Sanyo EM-C2001SD Service Manual Download Page 17 | Manualshive

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8. EXPLODED VIEW AND PARTS LIST

Main body Parts-1

Parts marked with this sign are supplied with
high voltage exceeding 250V

Parts marked with this sign have special
Characterstics important for microwave leakage.
When replacing any of these parts use only
Manufacturers specified parts.

3x6

3x6

3x6

3x6

3x6

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...
15
16
17
18
19
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Summary of Contents for EM-C2001SD

Page 1: ...vice 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 ...

Page 2: ...he lever stopper screws securely 4 Make sure the latch interlock switch and the door sensing switch open before the interlock monitor switches coses when the door is opened very slowly according to CHECKOUT PROCEDURE FOR SWITCHES on page 6 5 Make sure the microwave energy leakage is below the limit of the reguration5 mW cm2 when measured with a detector All service adjustments must be made for min...

Page 3: ...e unit until it is completely repaired of any of the following conditions a Door is not closed firmly against the cavity front b The hinge is broken c The choke dielectric or the door seal is dam aged d The door is bent or warped or there is any other visible damage to the oven that may cause microwave energy leakage Note Always keep the seal clean e Make sure that there are no defective parts in ...

Page 4: ... DIAGRAM Figure 3 Caution The voltage between filament leads of magnetron is about 3 3VA C but the filament carries 4KV DC high voltage with respect to ground Never touch these leads with bare hand during operation ...

Page 5: ...en each filament terminal of the magnetron and the chassis ground with an ohm meter on highest scale COMPONENT MAGNETRON HIGH VOLTAGE TRANSFORMER 1 Measure the resistance With an ohm meter on R x1 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 b Filament winding to ground CHECKOUT PROCEDURE RESU...

Page 6: ...d and infinite ohms in the reverse direction using ohm meter with a 9V battery NOTE Some digital meter may show more than 0 ohms or infinite ohms even in a forward direction because the low mea suring voltage of the meter does not allow the meter to pass through the high voltage diode Use an ohm meter with a 9V battery Abnormal reading Indicates continuity or infinite ohms in both directions Figur...

Page 7: ...n 1 K ohms 1 meg ohms When checking the key connect the ohm meter as illustrated below SWITCHES SEE Figure 1 on page 1 CHECKOUT PROCEDURES DOOR OPEN DOOR CLOSED INTERLOCK SWITCH DOOR SENSING SWITCH INTERLOCK MONITOR SWITCH Terminals COM and NO Terminals COM and NC CHECKOUT PROCEDURE FOR SWITCHES Disconnect the lead wires from the switches and check for the continuity of the switches connecting an ...

Page 8: ...erent from the specified values COMPONENT CONTROL CIRCUIT BOARD CHECKOUT PROCEDURE RESULT WARNING When removing the cabinet you must disconnect the power supply cord from the wall oulet for your safety Only the checkout procedure below needs the power supply on TAKE GREAT CARE to avoid possible electrical shock For your safety proceed with the test only after removing the wire leads from the pri m...

Page 9: ... Touch key board See page 6 Control circuit board See page 7 Cooking ope ration will not start Oven does not heat up Door sensing switch See page 6 Interlock switch See page 6 Control circuit board See pages 7 27 See HINT on page 10 Shorted Replace Incorrect Reconnect Voltage incorrect Replace Resistance incorrect Replace No continuty No continuty Voltage incorrect Replace Replace Replace Note Ove...

Page 10: ...s not touched within 1 minute after the door is opened or closed Oven stops heating Buzzer continuously beeps Blower motor will stop immediately Oven stops heating Buzzer does not beep Blower motor will stop immediately Oven stops heating Buzzer does not beep Blower motor is operated Oven stops heating Buzzer continuously beeps Blower motor will stop immediately Check for open circuit of thermisto...

Page 11: ...LACE 1 Disconnect all lead wires form the interlock MENTS REPAIRS ADJUSTMENT OR CONTINUITY monitor switch and door sensing switch CHECKS BEFORE PROCEEDING WITH ANY RE 2 Remove 2 screws securing the lever stopper PAIR WORKS WAIT AT LEAST 1 MINUTE UNTIL 3 Remove 2 screws and nuts from the door THE CAPACITOR IN THE HIGH VOLTAGE AREA HAS sensing switch FULLY DISCHARGED 4 Make the necessary adujustment...

Page 12: ...ecessary adjustments or replace ment of the switch by reversing step 2 and check microwave energy leakage according to 1 ADJUSTMENT PROCEDURE FOR SWITCHES on page 1 Check proper opera tion according to CHECKOUT PROCEDURE FOR SWITCHES on page 6 I REMOVING MAGNETRONS G REMOVING TOUCH KEY BOARD 1 Remove the FPC connector from the connector S101 while pushing up the end of the plastic fastner 2 Remove...

Page 13: ...ar Blower Ass y front Stay HOW TO RESET THE MEMORY OF ACCUMULATIVE COOKING TIME Note Total number of door operation can not be cleared When new magnetron is replaced accumulative cooking time must be set to Zero as follows 1 Touch C key The 0 appear on the display 2 Touch Clock mark key The colon and power level ten bar will appear on the display 3 Touch number key 8 three times The 8 88 will appe...

Page 14: ... 6 After replacing the door check for microwave ene rgy leakage with a leakage detector Microwave energy leakage must be below the limit of 5mW cm2 M HOW TO RESET THE MEMORY OF ACCUMU LATIVE COOKING TIME 1 Push the keys step by step as follows CLEAR TIME 8 8 8 1 START START The display will show accumulative cooking time in display window 2 Then push the keys as follows 0 MEMORY The Memory of Accu...

Page 15: ... time All 4 digits will be flashing The number 215 showstotal cooking hours OR Incasewhereoptions other than1 or2 were selected instage4 0 appearsinthe display confirming that thenew setting has beenaccepted Incaseofoption 1 or2 theCLEAR keymust be touched toclear thedisplay Not necessary for options 3 to0 The following modes canbe selected by inputting one ofthenumbersbelowattheoperation stage 4 ...

Page 16: ...or more information the following consumable components should be replaced Maintenance light in window display indicates when accumulative cooking time reaches 1 250 hours 1 Magnetron Tube Part No 415 002 6804 2 Printed Circuit Board Relay Part No 617 202 0150 3 Switch base Assembly 4 Door Latch part No 617 068 0998 When more than 2 000 hours of accumulative cooking time is observed the following ...

Page 17: ...Parts marked with this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts 3x6 3x6 3x6 3x6 3x6 ...

Page 18: ... 17 ...

Page 19: ... marked with this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts ...

Page 20: ... 19 ...

Page 21: ...marked with this sign are supplied with high voltage exceeding 250V Parts marked with this sign have special Characterstics important for microwave leakage When replacing any of these parts use only Manufacturers specified parts ...

Page 22: ... 21 ...

Page 23: ... 22 Door Parts ...

Page 24: ... 23 ...

Page 25: ... 24 ...

Page 26: ... 25 9 OVERALL CIRCUIT DIAGRAM ...

Page 27: ... 26 ...

Page 28: ... 27 Printed in JAPAN Sep 99 CONTROL CIRCUIT BOARD Figure 16 ...

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