Download R-1610 R-1611 R-1612 SUPPLEMENTAL SERVICE MANUAL

R-1610
R-1611
R-1612
SUPPLEMENTAL SERVICE MANUAL
S5911R1610X//
OVER THE RANGE
MICROWAVE OVEN
MODELS
TURNTABLE
SENSOR DEFROST
HELP
OFF COOK
Sensor Cooking
Popcorn
Fresh
vegetables
Ground
meat
Sensor
reheat
Frozen
entrees
Baked
potato
Frozen
snacks
Custom
Help
Frozen
vegetables
Rice
Poultry
Fish/
seafood
More from your Microwave
Breakfast
Bar
Lunch on
the Run
Super
Defrost
Compu
Defrost
1
6
Turntable
On/Off
Memory
Cook
Kitchen Timer
Clock
Work
Light
3
8
2
7
One Dish
Dinners
Beverage
Center
4
9
Power
Level
Stop
Clear
Night
Light
5
0
Minute
Plus
START
Touch On
Fan
Hi/Lo
Auto
Fan
R-1610
R-1611
R-1612
In the interest of user-safety the oven should be restored to its original
condition and only parts identical to those specified should be used.
WARNING TO SERVICE PERSONNEL: Microwave ovens contain circuitry capable of producing very high voltage and
current. Contact with the following parts may result in a
severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
This is a supplemental Service Manual for Models R-1610, R-1611 and R-1612. These models are quite similar to
base model R-1600,R-1601 and R-1602. Use this supplemental manual together with the Base Models Service
Manual (Reference No. is S4910R1160X//) for complete operation, service information, etc..
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE EXPOSURE TO EXCESSIVE MICROWAVE ENERGY ................... INSIDE FRONT COVER
BEFORE SERVICING ...................................................................................................... INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL ................................................................................................................ 1
MICROWAVE MEASUREMENT PROCEDURE ................................................................................................... 2
FOREWORD AND WARNING ............................................................................................................................... 3
PRODUCT SPECIFICATIONS .............................................................................................................................. 4
GENERAL INFORMATION ................................................................................................................................... 4
OPERATION .......................................................................................................................................................... 6
TROUBLESHOOTING GUIDE .............................................................................................................................. 8
TEST PROCEDURE .............................................................................................................................................. 9
TOUCH CONTROL PANEL ASSEMBLY ............................................................................................................ 11
CONPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE ................................................................ 14
PICTORIAL DIAGRAM ........................................................................................................................................ 16
POWER UNIT CIRCUIT ...................................................................................................................................... 17
LSI UNIT CIRCUIT ............................................................................................................................................... 18
INDICATOR CIRCUIT .......................................................................................................................................... 19
PARTS LIST ........................................................................................................................................................ 20
PACKING AND ACCESSORIES ......................................................................................................................... 25
SHARP CORPORATION
This document has been published to be used for after
sales service only.
The contents are subject to change without notice.
R-1610
R-1611
R-1612
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.
BEFORE SERVICING
Before servicing an operative unit, perform a microwave emission check as per the Microwave
Measurement Procedure outlined in this service manual.
If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS
CORPORATION immediately @1-800-237-4277.
If the unit operates with the door open, service person should 1) tell the user not to operate the oven
and 2) contact SHARP ELECTRONICS CORPORATION and Food and Drug Administration's
Center for Devices and Radiological Health immediately.
Service personnel should inform SHARP ELECTRONICS CORPORATION of any certified unit found
with emissions in excess of 4mW/cm2. The owner of the unit should be instructed not to use the unit
until the oven has been brought into compliance.
R-1610
R-1611
R-1612
WARNING TO SERVICE PERSONNEL
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with
following parts may result in a severe, possibly
fatal, electrical shock.
(Example)
High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..
Read the Service Manual carefully and follow all
instructions.
Don't Touch !
Danger High Voltage
When the testing is completed,
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Reconnect the leads to the primary of the power
transformer.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer case is
installed.
7. Run the oven and check all functions.
Before Servicing
1. Disconnect the power supply cord
remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
, and then
WARNING:RISK OF ELECTRIC SHOCK.
DISCHARGE THE HIGH-VOLTAGE
CAPACITOR BEFORE SERVICING.
The high-voltage capacitor remains charged about 60
seconds after the oven has been switched off. Wait for 60
seconds and then short-circuit the connection of the highvoltage capacitor (that is the connecting lead of the highvoltage rectifier) against the chassis with the use of an
insulated screwdriver.
After repairing
1. Reconnect all leads removed from components during
testing.
2. Reinstall the outer case (cabinet).
3. Reconnect the power supply cord after the outer case is
installed.
4. Run the oven and check all functions.
Whenever troubleshooting is performed the power supply
must be disconnected. It may in, some cases, be necessary
to connect the power supply after the outer case has been
removed, in this event,
1. Disconnect the power supply cord, and then remove
outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads to the primary of the power
transformer.
5. Ensure that these leads remain isolated from other
components and oven chassis by using insulation tape.
6. After that procedure, reconnect the power supply cord.
Microwave ovens should not be run empty. To test for the
presence of microwave energy within a cavity, place a cup
of cold water on the oven turntable, close the door and set
the power to HIGH and set the microwave timer for two (2)
minutes. When the two minutes has elapsed (timer at zero)
carefully check that the water is now hot. If the water
remains cold carry out Before Servicing procedure and reexamine the connections to the component being tested.
When all service work is completed and the oven is fully
assembled, the microwave power output should be checked
and microwave leakage test should be carried out.
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MICROWAVE MEASUREMENT PROCEDURE
A. Requirements:
1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave oven
should not exceed 1mW/cm2 at any point 5cm or more from the external surface of the oven, measured prior to acquisition
by a purchaser, and thereafter (through the useful life of the oven), 5 mW/cm2 at any point 5cm or more from the external
surface of the oven.
2) Safety interlock switches Primary interlock relay and door sensing switch shall prevent microwave radiation emission in
excess of the requirement as above mentioned, secondary interlock switch shall prevent microwave radiation emission
in excess of 5 mW/cm2 at any point 5cm or more from the external surface of the oven.
B. Preparation for testing:
Before beginning the actual measurement of leakage, proceed as follows:
1) Make sure that the actual instrument is operating normally as specified in its instruction booklet.
Important:
Survey instruments that comply with the requirement for instrumentation as prescribed by the performance standard for
microwave ovens, 21 CFR 1030.10(c)(3)(i), must be used for testing.
2) Place the oven tray in the oven cavity.
3) Place the load of 275±15 ml (9.8 oz) of tap water initially at 20±5˚C (68˚F) in the center of the oven cavity.
The water container shall be a low form of 600 ml (20 oz) beaker with an inside diameter of approx. 8.5 cm (3-1/2 in.)
and made of an electrically nonconductive material such as glass or plastic.
The placing of this standard load in the oven is important not only to protect the oven, but also to insure that any leakage
is measured accurately.
4) Set the cooking control on Full Power Cooking Mode
5) Close the door and select a cook cycle of several minutes. If the water begins to boil before the survey is completed,
replace it with 275 ml of cool water.
C. Leakage test:
Closed-door leakage test (microwave measurement)
1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the door and the body of the oven.
2) Move the probe slowly, not faster than 1 in./sec. (2.5 cm/sec.) along the gap, watching for the maximum indication on
the meter.
3) Check for leakage at the door screen, sheet metal seams and other accessible positions where the continuity of the metal
has been breached (eg., around the switches, indicator, and vents).
While testing for leakage around the door pull the door away from the front of the oven as far as is permitted by the closed
latch assembly.
4) Measure carefully at the point of highest leakage and make sure that the highest leakage is no greater than 4mW/cm2,
and that the secondary interlock switch does turn the oven OFF before any door movement.
NOTE: After servicing, record data on service invoice and microwave leakage report.
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SERVICE MANUAL
OVER THE RANGE MICROWAVE OVEN
R-1610/ R-1611/1612
FOREWORD
This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel with Operation and Service Information
for the SHARP OVER THE RANGE MICROWAVE OVEN, R-1610/ R-1611/ R1612.
The models R-1610, R-1611 and R-1612 are quite similar to base models R-1600, R-1601 and R-1602 (Reference No. is
S3910R1600X//).
It is recommended that service personnel carefully study the entire text of this manual and base model service manual so
that they will be qualified to render satisfactory customer service.
Check the interlock switches and the door seal carefully. Special attention should be given to avoid electrical shock and
microwave radiation hazard.
WARNING
Never operate the oven until the following points are ensured.
(A) The door is tightly closed.
(B) The door brackets and hinges are not defective.
(C) The door packing is not damaged.
(D) The door is not deformed or warped.
(E) There is not any other visible damage with the oven.
Servicing and repair work must be carried out only by trained service personnel.
DANGER
Certain initial parts are intentionally not grounded and present a risk of electrical shock only during servicing.
Service personnel - Do not contact the following parts while the appliance is energized;
High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage
Harness;
If provided, Vent Hood, Fan assembly, Cooling Fan Motor.
All the parts marked “*” on parts list are used at voltages more than 250V.
Removal of the outer wrap gives access to voltage above 250V.
All the parts marked “∆” on parts list may cause undue microwave exposure, by themselves, or when they are damaged,
loosened or removed.
SHARP ELECTRONICS CORPORATION
SHARP PLAZA, MAHWAH,
NEW JERSEY 07430-2135
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PRODUCT SPECIFICATION
ITEM
DESCRIPTION
Power Requirements
120 Volts / 14 Amperes
60 Hertz
Single phase, 3 wire grounded
Power Output
1.6 Cubic Feet
1000 watts (IEC-705 TEST PROCEDURE)
Operating frequency of 2450MHz
Width 29-15/16"
Height 16-3/8"
Depth 15- 1/16" (Not including the door handle)
Width 21"
Height 8-7/8"
Depth 14-7/16"
Hood lamp
Hood fan
2 bulbs, 20W x 2, Incandescent light bulbs
Approx. 300 C.F.M.
Control Complement
Touch Control System
Clock ( 1:00 - 12:59 )
Timer (0 - 99 min. 99 seconds)
Microwave Power for Variable Cooking
Repetition Rate;
P-HI .................................................. Full power throughout the cooking time
P-90 .................................................................... approx. 90% of Full Power
P-80 .................................................................... approx. 80% of Full Power
P-70 .................................................................... approx. 70% of Full Power
P-60 .................................................................... approx. 60% of Full Power
P-50 .................................................................... approx. 50% of Full Power
P-40 .................................................................... approx. 40% of Full Power
P-30 .................................................................... approx. 30% of Full Power
P-20 .................................................................... approx. 20% of Full Power
P-10 .................................................................... approx. 10% of Full Power
P-0 .................................................... No power throughout the cooking time
Case Dimensions
Cooking Cavity Dimensions
Sensor Cooking pads, Breakfast Bar pad, Lunch on the Run pad
One Dish Dinners pad, Super Defrost pad, Compu Defrost pad
Beverage Center pad, Number selection pads, Turntable On / Off pad
Memory Cook pad, Power Level pad, Minute Plus pad
Kitchen Timer / Clock pad, Stop / Clear pad, Start / Touch On pad
Work Light pad, Night Light pad, Fan Hi / Lo pad, Auto Fan pad
Oven Cavity Light
Safety Standard
Weight
20W x 1 Incandescent light bulb
UL Listed
FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
Approx. 56 lbs.
4
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GENERAL INFORMATION
GROUNDING INSTRUCTIONS
This oven is equipped with a three prong grounding plug. It must be plugged into a wall receptacle that is properly installed
and grounded in accordance with the National Electrical Code and local codes and ordinances.
In the event of an electrical short circuit, grounding reduces the risk of electric shock by providing an escape wire for the
electric current.
WARNING: Improper use of the grounding plug can result in a risk of electric shock.
Electrical Requirements
The oven is equipped with a 3-prong grounding plug. DO NOT UNDER ANY CIRCUMSTANCES CUT OR REMOVE THE
GROUNDING PIN FROM THE PLUG.
The power supply cord and plug must be connected to a separate 120 Volt AC, 60 Hz, 15 Amp. or more dedicated line, using
a grounded receptacle. The receptacle should be located inside the cabinet directly above the Microwave Oven/Hood
system mounting location.
3-Pronged Plug
Grounded
Receptacle Box
Grounding Pin
3-Pronged Receptacle
CONTROL PANEL
SENSOR DEFROST TURNTABLE OFF COOK HELP
Sensor Cooking
Popcorn
Fresh
vegetables
Ground
meat
Sensor
reheat
Frozen
entrees
Baked
potatoes
Frozen
snacks
Rice
Poultry
Custom
Help
Frozen
vegetables
Fish/
seafood
More from your Microwave
Breakfast
Bar
Super
Defrost
1
6
Lunch on
the Run
Compu
Defrost
2
7
3
8
One Dish
Dinners
Beverage
Center
4
9
5
0
Turntable Memory
Power
Minute
On/Off
Cook
Level
Plus
Kitchen Timer
Stop
START
Clock
Clear
Touch On
Work
Night
Fan
Auto
Light
Light
Hi/Lo
Fan
5
R-1610
R-1611
R-1612
OPERATION
DESCRIPTION OF OPERATING SEQUENCE
any vapor from the oven cavity and sensor.
NOTE: During this first stage, do not open the door or touch
STOP/CLEAR pad.
4. When the sensor detects the vapor emitted from the
food, the display switches over to the remaining cooking
time and the timer counts down to zero.
At this time, the door may be opened to stir food, turn it
or season, etc.
5. When the timer reaches zero, an audible signal sounds.
The shut-off relay and cook relay are de-energized and
the power transformer, oven lamp, etc. are turned off.
6. Opening the door or touching the STOP/CLEAR pad, the
time of day will reappear on the display and the oven will
revert to an OFF condition.
SENSOR COOKING CONDITION
Using the Sensor Cooking function, the foods are cooked or
defrosted without figuring time, power level or quantity.
When the oven senses enough steam from the food, it
relays the information to its microprocessor which will calculate the remaining cooking time and power level needed for
best results.
When the food is cooked, water vapor is developed. The
sensor “senses” the vapor and its resistance increases
gradually. When the resistance reaches the value set according to the menu, supplementary cooking is started.
The time of supplementary cooking is determined by experiment with each food category and inputted into the LSI.
An example of how sensor works (Baked potato):
1. Potatoes at room temperature. Vapor is emitted very
slowly.
MIC
RO
WA
VE
2. Heat potatoes. Moisture and humidity is emitted rapidly.
You can smell the aroma as it cooks.
AH SENSOR
MIC
RO
WA
VE
3. Sensor detects moisture and humidity and calculates
cooking time and variable power.
Cooking Sequence.
1. Touch one of the Sensor Cooking pads. And then touch
START/TOUCH ON pad.
NOTE: The oven should not be operated on Sensor Cooking
immediately after plugging in the unit. Wait two
minutes before cooking on Sensor Cooking.
2. The coil of shut-off relays (RY1 and RY3) are energized,
the oven lamp, turntable motor and cooling fan motor are
turned on, but the power transformer is not turned on.
3. After about 32 seconds, the cook relay (RY2) is energized.
The power transformer is turned on, microwave energy
is produced and first stage is started.
The 32 seconds is the cooling time required to remove
6
R-1610
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MAGNETRON
TEMPERATURE FUSE
CONTROL UNIT
COM.
N.O.
F1
RY4
RY5
High
B3
POWER
TRANSFORMER
F3
N.C.
GRN
B1
Low
HOOD
CAPACITOR
E2
RY3
A3
B9
A7
N.O.
TTM
HOOD
LAMP
HL
A5
HL
FAN
MOTOR
A1
TURNTABLE
MOTOR
HOOD
MOTOR
RY1
FM
DOOR
SENSING
SWITCH
RY2
HIGH VOLTAGE
CAPACITOR
0.94µF
COM.
OL
STIRRER
MOTOR
120 V AC. GND
60 Hz
WHT
F2
E1
OVEN LAMP
HOOD FAN
THERMAL
CUT OUT
SSR
BLK
B5
AH SENSOR
STM
MAGNETRON
B7
PRIMARY
INTERLOCK
RELAY
FUSE
20A
MONITOR
SWITCH
CAVITY
THERMAL CUT-OUT
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. CLOCK APPEARS ON DISPLAY
HIGH VOLTAGE
RECTIFIER
SECONDARY
INTERLOCK
SWITCH
Figure O-1. Oven Schematic-Off Condition
SCHEMATIC
NOTE: CONDITION OF OVEN
1. DOOR CLOSED
2. COOKING TIME PROGRAMMED
3. VARIABLE COOKING CONTROL "HIGH"
4. "START" PAD TOUCHED
MAGNETRON
TEMPERATURE FUSE
CONTROL UNIT
COM.
N.O.
F1
RY4
RY5
High
B3
POWER
TRANSFORMER
F3
N.C.
GRN
B1
Low
HOOD
CAPACITOR
E2
A1
A3
B9
A5
N.O.
TTM
HOOD
LAMP
HL
A7
HL
FAN
MOTOR
HOOD
MOTOR
RY1
FM
DOOR
SENSING
SWITCH
RY2
HIGH VOLTAGE
CAPACITOR
0.94µF
COM.
OL
STIRRER
MOTOR
RY3
OVEN LAMP
120 V AC. GND
60 Hz
WHT
F2
E1
TURNTABLE
MOTOR
HOOD FAN
THERMAL
CUT OUT
SSR
BLK
B5
AH SENSOR
STM
SECONDARY
INTERLOCK
SWITCH
Figure O-2. Oven Schematic-Cooking Condition
7
HIGH VOLTAGE
RECTIFIER
MAGNETRON
B7
PRIMARY
INTERLOCK
RELAY
FUSE
20A
MONITOR
SWITCH
CAVITY
THERMAL CUT-OUT
R-1610
R-1611
R-1612
TROUBLESHOOTING GUIDE
Never touch any part in the circuit with your hand or an uninsulated tool while the power supply is connected.
When troubleshooting the microwave oven, it is helpful to follow the Sequence of Operation in performing the checks. Many
of the possible causes of trouble will require that a specific test be performed. These tests are given a procedure letter which
will be found in the "Test Procedure "section.
IMPORTANT: If the oven becomes inoperative because of a blown monitor fuse, check the monitor switch, relay (RY1)
primary interlock relay (RY2), door sensing switch and secondary interlock switch before replacing the
monitor fuse. If monitor fuse is replaced, the monitor switch must also be replaced. Use part FFS-BA016/
KiT as an assembly.
IMPORTANT: Whenever troubleshooting is performed with the power supply cord disconnected. It may in, some cases,
be necessary to connect the power supply cord after the outer case has been removed, in this event,
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the leads to the primary of the power transformer.
5. Ensure that the leads remain isolated from other components and oven chassis by using insulation tape.
6. After that procedure, reconnect the power supply cord.
Q CK
POSSIBLE CAUSE
AND
DEFECTIVE PARTS
CONDITION
SENSOR
COOKING
CONDITION
PROBLEM
SHORTED OR OPENED WIRING
L
AH SENSOR
TEST PROCEDURE
CONTROL UNIT
When the testing is completed
1. Disconnect the power supply cord, and then remove outer case.
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Reconnect the leads to the primary of the power transformer.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer case is installed.
7. Run the oven and check all functions.
The oven stops and "ERROR" is displayed or does not end during Sensor Cooking
condition. (Oven does not shut off after a cup of water is boiling by Sensor Cooking.)
Oven stops at 32 seconds after starting.
NOTE: For additional troubleshooting procedures, please refer back to the R-1600/1601/1602 base model Service
Manual.
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TEST PROCEDURES
COMPONENT TEST
KEY UNIT TEST
1.
2.
3.
4.
5.
6.
7.
8.
Q
Disconnect the power supply cord, and then remove outer case.
Open the door and block it open.
Discharge high voltage capacitor.
If the display fails to clear when the STOP/CLEAR pad is depressed, first verify the flat ribbon cable
is making good contact, verify that the door sensing switch (stop switch) operates properly; that is the
contacts are closed when the door is closed and open when the door is open. If the door sensing
switch (stop switch) is good, disconnect the flat ribbon cable that connects the key unit to the control
unit and make sure the door sensing switch is closed (either close the door or short the door sensing
switch connecter). Use the Key unit matrix indicated on the control panel schematic and place a
jumper wire between the pins that correspond to the STOP/CLEAR pad making momentary contact.
If the control unit responds by clearing with a beep the key unit is faulty and must be replaced. If the
control unit does not respond, it is faulty and must be replaced. If a specific pad does not respond,
the above method may be used (after clearing the control unit) to determine if the control unit or key
pad is at fault.
Reconnect all leads removed
G8
G7
G6
G5
G4
G3
G2
G1
from components during testing.
Frozen
Frozen
Beverage
5
4
3
2
1
snacks
entrees
center
Re-install the outer case
Fish/
Ground
(cabinet).
Auto
seafood
meat
0
9
8
7
6
Fan
Reconnect the power supply cord
Kitchen
START
Compu
Night
Turntable
Minute
Timer
Poultry
Rice
Defrost
Light
On / Off
Plus
after the outer case is installed.
Touch On
Clock
Run the oven and check all
Stop
Fresh
Sensor
Memory
Work
Power
Fan
Popcorn
vegetables
reheat
Cook
Light
Level
Hi / Lo
Clear
functions.
G14 G13 G12 G11 G10 G 9
PROCEDURE
LETTER
M
One Dish
Dinners
Lunch on
the Run
Custom
Help
Breakfast
Bar
Super
Defrost
Frozen
vegetables
Baked
potatoes
AH SENSOR TEST
Checking the initial sensor cooking condition
WARNING : The oven should be fully assembled before following procedure.
(1) The oven should be plugged in at least two minutes before sensor cooking.
(2) Room temperature should not exceed 95˚F (35˚C).
(3) The unit should not be installed in any area where heat and steam are generated. The unit should
not be installed, for example, next to a conventional surface unit. Refer to the “INSTALLATION
INSTRUCTIONS” of the operation manual.
(4) Exhaust vents are provided on the back of the unit for proper cooling and air flow in the cavity. To
permit adequate ventilation, be sure to install so as not to block these vents. There should be some
space for air circulation.
(5) Be sure the exterior of the cooking container and the interior of the oven are dry. Wipe off any moisture
with a dry cloth or paper towel.
(6) The Sensor works with food at normal storage temperature. For example, chicken pieces would be
at refrigerator temperature and canned soup at room temperature.
(7) Avoid using aerosol sprays or cleaning solvents near the oven while using Sensor settings. The
sensor will detect the vapour given of by the spray and turn off before food is properly cooked.
(8) If the sensor has not detected the vapour of the food, ERROR will appear and the oven will shut off.
Water load cooking test
WARNING : The oven should be fully assembled before following procedure.
Make sure the oven has been plugged in at least two minutes before checking sensor cook operation.
The cabinet should be installed and screws tightened.
(1) Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.
(2) Place the container on the center of tray in the oven cavity.
(3) Close the door.
(4) Touch Sensor reheat pad once and touch the Start pad, Now, the oven is in the sensor cooking
condition and “SENSOR REHEAT” and "COOK" will appear in the display.
(5) The oven will operate for the first 16 seconds, without generating microwave energy.
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TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
NOTE: ERROR will appear if the door is opened or STOP/CLEAR pad is touched during first stage of
sensor cooking.
(6) After approximately 32 seconds, microwave energy is produced, and the display should start to count
down the remaining cooking time and oven should turn off after water is boiling (bubbling).
If the oven does not turn off, replace the AH sensor or check the control unit, refer to explanation below.
TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT
To determine if the sensor is defective, the simplest method is to replace it with a new replacement
sensor.
(1) Disconnect the power supply cord, and then remove outer case.
(2) Open the door and block it open.
(3) Discharge high voltage capacitor.
(4) Remove the AH sensor.
(5) Install the new AH sensor.
(6) Reconnect all leads removed from components during replacing.
(7) Re-install the outer case (cabinet).
(8) Reconnect the power supply cord after the outer case is installed.
(9) Reconnect the oven to the power supply cord and check the sensor cook operation proceed as
follows:
9-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.
9-2. Place the container on the center of tray in the oven cavity.
9-3. Close the door.
9-4. Touch Sensor reheat pad once and touch the Start pad.
9-5. The control panel is in automatic Sensor operation.
9-6. The display will start to count down the remaining cooking time, and the oven will turn off
automatically after the water is boiling (bubbling).
If new sensor dose not operate properly, the problem is with the control unit, and refer to explanation
below.
CHECKING CONTROL UNIT
(1) Disconnect the power supply cord, and then remove outer case.
(2) Open the door and block it open.
(3) Discharge high voltage capacitor.
(4) Disconnect the sensor connector that is mounted to control panel.
(5) Then connect the dummy resistor circuit (see fig.) to the sensor connector of control panel.
(6) Disconnect the leads to the primary of the power transformer.
(7) Ensure that these leads remain isolated from other components and oven chassis by using insulation
tape.
(8) After that procedure, re-connect the supply.
(9) Check the sensor cook operation proceed as follows:
9-1. Touch Sensor reheat pad once and touch the Start pad.
9-2. The control panel is in the sensor cooking operation.
9-3. After approximately 32 seconds, push plunger of select switch for more than 3 seconds. This
condition is same as judgement by AH sensor.
9-4. After approximately 3 seconds, the display shows “ X X . X X “ which is the remaining cooking
time, and the display count down.
If the above is not the case, the control unit is probably defective.
If the above is proper, the AH sensor is probably defective.
(10) Disconnect the power supply cord, and then remove outer case.
(11) Open the door and block it open.
(12) Discharge high voltage capacitor.
(13) Disconnect the dummy resistor circuit from the sensor connector of control panel.
(14) Carry out necessary repair.
(15) Reconnect all leads removed from components during testing and repairing.
(16) Re-install the outer case (cabinet).
(17) Reconnect the power supply cord after the outer case installed. Run the oven and check all function.
10
R-1610
R-1611
R-1612
TEST PROCEDURES
PROCEDURE
LETTER
COMPONENT TEST
(18) Carry out “Water load cooking test” again and ensure that the oven works properly.
Plunger
R1, R2 : 22Ω ± 1% 1/2W
R3 : 4.3kΩ ± 5% 1/4W
R4 : 1MΩ ± 5% 1/4W
F-1
F-2
To connector (F)
on Control Unit.
1
2
3
NC
NO
COM
COM NO
R1
F-3
R2
CONNECTOR
R3
R4
NC
Sensor Dummy Resistor Circuit
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
3) Synchronizing Signal Circuit
The power source synchronizing signal is available in
order to compose a basic standard time in the clock
circuit. It incorporates a very small error because it works
on commercial frequency.
The touch control section consists of the following units
as shown in the touch control panel circuit.
(1) Key Unit
(2) Control Unit (The Control unit consists of LSI Unit and
Power U nit)
4) ACL Circuit
A circuit to generate a signals which resetting the LSI to
the initial state when power is applied.
The principal functions of these units and the signals communicated among them are explained below.
Key Unit
The key unit is composed of a matrix, signals generated in
the LSI are sent to the key unit through P10-P17.
When a key pad is touched, a signal is completed through
the key unit and passed back to the LSI through P41, P42,
AN8, AN9, AN10 and AN11 to perform the function that was
requested.
5) Buzzer Circuit
The buzzer is responds to signals from the LSI to emit
audible sounds (key touch sound and completion sound).
6) Door Sensing Switch
A switch to inform the LSI if the door is open or closed.
Control Unit
Control unit consists of LSI, power source circuit, synchronizing signal circuit, ACL circuit, buzzer circuit, relay circuit,
absolute humidity sensor, indicator circuit and back light circuit.
7) Relay Circuit
To drive the magnetron, fan motor, stirrer motor, turntable motor, hood motor, and light the oven lamp and hood
lamp.
1) LSI
This LSI controls the key strobe signal, relay driving
signal for oven function and indicator signal.
8) Indicator Circuit
This circuit consists of 40 segments and 16 common
electrodes using a Light Crystal Display.
The Light Crystal Display (LCD) is drived by LCD driver
IC3.
2) Power Source Circuit
This circuit generates voltages necessary for the control
unit from the AC line voltage.
In addition, the synchronizing signal is available in order
to compose a basic standard time in the clock circuit.
Symbol
Voltage
Application
VC
-5.1V
LSI(IC1)
9) Back Light Circuit
A circuit to drive the back light (Light emitting diodes LD1LD10).
10) Absolute Humidity Sensor Circuit
This circuit detects moisture of the cooking food to allow
its automatic cooking.
11
R-1610
R-1611
R-1612
DESCRIPTION OF LSI
LSI(IZA958DR)
The I/O signal of the LSI(IZA958DR) is detailed in the following table.
Pin No.
Signal
I/O
Description
NOTE: For additional informations of LSI, please refer back to the R-1600/1601/
1602 base model Service Manual.
1
AN10
IN
Signal coming from touch key.
When either G10 line on key matrix is touched, a corresponding signal out of P10-P17 will
be input into AN10. When no key is touched, the signal is held at "H" level.
9
P15
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN9, AN10, AN11, P41 and
P42 terminal while one of G3 line keys on key matrix is touched.
10
P16
OUT
11
P17
OUT
P32
P33-P37
OUT
OUT
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN8, AN9, AN10, AN11, P41
and P42 terminal while one of G2 line keys on key matrix is touched.
Key strobe signal.
Signal applied to touch-key section. A pulse signal is input to AN9, AN10, AN11, P41 and
P42 terminal while one of G1 line keys on key matrix is touched.
Terminal not used.
Used for initial balancing of the bridge circuit (absokute humidity sensor).
91
AN0
IN
Used for initial balancing of the bridge circuit (absokute humidity sensor). This input is an
analog input terminal from the AH sensor circuit, and connected to the A/D converter built
into the LSI.
92
AN1
IN
AH sensor input.
This input is an analog input terminal from the AH sensor circuit, and connected to the A/
D converter built into the LSI.
99
AN8
IN
Input terminal to judge the model.
The signal out of P16 will be input into AN8 through G2 line on key matrix. The LSI will judge
the model by this signal.
29
30-34
12
R-1610
R-1611
R-1612
ABSOLUTE HUMIDITY SENSOR CIRCUIT
(1) Structure of Absolute Humidity Sensor
The absolute humidity sensor includes two thermistors
as shown in the illustration. One thermistor is housed in
the closed vessel filled with dry air while another in the
open vessel. Each sensor is provided with the protective
cover made of metal mesh to be protected from the
external airflow.
balance the bridge circuit is deviated to increase the
voltage available at AN1 terminal of the LSI.
Then the LSI observes that voltage at AN1 terminal and
compares it with its initial value, and when the comparison
rate reaches the preset value (fixed for each menu to be
cooked), the LSI causes the unit to stop sensor cooking;
thereafter, the unit goes in the next operation
automatically.
When the LSI starts to detect the initial voltage at AN1
terminal 16 seconds after the unit has been put in the
Sensor Cooking mode, if it is not possible to balance, of
the bridge circuit due to disconnection of the absolute
humidity sensor, ERROR will appear on the display and
the cooking is stopped.
Thermistors
Sensing part
(Closed vessel)
1) Absolute humidity sensor circuit
R3
R1
S
R2
Operational
amplifier
Output
voltage
+
S : Thermistor
open vessel
C : Thermistor
closed vessel
C. Thermistor in
closed vessel
S. Thermistor in
open vessel
30
R99
300k
31
R100
150k
32
R101
75k
33
R102
37.4k
34
R97
S
Absolute humidity vs,
output voltage characteristic
VA : -15V
Absolute humidity (g/m 2 )
(3) Detector Circuit of Absolute Humidity Sensor Circuit
This detector circuit is used to detect the output voltage of
the absolute humidity circuit to allow the LSI to control
sensor cooking of the unit. When the unit is set in the
sensor cooking mode, 16 seconds clearing cycle occurs
than the detector circuit starts to function and the LSI
observes the initial voltage available at its AN1 terminal.
With this voltage given, the switches SW1 to SW5 in the
LSI are turned on in such a way as to change the
resistance values in parallel with R98 ~ R102 of IC2.
Changing the resistance values results in that there is the
same potential at both F-3 terminal of the absolute humidity
sensor and AN0 terminal of the LSI. The voltage of AN1
terminal will indicate about -2.5V. This initial balancing is
set up about 16 seconds after the unit is put in the Sensor
Cooking mode. As the sensor cooking proceeds, the food
is heated to generate moisture by which the resistance
13
VA : -15V
SW1
P33
P34
P35
P36
P37
0.01uF
R95
47k
D90
VC : -5V
SW2
SW3
SW4
SW5
AN0
LSI
(IC1)
C92
0.01uF
R93
360k
R94
10k
R90
F-2
R91
3.32k R92
1.8k
+
IC2
0.015uF
F-1
C
R96
F-3
3.57k
91
C93
47k
Output voltage
C
620k
R98
C91
(2) Operational Principle of Absolute Humidity Sensor
The figure below shows the basic structure of an absolute
humidity sensor. A bridge circuit is formed by two
thermistors and two resistors (R1 and R2).
The output of the bridge circuit is to be amplified by the
operational amplifier.
Each thermistor is supplied with a current to keep it
heated at about 150˚C (302˚F), the resultant heat is
dissipated in the air and if the two thermistors are placed
in different humidity conditions they show different
degrees of heat conductivity leading to a potential
difference between them causing an output voltage from
the bridge circuit, the intensity of which is increased as
the absolute humidity of the air increases. Since the
output is very minute, it is amplified by the operational
amplifier.
0.1
uF
Sensing part
(Open vessel)
C90
ventilation opening for sensing
92
AN1
R-1610
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R-1612
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
WARNING AGAINST HIGH VOLTAGE:
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may
result in severe, possibly fatal, electric shock.
(Example)
High Voltage Capacitor, Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..
WARNING:
Avoid possible exposure to microwave energy. Please follow the instructions below before
operating the oven.
1. Disconnect the power supply cord.
2. Visually check the door and cavity face plate for damage
(dents, cracks, signs of arcing etc.).
4. The door is bent or warped.
5. There are defective parts in the door interlock system.
6. There are defective parts in the microwave generating
and transmission assembly.
7. There is visible damage to the oven.
Carry out any remedial work that is necessary before
operating the oven.
Do not operate the oven if any of the following conditions
exist;
1. Door does not close firmly.
2. Door hinge, support or latch hook is damaged.
3. The door gasket or seal is damaged.
Do not operate the oven:
1. Without the RF gasket (Magnetron).
2. If the wave guide or oven cavity are not intact.
3. If the door is not closed.
4. If the outer case (cabinet) is not fitted.
WARNING FOR WIRING
To prevent an electric shock, take the following precautions.
1. Before wiring,
1) Disconnect the power supply cord.
2) Open the door block it open.
3) Discharge the high voltage capacitor and wait for 60
seconds.
2. Don’t let the wire leads touch to the followiong parts;
1) High voltage parts:
Magnetron, High voltage transformer, High voltage
capacitor and High voltage rectifier assembly.
2) Hot parts:
Oven lamp, Magnetron, High voltage transformer
and Oven cavity.
3) Sharp edge:
Bottom plate, Oven cavity, Waveguide flange,
Chassis support and other metallic plate.
4) Movable parts (to prevent a fault)
Fan blade, Fan motor, Switch, Switch lever, Open
button.
3. Do not catch the wire leads in the outer case cabinet.
4. Insert the positive lock connector until its pin is locked
and make sure that the wire leads do not come off even
if the wire leads are pulled.
5. To prevent an error function, connect the wire leads
correctly, referring to the Pictorial Diagram.
Please refer to ‘OVEN PARTS, CABINET PARTS, CONTROL PANAL PARTS, DOOR PARTS’, when carrying out any of
the following removal procedures:
HOOD FAN MOTOR, HOOD DUCT, OVEN LAMP SOCKET AND AH. SENSOR REMOVAL
1. Disconnect the power supply cord and remove the oven
from wall and remove outer case. (Refer to procedure of
"Removal of Oven from Wall" and "Outer case Removal"
of the base model Service Manual)
2. Open the door and block it open.
3. Discharge high voltage capacitor.
4. Disconnect the 6-pin connector of the hood fan motor
from the main wire harness located at the right edge of the
hood duct and release the snap band from the hood duct.
5. Remove the hood fan motor from the hood duct by lifting
it up.
6. Now, the hood fan motor is free.
7. Disconnect the connector CN-F from the control unit.
8. Remove one (1) screw holding the hood duct to the oven
cavity front plate.
9. Release the 6-pin connector and the 3-pin connector of
the main harness A from the hood duct.
10.Disconnect the wire leads from the fan motor and chassis
support, and release the wire leads from holes of the
hood duct.
11.Remove the two (2) unit mounting screws from the
chassis support (right side) and the hood duct (left side).
12.Remove the one (1) screw holding the chassis support.
13.Remove the chassis support.
14
R-1610
R-1611
R-1612
14.Remove the hood duct from the oven cavity by lifting it up.
15.Screw the oven lamp off from the lamp socket.
16.Remove the lamp socket from the lamp angle.
17.Pull the wire leads from the oven lamp socket by pushing
the terminal hole of the oven lamp socket with a small flat
type screw driver.
18.Now, the oven lamp socket is free.
19.Release the harness of the AH sensor assembly from
three (3) wire holders of the hood duct.
20.Remove two (2) screws holding the AH sensor assembly
to the hood duct.
21.Now, the AH sensor assembly is free.
15
1
2
3
16
CN-C
N.O.
N.O.
COM.
RY1
RY3
7
CN-A
T1
1
1
4
RY2
COM.
5
ORG
ORG
RED
BLK
RED
ORG
RED
1 RED
YLW
BLK
WHT
CN-A
2
5
4
3
6
7
N.C.
BLK
RED
N.O.
COM.
WHT
WHT
BLK
GRY
GRY
WHT
WHT
FUSE & HOLDER
SECONDARY
INTERLOCK
SWITCH
COM.
MONITOR
SWITCH
BLK
F
RY2
N.O.
RY1
COM.
RY1
N.O.
C100
BLK
ORG
1 WHT
2
5
4
3
6
G
R
Y
WHT
WHT
BLU
TURNTABLE
MOTOR
WHT
ORG
WHT
RED
MAGNETRON
TEMPERATURE
FUSE
RED
OVEN LAMP & SOCKET
Blue Marking
HOOD LAMPS
& SOCKETS
6
ORG
ORG
GRY
WHT
W W
H H
T T
MAGNETRON
R
E
D
ORG
RED
RED
HIGH
VOLTAGE
RECTIFIER
HOOD FAN
THERMAL
CUT-OUT
POWER
TRANSFORMER
HIGH VOLTAGE
WIRE A
HIGH VOLTAGE
CAPACITOR
HIGH VOLTAGE COMPONENTS
WHT
RED
STIRRER MOTOR
WHT
RED
ORG
5
BLK
FAN
MOTOR
RED
WHT
RED
CAVITY
THERMAL
CUT-OUT
WHT
BLK
Blue
Marking
Power Supply
cord 120V 60Hz
4
to Right Base Plate
3
RED
8
7
WHT
DOOR SENSING SWITCH
GRN
RED
1 BLU
3 BLK
3
Figure S-1. Pictorial Diagram
RY2
RY2: PRIMARY
INTERLOCK
RELAY
RY4
CN-B COM.
1
9
2
CN-C
ORG
CN-B
9
COM.
N.O.
BLU
BLK
WHT 2 WHT
GRN 1 GRN
2
CN-E
1
1 CN-G14
CN-F
CONTROL UNIT
H
GRN
E
IC3
G
1 RED
CN-E
2 GRN
GRN
D
RED 5 RED
YLW 4 YLW
WHT 3 WHT
BLK 2 BLK
B
IC1
AH SENSOR
A
to Chassis Support
CN-F
1 BLK
2 RED
3 WHT
C
HOOD FAN MOTOR
1
RY5
6
R-1610
R-1611
R-1612
6
A
B
C
D
E
F
G
H
R-1610
R-1611
R-1612
2
1
4
3
6
5
A
A
Q2
2SB1238
R4 27
B
D3
D2
d
a
b
C
+
–
LED
C2
GND
C3
VC
C1
VA
C9
VR
C4
INT
C11
TURNTABLE
MOTOR
C5
BUZZER
C12
HOOD LAMP
B
+
–
R3
510 1/2w
Q1
2SB1238
(J1)
C4 10µ/35v
5
D1
C3 0.1µ/50v
1
D4
ZD1
HZ16-1
8
R1
2.4k
3
C10
R5 4.7k
C2 1000µ/35v
VRS1
10G471K
AC
C1 0.1µ/50v
D1-4
11ES1
T1
A7
D6
D5
C
R2 680 1/2w
c
A3
E
OVEN LAMP
FAN MOTOR
B9
NO
COM
COM
LOW
B1
HOOD MOTOR
HIGH
B3
SSR1
COM
B7
MICRO
NO
RY5
C13
+
–
C6
C5
10µ/35v
C8
F
RY4
D24
B5
E
Q3
KRC243M
RY2
D22
HOOD
THEMO
HOOD MOTOR
HIGH / LOW
OVEN LAMP
FAN MOTOR
TURNTABLE
MOTOR
HOOD MOTOR
COM
F
A
COM
E2
E1
C7
MICRO
C14
N.C.
C15
DOOR
SENSING
SWITCH
NOTE
G
D
R6 3.3k
R20 1k 1/2w
C110
0.033µ/250v
RY1
COM
SP1
PKM22EPT
D23
A
HOOD LAMP
RY3
A5
D21
TURNTABLE
MOTOR
C100
7µ/230v
D25
D
A1
R110
47 1/2w
MOTOR RUN
CAPACITOR
G
: IF NOT SPECIFIED 1SS270A
: IF NOT SPECIFIED 1/4W ± 5%
DOOR SENSING
SWITCH
H
H
Figure S-2. Power Unit Circuit
1
2
4
3
17
5
6
C-12
HOOD LAMP
C-7
MICRO
4
NC
LD9
LD8
LD3
D41 1SS355
D20 1SS355
LD2
C12
0.1µ
/50v
Q23
DTA143EKA
R12
15k
Q22
DTA143EKA
Q21
DTA123JKA
F-1
F-2
AH SENSOR
F
C20 0.1µ/50v
Q20
DTA143EKA
Q30
DTA143EKA
H
I
R90 330 1w
Q24
DTA143EKA
Q25
DTA143EKA
C90
0.1µ/50v
F-3
C13
0.01µ
/25v
C10 47µ/16v
LD7 LD6 LD5 LD4
R10
1k
ZD10
UDZ4.3B
G
R92
1.8kF
6
5
4
8
+
IC2
E
D
R93
360kF
7
B
R41 15k
A
5
R73 15k
R72 15k
R71 15k
R70 15k
R69 15k
(J10)
R97
47k
R95
47k
D
R68 15k
C
R94
10k
C17 0.1µ/50v
1
7
Turntable
On / Off
Power
Level
Breakfast
Bar
8
Kitchen
Timer
Clock
Work
Light
Custom
Help
9
Night
Light
Stop
Clear
Lunch on
the Run
0
Compu
Defrost
Memory
Cook
One Dish
Dinners
KEY UNIT
2
3
4
5
G5
G6
100
IC1
IZA958DR
G7
G8
80
SEG36
SEG37
SEG38
SEG39
SEG40
P40
P41
P42
IRQ0
AVCC
AN0
AN1
AN2
AN3
AN4
AN5
AN6
AN7
AN8
AN9
81
See Figure S-4.
FG H I
50
30
CF1 CST4.00MGW
31
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
VCC
V0
V1
V2
V3
VSS
CVCC
P37
P36
P35
P34
51
G2
Frozen
entrees
Ground
meat
Rice
Sensor
reheat
Baked
potatoes
G3
Frozen
snacks
Fish/
seafood
Poultry
Fresh
vegetables
Frozen
vegetables
G4
1
6
START
Touch On
Fan
Hi / Lo
Super
Defrost
A
E
D
C
B
GND
Popcorn
Minute
Plus
Auto
Fan
Beverage
center
G1
4
5
6
C63 330p/50v
C65 330p/50v
(J12)
Figure S-3. LSI Unit Circuit
IC2
BA4558
D90 MA152WA
C
: IF NOT SPECIFIED, 1/10W ± 5%
LD10
LD1
A
NOTE
C-14
HOOD MOTOR
C-8
COM
C-15
C-6
OVEN LAMP
FAN MOTOR
DOOR
C-5
BUZZER
HOOD MOTOR
C-13
H/L
C-1
C-11
TURNTABLE
MOTOR
VA
C-9
C-10
VR
LED
C-3
R102 37.5kF
R96 3.57kD
R91 3.32kD
Q10
2SA1037AK
R99 300kF
VC
–
C91
0.015µ/25v
R101 75kF
C14
0.01µ
/25v
R11
15k
R100 150kF
R40 4.7k
R79 270k
Q11
DTA143EKA
R78 270k
+
R98 620kF
R77 270k
CPU UNIT
R76 270k
C-2
R75 270k
(J11) 4.7K
C40
0.01µ/25v
(J13) 4.7K
C92
0.01µ/25v
R74 270k
(J14)
(J15) 4.7K
C64 330p/50v
(J16)
(J17) 4.7K
C62 330p/50v
C-4
C93
0.01µ/25v
C110
4.7k
C60 330p/50v
GND
R66
15k
18
R65
15k
3
R64
15k
G
R63
15k
2
SEG35
P91
P90
P87
P86
P85
P84
P83
P82
P81
P80
P77
P76
P75
P74
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
1
AN10
AN11
AVSS
P10
P11
P12
P13
P14
P15
P16
P17
X1
X2
VSS
OSC2
OSC1
TEST
RES
P20
P21
P22
P23
P24
P25
P26
P27
P30
P31
P32
P33
H
R67
15k
B
R80
1M
E
3
R62
15k
F
2
R61
15k
1
R60
15k
INT
R-1610
R-1611
R-1612
6
A
B
C
D
E
F
G
H
G14 G13 G12 G11 G10 G 9
C61 330p/50v
2
3
19
4
H
NOTE
IC1 P74
IC1 P75
R127 4.7 k
R126 4.7 k
R125 4.7 k
R124 4.7 k
R123 4.7 k
R122 4.7 k
R121 4.7 k
R120 4.7 k
: IF NOT SPECIFIED, 1/10W ± 5%
R133
510k
R132
33k
25
C123 0.1µ/50v
C122 0.1µ/50v
C121 0.1µ/50v
C120 0.1µ/50v
50
51
VDD
NC
NC
RESET
TEST
VREF
R03
R02
R01
R00
P13
P12
P11
P10
P03
P02
P01
P00
K03
K02
K01
K00
NC
NC
NC
26
C126 0.1µ/50v
OSC4
OSC3
VD1
OSC2
OSC1
VSS
BZ
COM0
COM1
COM2
COM3
COM4
COM5
COM6
COM7
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
SEG8
SEG9
IC3
IZA951DR
75
76
LIQUID CRYSTAL DISPLAY
4
5
5
Figure S-4. Indicator Circuit
100
SEG10
SEG11
SEG12
SEG13
SEG14
SEG15
SEG16
SEG17
SEG18
SEG19
SEG20
SEG21
SEG22
SEG23
SEG24
SEG25
SEG26
SEG27
SEG28
SEG29
SEG30
SEG31
SEG32
SEG33
SEG34
1
SENSOR DEFROST TURNTABLE OFF COOK HELP
IC1 P76
IC1 P77
IC1 P80
IC1 P81
IC1 P82
IC1 P83
IC1 P84
IC1 P85
G
IC1 P86
IC1 P87
IC1 P90
IC1 P91
GND
R134 15k
R129 4.7 k
E
C124 0.1µ/50v
R131 4.7 k
D
C125
0.1µ/50v
VC
A
C127
0.1µ/50v
F
3
C128
0.1µ/50v
1
2
C129
0.1µ/50v
1
VC1
VC2
VC3
VC4
VC5
CF
CE
CD
CC
CB
CA
COM8
COM9
COM10
COM11
COM12
COM13
COM14
COM15
COM16
SEG39
SEG38
SEG37
SEG36
SEG35
B
COM16
COM15
COM14
COM13
COM12
COM11
COM10
COM9
SEG40
SEG39
SEG38
SEG37
SEG36
SEG35
SEG34
SEG33
SEG32
SEG31
SEG30
SEG29
SEG28
SEG27
SEG26
SEG25
SEG24
SEG23
SEG22
SEG21
SEG20
SEG19
SEG18
SEG17
SEG16
SEG15
SEG14
SEG13
SEG12
SEG11
SEG10
SEG9
SEG8
SEG7
SEG6
SEG5
SEG4
SEG3
SEG2
SEG1
COM1
COM2
COM3
COM4
COM5
COM6
COM7
COM8
R-1610
R-1611
R-1612
6
A
B
C
C
6
D
E
F
G
H
R130 4.7 k
R128 4.7 k
R-1610
R-1611
R-1612
PARTS LIST
Note: The parts marked “ ∆” may cause undue microwave exposure.
The parts marked “*” are used in voltage more than 250V.
REF. NO.
"§" MARK: PARTS DELIVERY SECTION
PART NO.
§
DESCRIPTION
1- 1
1- 2
1- 3
1- 4
1- 5
1- 6
1- 7
1- 8
1- 9
1-10
1-11
1-12
1-13
1-14
1-15
1-16
1-17
1-18
FH-DZB012MRY0
RC-QZA234WRE0
QFS-TA013WRE0
RMOTDA211WRE0
RMOTDA214WRE0
RTHM-B005MRE0
RTRN-B062MRE0
RV-MZA281WRE0
QFSHDB003MRE0
QSW-MA110WRE0
FFS-BA016/KIT
FACCDB011MRE0
QSOCLB006MRE0
FMOTEA366WRK0
RMOTEA346WRE0
RLMPTA068WRE0
RTHM-A070WRE0
FDTCTA201WRK0
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
High voltage rectifier assembly
High voltage capacitor
Temperature fuse 150˚C (Magnetron)
Turntable motor
Stirrer motor
Thermal cut-out N.O. 60˚C (Hood Fan)
Power transformer
Magnetron
Fuse holder
Secondary interlock and door sensing switches
Monitor switch with fuse assembly
Power supply cord
Oven lamp socket
Hood fan motor
Fan motor
Oven lamp
Thermal cut-out 145˚C (Cavity)
AH sensor
2- 1
2- 2
2- 2
2- 2
2- 3
2- 4
2- 5
2- 5
2- 5
2- 6
2- 7
2- 7
2- 7
2-7-1
2-7-1
2-7-1
2-7-2
2- 8
2- 8
2- 8
LSTY-B021MRP0
PDIF-B018MRF0
PDIF-B019MRF0
PDIF-B020MRF0
GDAI-B055MRP0
PCUSUB040MRP0
GCABUB084MRP0
GCABUB090MRP0
GCABUB086MRP0
TMAPCB052MRR0
FANGKB009MRY0
FANGKB010MRY0
FANGKB011MRY0
LANGQB016MRP0
LANGQB020MRP0
LANGQB027MRP0
PGLSPB004MRE0
PCOVPB064MRT0
PCOVPB066MRT0
PCOVPB067MRT0
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
Rear stay
Hood exhaust louver [R-1610]
Hood exhaust louver [R-1611]
Hood exhaust louver [R-1612]
Right base plate
Base cover cushion
Outer case cabinet [R-1610]
Outer case cabinet [R-1611]
Outer case cabinet [R-1612]
Schematic diagram
Hood lamp glass assembly [R-1610]
Hood lamp glass assembly [R-1611]
Hood lamp glass assembly [R-1612]
Hood lamp glass angle [R-1610]
Hood lamp glass angle [R-1611]
Hood lamp glass angle [R-1612]
Hood lamp glass
Base cover [R-1610]
Base cover [R-1611]
Base cover [R-1612]
Q'TY CODE
ELECTRIC PARTS
*
*
*
∆*
1
1
1
1
1
1
1
1
1
2
1
1
3
1
1
3
1
1
AK
AP
AG
AL
AQ
AG
BF
BC
AD
AE
AF
AP
AE
BE
AR
AE
AG
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
AF
AT
AT
AT
AM
AA
BA
BC
BC
AB
AN
AM
AM
AG
AG
AG
AH
AY
AY
AY
1
1
1
1
1
1
1
1
2
1
1
4
2
5
2
1
1
1
1
1
1
1
1
1
AA
AA
AB
AU
AB
AF
AB
AB
AK
AC
AB
AA
AA
AA
AB
AA
AA
AB
AB
AA
AA
AA
AH
CABINET PARTS
CONTROL PANEL PARTS
3- 1
3- 1A
3- 1B
3- 1C
3- 1D
C1
C2
C3
C4-5
C100
C110
D1-4
D5-6
D21-25
Q1-2
Q3
R1
R2
R3
R4
R5
R6
R20
R110
CPWBFB037MRU0
QCNCMA447DRE0
QCNCMA448DRE0
QCNCMA275DRE0
FW-VZA253DRE0
RC-KZA087DRE0
VCEAB31VW108M
RC-KZA087DRE0
VCEAB31VW106M
RC-QZB014MRE0
RC-QZB019MRE0
VHD11ES1///-1
VHD1SS270A/-1
VHD1SS270A/-1
VS2SB1238//-3
VSKRC243M//-3
VRD-B12EF242J
VRD-B12HF681J
VRD-B12HF511J
VRD-B12EF270J
VRD-B12EF472J
VRD-B12EF332J
VRD-B12HF102J
VRS-A12HA470J
M
M
M
J
M
J
J
J
J
M
M
J
J
J
J
J
J
J
J
J
J
J
J
J
Control unit
4-pin connector CN-A
5-pin connector CN-B
2-pin connector CN-E
Lead wire harness CN-C
Capacitor
0.1 uF
50V
Capacitor
1000 uF
35V
Capacitor
0.1 uF
50V
Capacitor
10 uF
35V
Capacitor
7 uF
230V
Capacitor
0.033 uF
250V
Diode (11ES1)
Diode (1SS270A)
Diode (1SS270A)
Transistor (2SB1238)
Transistor (KRC243M)
Resistor
2.4k ohm
1/4W
Resistor
680 ohm
1/2W
Resistor
510 ohm
1/2W
Resistor
27 ohm
1/4W
Resistor
4.7k ohm
1/4W
Resistor
3.3k ohm
1/4W
Resistor
1k ohm
1/2W
Resistor
47 ohm
1/2W
20
R-1610
R-1611
R-1612
REF. NO.
RY1-2
RY3-4
RY5
SSR1
SP1
T1
VRS1
ZD1
3- 2
3- 2
3- 2
3- 2-1
3- 2-1
3- 2-1
3- 2-2
3- 2-2
3- 2-2
3- 2-3
3- 3
3- 4
3- 5
PART NO.
RRLY-A113DRE0
RRLY-B004MRE0
RRLY-A112DRE0
RTR--A001DRE0
RALM-A014DRE0
RTRNPB017MRE0
RH-VZA032DRE0
VHEHZ161///-1
FPNLCB263MRK0
FPNLCB264MRK0
FPNLCB265MRK0
FUNTKB213MRE0
FUNTKB214MRE0
FUNTKB215MRE0
GMADIB033MRF0
GMADIB033MRF0
GMADIB034MRR0
XEPSD30P10XS0
LHLD-B011MRF0
PSHEPB027MRE0
XEPSD30P10XS0
§
M
M
M
M
J
M
J
J
M
M
M
M
M
M
M
M
M
M
M
M
M
DESCRIPTION
Relay (DU24D1-1PR(M))
Relay (FTR-F3AA024E)
Relay (VE24HSE-K)
Solid state relay
Buzzer (PKM22EPT)
Transformer
Varistor (10G471K)
Zener diode (HZ-161)
Control panel sub. assembly [R-1610]
Control panel sub, assembly [R-1611]
Control panel sub, assembly [R-1612]
Key unit [R-1610]
Key unit [R-1611]
Key unit [R-1612]
Display window [R-1611]
Display window [R-1612]
Display window [R-1610]
Screw; 3mm x 10mm
LCD holder
LED sheet
Screw; 3mm x 10mm
4- 1
4- 2
4- 3
4- 4
4- 5
4- 6
4- 7
4- 8
4- 9
4-10
4-11
4-12
4-13
4-14
4-15
4-16
4-17
4-18
4-19
4-20
4-21
4-22
4-23
4-24
4-25
FFTA-B003MRK0
FROLPB025MRK0
NTNT-A090WRE0
LANGKB010MRP0
FCOVPB016MRK0
FFAN-B010MRK0
*************
PPACGB014MRF0
PHOK-B017MRF0
LANGTB036MRP0
NFANPB001MRE0
LBSHC0037WRE0
PCOVPB065MRP0
PDUC-B095MRP0
PCUSUB039MRP0
PFILWB005MRP0
LANGTB046MRP0
LANGTB040MRP0
PDUC-B094MRF0
LHLD-B012MRF0
LSTPPB031MRF0
PCOVPB076MRF0
PCOVPB077MRF0
PCOVPB078MRF0
PDUC-B098MRP0
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
Exhaust damper assembly
Turntable support assembly
Turntable tray
Capacitor holder
Stirrer cover assembly
Stirrer fan assembly
Oven cavity (Not replaceable part)
Turntable motor packing
Latch hook
Unit mounting plate
Fan blade
Cord bushing
Oven lamp cover
Hood intake duct R
Hood intake duct cushion
Lamp filter
Chassis support left
Chassis support right
Hood duct
Rack holder
Door stopper
Louver cover A [R-1610]
Louver cover B [R-1610]
Louver cover C [R-1610]
Magnetron air guide
5- 1
5- 2
5- 2
5- 2
5-2-1
5-2-1
5-2-1
5-2-2
5-2-3
5-2-4
5-2-5
5-2-5
5-2-5
5- 3
5- 4
5- 5
5- 5
5- 5
5- 6
5- 7
FDORFB060MRT0
FCOV-B146MRK0
FCOV-B145MRK0
FCOV-B147MRK0
PGLSPB012MRE0
PGLSPB014MRR0
PGLSPB013MRR0
LSTPPB030MRF0
LSTPPB032MRF0
MSPRTA046WRE0
GWAKPB105MRR0
GWAKPB104MRR0
GWAKPB106MRR0
FCOVHB005MRK0
PSHEPB024MRE0
FHNDPB002MRK0
FHNDPB001MRK0
FHNDPB003MRK0
XCPSD40P08000
XCPSD40P12000
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
Door panel assembly
Door frame assembly [R-1610]
Door frame assembly [R-1611]
Door frame assembly [R-1612]
Front door glass [R-1610]
Front door glass [R-1611]
Front door glass [R-1612]
Latch head
Glass stopper
Latch spring
Door frame [R-1610]
Door frame [R-1611]
Door frame [R-1612]
Choke cover assembly
Sealer film
Door handle assembly [R-1610]
Door handle assembly [R-1611]
Door handle assembly [R-1612]
Screw : 4mm x 8mm
Screw : 4mm x 12mm
Q'TY CODE
2
AG
2
AG
1
AH
1
AG
1
AG
1
BE
1
AE
1
AA
1
1
1
1
1
1
1
AK
1
AK
1
AK
1
AB
1
AD
1
AF
2
AB
OVEN PARTS
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
∆
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
1
1
1
1
1
AH
AN
AN
BB
AN
AH
-AA
AG
AP
AC
AB
AD
AM
AA
AB
AD
AE
AL
AF
AC
AG
AG
AG
AC
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
4
2
AX
BD
BD
BC
AQ
AQ
AQ
AC
AC
AB
AZ
AZ
AV
AH
AF
AL
AL
AL
AA
AA
DOOR PARTS
21
R-1610
R-1611
R-1612
REF. NO.
PART NO.
§
DESCRIPTION
Q'TY CODE
MISCELLANEOUS
*
6- 1
6-1-1
6-1-2
6-1-3
6-1-4
6-1-5
6-1-6
6-1-7
6- 2
6- 3
6- 4
6- 5
6- 6
6- 7
6- 8
6- 9
6-10
6-11
6-12
6-13
6-14
6-15
6-16
6-17
CFZK-B131MRK0
LBSHC0040MRE0
LX-BZ0195WRE0
LX-MZB001MRE0
XBRSD50P60000
XOTSD40P12000
XTSSD50P35000
XWHSD50-16300
TINSEB177MRR0
TINSEB210MRR0
TINSKB047MRR0
TINSKB048MRR0
QW-QZB023MRE0
FW-VZB145MRE0
TCAUAA025WRR0
TCAUAB037MRR0
TCAUAB005MRR0
FW-VZB149MRE0
PFIL-B004MRE0
PFIL-B002MRE0
PCLICB003MRE0
UAMI-B009MRM0
TLAB-B039MRR0
QW-VZB009MRE0
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
M
Installation material assembly
Grommet
Toggle screw
Cord holder
Screw : 5mm x 60mm
Screw : 4mm x 12mm
Screw : 5mm x 35mm
Washer
Installation instruction
Operation manual
Top template
Wall template
High voltage wire A
Main harness
A
Caution label
Monitor caution label
DHHS caution label
Stop switch harness
Chacoal filter
Grease filter
Canoe clip
Rack
Menu label
Sensor ground wire
7- 1
7- 2
7- 2
7- 2
7- 3
7- 4
7- 5
7- 6
7- 7
7- 8
7- 9
7-10
7-11
XCPSD40P08000
XOTSF40P12000
XOTSE40P12000
XOTSD40P12000
XOTSD40P12000
XBTSD40P08000
LX-CZA038WRE0
LX-CZ0052WRE0
LX-BZ0081YBE0
XCPSD30P08000
LX-BZB012MRE0
XCBSD30P08000
LX-BZA041WRE0
M
M
M
M
M
M
M
M
M
M
M
M
M
Screw : 4mm x
Screw : 4mm x
Screw : 4mm x
Screw : 4mm x
Screw : 4mm x
Screw : 4mm x
Special screw
Special screw
Screw : 4mm x
Screw : 3mm x
Unit mounting
Screw : 3mm x
Special screw
1
1
4
1
2
1
6
2
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
AM
AC
AC
AB
AC
AA
AA
AA
AB
AD
AC
AB
AD
AU
AA
AA
AB
AM
AH
AF
AA
AR
2
4
4
4
13
2
4
2
5
2
2
3
1
AA
AB
AA
AA
AA
AA
AA
AA
AA
AA
AD
AA
AA
SCREWS,NUTS AND WASHERS
8mm
12mm [R-1610]
12mm [R-1611]
12mm [R-1612]
12mm
8mm
8mm
8mm
screw
8mm
HOW TO ORDER REPLACEMENT PARTS
To have your order filled promptly and correctly, please furnish the following information.
1. MODEL NUMBER
2. REF. NO.
3. PART NO.
4. DESCRIPTION
Order Parts from the authorized SHARP parts Distributor for your area.
Defective parts requiring return should be returned as indicated in the Service Policy.
22
R-1610
R-1611
R-1612
2
1
4
3
OVEN AND CABINET PARTS
7-10
6
5
7-3
4-1
6-17
A
A
7-3
1-14
4-13
1-18
2-1
7-5
4-19
7-3
4-10
2-5
B
B
7-3
4-12
4-11
7-4
1-12
2-6
7-5
1-15
7-1
C
1-16
C
1-13
1-17
4-17
7-8
1-5
7-3
1-3
6-10
D
D
7-9
4-7
4-18
4-24
4-20 x2
4-23
4-25
6-16
E
7-7
6-12
4-22
4-20 x2
E
7-3
4-9
6-9
1-10
7-6
1-9
1-8
2-2
4-6
1-11
7-9
F
7-7
6-8
4-16
6-8
4-8
4-5
1-4
6-13
7-10
4-3
6-14
4-14
1-2
1-10
4-4
F
7-11
1-7
7-8
1-1
1-6
4-15
2-3
2-8
G
G
7-3
2-4
7-3
4-2
1-13
6-13
2-7-2
1-16
H
H
2-7
7-2
2-7-1
7-2
1
2
4
3
23
5
6
R-1610
R-1611
R-1612
2
1
4
3
6
5
CONTROL PANEL PARTS
3-2
3-1
3-3
3-2-2
3-4
A
A
7-3
3-5
B
B
3-2-3
3-2-1
4-21
DOOR PARTS
5-4
C
C
5-6
5-3
5-1
5-2
5-6
D
5-2-5
D
5-2-1
5-7
5-2-3
E
E
MISCELLANEOUS
6-6
5-2-2
5-2-4
5-5
F
6-7
F
G
G
6-1
6-1-1
6-1-4
6-15
6-1-5
6-1-2
6-1-6
H
6-11
H
6-1-7
6-1-3
1
2
4
3
24
5
6
R-1610
R-1611
R-1612
PACKING AND ACCESSORIES
DOOR PROTECTOR
SPADP0221MRE0
TOP PAD
SPADBB026MRE0
4-3 TURNTABLE TRAY
WRAP COVER
SSAKH0103MRE0
6-15 RACK
RACK HOLDER
SPADFB047MRE0
DOOR PAD
SPADFA020WRE0
6-1
INSTALL MATERIAL ASSEMBLY
6-3 OPERATION MANUAL
6-5 WALL TEMPLATE
BOTTOM PAD
SPADBB025MRE0
6-2 INSTALLATION INSTRUCTION
6-4 TOP TEMPLATE
6-13 GREASE FILTER (x 2)
ACCESSORY HOLDER
SPADFB045MRE0
Non-replaceable items
25
PACKING CASE
SPAKCB233MRR12 [R-1610]
SPAKCB233MRR13 [R-1611]
SPAKCB233MRR14 [R-1612]
R-1610
R-1611
R-1612
COPYRIGHT © 1999 BY SHARP CORPORATION
ALL RIGHTS RESERVED.
No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
'99 SHARP CORP. (5S2.530E) Printed in U.S.A
26