Panasonic NN-S335WM Service Manual Download Page 1

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© 2005 Panasonic Home Appliances Microwave
Oven (Shanghai) Co., Ltd. All rights reserved.
Unauthorized copying and distribution is a violation
of law.

NN-S335BF
NN-S335WF
NN-S335WM

APH(USA)

CPH(Canada)

RPH(Mexico/Latin American)

Microwave Oven

ORDER NO.PHAMOS0501007C7

Summary of Contents for NN-S335WM

Page 1: ...es Microwave Oven Shanghai Co Ltd All rights reserved Unauthorized copying and distribution is a violation of law NN S335BF NN S335WF NN S335WM APH USA CPH Canada RPH Mexico Latin American Microwave Oven ORDER NO PHAMOS0501007C7 E1 ...

Page 2: ...2 NN S335BF NN S335WF NN S335WM ...

Page 3: ...11 7 5 Door assembly 12 7 6 Turntable motor 12 8 COMPONENT TEST PROCEDURE 13 8 1 Primary Latch Switch Door Switch and Power Relay B Interlocks 13 8 2 Short Switch Monitor 13 8 3 High voltage transformer 13 8 4 High voltage capacitor 13 8 5 Magnetron 14 8 6 Diode U 14 8 7 Membrane key board Membrane switch assembly 14 9 MEASUREMENTS AND ADJUSTMENTS 15 9 1 Adjustment of Primary latch switch Secondar...

Page 4: ...NN S335WF NN S335WM FEATURE Three Stage Cooking O O O Auto Defrost O O O Auto Cook O O O Power Level Select O O O Quick Min O O O Timer O O O Digital Clock O O O Child Safety Lock O O O 2 CONTROL PANEL 4 NN S335BF NN S335WF NN S335WM ...

Page 5: ...Oven beeps twice and automatically switches to 2nd stage cooking OPERATION SCROLL DISPLAY 8 When 2nd stage cooking time has elapsed oven beeps 5 times and shuts off Time of day or colon if set appears in the display 3 3 Auto Defrost OPERATION SCROLL DISPLAY 1 Press Auto Defrost Pad 2 Set the weight for 1 lb by pressing Number pads 1 Ib 1 0 3 Press Quick Min Start pad 4 Press Stop Reset Pad twice O...

Page 6: ...4 SCHEMATIC DIAGRAM 4 1 APH RPH 6 NN S335BF NN S335WF NN S335WM ...

Page 7: ...4 2 CPH 7 NN S335BF NN S335WF NN S335WM ...

Page 8: ...lament OUTPUT ON OFF TIME OF POWERSETTING POWER POWER RELAY B RY1 APPROX ON SEC OFF SEC HIGH 100 22 0 MEDIUM HIGH 70 17 5 MEDIUM 50 13 9 MEDIUM LOW 30 8 14 LOW 15 5 17 DEFROST 30 8 14 5 2 Auto Defrost Auto Reheat Auto Cook control When those Auto Control feature is selected and the Start Pad is tapped 1 The digital programmer circuit determines the power level and cooking time to complete cooking ...

Page 9: ... you must replace all of the components Primary latch switch Door switch Short switch and Power relay B RY1 1 This is mandatory Refer to Adjustments and Measurement for these switches 2 When replacing the fuse confirm that it has the appropriate rating for these models 3 When replacing faulty switches be sure mounting tabs are not bent broken or otherwise deficient in their ability to hold the swi...

Page 10: ...flat cable from D P C board holding on the oven cavity 2 Remove 1 screw holding escutcheon base and slide the escutcheon base upward slightly 3 Remove 1 screws holding D P C board 4 Separate D P C board from tabs on the escutcheon base and remove D P C board 5 Remove rubber connector 6 Separate display from tabs on the escutcheon base and remove display To replace membrane key board 7 Push the upp...

Page 11: ...ith all the terminal pins cleaned and separated from DPC contacts remove the defective transformer power relays Replace components making sure all terminal pins are inserted completely Resolder all terminal contacts carefully 7 4 Fan motor 1 Disconnect 2 lead wires from fan motor terminals 2 Remove 1 screw holding diode U on side of the oven 3 Disconnent 2 H V lead wires which linking to H V trans...

Page 12: ...s NOTE Door alignment is crucial If door is misaligned apply pressure until alignment is achieved NOTE After replacement of the defective component parts of the door reassemble and perform microwave leakage test 7 6 Turntable motor 1 Remove the motor cover by breaking off at the 4 spots indicated by arrows with a cutter or the like NOTE After breaking off the motor cover make sure that cut off por...

Page 13: ...from H V transformer primary terminals 2 Connect test probes of ohm meter to the disconnected leads of the H V Transformer 3 Test the continuity of short switch with door opened and closed positions using lowest scale of the ohm meter Normal continuity readings should be as follows 8 3 High voltage transformer 1 Remove connectors from the transformer terminals and check continuity 2 Normal cold re...

Page 14: ...higher voltage batteries should be used to check the front to back resistance of the diode otherwise an infinite resistance may be read in both directions A normal diode s resistance will be infinite in one direction and several hundred KΩ in the other direction 3 With the ohmmeter set on the highest resistance scale measure the resistance across the protector diode terminals Reverse the meter lea...

Page 15: ...ction of the arrows in the illustration so that the oven door will not have any play in it Check for play in the door by pulling the door assembly Make sure that the latch keys move smoothly after adjustment is completed Completely tighten the screws holding the door hook assembly to the oven assembly 3 Reconnect the short switch and check the coninuity of the monitor circuit and all latch switche...

Page 16: ...d to 600cc and place in the center of the oven 2 Set the radiation monitor to 2450MHz and use it following the manufacturer s recommended test procedure to assure correct results 3 When measuring the leakage always use the 2 inch 5cm spacer supplied with the probe 4 Tap the start pad or set the timer and with the magnetron oscillating measure the leakage by holding the probe perpendicular to the s...

Page 17: ...10 4 At least once a year have the radiation monitor checked for calibration by its manufacturer 17 NN S335BF NN S335WF NN S335WM ...

Page 18: ...d wire and then disconnect it otherwise lead wire may be damaged or the connector cannot be removed 5 Do not touch any parts of the circuitry on the digital programmer circuit since static electric discharge may damage this control panel Always touch yourself to ground while working on this panel to discharge any static charge in your body 6 120V AC is present on the digital programmer circuit Ter...

Page 19: ...11 1 Trouble related to Digital Programmer Circuit 19 NN S335BF NN S335WF NN S335WM ...

Page 20: ...11 2 How To CHECK THE SEMICONDUCTORS USING AN OHM METER 20 NN S335BF NN S335WF NN S335WM ...

Page 21: ...12 EXPLODED VIEW AND PARTS LIST 12 1 EXPLODED VIEW 21 NN S335BF NN S335WF NN S335WM ...

Page 22: ...5 F41446S10XP ORIFICE 1 16 F612E5U40AP INCANDESCENT LAMP U 1 17 J61424T00AP MICRO SWITCH 1 PRIMARY LATCH SWITCH 18 J61414T00AP MICRO SWITCH 1 SECONDARY LATCH SWITCH 20 F61456S10XP THERMAL CUTOUT 1 60 C ON 180 C OFF 21 J61784T00AP MICRO SWITCH 1 SHORT SWITCH 22 2M210 M1F MAGNETRON 1 APH RPH 22 2M210 M1J MAGNETRON 1 CPH 23 F6090 1H70 H V CAPACITOR 1 24 F60376S10XP CAPACITOR BRACKET 1 25 F600B6R60AP ...

Page 23: ...60AP DHHS LABEL 1 APH RPH D10 F04114180CP HC LABEL 1 CPH 12 4 ESCUTCHEON BASE ASSEMBLY Ref No Part No Part Name Description Pcs Set Remarks E1 F603L6S20AP D P CIRCUIT AU 1 S335BF WF APH E1 F603L6S20CP D P CIRCUIT AU 1 S335WF CPH E1 F603L6S20RP D P CIRCUIT AU 1 S335WF RPH E2 F630Y6S20BAP MEMBRANE SWITCH U 1 S335BF APH E2 F630Y6S20HAP MEMBRANE SWITCH U 1 S335WF APH E2 F630Y6S20HCP MEMBRANE SWITCH U ...

Page 24: ... CPH P2 F01026S20HRP PACKING CASE PAPER 1 S335WF RPH P2 F01027G80HRP PACKING CASE PAPER 1 S335WM RPH P3 F01045G40XN UPPER FILLER 1 P4 F01056S10XP LOWER FILLER 1 P5 F01068100XN P E BAG 1 P6 F01075G10XN DOOR SHEET 1 P7 F06016D00XN COOKING TRAY 1 P9 F00065G40AP CAUTION LABEL 1 APH RPH P10 F01565U40RP NOTICE 1 RPH P11 F04456S20HCP OVERLAY 1 S335WF CPH P12 F01925E60XN SHEET 1 S335BF 12 6 WIRING MATERIA...

Page 25: ...13 DIGITAL PROGRAMMER CIRCUIT 13 1 SCHEMATIC DIAGRAM 25 NN S335BF NN S335WF NN S335WM ...

Page 26: ...26 NN S335BF NN S335WF NN S335WM ...

Page 27: ...STOR 1 Q14 Q210 Q225 Q230 AESC23JKE CHIP DIGI TRANSISTOR 4 Q224 Q231 2SC2412KT146 CHIP TRANSISTOR 2 Q223 B1ACGF000004 AUDION 1 R350 AERJ06J102R CHIP RESISTOR 1 1KΩ Ω Ω Ω 1 10W 5 R221 R223 AERJ06J104R CHIP RESISTOR 2 100KΩ Ω Ω Ω 1 10W 5 R225 R227 AERJ06J152R CHIP RESISTOR 2 1 5KΩ Ω Ω Ω 1 10W 5 R220 AERJ06J222R CHIP RESISTOR 1 2 2KΩ Ω Ω Ω 1 10W 5 R13 AERJ06J223R CHIP RESISTOR 2 22Ω Ω Ω Ω 1 10W 6 R10...

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