Sharp KB3300JK - Insight Range With Microwave Drawer, KB-3300JS, KB-3300JW, KB-3411JS, KB-3411JK Service Manual

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KB-3300JS KB-3300JK KB-3300JW

In the interest of user-safety the unit should be restored to its original condition and only parts identical to those specified should be used.

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..)

S74R243KB330J

KB-3300JS KB-3300JK KB-3300JW

FREE STANDING RANGE

WITH MICROWAVE DRAWER

MODELS

SERVICE MANUAL

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 ..................................................................................................... 3

FOREWORD AND WARNING ................................................................................................................................5

PRODUCT SPECIFICATIONS ............................................................................................................................... 6

POWER CONNECTION .........................................................................................................................................8

ANTI-TIP DEVICE ............................................................................................................................................... 10

CONTROL LAYOUT ............................................................................................................................................ 11

SCHEMATICS ..................................................................................................................................................... 12

TEST PROCEDURES ..........................................................................................................................................17

TOUCH CONTROL PANEL ASSEMBLY .............................................................................................................28

OVEN/MICROWAVE DRAWER DISASSEMBLY .................................................................................................38

WIRING DIAGRAMS ...........................................................................................................................................47

PRINTED WIRING BOARDS ...............................................................................................................................53

PARTS LIST ........................................................................................................................................................ 58

PACKING AND ACCESSORIES .........................................................................................................................69

This document has been published to be used for after sales service only. The contents are subject to change without notice.

SHARP ELECTRONICS CORPORATION

KB-3300JS pictured

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KB-3300JS KB-3300JK KB-3300JW

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.

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KB-3300JS KB-3300JK KB-3300JW

WARNING TO SERVICE PERSONNEL

Range units 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, 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.

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.

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.

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-3300JS KB-3300JK KB-3300JW

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.

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

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KB-3300JS KB-3300JK KB-3300JW

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

O

C (68OF) 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.

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.

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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KB-3300JS KB-3300JK KB-3300JW

NOTES

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KB-3300JS KB-3300JK KB-3300JW

SHARP ELECTRONICS CORPORATION

SHARP PLAZA, MAHWAH,

NEW JERSEY 07430-2135

SERVICE MANUAL

FREE STANDING RANGE

WITH MICROWAVE DRAWER

KB-3300JS

KB-3300JK / KB-3300JW

FOREWORD

This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel and Service Information for the SHARP FREE STANDING RANGE WITH MICROWAVE DRAWER, KB-3300JS, KB-3300JK, and KB-3300JW.

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.

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.

PRODUCT DESCRIPTION

POWER CONNECTION ANTI-TIP DEVICE

SCHEMATICS

TEST PROCEDURE

TOUCH CONTROL PANEL

COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE

WIRING DIAGRAM

PARTS LIST

∆

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KB-3300JS KB-3300JK KB-3300JW

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

Oven Cavity Light 40W x 1

Safety Standard UL Listed

Weight Approx. 260 lbs.

OVEN SPECIFICATION

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KB-3300JS KB-3300JK KB-3300JW

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

START/MINUTE PLUS pad, Defrost pad, Number selection pad, Power Level pad, Timer/Clock pad,Stop/Clear pad, Sensor Reheat, Sensor Popcorn, Sensor Cook, Reheat and Micro Warm.

Oven Cavity Light Yes

Safety Standard UL Listed FCC Authorized

DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J

MICROWAVE DRAWER SPECIFICATION

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KB-3300JS KB-3300JK KB-3300JW

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.

POWER CORD CONNECTIONS

4-WIRE CONNECTION INSTRUCTIONS -FIGURE 8

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.

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.

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.

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.

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.

240V

180

screw

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

Figure 3 Figure 4

208V

screw

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.

Figure 5A

4-wire wall receptacle (14-50R)

Figure 5B

3-wire wall receptacle (10-50R)

strain-relief clamp

Figure 7

POWER CONNECTION

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KB-3300JS KB-3300JK KB-3300JW

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

G

r

ound

st

r

ap

t

er

m

i

n

a

lbl

o

ck

Note: Install strain-relief clamp. Center or white wire must always be attached to the center terminal on block.

Connect neutral (white or center) here.

Connect line 1 here.

Connect line 2 here.

A user supplied strain-relief clamp must be installed at this location. It requires 1

3

/8-inches (3.5 cm)

diameter cord kit hole.

Figure 9

termina

lblock

w

h

i

t

e

r

e

d

g

r

e

n

A user supplied strainrelief clamp must be installed at this location. It requires 1

3

/8-inches (3.5 cm) diameter cord kit hole.

Connect green insulated copper ground wire with ground screw here.

Cut ground strap. Discard ground strap & ground plate.

Connect neutral (white or center) here.

Connect line 1 here.

Connect line 2 here.

b

l

a

c

k

Note: Install strain-relief clamp. Center or white wire must always be attached to the center terminal on block.

Figure 8

4-WIRE CONNECTION

3-WIRE CONNECTION

Figure 10

ground

screw

ground

wire lead

ground

plate

proper ground for 4-wire permanent connection

Figure 11

4-WIRE PERMANENT CONNECTION ONLY

FOR 3 & 4-WIRE PERMANENT CONNECTIONS

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.

terminal block

ground

screw

ground plate

ground strap

line 2

neutral

line 1

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KB-3300JS KB-3300JK KB-3300JW

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

(WALL OR FLOOR MOUNTING)

FASTEN BRACKET

(FLOOR MOUNTING ONLY)

Floor Mount

Anti-Tip Bracket

Wall

Wall Mount

Wall Plate

More Than

1

/4"

Max 1

1

/4"

Leveling Leg

3

LEVEL AND POSITION RANGE

Level range by adjusting the (4) leveling legs with a wrench. Note: A minimum clearance of

1

/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.

ANTI-TIP DEVICE

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 to the fl

oor or wall, be sure that screws do not penetrate electrical

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.

Mark the floor or wall where left or right side of the range will be located. If rear of range is against the wall or no further than 1

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 range is further than 1

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.

Figure 18

Range Slide

1

5

/8"

Figure 15

Figure 16

Figure 17

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KB-3300JS KB-3300JK KB-3300JW

KB-3300JS

HI HI

LO

MED MED

LO

SMALL LARGE

OFF

Cooktop

HILO

MED

OFF

HILO

MED

OFF

HILO

MED

OFF

Cooktop

CONTROL PANEL

KEYSHEET

MICR OWAV EOVE N

HOT SURFACE INDICATOR LIGHTS

CONTROL

KNOBS

CONTROL

KNOBS

ANTI-TIP DEVICE

CONTROL LAYOUT

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KB-3300JS KB-3300JK KB-3300JW

Schematic-Off Condition

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#

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㪧

㪣㪈

㪣㪉

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㪫㪟㪜㪩㪤㪘㪣

㪚㪬㪫㪄㪦㪬㪫㩷



㪤㪞

㪫㪟㪜㪩㪤㪘㪣

㪚㪬㪫㪄㪦㪬㪫㩷



㨪

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㪭㪦㪣㪫㪘㪞㪜㩷㪪㪮㪠㪫㪚㪟

4; $

㨪

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.

4'.#;

㨪㨪

㧱

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㪩㪜㪛

㪟㪦㪫㩷㪪㪬㪩㪝㪘㪚

㪜㩷㪣㪠㪞㪟㪫㪪

㪟㪦㪫㩷㪪㪬㪩㪝㪘㪚㪜

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㪩㪜㪪㪠㪪㪫㪦㪩㩷㪋㪎㪇㩷㫂㱅㩷㪈㪆㪉㪮

13

KB-3300JS KB-3300JK KB-3300JW

㧿㧹

㧻㧸

㧲㧹

㧮

$

㧾㨅㧝

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㩷㩷㪪㪜㪥㪪㪦㪩

㪥㪦㪠㪪㪜㩷㪪㪬㪧㪩㪜㪪㪪㪠㪦㪥㩷㪚㪦㪠㪣

㪣㪠㪥㪜㩷㪚㪩㪦㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩㩷㪈㪅㪇㱘㪝㩷㪉㪎㪌㪭

㪣㪠㪥㪜㩷㪙㪰㪧㪘㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪇㪅㪇㪇㪊㪊㱘㪝㩷㪉㪌

㪇㪭

㪣㪠㪥㪜㩷㪙㪰㪧㪘㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪇㪅㪇㪇㪊㪊㱘㪝㩷㪉㪌㪇㪭

㪝㪬㪪㪜

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㪝㪘㪥㩷㪤㪦㪫㪦㪩

㪦㪭㪜㪥㩷㪣㪘㪤㪧

㧻㧸

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㪤㪦㪥㪠㪫㪦㪩㩷㪪㪮㪠㪫㪚㪟

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㪩㪜㪚㪫㪠㪝㪠㪜㪩㪤㪘㪞㪥㪜㪫㪩㪦㪥

㪧㪦㪮㪜㪩㩷㪫㪩㪘㪥㪪㪝㪦㪩㪤㪜㪩

㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪈㪅㪇㪇㱘㪝

㪘㪚㩷㪉㪊㪇㪇㪭

㪪㪫㪠㪩㪩㪜

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㧸

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4; #

㪚㪦㪥㪫㪩㪦㪣㩷㪬㪥㪠㪫

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㪣㪈

㪥

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㪉

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㪋

㪋㪸

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㪠㪥㪛㪠㪚㪘㪫㪦㪩㩷㪣㪠㪞㪟㪫

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㪟㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪣㪜㪝㪫㩷㪩㪜㪘㪩㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪟

㪈

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㪣㪉

㪈㪹㪉㪹

㪦㪭㪜㪥㪫㪟㪜㪩㪤㪘㪣㪚㪬㪫㪄㪦㪬㪫㩷



㪤㪞㪫㪟㪜㪩㪤㪘㪣㪚㪬㪫㪄㪦㪬㪫㩷



㨪

㧯㧟㧯㧣㧯㧡

㧱㧢

㧱㧡㧱㧝

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㧢

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㪪㪜㪚㪦㪥㪛㪘㪩㪰㩷㪠㪥㪫㪜㪩㪣㪦㪚㪢㩷㪪㪮㪠㪫㪚㪟

㪭㪦㪣㪫㪘㪞㪜㩷㪪㪮㪠㪫㪚㪟

4; $

㨪

㪦㪭㪜㪥㩷㪫㪜㪤㪧㪅㩷

㪝㪬㪪㪜㩷㩿㪫㪟㪜㪩㪤㪘㪣㩷㪦㪭㪜㪥㪀

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㪙㪣㪢

㪮㪟㪫

㪞㪩㪥

㪮㪟㪫

㪙㪣㪢

㪮㪟㪫

㪙㪣㪢

㪩㪜㪛

㪙㪣㪬

㪙㪣㪢

㪦㪩㪞

㪙㪣㪬

㪙㪣㪢

㪙㪩㪥

㪞㪩㪰

㪙㪩㪥

㪞㪩㪰㪙㪩㪥

㪮㪟㪫

㪙㪣㪢

㪩㪜㪛

㪙㪣㪢

㪙㪣㪬

㪩㪜㪛

㪮㪟㪫

㪩㪝

㪣㪝

㪣㪩

㪩㪩

㪮㪟㪫

㪩㪜㪛

㪮㪟㪫

㪙㪣㪬

㪰㪣㪮

㪙㪣㪢

㪩㪜㪛

㪙㪣㪬

㪩㪜㪪㪠㪪㪫㪦㪩㩷㪋㪎㪇㩷㫂㱅㩷㪈㪆㪉㪮

On condition (Broil & Microwave)

㧿㧹

㧻㧸

㧲㧹

㧮

$

㧾㨅㧝

㧾㨅㧞

㧾㨅㧡

㪟㪬㪤㪠㪛㪠㪫㪰㩷

㩷㩷㪪㪜㪥㪪㪦㪩

㪥㪦㪠㪪㪜㩷㪪㪬㪧㪩㪜㪪㪪㪠㪦㪥㩷㪚㪦㪠㪣

㪣㪠㪥㪜㩷㪚㪩㪦㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩㩷㪈㪅㪇㱘㪝㩷㪉㪎㪌㪭

㪣㪠㪥㪜㩷㪙㪰㪧㪘㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪇㪅㪇㪇㪊㪊㱘㪝㩷㪉㪌

㪇㪭

㪣㪠㪥㪜㩷㪙㪰㪧㪘㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪇㪅㪇㪇㪊㪊㱘㪝㩷㪉㪌㪇㪭

㪝㪬㪪㪜

㪉㪇㪘

㪝㪘㪥㩷㪤㪦㪫㪦㪩

㧲㧹

㪚㪣㪦㪪㪪㩷㪝㪣㪦㪮㩷

㪝㪘㪥㩷㪤㪦㪫㪦㪩

㪦㪭㪜㪥㩷㪣㪘㪤㪧

㧻㧸

㪦㪭㪜㪥㩷㪣㪘㪤㪧

㪫㪦㪧㩷㪟㪜㪘㪫㪜㪩

㪙㪦㪫㪫㪦㪤㪟㪜㪘㪫㪜㪩

㪤㪦㪥㪠㪫㪦㪩㩷㪪㪮㪠㪫㪚㪟

㪧㪩㪠㪤㪘㪩㪰㩷㪠㪥㪫㪜㪩㪣㪦㪚㪢㩷㪩㪜㪣㪘㪰

㪩㪜㪚㪫㪠㪝㪠㪜㪩㪤㪘㪞㪥㪜㪫㪩㪦㪥

㪧㪦㪮㪜㪩㩷㪫㪩㪘㪥㪪㪝㪦㪩㪤㪜㪩

㪚㪘㪧㪘㪚㪠㪫㪦㪩

㪈㪅㪇㪇㱘㪝

㪘㪚㩷㪉㪊㪇㪇㪭

㪪㪫㪠㪩㪩㪜

㪩㩷㪤㪦㪫㪦㪩

㧸㧹

㪛㪦㪦㪩㩷㪣㪦㪚㪢㩷

㪤㪦㪫㪦㪩

㧸

㧺㧻㧚

㧯㧻㧹㧚

㧺㧻

㧯㧻㧹㧚

㧯㧝

㧾㨅

㧣

㧾㨅

㧠

㧾㨅

㧟

㧾㨅

㧤

㨪

4; #

㪚㪦㪥㪫㪩㪦㪣㩷㪬㪥㪠㪫

㧹

㪛㪦㪦㪩㩷㪣㪦㪚㪢㩷

㪤㪦㪫㪦㪩

㪪㪮㪠㪫㪚㪟

㪫㪟㪜㪩㪤㪠㪪㪫㪦㪩

㧹

㨪㨪㨪㨪

㧹

㧹

㧹

㨪㨪㨪

㧹

㪛㪦㪦㪩㩷

㪪㪮㪠㪫㪚㪟

㧹

㨪

㪚㪦㪥㪫㪩㪦㪣㩷㪬㪥㪠㪫

㪦㪭㪜㪥

㪤㪠㪚㪩㪦㪮㪘㪭㪜㩷㪛㪩㪘㪮㪜㪩

㪚㪦㪦㪢㩷㪫㪦㪧

㪣㪈

㪥

㪣㪈

㪣㪉

㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪠㪥㪪㪠㪛㪜㪦㪬㪫㪪㪠㪛㪜

㪚㪦㪥㪫㪩㪦㪣

㪩㪠㪞㪟㪫㩷㪝㪩㪦㪥㪫㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪋

㪋㪸

㪪㪉㪪㪈

㪧㪉

㪧㪈

㪟㪉

㪉㪸

㪈㪸㪉㪈

㪉㪸㪈㪸㪉㪈

㪧㪩㪦㪫㪜㪚㪫

㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪩㪠㪞㪟㪫㩷㪩㪜㪘㪩㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪟㪈

㪧㪣㪈

㪣㪉

㪟㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪣㪜㪝㪫㩷㪝㪩㪦㪥㪫㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪠㪥㪛㪠㪚㪘㪫㪦㪩㩷㪣㪠㪞㪟㪫

㪟㪦㪫㩷

㪪㪬㪩㪝㪘㪚㪜㩷㪣㪠㪞㪟㪫

㪟㪦㪫㩷㪪㪬㪩㪝㪘㪚㪜㪣㪠㪞㪟㪫㪪㪮㪠㪫㪚㪟㪜㪪

㪠㪥㪛㪠㪚㪘㪫㪦㪩㩷㪣㪠㪞㪟㪫

㪟㪈

㪧㪣㪈

㪣㪉

㪟㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪣㪜㪝㪫㩷㪩㪜㪘㪩㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪟

㪈

㪧㪣㪈

㪣㪉

㪈㪹㪉㪹

㪦㪭㪜㪥㪫㪟㪜㪩㪤㪘㪣㪚㪬㪫㪄㪦㪬㪫㩷



㪤㪞㪫㪟㪜㪩㪤㪘㪣㪚㪬㪫㪄㪦㪬㪫㩷



㨪

㧯㧟㧯㧣㧯㧡

㧱㧢

㧱㧡㧱㧝

㧾㨅

㧢

㨪㨪㨪

㪪㪜㪚㪦㪥㪛㪘㪩㪰㩷㪠㪥㪫㪜㪩㪣㪦㪚㪢㩷㪪㪮㪠㪫㪚㪟

㪭㪦㪣㪫㪘㪞㪜㩷㪪㪮㪠㪫㪚㪟

4; $

㨪

㪦㪭㪜㪥㩷㪫㪜㪤㪧㪅㩷

㪝㪬㪪㪜㩷㩿㪫㪟㪜㪩㪤㪘㪣㩷㪦㪭㪜㪥㪀

㧭㧞

㧭

㧭

㧭㧝

㧹㧝

㪛㪦㪦㪩

㪪㪜㪥㪪㪠㪥㪞

㪪㪮㪠㪫㪚㪟

㧹㧟

㧲㧟

㧲㧞

㧲㧝

㨪

㪥㪅㪦㪅

㪥㪅㪚㪅

㪧㪈

㪩㪜㪛

㪙㪩㪥

㪰㪣㪮

㪙㪣㪢

㪦㪩㪞

㪩㪜㪛

㪰㪣㪮

㪙㪣㪢

㪦㪩㪞

㪙㪣㪢

㪰㪣㪮

㪙㪣㪢

㪦㪩㪞

㪙㪣㪢

㪮㪟㪫

㪙㪣㪬

㪙㪩㪥

㪙㪣㪢

㪰㪣㪮

㪙㪣㪢

㪙㪣㪬

㪙㪩㪥

㪙㪣㪬

㪙㪣㪢

㪙㪣㪬

㪙㪣㪢

㪙㪣㪬

㪙㪣㪢

㪣㪉

㪩㪜㪛

㪙㪣㪢

㪙㪩㪥

㪩㪜㪛

㪰㪣㪮

㪮㪟㪫

㪩㪜㪛

㪰㪣㪮

㪰㪣㪮㪁㪉

㪙㪣㪢

㪮㪟㪫

㪙㪩㪥

㪙㪣㪢

㪰㪣㪮

㪩㪜㪛

㪙㪣㪢

㪩㪜㪛

㪈㪸

㪉㪸

㪩㪜㪛

㪰㪣㪮

㪰㪣㪮㪁㪉

㪙㪣㪢

㪦㪩㪞

㪙㪩㪥

㪰㪣㪮

㪮㪟㪫

㪙㪣㪢

㪦㪩㪞

㪩㪜㪛

㪙㪩㪥

㪙㪣㪢

㪙㪩㪥

㪩㪜㪛

㪞㪩㪥

㪩㪜㪛

㪮㪟㪫㪮㪟㪫

㪩㪜㪛

㪙㪣㪢

㪦㪩㪞

㪩㪜㪛

㪙㪣㪢

㪙㪩㪥

㪦㪩㪞

㪙㪣㪢

㪦㪩㪞

㪙㪣㪢

㪮㪟㪫

㪞㪩㪥

㪮㪟㪫

㪙㪣㪢

㪮㪟㪫

㪙㪣㪢

㪩㪜㪛

㪙㪣㪬

㪙㪣㪢

㪦㪩㪞

㪙㪣㪬

㪙㪣㪢

㪙㪩㪥

㪞㪩㪰

㪙㪩㪥

㪞㪩㪰㪙㪩㪥

㪮㪟㪫

㪙㪣㪢

㪩㪜㪛

㪙㪣㪢

㪙㪣㪬

㪩㪜㪛

㪮㪟㪫

㪩㪝

㪣㪝

㪣㪩

㪩㪩

㪮㪟㪫

㪩㪜㪛

㪮㪟㪫

㪙㪣㪬

㪰㪣㪮

㪙㪣㪢

㪩㪜㪛

㪙㪣㪬

㪩㪜㪪㪠㪪㪫㪦㪩㩷㪋㪎㪇㩷㫂㱅㩷㪈㪆㪉㪮

On condition (Bake & Microwave)

.

㪩㪜㪛

4'. #;

㪩㪜㪛

㨪

㧱

㧱

㪦㪩㪞

㪩㪜㪛

.

㪩㪜㪛

4'. #;

㪩㪜㪛

㨪

㧱

㧱

㪦㪩㪞

㪩㪜㪛

14

KB-3300JS KB-3300JK KB-3300JW

COOK TOP SCHEMATIC (DETAIL)

㪚㪦㪦㪢㩷㪫㪦㪧

㪥

㪣㪈

㪣㪉

㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪠㪥㪪㪠㪛㪜

㪦㪬㪫㪪㪠㪛㪜

㪚㪦㪥㪫㪩㪦㪣

㪩㪠㪞㪟㪫㩷㪝㪩㪦㪥㪫㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪋

㪋㪸

㪪㪉㪪㪈

㪧㪉

㪧㪈

㪟㪉

㪉㪸

㪈㪸㪉

㪧㪈

㪉㪸

㪈㪸

㪉

㪧㪈

㪉㪸

㪈㪸

㪉

㪧㪈

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪩㪠㪞㪟㪫㩷㪩㪜㪘㪩㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪟㪈

㪧

㪣㪈

㪣㪉

㪟㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪣㪜㪝㪫㩷㪝㪩㪦㪥㪫㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪠㪥㪛㪠㪚㪘㪫㪦㪩㩷㪣㪠㪞㪟㪫

㪟㪈

㪧

㪣㪈

㪣㪉

㪟㪉

㪧㪩㪦㪫㪜㪚㪫㪦㪩

㪚㪦㪥㪫㪩㪦㪣

㪣㪜㪝㪫㩷㪩㪜㪘㪩㪪㪬㪩㪝㪘㪚㪜㪜㪣㪜㪤㪜㪥㪫

㪟㪈

㪧

㪣㪈

㪣㪉

㪧㪈

㪰㪣㪮

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㪰㪣㪮

㪙㪣㪢

㪦㪩㪞

㪙㪣㪢

㪙㪩㪥

㪮㪟㪫

㪣㪉

㪩㪜㪛

㪮㪟㪫

㪙㪩㪥

㪩㪜㪛

㪰㪣㪮

㪮㪟㪫

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㪰㪣㪮

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㪙㪣㪢

㪰㪣㪮

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㪈㪸

㪉㪸

㪩㪜㪛

㪰㪣㪮

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㪮㪟㪫

㪙㪣㪢

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㪰㪣㪮

㪟㪦㪫㩷㪪㪬㪩㪝㪘㪚㪜㩷㪣㪠㪞㪟㪫㪪

㪟㪦㪫㩷㪪㪬㪩㪝㪘㪚㪜㪣㪠㪞㪟㪫㪪㪮㪠㪫㪚㪟㪜㪪

㪈㪹

㪉㪹

㪈㪹

㪉㪹

㪈㪹

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㪉㪹

㪙㪩㪥

㪰㪣㪮

㪙㪣㪢

㪙㪣㪬

㪙㪣㪢

㪙㪣㪬

㪙㪣㪢

㪙㪣㪬

㪙㪣㪢

㪙㪣㪬

㪩㪩

㪩㪝

㪣㪩

㪣㪝

㪧㪈㪘

㪧㪈㪙

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㪙㪣㪢

㪰㪣㪮

㪙㪣㪬

㪰㪣㪮

㪙㪣㪢

㪩㪜㪛

㪰㪣㪮

㪩㪜㪛

㪮㪟㪫

㪰㪣㪮

㪙㪣㪢

㪰㪣㪮

㪮㪟㪫

㪰㪣㪮

15

KB-3300JS KB-3300JK KB-3300JW

MICROWAVE DRAWER SCHEMATIC (DETAIL)

㧿㧹

㧻㧸

㧲㧹

㧮

$

㧾㨅㧝

㧾㨅㧞

㧾㨅㧡

㪟㪬㪤㪠㪛㪠㪫㪰㩷㩷㩷㪪㪜㪥㪪㪦㪩

㪥㪦㪠㪪㪜㩷㪪㪬㪧㪩㪜㪪㪪㪠㪦㪥㩷㪚㪦㪠㪣

㪣㪠㪥㪜㩷㪚㪩㪦㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩㩷㪈㪅㪇㱘㪝㩷㪉㪎㪌㪭

㪣㪠㪥㪜㩷㪙㪰㪧㪘㪪㪪㩷㪚㪘㪧㪘㪚㪠㪫㪦㪩㪇㪅㪇㪇㪊㪊㱘㪝㩷㪉㪌㪇㪭

㪝㪬㪪㪜㪉㪇㪘

㪝㪘㪥㩷㪤㪦㪫㪦㪩

㪦㪭㪜㪥㩷㪣㪘㪤㪧

㪤㪦㪥㪠㪫㪦㪩㩷㪪㪮㪠㪫㪚㪟

㪧㪩㪠㪤㪘㪩㪰㩷㪠㪥㪫㪜㪩㪣㪦㪚㪢㩷㪩㪜㪣㪘㪰

㪩㪜㪚㪫㪠㪝㪠㪜㪩

㪤㪘㪞㪥㪜㪫㪩㪦㪥

㪧㪦㪮㪜㪩

㩷㪫㪩㪘㪥㪪㪝㪦㪩㪤㪜

㪩

㪚㪘㪧㪘㪚㪠㪫㪦

㪩㪈㪅㪇㪇㱘㪝㪘㪚㩷㪉㪊㪇㪇㪭

㪪㪫㪠㪩㪩㪜㪩㩷㪤㪦㪫㪦㪩

㧸

㧺㧻㧚

㧯㧻㧹㧚

㧺㧻

㧯㧻㧹㧚

㧯㧝

㨪

4;#

㪚㪦㪥㪫㪩㪦㪣㩷㪬㪥㪠㪫

㪤㪠㪚㪩㪦㪮㪘㪭㪜㩷㪛㪩㪘㪮㪜㪩

㪦㪭㪜㪥

㪫㪟㪜㪩㪤㪘㪣

㪚㪬㪫㪄㪦㪬㪫㩷



㪤㪞

㪫㪟㪜㪩㪤㪘㪣

㪚㪬㪫㪄㪦㪬㪫㩷



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16

KB-3300JS KB-3300JK KB-3300JW

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17

KB-3300JS KB-3300JK KB-3300JW

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel assembly is divided into three units, Control Unit and Keyboard Unit and Power Unit, and troubleshooting by unit replacement is described according to the symptoms indicated.

Before testing,

1) Disconnect the power supply cord, and then disassemble as per "OVEN/MICROWAVE DRAWER DISASSEMBLY" page 38.

2) Open the drawer 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.

1. Keyboard Unit. NOTE ;

1) Check Keyboard glass unit connection before replacement.

2) Reconnect all leads removed from components during testing.

3) Re-install the covers.

4) Reconnect the power supply cord after the covers are installed.

5) Run the oven and check all functions.

The following symptoms indicate a defective keyboard unit. a) When touching the pads, a certain pad produces no signal at all. b) When touching a number pad, two figures or more are displayed. c) When touching the pads, sometimes a pad produces no signal. If the Keyboard unit is defective.

1) Disconnect the power supply cord, and then remove covers.

2) Open the drawer and block it open.

3) Discharge high voltage capacitor.

4) Replace the Keyboard glass unit.

5) Reconnect all leads removed from components during testing.

6) Re-install the covers.

7) Reconnect the power supply cord after the covers are installed.

8) Run the oven and check all functions.

2. Control Unit The following symptoms indicate a defective control unit. Before replacing the control unit, perform the Keyboard glass unit test (Procedure B) to determine if control unit is faulty.

2-1 In connection with indicators

a) At a certain digit, all or some segments do not light up. b) At a certain digit, brightness is low. c) Only one indicator does not light. d) The corresponding segments of all digits do not light up; or they continue to light up. e) Wrong figure appears. f) A certain group of indicators do not light up. g) The figure of all digits flicker.

2-2 Other possible problems caused by defective control unit.

a) Buzzer does not sound or continues to sound. b) Clock does not operate properly. c) Cooking is not possible.

3. Power Unit or Touch Control Transformer a) Fan motor, stirrer motor, oven lamp or electrical parts do not turn on or do not turn off. b) Digital display on the control unit does not show anything.

When testing is completed,

1) Disconnect the power supply cord, and then disassemble as per "OVEN/MICROWAVE DRAWER

DISASSEMBLY" page 38.

2) Open the drawer and block it open.

3) Discharge high voltage capacitor.

A TOUCH CONTROL PANEL ASSEMBLY TEST

18

KB-3300JS KB-3300JK KB-3300JW

1. Disconnect the power supply cord, and then disassemble as per "OVEN/MICROWAVE DRAWER DISASSEMBLY" page 38.

2. Open the drawer 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, re-connect the power supply cord.

7. Remove the covers and check voltage between Pin Nos. 1 and 3 of the 2 pin connector (CN-B) on the power unit with an A.C. voltmeter. The meter should indicate 116 or 120 volts, if not check oven circuit.

RY1 and RY2 Relay Test

These relays are operated by D.C. voltage Check voltage at the relay coil with a D.C. voltmeter during the microwave cooking operation.

DC. voltage indicated .................... Defective relay.

DC. voltage not indicated............... Check diode which is connected to the relay coil. If diode is good,

control unit is defective.

RELAY SYMBOL TEST POINT OPERATIONAL VOLTAGE CONNECTED COMPONENTS

RY1 H6 Approx. 18V D.C. Oven lamp / Stirrer motor

RY2 H4 Approx. 18V D.C. Power transformer RY3 H7 Approx. 18V D.C. Oven common relay

RY4 H8 Approx. 18V D.C. Top heater

RY5 H9 Approx. 24V D.C. Fan motor (Microwave)

RY6 H10 Approx. 24V D.C. Fan motor (Oven) RY7 H11 Approx. 24V D.C. Oven lamp (Oven)

RY8 H15 Approx. 24V D.C. Door lock motor

RY-B H14 Approx. 24V D.C. Bottom heater

C RELAY TEST

4) Reconnect all leads removed from components during testing.

5) Re-install the covers.

6) Reconnect the power supply cord after the covers are installed.

7) Run the oven and check all functions.

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

B KEYBOARD GLASS UNIT TEST

1. Disconnect the power supply cord, and then reconnect power supply cord. Display should show the word; “WAIT” in either one or both displays.

2. Immediately press the following keys within 20 seconds (Use flat part of thumb or finger): “Power Level” then “Timer Clock” then “Start / Auto Minutes” then “Stop Clear”. Test mode should start scrolling through each digit.

3. After each digit is confirmed, press every key on Keyboard Glass unit (within 50 seconds).

4. After every key is pressed, open Microwave Drawer and verify the following display:

FFFE KEYFFFF

OVEN display MICROWAVE display

If any other code is displayed, one or more Key Units are bad and the Keyboard Glass unit will need to be replaced.

5. Remove the old keyboard glass unit (see page 38) and install the new keyboard glass unit (as the normal keyboard unit).

6. Reconnect the wire harness to the keyboard glass unit.

7. Repeat steps 1 - 4 to confirm Keyboard Glass Unit is working properly.

8. Re-install the covers (confirm cooktop wires are tucked under microwave cavity lip as shown on p.38).

9. Reconnect the power supply cord after the covers are installed.

10.Run the oven and check all functions.

19

KB-3300JS KB-3300JK KB-3300JW

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

WARNING : The oven should be fully assembled before following procedure.

(1) Place one cup of water in the center of the tray in the oven cavity. (2) Close the drawer, touch the Defrost pad. Then select Steaks/Chops by touching the number pad 2.

And touch the number pad 5. (Now, weight 0.5lb is set.) And then touch the start pad. (3) The oven is in Defrost cooking condition. (4) The oven will operate as follows

WEIGHT 1ST STAGE 2ND STAGE 3RD. STAGE

LEVEL TIME LEVEL TIME LEVEL TIME

0.5lb 60% 20sec. 40% 20sec. 30% 45sec.

(5) If improper operation is indicated, the control unit is probably defective and should be checked.

D DEFROST TEST

12.Re-install the covers.

13.Reconnect the power supply cord after the covers are installed.

14.Run the oven and check all function.

To protect the electronic circuits, this model is provided with a fuse added to the primary on the PWB.

1. Fuse check and repairs.

1) Disconnect the power supply cord.

2) Remove the covers.

3) Open the drawer and block it open.

4) Discharge high voltage capacitor.

5) If the Fuse is blown, replace power unit.

6) Make a visual inspection of the varistor. Check for burned damage. If the varistor has been burned, replace the power unit.

7) Examine the touch control transformer with a tester for the presence of layer short-circuit (check the primary coil resistance which is approximately 60Ω ± 10%). If any abnormal condition is detected, replace the touch control transformer.

8) Reconnect all leads removed from components during testing.

9) Re-install the covers.

10) Reconnect the power supply cord after the covers are installed.

11) Run the oven and check all functions.

2. Follow the troubleshooting guide given below, if indicator does not light up after above check and repairs are finished.

1) Disconnect the power supply cord.

2) Remove the covers.

3) Open the drawer and block it open.

4) Discharge high voltage capacitor.

5) Disconnect the leads to the primary of the power transformer.

6) Ensure that these leads remain isolated from other components and oven chassis by using

insulation tape.

7) After that procedure, re-connect the power supply cord.

8) Follow the troubleshooting guide given below for repair.

STEPS OCCURRENCE CAUSE OR CORRECTION

1 The rated AC voltage is not present between Check supply voltage and oven power cord.

Pin Nos. 1and 3 of the 2-pin connecter (CN-B).

2 The rated AC voltage is present at primary Touch control transformer or secondary circuit defective.

side of touch control transformer. Check and replace touch control transformer or power

unit .

E PROCEDURES TO BE TAKEN WHEN THE FUSE ON THE PRINTED WIRING BOARD (PWB) IS

OPEN.

8.Disconnect the power supply cord, and then remove covers.

9.Open the drawer and block it open.

10.Discharge high voltage capacitor.

11.Reconnect all leads removed from components during testing.

20

KB-3300JS KB-3300JK KB-3300JW

9) Disconnect the power supply cord, and then remove the covers.

10) Open the drawer and block it open.

11) Discharge high voltage capacitor.

12) Reconnect all leads removed from components during testing.

13) Re-install the covers.

14) Reconnect the power supply cord after the covers are installed.

15) Run the oven and check all functions.

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT 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 95οF (35οC). (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 vapor given of by the spray and turn off before food is properly cooked.

(8) If the sensor has not detected the vapor 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 drawer. (4) Touch the TIMER/CLOCK pad once, the POWER LEVEL pad twice and the START pad once. And touch

the number pads 1 once and the number pad 4 once. Now, the oven is in the sensor cooking condition,

and "AH20" and "ON" will appear in the display. (5) The oven will operate for the first 16 seconds, without generating microwave energy. NOTE: ERROR will appear if the door is opened or STOP/CLEAR pad is touched during first stage of sensor

cooking. (6) After approximately 16 seconds, microwave energy is produced. If ERROR is displayed or the oven does not turn off, replace the AH sensor or check the control unit, refer to explanation below. If the oven stops after 5 minutes and no ERROR code is displayed, then the AH sensor is normal. Check other parts except the AH sensor.

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 disassemble as per "OVEN/MICROWAVE DRAWER

DISASSEMBLY" page 38.

(2) Open the drawer 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 testing. (7) Re-install the covers. (8) Reconnect the power supply cord after the covers are installed. (9) Reconnect the oven to the power supply and check the sensor cook operation as follows:

9-1. Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup.

F AH SENSOR TEST

21

KB-3300JS KB-3300JK KB-3300JW

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

9-2. Place the container on the center of tray in the oven cavity. 9-3. Close the door. 9-4. Touch the TIMER/CLOCK pad once, the POWER LEVEL pad twice and the START pad once. And

touch the number pads 1 once and the number pad 4 once. 9-5. The control panel is in automatic Sensor operation. 9-6. The oven turns off automatically, and the time for detecting moisture will be displayed.

If new sensor does 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 disassemble as per "OVEN/MICROWAVE DRAWER

DISASSEMBLY" page 38.

(2) Open the drawer 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 power supply cord. (9) Check the sensor cook operation proceed as follows:

9-1. Close the door. Touch the TIMER/CLOCK pad once, the POWER LEVEL pad twice and the START

pad once. And touch the number pads 1 once and the number pad 4 once. 9-2. The control panel is in the sensor cooking operation. 9-3. After approximately 25 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 time for detecting moisture.

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 covers. (11) Open the drawer 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 covers. (17) Reconnect the power supply cord after the outer case is installed. Run the oven and check all functions.

(18) Carry out "Water load cooking test" again and ensure that the oven works properly.

R1, R2 : 22

ΩΩ

Ω ± 1% 1/2W

R3 : 4.3k

ΩΩ

Ω ± 5% 1/4W

R4 : 1M

ΩΩ

Ω ± 5% 1/4W

Sensor Dummy Resistor Circuit

Plunger

NC

NO

COM

NO

NC

R3 R4

R1

R2

1

2

3

F-1

F-2

F-3

To connector (F) on Control Unit.

CONNECTOR

22

KB-3300JS KB-3300JK KB-3300JW

Element does not heat:

Checking the system with a Voltmeter, if the element does not heat up.

1. Remove the back of the control panel to expose the switch terminals.

2. With a Voltmeter set for AC on a scale higher than 240 Volts measure the voltage drop between terminals L1 and L2. If the meter reads zero the wiring between the main terminal block on the range and the switch is open. If the meter reads line to line voltage (around 240 VAC) go to step 3.

3. With the switch turned to the high position measure the voltage drop between terminals H1 and H2. If the meter reads zero the switch is defective. If the meter reads line to line voltage the switch is good. If the range has standard elements go to step 4. If the range has a glass smooth go to step 5.

4. Remove the element and measure the voltage drop between terminals of the terminal block. If the meter reads zero the terminal block or the wiring between the switch and the terminal block is open. If the meter reads line to line voltage the element is defective.

NOTE: Always inspect the terminal block for burnt spots that can cause poor connection.

5. Raise the top and locate the two terminals on the element that the wires from H1 and H2 are on. Measure the voltage drop between the two terminals. If the meter reads zero the wires

ELEMENT

CONTROL SYSTEMS

Two types of surface elements control systems are covered in this manual.

1. Standard infinite switch.

2. Dual infinite switch.

Standard infinite switch:

The surface elements and standard infinite switches provide an infinite choice of heat settings for cooking. Controls are safety type and must be pushed in before turning. All surface controls are marked on the control panel for their respective heating element. Power is supplied to the surface elements through the infinite switch contacts L1-H1 and L2-H2. During actual surface element operation, if the control is set to the high position contacts L2-H2 are lock closed providing continuous power to the element. In all other setting contacts L2-H2 will cycle to maintain the correct heat setting. Contacts L1P provide power to the surface element indicator light.

Troubleshooting:

There are four ways a surface control system with a standard infinite switch can fail.

1. The element does not heat.

2. The switch does not cycle the element off and on when set to a position other than high.

3. The element operates correctly, but the indicator light does not glow.

4. Indicator light glows with all infinite switches in the off position.

NOTE: If the indicator light glows very dimly with all the switches in the off position. This problem is caused by a capacitive feed over in the wiring and can be corrected by connecting a 100,000 Ohm 1/4 watt resistor in parallel with the light.

Continuity tests can be performed on the infinite switch contacts. All tests should be performed with power to the range disconnected, and wiring removed from the switch. Set an ohmmeter on R X 1K scale and check the contacts in the following chart and switch terminal diagram.

Contacts

Dial Posit ion

OFF LO-MED HI

L1 - P O X X

L1 - H 1 O X X

L2 - H 2 O X - C X

SURFACE

OX

- open - closed

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

G

23

KB-3300JS KB-3300JK KB-3300JW

between the switch and the element are open. If the meter reads line to line voltage the element is defective.

Element does not cycle:

If the element does not cycle when the switch is set in a position other than high the switch is defective.

Indicator light does not glow:

If indicator light does not glow when the switch is turned on, remove the back panel of the backguard, turn the switch on, and measure the voltage drop between terminals P and L2. If the meter reads zero the switch is defective. If the meter reads line to line voltage (around 240 VAC) the light or the wiring to the light is defective.

Indicator light glows full brilliance with all top element switches off:

If indicator light glows full brilliance with all top element switches off, one or more of the switches are defective. Disconnect electrical power from the range, and remove the back panel of the backguard. Disconnect the wire from the P terminal on all switches but one switch. Reconnect power. If the indicator light glows with the switch in the off position, the switch is defective. If the indicator light does not glow, the switch is good. Check each switch by disconnecting the wires from all the other P terminals but the switch you are testing.

Dual infinite switch:

The dual infinite switch is used to control the expandable and bridge elements on electric smooth top ranges. The dual infinite switches provide an infinite choice of heat settings for cooking, and two selection of element sizes. Controls are safety type and must be pushed in before turning. All surface controls are marked on the control panel for their respective heating element.

When the knob is turned clockwise, less than 180 degrees, contacts P2 to 4, P2 to 4A, and P1 to 2 closes

providing power to both elements. When the knob is turned counterclockwise, less than 180 degrees, contacts P2 to 4 and P1 to 2 close providing power to the inner element. During actual surface element operation, if the control is set to the high position contacts P1 to 2 are locked closed providing continuous power to the element. In all other settings contacts P1 to 2 will cycle to maintain the correct heat setting. Contact 4 to L2 provides power to the surface element indicator light.

Troubleshooting:

There are six ways a surface control system with a dual infinite switch can fail.

1. Both elements do not heat.

2. The outer element does not heat.

3. The inner element does not heat.

4. The switch does not cycle the element off and on when set to a position other than high.

5. The element operates correctly, but the indicator light does not glow.

6. Indicator light glows with all the infinite switches in the off position.

NOTE: If the indicator light glows very dimly with all the switches in the off position. This problem is caused by a capacitive feed over in the wiring and can be corrected by connecting a 100,000 Ohm 1/4 watt resistor in parallel with the light.

SMALL ELEMENT

LARGE ELEMENT

See Cook Surface Schematic, Fig. 1

S2

S1

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

24

KB-3300JS KB-3300JK KB-3300JW

Both elements do not heat:

Checking the system with a Voltmeter, if the elements do not heat up:

1. Remove the back panel of the backguard to expose the switch terminals.

2. With a Voltmeter set for AC and a scale higher than 240 Volts measure the voltage drop between terminals P1 and P2. If the meter reads zero the wiring between the main terminal block on the range and the switch is open. If the meter reads line to line voltage (around 240 VAC) go to step 3.

3. With the switch turned clockwise to the HI position, measure the voltage drop between terminals 4 and 2. If the meter reads zero the switch is defective. If the meter reads line to line voltage measure the voltage drop between terminals 4A and 2. If the meter reads line to line voltage the switch is good. Go to step 4.

4. Raise the top and locate the two terminals on the element with the wires from terminals 4 and 2 are connected. Measure the voltage drop between these two terminals. If the meter reads zero the wires between the switch and the element are open. If the meter reads line to line voltage the element is defective.

Outer element doesn’t heat, but inner element does:

Checking the system with a Voltmeter, if the outer element does not heat, but the inner element does:

1. Remove the back panel of the backguard to expose the switch terminals.

2. With the switch turned clockwise to the high position measure the voltage drop between terminals 4A and 2. If the meter reads zero the switch is defective. If the meter reads line to line voltage, go to step 3.

3. Raise the top and locate the two terminals on the element where the wires from terminals 4A and 2 are connected. Measure the voltage drop between these two terminals. If the meter reads zero the wires between the switch and the element are open. If the meter reads line to line voltage the element is defective.

Inner element doesn’t heat, but outer element does:

Checking the system with a Voltmeter, if the inner element does not heat, but the outer element does:

1. Remove the back panel of the backguard to expose the switch terminals.

2. With the switch turned clockwise to the high position measure the voltage drop between terminals 4 and 2. If the meter reads zero the switch is defective. If the meter reads line to line voltage, go to step 3.

3. Raise the top and locate the two terminals on the element where the wires from terminals 4 and 2 are connected. Measure the voltage drop between these two terminals. If the meter reads zero the wires between the switch and the element are open. If the meter reads line to line voltage the element is defective.

Elements do not cycle:

If the elements do not cycle when the switch is set in a position other than high the switch is defective.

Indicator light does not glow:

If indicator light does not glow when the switch is turned on, remove the back panel of the backguard, turn the switch on, and measure the voltage drop between terminals 4 and L2. If the meter reads zero the switch is defective. If the meter reads line to line voltage (around 240VAC) the light or the wiring to the light is defective.

Indicator light glows full brilliance with all top element switches off:

If indicator light glows full brilliance with all top element switches off, one or more of switches are defective. Disconnect electrical power from the range, and remove the back panel of the backguard. Disconnect the wire from terminal 4 on the switches from all but one switch. Reconnect power. If the indicator light glows with the switch in the off position the switch is defective. If the indicator light does not glow the switch is good. Check each dual infinite switch by disconnecting the wires from all the other 4 terminals but the switch you are testing.

See Cook Surface Schematic, Fig. 1

S2

S1

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

25

KB-3300JS KB-3300JK KB-3300JW

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. To test for an open filament, isolate the magnetron from the high voltage circuit. A continuity check across the magnetron filament leads should indicate less than 1 ohm.

5. To test for a shorted magnetron, connect the ohmmeter leads between the magnetron filament leads and chassis ground. This test should indicate an infinite resistance. If there is little or no resistance the magnetron is grounded and must be replaced.

6. Reconnect all leads removed from components during testing.

7. Reassemble the unit.

8. Reconnect the power supply cord.

9. Run the oven and check all functions.

MICROWAVE OUTPUT POWER

The following test procedure should be carried out with the microwave oven in a fully assembled condition.

HIGH VOLTAGES ARE PRESENT DURING THE COOK CYCLE, SO EXTREME CAUTION SHOULD BE OBSERVED.

Power output of the magnetron can be measured by performing a water temperature rise test. This test should only be used if above tests do not indicate a faulty magnetron and there is no defect in the following components or wiring: inverter unit. This test will require a 16 ounce (453cc) measuring cup and an accurate mercury thermometer or thermocouple type temperature tester. For accurate results, the following procedure must be followed carefully:

1. Fill the measuring cup with 16 oz. (453cc) of tap water and measure the temperature of the water with a thermometer or thermocouple temperature tester. Stir the thermometer or thermocouple through the water until the temperature stabilizes. Record the temperature of the water.

2. Place the cup of water in the oven. Operate oven at POWER 10(HIGH) selecting more than 60 seconds cook time. Allow the water to heat for 60 seconds, measuring with a stop watch, second hand of a watch or the digital read-out countdown.

3. Remove the cup from the oven and again measure the temperature, making sure to stir the thermometer or thermocouple through the water until the maximum temperature is recorded.

4. Subtract the cold water temperature from the hot water temperature. The normal result should be 60.8

ο

to 86οF(16ο to 30οC) rise in temperature. If the water temperatures are accurately measured and tested for the required time period the test results will indicate if the magnetron tube has low power output (low rise in water temperature) which would extend cooking time or high power output (high rise in water temperature) which would reduce cooking time. Because cooking time can be adjusted to compensate for power output, the magnetron tube assembly should be replaced only if the water temperature rise test indicates a power output well beyond the normal limits. The test is only accurate if the power supply line voltage is 120 volts and the oven cavity is clean.

H MAGNETRON ASSEMBLY TEST

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. A continuity check across the thermal cut-out terminals should indicate a closed circuit unless the temperature of the thermal cut-out reaches approximately 293οF(145οC). An open thermal cut-out indicates overheating of the oven, exchange the oven thermal cut-out and check inside of oven cavity and for improper setting of cooking time or operation of control unit. Check for restricted air flow through the vent holes of the oven cavity, especially the cooling fan and air guide.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the unit and check all functions.

CAUTION: IF THE THERMAL CUT-OUT INDICATES AN OPEN CIRCUIT AT ROOM TEMPERATURE,

REPLACE THERMAL CUT-OUT.

I OVEN THERMAL CUT-OUT TEST

Refer to the disassembly instructions found on Page 16.

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

26

KB-3300JS KB-3300JK KB-3300JW

MMOONNIITTOOR

R

SSWWIITTCCH

H

IINNTTEERRLLOOCCK

K

SSWWIITTCCH

H

SSEECCOONNDDAARRY

Y

((BBLLKK)

)

((BBRRNN,,GGRRYY)

)

((BBRRNN,,BBLLKK)

)

((RREEDD)

)

Screw Driver

Ohmmeter

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the drawer open and a closed circuit with the drawer closed. If improper operation is indicated, replace the secondary interlock switch.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the oven and check all functions.

J SECONDARY INTERLOCK SWITCH TEST

STOP SWITCH

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. Isolate the switch and connect the ohmmeter to the common (COM.) and normally open (NO) terminal of the switch. The meter should indicate an open circuit with the drawer open and a closed circuit with the drawer closed. If improper operation is indicated, replace the stop switch.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the oven and check all functions.

NOTE: If the stop switch contacts fail in the open position and the door is closed, the cooling fan motor,

stirrer motor and oven light will be activated by RY1.

K STOP SWITCH TEST

L MONITOR SWITCH TEST

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. Before performing this test, make sure that the secondary interlock switch, according to the above Switch Test Procedure. Disconnect the wire lead from the monitor switch (COM) terminal. Check the monitor switch operation by using the ohmmeter as follows. When the drawer is open, the meter should indicate a closed circuit. When the monitor switch actuator is pushed by a screw driver through the lower latch hole on the front plate of the oven cavity with the drawer opened (in this condition the plunger of the monitor switch is pushed in), the meter should indicate an open circuit. If improper operation is indicated, the switch may be defective and both the monitor switch, plus fuse will need to be replaced. After testing the monitor switch, reconnect the wire lead to the monitor switch (COM) terminal and check the continuity of the monitor circuit.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the oven and check all functions.

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

27

KB-3300JS KB-3300JK KB-3300JW

EE 6 (displayed when oven starts) - Oven Thermistor is open.

Check thermistor or control unit.

EE 7 (displayed when oven starts) - Oven Thermistor is shorted.

Check thermistor or control unit.

EE L (displayed after 1 minute of cooking or self cleaning) - Lower door lock error.

Check lock motor, lock switch (RY 8) or control unit.

SPECAIL FAILURE NOTE:

During the Microwave Drawer operation, if it goes dead, check each Thermal Cut-out first. This is due to the whole control unit being powered by Line L1 (refer to Schematic on page 13).

O FAILURE CODES

The following failure codes will be displayed on the Control Panel.

TEST PROCEDURES

PROCEDURE

LETTER

COMPONENT TEST

N POWER TRANSFORMER TEST

1. Disconnect the power supply cord.

2. Open the drawer and block it open.

3. Discharge high voltage capacitor.

4. Disconnect the primary input terminals and measure the resistance of the transformer with an ohmmeter. Check for continuity of the coils with an ohmmeter. On the R x 1 scale, the resistance of the primary coil should be less than 1 ohm and the resistance of the high voltage coil should be approximately 90 ohms; the resistance of the filament coil should be less than 1 ohm.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the oven and check all functions.

(HIGH VOLTAGES ARE PRESENT AT THE HIGH VOLTAGE TERMINAL, SO DO NOT ATTEMPT TO MEASURE THE FILAMENT AND HIGH VOLTAGE.)

1. Disconnect the power supply cord.

2. Open the drawer and block it open.

3. To discharge high voltage capacitor, wait for 60 seconds.

4. If the monitor fuse is blown when the drawer is opened, check the primary interlock switch, secondary interlock switch and monitor switch according to the "TEST PROCEDURE" for those switches before replacing the blown monitor fuse.

CAUTION: BEFORE REPLACING A BLOWN MONITOR FUSE, TEST THE SECONDARY INTERLOCK

SWITCH, STOP SWITCH AND MONITOR SWITCH FOR PROPER OPERATION. If the monitor fuse is blown by improper switch operation, the monitor fuse and monitor switch must be replaced with "monitor fuse and monitor switch assembly" part number FFS-BA018/KIT, even if the monitor switch operates normally. The monitor fuse and monitor switch assembly is comprised of a 20 ampere fuse and switch.

5. Reconnect all leads removed from components during testing.

6. Reassemble the unit.

7. Reconnect the power supply cord.

8. Run the oven and check all functions.

M BLOWN MONITOR FUSE TEST

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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.

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. 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, door lock motor, bottom heater, top 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) Back Light Circuit

A circuit to drive the back light (Light emitting diodes LD1- LD6).

19) Humidity Sensor Circuit

This circuit detects moisture of the cooking food to allow its automatic cooking.

20) 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.

29

KB-3300JS KB-3300JK KB-3300JW

1 AN5 IN Temperature measurement input: OVEN THERMISTOR.

By inputting DC voltage corresponding to the temperature detected by the thermistor, this input is converted into temperature by the A/D converter built into the LSI.

2 AN4 IN Turminal not used.

3 AN3 OUT Door lock motor driving signal.

To turn on and off shut-off relay(RY8). “H”level during door lock motor driving “L” level otherwise

4 AN2 IN Input signal which communicates the oven door locked information to LSI.

Door unlocked; “H” level signal(+5V). Door locked; “L” level signal(0V).

5 AN1 IN Input signal which communicates the oven door unlocked information to LSI.

Door locked; “H” level signal(+5V). Door unlocked; “L” level signal(0V).

6 AN0 IN Turminal not used.

7 CNVSS IN Power source voltage: 0V (GND).

VC voltage of power source circuit input. Connected GND.

8 RESET IN Auto clear terminal.

Signal is input to reset the LSI to the initial state when power is applied. Temporarily set to “L” level the moment power is applied, at this time the LSI is reset. Thereafter set at “H” level.

9 P62 OUT Memory (EEPROM) clock out.

10 P61 IN/OUT Memory (EEPROM) data input/output.

11 VSS IN Power source voltage: 0V (GND).

VS voltage of power source circuit input. Connected GND.

12 XIN IN Internal clock oscillation frequency setting input.

The internal clock frequency is set by inserting the ceramic filter oscillation circuit with respect to Xout terminal.

13 XOUT OUT Internal clock oscillation frequency control output.

Output to control oscillation input of Xin.

14 VCC IN Power source voltage: +5V.

VC voltage of power source circuit input.

15 P60 OUT Turminal not used.

16 -19 P37- P34 OUT Turminal not used.

20 RXD2 IN Input terminal to check the data of display.

Data signal from IC-3 is input to RXD2 to check the flow of the data.

21 TXD2 IN Output terminal to send IC-2 the data.

The data of display is output to IC-2.

22 SCLK OUT Clock timing signaI output terminal.

Clock timing signal is sent to IC-2 and IC-3.

23 P30 OUT Signal to reset LSI.

Signal is output to reset IC-2, IC-3 and IC-4.

24 - 27

COM3 - COM0

OUT Turminal not used.

28 VL3 IN Connected VC (+5V).

29 - 34 P27- P22 OUT Turminal not used.

35 P21 OUT Turminal not used.

36 P20 OUT Turminal not used.

DESCRIPTION OF LSI (IC-1)

The I/O signal of the LSIis detailed in the following table.

Pin No. Signal I/O Description

ON

OFF

During

door lock

motor driving

L: GND

H: +5V

30

KB-3300JS KB-3300JK KB-3300JW

37 P17 OUT Bottom heater relay driving signal.

To turn on and off relay(RYB). “H” level: During bottom heater relay ON. “L” level: During bottom heater relay OFF.

38 P16 OUT Turminal not used.

40 P14 OUT Door lock motor driving signal.

To turn on and off relay(RY8). “H” level: During door lock motor ON. “L” level: During door lock motor OFF.

41 P13 OUT Oven lamp (Oven) driving signal.

To turn on and off relay(RY7). “H” level: During oven lamp ON. “L” level: During oven lamp OFF.

42 P12 OUT Fan motor (Oven) driving signal.

To turn on and off relay(RY6). “H” level: During fan motor ON. “L” level: During fan motor OFF.

43 P11 OUT Fan motor (Drawer) driving signal.

To turn on and off relay(RY5). “H” level: During fan motor ON. “L” level: During fan motor OFF.

44 P10 OUT Top heater driving signal.

To turn on and off relay(RY4). “H” level: During top heater ON. “L” level: During top heater OFF.

45 P07 OUT Oven common relay driving signal.

To turn on and off relay(RY3). “H” level: During oven common relay ON. “L” level: During oven common relay OFF.

46 P06 OUT Oven lamp and stirrer motor driving signal.

To turn on and off relay(RY1). “H” level: During oven lamp and stirrer motor ON. “L” level: During oven lamp and stirrer motor OFF.

47 P05 OUT Magnetron high-voltage circuit driving signal.

To turn on and off the cook relay(RY2). In 100% power operation, the signals holds “H” level during microwave cooking and “L” level while not cooking. In other cooking modes (90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10%, 0%) the signal turns to “H” level and “L” level in repetition according to the power level.

48-52 P04-P00 OUT Used for initial balancing of the bridge circuit (absolute humidity sensor).

53 P57 OUT Common relays driving signal. (Square Waveform : 60Hz)

To turn on and off the shut-off relays (RY1 and RY3). The square waveform voltage is delivered to the relays (RY1 and RY3) driving circuit.

54 P56 IN Signal coming from key unit.

55 TXD1 IN Signal coming from key unit.

56 RXD1 IN Signal coming from key unit.

Pin No. Signal I/O Description

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

ON

OFF

L: GND

H: +5V

Microwave cooking mode

Other cooking mode

VARI MODE ON TIME OFF TIME ON TIME OFF TIME

100% power 32 sec. 0 sec. 60sec. 0ec.

90% power 30 sec. 2 sec. 54sec. 6sec.

80% power 26 sec. 6 sec. 48sec. 12sec.

70% power 24 sec. 8 sec. 42sec. 18sec.

60% power 22 sec. 10 sec. 36sec. 24sec.

50% power 18 sec. 14 sec. 30sec. 30sec.

40% power 16 sec. 16 sec. 24sec. 36sec.

30% power 12 sec. 20 sec. 18sec. 42sec.

20% power 8 sec. 24 sec. 12sec. 48sec.

10% power 6 sec. 26 sec. 4sec. 56sec.

0% power 0 sec. 32 sec. 0sec. 60sec.

ON

OFF

L: GND

H: +5V

During cooking

L: GND

H: +5V

16.7 msec.

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Pin No. Signal I/O Description

57 P53 IN To input signal which communicates the oven door open/close information to LSI.

Door open "H" level signal (+5V). Door close "L" level signal (GND).

58 P52 OUT Signal to sound buzzer.

A: Key touch sound.

B: Completion sound.

C: When the oven stops so that the food can be

checked in Automatic cooking mode.

59 P51 IN Input signal which communicates the drawer door open/ close information to LSI.

Door opened; “H” level signal(+5V). Door closed; “L” level signal(0V).

60 INT0 IN Signal to synchronize LSI with commercial power source frequency.

This is the basic timing for all real time processing of LSI.

61 AVSS IN A/D converter power source voltage.

The power source voltage to drive the A/D converter in the LSI.

62 VREF IN Reference voltage input terminal.

A reference voltage applied to the A/D converter in the LSI. Connected to +5V.

63 AN7 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.

64 AN6 IN Used for initial balancing of the bridge circuit (absolute 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.

A

B

C

H: +5V

L: GND

0.1 sec

2.0 sec

1.0 sec

16.7 msec.

H : +5V

L : GND

32

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(1) Structure of Humidity Sensor

The 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.

(2) Operational Principle of 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

ο

C (302οF), 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 varied every minute, it is amplified by the operational amplifier.

(3) Detector Circuit of 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 AN6 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 R45 ~ R49. Changing the resistance values results in that there is the same

HUMIDITY SENSOR CIRCUIT

potential at both F-3 terminal of the absolute humidity sensor and AN6 terminal of the LSI. The voltage of AN7 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 balance of the bridge circuit is deviated to increase the voltage available at AN6 terminal of the LSI. Then the LSI observes that voltage at AN7 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 AN7 terminal 16 seconds after the unit has been put in the Sensor Cooking mode, if it is not possible to balance the bridge circuit due to disconnection of the absolute humidity sensor, ERROR will appear on the display and the cooking is stopped.

1) Humidity sensor circuit

ventilation opening for sensing

Sensing part (Open vessel)

Sensing part (Closed vessel)

Thermistors

S

C

R3

R1

R2

+

Operational amplifier

Output voltage

S : Thermistor open vessel

C : Thermistor closed vessel

2

Absolute humidity (g/m )

Output voltage

Absolute humidity vs, output voltage characteristi

c

R43 1.8K

VA : +15V VC : +5V

R42 3.57K

R41 3.32K

S

C

R51 47K R45 620K

R46 300K

R47 150K

R48 75K

R49 37.4K

R44 360K

R50 10K

3

F2

8

4

1

2

IC3

+

-

R40

430

C42 0.1F

D40 D41

R52 47K

86

P04

P03

P02

P01

P00

AN6

SW1

SW2

SW3

SW4

SW5

AN7

LSI (IC1)

85

95

96

97

98

99

C. Thermistor in closed vessel S. Thermistor in open vessel

F3

F1

33

KB-3300JS KB-3300JK KB-3300JW

IC-7

IC-8

OVEN TEMPERATURE/SELF CLEANING CONTROL CIRCUIT

34

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OVEN DOOR LOCK MOTOR CONTROL CIRCUIT

35

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OVEN DOOR LOCK MOTOR DETECTION CIRCUIT

36

KB-3300JS KB-3300JK KB-3300JW

1. Precautions for Handling Electronic Components

This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at its input and output terminals. For this reason, it is easily influenced by the surrounding high voltage power source, static electricity charge in clothes, etc. and sometimes it is not fully protected by the built-in protection circuit. In order to protect CMOS LSI.

1) When storing and transporting, thoroughly wrap them in aluminium foil. Also wrap all PW boards containing them in aluminium foil.

2) When soldering, ground the technician as shown in the figure and use grounded soldering iron and work table.

2. Servicing of Touch Control Panel

We describe the procedures to permit servicing of the touch control panel of the microwave oven and the precautions you must take when doing so. To perform the servicing, power to the touch control panel is available either from the power line of the oven itself or from an external power source.

(1) Servicing the touch control panel with power supply

of the oven: CAUTION: THE HIGH VOLTAGE TRANSFORMER OF THE MICROWAVE OVEN IS STILL LIVE DURING SERVICING AND PRESENTS A HAZARD.

Therefore, before checking the performance of the touch control panel,

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, re-connect the power supply

cord. After checking the performance of the touch control panel,

1) Disconnect the power supply cord.

2) Open the door and block it open.

3) Re-connect the leads to the primary of the power

transformer.

4) Re-install the outer case (cabinet).

5) Re-connect the power supply cord after the outer

case is installed.

6) Run the oven and check all functions.

TOUCH CONTROL PANEL SERVICING

A. On some models, the power supply cord between the

touch control panel and the oven itself is so short that the two can’t be separated. For those models, check and repair all the controls (sensor-related ones included) of the touch control panel while keeping it connected to the oven.

B. On some models, the power supply cord between the

touch control panel and the oven proper is long enough that they may be separated from each other. For those models, it is possible to check and repair the controls of the touch control panel while keeping it apart from the oven proper; in this case you must short both ends of the door sensing switch (on PWB) of the touch control panel with a jumper, which activates an operational state that is equivalent to the oven door being closed. As for the sensor-related controls of the touch control panel, checking them is possible if dummy resistor(s) with resistance equal to that of the controls are used.

(2) Servicing the touch control panel with power supply

from an external power source:

Disconnect the touch control panel completely from the oven proper, and short both ends of the door sensing switch (on PWB) of the touch control panel, which activates an operational state that is equivalent to the oven door being closed. Connect an external power source to the power input terminal of the touch control panel, then it is possible to check and repair the controls of the touch control panel it is also possible to check the sensor-related controls of the touch control panel by using the dummy resistor(s).

3. Servicing Tools

Tools required to service the touch control panel assembly.

1) Soldering iron: 30W (It is recommended to use a soldering iron with a grounding terminal.)

2) Oscilloscope: Single beam, frequency range: DC10MHz type or more advanced model.

3) Others: Hand tools

4. Other Precautions

1) Before turning on the power source of the control unit, remove the aluminium foil applied for preventing static electricity.

2) Connect the connectors of the key unit to the control unit being sure that the lead wires are not twisted.

3) After aluminium foil is removed, be careful that abnormal voltage due to static electricity etc. is not applied to the input or output terminals.

4) Attach connectors, electrolytic capacitors, etc. to PWB, making sure that all connections are tight.

5) Be sure to use specified components where high precision is required.

approx. 1M ohm

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PRECAUTIONS FOR USING LEAD-FREE SOLDER

1. Employing lead-free solder

The "Main PWB" of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder. Example:

Indicates lead-free solder of tin, silver and copper.

2. Using lead-free wire solder

When repairing a PWB with the "LF" symbol, only lead-free solder should be used. (Using normal tin/lead alloy solder may result in cold soldered joints and damage to printed patterns.) As the melting point of lead-free solder is approximately 40oC higher than tin/lead alloy solder, it is recommend that a dedicated bit is used, and that the iron temperature is adjusted accordingly.

3. Soldering

As the melting point of lead-free solder (Sn-Ag-Cu) is higher and has poorer wettability, (flow), to prevent damage to the land of the PWB, extreme care should be taken not to leave the bit in contact with the PWB for an extended period of time. Remove the bit as soon as a good flow is achieved. The high content of tin in lead free solder will cause premature corrosion of the bit. To reduce wear on the bit, reduce the temperature or turn off the iron when it is not required. Leaving different types of solder on the bit will cause contamination of the different alloys, which will alter their characteristics, making good soldering more difficult. It will be necessary to clean and replace bits more often when using lead-free solder. To reduce bit wear, care should be taken to clean the bit thoroughly after each use.

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Control Knobs

Retainers

Glass Key Deco

Indicator Lamps

Lens

GND Deco Screw

OVEN / MICROWAVE DRAWER DISASSEMBLY

Fig. 1

1. Before removing Control Panel, take measures to protect the Cook Top surface and keep Microwave Drawer open to prevent scratches.

2. Remove all Control Knobs (Fig 1).

3. Unscrew all Retainers (Fig 1).

4. Unscrew Glass Key Deco screw (1) (Fig 1).

5. Carefully lift Glass Key Deco and unhook

Indicator Lamp from Lens (Fig 1).

6. Remove all screws from Control Panel Mold (Fig 2).

7. Slide Control Panel Mold to left (to unlock) and lift (Fig 2).

8. Remove Gasket from Key Fixing Angle (Fig 3).

9. Lift Key Fixing Mold and carefully unhook all Molex’s, ground wire and C/P wiring (Fig 3).

WARNING: Follow all safety precautions beginning on Page 2 before proceeding!

Control Panel Mold

Gasket

Key Fixing Angle

Fig. 2

Fig. 3

NOTE: When reassembling, it is very important

that all Cook Top wires are tucked under the Microwave cavity lip and secured with the RED WIRE STRAP. The 240v harness can create noise that can interfere with C/P function (example: intermittent or no keyboard operation).

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Back Panel

Side Panels

Select Switch

12. Remove all screws on back panel and covers then remove side panels (Fig. 6).

13. Unhook wires from Select Switch assembly by carefully lifting back cover and leaning to gain access (Fig. 6).

Fig. 6

10. Remove screws from Control Panel Frame (Fig 4).

11. Slide Cook Top forward to unlock from shoulder screws, then remove or reposition (Fig. 5).

Control Panel Frame

Fig. 4

Fig. 5

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OVEN COMPONENT REMOVAL

1. After dissaembly as stated on Pages 38 - 39, remove Microwave Drawer assembly by removing (2) screws (right & left) from front of Microwave Baseplate (Fig. R-1).

2. Unhook wires from Range Oven to Microwave Drawer, remove Drawer assembly from Oven.

You now have access to Range Oven components.

MICROWAVE DRAWER ASSEMBLY REMOVAL TO ACCESS OVEN COMPONENTS

Fig. R-1

screw

Air Duct

Back Plate

At this point, you will have access to all parts of the Microwave and Oven.

14. Remove screws from Microwave top Air Duct and take off (Fig. 7).

15. Remove all screws from Microwave Back Plate (Fig. 7).

16. Lift Back Plate and remove carefully not to damage any wires (Fig. 7).

NOTE: The Microwave Back Plate cannot be completely removed due to wiring. If you need to remove, you will have

to unhook all wiring routed through it.

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1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the Cook Top.

5. Remove the Cook Top Stay (right or left).

6. Remove the screw holding the latch hook to the oven flange.

7. Remove the latch hook from the oven flange.

8. Disconnect the wire leads of each switch.

9. Remove each switch from the latch hook by pushing the one (1) stopper tab holding each switch.

10.Now, each switch is free.

STOP SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH REMOVAL

Re-install

1. Re-install each switch in its place. The secondary interlock switch is in the lower position and the monitor switch is in the top position, located on the left side of the unit. The door sensing switch by itself on the right side of the unit.

2. Re-connect wire leads to each switch. Refer to pictorial diagram.

3. Secure the latch hooks with mounting screws to oven flange.

4. Make sure that the monitor switch is operating properly and check continuity of the monitor circuit. Refer to chapter "Test Procedure" and "Adjustment procedure".

2. Open the drawer and keep it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the Cook Top.

5. Remove the Cook Top Stay (right or left). If the door sensing switch, secondary interlock switch and monitor switch do not operate properly due to a misadjustment, the following adjustment should be made.

6. Loosen the screw holding latch hook to the oven cavity flange.

7. With drawer closed, adjust latch hook by moving it back and forth, and up and down. In and out play of the door allowed by the upper and lower position of the latch hook should be less than 0.5mm. The vertical position of the latch hook should be adjusted so that the secondary interlock switch is activated with the drawer closed. The horizontal position of the latch hook should be adjusted so that the monitor switch and drawer sensing switch are activated with the drawer closed.

8. Secure the screws with washers firmly.

9. Check all of the switches operation. If any switch has not activated fully, you will need to adjust the slide rail attached to the Microwave cavity.

10.This is done by following the steps to remove the "DRAWER/SLIDE RAIL REMOVAL" on page 42. After you have removed the slide rails, loosen the "2" screws holding the slide rail to the Microwave cavity and tilt the front end up and the rear end down, then tighten the screws (Fig. S-1).

STOP SWITCH, SECONDARY INTERLOCK SWITCH AND MONITOR SWITCH

ADJUSTMENT

1. Disconnect the power supply cord. 11.Check and assure that the cap nuts on the Drawer

Support Angles are centered when passing through the cavity face plate.

After adjustment, check the following.

1. In and out play of door remains less than 0.5mm when in the latched position. First check upper position of latch hook, pushing and pulling upper portion of drawer toward the oven face. Then check lower portion of the latch hook, pushing and pulling lower portion of the door toward the oven face. Both results (play in the door) should be less than 0.5mm.

2. The secondary interlock switch switch interrupt the circuit before the door can be opened.

3. Monitor switch contacts close when door is opened.

4. Door sensing switch contacts open when door is opened.

5. Reassemble the unit and check for microwave leakage around door with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.

Latch Hook Left

Latch Hook Right

Fig. S-1

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DRAWER ASSEMBLY AND CHOKE REMOVAL

1. Disconnect the power supply cord.

2. Open the drawer and keep it open.

3. To discharge the high voltage capacitor, wait for 60 seconds.

4. Remove the both right and left Cook Top Stays.

5. Remove (2) Drawer Support Covers from Choke Cover as shown in (Fig. D-1).

6. Insert a putty knife (thickness of about 0.5mm) into the gap between the choke cover and the door frame.

7. Carefully slide choke cover away from drawer as far as possible.

8. Remove (6) screws from all (3) drawer Support Angles as shown in (Fig. D-2).

9. Unhook Drawer Support Angles from drawer, then remove.

10.Now, the door assembly is free and the Choke Cover can now be removed.

DRAWER SUPPORT ANGLE REMOVAL

1. Remove Drawer Assembly and Choke Cover as stated in "DRAWER ASSEMBLY AND CHOKE REMOVAL".

2. Remove (2) screws from right or left Latch Angle Assembly, then remove Angle assembly (Fig. D-4).

3. Separate Slide Rails by moving inside lever of Slide Rails. The Slide Rail will now separate by pulling straight forward and out (Fig. D-3).

4. At this point, you can replace either Latch Angle Assy or Latch Angles.

To reassemble, just reverse the above order.

After reassembly, do the following.

(A) Make sure that drawer sensing switch, secondary

interlock switch and monitor switch are operating properly. (Refer to chapter "Test Procedures".)

(B) An approved microwave survey meter should be

used to assure compliance with proper microwave radiation emission limitation standards.

After any servicing, make sure of the following :

1. Drawer latch heads smoothly catch latch hook through latch holes and that latch head goes through center of latch hole.

2. Deviation of door alignment from horizontal line of cavity face plate is to be less than 1.0mm.

3. Drawer is positioned with its face pressed toward cavity face plate.

4. Reassemble the unit and check for microwave leakage around drawer with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.)

Note: The drawer on a microwave oven is designed to

act as an electronic seal preventing the leakage of microwave energy from oven cavity during cook cycle. This function does not require that door be air-tight, moisture (condensation)-tight or light-tight. Therefore, occasional appearance of moisture, light or sensing of gentle warm air movement around oven drawer is not abnormal and do not of themselves indicate a leakage of microwave energy from oven cavity.

DRAWER/SLIDE RAIL REMOVAL

Fig. D-1

Fig. D-2

Fig. D-3

Fig. D-4

NOTE:

To remove only the

Microwave Drawer, follow steps

1, 2, 5, 8, 9 & 10

as instructed under

"DRAWER ASSEMBLY AND

CHOKE REMOVAL".

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OVEN DOOR ASSEMBLY REMOVAL

1. Disconnect the power supply cord.

2. Open the door to the fully opened position (Fig. O-1).

3. Pull the lock located on both hinge supports up and engage in the hook of the hinge levers. You may have to apply a little downward pressure on the door to pull the locks fully over the hooks (Fig. O-2).

4. Grab the door by the sides, pull the bottom of the door up and toward you to disengage the hinge supports. Keep pulling the bottom of the door toward you while rotating the top of the door toward the range to completely disengage the hinge levers (Fig. O-3).

5. Proceed in reverse to reinstall the door.

6. Make sure the hinge supports are fully engaged before unlocking the hinge levers.

OVEN DOOR RECEPTACLE HINGE AND HINGECOVER REPLACEMENT

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Remove (2) screws from Hinge Cover (Fig. O-4)

4. Remove Hinge Receptacle.

5 Proceed in reverse to reinstall the Hinge Receptacle and Hinge Cover.

OVEN DOOR REMOVAL

Fig. O-1

Fig. O-2

Fig. O-3

Recepticle Hinge

Hinge Cover

Fig. O-4

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OVEN BAKE ELEMENT REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Disconnect the wires by removing (2) nuts from element (Fig. O-5)

4. Remove the (2) screws holding the element from inside the oven (Fig. O-6).

5. Pull the Element into the oven.

6. Proceed in reverse to reinstall the Bake Element.

OVEN BROIL ELEMENT REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Disconnect the wires by removing (2) nuts from element (Fig. O-7)

4. Remove the (2) screws holding the element from inside the oven (Fig. O-8).

5. Pull the Element into the oven.

6. Proceed in reverse to reinstall the Broil Element.

Fig. O-5

Fig. O-7

THERMISTOR REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Unhook rear Molex wiring from Thermistor (Fig. O-9)

4. Remove tape from Thermistor rear hole.

5. Remove the (2) screws holding the Thermistor from inside the oven (Fig. O-10).

6. Pull the Thermistor into the oven.

7. Proceed in reverse to reinstall the Thermistor.

Fig. O-6

Fig. O-8

Fig. O-9

Fig. O-10

45

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BLOWER MOTOR REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Unhook all wiring from Blower Motor (Fig. O-11)

4. Remove tape from Thermistor rear hole.

5. Remove the (2) screws holding the Blower Motor to the Rear Plate.

6. The Blower Motor is now free.

7. Proceed in reverse to reinstall the Blower Motor.

Fig. O-11

LOCK MOTOR REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. Unhook all wiring from Lock Motor (Fig. O-12).

4. Remove the (2) screws holding the Lock Motor to the Rear Plate.

5. Pull Lock Motor from Lock Motor Shaft.

6. The Lock Motor is now free.

7. Proceed in reverse to reinstall the Thermistor.

Fig. O-12

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COOK TOP RADIANT HEATERS/HOT SURFACE INDICATOR REMOVAL

1. Disconnect the power supply cord.

2. Refer to the disassembly instructions found on Pages 38 - 40.

3. After Cook Top Assembly is free, turn upside down (glass side down) on a protective surface to prevent scratching (Fig. O-13).

4. Remove the (10) screws from Bottom Plate and place to the side.

5. Remove Heater Protect Cover (Fig. O-14).

6. Remove necessary spring strap from Radiant Element.

7. Unhook Radiant Element or Hot Surface Indicator wiring.

8. The Radiant Elements are now free.

9. Proceed in reverse to reinstall the Radiant Elements and/or Hot Surface Indicator.

Fig. O-13

Fig. O-14

47

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CONTROL PANEL WIRING DIAGRAM

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48

KB-3300JS KB-3300JK KB-3300JW

COOK TOP WIRING DIAGRAM

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49

KB-3300JS KB-3300JK KB-3300JW

MICROWAVE DRAWER WIRING DIAGRAM

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E

D

R

E

D

R

E

D

O

R

G

R

E

D

(

J

S

T

V

L

P

-

0

2

V

)

R

E

D

R

E

D

2

1

W

H

T

O

R

G

R

E

D

8

7

B

L

K

R

E

D

Y

L

W

B

L

K

B

R

N

4

2

1

3

5

6

L

2

R

E

L

A

Y

U

L

T

A

P

E

U

L

T

A

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E

50

KB-3300JS KB-3300JK KB-3300JW

MICROWAVE DRAWER WIRING DIAGRAM

R

E

D

R

E

D

O

R

G

O

R

G

B

L

K

R

E

D

B

R

N

Y

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T

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-

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V

)

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T

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P

S

W

(

N

.

O

.

)

S

T

O

P

S

W

(

C

O

M

)

2

1

(

J

S

T

X

M

P

-

0

7

V

)

T

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V

E

N

H

A

R

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S

D

O

R

S

W

(

N

.

O

.

)

D

O

R

S

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(

C

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)

1

2

3

4

5

6

7

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.

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)

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C

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)

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)

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)

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1

2

1

0

9

8

1

2

3

4

5

6

7

W

H

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G

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Y

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R

Y

G

R

Y

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Y

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R

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W

H

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(

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R

A

W

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R

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R

N

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2

1

8

7

4

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1

3

5

6

1

2

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9

T

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V

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A

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(

J

S

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V

)

7

4

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3

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6

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1

4

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8

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6

T

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8

9

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4

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(

J

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-

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5

V

-

1

)

U

L

T

A

P

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51

KB-3300JS KB-3300JK KB-3300JW

RANGE POWER SUPPLY WIRING DIAGRAM

S

H

R

I

N

K

T

U

B

E

N

O

.

0

7

N

O

.

0

8

(

V

E

R

S

A

F

I

T

V

2

)

B

L

K

R

E

D

(

L

E

F

T

)

(

L

1

)

(

R

I

G

H

T

)

(

L

2

)

B

L

K

R

E

D

B

L

K

B

L

K

B

L

K

R

E

D

R

E

D

R

E

D

6

5

3

1

2

4

I

N

F

I

N

I

T

E

S

W

I

T

C

H

A

R

N

E

S

B

LLK

K

B

LLK

K

B

LLK

K

R

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D

R

EED

D

R

EED

D

T

E

R

M

I

N

A

L

(

J

S

T

V

L

P

-

6

V

)

1

U

L

T

A

P

E

52

KB-3300JS KB-3300JK KB-3300JW

RANGE WIRING DIAGRAM

(

J

S

T

V

L

R

-

0

2

V

)

T

O

D

R

A

W

E

R

H

A

R

N

E

S

R

E

D

R

E

D

2

1

R

E

D

R

E

D

E

X

T

O

D

R

A

W

E

R

H

A

R

N

E

S

T

O

D

R

A

W

E

R

H

A

R

N

E

S

Y

L

W

B

R

N

R

E

D

B

L

K

O

R

G

O

R

G

W

H

T

O

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G

R

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D

B

L

K

R

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D

Y

L

W

B

L

K

B

R

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W

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T

R

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D

R

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D

W

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B

L

K

R

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D

R

E

D

B

L

K

W

H

T

(

L

E

F

T

)

(

R

I

G

H

T

)

(

C

E

N

T

E

R

)

(

N

)

(

L

2

)

(

L

1

)

T

E

R

M

I

N

A

L

B

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N

B

R

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Y

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W

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T

W

H

T

W

H

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G

R

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D

W

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T

B

L

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O

R

G

O

R

G

R

E

D

R

E

D

R

E

D

B

L

K

L

O

C

K

L

O

C

K

M

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T

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R

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(

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M

)

(

N

.

O

.

)

(

N

.

C

.

)

(

L

2

)

(

L

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)

(

N

)

L

2

N

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1

(

J

S

T

V

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R

-

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V

)

1

2

3

T

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R

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W

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R

H

A

R

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(

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S

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)

B

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R

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A

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C

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T

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U

T

L

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C

K

M

O

T

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R

8

1

2

3

4

5

6

7

T

O

C

P

U

(

J

S

T

X

M

R

-

0

7

V

)

L

O

C

K

M

O

T

O

R

S

W

(

C

O

M

)

L

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M

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)

D

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R

S

W

D

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R

7

6

5

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3

2

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D

O

R

S

W

(

J

S

T

V

L

R

-

0

6

V

)

1

2

(

M

O

L

E

X

5

9

-

0

2

P

)

T

H

E

R

M

I

S

T

O

R

(

J

S

T

V

L

R

-

8

V

)

T

O

D

R

A

W

E

R

H

A

R

N

E

S

(

J

S

T

X

M

R

-

0

7

V

)

T

O

C

P

U

(

N

.

O

.

)

(

C

O

M

.

)

3

1

2

6

5

3

1

2

4

7

8

7

4

2

1

3

5

6

B

O

T

O

M

E

X

T

O

P

H

E

A

T

E

R

O

V

E

N

B

R

N

B

L

K

W

H

T

6

4

5

B

R

N

W

H

T

B

L

K

2

3

1

V

O

L

T

A

G

E

H

E

A

T

E

R

S

W

I

T

C

H

(

C

O

M

)

(

N

.

O

.

)

(

N

.

C

.

)

U

L

T

A

P

E

4

5

6

V

O

L

T

A

G

E

S

W

(

C

O

M

)

V

O

L

T

A

G

E

S

W

(

N

.

C

.

)

V

O

L

T

A

G

E

S

W

(

N

.

O

.

)

S

W

I

T

C

H

M

O

T

O

R

L

A

M

P

U

L

T

A

P

E

B

L

K

R

E

D

E

X

E

X

C

U

T

-

O

U

T

O

V

E

N

T

H

E

R

M

A

L

C

R

O

S

F

L

O

W

F

A

N

M

O

T

O

R

Y

L

W

H

T

E

X

E

X

W

H

T

U

L

T

A

P

E

U

L

T

A

P

E

53

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Figure S-2. Power Unit Circuit

A-6

A-4

A-2

A-1

RTRNPA0 06WRZZ

VRS1

B-3

B-1

60Hz

FUSE

2.5A

C1

C2

2200uF/ 35V

D1 -- D 4

1N4002L x4

CN-A

CN-B

+

E-5

D5

E-4

RY2

R1

1.5K 1/ 4W

ZD1

Q1

D6

RY1

D7

RY3

D8

RY4

D9

RY5

C-1

D10

RY6

C-3

D11

RY7

C-5

D12

RY8

C-7

E-3

E-6

D15

H-13

H-14

E-2

E-1

H-1

H-3

H-2

H-4

H-5

H-6

H-7

H-8

H-9

H-10

H-11

H-12

Transfo rmer

120V

POWER TRANSFO RMER

OL,SM

(DRAWER COM.)

(OVEN C OM.)

TOP H.

BOTTOM HEATER RELAY.

(DRAWER )

( OVEN)

FM

OL

(OVEN)

DOOR LOCK MOTOR

0.1uF/5 0V

<NOTE>

: IF NO T SPECIFIED, 1 SS270A

10G471K

HZ20-1

DU18D1- 1P(M)-R-S

R2

150

1W

FTR-F3A A024E

CN-C

CN-E

CN-H

RY5 -- 8

KTC1027

DU18D1- 1P(M)-R

150

1W

150

1W

R3

R4

E-7

H-15

HEATER COMMON.

D16

54

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Figure S-3. Control Unit Circuit

M10

Y4B Y5A Y5B VDD VSS LED

VREF

DRDY

MOSI

MISO

SCK

/RST

VDD

VSS

XT2

XT1

RXTXWS

SMP

Y3A

Y2A

Y1A

Y0A

VDD

VSS

X0

X1

X2

X3

X4

X5X6X7

Y0B

VDD

VSS

VDD

Y1B

Y2B

Y3B

40

39

38

37

36

35

34

33

32

41 42

44

123456789

10

313029282726252423

22 21 20 19 18 17 16 15 14 13 12

11

R70 R71

10K

100

R72

R75

R73

R74

C78

C77

C76

C75

220K x 4

R81

4700PF x 4

R82

R83

R84

R80

R85

R86

R87

1K

IC-4

5

10

15

20

30

35

40

45

55

60

25

50

C2

C1

C0

C4 C3 C2

5

10

15

20

30

35

40

45

55

60

25

50

R33

R30

R31

R32

10K

4.7K

CF3

4MHz

R22

R23

R24

R25

10K

4.7K

CF2

4MHz

C14

R26

R27

R28

R29

4.7K

1K

987654321

VCC

P30 (23Pin)

P31 (22Pin)

P32 (21Pin)

P33 (20Pin)

RESET (8Pin)

AN1 (5Pin)

VSS

CN-X(IC-1)

CN-Y(IC-2)

CN-Z(IC-3)

C72

C74

C70

C71

R19

VS

(0V)

VC(+5V)

R20

4.7K

R21

C15

P04

P05

P23 P22 P21 P20 P17 P16 P15 P14 P13 P12 P11

P07

P10

P06

5

10

15

20

30

35

40

45

55

60

25

50

COM0

COM1

COM3

COM1 COM0

+

-

C43

8

4

C42

C41

C40

R40

R42

R44

R43

R41

1.8KF

3.57KD

3.32KD

IC-5

+

-

F-2

F-3

430

1W

KIA358

D40

C44

C45

D41

R50

10K

47K

R45

R46

R48

R47

R49

620K

300K

150KF

75KF

37.4KF

P01

P02

P03

P04

P00

R7

R5

R6

2K

ZD2

HZU16B1

C4

Q3

C5

10uF/35V

C11

R14

4.7K

ZD4

HZU3.6B2

R11

4.7K

C10

Q2

Q6

Q5

I

C

O

KIA78L05BP

D22D21

R16

30

Q7

LD1 LD2

4.7K

R90

R91

R93

4.7K

R17

4.7K

R18

4 3 2 1

VSS A2 A1 A0

5 6 7 8

SDA SCL

TEST

VCC

P56

TXD1

RXD1

R76

R77

R78

R79

1K

K-2

K-1

K-3

F-1

M-1

M-3

K-5

R92

4.7K

K-8

K-9

K10

K11

K12

K-7

K13

K14

4.7K

R38

R37

4.7K

47K

R35

C30

4.7K

R56

C52

M-4

M-5

OVEN

DOOR

SW.

4.7K

10K

R58

C51

R55 R57

SP

P62

P61

R36

47K

IC-6

C60

C63

R60

R61

R65

R64

4.7K

10K

D19

D20

+

Q22

C20

C21

Q20

C73

AN1

AN5

CF1

4MHz

1

2

3

7

5

6

G-6

G-1

G-3

G-4

G-5

G-2

4.7K

R13

4.7K

R12

P53

P05

P51

P57

C3

SEG23

COM2

C1

COM2

SEG22

/SS

Y4A

43

SYNC

IC-8

KID65004AF

10uF/35V

+

101112

13

14

15

16

COM 9

O-7

O-6

O-5

O-4

O-3

O-2

O-1

GND

1

I-7

I-6

I-5

I-4

I-3

I-2

I-1

2

345

678

101112

13

14

15

16

9

1

2

345

678

K-6

IC-7 KID65004AF

VR

MICRO

47K

C5

C4

S24

R69 R68

3.3K

1.5K

C3

R52

10uF/35V

C8

+

KIA78L05BP

Q4

O

C

I

C7

C6

10uF/35V

+

R8

1.5KF

OVEN

THERMISTOR

KRA117S

10uF/35V

1W

C12

(RY2)

D.COM(RY1)

O.COM(RY3)

TOP.H(RY4)

D.FM(RY5)

O.FM(RY6)

O.OL(RY7)

O.LM(RY8)

CN-K

M-2

CN-M

CN-G

WH-A

KTC1027

10K

AN2

R66

4.7K

C62

DOOR

LOCK

MOTOR

SWITCH

LOCK

UNLOCK

M-8

M-9

M12

M11

K-4

M-7

M-6

KRC101S

COM0

SEG23

COM1

K15

Q24

KRC101S

(RY8)

AT24C16N

200 1W x2

390

10K

1

4.7K

R34

0.01u/50V

IC-1

P24

P25

P26

P27

VL3

COM0

COM1

COM2

COM3

P30

SCLK2

TXD2

RXD2

P34

P35

P36

P03

P02

P01

P00

P57

P56

TXD1

RXD1

P53

P52

P51

INT0

AVSS

VREF

AN7

AN6

AN5

AN4

AN3

AN2

AN1

AN0

CNVSS

RESET

P62

P61

VSS

XIN

XOUT

VCC

P60

P37

C13

GND

INT

AH SENSOR

CN-F

360KF

R51

DRAWER

DOOR

SW.

(CLOSE)

COM

Q21

KRA224S

P06

P07

P10

P11

P12

P13

P14

<NOTE>

BOTTOM

HEATER

RELAY

DOOR

LOCK

MOTOR

KRA102S

Q23

P15

P16

P17

P20

P21

AN3

GND

I-7

I-6

I-5

I-4

I-3

I-2

I-1

COM

O-7

O-6

O-5

O-4

O-3

O-2

O-1

IF NOT SPECIFIED

: 1/10W J%(CHIP)

: 0.1u/50V(CHIP)

: KDS160(CHIP)

CF4

16MHz

R67

LD3

LD4 LD5

LD6

KTC1027

R15

4.7K

KTC3875

RESET

IC-2

LCD1

RLCDSA136DRZZ

LCD2

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG0

SEG1

SEG2

SEG3

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG20

SEG21

SEG22

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

SEG4

SEG5

SEG6

SEG7

SEG8

SEG9

SEG10

SEG11

SEG12

SEG13

SEG14

SEG15

SEG16

SEG17

SEG18

SEG19

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16

S17

S18

S19

S20

S21

S22

S23

RLCDSA137DRZZ

S23

S22

S21

S20

S19

S18

S17

S16

S15

S14

S13

S12

S11

S10

S9

S8

S7

S6

S5

S4

S3

S2

S1

S0

IC-3

SEG20

SEG21

SEG22

SEG23

VL3

COM0

COM1

COM2

COM3

P30

P31

P32

P33

P34

P35

P36

SEG20

SEG21

SEG22

SEG23

VL3

COM0

COM1

COM2

COM3

P30

P31

P32

P33

P34

P35

P36

SEG3

SEG2

SEG1

SEG0

P57

SCLK1

TXD1

RXD1

P53

P52

P51

INT0

AVSS

VREF

AN7

AN6

SEG3

SEG2

SEG1

SEG0

P57

SCLK1

TXD1

RXD1

P53

P52

P51

INT0

AVSS

VREF

AN7

AN6

AN5

AN4

AN3

AN2

AN1

AN0

CNVSS

RESET

P62

P61

VSS

XIN

XOUT

VCC

P60

P37

AN5

AN4

AN3

AN2

AN1

AN0

CNVSS

RESET

P62

P61

VSS

XIN

XOUT

VCC

P60

P37

CNVSS (7Pn)i

VCC

BUSY

SCLK

TXD

RXD

RESET

VPPCEVSS

HEATER

COMMON

55

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Figure S-4. Printed Wiring Board of Power Unit

QPWBFA844DRZZ

FA844

S047081

CNE

1

7

1

6

RY4

RY2

RY6

RY7

RY8

VRS1

D13

CNA

CNJ

1

6

RY5

RY1

D9 D10

D8

R2

R3

R1

C1

C2

D16

D17

D15

RY11

RY10

D14

D18

D4

D1

D3

D2

ZD1

15

CNH

R4

3

CNB

FUSE 2.5A

1

D11 D12

D7

Q1

E

C

B

1

5

7

CNC

RY3

RY9

CND

D5

D6

3

1

2

DIP

56

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

Figure S-5. Printed Wiring Board of Control Unit

E

16

BC

Q7

S1

S23

C1

C4

S24

R40

C4

C5

C3

C0

C6

C3

C5

C8

Q4Q3

ICO ICO

R8

S0

WHA

6

4

2

1

3

FA843

S047071

5

CF2

CNY

CNN

CNM

CNX

CF1

SP

5141

8

91

2

LCD1

LCD2

R5

Q2

1

9

CF3

C90

R100

CNF

LD10

82

6

1

3

15

CNK

CNZ

CNL

C21

BCE

R6

28

91

57

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

FA842

S03C183

FA842

S03C183

Bake START

STOP

CLEAR

Timed

Cook

Delay

Start

Oven

Light

Poer

Level

Sensor

Popcorn

MicroWarm

Sensor

Cook

Sensor

Reheat

Defrost

Reheat

(Control Lock)

Control

Lock

Stop

Clear

Timer

Clock

Setup

Custom

Help

START

Minute

Plus

(On)

Cooktop

warm

Timer

3Minut Plus

Speed Cook

Convection)

Self

Clean

Broil

123

456

78

0

9

Figure S-5. Printed Wiring Board of Keyboard Unit

58

KB-3300JS KB-3300JK KB-3300JW

CONTROL PANEL PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

1- 1 HPNLCB200MRF0 M Control panel mold 1 AS 1- 2 DPWBFB126MRU0 M Control unit 1 BY 1- 3 LHLD-B027MRF0 M PWB holder 1 AN 1- 4 XEPSD30P08XS0 M Screw : 3mm x 8mm 6 AA 1- 5 LANGQB064MRP0 M Key fixing angle 1 AN 1- 6 QSWTEB002MRE0 M Double control 1 AW 1- 7 QSWTEB003MRE0 M 2000W control 1 AR 1- 8 QSWTEB004MRE0 M 1200W control 2 AR 1- 9 FW-VZB240MRE0 M C/P harness 1 BA 1-10 XBTSD40P06000 M Screw : 8mm x 6mm 8 AA 1-11 XCTSD40P08000 M Screw : 8mm x 8mm 4 AA 1-12 RLMP-B005MRE0 M Indicator lamp 2 AF 1-13 XOTWW40P10000 M Screw 6 AA 1-13 XCTSF50P12000 M Optional oversized screw 6 AA 1-14 PSEL-B001MRE0 M Gasket, dark gray 1 AN 1-15 FUNTKB429MRK0 M Glass key unit [KB3300JS] [KB3300JK] 1 BP 1-15 FUNTKB433MRK0 M Glass key unit [KB3300JW] 1 BP 1-16 HDECQB001MRR0 M Glass key deco [KB3300JS] 1 AK 1-16 HDECQB056MRR0 M Glass key deco [KB3300JK] 1 AK 1-16 HDECQB057MRR0 M Glass key deco [KB3300JW] 1 AK 1-17 LRTNPB001MRF0 M Retainer [KB3300JS] [KB3300JK] 4 AD 1-17 LRTNPB002MRF0 M Retainer [KB3300JW] 4 AD 1-18 FKNBKB005MRK0 M Control knob [KB3300JS] [KB3300JK] 4 AD 1-18 FKNBKB006MRK0 M Control knob [KB3300JW] 4 AD 1-19 GWAKPB202MRF0 M C/P frame [KB3300JS] [KB3300JK] 1 AR 1-19 GWAKPB207MRF0 M C/P frame [KB3300JW] 1 AR 1-20 HDEC-B007MRF0 M C/P support R [KB3300JS] [KB3300JK] 1 AF 1-20 HDEC-B010MRF0 M C/P support R [KB3300JW] 1 AF 1-21 HDEC-B008MRF0 M C/P support L [KB3300JS] [KB3300JK] 1 AF 1-21 HDEC-B011MRF0 M C/P support L [KB3300JW] 1 AF 1-22 PLNS-B003MRE0 M Lens 2 AA

59

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

CONTROL PANEL

CONTROL PANEL HARNESS

Actual wire harness may be different from illustration.

1-9

1-15

1-5

1-3

1-8

1-7

1-8

1-6

1-12

1-2

1-12

1-20

1-19

1-21

1-13

1-11

1-4

1-18

1-17

1-16

1-1

1-22

1-13

1-10

1-14

1-13

60

KB-3300JS KB-3300JK KB-3300JW

COOK TOP PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

2- 1 FW-VZB232MRE0 M Cook top harness 1 BD 2- 2 RLMP-B001MRE0 M Surface indicator 1 AU 2- 3 RHET-B001MRE0 M Radiant heater (2000 w) 1 BA 2- 4 RHET-B002MRE0 M Radiant heater (1200 w) 2 BA 2- 5 RHET-B003MRE0 M Radiant heater (Dual) 1 BA 2- 6 FANG-B001MRY0 M Cook top glass assy [KB3300JS] [KB3300JK] 1 CA 2- 6 FANG-B007MRY0 M Cook top glass assy [KB3300JW] 1 CA 2- 7 PFPF-B006MRE0 M Heat protect 1 AH 2- 8 PCOVPB122MRP0 M Heat protect cover 1 BD 2- 9 MLEVPB018MRE0 M 6" spring strap 2 AH 2-10 MLEVPB020MRE0 M 8" spring strap 1 AH 2-11 MLEVPB021MRE0 M 9" spring strap 1 AH 2-12 XOTSE40P12000 M Screw 6 AA 2-13 LX-CZB027MRE0 M Shoulder screw 4 AA 2-14 HDEC-B014MRF0 M Right end cap [KB3300JS] [KB3300JK] 1 AK 2-14 HDEC-B016MRF0 M Right end cap [KB3300JW] 1 AK 2-15 HDEC-B015MRF0 M Left end cap [KB3300JS] [KB3300JK] 1 AK 2-15 HDEC-B017MRF0 M Left end cap [KB3300JW] 1 AK

*

61

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

2-6

2-2

2-4

2-5

2-11

2-3

2-9

2-4

2-9

2-10

2-7

2-8

2-13

2-12

Actual wire harness may be different from illustration.

2-1

2-12

2-13

2-15

2-14

COOK TOP

COOK TOP HARNESS

62

KB-3300JS KB-3300JK KB-3300JW

MICROWAVE DRAWER PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

3- 1 RTRN-B083MRE0 M Transformer 1 BE 3- 2 RV-MZA288WRE0 M Magnetron 1 BK 3- 3 FDTCTA234WRKZ M Sensor assy 1 AP 3- 4 FFS-BA018/KIT M Monitor switch (V-16G-2C25) with fuse (20A) assembly 1 AF 3- 5 RTRNPA006WRZZ M Touch control transformer 1 AP 3- 6 TCAUAB050MRR0 M Monitor caution label 2 AD 3- 7 LHLD-B028MRF0 M Power supply unit holder 1 AH 3- 8 DPWBFB127MRU0 M Power supply 2 BD 3- 9 LANGTB073MRP0 M Oven lamp angle 1 AF 3-10 LX-CZ0052WRE0 M Screw/washer 6 AA 3-11 GCABDB001MRP0 M Back plate 1 BB 3-12 PDUC-B141MRP0 M Mag duct 1 AE 3-13 PDUC-B142MRP0 M Sensor duct 1 AK 3-14 PDUC-B147MRP0 M Exhaust duct A 1 AK 3-15 PDUC-B148MRP0 M Exhaust duct B 1 AF 3-16 FCOVPB002MRY0 M Stir cover assy 1 AM 3-17 PCLICB003MRE0 M Canoe clip 3 AB 3-18 MSLIFB001/KIT M Slide rail 3 AU 3-19 LANGTB074MRP0 M Door support angle A 2 AK 3-20 LANGTB075MRP0 M Door support angle B 1 AK 3-21 GCOVHB051MRF0 M Door support cover 2 AB 3-22 PSKR-B018MRP0 M Magnetron air guide 1 AC 3-23 PFILWB005MRP0 M Lamp filter 1 AB 3-24 LANGTB076MRP0 M Partition angle 1 AK 3-25 FC-QZB048MRK0 M HVC assy 1 AP 3-26 LBNDKB007MRP0 M HVC band 1 AB 3-27 LX-BZA041WRE0 M Screw 6 AA 3-28 XOTSE40P12000 M Screw 64 AA 3-29 LANGTB086MRP0 M Partition angle L 1 AK 3-30 LANGQA581WRPZ M Noise unit angle 1 AD 3-31 XOTSE40P16000 M Screw 4 AA 3-32 XOTSD40P12RV0 M Power unit assy screw 4 AA 3-33 DDORFB091MRK0A M Door assy [KB3300JS] 1 BD 3-33 DDORFB094MRK0 M Door assy [KB3300JK] 1 BD 3-33 DDORFB095MRK0 M Door assy [KB3300JW] 1 BD 3-34 PSHEPB184MRE0 M Sealer film 1 AQ 3-35 FFAN-B008MRK0 M Stirrer fan assy 1 AK 3-36 FANGTB010MRK0 M Latch angle assy R 1 AH 3-37 FANGTB011MRK0 M Latch angle assy L 1 AH 3-38 LANGTB093MRP0 M Cooktop stay L 1 AY 3-39 LANGTB094MRP0 M Cooktop stay R 1 AY 3-40 RRLYDA012DRZZ M Heater relay A 2 AH 3-41 LX-NZB006MRE0 M Cap nut 6 AA 3-42 XHTSD40P08RV0 M Screw 4 AA 3-43 TCAUKB001MRR0 M Stirrer cover cleaning label 1 AA 3-44 FMOTEA494WRKZ M Fan motor 1 AZ 3-45 LANGTB077MRP0 M Fan motor angle 1 AG 3-46 RTHM-A135WRZZ M Oven thermo 1 AD 3-47 FW-VZB245MRK0 M Harness assy 1 BE 3-48 PHOK-A079WRF0 M Latch hook R 1 AH 3-49 QSW-MA085WRE0 M Switch 1 AE 3-50 PHOK-A080WRF0 M Latch hook L 1 AF 3-51 MLEVPA214WRF0 M Switch lever L 1 AK 3-52 QSW-MA---WRE0 M Monitor switch - must replace by assy. (3-4) 1 AE 3-53 QSW-MA085WRE0 M Switch 1 AE 3-54 QSOCLB010MRE0 M Lamp socket 1 AG 3-55 FW-VZB246MRE0 M CPU harness 1 AX 3-56 FPWBFA380WRKZ M Noise filter unit 1 AM 3-57 RLMPTA071WRE0 M Oven lamp 1 AF 3-58 JHNDPB052MRM0 M Door handle [KB3300JS] 1 AS 3-58 JHNDPB054MRM0 M Door handle [KB3300JK] 1 AS 3-58 JHNDPB055MRM0 M Door handle [KB3300JW] 1 AS 3-59 FGLSPB002MRY0 M Oven tray assy 1 BK 3-60 GCOVHB050MRF0 M Choke cover 1 AM 3-61 LX-CZB027MRE0 M Shoulder screw 2 AA 3-62 RMOTDA261WRZZ M Stirrer motor 4 AH 3-63 TCAUHB009MRR0 M User caution label 1 AA

∆∆

∆

*

63

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

MICROWAVE DRAWER HARNESSESMICROWAVE DRAWER

Actual wire harness may be different from illustration.

3-55

3-47

3-39

3-3

3-12

3-18

3-36

3-57

3-54

3-9

3-2

3-19

3-37

3-19

3-16

3-35

3-43

3-63

3-23

3-20

3-17

3-18

3-10

3-8

3-7

3-29

3-5

3-53

3-52

3-50

3-51

3-49

3-48

3-40

3-22

3-1

3-15

3-24

3-25

3-26

3-62

3-44

3-45

3-30

3-56

3-46

3-11

3-14

3-21

3-60

3-34

3-59

3-33

3-58

3-13

3-18

3-31

3-28

3-32

3-42

3-28

3-32

3-41

3-42

3-41

3-28

3-61

3-28

3-27

3-28

3-27

3-42

3-28

3-32

3-28

3-61

3-28

3-10

3-28

3-10

3-28

3-6

3-38

3-4

64

KB-3300JS KB-3300JK KB-3300JW

OVEN PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

4- 1 PCUSGB050MRP0 M Thermal cushion 1 AG 4- 2 PCUSGB051MRP0 M Cross flow motor cushion 1 AG 4- 3 TINSEB401MRR0 M Tech sheet 1 AK

4- 4 PCOVPB136MRP0 M Heat cover 1 AK 4- 5 GLEGPB006MRE0 M Leveling screw 4 AE 4- 6 PFPF-B007MRE0 M Heat protect R 1 AW 4- 7 PFPF-B009MRE0 M Heat protect Top 1 AW 4- 8 FHNG-B052MRE0 M Receptacle hinge 2 AK 4- 9 PCOVPB131MRE0 M Hinge cover 2 AD 4-10 PPIPFB003MRE0 M Vent tube 1 AR 4-11 MROD-B008MRE0 M Latch rod 1 AM 4-12 LBSHZB001MRE0 M Bushing 1 AG 4-13 MSPRTB024MRE0 M Bushing spring 1 AA 4-14 LANGTB079MRP0 M Oven spring 2 AE 4-15 PCOVPB127MRE0 M Oven light cover 1 AK 4-16 QSOCLB012MRE0 M Oven light housing 1 AE 4-17 LANG-B018MRE0 M Oven light receptacle 1 AH 4-18 LBNDKB011MRE0 M Light cover retainer 1 AB 4-19 FMOTEB051MRE0 M Blower motor 1 BF 4-20 QSW-PB002MRE0 M Light switch 1 AF 4-21 FH-HZB001MRE0 M Thermister 1 AT 4-22 RLMPTB001MRE0 M Oven lamp 1 AE 4-23 LANGQB065MRP0 M Power cord angle 1 AE 4-24 PCOVPB130MRP0 M Power cover 1 AG

4-25 FSW-MB039MRK0 M Select switch assy 1 AS

4-26 LANGKA760WRP0 M Switch lever 1 AG

4-27 XOTSE40P12000 M Screw 37 AA 4-28 TCAUAB048MRR0 M DHHS caution label 1 AB 4-29 GCABDB003MRP0 M Rear plate 1 BE 4-30 QCNCYB001MRE0 M Terminal block kit 1 AK 4-31 FANG-B003MRE0 M Latch motor assy 1 AZ 4-32 LANGQB066MRP0 M Ground plate 1 AD 4-33 LX-BZA041WRE0 M Screw 4 AA 4-34 TCAUAB057MRR0 M Anti-tip label 1 AA 4-35 LX-CZB029MRE0 M Terminal screws 2 AA 4-36 LBNDKB012MRP0 M Element support hanger 2 AD 4-37 RHET-B006MRE0 M Top heater (3000 W) 1 AX 4-38 RHET-B007MRE0 M Bottom heater (2600 W) 1 AW 4-39 XOTWW40P10000 M Screw 8 AA 4-40 FW-VZB247MRE0 M Power supply harness 1 BB 4-41 LANGTB092MRP0 M Motor blower angle 1 AH 4-42 DW-VZB180MRK0 M Harness assy 1 BE 4-43 QFS-TA038WRE0 M Oven thermo 1 AK 4-44 LX-NZB007MRE0 M Terminal block nut 6 AA 4-45 LX-CZB028MRE0 M Door hinge screw 4 AA 4-46 PCOVWB001MRE0 M Insulation tube 1 AC

4-47 GCABUB135MRP0 M Side cabinet R [KB3300JS] [KB3300JK] 1 BD

4-47 GCABUB138MRP0 M Side cabinet R [KB3300JW] 1 BD 4-48 GCABUB136MRP0 M Side cabinet L [KB3300JS] [KB3300JK] 1 BD 4-48 GCABUB139MRP0 M Side cabinet L [KB3300JW] 1 BD

65

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

4-42

Actual wire harness may be different from illustration.

4-40

4-47

4-26

4-28

4-31

4-17

4-10

4-2

4-24

4-34

4-1

4-3

4-23

4-4

4-25

4-19

4-30

4-41

4-14

4-21

4-48

4-29

4-43

4-11

4-13

4-12

4-46

4-20

4-16

4-22

4-15

4-18

4-8

4-9

4-5

4-9

4-8

4-38

4-37

4-36

4-44

4-27

4

-2

7

4

-3

5

4

-2

7

4

-3

9

4-33

4-27

4

-2

7

4-39

4

-4

5

4

-4

5

4

-3

9

4

-3

9

4

-3

9

4

-3

9

4

-3

9

4-6

4-7

OVEN UNIT HARNESSES

OVEN UNIT

66

KB-3300JS KB-3300JK KB-3300JW

OVEN DOOR PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

5- 1 DDORFB092MRK0 M Door assy [KB3300JS] 1 BY

5- 1 DDORFB096MRK0 M Door assy [KB3300JK] 1 BY

5- 1 DDORFB097MRK0 M Door assy [KB3300JW] 1 BY

5- 2 PPACGB021MRE0 M Oven door seal gasket 1 AW

5- 3 JHNDPB053MRF0 M Door handle [KB3300JS] 1 BB

5- 3 JHNDPB056MRF0 M Door handle [KB3300JK] 1 BB

5- 3 JHNDPB057MRF0 M Door handle [KB3300JW] 1 BB 5- 4 XOTWW40P12000 M Screw 6 AA

67

KB-3300JS KB-3300JK KB-3300JW

6

45

1

2

3

6

45

1

2

3

A

B

C

D

E

F

G

H

A

B

C

D

E

F

G

H

5-1

5-3

5-2

5-5

5-4

OVEN DOOR

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PACKING PARTS LIST

Note: The parts marked “

∆∆

∆” may cause undue microwave exposure.

The parts marked “*” are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION

REF. NO. PART NO. § DESCRIPTION Q'TY CODE

6- 1 UAMI-B013MRM0 M Rack 2 AV

6- 2 PSLD-B001MRE0 M Broiler pan insert 1 AW

6- 3 PSRAHB001MRE0 M Broiler pan 1 AW

6- 4 TINSEB389MRK0 M Operation manual 1 AM

6- 5 TINSEB390MRR0 M Installation sheet 1 AG

6- 6 FAMI-B007MRK0 M Extended rack assy 1 BM

6- 7 FANGKB024MRK0A M Anti-tip kit 1 AV

6- 8 TINSEB392MRR0 M Anti-tip template 1 AD

6- 9 FANG-B004MRT0 M Back splash [KB3300JS] 1 BQ

6- 9 FANG-B005MRT0A M Back splash [KB3300JK] 1 BQ

6- 9 FANG-B006MRT0A M Back splash [KB3300JW] 1 BQ

69

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WOOD TOP FRAME

SUPPORT CORNERS

EXTENDED RACK ASSY *

BOILER PAN

INSTALLION MANUAL

OPERATION MANUAL

ANTI-TIP TEMPLATE

ANTI-TIP KIT

PACKING CASE

Non-replaceable items

BACK SPLASH HOLDER

WOOD BOTTOM FRAME

BACK SPLASH

OVEN RACK x 2

6-9

6-7

6-1

6-8

6-4

6-5

6-6

6-2

BOILER INSERT

6-3

*

Not included in early models.

PACKING

70

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2004 SHARP CORP. (4R2.00E) Printed in U.S.A

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.