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Summary of Contents for EM-C950

Page 1: ... or other microwave source and make repairs as necessary 1 Interlock operation 2 proper door closlnq 31 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 O I microwave power for any service test or InspectIon wlthtn the microwave generating compartments check the magnetron wave gu de or transmissio...

Page 2: ... 1 1 Loosen 2 screws securing the lever stopper 2 Adjust the lever stopper position so that it IS pushed forward and pull backward until thele IS about zero gap 2 1 Beween the latch lever and the switch bodies on the secondary interlock switch and the door sensing swich 2 2 Beween the latch lever and the switch body on the interlock monitor switch 2 3 Beween the latch lever and the switch body on ...

Page 3: ... door sensing switch operate properly listen for the cliking sound from the switches Make sure the interlock monitor switch is closed after the primary interlock switch is opened when the door is opened See pages 1 and 6 b Make sure the perforated screen and the choke di electric of the door are correctly mounted 2 After the power is applied a Open and close the door to see If the interlock mechan...

Page 4: ... MDIODE Mq 1 MAGNETRON 11 1 c u l ml Xm V 1 L 1 I w 1 1 ZUJ m Parts rnarkedwiththis signaresupplidwdh u highvottage exceeding 250V o Parts rnarlad with this sign have special characteristics imptant for microwave leakage When replacing any of these parts use only manufacturers specified parts 3 CONTROL PRINTEO CIRCUIT BOARD SI02 la 11 RL1 B r l STEP 00WN TRAN5FDRMER Sloi DOOR SENSING SWITCH a TIME...

Page 5: ...r on R x 1 scale ohm meter 2 Check for Filament Windings Q Figure 4 resistance Between each flla ment terminal of the magnetron and the chassis ground with an ohmmeter on highest scale 1 ohm meter 1 Measure the resistance With an ohm meter on R x 1 scale a Primary winding b Filament winding c Secondary winding 2 Measure the resistance With an ohm meter on highest scale a Primary winding to ground ...

Page 6: ...DE in a forward direction because low measur ing voltage of meter does not allow the F 0 age diode meter current to pass through the high volt Abnormal reading Figure 8 Indicates continuty or infinite ohms in boi directions Measure the resistance Across two terminals Normal reading with an ohmmeter on highest scale Indicates Infinite ohms In both directions m Abnormal reading Ohm meter Indicates c...

Page 7: ...iilust ration below Oflm meter ToP t co o cl C2 C3 0 C3 f31 B2 Open TERMINAL OF FPC CONNECTOR Figure 10 CHECKOUT PROCEDURE FOR SWITCHES Disconnect the lead wires from the switches and check for the continuity of the switches connecting an ohm meter to its ter minals SWITCHES See Figure 1 on page 1 CHECKOUT PROCEDURES DOOR OPEN primary interlock o 0 Secondary interlock Terminals COM and NO Door Sen...

Page 8: ... I c d I 7 ...

Page 9: ... 1 1 Y J w h 1 1 1 c I _ __ ...

Page 10: ... transformer I I 1 4 PROBLEM I OW microwave power i 3b 1 I Normal operation Check operallon of blower motor when START key IS touched H NrI Temporarily short operation across terminals of thermal protectf for magnetron and thermal protector for cavity by using jumper lead I I Normal thermal _ Normal Replace thermal I Runs protector for operation protector for I maanetron and thermal rotector for c...

Page 11: ...u c z u w u 1 I J z m I ___ 1 m r L 4 lo ...

Page 12: ...oard which is held on the control base with the adhesive tape from the control base C REMOVING PRIMARY INTERLOCK SWITCH AND OR INTERLOCK MONITOR SWITCH See Figure 1 on page 1 1 Disconnect all lead wires from the primary and or monitor switches 2 Push rightward the switch while pressing the switch stopper of the lever stopper Figure 11 a until the switch plunger reaches the lever stopper Then remov...

Page 13: ... fuse blows immediately check the primary interlock switch the relay 2 on the control circuit board and the interlock monitor switch according to CHECKOUT PROCEDURE FOR SWITCHES on page 6 And make sure to check the microwave energy leakage according to 1 AD JUSTMENT PROCEDURES on page 1 when the primary interlock switch the relay 2 or the inter lock monitor switch is adjusted or replaced If the pr...

Page 14: ...is held on the door cover with the adhesive tape from the door 4 Remove7 screws securing the door cover Hooks Hooks Door Main I Choke Dlelectrlc Figure 16 NOTES The choke dielectric may be damaged when it IS removed When reinstalling it replace it with new ones if they are damaged After installing the door in place check for micro wave energy leakage with a leakage detector Microwave energy leakag...

Page 15: ...0 EXPLODED VIEW AND PARTS LIST CAVITY PARTS Ilo I A 5 14 ...

Page 16: ...El Parts marked wih ths sign are supplkd with high voltage exceeding 250v Parts ma with th sign have special charactetitb imprtant for microwave leakage When replacing any of these parts use only manufactures specified parts 15 ...

Page 17: ...IGT OPENING COVER LAMP 240V 25W E14 OKUNO LAMP SOCKET OKUNO PAO 2A250VT150 GUIDE STIRRER COVER CANOE CLIP STIRRER COVER AIR GUIDE STIRRER STOPPER P P SPECIAL WASHER 8 5X16X0 5 T0 5XD16 5XD8 5 COLLAR STIRRER SHAFT TEFLON STIRRER FAN STIRRER SHAFT CERAMIC RES 25 J 20W MTST ERF 20HMJ250 POWER CORD BOTTOM BRACKET LGD T1 2 60160 SCR EVR PAN 4X12 CORD BUSHING HEIKO SR 6N 4STRAIGH SPECIAL WASHER D9XD4 5X...

Page 18: ... 7 8 9 10 11 12 13 617 188 3879 617 065 1066 617 141 6886 411 004 4503 411 008 1508 411 004 3506 617 143 8642 617 102 7495 411 010 5907 617 056 1617 411 089 2500 617 068 6006 412 018 2103 H V CAPACITOR LEAD WIRE ASS Y LEAD WIRE ASS Y WITH NUT HEX 4 WASHER SPR 4 NUT HEX FLG W SRT 5 H V TRANSFORMER SPECIAL SCREW SCR EVR PAN 4X12 FOOT CUSHION ASS Y WASHER F 5X1OXO 8 HINGE BOLT HEX C SCT 5X16 MTST 1 1...

Page 19: ... 5079 617 067 4089 617 068 3289 617 068 1063 617 080 6732 617 081 0005 617 079 2929 DESCRIPTION Q TY PLASTIC BARRIER PANEL 1 DOOR COVER 1 FERRITE RUBBER 2 DOOR MAIN FRAME 1 BOLT HEX C SCT 5X16 2 HINGE 1 CHOKE DIELECTRIC 1 DOOR SHEET 1 LATCH LEVER PAINTITE T1 O 1 DOOR LATCH POLYACETAL GF 25 2 SPEED NUT SPN 2ACP 2 SPRING SUS304 WPA D1 2 1 VINYL TUBE 1 18 ...

Page 20: ... 8 617 077 3263 9 617 068 3388 10 617 144 1482 11 617 124 8104 12 617 124 8142 13 617 068 0615 14 617 080 9559 15 617 131 2775 16 617 188 6672 TOUCH KEY BOARD CONTROL PLATE CONTROL BASE ASS T2 FERRITE RUBBER P C B COMP LATCH LEVER SHAFT DOOR RELEASE LEVER VAR RESISTOR ASS Y KNOB BASE KNOB ABS NN B 1 1 1 1 1 1 0 0 1 DOOR LEREASE BUTTON 1 SUS304 WPA DO 8 1 SPRING 1 MENU LABEL 1 OPERATING INSTRUCTION...

Page 21: ...CONTROL CIRCUIT BOARD PIN 6171439823 1 TP 5 TP 3 TP 4 1 TP 1 4 P 1 J r Ground TP 2 20 ...

Page 22: ...R145 lK 5V 1 DOOR Sw D104 1SS133 R106 10K 3 2 S103 0111 1SS133 0112 1SS133 D106 1SS133 1s1 0102 7 C3664 RL2 I I w L 0106 A159 I R127 330n I J BZ1 R113 10K 12V D116 1SS132 CIDE 1 3 AA R114 10K 1 R130 N P 56K D D1l 5V R 6 R129 OSK1OC D13 017 56K 50 1 C109 1 T 0 01 5VC3 50V 1000W 25V 2 W13 Rla R140 4 7K C12 1500 2 6 21 C113 100D 1 50v 012 A R141 4 7K O 30V 22 DSK1OC 390cIx2 S102 3 0 0 0 VF 5V 015 P04...

Page 23: ... c1 c D c 0 Osci 05C2 r F 1 b 5V C103 47p 10V 1 OPEN m 0 15 8 6 11 5 10 4 9 1 B 6 1 5 6 4 5 3 4 2 3 1 2 3 I D106 T 5 T 30V R107 1 0110 1ss13 33 A 1 1 1 IC11O 100P T R131 R108 I u 1 L 1 TCI III 100P T 1 113 R109 I I u I 1 Tc1121 IOOD 1 Tm i 50V 1D117 0118 0119 D120 1ss132xa R134 2135 W136 R131 390nx4 1 2 3 4 1S101 1 2 3 4 q 5 v POVEP u CLEAR START STOP 5v 15 132X3 5v m u D103 I 1SS133 I C102 47 5 l...

Page 24: ...SANYO Electric Co Ltd Osaka Japan 3ti 96 3oo Printed in Japan ...

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