SHARP KB3411JS JK JW, KB-3411JK, KB-3411JW. Service Manual
SUPPLEMENTAL SERVICE MANUAL
S25R247KB341J
FREE STANDING RANGE
WITH MICROWAVE DRAWER
KB-3411JS
KB-3411JK
KB-3411JW
MODELS
KB-3411JS
KB-3411JK
KB-3411JS pictured
This is a supplemental Service Manual and is quite similar to the base models KB-3300JS/JK/JW; (S74R243KB330J). This
supplemental manual must be used in conjunction with the base model service manual for complete operation, service, safety
and replacement parts information.
WARNING TO SERVICE PERSONNEL:
This service manual is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. Sharp Electronics
Corporation cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the
use of this manual.
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, High Voltage Rectifier and Heat sink etc., and Magnetron, High Voltage Harness etc..)
TABLE OF CONTENTS
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 ..................................................................................................... 3
FOREWORD AND WARNING ................................................................................................................................5
PRODUCT SPECIFICATIONS ............................................................................................................................... 6
POWER CONNECTION .........................................................................................................................................8
ANTI-TIP DEVICE ............................................................................................................................................... 10
CONTROL LAYOUT ............................................................................................................................................ 11
SCHEMATICS ..................................................................................................................................................... 12
TOUCH CONTROL PANEL ASSEMBLY .............................................................................................................16
OVEN/MICROWAVE DRAWER DISASSEMBLY .................................................................................................21
WIRING DIAGRAMS ...........................................................................................................................................33
PRINTED WIRING BOARDS ...............................................................................................................................39
PARTS LIST ........................................................................................................................................................ 44
PACKING AND ACCESSORIES .........................................................................................................................55
KB-3411JW
Page
SHARP ELECTRONICS CORPORATION
This document has been published to be used for after sales service only. The contents are subject to change without notice.
1
KB-3411JS
KB-3411JK
KB-3411JW
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.
2
WARNING TO SERVICE PERSONNEL
Range units contain circuitry capable of producing very high voltage and current, contact
with following parts
(Example)
High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage
Rectifier Assembly, High Voltage Harness, Heating Elements, etc..
Read the Service Manual carefully and follow all instructions.
Before Servicing
1. Disconnect the power supply cord , and then
remove cabinet.
2. Open the drawer and keep it open.
3. Discharge high voltage capacitor.
WARNING: RISK OF ELECTRIC SHOCK.
DISCHARGE THE HIGH-VOLTAGE
CAPACITOR BEFORESERVICING.
may result in a severe, possibly fatal, electrical shock.
KB-3411JS
KB-3411JK
KB-3411JW
When the testing is completed,
1. Disconnect the power supply cord, and then remove
covers.
2. Open the drawer and keep it open.
3. Discharge high voltage capacitor.
4. Reconnect the leads to the primary of the power
transformer.
5. Reinstall the covers.
6. Reconnect the power supply cord.
7. Run the unit and check all functions.
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.
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
neccessary covers.
2. Open the drawer and keep 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.
After repairing
1. Reconnect all leads removed from components during
testing.
2. Reinstall the covers.
3. Reconnect the power supply cord.
4. Run the oven and check all functions.
Microwave ovens should not be operated empty. To test for
the presence of microwave energy within a cavity, place a
cup of cold water on the oven tray, close the drawer 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 re-examine
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 a microwave leakage test should be carried out.
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KB-3411JK
KB-3411JW
SAFE SERVICING PRACTICES
To avoid personal injury and/or property damage, it is important that Safe Servicing
Practices be observed. The following are some limited examples of safe practices:
1. DO NOT attempt a product repair if you have any doubts as to your ability to
complete it in a safe and satisfactory manner.
2. Before servicing or moving an appliance:
• Remove the power cord from the electrical outlet, trip the circuit breaker to the
OFF position, or remove the fuse.
3. Never interfere with the proper operation of any safety device.
4. USE ONLY REPLACEMENT PARTS CATALOGED FOR THIS APPLIANCE.
SUBSTITUTIONS MAY DEFEAT COMPLIANCE WITH SAFETY
STANDARDS SET FOR HOME APPLIANCES.
5. GROUNDING : The standard color coding for safety ground wires is GREEN , or
GREEN with YELLOW STRIPES . Ground leads are not to be used as current
carrying conductors. It is EXTREMELY important that the service technician
reestablish all safety grounds prior to completion of service. Failure to do so will
create a hazard.
6. Prior to returning the product to service, ensure that:
• All electrical connections are correct and secure
• All electrical leads are properly dressed and secured away from sharp edges,
high-temperature components, and moving parts
• All non-insulated electrical terminals, connectors, heaters, etc. are adequately
spaced away from all metal parts and panels
• All safety grounds (both internal and external) are correctly and securely
connected
• All panels are properly and securely reassembled
ATTENTION!!!
This service manual is intended for use by persons having electrical and mechanical training
and a level of knowledge of these subjects generally considered acceptable in the appliance
repair trade. Sharp Electronics Corporation cannot be responsible, nor assume any liability,
for injury or damage of any kind arising from the use of this manual.
2
KB-3411JS
KB-3411JK
KB-3411JW
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 switch shall prevent microwave radiation emission in excess of the requirement as above
mentioned. Secondary interlock relay and door sensing 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 load of 275±15 ml (9.8 oz) of tap water initially at 20±5
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.
3) Set the cooking control on Full Power Cooking Mode.
4) Close the drawer 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.
O
C (68OF) in the center of the oven cavity.
C. Leakage test:
Closed-drawer leakage test (microwave measurement):
1) Grasp the probe of the survey instrument and hold it perpendicular to the gap between the drawer 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 drawer 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 drawer, pull the drawer 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 primary interlock switch/secondary interlock relay 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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NOTES
4
SERVICE MANUAL
KB-3411JS
KB-3411JK
KB-3411JW
FREE STANDING RANGE
WITH MICROWAVE DRAWER
KB-3411JS
KB-3411JK / KB-3411JW
FOREWORD
This supplemental Manual has been prepared to provide Sharp
Electronics Corp. Service Personnel with Operation and Service
Information for the SHARP FREE STANDING RANGE WITH
MICROWAVE DRAWER, KB-3411JS/JK/JW.
Models KB-3411JS, KB-3411JK, and KB-3411JW are quite similar to
models KB-3300JS/JK/JW (S74R243KB330J).
It is recommended that service personnel carefully study the entire text
of this 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.
PRODUCT DESCRIPTION
POWER CONNECTION
ANTI-TIP DEVICE
SCHEMATICS
TOUCH CONTROL PANEL
COMPONENT REPLACEMENT
AND ADJUSTMENT PROCEDURE
WIRING DIAGRAM
PARTS LIST
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
Δ
exposure, by themselves, or when they are damaged, loosened or
removed.
SHARP ELECTRONICS CORPORATION
SHARP PLAZA, MAHWAH,
NEW JERSEY 07430-2135
5
KB-3411JS
KB-3411JK
KB-3411JW
OVEN SPECIFICATION
ITEM DESCRIPTION
Power Requirements 120 /208 - 120/240Volts / 46/50 Amperes
60 Hertz
Single phase, 3 wire grounded
Thermal Oven Heating Elemants Top - 3000W Bottom - 2000W
Case Dimensions Width 29-7/8"
Height 37-5/16"
Depth 27-5/16
Cooking Cavity Dimensions Width 22-5/8"
Height 15-13/16"
3.8 Cubic Feet Depth 18"
Cook Top Heating Elements Two 6" - 1200W
One 8" - 2000W
One 6"/9" - 1200/2400W
Control Complement Touch Control System
Clock ( 1:00 - 12:59 )
Timer (0 - 99 min. 99 seconds)
Bake pad, Broil pad, Self Clean pad, Timed Cook pad, Number selection pads,
Delay Start pad, Stop/Clear pad, Oven Light pad, Control Lock pad, Setup/Custom
Help, Cooktop warm, Set/off, On, Control lock/on off, Convection, Timer/Hold to Clear
and 3 min Plus.
Oven Cavity Light 40W x 1
Safety Standard UL Listed
Weight Approx. 260 lbs.
6
MICROWAVE DRAWER SPECIFICATION
ITEM DESCRIPTION
Power Output 1000 watts (IEC TEST PROCEDURE)
Operating frequency of 2450MHz
Cooking Cavity Dimensions Width 17-11/32
Height 5-7/16"
1.0 Cubic Feet Depth 17-1/8"
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
KB-3411JS
KB-3411JK
KB-3411JW
START/MINUTE PLUS pad, Defrost pad, Number selection pad, Micro-warm/
Power Level pad, Timer/Clock pad,Stop/Clear pad, Sensor Reheat, Sensor
Popcorn, Sensor Cook, Open pad, Close pad, Setup/Custom Help.
Oven Cavity Light Yes
Safety Standard UL Listed FCC Authorized
DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J
7
KB-3411JS
POWER CORD CONNECTIONS
IMPORTANT
IMPORTANT
KB-3411JK
KB-3411JW
POWER CONNECTION
208/240 VOLT CONNECTION INSTRUCTIONS
The range can be set for 208V or 240V. The voltage setting for your
range is pre-set at 240V from the factory. Follow these steps to
change the voltage setting.
1 Locate the voltage switch on the lower back side of the
range.
2 Remove the screw and rotate the switch plate 180 as indicated
in the Figure 3.
3 Reinsert the switch plate and replace screw as indicated
in Figure 4. The voltage setting is indicated by the visible
marking.
screw
screw
240V
180
208V
Figure 3 Figure 4
3 & 4-WIRE ELECTRICAL WALL RECEPTACLE TYPES &
RECOMMENDED MOUNTING ORIENTATION ON WALL
Figure 5A illustrates 4-wire receptacle required for new and
remodeled installations.
Figure 5B illustrates 3-wire receptacle that is allowed for existing
installations.
4-wire wall receptacle (14-50R)
Figure 5A
3-wire wall receptacle (10-50R)
Figure 5B
ACCESS TO TERMINAL BLOCK
Loosen screw on rear access cover and pull down as illustrated in
Figure 6 to access terminal block wiring connection. To close, return
to original location and secure screw.
Figure 6
4-WIRE CONNECTION INSTRUCTIONS -FIGURE 8
Figure 7
Before wiring the range, review the suggested power source location.
If co nnecting t o a 4 -wire el ect ri cal system fo r a
new branch-
circuit or mobile home use a 4-wire connection.
1 Follow the power supply kit manufacturer s Installation
Instructions supplied with the strain relief clamp and install.
See Figure 7.
2 Insert the end connectors for line 1, line 2 and neutral and
tighten securely to the terminal block.
DO NOT LOOSEN the factory installed nut
connections which secure the range wiring to the terminal
block. Electrical failure or loss of electrical connection may
occur if these 3 nuts are loosened or removed.
3 You must disconnect the ground strap. Remove the factory
installed ground screw and plate to release the copper ground
strap from the frame of the range. Cut and discard the copper
ground strap and plate. KEEP the ground screw.
4 Connect the green ground wire lead with the eyelet to the frame
of the range with the ground screw using the same hole in the
frame where the ground screw was originally installed. See
Figure 8.
5 Make sure all screws are tightened securely and replace the
rear access cover. See Figure 6.
strain-relief clamp
3-WIRE CONNECTION INSTRUCTIONS
For existing installations ONLY, refer to Figure 9.
1 Follow the power supply kit manufacturer s Installation
Instructions supplied with the strain relief clamp and install.
See Figure 7.
2 Insert the end connectors for line 1, line 2 and neutral and
tighten securely to the terminal block. See Figure 7.
DO NOT LOOSEN the factory installed nut
connections which secure the range wiring to the terminal
block. Electrical failure or loss of electrical connection may
occur if these 3 nuts are loosened or removed.
8
3
Make sure all connections are tightened securely and replace
the rear access cover. See Figure 7.
GROUNDING INSTRUCTIONS- O NLY 3 -WIRE CON NECTIONS :
A ground strap is installed on this range which connects the center
terminal of the neutral terminal block to the range chassis. The
ground strap is connected to the range by the center, lowest screw
See Figure 9. The ground strap must not be removed unless National
State or Local Codes do not permit use of a ground strap.
Note: If the ground strap is removed for any reason, a separate
ground wire must be connected to the separate ground screw
attached to the range chassis and to an adequate ground source
3 & 4-WIRE PERMANENT WIRE CONNECTIONS
3–wire permanent connection – follow steps 1, 2 and 5 below.
4–wire permanent connection – follow all steps below.
Before wiring the range, review the suggested power source location
drawings in Figure 2. If connecting to a 4-wire electrical system:
1
Follow the manufacturer s Installation Instructions supplied
with the strain relief clamp and install.
2
Strip insulation away from the ends of the permanent wiring
for line 1, line 2 and neutral; also strip ground wire on 4-wire
KB-3411JS
KB-3411JK
KB-3411JW
connections. Tighten all 3 or 4-wire leads to the terminal block.
Follow wire locations shown in Figure 10.
IMPORTANT
DO NOT LOOSEN the factory installed nut
connections which secure the range wiring to the terminal
block. Electrical failure or loss of electrical connection may
occur if these 3 nuts are loosened or removed.
Note: For 3-wire permanent connection skip steps 3 and 4 and
continue with step 5.
3
Disconnect the ground strap. Remove the factory installed
ground screw and plate to release the factory installed copper
ground strap from frame of the range. Cut and discard the
copper strap from the terminal block. KEEP the ground screw,
ground plate and go to step 4.
4
Connect the green ground wire lead to the frame of the range
using the ground screw and plate as shown in Figure 11. Be sure
to install using the same hole in the frame where the ground
screw was originally installed.
5
Make sure all connections are tightened securely and replace
the rear access cover. See Figure 7.
Note: Non-terminated fi eld wire compression connections must
be set at approximately 90 in./lbs.
4-WIRE CONNECTION
Connect line
1 here.
Cut ground strap.
Discard ground strap &
ground plate.
Connect green insulated
copper ground wire with
ground screw here.
b
l
a
c
k
g
r
e
e
n
Figure 8
3-WIRE CONNECTION
Connect line
1 here.
G
r
ound
st
r
ap
Note: Install strain-relief
clamp. Center or white
wire must always be
attached to the center
terminal on block.
FOR 3 & 4-WIRE PERMANENT CONNECTIONS
termina
lblock
Note: Install strain-relief
clamp. Center or white
wire must always be
Connect
attached to the center
line 2
terminal on block.
here.
r
e
w
d
h
i
t
e
Connect neutral (white
or center) here.
A user supplied strainrelief clamp must be
installed at this location.
3
It requires 1
/8-inches
(3.5 cm) diameter cord
kit hole.
terminal
block
line 1
neutral
ground
screw
line 2
ground strap
ground plate
Figure 10
4-WIRE PERMANENT CONNECTION ONLY
ground
ground
screw
plate
ground
wire lead
er
t
m
i
n
a
lbl
o
ck
Connect
line 2
here.
Connect neutral (white
or center) here.
A user supplied strain-relief
clamp must be installed at
this location. It requires
3
1
/8-inches (3.5 cm)
diameter cord kit hole.
proper ground for
4-wire permanent
connection
Figure 9
Figure 11
9
KB-3411JS
ANTI-TIP DEVICE
KB-3411JK
KB-3411JW
NORMAL INSTALLATION STEPS
ANTI-TIP BR ACKET INSTALLATION IN STRUCTIONS
IMPO RTANT SAFETY WARNIN G
To reduce the risk of tipping of the range, the range must be secured
to the floor by properly installed Anti-Tip bracket and screws packed
with the range. Failure to install the Anti-Tip bracket will allow the
range to tip over if excessive weight is placed on an open door or if
a child climbs upon it. Serious injury might result from spilled hot
liquids or from the range itself.
If range is ever moved to a different location, the Anti-Tip bracket
must also be moved and installed with the range. Instructions are
pr ovi ded for instal lat ion in woo d or cemen t fa stene d to ei ther t he floor
or wall. When installed to the wall, make sure that screws completely
penetrate dry wall and are secured in wood or metal. When fastening
oor or wall, be sure that screws do not penetrate electrical
to the fl
wiring or plumbing.
1
LOCATE THE BRACKET - USING THE TEMPLATE
The bracket may be located on either the left or right side of the
range. Use the information below to locate the bracket if template
is not available.
2
DRILL PILOT HOLES AND FASTEN B RACKET
Drill a 1/8-inch pilot hole where screws are to be located. If bracket
is to be mounted to the wall, drill pilot hole at an approximate 20
degree downward angle. If bracket is to be mounted to masonry or
ceramic floors, drill a
5
/32-inch pilot hole 1 3/4-inches deep. The
screws provided may be used in wood or concrete material. Use a
5
/16-inch nut-driver or flat head screwdriver to secure the bracket
in place.
FASTEN BRACKET
Leveling Leg
Floor Mount
(WALL OR FLOOR MOUNTING)
Anti-Tip Bracket
1
Max 1
Wall Mount
Wall Plate
/4"
Figure 16
FASTEN BRACKET
Leveling Leg
(FLOOR MOUNTING ONLY)
More Than
1
Wall
1
/4"
Figure 15
Mark the floor or wall where left or right side of the range will be
1
located. If rear of range is against the wall or no further than 1
/4inches from wall when installed, you may use the wall or floor mount
method. If molding is installed and does not allow the bracket to fit
push against the wall, remove molding or mount bracket to the floor.
For wall mount, locate the bracket by placing the back edge of the
template against the rear wall and the side edge of template on the
mark made referencing the side of the range. Place bracket on top
of template and mark location of the screw holes in wall. If rear of
1
range is further than 1
/4-inches from the wall when installed, attach
bracket to the floor. For floor mount, locate the bracket by placing
back edge of the template where the rear of the range will be located.
Mark the location of the screw holes, shown in template.
Floor Mount
Anti-Tip Bracket
Figure 17
3
LEVEL AND POSITION RANGE
Level range by adjusting the (4) leveling legs with a wrench. Note:
1
A minimum clearance of
/8-inch is required between the bottom
of the range and the leveling leg to allow room for the bracket. Use
a level to check your adjustments. Plug range into properly prepared
electrical receptacle or if hard wired, check that it was completed
properly. Check door condition for evenness and stability. Slide
range back into position.
Visually check that rear leveling leg is inserted into and fully secured
by the Anti-Tip bracket by looking underneath the range with a
fl ashlight and carefully attempt to tilt it forward.
5
/8"
1
Range Slide
10
Figure 18
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KB-3411JW
KB-3411JW
11
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2. Terminal that is located on the right side on lamp sockets back view
must be connected to neutral wire.
N
WHT
WHT WHT
NOTES:
1. Circuits / wire colors are subject to change without notice.
HOT SURFACE
LIGHT
SWITCHES
BLU
BLU
BLK
S
2b /
S
H
1b /
H
YLW
BLK
YLW
YLW
YLW
BLK
LR
LF
L1
BLK
BLK
BLU
BLU
2b /
S
2b /
S
2b /
1b /
H
1b /
H
1b /
YLW
YLW
BRN
BLU
BRN
BLU
RR
RF
BLK
BLK
L
RESISTOR 470 kohm 1/2W
LINE CROSS CAPACITOR 1.0uF 250V
NOISE SUPRESSION COIL
MICROWAVE DRAWER
LINE BYPASS CAPACITOR
0.0033uF 250V
WHT
SECONDARY INTELOCK SWITCH
HUMIDITY
SENSOR
RED
BLK
RED
BRN
BRNBLK
FM
FAN MOTOR
WHT
SM
WHT
STIRRER MOTOR
WHT
OL
WHT
OVEN LAMP
BRN
VOLTAGE SWITCH
RED
BLK
DOOR
SENSING
SWITCH
ORG
ORG
ORG
BRN
WHT
M1
M3
GRN
F3
F2
F1
BLK
C1
ORG
N.O.
RED
RED
COM.
CONTROL
WHT
YLW
YLW
HOT SURFACE LIGHT
1a
PROTECTOR
2a
BRN
RED
WHT
WHT
LINE BYPASS CAPACITOR
0.0033uF 250V
CONTROL UNIT
RY5
RY1
RY2
PRIMARY INTERLOCK
RELAY
RED
MONITOR SWITCH
POWER TRANSFORMER
Schematic-Off Condition
COOK TOP
H1
WHT
4
2
H2
L2
P1 /
ELEMENT
FUSE
20A
RED
BLK
BLK
PL1
LEFT REAR
SURFACE
L
ORG
ORG
RED
YLW
YLW
YLW
SURFACE
ELEMENT
PROTECTOR
L2
RED
RED
CUT-OUT
CUT-OUT
COM.
N.O.
RED
CONTROL
H1
BLK
BLK
YLW
P1 /
4
LEFT FRONT
2
1a
2a
WHT
H2
L2
RED
RED
OVEN
THERMAL
MG
THERMAL
RY11
ORG
BLK
PL1
YLW
YLW
INDICATOR LIGHT
RED
BLK
3
SWITCHING POWER SUPPLY UNIT
3
1
BLK
RED
E2
E1
RED
N1
BLK
N2
N3
ORG
N4
YLW
BLU
N5
M6
M7
BRN
M14
M13
BLK
A6
A4
WHT
A1
BLU
A2
WARMER
SURFACE
ELEMENT
PROTECTOR
WHT
1
DOOR OPEN-CLOSE
MOTOR
DM
SWITCH
FRONT
GRY
SWITCH
REAR
BLK
BLK
YLW
WHT
YLW
YLW
P1 /
4
2
1a
2a
YLW
N
WHT
MICROWAVE DRAWER
DOOR
POSITION
RY-BRY-C
DOOR
POSITION
LOW VOLTAGE
TRANSFORMER
ELEMENT
RED
DOOR
SWITCH
DOOR LOCK
MOTOR
SWITCH
THERMISTOR
WHT
WHT
RED
WHT
WHT
WHT
WHT
ORG
BLK
CONV. HEATER
RED
BOTTOM HEATER
TOP HEATER
CONTROL
H1
WHT
WHT
YLW
4
RIGHT REAR
SURFACE
2
1a
PROTECTOR
2a
YLW
H2
L2
RED
FM
CLOSS FLOW
FAN MOTOR
RED
CM
BLU
CONV. MOTOR
DOOR LOCK
MOTOR
LM
OVEN LAMP
OL
YLW
WHT
WHT
BLK
BLK
BLU
RED
BRN
P1 /
BLK
BLK
ORG
PL1
YLW
YLW
4A
RIGHT FRONT
SURFACE
ELEMENT
BLK
YLW
P2
WHT
P1A /
OUTSIDE
PROTECTOR
P1B /
4
INSIDE
1a
44aS2S1
RED
RED
BLK
BLK
YLW
L1
CONTROL
YLW
YLW
YLW
INDICATOR LIGHT
2a
BRN
2
P1
WHT
RED
RED
RED
RED
RED
RED
RED
RED
L2
L2
RED
RED
BLK
BLK
L1
BLK
BLK
M4
M5
RED
RED
M9
YLW
M10
BRN
M8
ORG
M11
M12
ORG
C3 C7
YLW
BLK
CONTROL UNIT
OVEN
RY6
RY9
D1
RY8
D5
COM.
RED
BLK
BRN
RY7
C5
ORG
RY10
D3
WHT
E6 E5
GRY
E3
WHT
BLK
BLK
BLK
COM.
N.O.
RY3
BLK
N.O.
RY4
CAPACITOR
1.00uF
AC 2300V
RECTIFIER MAGNETRON
B3
B1
WHT
RED RED
OVEN THERMAL
CUT-OUT (THERMAL OVEN)
12
COOK TOP SCHEMATIC (DETAIL)
KB-3411JS
KB-3411JK
KB-3411JW
BLK
BLK
BLK
L1
BLK
YLW
ORG
CONTROL
BLK
P2
YLW
CONTROL
WHT
YLW
PL1
H1
L2
RED
RED
RED
RED
S2S1
4
RED
4a
WHT
YLW
WHT
YLW
YLW
YLW
RED
P1B /
4
P1A /
4A
YLW
INSIDE
OUTSIDE
RIGHT FRONT
SURFACE
ELEMENT
P1 /
4
WHT
YLW
RIGHT REAR
SURFACE
ELEMENT
YLW
2
INDICATOR LIGHT
1a
PROTECTOR
1a
PROTECTOR
RED
RED
P1
2
BRN
2a
H2
YLW
2a
RED
RED
WHT
L2
RED
L2
RED
RED
N
P1 /
4
WARMER
SURFACE
ELEMENT
2
1a
PROTECTOR
YLW
2a
PL1
H1
BLK
PL1
H1
1b /
H
1b /
H
1b /
H
1b /
H
YLW
WHT
BRN
YLW
BLU
YLW
BLK
YLW
YLW
YLW
YLW
YLW
YLW
BLK
YLW
YLW
WHT
YLW
YLW
BLK
ORG
CONTROL
BLK
BLK
CONTROL
2b /
S
BLK
BLU
2b /
S
BLK
BLU
2b /
S
BLK
BLU
2b /
S
BLU
HOT SURFACE
LIGHT
SWITCHES
WHT
WHT WHT
N
P1 /
4
2
LEFT FRONT
SURFACE
ELEMENT
LEFT REAR
SURFACE
ELEMENT
P1 /
4
1a
PROTECTOR
2
1a
PROTECTOR
YLW
HOT SURFACE LIGHT
BRN
BLU
BLK
INDICATOR LIGHT
H2
WHT
2a
H2
BRN
2a
RR
RF
LR
LF
RED
L2
L2
RED
RED
RED
WHT
L2
WHT
13
KB-3411JS
KB-3411JK
KB-3411JW
MICROWAVE DRAWER SCHEMATIC (DETAIL)
L1
L
LINE CROSS CAPACITOR 1.0uF 250V
LINE BYPASS CAPACITOR
0.0033uF 250V
DOOR
SENSING
SWITCH
WHT
SECONDARY INTELOCK SWITCH
HUMIDITY
SENSOR
RED
BLK
RED
BRN
BRNBLK
FM
FAN MOTOR
WHT
WHT
WHT
WHT
BRN
VOLTAGE SWITCH
SM
STIRRER MOTOR
OL
OVEN LAMP
RED
BLK
BLK
BLK
RESISTOR 470 kohm 1/2W
NOISE SUPRESSION COIL
LINE BYPASS CAPACITOR
0.0033uF 250V
WHT
M1
M3
GRN
F3
F2
F1
BLK
C1
ORG
ORG
ORG
ORG
BRN
RED
RED
N.O.
COM.
MONITOR SWITCH
WHT
CONTROL UNIT
RY5
RY1
RY2
PRIMARY INTERLOCK
RELAY
RED
POWER TRANSFORMER
FUSE
20A
RED
ORG
ORG
RED
RED
L
RED
COM.
N.O.
RED
OVEN
THERMAL
CUT-OUT
MG
THERMAL
CUT-OUT
RY11
BLK
WHT
3
1
SWITCHING POWER SUPPLY UNIT
3
1
BLK
RED
E2
E1
MICROWAVE DRAWER
DOOR OPEN-CLOSE
MOTOR
RED
N1
BLK
DM
N2
N3
ORG
N4
YLW
BLU
N5
DOOR
POSITION
SWITCH
FRONT
GRY
M6
M7
BRN
DOOR
POSITION
SWITCH
BLK
WHT
BLU
BLK
BLK
YLW
REAR
LOW VOLTAGE
TRANSFORMER
M14
M13
A6
A4
A1
A2
N
WHT
ORG
RY-BRY-C
CAPACITOR
1.00uF
AC 2300V
RECTIFIER MAGNETRON
14
WHT
B1
B3
RED
RANGE SCHEMATIC (DETAIL)
N
RED
RED
BLK
BLK
KB-3411JS
KB-3411JK
KB-3411JW
L2
L1
WHT
ORG
RY-BRY-C
RED
DOOR
SWITCH
DOOR LOCK
MOTOR
SWITCH
THERMISTOR
WHT
WHT
CLOSS FLOW
FAN MOTOR
RED
RED
BLU
CONV. MOTOR
DOOR LOCK
MOTOR
WHT
WHT
OVEN LAMP
WHT
WHT
BLK
CONV. HEATER
RED
BOTTOM HEATER
TOP HEATER
CM
YLW
WHT
WHT
BLU
RED
FM
LM
OL
BLK
BLK
WHT
BLK
BLK
BLK
GRY
RED
BRN
ORG
COM.
RED
YLW
BRN
ORG
WHT
BLK
YLW
ORG
BLK
BLK
C3 C7
D1
C5
D3
E6 E5
E3
N.O.
M4
M5
M9
M10
M8
M11
M12
BLK
CONTROL UNIT
RY6
RY9
RY8
RED
RY7
RY10
D5
RY3
COM.
BLK
RY4
N.O.
BRN
RED RED
OVEN THERMAL
CUT-OUT (THERMAL OVEN)
15
KB-3411JS
KB-3411JK
KB-3411JW
TOUCH CONTROL PANEL ASSEMBLY
OUTLINE OF TOUCH CONTROL PANEL
The touch control section consists of the following units.
(1) Keyboard unit
(2) Control Unit
(3) Power unit
The principal functions of these units and the signals communicated among them are explained below.
Keyboard unit
The keyboard unit is composed of a matrix, signals generated in the LSI are sent to the keyboard unit . When a key pad
is touched, a signal is completed through the keyboard unit
and passed back to the LSI to perform the function that was
requested.
Control Unit and Power Unit
Control unit consists of LSI, IC, reset circuit, indicator circuit,
power source circuit, relay circuit, buzzer circuit, synchronizing signal circuit, keyboard unit circuit, humidity sensor
circuit and back light circuit.
1) IC1 (LSI)
This is a microcomputer, responsible for controlling the
entire control unit.
2) IC2
This is the IC to drive the Liquid Crystal Display (LCD1).
3) IC3
This is the IC to drive the Liquid Crystal Display (LCD2).
4) IC4
This is the IC to judge the selected key.
5) IC5
This is the IC to amplify the signal from the humidity
sensor.
6) IC6
This is memory IC.
7) IC7
This is the IC to drive the relays.
8) IC8
This is the IC to drive the relays.
In addition, the synchronizing signal is available in order
to compose a basic standard time in the clock circuit.
Symbol Voltage Application
VC +5V LSI(IC1)
12) Relay Circuit
A circuit to drive the magnetron, fan motor, stirrer motor,
convection motor, door lock motor, bottom heater, top
heater, convection heater and light the oven lamp.
13) Buzzer Circuit
The buzzer is responsive to signals from the LSI to emit
audible sounds (key touch sound and completion sound).
14) Synchronizing Signal Circuit
The power source synchronizing signal is available in
order to compose a basic standard time in the clock
circuit.
It accompanies a very small error because it works on
commercial frequency.
15) Door Sensing Switch (Microwave drawer)
A switch to “tell” the LSI if the drawer is open or closed.
16) Door Switch (Oven)
A switch to “tell” the LSI if the oven door is open or closed.
17) Door Lock Monitor Switch (Oven)
A switch to “tell” the LSI if the oven door is locked or not.
18) Door Position Switch Front / Rear
The switch to “tell” the position of the Microwave drawer
door.
19) Back Light Circuit
A circuit to drive the back light (Light emitting diodes
LD1- LD6).
20) Cook Top Warmer Indicator Circuit
A circuit to drive the indicator (LD10) for Cook Top
Warmer.
21) Humidity Sensor Circuit
This circuit detects moisture of the cooking food to allow
its automatic cooking.
9) Reset Circuit
This circuit generates a signal which resets the LSI (IC1)
to the initial state when power is supplied.
10) Indicator Circuit
A circuit to drive the Liquid Crystal Displays (LCD1,
LCD2).
11) Power Source Circuit
This circuit generates voltages necessary in the control
unit from the AC line voltage.
22) Temperature Measurement Circuit : (OVEN THERMISTOR)
The temperature in the oven cavity is sensed by the
thermistor. The variation of resistance according to sensed
temperature is detected by the temperature measurement
circuit and the result applied to LSI. The LSI uses this
information to control the relay and display units.
23) Microwave Drawer Door Open-Close Motor Circuit
A circuit to drive the drawer door open-close Motor.
16
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