Sanyo EM-SL100NUK Service Manual

Sanyo EM-SL100NUK Service Manual

Microwave oven with convection and grill

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SERVICE MANUAL
Read this manual carefully, especially precaution on microwave energy, and follow the procedure
strictly. Careless servicing and testing may expose yourself to the microwave energy leakage.
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.
(b) Make the following safety checks on all ovens to be serviced before activating the magnetron or
other microwave source, and make repairs if 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.
AUG 04
MICROWAVE OVEN WITH
CONVECTION AND GRILL
FOREWORD

PRECAUTIONS

FILE No.
EM-SL100NUK
Product Code No.
EM-SL100NUK
RFERENCE No. SM2400021
1-437-602-36

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Summary of Contents for Sanyo EM-SL100NUK

  • Page 1 FILE No. SERVICE MANUAL MICROWAVE OVEN WITH EM-SL100NUK CONVECTION AND GRILL Product Code No. 1-437-602-36 EM-SL100NUK FOREWORD Read this manual carefully, especially precaution on microwave energy, and follow the procedure strictly. Careless servicing and testing may expose yourself to the microwave energy leakage.
  • Page 2 TABLE OF CONTENTS Adjustment Procedures........1 Circuit Diagram............ 4 Specifications............2 Test Procedures and Troubleshooting....5-15 Power Output Measurement........ 2 Disassembly Instructions........16-17 Precautions and Repair Service Tips....2 Exploded View and Parts list........18-23 Oven Control Panel..........3 Control Circuit Board..........24 Overall Circuit Diagrams........25 CAUTION MICROWAVE ENERGY PERSONNEL SHOULD NOT BE EXPOSED TO...
  • Page 3 2. SPECIFICATIONS - EM-SL100N 4.PRECAUTIONS AND REPAIR SERVICE TIPS PRELIMINARY Rated Power Consumption..Micro. 1450+15%W Conv. 1200+5/-10%W A.SINCE NEARLY 4,000 VOLTS EXIST IN Grill 1200+5/-10%W SOME CIRCUITS OF THIS MICROWAVE Dual 2600+ 15%W OVEN, REPAIRS SHOULD BE CARRIED (After 15mins.) OUT WITH GREAT CARE Microwave Output......
  • Page 4: Oven Control Panel

    5.oven control panel Notes : A "beep tone" sounds when a "pad" on the control panel is touched, to indicate a setting has been entered. When setting the controls you can keep your finger on a key until the desired set- ting is reached.
  • Page 5 6.CIRCUIT DIAGRAM EM-SL100N UK Version OVEN CONDITION DOOR : OPEN 0.75A WIRING COLOUR W : WHITE SC1 : PRIMARY INTERLOCK SWITCH BM : BLOWER MOTOR G : GREY SC2 : DOOR SENSING SWITCH CM : CONVEC. FAN MOTOR LB : LIGHT BLUE SC3 : INTERLOCK MONITOR SWITCH TM : TURNTABLE MOTOR BK : BLACK...
  • Page 6 7. TEST PROCEDURES AND TROUBLESHOOTING Filament Windings CAUTION - DISCONNECT THE POWER SUPPLY CORD FROM THE WALL OUTLET WHENEVER REMOVING THE CABINET FROM THE UNIT. PROCEED WITH THE TESTS ONLY AFTER DISCHARGING Secondary Winding THE HIGH VOLTAGE CAPACITOR AND REMOVING THE LEAD WIRES FROM THE PRIMARY WINDING OF THE HIGH VOLTAGE TRANSFORMER.
  • Page 7 COMPONENT CHECKOUT PROCEDURE RESULTS 1) Measure the resistance : Normal readings : With an ohmeter on Rx1 scale. a. Primary Winding ; Approximately 1.7 ohms. b. Filament Winding ; Less than 1 ohm. c. Secondary Winding ; Approximately 92 ohms. 2) Measure the resistance : Normal readings : With an ohm-meter on highest scale.
  • Page 8 COMPONENT CHECKOUT PROCEDURE RESULT Measure the resistance: Between the Pin 1 and Normal Reading: Pin 3 of connector S103 after disconnecting Approximately THERMISTOR it from the control circuit board with an 1800K ohms @ 20˚C ohm-meter on the highest scale. 1400K ohms @ 25˚C Normal Reading: CONVECTION...
  • Page 9 COMPONENT CHECKOUT PROCEDURE RESULTS Measure the resistance : Across two terminals with an ohm-meter on its highest scale. Normal reading : Indicates continuity. HV FUSE Abnormal reading : Indicates infinite ohms. Figure 10 Measure the voltage : Between test points TP-1,TP-2 CONTROL and ground.
  • Page 10 CHECKOUT PROCEDURE FOR SWITCHES Disconnect the lead wires from the switches and check the continuity of the switches, connecting an ohm-meter to its terminals. SWITCH CHECKOUT PROCEDURES DOOR OPEN DOOR CLOSE Primary Interlock Connect an ohm-meters leads to terminals "COM" and "NO"...
  • Page 17 8.DISASSEMBLY INSTRUCTIONS (2) Disconnect the 2 lead wires from the magnetron. (3) Remove 1 screw securing the duct to the - OVEN MUST BE DISCONNECTED FROM ELECTRI- magnetron, and take out the duct. CAL OUTLET WHEN MAKING REPLACEMENTS, (4) Remove 2 screws securing the stay plate, and REPAIRS, ADJUSTMENTS, AND CONTINUITY take out.
  • Page 18 4. The hinge screws should then be tightened to hold the (3) Remove power cord from cavity assembly by door in place, and the feeler gauges removed. lifting cord bush, moving it to the left and pulling it 5. The door gap should then be checked again using feeler away from cavity rear plate.
  • Page 20 CAVITY PARTS-B EM-SL100N Part No. Description Q'ty Part No. Description Q'ty 617 177 3156 Antenna Complete 14 617 179 0771 Damper Bct. 617 169 8930 Cavity Cover 15 617 179 0757 Shaft 6171289794 Thermistor Ass’y 16 617 177 3149 Lamp Plate 617 177 3040 Duct 17 617 177 3460 Cook Net 617 177 3033 Frame Rear Plate...
  • Page 21 SWITCHES AND MICROWAVE PARTS W 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? ? O 2 @ @ @ @ @ @ @ @ @ @ @ @ @ @ 6 K ? ? W 2 @ @ @ 0 M O &...
  • Page 22 MICROWAVE PARTS @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ f @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ f @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ f @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ @ f...
  • Page 23 DOOR PPARTS EM-SL100N KEY No PARTS NO Description Q'ty MO-D2447 Door Cover (Silver) MO-D2450 Door Glass 617 136 3890 Door Main Frame 617 103 8934 Hinge Ass'y 617 102 7495 Special Screw 617 135 6243 Choke Di-electric 617 136 3913 Door Panel 617 139 9530 Door Latch...
  • Page 24 CONTROL PANEL PARTS EM-SL100N KEY No PARTS NO Description Q'ty MO-D2451 Control Plate (Silver) MO-S1216 Keyboard MO-D2448 Control Base (Silver) 617 220 8305 PCB Complete 411 156 5502 SCR S-TPG PAN+F+S 411 064 2709 SCR TPG BIN 3x14 411 064 6608 SCR TPG BIN 3x8 617 135 8407 Latch Lever...
  • Page 25 10.CONTROL CIRCUIT BOARD EM-SL100N Model Version Spares No. M.Processor 617 218 9789 LM 8838 EM-SL100N -24-...
  • Page 26 EM-SL100N...
  • Page 27 Please Note All the information that appears in this service manual was correct at the time of production. SANYO Electric Manufacturing reserves the right to make changes to parts or processes in order to maintain their policy of continuing improvement.

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