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SERVICE MANUAL
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING
SERVICING TO AVOID POSSIBLE EXPOSURE TO
(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.
Microwave Oven
CAUTION
WARNING TO SERVICE TECHNICIANS
EXCESSIVE MICROWAVE ENERGY
File No :
EM-F1010MW
EM-F1010MB
Model No :
Product Code No :
EM-F1010MW
437 373 72
EM-F1010MB
437 373 73
REFERENCE NO. SM-860329
(U.S.A.)
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Summary of Contents for Sanyo 437 373 72
- Page 1 Microwave Oven EM-F1010MW EM-F1010MB (U.S.A.) Model No : Product Code No : EM-F1010MW 437 373 72 EM-F1010MB 437 373 73 CAUTION WARNING TO SERVICE TECHNICIANS 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.
- Page 2 CAUTION In the area emitting the highest reading, switch the meter to SLOW RESPONSE, and take a reading for minimum of three (3) seconds. We recommended the pattern outline For microwave energy emission shown below when the door surface is surveyed. On every service calls, check for microwave NOTE : Periodically check to be sure that the probe tip is...
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Page 3: Table Of Contents
S E R V I C E P E R S O N N E L . which act as Secondary Interlock Switch. The SANYO service center should have the designated Door detector to measure the microwave energy leakage Latch after the repair or adjustment. -
Page 4: Specifications
2. SPECIFICATIONS 4. PRECAUTIONS AND REPAIR SERVICE TIPS PRELIMINARY Rated Power Consumption .. 920W. Microwave Output ....600W. A. SINCE NEARLY 2,000 VOLTS EXISTS IN SOME Frequency ......2,450MHz±50MHz. CIRCUITS OF THIS MICROWAVE OVEN, REPAIRS Power Supply ..... 120V±12V, 60Hz. SHOULD BE CARRIED OUT WITH GREAT CARE. -
Page 5: Circuit Diagram
PRIMARY INTERLOCK SWITCH : WHITE YELLOW LOWER DOOR INTERLOCK SWITCH SECONDARY INTERLOCK SWITCH: UPPER DOOR INTERLOCK SWITCH NOTE : The parts marked with have special characteristics of safety, if replace the marked parts, use only SANYO specified parts. - 3 -... -
Page 6: Test Procedures And Troubleshooting
6. TEST PROCEDURES AND TROUBLESHOOTING Filament Windings CAUTION - DISCONNECT THE POWER SUPPLY CORD FROM Secondary THE WALL OUTLET WHENEVER REMOVING THE Windings CABINET FROM THE UNIT. PROCEED WITH THE TESTS ONLY AFTER DISCHARGING THE HIGH VOLTAGE CAPACITOR AND REMOVING THE LEAD WIRES FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER. - Page 7 COMPONENT CHECKOUT PROCEDURE RESULT Measure the resistance : Across two terminals Normal reading : w i t h a n O h m - M e t e r o n h i g h e s t s c a l e . Momentarily indicates several Ohms, and gradually returns to 10 Meg-Ohms.
- Page 8 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 terminals. SWITCHES CHECKOUT PROCEDURES DOOR OPEN DOOR CLOSED Primary Interlock Connect an Ohm-Meter leads to terminals “COM”...
- Page 9 CONDITION TROUBLE CHECK RESULT REMEDY Fuse (15A) Timer blows Shorted. Replace Timer. Motor. off immediately. (See page 9) Shorted. Replace. Blower Motor. Secondary Circuit Shorted. Replace. (High Voltage) Replace. Gear Motor. Shorted. Oven operates Blower Motor. No operation. Replace. for a few minutes and stops.
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Page 10: Disassembly Instructions
7. DISASSEMBLY INSTRUCTIONS • OVEN MUST BE DISCONNECTED FROM ELECTRICAL B. REMOVING PRIMARY INTERLOCK SWITCH AND OUTLET WHEN MAKING REPLACEMENTS, REPAIRS, INTERLOCK MONITOR SWITCH ADJUSTMENTS AND CONTINUITY CHECKS BEFORE (Figure 9-b) PROCEEDING WITH ANY REPAIR WORK. AFTER DISCONNECTING, WAIT AT LEAST 1 MINUTE, UNTIL (1) Disconnect all wire leads from Primary Interlock THE CAPACITOR IN THE HIGH-VOLTAGE AREA and Interlock Monitor Switch. - Page 11 C. REMOVING BLOWER MOTOR (Figures 10 (Top View) and 11). (1) Disconnect all lead wires from the Blower Motor and H.V. Capacitor. Blower (2) Remove 3 screws securing the Blower Base Duct (mag. exhaust) Base and Blower Motor from Cavity Rear Plate (Figure 11).
- Page 12 H. REMOVING CAVITY COVER F. REMOVING DOOR (Figure 13) (1) Remove 2 hex nuts securing the upper hinge. (1) Gently press both ends to release 3 hooks, (2) Tilt the top of the Door toward you. while holding the Cavity Cover from the (3) Lift up the Door to remove it.
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Page 13: Exploded View And Parts List
8. EXPLODED VIEW AND PARTS LIST CAVITY PARTS ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK (***). Key Part No. Description Q’ty Part No. - Page 14 NOTE : The parts marked with have special characteristics of safety, if replace the marked parts, use only SANYO specified parts. ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK (***).
- Page 15 DOOR PARTS ALL SERVICE ON MICROWAVE OVENS SHOULD BE PERFORMED BY A QUALIFIED TECHNICIAN USING APPROVED TESTING EQUIPMENT. CUSTOMERS SHOULD NOT ATTEMPT TO REPLACE PARTS IDENTIFIED BY A TRIPLE ASTERISK (***). Key Part No. Description Q’ty Part No Description Q’ty 617 245 1619 Door Cover***(F1010MWFC) 617 178 0062...
- Page 16 Carton Box Comp. (F1010MBFC) For Parts or Service Contact 617 245 0544 Name Plate (F1010MWFC) 617 245 1527 Name Plate (F1010MBFC) SANYO FISHER SERVICE COMPANY 21605 Plummer Street, JUNE 2001. 1500 LT Printed in Singapore Chatsworth, CA91311 U.S.A. - 14 -...
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