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MODEL : MC11H6033CT
MODEL CODE : MC11H6033CT/AA
1. Precaution
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagrams
6. Wiring Diagrams
STOP
ECO +30s
START
1. Precaution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
1-1 Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
1-2 Special High Voltage Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
2-1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
2-3 Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
3. Disassembly and Reassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3-1 Disassembly of Magnetron, Motor Assembly and Lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
3-2 Replacement of High Voltage Transformer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-3 Replacement of Door Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
3-4 Replacement of Fuse . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
3-5 Replacement of Drive Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
3-6 Replacement of Control Circuit Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
3-7 Replacement of Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
3-8 Replacement of Stopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
3-9 Replacement of Gasket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4-1 Parts checking method. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4-2 Error Code Numbering Rule. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
4-3 Error Code List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
4-4 Electrical Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
5. PCB Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
5-1 PCB Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
6. Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
6-1 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
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 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 switches 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 circuit. When
Replace all of the following at the same time: connecting the oven to a 15A circuit,make sure that
Primary, door sensing switch and power relay, as circuit 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 H. V. Capacitor
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.
tolerance, safety-related components and adjustments. If
of the special components.
H. V. Diode
Short
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
Features
The stainless Steel(STSS) exterior delivers a luxurious look to your kitchen. The design matches perfectly
with your other kitchecn appliances, providing a harmonious kitchen interior.
With the 1.1 cu.ft capacity, it offers enough space to cook. The big capacity combined with 900 watts of output
achieves superior cooking results.
The interior is fully coated with Ceramic Enamel that offers a solid surface that never scratches and cracks.
So you can enjoy the same new interior even after long use. Moreover, it prevents bacteria and the smooth
severe discoloration and cleaning issuse. But the Ceramic Enamel Interior prevents all of them.
It takes very little force to open the door, making it easy and convenient.
The design allows the door to open softly and economize on space. Additionally, when the door is open, more
of the interior is open to view.
You don't need to set either cooking time or power level. You can adjust the Slim Fry cook category in user
manual. 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
Basic
Item MC32F604TCT/AP
MC11H6033CT/AA
MC32F604TCT/AX
Capacity 32L 32L
Power Source 120V~60Hz 120V~60Hz
Output Power(Microwave) 1,000W 1,000W
Output Power(Grill) 1,300W 1,300W
Power
Output Power(Convection) 1,750W 1,750W
Power Consumption(MW) 1,600W 1,600W
Max Output power 1,750W 1,750W
100W/1,000W 100W/1,000W
Output Power
(IEC-705) (IEC-705)
Operation Frequency 2,450MHz 2,450MHz
Cooling Method Cooling Fan Motor Cooling Fan Motor
GENERAL Dimension Outside 523 x 309 x 506 mm 20 9/16" x 12 3/16" x 19 15/16"
(W x H x D) Cavity 373 x 233 x 370 mm 14 11/16" x 9 1/8" x 14 9/16"
Physical
Volume 1.1 Cu.ft 1.1 Cu.ft
Net 20.0 kg 44.1lbs
Weight
Gross 23.0 kg 50.7lbs
Panama
Export Zone USA
Mexico
Sensor Temperature Temperature
Display LED (Ice Blue) LED (Ice Blue)
Contorl Method TACT + DIAL TACT + DIAL
Door Open Mechanism DROP DOWN DROP DOWN
MW Distribution Mechanism SIDE FEEDING SIDE FEEDING
MWO Mode 1. MW YES YES
Grill Mode 1. GRILL YES YES
Convection
1. Convection YES YES
Mode
1. MW + GRILL YES YES
Combi mode
2. MW + CONVECTION YES YES
1. Slim Fry YES(10) YES(9)
2. Yogurt NO NO
Auto Cook Mode 3. Auto Reheat/Cook YES(10) YES(7)
4. Auto Defrost YES(5) YES(5)
5. Local Recipe YES(6) NO
Other 1. Fast Preheat YES YES
Feature
Convection Temperature 40 ~ 200 100 400
Clock YES YES
MW 99 min 99 min
Grill 60 min 60 min
Max time
Convection 60 min 60 min
Cooking
MW+Grill 60 min 60 min
MW+Convection 60 min 60 min
Power Level YES(6) YES(10)
Sound Option YES YES
Clock System Option
Setting 24H+12H 24H+12H
(24H/12H/24H+12H)
Child Lock YES YES
Outer Panel Color Neo STSS Silver Neo STSS Silver
Door Color STSS + Neo STSS Silver STSS + Neo STSS Silver
Material
Cavity Interior Ceramic Enamel Ceramic Enamel
&
Grill Heater Sheath Heater(1,300W) Sheath Heater(1,300W)
Finishes
Convection Heater Quartz heater(600W) Quartz heater(600W)
Packing Case Yellow Box Color Box
Low Yes Yes
Wire rack
Accessory High Yes Yes
Crusty Plate Yes Yes
7
2-3 Accessory
Item Description Code No. Q'ty
Assy-Guide Roller DE92-90189S 1
Tray-cooking DE74-20016A 1
Low rack : DE97-00136B
Assy-Wire Rack 1
High rack : DE97-00136A
Tray Brolier(Crispy Plate) DE92-90534B 1
8
3. Disassembly and Reassembly
3-1 Disassembly of Magnetron, Motor Assembly and Lamp
Remove the magnetron including the shield case, permanent magnet, choke coils and capacitors (all of which
are contained in one assembly)
Parts Explanation Photo Explanation
1. Disconnect all lead wires from
the magnetron and lamp.
Magnetron, 2. Remove the screw securing air
Motor Assembly cover.
and Lamp
3. Remove the air cover.
9
3. Disassembly and Reassembly
3-1 Disassembly of Magnetron, Motor Assembly and Lamp
Parts Explanation Photo Explanation
4. Remove screws securing the
magnetron to the wave guide.
5. Take out the magnetron very
carefully.
Magnetron,
Motor Assembly
and Lamp
6. Remove two screws from the
back panel.
7. Take out the fan motor.
10
3. Disassembly and Reassembly
3-1 Disassembly of Magnetron, Motor Assembly and Lamp
Parts Explanation Photo Explanation
Magnetron,
8. Remove the oven lamp from
Motor Assembly hole of air cover.
and Lamp
NOTE1: When removing the magnetron, make sure that its 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.
3-2 Replacement of High Voltage Transformer
Parts Explanation Photo Explanation
1. Discharge the high voltage
capacitor.
High Voltage
Transformer
2. Disconnect all the leads.
Replace read, with red
11
3. Disassembly and Reassembly
3-2 Replacement of High Voltage Transformer
Parts Explanation Photo Explanation
3. Remove the mounting bolts.
High Voltage
Transformer
4. Replace the High Voltage
Transformer
5. After replace, reconnect the
PRECAUTION
Servicemen should remove 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
or near these circuits with the oven energized.
12
3. Disassembly and Reassembly
3-3 Replacement of Door Assembly
Parts Explanation Photo Explanation
Door "C"
between Door "A" and Door "C" to remove
Removal of
Door "C". Be careful when handling Door
Door "C" "C" because it is fragile.
Then remove the door assembly.
Door "A"
Removal of
Springs and the arm sliders.
Arm Slider
Removal
Open the door carefully and push the door to
of Door left side.
Assembly
13
3. Disassembly and Reassembly
3-3 Replacement of Door Assembly
Parts Explanation Photo Explanation
Following the procedure as shown in the
Removal of between Door "E" and Door "A" until you
Key Door & hear the `tick' sound.
Spring
should be 0.5mm or less.
Pin
Removal of
First, remove the springs
Key Doors,
Second, remove the pins & key door from
Springs & Door E
Pins spring
spring
Key door
Reassembly Test
leakage.
1. 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.
2. 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.
3. Do the microwave leakage test.
14
3. Disassembly and Reassembly
3-4 Replacement of Fuse
Parts Explanation Photo Explanation
1. Disconnect the oven from the power
source.
2. When 12A fuse blows out by the
operation of interlock monitor switch
Interlock failure, replace the primary interlock
Monitor switch, door sensing switch, monitor
Swithch switch and power relay.
3. 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.
15
3. Disassembly and Reassembly
Parts Explanation Photo Explanation
1. Take out the glass tray,
guide roller from oven cavity,
disconnect power.
2. Remove turn table motor cover
from case bottom.
CAUTION : Remove sharp edge
after cover removal.
Drive Motor
3. Disconnect leads from motor.
4. Remove the screws securing
motor to bottom of oven cavity.
5. Lift out the motor.
6. When replacing the motor, be
sure to remount it in the correct
position.
NOTE : The
in the coupler.
Drive Motor
7. When reassembling the
draive motor cover, turn
the cover 180 degrees and
COVER FIXING SCREW : secure with a screw.
MACHINE SCREW(6006-001170)
NOTE : A screw for the motor cover is
not supplied with the MWO.
Use a spare screw from stock.
16
3. Disassembly and Reassembly
3-6 Replacement of Control Circuit Board
Parts Explanation Photo Explanation
1. Be sure to ground any static electric
charge in your body and never touch
Removal of the control circuit.
Control Box screw 2. Disconnect the connectors from the
Assembly control circuit board.
3. Remove screws securing the control
box assembly.
Assy PCB
Assy Key Module
Screw
1. Remove screws securing the control
Removal of circuit board.
P.C.B Assembly 2. Lift up the control circuit board from
Screw the Ass'y control box.
1. First, Remove the Assy PCB.
2. Remove screw on the key Module
PCB.
Removal of Key
3. Lift out key Module PCB to the
Module underside from the control panel.
4. Remove knob dial, button select A,
Button select B on the control panel
17
3. Disassembly and Reassembly
3-7 Replacement of Heater
Parts Explanation Photo Explanation
1. Remove a screw from the
Bracket upper (Right).
Bracket Upper
2. Remove the latch and screw
from the Bracket upper(left).
18
3. Disassembly and Reassembly
3-8 Replacement of Stopper
Parts Explanation Photo Explanation
1. Press the center of stopper
Stopper with tools.
3-9 Replacement of Gasket
Parts Explanation Photo Explanation
1. Remove the Nuts to
Gasket disassemble the Gasket and
lead Wire.
19
4. Troubleshooting
4-1 Parts checking method
Parts Photo Good No Good
Fuse
T.C.O
H.V Trans
Convection
Fan Motor
Grill Heater
20
4. Troubleshooting
4-2 Error Code Numbering Rule
1. ERROR CODE NUMBERING RULE is applied to a microwave oven and 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
6- Humidity Sensor
7- Steam Sensor
8- Master/Slave communication
X- additional error
21
4. Troubleshooting
4-3 Error Code List
Error
Device Symptom Solution Page
Code
Key Short Error (10 seconds)
If KEY input is sensed for more
Others -SE- than 10 seconds, SE error code Turn off set and restart 23 page
occurs and converts to cancel
mode.
Open
When temperature sensor value
E-21 more than 250 AD value, marks 24 page
E-21 and Check sensor part and con-
coverts to cancel mode. nection of sensor housing and
Short PCB's connector.
When temperature sensor value
E-22 25 page
is below 5 AD value, marks E-22
TEMP SENSOR and converts to cancel mode.
T1 Max Time Error
If the PREHEAT does not reach
the preset temperature within 30
E-23 Check Sensor and Heater 26 page
minutes, it causes E-23 indi-
cation and converts to cancel
mode.
E-24 Over temperature error Check Sensor and Heater 27 page
22
4. Troubleshooting
4-4 Electrical Malfunction
4-4-1 -SE-
Key Short Error (- SE -)
YES Is the key not recognized
at all?
NO
YES Is the key recognized
intermittently?
NO
YES Is a specific key
not recognized?
NO
The membrane
is defective.
S/W Error
Replace the
Control Panel.
NO After Power > On,
does the symptom continue?
YES
Replace the PCB.
Perform the operation again and check if it
is working properly.
membrane
Connector
23
4. Troubleshooting
4-4-2 E-21
Sensor Open Error (E-21)
: Check if the sensor housing
is inserted into the connector
Connect the sensor. Is the sensor disconnected? of the main PCB.
sensor
Connect the Is the sensor wire
: Check if the sensor wire is damaged, if the
wire properly. connected properly?
housing is loose and if the sensor and the
wire are properly connected.
housing
Does the voltage change connector
S/W Error
as the humidity, temperature
and weight change?
: Check if the voltage of the GND and sensor
changes using a digital multi-meter
by forcefully changing the humidity, temperature
and weight.
After Power -> On, does
the symptom continue? The sensor is out of order.
Replace the PCB.
Replace the sensor.
Perform the operation again and check if it
is working properly.
24
4. Troubleshooting
4-4-3 E-22
Sensor Short Error (E-22)
: Check if both terminals of the
sensor are slightly shorted.
Remove the shorted part Is the sensor shorted?
of the temperature sensor.
sensor
: Check if the sensor and related
parts such as the connector or
Remove any foreign Is the sensor terminal part
soldering parts are slightly shorted.
Substance from the of the PCB shorted?
shorted part.
sensor
terminal
Does the voltage change
S/W Error as the humidity, temperature
and weight change. : Check if the voltage of the GND and
sensor changes using a digital multi-meter
by forcefully changing the humidity,
temperature and weight.
After Power > On, does
the symptom continue?
The sensor is out of order.
connector
Replace the PCB.
Replace the sensor.
Perform the operation again and
check if it is working properly.
25
4. Troubleshooting
4-4-4 E-23
Preheating Error (E-23)
: Check the voltages of
both heater terminals.
Check the heater
Does the heater work?
related drive part.
Heater
terminal
Replace the Is the heater temperature
heater. very low? : After operating the heater for more then
10 minutes check if the heater temperature
remains low.
Reconnect the
Is the temperature sensor
temperature
connected properly?
sensor properly.
Is the resistance
Replace the between the heater terminals
heater. A short circuit increases the resistance
S/W Error
Heater
terminal
After Power > On,
does the symptom continue?
Replace the PCB.
Perform the operation again and check if it
is working properly.
26
4. Troubleshooting
4-4-5 E-24
Oven Temperature Error (E-24)
An "E-24" error Has the oven internal temperature
occurred. reached over 200 degrees?
Reconnect the Is the temperature sensor
temperature connectivity normal?
sensor properly.
Check and repair
the heater Is the Heater
Turn the oven off and let drive part if connectivity normal?
it cool sufficiently. necessary.
S/W Error
After Power > On,
does the symptom
continue?
Replace the PCB.
Perform the operation again and check
if it is working properly
sensor
housing
27
4. Troubleshooting
Oven does not operate. *Inspection method
NO Is Primary interlock NO Secondary
Is Fuse OK? interlock
switch normal? switch
Primary
interlock
switch
YES
YES
Door
Sensing
switch
NO
Is Power Relay normal?
Is the magnetron NO NO
temperature switch normal? Replace switch
Power supply circuit check point
YES
Is SMPS power supply NO Check power supply NO
circuit normal? circuit
YES
Is the IC01 output of NO Check NO
PCB normal? Relay control circuit Relay control circuit check point
Is high voltage diode
YES
normal?
Checking high Is high voltage diode NO
voltagecircuts normal?
YES
Is high voltage NO
capacitor normal?
YES
Is magnetron normal? NO
28
4. Troubleshooting
4-4-7 If button malfunction
Buttons of the control panel do not work. *Inspection method
Are button pressed NO
Refer to User Manual
in the correct order?
YES Tact type
Is the connector of the NO
control panel normal?
YES
Replace PCB.
Menbrane type
29
4. Troubleshooting
Food is not heated even though the oven works. *Inspection method
Is the latch switch NO
Method to control latch switch
operating normally?
Door open
YES
Checking high voltage circuits
Door Close
1. Loosen the screw to check
whether the primary interlock switch
and secondary interlock switch works
by slightly moving latches to right and left.
Then firmly tighten nuts.
2. Loosen the screw to check
whether the Door sensing interlock
switch works by slightly moving
latches to right and left.
Then firmly tighten nuts.
30
5. PCB Diagrams
5-1 PCB Diagrams
9
13
10
12
7
3 2 4 1 5 6
11 8
Parts
No. Part Name Function and Rule
Number
1 RY01 Main Relay Fan, Lamp, T/T Control
2 RY02 Inrush Relay Inrush Electric Current Decrease
3 RY03 Power Relay MW Power Control
4 RY04 T/T Relay Turn Table Motor Control (model option)
5 RY05 Fan Relay Fan Motor Control
6 RY06 Conv. Motor Relay Conv. Motor Control
7 RY07 Grill Heater Relay Grill Heater Control
8 RY08 Conv. Heater Relay Conv. Heater Control
9 CN01 Power Connector A Terminal for Connecting with Power supply
10 CN02 Relay Connector A Terminal for Connecting with Relay Contact (Load Control)
11 CN03 Membrane switch Connector A Terminal for Connecting with Membrane Switch
12 CN04 Gas Sensing Connector A Terminal for Connecting with Gas Sensor
13 CN05 On board witing connector This is for on board writing micom program
31
5. PCB Diagrams
5-1 PCB Diagrams
1) T/TABLE RELAY (MODEL OPTION) 1) AC POWER LIVE (110-120VAC)
2) NO PIN 2) NO PIN
3) MAIN RELAY (Connect Lamp, T/Table) 3) MONITOR S/W
4) NO PIN 4) NO PIN
5) Fan Motor 5) INRUSH CIRCUIT
6) NO PIN
7) CONV. MOTOR
1) KEY OUTPUT1 1) DOOR SWITCH .+12V 1) GRILL HEATER RELAY CONTACT1 1) POWER RELAY CONTACT1
2) KEY OUTPUT2 2) GND 2) GRILL HEATER RELAY CONTACT2 (HVT POWER1)
3) KEY OUTPUT3 3) DOOR SWITCH RY_12V AC POWER NEUTAL
4) KEY OUTPUT4 4) TEMP. SENSOR 1 (110-120VAC))
5) KEY OUTPUT5 5) TEMP. SENSOR 2. GND 2) POWER RELAY CONTACT2
6) KEY OUTPUT6 (HVT POWER2)
7) KEY OUTPUT7 1) CONV. HEATER RELAY CONTACT1
8) KEY OUTPUT8 2) CONV. HEATER RELAY CONTACT2
ENCODER COMMON
(ENCODER S/W MODEL)
9) KEY INPUT1
10) KEY INPUT2
11) KEY INPUT3
12) KEY INPUT4
13) KEY INPUT5
14) KEY INPUT6
15) KEY INPUT7
16) KEY INPUT8
32
6. Wiring Diagrams
6-1 Wiring Diagrams
33
WHT WHT MAGNETRON
HIGH VOLTAGE
DIODE
BRN
TO CHASSIS
BRN
SECONDARY SWITCH
TOP RED
FA F
ORG BRN
YEL
ORG HIGH VOLTAGE CAPACITOR
WHT BLU
RED RED
34
RED
BRN
DOOR SENSING SWITCH MONITOR SWITCH
BLK
BOTTOM CENTER SYMBOL COLOR
ORG ORANGE
HIGH VOLTAGE WHT WHITE
BLK BLU TRANSFORMER
BLK BLACK
BLU BLUE
RED RED
BLU
POWER RELAY
6. Wiring Diagrams
6-1 Wiring Diagrams
GSPN (GLOBAL SERVICE PARTNER NETWORK)
Area Web Site
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