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BASIC: ME179KFETSR
MODEL: MC17F808KDT
MODEL CODE: MC17F808KDT/AA
1. Precaution
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagrams
6. Wiring Diagrams
Refer to the service manual in the GSPN(see rear cover) for the more information.
1. Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1-1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1-2 Special High Voltage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2-2 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3-1 Disassembly of Assembly Grille and Panel Outer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3-2 Replacement of Control Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-3 Replacement of High Voltage Transformer and HVC and Base bottom . . . . . . . . . . . . . . . . . . . . . . . . . . .12
3-4 Replacement of Magnetron . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3-5 Replacement of Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14
3-6 Replacement of Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3-7 Replacement of Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3-8 Replacement of Upper Duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3-9 Replacement of Cooktop lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3-10 Replacement of Oven Light . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
3-11 Replacement of Convection Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
3-12 Replacement of Grill Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
3-13 Replacement of Thermal Sensor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
3-14 Replacement of Damper Motor & Damper Motor Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
3-15 Replacement of Fan Motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4-1 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26
4-2 Electrical Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
5. PCB Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5-1 PCB Diagrams(Main) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5-2 PCB Diagrams(Sub). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6-1 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
6-2 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
2
1. Precaution
3
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 13. Design Alteration Warning: Use exact replacement
procedures described in this manual. This product
complies with Federal Performance Standard 21 drawings and parts lists of this manual. This is
CFR especially important for the Interlock switches,
2. Microwave emission check should be performed to described above. Never alter or add to the
prior to servicing if the oven is operative. mechanical or electrical design of the MWO.
Any design changes or additions will void the
3. If the oven operates with the door open :Instruct
manufacturer's warranty. Always unplug the unit's
the user not to operate the oven and contact
AC power cord from the AC power source before
the manufacturer and the center for devices and
attempting to remove or reinstall any component or
radiological health immediately.
assembly.
4. Notify the Central Service Center if the microwave
14. Never defeat any of the B+ voltage interlocks. Do not
leakage exceeds 5 mW/cm2.
apply AC power to the unit (or any of its assemblies)
5. Check all grounds. unless all solid-state heat sinks are correctly
6. Do not power the MWO from a "2-prong" AC cord. installed.
Be sure that all of the built-in protective devices are 15. Some semiconductor ("solid state") devices
replaced. Restore any missing protective shields. are easily damaged by static electricity. Such
7. When reinstalling the chassis and its assemblies, components are called Electrostatically Sensitive
be sure to restore all protective devices, including: Devices (ESDs). Examples include integrated
nonmetallic control knobs and compartment covers.
8. Make sure that there are no cabinet openings before handling any semiconductor components or
through which people --particularly children--might assemblies, drain the electrostatic charge from your
insert objects and contact dangerous voltages. body by touching a known earth ground.
Examples: Lamp hole,ventilation slots. 16. Always connect a test instrument's ground lead to
9. Inform the manufacturer of any oven found to have the instrument chassis ground before connecting the
emission in excess of 5 mW/cm2 ,Make repairs to positive lead; always remove the instrument's ground
bring the unit into compliance at no cost to owner lead last.
and try to determine cause. Instruct owner not to use 17. When checking the continuity of the witches or
oven until it has been brought into compliance. transformer, always make sure that the power is
CENTRAL SERVICE CENTER OFF, and one of the lead wires is disconnected.
10. Service technicians should remove their watches 18. Components that are critical for safety are indicated
while repairing an MWO. in the circuit diagram by shading, or .
11. To avoid any possible radiation hazard,replace parts 19. Use replacement components that have the same
in accordance with the wiring diagram. Also, use
only the exact replacements for the following parts:
Primary and secondary interlock switches, interlock not have the same safety characteristics as the
monitor switch.
12. If the fuse is blown by the Interlock Monitor Switch: NOTE : Connect the oven to a 20A. When
Replace all of the following at the same time: connecting the oven to a 15A,make sure that circuit
Primary, door sensing switch and power relay, as breaker can operate.
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.
4
1. Precaution
1-2 Special High Voltage Precautions
1. High Voltage Warning Do not attempt to measure any of
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 the picture)
2. The high-voltage capacitor remains charged about 30
seconds after disconnection. Short the negative terminal of
the high-voltage capacitor to to the oven chassis.
(Use a screwdriver.)
3.
tolerance, safety-related components and adjustments. If
of the special components.
PRECAUTION
There exists HIGH VOLTAGE ELECTRICITY with high current capabilities in the circuits of the HIGH
near these circuits with the oven energized.
PRECAUTION
Servicemen should remove their watches whenever working close to or replacing the magnetron.
PRECAUTION
Never touch any circuit wiring with your hand nor with uninsulated tool during operation.
5
2-1 Features
Product Features
The Stainless Steel (STSS) exterior delivers a luxurious look to your
Luxurious Look kitchen. The design matches perfectly with your other kitchen appliances,
providing a harmonious kitchen interior.
Depending on the duct location, you can set the orientation of the vent. You
Controllable Ventilation
can also select the ventilation power (High, Medium, Low, Off) depending
System
on your cooking selection.
LED lighting gently brightens every corner of your cook top.
LED Cook-top Lighting Low Power consumption and long life of Samsung LED light remarkably
save your energy.
Don't know how to cook? Samsung's new OTR auto cooking technology
Speed Cook, Smart Chef &
offers preset functions resulting in perfectly cooked dishes every time.
Auto Cook Menu
Simply select a cooking menu, and the cooking results will astound you.
With an informative VFD (Vacuum Fluorescent Display), your OTR lets you
VFD display
easily use all available functions.
Samsung's microwave and convection combination technology make you
Speedy Cooking
can cook faster up to twice.
With the 1.7 cu.ft capacity, it offers enough space to cook.
Big Interior Capacity
The big capacity combined with 950 watts of output achieves superior
For convenience
cooking results.
Samsung One Touch Filter systemTM can be ejected and loaded by One
Touch easily. It is also positioned in front of OTR eye-level. Easy to check
One Touch Easy Filter
It can be cleaned easily with water and soap at one, because its Washable
Filter consists of only one piece for your convenience.
The interior fully coated with Ceramic Enamel offers solid surface that
never scratches and cracks. So you can enjoy the same new interior even
after long use. Moreover, it prevents the bacteria and the sooth surface is
Ceramic coating easy to clean as well.
severe discoloration and cleaning issues. But the Ceramic Enamel Interior
prevents all of them.
The steam provided by steam clean system will soak the cavity surface.
Steam Clean
After using steam clean function, you can easily clean the cavity of oven.
You don't need to set either cooking time or power level. You can adjust
the Slim Fry cook category in user manual.
Slim Fry
You will use less oil compared to frying with oil fryer. Using this function,
you can feel that is much more healthy as you reduce use of oil.
6
2-2 Accessory
Item Description Code No. Q'ty
TRAY COOKING DE74-20016A 1
TRAY-CONVECTION DE63-00234A 1
ASSY-GUIDE ROLLER DE97-00368B 1
ASSY-HOOD DAMPER DE92-90242D 1
ASSY-HARD WARE DE92-90505E 1
FILTER AIR (INSTALLED) DE63-00196A 1
FILTER CHARCOAL DE63-00367D 1
ASSY WIRE RACK-HIGH DE97-00456A 1
ASSY WIRE RACK-MIDDLE DE97-00456B 1
ASSY WIRE RACK-LOW DE97-00456C 1
7
Basic Model New Model
Items
ME179KFETSR/AA MC17F808KDT/AA
Oven Cavity 1.7 1.7
10 power levels, 10 power levels,
Controls
including defrost including defrost
Timer 90 minutes 90 minutes
Power Source 120VAC, 60Hz 120VAC, 60Hz
Power consumption (Microwave) 1700 Watts 1700 Watts
Power consumption (Heater) 1750 Watts 1750 Watts
Power Output (Microwave) 950 Watts 950 Watts
Oven Cavity 201/8 X
105/16 X
14 201/8 X
105/16 X
14
Dimensions
Outside 297/8 X
1615/16 X
179/16 297/8 X
1615/16 X
179/16
(W x H x D inches)
Shipping 333/8 X
197/16 X
203/16 333/8 X
197/16 X
203/16
Net/Gross Weight 76.7 lbs / 86.6 lbs 76.7 lbs / 86.6 lbs
Export Zone USA USA
8
3. Disassembly and Reassembly
MAGNETRON, MOTOR ASSEMBLY, VENT BLOWER AND HIGH VOLTAGE TRANSFORMER
Oven must be removed from wall.
REMOVING OVEN FROM WALL (2 PEOPLE REQUIRED)
Oven is hooked on metal tabs at bottom of wall mounting plate and to cabinet by (3) top cabinet bolts.
3-1 Disassembly of Assembly Grille and Panel Outer
Parts Explanation Photo Explanation
1. Disconnect oven power.
2. Remove Grille.
Grille
1) Remove 2 screws
2) Slide the Grille to the left, then pull it
straght out.
1. Disconnect oven power.
2. Remove Grille.
3. Remove Screw.(7)
Panel Outer
4. Remove Screw.(5)
9
3. Disassembly and Reassembly
3-1 Disassembly of Assembly Grille and Panel Outer
Parts Explanation Photo Explanation
5. On right-hand side of the oven, remove 3
screws.
6. On the left-hand side of the oven, remove 2
screws.
7. Remove Screw.(2)
Panel Outer
8. Remove Panel Outer.
10
3. Disassembly and Reassembly
3-2 Replacement of Control Circuit Board
Parts Explanation Photo Explanation
1. Disconnect power and remove Grille.
2. Be sure to ground any static electric charge in
your body and never touch the control circuit.
Removal of
Control Box 3. Remove a screw securing the control box
assembly.
Assembly
4. Remove the earth screw and disconnect the
connectors from the control circuit board.
Make sure to note the positions of the
connectors for replacement.
1. Take out the Knob Dial.
2. Remove screw securing the Cover-PCB and
take out the Cover-PCB.
3. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of
membrane panel.
4. Remove screws(4) securing the Main control
circuit board(Main PBA).
5. Lift up the control circuit board(Main PBA) from
the Ass'y control box.
6. Remove screws(4) securing the Display
control circuit board(Display PBA).
Removal of 7. Lift up the control circuit board(Display PBA)
P.C.B Assembly from the Ass'y control box.
8. When reconnecting the FPC connector, make
sure that the holes on the connector are
properly engaged with the hooks on the Plastic
Fastener.
After reconnecting the connectors, make sure that
the connectors are connected securely on the
terminal of control circuit board by pulling the wires
lightly.
11
3. Disassembly and Reassembly
3-3 Replacement of High Voltage Transformer and HVC and Base bottom
Parts Explanation Photo Explanation
1. Disconnect Oven Power.
2. Remove Panel Outer , Grill and Control Box.
3. Discharge The High Voltage Capacitor.
ATTENTION : When discharge must become ground
High terminal of HVC and metal of around.
voltage
capacitor
4. Remove screws(2) and take out the bracket.
5. Disconnect the Lead Wire.
6. Take out the Bracket of High Voltage Capacitor.
7. Take out High Voltage Capacitor.
1. Remove Screw.(7)
Base 2. Disconnect Lamp
Bottom Housing.
3. Remove Base bottom.
1. Disconnect the Lead Wire.
HV Trans
2. Remove Screw.(4)
3. Take out the HV Trans.
12
3. Disassembly and Reassembly
3-4 Replacement of Magnetron
Parts Explanation Photo Explanation
Remove the magnetron including the shield
case, permanent magnet, choke coils and
capacitors (all of which are contained in one
assembly).
1. Disconnect all lead wires from the
magnetron.
2. Cut the rib of Bracket Duct Rear by using
Magnetron nippers.
3. Remove nuts (4) securing the magnetron
to the wave guide.
4. Take out the magnetron very carefully.
NOTE1: When removing the magnetron, make sure that it antenna does not hit any adjacent parts, or it may be
damaged.
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.
PRECAUTION
During replacement, be certain R.F. Anode gasket is in place around anode stub.
PERFORM MICROWAVE LEAKAGE TEST
13
3. Disassembly and Reassembly
3-5 Replacement of Door Assembly
Parts Disassembly Photo Explanation
Removal of 1. Open the Assembly Door by degree 90