Amana Mm-3022c, Mm-3022d Installation Guide
R
Microwave Oven
Service Manual
LD510D
CAUTION
BEFORE SERVICING THE UNIT, READ THE
SAFETY PRECAUTIONS IN THIS MANUAL.
This device is to be serviced only by properly qualified service personnel.
Consult the service manual for proper service procedures to assure continued safety operation and for precautions to be
taken to avoid possible exposure to excessive microwave energy.
PRECAUTIONS TO BE OBSERVED BEFORE AND
DURING SERVICING TO AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
A) Do not operate or allow the oven to be operated with the door open.
B) Make the following safety checks on all ovens to be serviced before activating the magnetron or other
microwave source, and make repairs as necessary; (1) interlock operation, (2) proper door closing, (3)
seal and sealing surfaces (arcing, wear, and other damage), (4) damage to or loosening of hinges and
latches, (5) evidence of dropping or abuse.
C) Before turning on microwave power for any service test or inspection within the microwave generating
compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment,
integrity, and connections.
D) Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation
and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual
before the oven is released to the owner.
E) A microwave leakage check to verify compliance with the Federal Performance Standard should be
performed on each oven prior to release to the owner.
SAFETY PRECAUTIONS
(Page)
SAFETY PRECAUTIONS
---------------------------------------------------------------------
Inside front cover
SPECIFICATIONS
-----------------------------------------------------------------------------------------------------
1-1
CAUTIONS
--------------------------------------------------------------------------------------------------------------
2-1
INSTALLATIONS
------------------------------------------------------------------------------------------------------
3-1
OPERATING INSTRUCTIONS
------------------------------------------------------------------------------------
4-1
FEATURES
------------------------------------------------------------------------------------------------------------------------
4-1
OPERATION CHECK
---------------------------------------------------------------------------------------------------------
4-1
OPERATING PROCEDURE
-------------------------------------------------------------------------------------------------
4-1
SCHEMATIC DIAGRAM
------------------------------------------------------------------------------------------------------
4-2
CIRCUIT DESCRIPTION
-----------------------------------------------------------------------------------------------------
4-3
SERVICE INFORMATION
------------------------------------------------------------------------------------------
5-1
TOOLS AND MEASURING INSTRUMENTS
---------------------------------------------------------------------------
5-1
MICROWAVE LEAKAGE TEST
--------------------------------------------------------------------------------------------
5-1
MEASUREMENT OF MICROWAVE POWER OUTPUT
-----------------------------------------------------------
5-3
DISASSEMBLY AND ADJUSTMENT
-------------------------------------------------------------------------------------
5-3
INTERLOCK CONTINUITY TEST
------------------------------------------------------------------------------------------
5-8
COMPONENT TEST PROCEDURE
--------------------------------------------------------------------------------------
5-9
TROUBLE SHOOTING
------------------------------------------------------------------------------------------------------
5-12
EXPLODED VIEW
-----------------------------------------------------------------------------------------------------
6-1
REPLACEMENT PARTS LIST
------------------------------------------------------------------------------------
7-1
CONTENTS
1-1
This microwave oven is designed for commercial use only.
It is not recommended for built-in installation.
ITEM
MODEL
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
Control Complement
Nameplate Location
Accessories
DESCRIPTION
DEL10D
230 Volts AC50 Hz
1,00
Single phase, 3 wire grounded
1,000 Watts full microwave power (IEC60705)
2,450 MHz
2M246 - 050 GF
20
7
/8” (W) x 123/8” (H) x 151/2” (D) mm
34 lbs (approx.)
37 lbs (approx.)
Mechanical Rotary System
Full power Cooking
Owner's manual
1-1
This microwave oven is designed for commercial use only.
It is not recommended for built-in installation.
ITEM
MODEL
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
Control Complement
Nameplate Location
Accessories
DESCRIPTION
DEL10D
230 Volts AC50 Hz
1,00
Single phase, 3 wire grounded
1,000 Watts full microwave power (IEC60705)
2,450 MHz
2M246 - 050 GF
in.
20
7
/8” (W) x 123/8” (H) x 151/2” (D) mm
34 lbs (approx.)
37 lbs (approx.)
Mechanical Rotary System
Full power Cooking
Owner's manual
1-1
This microwave oven is designed for commercial use only.
It is not recommended for built-in installation.
ITEM
MODEL
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
Control Complement
Nameplate Location
Accessories
DESCRIPTION
DEL10D
230 Volts AC50 Hz
1,00
Single phase, 3 wire grounded
1,000 Watts full microwave power (IEC60705)
2,450 MHz
2M246 - 050 GF
20
7
/8” (W) x 123/8” (H) x 151/2” (D) mm
34 lbs (approx.)
37 lbs (approx.)
Mechanical Rotary System
Full power Cooking
Owner's manual
1-1
This microwave oven is designed for commercial use only.
It is not recommended for built-in installation.
ITEM
MODEL
Power Requirement
Power Output
Microwave Frequency
Magnetron
Timer
Outside Dimensions
Cavity Dimensions
Net Weight
Shipping weight
Control Complement
Nameplate Location
Accessories
DESCRIPTION
LD510D
230 Volts AC 50 Hz
1,300 Watts
Single phase, 3 wire grounded
1,000 Watts full microwave power (IEC60705)
2,450 MHz
2M246 - 050 GF
0 ~ 7 min.
20
7
/8” (W) x 123/8” (H) x 151/2” (D) mm
34 lbs (approx.)
37 lbs (approx.)
Mechanical Rotary System
Full power Cooking
Owner's manual
Control
Panel Side
Control
Panel Side
Control
Panel Side
Control
Panel Side
Control
Panel Side
Control
Panel Side
Control
Panel Side
Control
Panel Side
SPECIFICATIONS
9
9
9
9
13
/16”(W) x 95/32”(H) x 14
13
/16”(W) x 95/32”(H) x 14
13
/16”(W) x 95/32”(H) x 14
13
/16”(W) x 95/32”(H) x 14
3
3
3
3
/8
(D) mm
/8
(D) mm
/8
(D) mm
/8
(D) mm
”
”
”
”
¥ DO NOT operate on a 2-wire extension cord during
repair and use.
¥ NEVER TOUCH any oven components or wiring during
operation.
¥ BEFORE TOUCHING any parts of the oven, always
remove the power plug from the outlet.
¥ For about 30 seconds after the oven stops, an electric
charge remains in the high voltage capacitor. When
replacing or checking, you must discharge the high
voltage capacitor by shorting across the two terminals
with an insulated screwdriver.
¥
Remove your watches whenever working close to or
replacing the Magnetron.
¥ DO NOT touch any parts of the control panel circuit. A
resulting static electric discharge may damage this
P.C.B.
¥ NEVER operate the oven with no load.
¥ NEVER injure the door seal and front plate of the oven
cavity.
¥ NEVER put iron tools on the magnetron.
¥ NEVER put anything into the latch hole and the
interlock switches area.
¥ Proper operation of the microwave oven requires that
the magnetron be assembled to the waveguide and
cavity. Never operate the magnetron unless it is
properly installed.
¥ Be sure that the magnetron gasket is properly
installed around the dome of the tube whenever
installing the magnetron.
2-1
CAUTIONS
Unlike other appliances, the microwave oven is
high-voltage and high-current equipment.
Though it is free from danger in ordinary use,
extreme care should be taken during repair.
THE OVEN IS TO BE SERVICED ONLY
BY PROPERLY QUALIFIED SERVICE
PERSONNEL.
MICROWAVE RADIATION
Personnel should not be exposed to the
microwave energy which may radiate from the
magnetron or other microwave generating
device if it is improperly used or connection.
All input and output microwave connections,
waveguide, flange, and gasket must be secure
never operate the device without a microwave
energy absorbing load attached.
Never look into an open waveguide or antenna
while the device is energized.
Gasket
ANTENNA
COOLING FIN
MAGNETRON
CHASSIS GROUND
FILAMENT
TERMINALS
MAGNETRON
INSTALLATIONS
3-1
INSTALLING
1. Empty the microwave oven and clean inside it with
a soft, damp cloth. Check for damage such as
misaligned door, damage around the door or dents
inside the cavity or on the exterior.
2. Put the oven on a counter, table, or shelf that is
strong enough to hold the oven and the food and
utensils you put in it. (The control panel side of the
oven is the heavy side. Use care when handling.)
3. Do not block the vent and the air intake openings.
Blocking vent or air intake openings can cause
damage to the oven and poor cooking results.
Make sure the microwave oven legs are in place to
ensure proper air flow.
4. The oven should not be installed in any area where
heat and steam are generated, because they may
damage the electronic or mechanical parts of the
unit.
Do not install the oven next to a conventional
surface unit or above a conventional wall oven.
5. Use microwave oven in an ambient temperature
less than 104°F(40°C).
6. Place the microwave oven on a sturdy and flat
surface at least 10 cm(4 inches) from the wall.
7. Place the microwave oven as far away as possible
from TV, RADIO, COMPUTER, etc., to prevent
interference.
8. Do not touch the front glass during or after cooking
of the Grill and Combination mode.
This glass is very hot during heater operating.
9. Do not operate the oven at microwave and
combination mode with Grill rack placed in the
cavity when the oven is empty.
EARTHING INSTRUCTIONS
This microwave oven is designed to be used in a fully
earthed condition.
It is imperative, therefore, to make sure it is properly
earthed before servicing
WARNINGTHIS APPLIANCE
MUST BE EARTHED
IMPORTANT
As the colors of the wires in the mains lead of this
appliance may not correspond with the colored
markings identifying the terminals in your plug,
proceed as follows.
The wire which is colored green-and-yellow must be
connected to the terminal in the plug which is marked
with the letter E or by the earth symbol ( ) or
colored green or green-and-yellow.
The wire which is colored blue must be connected to
the terminal in the plug which is marked with the letter
N or colored black.
The wire which is colored brown must be connected
to the terminal in the plug which is marked with the
letter L or colored red.
BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.
INSTALLATIONS
3-1
INSTALLING
1. Empty the microwave oven and clean inside it with
a soft, damp cloth. Check for damage such as
misaligned door, damage around the door or dents
inside the cavity or on the exterior.
2. Put the oven on a counter, table, or shelf that is
strong enough to hold the oven and the food and
utensils you put in it. (The control panel side of the
oven is the heavy side. Use care when handling.)
3. Do not block the vent and the air intake openings.
Blocking vent or air intake openings can cause
damage to the oven and poor cooking results.
Make sure the microwave oven legs are in place to
ensure proper air flow.
4. The oven should not be installed in any area where
heat and steam are generated, because they may
damage the electronic or mechanical parts of the
unit.
Do not install the oven next to a conventional
surface unit or above a conventional wall oven.
5. Use microwave oven in an ambient temperature
less than 104°F(40°C).
6. Place the microwave oven on a sturdy and flat
surface at least 10 cm(4 inches) from the wall.
7. Place the microwave oven as far away as possible
from TV, RADIO, COMPUTER, etc., to prevent
interference.
8. Do not touch the front glass during or after cooking
of the Grill and Combination mode.
This glass is very hot during heater operating.
9. Do not operate the oven at microwave and
combination mode with Grill rack placed in the
cavity when the oven is empty.
EARTHING INSTRUCTIONS
This microwave oven is designed to be used in a fully
earthed condition.
It is imperative, therefore, to make sure it is properly
earthed before servicing
WARNINGTHIS APPLIANCE
MUST BE EARTHED
IMPORTANT
As the colors of the wires in the mains lead of this
appliance may not correspond with the colored
markings identifying the terminals in your plug,
proceed as follows.
The wire which is colored green-and-yellow must be
connected to the terminal in the plug which is marked
with the letter E or by the earth symbol ( ) or
colored green or green-and-yellow.
The wire which is colored blue must be connected to
the terminal in the plug which is marked with the letter
N or colored black.
The wire which is colored brown must be connected
to the terminal in the plug which is marked with the
letter L or colored red.
BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.
10cm
INSTALLATIONS
3-1
INSTALLING
1. Empty the microwave oven and clean inside it with
a soft, damp cloth. Check for damage such as
misaligned door, damage around the door or dents
inside the cavity or on the exterior.
2. Put the oven on a counter, table, or shelf that is
strong enough to hold the oven and the food and
utensils you put in it. (The control panel side of the
oven is the heavy side. Use care when handling.)
3. Do not block the vent and the air intake openings.
Blocking vent or air intake openings can cause
damage to the oven and poor cooking results.
Make sure the microwave oven legs are in place to
ensure proper air flow.
4. The oven should not be installed in any area where
heat and steam are generated, because they may
damage the electronic or mechanical parts of the
unit.
Do not install the oven next to a conventional
surface unit or above a conventional wall oven.
5. Use microwave oven in an ambient temperature
less than 104°F(40°C).
6. Place the microwave oven on a sturdy and flat
surface at least 10 cm(4 inches) from the wall.
7. Place the microwave oven as far away as possible
from TV, RADIO, COMPUTER, etc., to prevent
interference.
8. Do not touch the front glass during or after cooking
of the Grill and Combination mode.
This glass is very hot during heater operating.
9. Do not operate the oven at microwave and
combination mode with Grill rack placed in the
cavity when the oven is empty.
EARTHING INSTRUCTIONS
This microwave oven is designed to be used in a fully
earthed condition.
It is imperative, therefore, to make sure it is properly
earthed before servicing
WARNINGTHIS APPLIANCE
MUST BE EARTHED
IMPORTANT
As the colors of the wires in the mains lead of this
appliance may not correspond with the colored
markings identifying the terminals in your plug,
proceed as follows.
The wire which is colored green-and-yellow must be
connected to the terminal in the plug which is marked
with the letter E or by the earth symbol ( ) or
colored green or green-and-yellow.
The wire which is colored blue must be connected to
the terminal in the plug which is marked with the letter
N or colored black.
The wire which is colored brown must be connected
to the terminal in the plug which is marked with the
letter L or colored red.
BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.
INSTALLATIONS
3-1
INSTALLING
1. Empty the microwave oven and clean inside it with
a soft, damp cloth. Check for damage such as
misaligned door, damage around the door or dents
inside the cavity or on the exterior.
2. Put the oven on a counter, table, or shelf that is
strong enough to hold the oven and the food and
utensils you put in it. (The control panel side of the
oven is the heavy side. Use care when handling.)
3. Do not block the vent and the air intake openings.
Blocking vent or air intake openings can cause
damage to the oven and poor cooking results.
Make sure the microwave oven legs are in place to
ensure proper air flow.
4. The oven should not be installed in any area where
heat and steam are generated, because they may
damage the electronic or mechanical parts of the
unit.
Do not install the oven next to a conventional
surface unit or above a conventional wall oven.
5. Use microwave oven in an ambient temperature
less than 104°F(40°C).
6. Place the microwave oven on a sturdy and flat
surface at least 10 cm(4 inches) from the wall.
7. Place the microwave oven as far away as possible
from TV, RADIO, COMPUTER, etc., to prevent
interference.
8. Do not touch the front glass during or after cooking
of the Grill and Combination mode.
This glass is very hot during heater operating.
9. Do not operate the oven at microwave and
combination mode with Grill rack placed in the
cavity when the oven is empty.
EARTHING INSTRUCTIONS
This microwave oven is designed to be used in a fully
earthed condition.
It is imperative, therefore, to make sure it is properly
earthed before servicing
WARNINGTHIS APPLIANCE
MUST BE EARTHED
IMPORTANT
As the colors of the wires in the mains lead of this
appliance may not correspond with the colored
markings identifying the terminals in your plug,
proceed as follows.
The wire which is colored green-and-yellow must be
connected to the terminal in the plug which is marked
with the letter E or by the earth symbol ( ) or
colored green or green-and-yellow.
The wire which is colored blue must be connected to
the terminal in the plug which is marked with the letter
N or colored black.
The wire which is colored brown must be connected
to the terminal in the plug which is marked with the
letter L or colored red.
BEFORE YOU BEGIN, READ THE FOLLOWING INSTRUCTIONS COMPLETELY AND CAREFULLY.
10cm
The wires in this mains lead are colored in
accordance with the following code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
The wires in this mains lead are colored in
accordance with the following code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
The wires in this mains lead are colored in
accordance with the following code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
The wires in this mains lead are colored in
accordance with the following code:
Green-and-yellow: Earth
Blue: Neutral
Brown: Live
4-1
FEATURES
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
Timer Knob
Splatter Shield
Door Open Button
Safety Door Lock System
Door Window Screen
OPERATION CHECK
OPERATING INSTRUCTIONS
Heating
1. Open oven door, place food in oven and close door.
2. Set timer knob to desired cooking time by
turning clockwise.
• Turn timer knob slightly past, and then back to
desired cooking time for the most accurate time
setting.
• Heating begins.
3. When time has elapsed, bell sounds and oven shuts
off.
Pausing or Stopping Operation
1. Open oven door.
• Oven stops cooking.
• Timer maintains current time setting.
2. Cooking resumes when door is closed.
3. Turn timer knob counterclockwise to “OFF” to clear all
cooking time.
To avoid damaging oven, only heat in microwave
oven when turntable is in place.
OPERATION CHECK
Heating
1. Open oven door, place food in oven and close door.
2. Set timer knob to desired cooking time by
turning clockwise.
• Turn timer knob slightly past, and then back to
desired cooking time for the most accurate time
setting.
• Heating begins.
3. When time has elapsed, bell sounds and oven shuts
off.
Pausing or Stopping Operation
1. Open oven door.
• Oven stops cooking.
• Timer maintains current time setting.
2. Cooking resumes when door is closed.
3. Turn timer knob counterclockwise to “OFF” to clear all
cooking time.
To avoid damaging oven, only heat in microwave
oven when turntable is in place.
OPERATION CHECK
Heating
1. Open oven door, place food in oven and close door.
2. Set timer knob to desired cooking time by
turning clockwise.
• Turn timer knob slightly past, and then back to
desired cooking time for the most accurate time
setting.
• Heating begins.
3. When time has elapsed, bell sounds and oven shuts
off.
Pausing or Stopping Operation
1. Open oven door.
• Oven stops cooking.
• Timer maintains current time setting.
2. Cooking resumes when door is closed.
3. Turn timer knob counterclockwise to “OFF” to clear all
cooking time.
To avoid damaging oven, only heat in microwave
oven when turntable is in place.
OPERATION CHECK
Heating
1. Open oven door, place food in oven and close door.
2. Set timer knob to desired cooking time by
turning clockwise.
• Turn timer knob slightly past, and then back to
desired cooking time for the most accurate time
setting.
• Heating begins.
3. When time has elapsed, bell sounds and oven shuts
off.
Pausing or Stopping Operation
1. Open oven door.
• Oven stops cooking.
• Timer maintains current time setting.
2. Cooking resumes when door is closed.
3. Turn timer knob counterclockwise to “OFF” to clear all
cooking time.
To avoid damaging oven, only heat in microwave
oven when turntable is in place.
To avoid fire, do not dry newspapers or clothes in
microwave oven.
To avoid fire, do not dry newspapers or clothes in
microwave oven.
To avoid fire, do not dry newspapers or clothes in
microwave oven.
To avoid fire, do not dry newspapers or clothes in
microwave oven.
CAUTION
CAUTION
SCHEMATIC DIAGRAM
4-2
CIRCUIT DESCRIPTION
GENERAL DETAILS
• When the door is closed, the primary switch is ON, the
secondary switch is ON, and the monitor switch opens
(contact COM and NO).
• The latches are secured by the latch board, the oven
light turns on while the oven is operation.
WHEN THE TIMER KNOB IS ROTATED
• When the timer knob is rotated, The contacts of timer
switch close.
• The contact of the secondary switch close the circuit.
• Power input is supplied to the high voltage transformer
through the fuse to the primary, timer and secondary
switches.
• Stirrerfan rotates.
• The fan motor rotates and cools the magnetron by
blowing the air (coming from the intake on the backplate).
• The air is also directed into the oven to exhaust the
vapor in the oven through the upper plate.
• The timer starts rotating.
• 3.3 volts AC is generated from the filament winding of
the high voltage transformer. This 3.3 volts is applied to
the magnetron to heat the magnetron filament through
two noise-preventing choke coils.
• A high voltage of approximately 2100 volts AC is
generated in the secondary of the high voltage
transformer which is increased by the action of the high
voltage diode and charging of the high voltage
capacitor.
• The negative 4,000 Volts DC is applied to the filament
of the magnetron.
WHEN THE DOOR IS OPENED DURING
COOKING
• Both the primary and timer switches are cut off primary
winding voltage of the high voltage transformer.
• When the door is opened, the secondary switch is
opened and when the door is closed, the secondary
switch is closed.
• The timer, stirrerfan and fan motor stop.
• As the door is opened, if the contact of primary switch
fails to open, the fuse opens due to the large current
surge caused by the monitor switch activation, which in
turn stops magnetron oscillation.
4-3
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
FUSE
H.V.
TRANS-
FORMER
P/S
P/S: Primary Switch
T/S: Timer Switch
S/S: Secondary Switch
M/S: Monitor Switch
T/S
S/S
M/S
P/S
T/S
FUSE
P/S: Primary Switch
T/S: Timer Switch
S/S
M/S
S/S: Secondary Switch
M/S: Monitor Switch
H.V.
TRANS-
FORMER
Loading...