BASIC:
SMH7185STG
MODEL:
SMH7187STG
MODEL CODE: SMH7187STG/XAA
1. Precaution
2. Product Specification
3. Disassembly and Reassembly
4. Troubleshooting
5. Exploded Views and Part List
6. PCB Diagrams
7. Wiring Diagrams
8. Schematic Diagrams
Refer to the service manual in the GSPN(see rear cover) for the more information.
• Contents
1. Precaution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1-1 Safety precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1-2 Special High Voltage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2. Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-1 Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2-2 Accessory. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-3 Table of Specifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Disassembly and Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3-1 Disassembly of Assembly Grille and Panel Outer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3-2 Replacement of High Voltage Transformer and HVC and Base bottom . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3-3 Replacement of Magnetron. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-4 Replacement of Door Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-5 Replacement of Fuse. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3-6 Replacement of Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3-7 Replacement of stirrer motor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3-8 Removal of stirrer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
3-9 Replacement of Control Circuit Board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
3-10 Replacement of Cooktop lamp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3-11 Replacement of Oven Light. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-1 Error Code Numbering Rule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-2 Error Code List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
4-3 Electrical Malfunction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5. Exploded Views and Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5-1 Exploded Views. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
5-2 Main Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5-3 Door Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
5-4 Control Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5-5 Standard Parts List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6. PCB Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
6-1 PCB Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
7. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
7-1 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8. Schematic Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
8-1 Schematic Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1. Precaution
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 (
)
13. Design Alteration Warning: Use exact replacement
parts only, i.e.,only those that are specified in
thedrawings 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. Always unplug the unit’s
AC power cord from the AC power source before
attempting to remove or reinstall any component or
assembly.
14. 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.
15. 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. Immediately
before handling any semiconductor components or
assemblies, drain the electrostatic charge from your
body by touching a known earth ground.
16. 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.
17. 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.
18. Components that are critical for safety are indicated
in the circuit diagram by shading,
or
.
19. 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.
NOTE : Connect the oven to a 20A. When
connecting the oven to a 15A,make sure that circuit
breaker can operate.
1. All repairs should be done in accordance with the
procedures described in this manual. This product
complies with Federal Performance Standard 21
CFR
2. Microwave emission check should be performed to
prior to servicing if the oven is operative.
3. If the oven operates with the door open :Instruct
the user not to operate the oven and contact
the manufacturer and the center for devices and
radiological health immediately.
4. Notify the Central Service Center if the microwave
leakage exceeds 5 mW/cm2.
5. Check all grounds.
6. 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.
7. When reinstalling the chassis and its assemblies,
be sure to restore all protective devices, including:
nonmetallic control knobs and compartment covers.
8. 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.
9. Inform the manufacturer of any oven foundto have
emission in excess of 5 mW/cm2 ,Make repairs to
bring the unit into compliance at no cost to owner
and try to determine cause. Instruct owner not to use
oven until it has been brought into compliance.
CENTRAL SERVICE CENTER
10. Service technicians should remove their watches
while repairing an MWO.
11. To avoid any possible radiation hazard,replace parts
in accordance with the wiring diagram. Also, use
only the exact replacements for the following parts:
Primary and secondary interlock switches, interlock
monitor switch.
12. If the fuse is blown by the Interlock Monitor Switch:
Replace all of the following at the same time:
Primary, door sensing switch and power relay, 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.
1. Precaution
1-2 Special High Voltage Precautions
1. High Voltage Warning Do not attempt to measure any 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 to the oven chassis. (Use a
screwdriver.)
3. High voltage is maintained within specified limits by closetolerance, safety-related components and adjustments. If
the high voltage exceeds the specified limits, check each
of the special components.
H . V . Capacitor
H . V . Diode
Short
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.
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.
2. Specifications
2-1 Features
Product Features
• Professional Design
Samsung New OTR with Stainless Steel, it has professional look
and the design matches great with other kitchen appliances, so that
it provides harmonious kitchen interior and finally completes total
kitchen solution.
• Turbo vent
With 400CFM ventilation power, New OTR can keep the comfortable
cooking condition by absorbing smoke and odor from cook-top.
Moreover, it provides the silent condition that is equivalent noise
level to other OTR with lower ventilation power.
The Strongest power without additional noise!
That’s the benefit you can feel from New OTR!
• Big Interior capacity for
convenience
With the 1.8 cu.ft capacity, it offers enough space to cook.
The big capacity combined with 1,100 watts of output achieves
superior cooking results.
• Auto Louver
(SMH7187STG Only)
Motorized Louver is opened automatically only when OTR is working.
Therefore, you can prevent the contamination and also clean the
OTR easily.
You don’t need to spend much time to clean the dirt in each grille.
With the convenience, it also provides neat appearance.
• Sensor cook
Don’t worry about failure of your cooking!
New OTR’s sensor technology offers the best dish.
Only thing you need to do is just select the cooking menu, and then
you will be satisfied with the cooking results by sensor cook.
• VFD display
With more informative VFD display, the OTR helps you use all the
function it has with ease.
2. Specifications
2-2 Accessory
Item
Description
Code No.
Q’ty
TRAY COOKING
DE74-20002C
1
ASSY-GUIDE ROLLER
DE97-00368A
1
ASSY-HOOD DAMPER
DE92-90242D
1
ASSY-HARD WARE
DE92-90505E
1
FILTER AIR
DE63-00196A
2
FILTER CHARCOAL
DE63-00367D
1
RACK-WIRE
DE75-00036A
1
2. Specifications
2-3 Table of Specifications
Items
Basic Model
New Model
SMH7185STG
SMH7187STG
1.8
1.8
1100
1650
1100
1650
Touch
Touch
1 Line VFD
1 Line VFD
99 min. 99 sec.
99 min. 99 sec.
Cavity Size (cu.ft.)
Power
120V / 60Hz Power Source
Output Power (Watts)
Power Consumption (Watts/Amp)
Characteristics
Control Method
Display
Cooking Timer
Power Level
10
10
Auto Defrost
Power
Power
Auto Reheat
Sensor
Sensor
Sensor Cook
Yes
Yes
Sensor (9)
Sensor (9)
Handy Helper
Yes
Yes
Kids’ Meals
Yes
Yes
Snack bar
Yes
Yes
Custom Cook
Yes
Yes
Brown
-
-
Combi
-
-
Convection
-
-
Speed cook
-
-
Yes
Yes
Various Cooking Modes
-
-
Convection Temperature
-
-
One Touch Instant Cook Pads
More/Less
Cooking Stages
3
3
One Minute Plus
Yes
Yes
-
-
Clock
Yes
Yes
Kitchen Timer
Yes
Yes
Help Screen
Yes
Yes
En / Fr / Sp
En / Fr / Sp
Kg / Lb
Kg / Lb
Word Prompting Speed Controls
-
-
Sound Changes
-
-
Yes
Yes
Time Plus
Language Option
Weight Option
Reminder End Signal On/Off
Child Safety Lock
Clock System Option (12 hrs / 24 hrs)
Daylight Savings Time Adjustment
Demonstration Mode
Numeric Pads
Yes
Yes
12 hrs
12 hrs
Yes
Yes
-
-
0-9
0-9
2. Specifications
Basic Model
New Model
SMH7185STG
SMH7187STG
Stirrer + Turntable
Stirrer + Turntable
Turntable On/Off
Yes
Yes
End Signal Sound
Yes
Yes
Items
Turntable Distribution
Special Function
Hood Ventilation
Vent Fan CFM
-
-
400
400
Vent Orientation
Vertical
Vertical
Vent Fan Control
Turbo / Hi / Low / Off
Turbo / Hi / Low / Off
Cooktop Lighting
Light (On / Night / Off)
Light (On / Night / Off)
Auto Night Light
No
No
Non Motorized Vent
Motorized Vent
1 Position 1 Rack
-
1 Position 1 Rack
-
Black/White
Epoxy
7/8
29 x 161/2 x 1515/32
24.2Kg / 53.35lbs
24.6kg/54.23lbs(STG)
Black/White
Epoxy
7/8
29 x 161/2 x 1515/32
24.2Kg / 53.35lbs
24.6kg/54.23lbs(STG)
333/8 x 1915/16 x 1913/32
333/8 x 1915/16 x 1913/32
330 (Jumbo)
330 (Jumbo)
26.7kg/58.86lbs
27.1kg/59.75lbs(STG)
26.7kg/58.86lbs
27.1kg/59.75lbs(STG)
Motor Vent
Accessories
Rack
Cook Book
Properties
Cabinet Colour
Cavity Interior
Cabinet Dimensions (W x H x D inches)
Net Weight (lb)
Shipping Properties
Shipping Dimensios (W x H x D inches)
Loading Q’ty (sets / 40ft)
Shipping Weight (lb)
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
Explaination Photo
Explaination
1. Disconnect oven power.
2. Remove Grille.
1) Remove 2 screws
2) Slide the Grille to the left, then pull it
straght out.
Grille
1. Disconnect oven power.
2. Remove Grille.
3. Remove Screw.(7)
Panel Outer
4. Remove Screw.(4)
10
3. Disassembly and Reassembly
3-1 Disassembly of Assembly Grille and Panel Outer
Parts
Explaination Photo
Explaination
5. Remove Screw.(4)
6. Remove Screw.(2)
Panel Outer
7. Remove Screw.(2)
Explaination Photo
Explaination
8. Remove Panel Outer.
11
3. Disassembly and Reassembly
3-2 Replacement of High Voltage Transformer and HVC and Base bottom
Parts
Explaination Photo
Explaination
1. Disconnect Oven Power.
2. Remove Panel Outer.
3. Discharge The High Voltage Capacitor.
ATTENTION : W
hen discharge must become ground
terminal of HVC and metal of around.
High
voltage
capacitor
4. Remove screw.(1)
5. Disconnect the Lead Wire.
Base
Bottom
1. Remove
Screw.(5)
2. Disconnect
Lamp
Housing.
3. Remove Base
bottom.
HV Trans
1. Disconnect
Oven Power.
2. Remove the
Base bottom
and Panel
Outer.
3. Disassembly
the Bracket
Duct upper
after remove
screw.
12
3. Disassembly and Reassembly
3-2 Replacement of High Voltage Transformer and HVC and Base bottom
Parts
Explaination Photo
Explaination
4. Disconnect the Lead Wire.
HV Trans
5. Remove screw.(3)
6. Take out the HV Trans.
13
3. Disassembly and Reassembly
3-3 Replacement of Magnetron
Parts
Explaination Photo
Explaination
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.
Magnetron
2. Remove nuts (4) securing the magnetron
to the wave guide.
3. Take out the magnetron very carefully.
NOTE1: When removing the magnetron, make sure that it antenna does not hit any adjacentparts, 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
14
3. Disassembly and Reassembly
3-4 Replacement of Door Assembly
Parts
Removal of
Door Assembly
Disassembly Photo
Explaination
1. Open the Assembly Door by degree 90º
2. Seperate lifting Assembly Door from Set.
90º
Removal of
Door C
2. Insert flat screwdriver into the gap between Door
“A” and Door “C” to remove Door “C”.
• B
ecareful when handling Door “C” because it is
fragile.
Removal of Key
Door & Spring
3. Detach the spring and key door from Door.
15
3. Disassembly and Reassembly
3-4 Replacement of Door Assembly
Removal of
Handle
4. Remove 2 screws, then handle is detached from
Door “A”.
Removal of
Door “E”
5. 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.
• Insertion depth of the thin metal plate should be
0.5mm or less.
PRECAUTION
PERFORM MICROWAVE LEAKAGE TEST
16
3. Disassembly and Reassembly
3-5 Replacement of Fuse
Parts
Explaination Photo
Explaination
The fuse is located on the noise filter.
1. Disconnect power and remove grilleand
Assembly Control Box.
2. Replace the fuse.
3. When 20A fuse blows out by the operation
of interlock monitor switch failure, replace
the primary interlock switch, secondary
interlock switch, door sensing switch,
interlock monitor switch and power relay.
4. When the above four switches operate
properly, check if any other part such as the
control circuit board, blower motor or high
voltage transformer is defective.
Fuse
Fuse
Fuse
3-6 Replacement of Drive Motor
Parts
Explaination Photo
Explaination
1. Disconnect power and remove Base
bottom screws(5).
2. Remove Base bottom and disconnect the
turntable motor drive.
3. Remove turntable motor screws(1) and pull
the turntable motor out.
4. When replacing the drive motor, be sure to
remount it in the correct position with the
coupler.
5. Connect all the leads to the drive motor.
Drive
Motor
17
3. Disassembly and Reassembly
3-7 Replacement of stirrer motor
Parts
Explaination Photo
Explaination
1. Disconnect power and remove Grille
screws(3).
2. Remove the bracket duct upper.
Stirrer Motor
3. Disconnect the stirrer motor wire.
4. Remove stirrer motor screws(1) and after turn
to arrow direction pull the stirrer motor.
18
3. Disassembly and Reassembly
3-8 Removal of stirrer
Parts
Explaination Photo
Explaination
The stirrer is motor driver and located on the
upper side of the cavity. The oven uses a top
feed wave guide.
The stirrer is located in the wave guide and
the motor is located on the wave guide.
1. Disconnect power and open the door.
Stirrer
2. Remove the clip and turn the stirrer cover
left.
3. Remove stirrer cover and the stirrer will
come with it.
19
3. Disassembly and Reassembly
3-9 Replacement of Control Circuit Board
Parts
Explaination Photo
Explaination
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
Assembly
3. Remove a screw securing the control box
assembly.
4. Disconnect the connectors from the control
circuit board.
1. Pull the lever end of the plastic fastener and
remove the Flexible Printed Circuit(FPC) of
membrane panel.
2. Remove screws (3) securing the control circuit
board.
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.
Removal of
P.C.B Assembly
20
3. Disassembly and Reassembly
3-10 Replacement of Cooktop lamp
When replacing the night light, make sure that you are wearing gloves to avoid injury from the heat of the bulb.
Parts
Explaination Photo
Explaination
1. Unplug the oven or turn off the power
at the main power.
2. Remove the bulb cover, and mounting
screws.
3. Replace the bulb with a 40 watt
appliance bulb.
Cooktop Lamp
4. Replace the bulb cover and mounting
screws.
5. Turn the power back on at the main
power supply.
21
3. Disassembly and Reassembly
3-11 Replacement of Oven Light
Parts
Explaination Photo
Explaination
1. Disconnect Oven power.
2. Remove the Grille
Oven Light
3. Remove the bracket Duct upper by
remove 1 screw.
4. Replace the bulb with a 40 watt
appliance bulb.
22
4. Troubleshooting
4-1 Error Code Numbering Rule
1. ERROR CODE NUMBERING RULE is applied to a microwave oven and an oven.(CMO, OTR, Grill, Convection,
Commercial etc.)
2. All sensors and devices have their own number. ex) Gas Sensor = 1, Temp. Sensor = 2, ...
3. Of each device, No.1 and No.2 refer to “Open Error” (not sensed) and “Short Error”, respectively.
4. This numbering rule has been applied to models to have been developed since January, 1, 2005. (But, GE or
Customize model are excluded.)
DEVICE
ERROR CASE
0- Others
1- Open
1- Gas Sensor
2- Short
2- Temp. Sensor
•
3- Weight Sensor
•
4- Easy/PH Sensor
•
5- EEPROM
•
•
•
4-2 Error Code List
Error Code
-SE-
Others (E-0X, Letter)
Key Short Error (10 seconds)
23
Solution
Page
Turn off set and restart.
21 Page
4. Troubleshooting
4-2-1 Key Short Error
“- SE -” is displayed.
YES
Is the key not recognized
at all?
NO
YES
Is the key recognized
intermittently?
NO
Is a specific key
not recognized?
YES
NO
The membrane
is defective.
Replace the
Control Panel.
S/W Error
After Power > On,
does the symptom continue?
NO
YES
Replace the PCB.
Perform the operation again and check if it
is working properly.
24
4. Troubleshooting
PRECAUTION
1.
2.
3.
4.
CHECK GROUNDING BEFORE CHECKING FOR TROUBLE.
BE CAREFUL OF THE HIGH VOLTAGE CIRCUIT.
DISCHARGE THE HIGH VOLTAGE CAPACITOR.
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.
4-3 Electrical Malfunction
Oven is dead. (No display and no operation at all.)
Open or loose lead wire harness
Fuse is OK
Open thermal cutout (Magnetron)
Check fan motor when thermal cutout is defective.
Open low voltage transformer
Check Ass’y PCB when L.V.T is defective.
Defective Ass’y PCB
Shorted lead wire harness
Defective primary latch switch (NOTE
(NOTE 1)
1)
Defective monitor switch (NOTE
(NOTE 1)
1)
Check adjustment of primary, interlock monitor,
power relay, door sensing switch.
Shorted H.V.Capacitor
Shorted H.V.Transformer (NOTE
(NOTE 2)
2)
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 H.V.Transformer is replaced, check diode and magnetron also.
Oven does not accept key input (Program)
Oven does not
accept key input
Key input is not in-Sequence
Refer to operation procedure.
Open or loose connection of
membrane key pad to Ass’y PCB
Shorted or open membrane panel
Timer starts
countdown but
no microwave
Defective Ass’y PCB
Replace PCB main.
Off-alignment of latch switches
25
Adjust door and latch switches.
Open or loose connection of high
Check high voltage component according to
Oven does not
accept key input
Open or loose connection of
membrane key pad to Ass’y PCB
4. Troubleshooting
Shorted or open membrane panel
Defective Ass’y PCB
Replace PCB main.
Timer starts countdown but no microwave oscillation.
(No heat while oven lamp and fan motor turn on.)
Timer starts
countdown but
no microwave
oscillation
Off-alignment of latch switches
Adjust door and latch switches.
Open or loose connection of high
voltage circuit especially magnetron
filament circuit (NOTE)
Check high voltage component according to
component test procedure and replace if it is
defective.
Defective high voltage components
H.V.Transformer H.V. Capacitor
H.V.Diode, H.V.Fuse Magnetron
Open or loose wiring of power relay
Defective primary latch switch
Defective power relay or Ass’y PCB
Replace PCB main.
NOTE: Large contact resistance will bring lower magnetron filament voltage and cause magnetron
to lower output and/or intermittent oscillation.
Oven can program but timer does not start.
Oven can program
but timer does
not start
Oven can program
but timer does
not start
Oven can program
but timer does
Oven not
canstart
program
but timer output
does
Microwave
not start
Microwave
output is low
is low.
Microwave
output is low
Microwave
output is low
Microwave
output is low
Fan motor turns
on when plugged in
Open or loose wiring of secondary
interlock switch
Adjust door and interlock switches.
Open or looseof
wiring
of secondary
Off-alignment
primary
interlock
interlock switch
Adjust door and interlock switches.
Open
or loose
wiring interlock
of secondary
Defective
secondary
S/W
Off-alignment
of primary
interlock
interlock switch
Open or loose wiring of secondary
interlock
Off-alignment
of primary
interlock
Defectiveswitch
secondary
interlock
S/W
Decrease
power source
voltage
(Oven
takesinlonger
time
to cook
Off-alignment of primary interlock
Defective secondary interlock S/W
Open or loose wiring of magnetron
Decrease
in power source voltage
filament
Defectivecircuit.
secondary interlock S/W
(Intermittent oscillation)
Open
or loose
wiring
of magnetron
Decrease
in power
source
voltage
filament
Aging of circuit.
magnetron
(Intermittent
Decrease
in oscillation)
power
source
voltage
Open
or loose
wiring
of magnetron
filament circuit.
Aging or
of loose
magnetron
Open
wiring of magnetron
(Intermittent
oscillation)
filament circuit.
(Intermittent
oscillation)
Aging
magnetron
Loose of
wiring
of door sensing switch
Adjust door and interlock switches.
Fan motor turns on when plugged
in.
Aging of magnetron
Fan motor turns
on when plugged in
Fan motor turns
on when plugged in
Fan
motor
Oven
doesturns
not
on when
plugged
operate
and
return in
to
the plugged
Oven
does not
in mode
operate and return to
Oven
does
not operate
the plugged
Oven
does not
in mode
operate and return to
Oven
does not
the plugged
operateinand
return to
mode
Loud
buzzing
noise
the plugged
can
be
heard
in mode
Loud buzzing noise
can be heard
Loud buzzing noise
can be heard
Loud buzzing noise
can be heard
Turntable motor does
not rotate.
Adjust door and interlock switches.
Consult electrician.
food.)
Consult electrician.
Consult electrician.
Consult electrician.
Consult electrician.
Loose wiring of door sensing switch
Consult electrician.
Loose wiring of door sensing switch
Consult electrician.
Loose wiring of door sensing switch
Defective Ass’y PCB
Consult electrician.
Replace PCB main.
Defective
and return
to Ass’y
the PCB
plugged in mode. Replace PCB main.
Defective Ass’y PCB
Loose fan and fan motor
Defective Ass’y PCB
Replace PCB main.
Tighten screws of fan motor.
Replace PCB main.
Loose
Loose screws
fan and on
fanH.V.Transformer
motor
Tighten screws
screws of
of fan
H.V.Transformer.
Tighten
motor.
Shorted
H.V.Diode
Loose
screws
fan
and on
fanH.V.Transformer
motor
Replace
H.V.Diode.
Tighten screws
of fan
motor.
H.V.Transformer.
Loose fan and fan motor
Loose
screws
on H.V.Transformer
Shorted
H.V.Diode
Tighten screws of fan motor.
Tighten
of H.V.Transformer.
Replacescrews
H.V.Diode.
Loose
screws
H.V.Transformer
Open or
loose on
wiring
of
Shorted H.V.Diode
turntable motor.
26
Tighten
of H.V.Transformer.
Replacescrews
turntable
motor.
Replace H.V.Diode.
Shorted
Open or H.V.Diode
loose
wiring
of
Defective
turntable
motor
Replace H.V.Diode.
Replace turntable motor.
Loose wiring of door sensing switch
(Intermittent
oscillation)
on when plugged in
Aging of magnetron
Fan motor turns
Loose wiring of door sensing switch
on when plugged in
Aging of magnetron
Fan motor turns
Loose wiring of door sensing switch
on when plugged in
Oven does not
Fan motor
turns to
operate
and return
Loose
wiring
of door
Defective
Ass’y
PCB sensing switch
onOven
when
plugged
does
not in
the plugged
Fan
motor
turns
operateinand
return to
mode
Loose
wiring
of door
Defective
Ass’y
PCB sensing switch
onOven
when
plugged
does
not in
the plugged
Loud
buzzing
noise
operate
return
to can be heard.
inand
mode
Defective Ass’y PCB
Oven
does not
the plugged
operateinand
return to
mode
Defective Ass’y PCB
the plugged
Loose fan and fan motor
Oven
does not
inand
mode
Loud buzzing
noise
operate
return
to
Defective
PCB
Loose fan Ass’y
and fan
motor
can
be
heard
Oven
does
not
the plugged
Loose screws on H.V.Transformer
Loud buzzing
noise
operate
return
to
inand
mode
Defective
Ass’y
PCB
Loose fan and fan motor
can
be heard
the plugged
Loose screws on H.V.Transformer
Loud buzzing
Shorted H.V.Diode
in mode noise
Loose fan and fan motor
can be heard
Loose screws on H.V.Transformer
Loud buzzing noise
Shorted H.V.Diode
can be heard
Loose screws
fan and on
fanH.V.Transformer
motor
Shorted H.V.Diode
Turntable
motor
does not rotate.
Loud buzzing
noise
Open or
loose
of
Loose
fan
and wiring
fan motor
can be heard
Loose
screws
on H.V.Transformer
Shorted
H.V.Diode
turntable
motor.
Loud
buzzing
noise
Turntable motor does
Open or loose wiring of
can
heard
notbe
rotate.
Loose
screws
on H.V.Transformer
turntable
motor.
Defective
turntable motor
Shorted H.V.Diode
Turntable motor does
Open or loose wiring of
not rotate.
turntable
motor.
Defective
turntable motor
Shorted H.V.Diode
Turntable motor does
Open or loose wiring of
not rotate.
turntable
motor.
Defective turntable motor
Turntable motor does
Open
wiring
of
not rotate.
Open or
or loose
loose
wiring
of primary
Defective
turntable
motor
turntable
motor.
interlock
switch
Turntable
motor
does
Oven
stops
operation
during
cooking.
Oven stops operation
Open
or
loose
wiring
Open or loose wiring of
of primary
not rotate.
during
cooking
turntable
motor.
Defective
turntable
motor
Turntable
motor
does
interlock switch
Operation
of thermal
cutout (Magnetron)
Oven
stops
operation
Open or loose wiring of primary
not rotate.
during
cooking
Defective
turntable
motor
interlock switch
Operation
of thermal
cutout (Magnetron)
Oven stops operation
Open or loose wiring of primary
during cooking
interlock switch
Operation
of thermal cutout (Magnetron)
Oven stops operation
Open or loose wiring of primary
during cooking
Metallic ware
or cooking
dishes
Operation
of thermal
cutout
(Magnetron)
interlock switch
Oven stops operation
touching
on thewiring
oven of
wall
Open
or
loose
primary
Sparks
Metallic ware or cooking dishes
during
cooking
interlock switch
Operation
ofthe
thermal
(Magnetron)
Sparks.
Oven stops operation
touching ware
on
oven cutout
wall
Ceramic
trimmed
with gold
or
Sparks
Metallic
ware or
cooking
during
cooking
silver
powder
also
causesdishes
sparks
4. Troubleshooting
Sparks
Sparks
Uneven
cooking
Sparks
Uneven
cooking
Sparks
Uneven
cooking
Uneven
cooking.
Uneven cooking
Uneven cooking
Uneven cooking
Noise from the
turntable motor when
Noiseto
from
the
it starts
operate.
turntable motor when
Noiseto
from
the
it starts
operate.
turntable motor when
Noiseto
from
the
it starts
operate.
turntable
motor
Noise
from
thewhen
turntable
it starts
operate.
Noiseto
from
the
turntable motor when
Noiseto
from
the
it starts
operate.
turntable motor when
it starts to operate.
Operation
ofthe
thermal
(Magnetron)
touching ware
on
oven cutout
wall
Ceramic
trimmed
with gold
or
Metallic
ware or
cooking
silver
powder
also
causesdishes
sparks
touching ware
on thetrimmed
oven wall
Ceramic
with gold or
silver
powder
also
causesdishes
sparks
Metallic
ware or
cooking
Ceramic
ware trimmed
with golddue
or
Uneven intensity
of microwave
touching
on the oven
wall
silver
powder
also
causesdishes
sparks
Metallic
ware or
cooking
to its characteristics
Uneven intensity
of microwave
touching
on thetrimmed
oven
wall
Ceramic
ware
with golddue
or
to its characteristics
silver
powder also causes sparks
Uneven intensity
of microwave
Ceramic
ware trimmed
with golddue
or
to its characteristics
silver
powder also causes sparks
Uneven intensity of microwave due
to its characteristics
Uneven intensity of microwave due
to its characteristics
Uneven intensity of microwave due
to its characteristics
Noise may result from the motor
Noise may result from the motor
Noise may result from the motor
Consult electrician.
Consult electrician.
Consult electrician.
Consult
Replaceelectrician.
PCB main.
Consult
Replaceelectrician.
PCB main.
Replace PCB main.
Replace PCB main.
Tighten screws of fan motor.
Replace
PCB main.
Tighten screws
of fan motor.
Tighten screws of H.V.Transformer.
Replace
PCB
main.
Tighten screws of fan motor.
Tighten screws of H.V.Transformer.
Replace H.V.Diode.
Tighten screws of fan motor.
Tighten screws of H.V.Transformer.
Replace H.V.Diode.
Tighten
motor.
Tighten screws
screws of
of fan
H.V.Transformer.
Replace H.V.Diode.
Tighten
of fan
motor.
Replacescrews
turntable
motor.
Tighten
of H.V.Transformer.
Replacescrews
H.V.Diode.
Replace turntable motor.
Tighten screws of H.V.Transformer.
Replace H.V.Diode.
Replace turntable motor.
Replace H.V.Diode.
Replace turntable motor.
Replace
turntable
motor.
Adjust door
and latch
switches.
Replace
turntable
motor.
Adjust door
and latch
switches.
Adjust door and latch switches.
Adjust door and latch switches.
Adjust door and latch switches.
Inform the customer: Do not use any type of
cookware
with
trimming
Adjust door
andmetallic
latch switches.
Inform the customer: Do not use any type of
cookware with metallic trimming
Inform the customer: Do not use any type of
cookware with metallic trimming
Inform the customer: Do not use any type of
cookware with metallic trimming
Inform the customer: Do not use any type of
Wrap thinner
of the
food with aluminum foil.
cookware
withparts
metallic
trimming
Inform the customer: Do not use any type of
Wrap thinner
of the
food with aluminum foil.
cookware
withparts
metallic
trimming
se plastic wrap or cover with a lid.
Wrap thinner parts of the food with aluminum foil.
se plastic wrap or cover with a lid.
Stir once or twice while cooking foods such as
Wrap thinner parts of the food with aluminum foil.
soup,
cocoa,
or or
milk.
se
plastic
wrap
cover with a lid.
Stir once or twice while cooking foods such as
Wrap
thinner
parts
of thewith
fooda with
soup,
cocoa,
or
milk.
se
plastic
wrap
or
cover
lid. aluminum foil.
Stir once or twice while cooking foods such as
Wrap
parts
of the food with aluminum foil.
soup, thinner
cocoa, or
milk.
se
wrap
or while
covercooking
with a lid.
Stirplastic
once or
twice
foods such as
soup,
cocoa,
or milk.
Replace
turntable
motor.
se plastic wrap or cover with a lid.
Stir once or twice while cooking foods such as
Replace turntable motor.
soup, cocoa, or milk.
Stir once or twice while cooking foods such as
Replace turntable motor.
soup, cocoa, or milk.
may it
result
from the
motorNoise
when
starts
to motor
operate.
Replace turntable motor.
Noise may result from the motor
Replace turntable motor.
Noise may result from the motor
Replace turntable motor.
27
5. Exploded Views and Parts List
5-1 Exploded Views
P007
P012
T017
P013
P090
T001
M060
W022
P088
P087
P089
P091
P014
P032
M015
M219
C089
P034
P039
P178
P179
P113
P098
H032
P122
P030
M036
P112
W023
U008
P001
U003
P097
M024
M001
M050
P016
M040
P015
T036
T037
M061
M039
W002
M087
M167
T030
P226
P100
U007
P102
P059
M035
P121
D060
U012
P123
B002
B001
U001
M048
28
B018
B001
P122
P101
M029
B006
M038
P117
P099
M067
M023
M049
U005
P104
H018
M059
U003
M068
D060
M017
M034
M036
U004
M206
P109
M059
C081
M041
M155
B013
M021
5. Exploded Views and Parts List
5-2 Main Parts List
(S.N.A : SERVICE NOT AVAILABLE)
Level
No.
Code No.
1-1
M036
4713-001013
1-1
M038
1-1
M024
1-1
1-1
Description
Specification
Q’ty
SA/
SNA
Remark
LAMP-INCANDESCENT
130V,-,40W,ORG,E17/20,
1
SA
-
DE26-00126A
TRANS H.V
SHV-U1870C,120V,60HZ,2480/2240
1
SA
-
DE31-00029B
MOTOR VENTILATION
SMV-460UA-1,SMH7175WE/
1
SA
-
M049
DE31-10172A
MOTOR-SYNCHRONOUS
M2HJ24Z709,ST-16F,21V,
1
SA
TURNTABLE
M050
DE31-10173A
MOTOR-SYNCHRONOUS
M2HJ29A709,ST-16F,21V,
1
SA
STIRRER
1-1
M029
DE47-20007A
THERMOSTAT
PW-2N(160/60)187Z,250V7.5A,16
1
SA
MGT
1-1
M059
DE61-00375A
HOLDER-RACK
OTR-1.5CUFT,PP,-,-,-,-,-
1
SA
-
1-1
P121
DE61-00411B
BRACKET-DUCT REAR
NEW WAVE / MT 2.0,SECC
1
SA
-
1-1
U008
DE63-00196A
FILTER-AIR
SMH7175,AL-MESH,T2.0,W150,L34
1
SA
-
1-1
M167
DE63-00359A
EARTH-CLIP
SMH7175,STS301,T0.15,W13.5,L3
1
SA
-
1-1
M061
DE63-00367D
FILTER-CHARCOAL
MODULAR-2,AL,CARBON,T9,W
1
SA
-
1-1
P059
DE63-00419A
COVER-FRONT
MAYTAG2.0,SECC,T0.6,-,-,-,MA
1
SA
-
1-1
M001
DE64-00754J
PANEL-OUTER
MAYTAG2.0,SECC,T0.4,-,-,-,BL
1
SA
-
1-1
C081
DE66-20095B
BUTTON-LOCK
-,-,OTR5,-,-,TB53)
1
SA
-
1-1
M034
DE67-00179A
COUPLER
SMH7175,SPS,BRN,-,-,-
1
SA
-
1-1
P007
DE70-00378A
PLATE-MOUNTING
SMH7175,SECC ,-,T0.8,W130
1
SA
-
1-1
M087
DE71-60121A
COVER-STIRRER
-,PP,T2.0,W7,L198,-,85G,-
1
SA
-
1-1
T001
DE74-20002C
TRAY-COOKING
GLASS,T6,1500G
1
SA
-
1-1
T030
DE75-00036A
RACK-WIRE
SMH7175,SNC2,D5,-,-,-,-,-
1
SA
-
1-1
P012
DE92-90242D
ASSY-HOOD DAMPER
JVM-1870,JVM250BL OTR4,
1
SA
-
1-2
P013
DE71-60051B
COVER-DAMPER
JVM-1870,-,0.22,68,248.4,-,
1
SA
-
1-2
P014
DE72-40022A
DAMPER-MAIN
-,SECC,-,W28,L650,OTR4,-,T0.
1
SA
-
1-1
M060
DE92-90505E
ASSY-HARD WARE
SMH7175,-,-,-
1
SA
-
1-2
P087
DE60-10111A
SCREW-LAG
-,-,-,-,MSWR,W1/4X50,-,-,-,-
1
SA
-
1-2
P088
DE60-20022A
BOLT-TOGGLE
MSWR,W3/16X75,-,-,-,-,-,-,-
1
SA
-
1-2
P089
DE60-20066A
BOLT-FLAT
UNF1/4,L110,MSWR10,-,-,OTR6,-,
1
SA
-
1-2
P090
DE60-30022A
NUT-TOGGLE
SBC1,ZPC2,WHT,-,-,-,-,-,-
1
SA
-
1-2
P091
DE63-10011A
GROMMET
-,MS,-,-,-,DACB-16,-,-,-
1
SNA
-
1-1
P032
DE92-90508A
ASSY-HOLDER NUT
OTR6,-,-,-,-,-
1
SA
-
1-1
M067
DE94-01618A
ASSY-GRILLE
120V/60HZ,SMH7187STG,STS,AUT
1
SA
-
1-2
D060
6107-001175
SPRING-ES
HSWR,BLUING,PI0.95,D8.5,L48.4
1
SNA
-
1-2
P099
DE61-00128A
HINGE-GRILLE(R)
JVM-1860,SECC,T0.8,-,-,-
1
SA
-
1-2
P100
DE61-00129A
HINGE-GRILLE(L)
JVM-1860,SECC,T0.8,-,-,-
1
SA
-
1-2
P104
DE61-00177A
HINGE-GRILLE(M)
JVM-3660,SECC,T1.6,-,-,-
1
SA
-
1-2
M068
DE64-01455A
GRILLE
MT2.0,PC,-,-,-,-,BLK,JENNAIR
1
SA
-
1-2
P101
DE94-01622A
ASSY-COVER GRILLE
120V/60HZ,SMH7187STG,S
1
SA
-
1-3
P102
DE61-00150A
BRACKET-BARRIER GR
JVM-1860,SECC,T0.5,-,
1
SA
-
1-3
P117
DE61-00811A
BRACKET-COVER GRILLE
MT 2.0,SECC,T1.2,-,
1
SA
-
1-3
P226
DE64-01773A
INLAY-GRILLE
NEW WAVE 2,STS430,T0.4,-,-,
1
SA
-
1-1
M015
DE96-00218A
ASSY-POWER CORD
OTR9,120V60HZ,GE,SJT3/14
1
SA
-
1-1
M206
DE96-00269A
ASSY-HVC
SMH7175,0.91UF HVC
1
SA
-
1-2
M039
2501-001011
C-OIL
910nF,2100V,BK,54x35x75mm,20mm
1
SA
-
1-2
M040
DE61-00115A
BRACKET-HVC
SMH7175,SECC,T0.6,-,-,-,-
1
SA
-
29
5. Exploded Views and Parts List
5-2 Main Parts List
(S.N.A : SERVICE NOT AVAILABLE)
Level
No.
Code No.
Description
1-2
M041
DE91-70063D
ASSY-HVD
1-3
M041
0402-001554
1-1
B018
DE96-00414A
1-2
B002
1-2
1-2
Specification
Q’ty
SA/
SNA
HV03-12,MWO-GE,RED
1
SA
-
HVDIODE-RECTIFIER
HV03-12T01,12000V,0.4A
1
SA
-
ASSY BODY LATCH
RVM-1625BJ,-
1
SA
-
3405-001033
SWITCH-MICRO
125/250VAC 16A,200GF,SPSTNC
1
SA
-
B001
3405-001034
SWITCH-MICRO
125/250VAC,16A,200GF,SPST-N
1
SA
-
B006
DE66-00168A
LATCH-BODY
MODULAR-2,PP,-,-,-,-,-
1
SA
-
1-2
B013
DE66-90106B
LEVER-SWITCH LOWER
PP,T1.4,-,-,2.0g,OTR
1
SA
-
1-1
W002
DE96-00490A
ASSY-WIRE HARNESS A
SMH7178STE/XAA,120V/
1
SA
-
1-1
M021
DE97-00365C
ASSY-COVER MOTOR
SMH7175/SMH7178,ASSY-NO
1
SA
-
1-2
M023
DE31-10177E
MOTOR FAN
SMF-1850UA1,SMH7175WC,-,60HZ,-
1
SA
-
1-2
H018
DE31-90051A
BLADE-FAN
P.P,T,D130,-,-,-,-
1
SA
-
1-2
P109
DE63-00141A
COVER-MOTOR
SMH7175,PP(FB53),T2.5,-,-,-,
1
SA
-
1-2
M017
DE96-00400B
ASSY NOISE FILTER
SN-UF12B,250V20A,OTR10
1
SA
-
1-1
P034
DE97-00366D
ASSY-DUCT UPPER
SMH7178,HUMIDITY SENSOR,
1
SA
-
1-2
W022
DE39-30099A
LEAD WIRE-F
L140,JVM-1340BW,-,-,-,-,-
1
SNA
-
1-2
P122
DE47-20059A
THERMOSTAT
PW-2N(8XV),125V15A,V,120/0,23
1
SA
-
1-2
P030
DE59-50002A
CAPACITOR-MOTOR
SH-M 10UF,220V10UF,-,DMB
1
SA
-
1-2
P098
DE97-00181A
ASSY-CAM LOUVER
JVM-1860,ASSEMBLY,-,-
1
SA
-
1-3
P178
3405-001050
SWITCH-MICRO
125V,0.1A,60GF,SPNC
1
SA
-
1-3
P179
3405-001051
SWITCH-MICRO
125V,0.1A,60GF,SPNO
1
SA
-
1-3
W023
DE39-00253A
WIRE HARNESS-CAM
JVM-1860,-,-,-,-,-,-,-,
1
SA
-
1-3
P112
DE61-00118A
BRACKET-CAM PLATE
JVM-1860,SCP,T2.0,W60.
1
SA
-
1-3
P113
DE72-00145A
CAM-LOUVER
JVM-1860,POM(KEPITAL FE-22),-
1
SA
-
1-3
H032
DE31-10154C
MOTOR DRIVE
M2CK59ZT69-H,-,-,120V60HZ,-,
1
SA
ASSY CAM
LOUVER
1-2
P097
DE97-00371B
ASSY-DUCT UPPER(SUB)
JMV8186,HUMIDITY-SE
1
SA
-
1-3
U003
DE47-00006A
HOLDER-LAMP
250V,75W,250X187 2POLE,OTR
1
SA
-
1-3
P039
DE67-00168A
DUCT-UPPER
SMH7175,PP,T2.0,BLK,-,-,-
1
SA
-
1-3
M219
DE97-00585A
ASSY-SENSOR HUMIDITY
SMH7175WE/XAA,-,HUM
1
SA
-
1-3
C089
DE39-40673F
WIRE HARNESS-H
SMH7175WE/XAA,-,-,-,-,-,-
1
SA
-
1-1
P001
DE97-00367A
ASSY-STIRRER
SMH7175,H/STIRRER+B/STIRRER
1
SA
-
1-2
T036
DE31-00023A
BLADE-STIRRER
SMH7175,ALP1050,-,-,PI82,T
1
SA
-
1-2
T037
DE61-00505A
HOLDER-STIRRER
SMH7175,SPS,-,-,-,-,-
1
SA
-
1-1
T017
DE97-00368A
ASSY-GUIDE ROLLER
SMH7175,SPS,G/ROLLER+R
1
SA
-
1-1
P015
DE97-00411A
ASSY-BKT DUCT UPPER
SMH7175BC,BKT-DUCT U
1
SA
-
1-2
P016
DE61-00410A
BRACKET-DUCT UPPER
SMH7175,SECC,T0.5,W20
1
SA
-
1-1
U001
DE97-00675A
ASSY-BASE BOTTOM
SMH7174BE,BLK,-,-
1
SA
-
1-2
M036
4713-001013
LAMP-INCANDESCENT
130V,-,40W,ORG,E17/20,
1
SA
-
1-2
U003
DE47-00006A
HOLDER-LAMP
250V,75W,250X187 2POLE,OTR
1
SA
-
1-2
U007
DE61-00406F
BASE-BOTTOM
MAYTAG2.0,SECC,T0.4,-,-,BLK,
1
SA
-
1-2
U004
DE61-00407A
BRACKET-BOTTOM LAMP
SMH7175,SECC,T0.4,-,
1
SA
-
1-2
U012
DE63-00137B
COVER-GLASS COOKTOP
SMH7175,SECC,T0.5,W9
1
SA
-
1-3
U012
DE63-00137A
COVER-GLASS COOKTOP
SMH7175,SECC,T0.5,PR
1
SA
-
30
Remark
5. Exploded Views and Parts List
5-3 Door Parts List
D016
D004
D005
D006
D024
D037
D002
Z779
D011
D060
D020
D073
D127
D049
D085
(S.N.A : SERVICE NOT AVAILABLE)
Level
No.
Code No.
Description
Specification
1-1
D049
DE94-01612C
ASSY DOOR
SMH7185STG/XAA,STS,NEW
WAVE 2
C003
1
SA
-
1-2
D060
6107-001175
SPRING-ES
HSWR,BLUING,PI0.95,D8.5,L48.4
1
SNA
-
1-2
D005
DE01-00127A
FILM-DOOR
JVM-1860,POLYESTER,-,L479,T0.0
1
SA
-
1-2
D006
DE64-00759A
DOOR-C
1
SA
-
1-2
D011
DE64-00760A
KEY-DOOR
1
SA
-
1-2
D004
DE94-01470B
ASSY DOOR-E
1
SA
-
1-2
D020
DE94-01625C
ASSY-HANDLE
1
SA
-
1-3
D073
DE63-00445A
EARTH-DOOR
C082
1
SA
-
1-3
D127
DE64-01802A
HANDLE-TUBULAR
SA
-
1-3
D085
DE67-00222C
CAP-HANDLE
C074
NEW WAVE 2,PC,-,-,-,STS SPRAY
1
1
SA
-
1-2
D037
DE94-01626A
ASSY DOOR-A
SMH7185STG/XAA,STS,NEW
WAVE
C073
1
SA
-
1-3
D016
DE64-01769A
DOOR-SUB
NEW WAVE 2,PC,-,-,-,-,BLACK,-
1
SA
-
1-3
Z779
DE64-01770A
INLAY-DOOR
NEW WAVE 2,STS430,T0.3,-,-,ST
SNA
-
1-3
D024
DE64-01801A
SCREEN-DOOR(B)
C001
SMH7185,REINFORCED
GLASS,
1
1
SA
-
1-3
D002
DE64-01768D
DOOR-A
NEW WAVE 2,PC,-,-,-,-,BLACK,ST
1
SNA
-
C005
SMH7175,PP,T1.5,-,-,-,BLK,-
Z783
C009
SMH7175,PBT,-,-,BLK,-,C004 SMH7175,-,COATING
120V/60HZ,NEW WAVE 2,STS,AL
NEW WAVE 2,STS430,T0.15,-,-,- C089
M011
SMH7187STG,AL,-,-,-,-,-,-
31
Q’ty
SA/SNA
Remark
D049
D127
D085
5. Exploded Views and Parts List
5-4 Control Parts List
C003
C009
C004
C005
Z783
C089
C082
M011
C074
C073
C001
(S.N.A : SERVICE NOT AVAILABLE)
Level
No.
Code No.
Description
1-1
C082
DE94-01613D
ASSY-CONTROL BOX
1-2
C001
DE94-01614C
1-3
C004
DE34-00205F
1-3
C009
1-3
1-3
Specification
Q’ty
SA/SNA
-,SMH7187STG/XAA,STS,12
1
SA
-
ASSY-CONTROL PANEL
-,SMH7185STG/XAA,STS,
1
SA
-
SWITCH MEMBRANE
SMH7187STG/XAA,-,-,-,-,1
1
SNA
-
DE64-00766D
WINDOW-DISPLAY
SMH7185,SAN(CR-5381),-,W3
1
SA
-
C005
DE64-01766A
CONTROL-PANEL
NEW WAVE 2,PC,-,-,-,-,BLAC
1
SNA
-
Z783
DE64-01771A
INLAY-CONTROL
NEW WAVE 2,STS430,T0.3,-,-
1
SNA
-
1-2
C073
DE94-01619A
ASSY-BRACKET C/PANEL
120V/60HZ,NEW WAVE
1
SA
-
1-3
M011
DE61-00162A
BRACKET-EARTH
JVM-1860,SECC,T0.6,W39,L61
1
SA
-
1-3
C074
DE61-00940A
BRACKET-C/PANEL
NEW WAVE 2,SECC,T0.4,-,-
1
SA
-
1-2
C003
RAS-OTR7HV-04
ASSY PCB PARTS
SMH7178,120V/60HZ
1
SA
-
32
Remark
5. Exploded Views and Parts List
5-5 Standard Parts List
(S.N.A : SERVICE NOT AVAILABLE)
Level
Code No.
Description
1-1
6002-000643
SCREW-TAPPING
1-1
6002-001173
1-1
6003-001568
1-1
1-1
Specification
Q’ty
SA/
SNA
TH,+,2S,M4,L10,ZPC(YEL),SW
1
SA
CVT FRONT+B.PLATE
SCREW-TAPPING
FH,+,2S,M4,L12,ZPC(BLK),MS
2
SA
O/PANEL,GRILLE
SCREW-TAPTITE
FH,TORX,-,B-TITE,M4,L14,NI
1
SA
BODY LATCH
6006-001170
SCREW-ASSY TAPP
WS,TH,+,M4,L10,ZPC(YEL)
3
SA
P.CORD,N.FILTER E.& BKT.HVC,H.SENSOR EAR
DE60-10045A
SCREW-TAP PH
-,-,FEFZY,-,PH,M3,-,L6,-,-
1
SA
MGT-TCO
1-1
DE60-10051A
SCREW-TAP PH
-,-,MSWR,-,PH,M4,-,L6,-,-
2
SA
STIRRER MOTOR,TURNTABLE MOTOR
1-1
DE60-10062A
SCREW-TAP TH
-,-,FEFZB,-,TH,M4,-,L12,-,-
2
SNA
1-1
DE60-10067A
SCREW-TAP TH
-,-,FEFZB,2-SLOT,TH,M4,-,L8
2
SA
BASE BOTTOM,PANEL OUTER
1-1
DE60-10080A
SCREW-WASHER
-,-,-,-,M5,L12,-,2S,-,-
1
SA
HVT
1-1
DE60-10082I
SCREW-A
-,-,-,-,2S-4X10,FEFZY,-,-,-,-
8
SA
FAN MOTOR,EARTH CLIP,DUCT UPPER,BKT
DUCT
1-1
DE60-30015A
NUT-FLANGE
M5,P0.8,MSWR10,FEFZY,-,-,-,-,
1
SA
MGT
1-2
DE60-10111A
SCREW-LAG
-,-,-,-,MSWR,W1/4X50,-,-,-,-
1
SA
-
1-2
DE60-20022A
BOLT-TOGGLE
MSWR,W3/16X75,-,-,-,-,-,-,-
1
SA
-
1-2
DE60-20066A
BOLT-FLAT
UNF1/4,L110,MSWR10,-,-,OTR6,-,
1
SA
-
1-2
DE60-30022A
NUT-TOGGLE
SBC1,ZPC2,WHT,-,-,-,-,-,-
1
SA
-
1-1
DE92-90508A
ASSY-HOLDER NUT
OTR6,-,-,-,-,-
1
SA
-
1-2
6002-000234
SCREW-TAPPING
TH,+,2S,M4,L16,ZPC(YEL),SM
1
SA
HANDLE+DOOR-E
1-3
DE60-10067A
SCREW-TAP TH
-,-,FEFZB,2-SLOT,TH,M4,-,L8
1
SA
-
1-2
6002-000630
SCREW-TAPPING
PH,+,2S,M3,L8,ZPC(YEL),SWR
1
SA
PCB
1-2
6002-000234
SCREW-TAPPING
TH,+,2S,M4,L16,ZPC(YEL),SM
1
SA
-
1-2
DE60-10082I
SCREW-A
-,-,-,-,2S-4X10,FEFZY,-,-,-,-
1
SA
ASSY DIODE
1-2
6002-001004
SCREW-TAPPING
TH,+,2,M4,L30,ZPC(YEL),SWR
1
SA
-
1-2
DE60-10082I
SCREW-A
-,-,-,-,2S-4X10,FEFZY,-,-,-,-
1
SA
N/FILTER SCREW
1-2
DE60-10062A
SCREW-TAP TH
-,-,FEFZB,-,TH,M4,-,L12,-,-
1
SNA
1-3
6002-001169
SCREW-TAPPING
PH,+,2S,M3,L25,ZPC(YEL),MS
1
SA
MICRO-S/W
1-3
DE60-10051A
SCREW-TAP PH
-,-,MSWR,-,PH,M4,-,L6,-,-
1
SA
MOTOR-DRIV
1-3
DE60-30063A
NUT-MOUNTING
-,M6.3,S10C,ZNC,YEL,-,-,-,-
1
SA
-
1-3
6002-000630
SCREW-TAPPING
PH,+,2S,M3,L8,ZPC(YEL),SWR
1
SA
HUMIDITY SENSOR
1-2
DE60-10067A
SCREW-TAP TH
-,-,FEFZB,2-SLOT,TH,M4,-,L8
1
SA
-
1-2
DE60-10045A
SCREW-TAP PH
-,-,FEFZY,-,PH,M3,-,L6,-,-
1
SA
BT-TCO
33
Remark
BRACKET D/UPPER,CONTROL BOX
-
6. PCB Diagrams
6-1 PCB Diagrams
(This Document can not be used without Samsung’s authorization)
⑤
④
12
11
10
9
8
7
6
5
4
3
2
1
No.
RY208
RY207
RY206
RY205
RY204
RY203
RY202
RY201
CN601
CN402
CN401
CN301
CN202
CN01
Parts
Number
Turn-Table Relay
Louver Relay
Bright Relay
Night Relay
Power-Low Relay
Power-High Relay
Inrush Relay
Main Relay
A Terminal for connecting with Connector
A Terminal for connecting with Louver
A Terminal for connecting with Door
A Terminal for connecting with Gas-Sensor
A Terminal for connecting with T/T and Vent
A Terminal for connecting with SMPS Power Supply
Part Name
Vent Control Relay (Vent high)
T/T Control Relay.
Louver Control Relay
Lamp Control Relay
Lamp Control Relay
MWO Control Relay (Power Low)
MWO Control Relay (Power High)
Inrush Electric Current Decrease Device
Power Supply Relay
A Terminal for Connecting with Connector and SMPS Power Supply
A Terminal for Connecting Louver and SMPS Power supply
A Terminal for Connecting Door and SMPS Power supply
A Terminal for Detecting Gas-Sensor and SMPS Power supply
A Terminal for Connecting with T/T, Vent and SMPS Power supply
A Terminal for Connecting with Inrush Relay, Lamp, Louver and SMPS Power Supply
Function and Rule
③
⑭ ⑦ ⑬ ⑫ ⑪ ⑧
13
Vent-High Relay
Vent Control Relay (Vent Low)
⑮
14
RY209
Vent-Low Relay
Vent Motor Control
①
15
RY210
Vent-Boost Relay
②
16
RY211
⑥
17
⑩
⑨
34
7. Wiring Diagrams
7-1 Wiring Diagrams
(This Document can not be used without Samsung’s authorization)
35
7. Wiring Diagrams
7-1 Wiring Diagrams
(This Document can not be used without Samsung’s authorization)
36
8. Schematic Diagrams
8-1 Schematic Diagrams
(This Document can not be used without Samsung’s authorization)
PTC101
390M
ZNR101
10D471
+12V +5V
R106
51K
D101
1N4007
1N4007
4
3
C402
100nF
PC102
PC817
R401
10K
2K
R109
R108
20K
+5V
INTERRUPT
1N4007
1N4007
D102
D103
2
1
D104
R405
2K
R107
51K
R404
470
+5V
C102
22uF
R402
2K
C103
1nF
C104
1nF
POWER-L
T-TABLE
BRIGHT
NIGHT
VT-H
LOUVER
VT-B
VT-L
1
ST101
ST-SM3GV
10
6
8
9
7
2
3
11
C105
100nF
4
3
D106
UF4007
D107
UF4007
D108
UF4007
D109
SB140
PC101
PC817
1
2
C202
10uF
BZ
D212
1N4148M
D213
1N4148M
F1
L102
3.9uH
F2
C107
470uF
P-R-L
+5V
C108
220uF
ZD101
UZ5.1BSB
R111
2K
C114
10uF
TR212
KRC246M
DGND
+5V
-24V
TR211
KRC246M
P-R-H
I-R
M-R
TR210
KRC246M
D214
1N4148M
C201
100nF
TR209
KRC246M
IC103
7033P
DGND
+5V
R110
4.7K
RESET
4
C111
10uF
3
INT
C113
1nF
TT-R
RESET
BZ
BZ-L
BZ-N
BZ-S
TCO
DOOR
P-R-L
P-R-H
I-R
CN-R
CB-R
M-R
LV-R
VL-R
VH-R
VB-R
Ladder-1
+5V
R303
200K
R301
26.1K
Vm
Ladder-2
CN402
SMW250-03V_WHT
2
3
1
+5V
LOUVER CIRCUIT
VB-R
1
VL-R
LV-R
2
+5V
5 VDD
30 VAREF
64 VDD-1
1 VSS
4 TEST
23 AVSS
XOUT
XIN
20 INT0
8 RESET
2
3
2K
R306
100K
LV-IN2
LV-IN1
11 PDO4
28
29
32
12
13
14
15
16
17
18
19
21
22
26
2K
27
7
9
10
24
R408
VEE
IC301
KIA75S358
VCC
+12V
R409
R407
470
+5V
XTL101
8MHz
C112
100nF
R406
470
+5V
+5V
R302
19.1K
R304
100K
R305
2K
IC101
TMP86CM72FG-CHUN
+12V
C106
470uF
C109
47uF
C110
470uF
R104
330
R105
1K
BZ-S
BZ-N
BZ-L
ZD102
MTZJ4.3B
TR501
KRC246M
TR208
KRC246M
POWER
TR504
KRC246M
TR203
KRC246M
R501
2K
TR207
KRC246M
R201
100
TR204
KRA226-AT
+5V
TR202
KRC246M
TR503
KRC246M
R503
470
BUZZER
R103
1K
TR206
KRC246M
TR205
KRC246M
D211
1T4
TR201
KRC246M
TR502
KRC246M
R502
2K
+12V
4
MAIN
INRUSH
POWER-H
7
8
1
2
POWER SUPPLY
R101
100K
R102
100
B
S8
E
S5
S7
IC102
TNY276P
S6
D
D105
1N4007
4
5
6
INRUSH
POWER-H
POWER-L
DOOR
R403
2K
D203
MM4148
D202
1N4148M
D201
1N4148M
TR401
KRC246M
+12V
D204
MM4148
NIGHT
BRIGHT
LOUVER
T-TABLE
MAIN
VT-H
BZ501
CBE2220BA
L101
1mH
C101
22uF
INT
C401
100nF
RY204
DU12D1-1P
RY203
DU12D1-1P
RY202
G5T-1A-12VDC
RY205
G5T-1A-12VDC
RY206
G5T-1A-12VDC
D205
MM4148
D206
MM4148
D207
MM4148
D208
MM4148
D209
MM4148
D215
MM4148
VT-L
VH-R
GAS SENSOR CIRCUIT
CN301
SMW250-04V_RED
CN-R
CB-R
TT-R
VKK 31
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
-24V
F1
F2
VFD-S2
VFD-S5
VFD-S4
VFD-S3
VFD-S2
VFD-S1
10 P12
9 P11
8 P9
7 P2
6 P8
5 P7
4 P6
NP-1 20
NP-2 21
NP-3 22
18 P10
17 P5
2
1N4148M
D609
NP-4 23
VFD-S3
VFD-S6
11 P1
32 33
F21 F22
VFD-S5
VFD-S7
12 P16
1
2
F11 F12
VFD-S6
VFD-S8
13 P13
VFD-S1
VFD-S7
VFD-S9
14 P4
VFD-S14
19 P14
VFD-S13
24 1G
VFD-S15
VFD-S16
25 2G
VFD-S15
VFD-G1
VFD-S16
26 3G
1N4148M
D608
VFD-G2
1N4148M
D607
3
27 4G
10
11
12
13
14
15
16
CN601
12516HS-16
VFD-G3
LV-IN1
2K
28 5G
R601
2K
VFD-G4
R602
2K
VFD-G1
R603
2K
29 6G
R604
2K
VFD-G5
R605
2K
VFD-G2
R606
2K
30 7G
KEY-2
KEY-3
KEY-4
KEY-5
KEY-6
KEY-7
R607
VFD-G7
VFD-S14
VFD-S12
VFD-S9
VFD-S4
VFD-S8
VFD-S10
1N4148M
D606
4
15 P15
1N4148M
D605
5
VFD-S11
1N4148M
D604
6
VFD-S10
1N4148M
D603
7
16 P3
1N4148M
D602
8
VFD-S12
1N4148M
D601
9
VFD-S13
KEY-1
47K
AR601
VFD-S11
Vs
VFD-G6
VFD-G3
VFD-G4
VFD-G5
VFD-G6
VFD-G7
Vs
63
56
57
58
59
60
61
62
25
C302
100nF
KEY-1
KEY-2
KEY-3
KEY-4
KEY-5
KEY-6
KEY-7
LV-IN2
ZD301
UZ5.6BSB
6
39
38
37
36
35
34
33
C301
10uF
DSP101
SVM-07SS25
L1
N
3
4
1
PTC201
270M
D210
1T4
RY207
G5T-1A-12VDC
RY208
G5T-1A-12VDC
RY201
G5T-1A-12VDC
RY209
G5T-1A-12VDC
RY210
G5T-1A-12VDC
RY211
G5T-1A-12VDC
D216
MM4148
VT-B
VENT LIGHT
1
37
5
2
CN401
SMW250-05V_WHT
CN201
SMW250-07AV_RED
1
3
5
7
3
CN202
SMW250-09AV_RED
1
7
5
9
REALY
N
TCO
L1
GSPN (Global Service Partner Network)
Contry
Web Site
North America
service.samsungportal.com
Latin America
latin.samsungportal.com
CIS
cis.samsungportal.com
Europe
europe.samsungportal.com
China
china.samsungportal.com
Asia
asia.samsungportal.com
Mideast & Africa
mea.samsungportal.com
©Samsung Electronics Co., Ltd. July. 2007
Printed in Korea
Code No. : DE68-04537A