Microwave Oven NN-SD291S NN-SD291W -...

© Panasonic Home Appliances Microwave Oven(Shanghai) Co., Ltd. 2011.

NN-SD291SNN-SD291WCPH(CANADA)

Microwave Oven

Please file and use this manual together with the service manual for Model NN-S262SF (OrderNo.SIMMC0203005C1)

ORDER NO.PHAMOS1106067AEE2

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NN-SD291S / NN-SD291W

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1 SCHEMATIC DIAGRAM 5 2 DESCRIPTION OF OPERATING SEQUENCE 6

2.1. Variable power cooking control 6

2.2. Inverter power supply circuit 6

2.3. Inverter defrost 6

2.4. Sensor cooking 6

2.5. Sensor reheat 7

3 CAUTIONS TO BE OBSERVED WHEN TROUBLESHOOTING 8 3.1. Check the grounding 8

3.2. Inverter warnings 8

3.3. Part replacement. 9

3.4. When the 20A fuse is blown due to the malfunction of the

monitor interlock switch: 9

3.5. Avoid inserting nails, wire etc. through any holes in the

unit during operation. 9

3.6. Verification after repair 9

3.7. Sharp edges 9

4 COMPONENT TEST PROCEDURE 10 4.1. Primary, Secondary Interlock Switch & Power Relay RY1

10

4.2. Monitor Switch 10

4.3. Magnetron 10

4.4. Inverter power supply (U) 11

4.5. Humidity sensor 11

5 MEASUREMENTS AND ADJUSTMENTS 12

5.1. Adjustment of primary interlock switch, secondary interlock

switch and monitor switch. 12

5.2. Measurement of microwave output 12

6 PROCEDURE FOR MEASURING MICROWAVE ENERGYLEAKAGE 13 6.1. Equipment 13

6.2. Procedure for measuring radiation leakage 13

6.3. Record keeping and notification after measurement 13

6.4. At least once a year, have the radiation monitor checked

for calibration by its manufacturer. 14

7 TROUBLESHOOTING GUIDE 15 7.1. Troubleshooting of inverter circuit (U) and magnetron 15

7.2. SIMPLE WAY OF H.V. INVERTER/MAGNETRON

TROUBLESHOOTING 16

7.3. H.V.INVERTER BOARD MAIN PARTS LIST

(F606Y8X00AP) 16

8 EXPLODED VIEW AND PARTS LIST 17 8.1. EXPLODED VIEW 17

8.2. PARTS LIST 18

8.3. DOOR ASSEMBLY 20

8.4. ESCUTCHEON BASE ASSEMBLY 21

8.5. PACKING AND ACCESSORIES 22

8.6. WIRING MATERIALS 23

9 DIGITAL PROGRAMMER CIRCUIT 24 9.1. SCHEMATIC DIAGRAM 24

9.2. PARTS LIST 26

CONTENTS Page Page

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1 SCHEMATIC DIAGRAM

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2.1. Variable power cookingcontrol

High Voltage Inverter Power Supply (U) controls output powerby the signal from Digital Programmer Circuit (DPC). Powerrelay always stay on, but PWM (Pulse Width Modulation) signalcontrols microwave output power.NOTE:

The ON/OFF time ratio does not correspond with thepercentage of microwave power since approximately 2seconds are required for heating of magnetronfilament.

Variable Power CookingPOWER SETTING OUTPUT

POWER(%)APPROX.

MANUAL MICROWAVEDUTY

ON(SEC) OFF(SEC)HIGH P10 100% 22 0

P9 90% 22 0P8 80% 22 0

MEDIUM-HIGH P7 70% 22 0MEDIUM P6 60% 22 0

P5 50% 22 0P4 40% 22 0

MEDIUM-LOW P3 30% 22 0P2 20% 15 7P1 10% 8 14

DEFROST P3 30% 22 0

2.2. Inverter power supply circuitThe Inverter Power Supply circuit powered from the linevoltage, 120V 60Hz AC input supplies 4,000V DC to themagnetron tube, and functions in place ofthe H.V. transformer,the H.V. capacitor and H.V. diode. 1. The AC input voltage 120V 60Hz is rectified to DC voltage

immediately. 2. DC voltage will be supplied to the switching devices called

IGBT. These devices are switched ON-OFF by the 20 to 40kHz PWM (pulse width modulation) signal from themicrocomputer in the DPC.

3. This drives the High voltage transformer to increase voltageup to 2,000V AC.

4. Then the half-wave doubler voltage rectifier circuit,consisting of the H.V. diodes and capacitors, generates thenecessary 4,000V DC needed for the magnetron.

5. Output power of the magnetron tube is always monitored bythe signal output from the current transformer built into theinverter circuit.

6. This signal is fed back to the microcomputer in the DPC todetermine operating conditions and output necessary tocontrol PWM signal to the Inverter Power Supply for controlof the output power.

2.3. Inverter defrostWhen the Auto Control feature is selected and the Start buttonis tapped: 1. The digital programer circuit determines the power level and

cooking time to complete cooking and indicates theoperating state in the display window. Table shows thecorresponding cooking times for respective serving bycategories.

Inverter Turbo DefrostSELECTED WEIGHT COOKING TIME

1.0 LB 5 min.28 sec.

2. When cooking time in the display window has elapsed, theoven turns off automatically by a control signal from thedigital programmer circuit.

2.4. Sensor cookingAuto sensor cooking without setting a power level or selectinga time. All that is necessary is to select an Auto SensorProgram before starting to cook.Understanding Auto Sensor Cooking

As the food cooks, a certain amount of steam is produced.If the food is covered, this steam builds up and eventuallyescapes from the container. In Auto Sensor Cooking, acarefully designed instrument, called the humidity sensorelement, senses this escape of steam. Then, based uponthe Auto Sensor Program selected, the unit willautomatically determine the correct power level and theproper length of time it will take to cook the food.

NOTE:Auto Sensor Cooking is successful with the foods andrecipes found in the Auto Sensor Cooking Guide.Because of the vast differences in food composition,items not mentioned in the Cooking Guide should beprepared in the microwave oven using power selectand time features. Please consult Variable PowerMicrowave Cookbook for procedures.

2 DESCRIPTION OF OPERATING SEQUENCE

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Explanation of the Auto Sensor Cooking process 1. T1 time The total amount of time it takes the microwave

oven to switch to T2 time. 2. T2 time When the steam escapes from the cooking

container placed in the oven, the humidity sensordetects it and the microprocessor calculates the balanceof cooking time. This T2 time is then shown in thedisplay and begins counting down.Balance of cooking time (T2 time)The balance of cooking time which is called T2 time,can be calculated by the following formula.T2 time (in sec.) = T1 time X K factor

NOTE:The coefficient K is programmed into themicroprocessor memory and they are listed in thefollowing tables along with the P1 and P2 powers.

NOTE:When "More" or "Less" button is selected, the K factorvaries resulting in T2 time to be increased or decreased.

Example of calculating the T2 timeExample 1: If the T1 time is measured to be 2 minutes and40 seconds, and the Auto program selected is Oatmeal:T2 = T1 × K= 2 min. and 40 sec. × 0.1= 160sec. × 0.1= 16 sec.

Category P1Power

P2Power

K FactorStandard

Oatmeal MEDIUM-HIGH MEDIUM-HIGH 0.5

2.5. Sensor reheatAuto Sensor Reheat is a quick and easy way to reheatrefrigerated and room temperature foods.Simply press the [Sensor Reheat] button. There is no need toselect power level and cooking time.NOTE:

The Auto Sensor Reheat process is same as Auto SensorCooking process.

Category P1Power

P2Power

K FactorStandard

Sensor Reheat HIGH MEDIUM 0.5

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Unlike many other appliances, the microwave oven is a highvoltage, high current device. Though it is free from danger inordinary use, extreme care should be taken during repair.

CAUTIONServicemen should remove their watches and ringswhenever working close to or replacing the magnetron.

3.1. Check the groundingDo not operate on a two wire extension cord. The microwaveoven is designed to be grounded when used. It is imperative,therefore, to ensure the appliance is properly grounded beforebeginning repair work.

3.2. Inverter warningsWARNING HIGH VOLTAGE AND HIGHTEMPERATURE

(HOT/LIVE) OF THE INVERTERPOWER SUPPLY (U)The High Voltage Inverter Power Supply generates veryhigh voltage and current for the magnetron tube. Though itis free from danger in ordinary use, extreme care should betaken during repair.The aluminum heat sink is also energized with high voltage(HOT), do not touch when the AC input terminals areenergized. The power device Collector is directly connectedto the aluminum heat sink.The aluminum heat sink may be HOT due to heat energy,therefore, extreme care should be taken during servicing.

H.V. Inverter warningWARNING FOR INVERTER POWER SUPPLY (U)

GROUNDINGCheck the High Voltage Inverter Power Supply circuitgrounding. The high voltage inverter power supply circuitboard must have a proper chassis ground. The invertergrounding plate must be connected to the chassis. If theinverter board is not grounded it will expose the user to veryhigh voltages and cause extreme DANGER! Be sure thatthe inverter circuit is properly grounded via the invertergrounding plate.

Grounding of the inverter circuit board

3 CAUTIONS TO BE OBSERVED WHENTROUBLESHOOTING

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WARNING DISCHARGE THE HIGH VOLATGECAPACITORS

For about 30 seconds after the oven is turned off, anelectric charge remains in the high voltage capacitors of theInverter Power Supply circuit board.When replacing or checking parts, remove the power plugfrom the outlet and short the inverter output terminal of themagnetron filament terminals to the chassis ground with aninsulated handle screwdriver to discharge. Please be sureto contact the chassis ground side first and then short to theoutput terminal.

Discharging the high voltage capacitorsWARNINGThere is high voltage present with high current capabilitiesin the circuits of the primary and secondary windings, chokecoil and heat sinkof the inverter. It is extremely dangerousto work on or near these circuits with the oven energized.DO NOT measure the voltage in the high voltage circuitincluding the filament voltage of the magnetron.WARNINGNever touch any circuit wiring with your hand or with aninsulated tool during operation.

3.3. Part replacement.When troubleshooting any part or component is to be replaced,always ensure that the power cord is unplugged from the walloutlet.

3.4. When the 20A fuse is blowndue to the malfunction of themonitor interlock switch:

WARNINGWhen the 20A 120V fuse is blown due to the malfunction ofthe monitor interlock switch, replace all of the components(primary interlock switch, monitor switch and power relayRY1).

1. This is mandatory. Refer to “measurements andadjustments” for the location of these switches.

2. When replacing the fuse, confirm that it has theappropriate rating for these models.

3. When replacing faulty switches, be sure the mountingtabs are not bent, broken or deficient in their ability tohold the switches.

3.5. Avoid inserting nails, wire etc.through any holes in the unitduring operation.

Never insert a wire, nail or any other metal object through thelamp holes on the cavity or any holes or gaps, because suchobjects may work as an antenna and cause microwaveleakage.

3.6. Verification after repair 1. After repair or replacement of parts, make sure that the

screws of the oven, etc. are neither loosen or missing.Microwave energy might leak if screws are not properlytightened.

2. Make sure that all electrical connections are tight beforeinserting the plug into the wall outlet.

3. Check for microwave energy leakage. (Refer to procedurefor measuring microwave energy leakage).

CAUTION OF MICROWAVE RADIATION LEAKAGEUSE CAUTION NOT TO BECOME EXPOSED TORADIATION FROM THE MICROWAVE MAGNETRON OROTHER PARTS CONDUCTING MICROWAVE ENERGY.

IMPORTANT NOTICE 1. The following components have potentials above 2000V

while the appliance is operated. • Magnetron • High voltage transformer (Located on inverter (U)) • High voltage diodes (Located on inverter (U)) • High voltage capacitors (Located on inverter (U))Pay special attention to these areas.

2. When the appliance is operated with the door hinges ormagnetron installed incorrectly, the microwave leakagecan exceed more than 5mW/cm2. After repair orexchange, it is very important to check if the magnetronand the door hinges are correctly installed.

3.7. Sharp edgesCAUTIONPlease use caution when disassembling or reassemblinginternal parts. Some exposed edges may be sharp to thetouch and can cause injury if not handled with care.

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WARNING1. High voltage is present at the output terminals of the High VoltageInverter (U) including aluminum heat sink during any cook cycle.2. It is neither necessary nor advisable to attempt measurement of thehigh voltage.3. Before touching any oven components, or wiring, always unplugthe power cord and discharge the high voltage capacitors (see page8).

4.1. Primary, Secondary InterlockSwitch & Power Relay RY1

1. Unplug lead connectors to Power Relay RY1 and verifyopen circuit of the Power Relay RY1 1-2 terminals.

2. Unplug lead connectors to Primary Interlock Switch andSecondary Interlock Switch.

3. Test the continuity of switches at door opened and closedpositions with ohm meter (low scale).Normal continuity readings should be as follows.

Door Closed Door OpenedPrimary Interlock Switch 0Ω (Close) Ω(Open)Secondary Interlock Switch 0Ω (Close) Ω(Open)Power Relay RY1 Ω (Open) Ω(Open)

4.2. Monitor Switch 1. Unplug lead wires from Inverter Power Supply (U) primary

terminals. 2. Connect test probes of ohm meter to the disconnected

leads that were connected to Inverter Power Supply (U). 3. Test the continuity of Monitor Interlock Switch with door

opened and closed positions using lowest scale of the ohmmeter.Normal continuity readings should be as follows.

Door Opened Door Closed0Ω (Close) Ω (Open)

4.3. MagnetronContinuity checks can only indicate an open filament or ashorted magnetron. To diagnose for an open filament orshorted magnetron. 1. Isolate magnetron from the circuit by disconnecting the

leads. 2. A continuity check across magnetron filament terminals

should indicate one ohm or less. 3. A continuity check between each filament terminal and

magnetron case should read open.

4 COMPONENT TEST PROCEDURE

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4.4. Inverter power supply (U)DO NOT try to REPAIR H.V. Inverter power supply (U).Replace complete H.V. Inverter(U) Unit.

WARNING: HIGH VOLTAGETest if failure codes H95, H97 or H98 appear when performingthe following procedure. It is recommended to use an AC lineinput current ammeter for testing.Test 1 1. With the oven unit’s AC power supply cord is unplugged

from the wall outlet, unplug the 2 pin H.V. connector CN703from the magnetron tube.

2. Place 1 liter of water load into oven cavity. 3. Plug in the oven’s AC power supply cord into outlet. 4. Program DPC.

a. Press Clock button once. b. Press Timer button once. c. Press Start button once. d. Press Power Level button once.

5. Program oven at High power for 1 minute and press [Start]button. a. After approximately 23 seconds, oven stops operating. b. During oven operation, the input current is

approximately 0.5 to 1A. If both a and b are OK,proceed to test 2.

INPUT CURRENT FAILURE CODEUnplug CN703 0.5 to 1A Oven stops in 23

seconds after started.

Test 2Continued from Test 1 1. Unplug the oven’s AC power supply cord from outlet. 2. Unplug 3 pin connector CN701. CN703 remains unplugged. 3. Plug in the oven’s AC power supply cord into outlet. 4. Program DPC.


5. Program oven at High power for 1 minute and press [Start]button. a. After approximately 3 seconds, oven stops operating. b. During oven operation, the input current is

approximately 0.4A.

INPUT CURRENT FAILURE CODEUnplug CN701 0.4A Oven stops in 3

seconds after started.

If both a and b check OK, the Inverter Power Supply (U) can bedetermined to be OK.

4.5. Humidity sensorIn order to determine if the humidity sensor function of thedigital programmer circuit is working, do the following test. 1. Program DPC.


2. Place a water load (100 ml) in the oven. 3. Press [Sensor Reheat] button. 4. Press [Start] button. 5. Humidity sensor detects steam after the [Start] button is

pressed. 6. The total amount of T1 cooking time appears in display

window. If the range of cooking time is 50 sec. ~ 2 Min.,humidity sensor function is normal.

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5.1. Adjustment of primaryinterlock switch, secondaryinterlock switch and monitorswitch.

1. Mount the Primary interlock switch, the Secondary interlockswitch and the Monitor switch to the door hook assembly asshown in illustration.NOTE:

No specific individual adjustments duringinstallation of the Primary interlock switch,Secondary interlock switch or Monitor switch to thedoor hook are required.

2. When mounting the door hook assembly to the ovenassembly, adjust the door hook assembly by moving it inthe direction of the arrows in the illustration so that the ovendoor will not have any play in it. Check for play in the doorby pulling the door assembly. Make sure that the interlockkeys move smoothly after adjustment is completed.Completely tighten the screws holding the door hookassembly to the oven assembly.

3. Reconnect the monitor switch and check the continuity ofthe monitor circuit and all interlock switches again byfollowing the component test procedures.

5.2. Measurement of microwaveoutput

The output power of the magnetron can be determined byperforming IEC standard test procedures. However,due to thecomplexity of IEC test procedures, it is recommended to testthe magnetron using the simple method outlined below.Necessary Equipment:*1 liter beaker *Glass thermometer*Wrist watch or stopwatchNOTE:

Check the line voltage under load.Low voltage willlower the magnetron output. Take the temperaturereadings and heating time as accurately as possible.

1. Fill the beaker with exactly one liter of tap water.Stir thewater using the thermometer and record the water’stemperature. (recorded as T1).

2. Place the beaker on the center of glass tray.Set the oven for High power and heat it for exactly oneminute.

3. Stir the water again and read the temperature of the water.(recorded as T2).

4. The normal temperature rise at High power level for eachmodel is as shown in table.

TABLE (1L-1min. test)RATED OUTPUT TEMPERATURE RISE

1100W Min. 16.9°F(9.4°C)

5 MEASUREMENTS AND ADJUSTMENTS

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NOTE:The U.S. Government standard is 5 mW/cm2 while in thecustomer’s home. 2mW/cm2 stated here is our ownvoluntary standard. (1mW/cm2 for Canada)

6.1. Equipment • Electromagnatic radiation monitor • Glass thermometer 212°F or 100°C • 600cc glass beaker

6.2. Procedure for measuringradiation leakage

Note before measuring: • Do not exceed meter full scale deflection. Leakage monitor

should initially be set to the highest scale. • To prevent false readings, the test probe should be held by

the grip portion of the handle only and moved along theshaded area in Figure no faster than 1 inch/sec(2.5cm/sec).

• Leakage with the outer panel removed: less than 5mW/cm2. • Leakage for a fully assembled oven with door normally

closed: less than 2mW/cm 2 (1mW/cm 2 for Canada). • Leakage for a fully assembled oven [Before the interlock

switch (primary) is interrupted] while pulling the door: lessthan 2mW/cm 2.

1. Pour 275 ± 15cc (9ozss± 1/2oz) of 20°C ± 5°C (68° ± 9°F)water in a beaker which is graduated to 600cc, and place inthe center of the oven.

2. Set the radiation monitor to 2450MHz and use it followingthe manufacturer´s recommended test procedure to assurecorrect results.

3. When measuring the leakage, always use the 2 inch (5cm)spacer supplied with the probe.

4. Tap the [Start] button or set the timer and with themagnetron oscillating, measure the leakage by holding theprobe perpendicular to the surface being measured.

6.2.1. Measurement with the outer panelremoved.

Whenever you replace the magnetron, measure for radiationleakage before the outer panel is installed and after allnecessary components are replaced or adjusted. Special careshould be taken in measuring around the magnetron.

6.2.2. Measurements with a fullyassembled oven.

After all components, including outer panel are fully assembled,measure for radiation leakage around the door periphery, thedoor viewing window, the exhaust opening, control panel andair inlet openings.

6.3. Record keeping andnotification after measurement

• After any adjustment or repair to a microwave oven, aleakage reading must be taken. Record this leakagereading on the repair ticket even if it is zero.A copy of this repair ticket and the microwave leakagereading should be kept by repair facility.

• Should the radiation leakage be more than 2 mW/cm2

(1mW/cm2 for Canada) after determining that all parts are ingood condition, functioning properly, and genuinereplacement parts as listed in this manual have been used,immediately notify PSTC, PPR or PCI.

6 PROCEDURE FOR MEASURING MICROWAVE ENERGYLEAKAGE

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6.4. At least once a year, have theradiation monitor checked forcalibration by itsmanufacturer.

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7 TROUBLESHOOTING GUIDE7.1. Troubleshooting of inverter circuit (U) and magnetronThis oven is programmed with a self diagnostics failure code system which will help for troubleshooting. H95, H97, H98 and H99are the provided failure codes to indicate magnetron and inverter circuit problem areas. This section explains failure codes of H95,H97, H98 and H99. First, you must program the DPC into TEST MODE, press Clock button once → press Timer button once→ Press Start button once → press Power Level button once. Program unit for operation. H95, H97, H98, H99 appears indisplay window a short time after [Start] button is pressed and there is no microwave oscillation.

Alternate way to troubleshoot oven with AC Ampere meter used

H95, H97, H98, H99 appears in display window a short time after [Start] button is pressed and no microwave oscillation with ACAmpere meter used for troubleshooting.

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7.2. SIMPLE WAY OF H.V. INVERTER/MAGNETRON TROUBLESHOOTINGPurpose:

Simple way (3/23 seconds rule) of identifying whether it’s Magnetron, Inverter or others.Set-up:

The unit under question is connected through the Ammeter as shown below.

Procedure:Follow the matrix table below to identify the problem source.

Note:Do not replace both Inverter board and Magnetron simultaneously and automatically without going through thisprocedure.

Power will: Ammeter reading is: To do: Remedy:Shut off in 23 secondsafter “Start”.

1. Between 0.5A and 1.0A. Check and repair open magnetron circuit Open magnetron wiring between Inverterand magnetron terminal.

2. Between 1.0A and 2.0A. Check continuity of D702 in Inverter PCB.

1. D702 shorted Replace H.V.Inverter(F606Y8X00AP)2. D702 is OK Replace magnetron

Shut off in 3 secondsafter “Start”

1. Less than 0.5A Check open circuit: Interlock Switch,DPC, Power Relay and CN701

Replace defective component(s), orcorrect switch, cables and connectors.

7.3. H.V.INVERTER BOARD MAIN PARTS LIST (F606Y8X00AP)Ref. No. Part No. Part Name & Description Pcs/Set RemarksDB701 B0FBBQ000007 BRIDGE DIODE 1 20A,600VL701 F5020W100AP CHOKE COIL 1Q701 B1JAGV000015 TRANSISTOR SI 1 1000VT701 A609A8X00AP H.V. TRANSFORMER 1C701 F0C2H284A012 CAPACITOR 1 0.28µF/500VDCC702 F0C2E455A246 CAPACITOR 1 4.5µF/250VDC

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8 EXPLODED VIEW AND PARTS LIST8.1. EXPLODED VIEW

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8.2. PARTS LISTNOTE:

1. When ordering replacement part(s), please use part number(s) shown in this part list.Do not use description of the part.

2. Important safety notice:Components identified by mark have special characteristics important for safety.When replacing any of these components, use only manufacture’s specified parts.

Ref. No. Part No. Part Name & Description Pcs/Set Remarks1 F00067600CP CAUTION LABEL 12 F00336Z20AP FUSE LABEL 13 F10096Z00SCP CABINET BODY (U) 1 SD291S3 F10098Q00HAP CABINET BODY (U) 1 SD291W4 F100D6Z00AP BASE PLATE (U) 15 F201A6F10AP OVEN (U) 1

6 F20115H00AP COVER 17 F21314Y00XN PULLY SHAFT 18 F290D5Q00AP ROLLER RING (U) 110 F393C6Z00CP DOOR HOOK (U) 1

14 F40016Z00AP FAN MOTOR A 1 FOR INVERTER (U) COOLING15 F40085H00AP FAN BLADE 1 FOR INVERTER (U) COOLING

16 F40256Z80AP ORIFICE 117 F401W9D90AP BLOWER MOTOR (U) 118 F42486Z00AP FAN CASE C 120 F42505H00AP SIROCCO FAN C 1

21 F42676Z80AP FAN MOTOR B 1 FOR MAGNETRON COOLING22 F601L6F00AP SENSOR (BU) 123 F40246Z00AP EXHAUST GUIDE A 124 F44775H00AP EXHAUST GUIDE 125 F20025H00AP RACK SUPPORT 4

26 F65856Z00AP INVERTER BRACKET 127 F62386Z00AP WASHER 128 F62386F00AP WASHER 1

32 F100T5H00APG BACK PLATE (BU) 133 F400B6Z00AP FILTER (U) 234 F400K5H00APG EXHAUST ADAPTER 135 F63176F00SAP LAMP HOLDER 1 SD291S35 F63175H10HAP LAMP HOLDER 1 SD291W

36 F64375H00AP GLASS PLATE 137 F41576Z00APG FAN INSTALLATION PLATE 138 F42176Z00APG COVER PLATE 139 F42205H00APG COVER PLATE B 140 F607V6Z00AP LAMP COVER (U) 1

41 F61846Z00AP GROUNDING PLATE 142 F60405H00AP LAMP MEMBRANE 143 F61446Z00AP STIRRER MOTOR 144 F20155H00AP STIRRER 145 F20165H00AP ANTENNA SUPPORT 1

46 F60305H00AP INCANDESCENT LAMP 1 (TOP OVEN LAMP)48 F61525H00AP SOCKET 1

51 F61456F20AP THERMAL CUTOUT 152 F61456N60AP THERMAL CUTOUT 353 F606Y8X00AP H.V.INVERTER (U) 154 2M261-M32JP MAGNETRON 155 F62308F20AP FUSE 1 20A/125V

56 F400B6Z20AP CARBON FILTER (U) 157 F607X9X00CP NOISE FILTER (U) 158 F82605H00AP NOISE FILTER BRACKET 159 F66986Z20AP MOTOR CAPACITOR 160 F63266Z80AP TURNTABLE MOTOR 1

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Ref. No. Part No. Part Name & Description Pcs/Set Remarks61 F900C9X00CP AC CORD W/PLUG 162 F90804W00AP CANOE CLIP 1 FOR COVER64 F48436Z00APG INHALE GUIDE A 1

69 F01729X00CP CAUTION LABEL 170 F00565H00AP CAUTION LABEL 1

72 F00725H00AP CAUTION LABEL 173 F04469X00CP FUNCTION LABEL 174 F66396F00AP MOTOR INSTALLATION BRACKET 175 F63266F00AP DRIVE MOTOR 1

76 F11736F00AP SPRING 277 F11196F00SAP VENT GRILLE OSTENTATIOUS COVER 1 SD291S77 F11196Z00HAP VENT GRILLE OSTENTATIOUS COVER 1 SD291W78 F11189D90AP VENT GRILLE INSTALLATION

BRACKET1

79 F11176F00SAP VENT GRILLE 1 SD291S79 F11176Z00HAP VENT GRILLE 1 SD291W80 F48236F00AP CAM 1

81 F48246Z00AP SHAFT 182 F111B6F00APG BACKSTOP AU 283 F111C6F00APG BACKSTOP BU 184 J61415G10XN MICRO SWITCH 185 F101V6Z00SAP VENT GRILLE (U) 1 SD291S85 F101V6Z00HAP VENT GRILLE (U) 1 SD291W

86 F90356Z00AP AC CORD FIXING PLATE 187 A66135H00AP BRACKET A 388 F03346Z20CP MENU LABEL 1

91 F01956F10CP CAUTION LABEL 192 F40316Z00APG AIR BAFFLE C 193 F00067C50CP CAUTION LABEL 194 F62315G10XN FUSE HOLDER 195 XTC4+12BC SCREW 4

97 XTC4+10AFZ SCREW 1 SD291S97 XTC4+10AFC SCREW 1 SD291W98 XTTFA4+8BFZ SCREW 2 SD291S98 XTTFA4+8BCR SCREW 2 SD291W99 F605S9X00CP D.P.CIRCUIT (HU) 1 COOKTOP LAMP (LED) INSIDE100 F67269X00CP REFLECTOR 1

101 F81279X00CP COOKTOP LAMP PANEL 1102 F21559D90AP MEMBRANE 1

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8.3. DOOR ASSEMBLY

Ref. No. Part No. Part Name & Description Pcs/Set RemarksD1 F30186P40AG DOOR KEY A 1D2 F302A8Q00SAP DOOR A (U) 1 SD291SD2 F302A8Q50HAP DOOR A (U) 1 SD291WD3 F302K5H00AP DOOR E (U) 1D4 F30215G10XN DOOR KEY SPRING 1D5 F30855H00AP DOOR C 1

D6 F31455H00AP DOOR SCREEN A 1D7 F04114180CP HC LABEL 1

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8.4. ESCUTCHEON BASE ASSEMBLY

Ref. No. Part No. Part Name & Description Pcs/Set RemarksE1 F603L9X00CP D.P.CIRCUIT (AU) 1E2 F603Y9X00CP D.P.CIRCUIT (DU) 1E3 F800L9X00SCP ESCUTCHEON BASE (U) 1 SD291SE3 F800L9X00HCP ESCUTCHEON BASE (U) 1 SD291WE4 F66166Y40BP FLAT CABLE 1E5 F82988Q00SAP BUTTON 1 SD291SE5 F82989D90HAP BUTTON 1 SD291W

E6 F891P6F00SAP DOOR OPENING BUTTON (U) 1 SD291SE6 F891P6Z00HAP DOOR OPENING BUTTON (U) 1 SD291WE7 F82566F00AP DOOR OPENING LEVER 1E8 F80375950AP COOK BUTTON SPRING 2E10 F81278Q00APG BACK PANEL 1

E11 F83928P00KAP DIAL 2 SD291SE11 F83929D90HAP DIAL 2 SD291WE14 F80098P00AP LED COVER A 2E15 F00079X00SCP NAME PLATE 1 SD291SE15 F00079X00HCP NAME PLATE 1 SD291W

E16 XTWFNE4+12P SCREW 1 SD291SE16 XTWFNE4+12PW SCREW 1 SD291W

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8.5. PACKING AND ACCESSORIES

Ref. No. Part No. Part Name & Description Pcs/Set RemarksP1 F00039X00CP INSTRUCTION MANUAL 1P2 F01029X00SCP PACKING CASE,PAPER 1 SD291SP2 F01029X00HCP PACKING CASE,PAPER 1 SD291WP3 F01045H00AP UPPER FILLER 1P4 F01055H00AP LOWER FILLER 1P5 F01066Z20AP P.E.BAG 1

P6 F01075H00AP DOOR SHEET 1P7 A06015H00AP COOKING TRAY 1P8 F01175H00AP TRAY PACKING B 1P9 F01485H00AP REINFORCE BRACKET 2P10 F01085H00AP TRAY PACKING 1

P11 F01928Q00SAP SHEET 2P12 F06025H00AP OVEN RACK 1P13 F02185H00AP PROTECTOR PACKING 1P14 F03138Q00CP INSTALLATION INSTRUCTION 1P15 F04318Q00CP UPPER-CABINET TEMPLATE 1

P16 F011F6Z00AP ATTACHMENT 1P18 F04459X00SCP OVERLAY 1 SD291SP18 F04459X00HCP OVERLAY 1 SD291WP19 F011G6Z00AP ATTACHMENT B 1P19 F01569Y40CP CAUTION SHEET 133 F400B6Z00AP FILTER (U) 2

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8.6. WIRING MATERIALS

Ref. No. Part No. Part Name & Description Pcs/Set RemarksW1 F030A9X00CP LEAD WIRE HARNESS 1 (Connect to Primary Interlock Switch,Monitor

Switch,Top Oven Lamp,Stirrer Motor,Magnetron coolingFan Motor, Inverter cooling Fan Motor,3 ThermalCutouts,Blower Motor & Cam Switch etc.)

W2 F030E5H00CP H.V.LEAD WIRE 1 (Magnetron to CN702 of H.V.Inverter)W3 F03539X00CP LEAD WIRE HARNESS U 1 (INCLUDING 5 PIN CONNECTOR CN4)

(Connect to Secondary Interlock Switch etc.)W4 F03559X00CP LEAD WIRE HARNESS 1 (Connect to Turntable Motor & Cooktop Lamps etc.)

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9 DIGITAL PROGRAMMER CIRCUIT9.1. SCHEMATIC DIAGRAM

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9.2. PARTS LISTRef. No. Part No. Part Name & Description Pcs/Set Remarks

BZ210 L0DDEA000014 BUZZER 1 2.0KHzC10 F2A1C471B626 AL CHEM CAPACITOR 1 470µF/16VC25 F2A2E4700009 CHEM CAPACITOR 1 47µF/250VC11 F2A1C220B624 AL CHEM CAPACITOR 1 22µF/16VC28 F2A1H1R0B574 AL CHEM CAPACITOR 1 1µF/50VC490 F2A1J100A556 CHEM CAPACITOR 1 10µF/63VC30,C31 F1BAH1020013 CERAMIC CAPACITOR 1 100PF/400VC26 AECT81F102K CERAMIC CAPACITOR 1 1000PF/1KVCX320 H2A8004A0038 CERAMIC RESONATOR 1 8.0MHzDISP110 L5AYAYY00145 LCD 1DISP HOLDER F66175W00AP LCD HOLDER 1

F67525E40XN DIFFUSION SHEET 1D25,D41,D145-D149,D150,D220-D223,D226,D227

B0AACK000004 DIODE 14

D11 AESB2100TLRC DIODE 1D28 B0HAMT000018 DIODE 1D29 B0HAMM000106 DIODE 1D30 B0EDKR000014 BRIDGE DIODE 1D31 B0EAKT000025 DIODE 1D32 D4EAY271A036 ZENER RESISTOR 1 270VZD10,ZD11 DZ2J062M0L ZENER DIODE 2ZD12 DZ2J068M0L ZENER DIODE 1D490 B0AADM000003 DIODE 1D491,D500 B0JAAE000001 DIODE 2D130-D136 AE3294UBCA7 LED 7IC1 MN101E29GJT L.S.I. 1IC10 C0DBAHD00013 IC 1IC25,IC27 B3PAA0000302 IC 2IC26 MIP2K30MSSCF IC 1IC220 B1HBGFF00007 IC 1IC380 C3EBDC000063 IC 1IC501 C0ABBA000230 IC 1Q135,Q180 B1BAAJ000003 TRANSISTOR 2D501 B0JAAE000001 DIODE 1RY1 AEBGJQC25F12 POWER RELAY 1 12VRY2-RY8 K6B1AGA00119 POWER RELAY 7RY9 K6B1CGA00099 POWER RELAY 1T10 G4DYA0000326 LOW VOLTAGE TRANSFORMER 1 120VRE80,RE81 EVEJ1HF2224M REVOLVING ENCODER 2SW40-SW47,SW49-SW56 EVQ11L05R SWITCH 16

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06/11S-9X0Printed in China

Microwave Oven NN-SD291S NN-SD291W -...

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