C 4
C 5
C 6
DE66-20006A
DE61-70076A
DE34-10007C
DE72-70003A
DE67-40002A
DE91-10377A
BUTTON-PUSH;RESIN-ABS(HR-0370U) P/WHT M9
SPRING-BUTTON;HSWR PI0.6
1
1
1
1
1
1
76674-239-310
SWITCH-MEMBRANE;PET 230V50HZ W89.7 L161.
CONTROL-PANEL;ABS(VH-080) WHT
WINDOW-DISPLAY;RESIN-ACRYLIC T2.3 M945(I
ASSY P.C.B-MAIN;230V50HZ NS V.F.D CE945G
7-5 Body Latch Parts List
Ref. No.
Parts No.
Description/Specification
Q'ty Remarks Old Parts No.
B 1
B 2
B 3
B 4
B 5
DE66-40001A
3405-000178
3405-000175
3405-000178
DE66-90001A
LATCH-BODY;POM(F20-02) 40GR NTR
1
SWITCH-MICRO;VP-533A-OF-PS(T85) 250V,15A
SWITCH-MICRO;VP-531A-OF(T85) 250V,15A,20
SWITCH-MICRO;VP-533A-OF-PS(T85) 250V,15A
LEVER-SWITCH;P.O.M(F20-02) 2 6 NTR 2ND-W
1
1
1
1
73579-203-207
73579-203-278
73579-203-207
Samsung Electronics
7-3
Download from Www.Somanuals.com. All Manuals Search And Download.
Exploded Views and Parts List
7-6 Standard Parts List
Parts No.
Description / Specification
Q'ty Remarks
Old Parts No.
DE60-10012A
DE60-10012A
DE60-10012A
DE60-10122A
DE60-10122A
DE60-10098A
DE60-10082I
DE60-10082I
DE60-10080A
DE60-10080A
DE60-10069A
DE02-00029A
DE60-10069A
DE60-10012A
DE60-10098A
DE60-10098A
DE60-10082J
DE60-10082I
DE60-10082I
DE60-10012A
DE60-10098A
DE60-10052A
DE60-10018A
DE60-10013A
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2
SCREW-TAP TH;TAP TH 2-4X8 FE FN
1
1
2
2
2
2
4
4
4
4
1
1
3
2
1
1
1
2
2
1
2
2
2
2
NO-FIL
P-CO-E
HI-UPP
C-CEIL
B/HEAT
MO/DRI
OUT-PN
B-PLTE
MGT
70504-0002-00
70504-0002-00
70504-0002-00
77128-240-085
77128-240-085
A0103-0010
SCREW-TAP TH;TAP TH 2-4X8 FE FN
SCREW-ASSY TAPTITE;PH TC M4X8 SWRCH18A Z
SCREW-A;2S-4X12 FEFZY
77154-203-8201
77154-203-8201
77154-202-910
77154-202-910
77128-540-101
70859-800-311
77128-540-101
70504-0002-00
A0103-0010
SCREW-A;2S-4X12 FEFZY
SCREW-WASHER;M5 L12 2S
SCREW-WASHER;M5 L12 2S
HVT
SCREW-TAP TH;TH M4 L10 FRFZY
CV/AIR
TR-CUS
B/UPP
TAPE-SCOTCHPAR;POLYESTER 3M-893 W50
SCREW-TAP TH;TH M4 L10 FRFZY
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2
SCREW-ASSY TAPTITE;PH TC M4X8 SWRCH18A Z
SCREW-ASSY TAPTITE;PH TC M4X8 SWRCH18A Z
SCREW-TAPPING;TH 2S-4X8 MSWR3 ZPC YEL WS
SCREW-A;2S-4X12 FEFZY
HI-LOW
MEM-PN
CV-TCO
B/HVC
BD-LAT
CON-PA
C/GE-M
MGT-TC
GR-TCO
B/EATH
CV/BLW
A0103-0010
77154-203-8401
77154-203-8201
77154-203-8201
70504-0002-00
A0103-0010
SCREW-A;2S-4X12 FEFZY
SCREW-TAP TITE;TH + 3 M4 L10 SWR10 ZPC2
SCREW-ASSY TAPTITE;PH TC M4X8 SWRCH18A Z
SCREW-TAP PH;PH M4 L8 FEFZY
77108-540-081
70504-0019-00
70504-0004-00
SCREW-ASSY MACHINE;PH M4X0.7P 8 MSWR10 S
SCREW-ASSY TAP;TH 2S 4 L12 MSWR3 ZPC3 FI
7-4
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
8. P.C.B Diagrams
8-1 P.C.B Diagrams
Samsung Electronics
8-1
Download from Www.Somanuals.com. All Manuals Search And Download.
P.C.B Diagrams
8-2 P.C.B Parts List
Parts No.
Description / Specification
Q'ty
Remarks
0401-001002
0402-000559
0501-000283
0501-000388
2001-000003
2001-000037
2001-000273
2001-000290
2001-000429
2001-000613
2001-000776
2001-000786
2011-001043
2202-000780
2401-000247
2401-000353
2401-000914
2401-001412
3501-001014
3501-001015
3501-001016
3708-000528
3711-000203
3711-000881
A1018-0067
A1100-1049
A4060-0008
A4060-0009
A4106-0154
A6010-0461
B1283-0030
DE07-10081A
DE09-30479A
DE13-20009A
DE26-20141A
DE30-20016A
DE39-60001A
DE60-60012A
DE61-90004A
DIODE-SWITCHING;1N4148M,100V,200mA,500mW
DIODE-RECTIFIER;D4G,400V,1A,T-1
16
3
1
1
2
1
1
6
7
1
1
12
1
6
1
1
1
1
1
1
2
1
1
1
1
6
5
1
3
1
1
1
1
1
1
1
26
8
1
D5~20
D01,2,4
TR01
TR-SMALL SIGNAL;KSA539-Y,PNP,400mW,TO-92
TR-SMALL SIGNAL;KSC815-Y,NPN,400mW,TO-92
R-CARBON;330ohm,5%,1/8W,AA,TP,1.8x3.2mm
R-CARBON(S);330ohm,5%,1/2W,AA,TP,2.4x6.4
R-CARBON;100Kohm,5%,1/8W,AA,TP,1.8x3.2m
R-CARBON;10Kohm,5%,1/8W,AA,TP,1.8x3.2mm
R-CARBON;1Kohm,5%,1/8W,AA,TP,1.8x3.2mm
R-CARBON;3.9Kohm,5%,1/8W,AA,TP,1.8x3.2m
R-CARBON;470ohm,5%,1/2W,AA,TP,3.3x9mm
R-CARBON;47Kohm,5%,1/8W,AA,TP,1.8x3.2mm
R-NETWORK;47Kohm,5%,1/8W,A,SIP,8P,BK
C-CERAMIC,MLC-AXIAL;UP050F104Z 100NF,+80
C-AL;1SA1ANB107MAN 100UF,20%,10V,GP 6.3X
C-AL;1SA1HWB101M 100UF,20%,50V,GP 10X16X
C-AL;CESSL1C220M0511AA 22UF,20%,16V,GP 5
C-AL;1SG1VFB477MAN 470UF,20%,35V,GP 10X1
RELAY-POWER;OM1F-S-124LM 24V,21.8MA,17A
RELAY-POWER;OZF-S-124LM1P 24V,21.8MA,16A
RELAY-MINIATURE;JV24-KT 24V,12.5MA,5A 1F
CONNECTOR-FPC/FC/PIC;FCZ254-13SL,BLK 13P
CONNECTOR-HEADER;YW396-03AV WHT STRAIGHT
CONNECTOR-HEADER;SMW250-03,WHT BOX,3P,1R
R-NETWORK;RN 1/8 X 6P 473-J T MHR5A473J
C-CERAMIC;CC OA CH 50V T 220-J 3.5X1.9 U
TR-W/RESISTOR;KSR1005 300MW 100MA 50V EB
TR-W/RESISTOR;KSR2005 300MW -100MA -50V
DIODE-ZENER;TZP5.1B 5.1/5.7V 40MA T 1W
CONNECTOR-WAFER;YW396-04V WHT
TR03
R03,04
R02
R12
R9,10,14,15,16,43
R05~08,17~19
R11,13,20,21,22,23,42
R01
R30~41
AR01
C6,9,10,11,12,15
C04
C02
C05
C01
RY01
RY04
RY02,03
CN02
CN01
CN03
AR02
C7,8,16~19
TR2,4~8
TR09
ZD1,2,3
CN04
RESONATOR-CERAMIC;4.19MHZ 4.19MSTAR 2/CN
V.F.DISPLAY;SVM-4SM03 GRN/RSHORG 4 51 81
IC-MCU;KS56C671-43 DIP CE945G/CE745G
IC;KA7533 DIP
X-TAL
VFD
IC01
IC02
TRANS-L.V;SLV-945E 230V 50HZ AC17/2.9V
BUZZER;CBE2220BA STICK
LVT1
BUZ1
WIRE-SO COPPER;PI0.6 SN T 52MM
J01~26
E1~8
PIN-EYELET;ID2.1 OD2.5 L3.0 SN BSP T0.25
HOLDER-DIGITRON;NYLON#66 1.5 85 36 8GR B
8-2
Samsung Electronics
Download from Www.Somanuals.com. All Manuals Search And Download.
9. Schematic Diagrams
9-1 Schematic Diagrams
MGT
TCO
ASSY CHOKE P.C.B
H.V.TRANS
230V
PRIMARYS/W
BLK
BLK
BLK
BLK
BLK
COM
BLK
BRN
BRN
BLU
ORG
230V40W
POWER
CORD
230V/50HZ
H.V.DIODE
H.V.FUSE
LAMP
YEL
L
230V
BLU
21V
COM
NC
(0.75A-CE745G/
0.8A-CE945G)
YEL
FM
DM
0V
NO
H.V.CAPACITOR
ORG
WHT
BLK
BLU
WHT
BLK
WHT
INRUSH RELAY
BLU
MONITOR FUSE
(250V1.6A)
RESISTOR
BLU
0V
FA
F
YEL
MAGNETRON
WHT
WHT
POWER RELAY
(SECONDARY INTERLOCK)
DOOR SENSING
S/W
MAIN
RELAY
POWER
RELAY
INRUSH
RELAY
GRILL
RELAY
L.V.T
KEY BOARD
1.INPUT : 230V
2.DOOR : OPEN
3.LAMP : ON
CONDITION OF OVEN
DOOR IS OPENED
COOK OFF
4.
5.
: P.C.B PATTERN
: P.C.B IN/OUT POINT
A S S Y M A I N P.C.B
WIRING COLOR
BRN : BROWN
WHT : WHITE
RED : RED
BLK : BLACK
Y/G : YELLOW GREEN
BLU : BLUE
ORG : ORANGE
YEL : YELLOW
NC
NO
WHT BLK
BLK BLU
BLK
ORG
ORG
NO
NO
COM
COM
COM
BLK BLK
BLK
PRIMARY LATCH
SWITCH
DOOR SENSING
SWITCH
MONITOR
SWITCH
MAGNETRON
HIGH VOLTAGE
DIODE
TO CHASSIS
F
FA
HIGH VOLTAGE CAPACITOR
RED
RED
RED
H.V.FUSE
BLK
SYMBOL COLOR
BRN BROWN
WHT
RED
BLK
RED
BLU
BLACK
RED
BLUE
HIGH VOLTAGE
TRANSFORMER
Samsung Electronics
9-1
Download from Www.Somanuals.com. All Manuals Search And Download.
|