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File No : File No : File No : File No : File No :
SUPPLEMENT OF SUPPLEMENT OF SUPPLEMENT OF SUPPLEMENT OF SUPPLEMENT OF Micr Micr Micr Micr Microwave Oven owave Oven owave Oven owave Oven owave Oven EM-P842WS (U.S.A.) EM-P842WS (U.S.A.) EM-P842WS (U.S.A.) EM-P842WS (U.S.A.) EM-P842WS (U.S.A.)
SER SER SERVICE MANUAL VICE MANUAL VICE MANUAL
SER SERVICE MANUAL VICE MANUAL
P P P P Pr r r r roduct Code No. oduct Code No. oduct Code No. oduct Code No. oduct Code No. 437 480 04 437 480 04
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In the area emitting the highest reading, switch the meter CAUTION CAUTION CAUTION CAUTION CAUTION to SLOW RESPONSE, and take a reading for minimum of three (3) seconds. We recommended the pattern outline For micr For micr For micr For micr For microwave ener owave ener owave ener owave ener owave energy emission gy emission gy emission gy emission gy emission shown below when the door surface is surveyed. On every service calls, check for microwave energy NOTE NOTE NOTE NOTE NOTE : Periodical
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- TABLE OF CONTENTS - Specifications .................................................................. 1 Power Output Measurement ........................................... 1 Exploded View and Parts List ................................ 3 8 ~ Circuit Diagram ............................................................... 2 Overall Circuit Diagram .......................................... 9 1. SPECIFICA 1. SPECIFICA 1. SPECIFICA 1. SPECIFICA 1. SPECIFICATIONS TIONS TIONS TIONS TION
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3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM 3. CIRCUIT DIAGRAM Figure 1 Figure 1 Figure 1 Figure 1 Figure 1 WIRING COLOR O : ORANGE B K : BLACK R : RED BL : BLUE W : WHITE Y : YELLOW - 2 - - 2 -
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4. 4. 4.EXPLODED VIEW AND P EXPLODED VIEW AND P EXPLODED VIEW AND PAR AR ARTS LIST TS LIST TS LIST 4. 4.EXPLODED VIEW AND P EXPLODED VIEW AND PAR ARTS LIST TS 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 Key Part No. Description Q’ty Part No. Description Q’ty No. No. 1 617 186 5943 Cabinet 1 14 617 120 8481 Insul
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SWITCHES AND MICROWAVE 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 Key Part No. Description Q’ty Part No. Description Q’ty No. No. 17 617 197 7417 Blower Motor 1 1 411 082 5201 SCR TPG TRS 4 x 10 Z1 9 2 617 213 6936 H.V. Transformer,*** N6T-P691 1 18 411 082 5201 SCR TPG TRS 4 x 10 Z1 2 19 617 196 8507 Blower Fan 1 120V 60H
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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 Key Part No. Description Q’ty Part No. Description Q’ty No. No. 1 617 171 5026 Door Cover*** 1 5 617 144 4636 Door Sheet 1 2 617 199 5351 Door Panel*** 1 6 411 054 1903 Nut Hex + Flg W / SRT 5*** 2 3 617 199 2373 Door Main Frame*** (Also 1 7 617 124 0955 Hinge, Upper*** 1 ord
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CONTROL PANEL 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 Key Part No. Description Q’ty Part No. Description Q’ty No. No. 1 617 222 1434 Control Sheet*** (Also order 1 4 617 171 5828 Control Frame*** 1 Touch Key Board when replacing 5 617 144 4780 Control Base*** 1 Control Sheet) 6 411 160 6205 SCR TPG TRS+SRT 4 x 10 Z1 1 2
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CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD 617 221 5518 617 221 5518 (Part No. 617 221 5518 617 221 5518 617 221 5518) 34700 34700 34700 34700 34700 - 7 -
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CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD CONTROL CIRCUIT BOARD 617 221 5518 617 221 5518 (Part No. 617 221 5518 617 221 5518 617 221 5518) Key No. Order Part No. Description Q’ty Key No. Order Part No. Description Q’ty INTEGRATED CIRCUIT. RESISTORS. IC11 409 452 0901 IC LM8846-124FP 1 R105 401 012 4404 Carbon, 100 ohms 1 ± 5%, 1/4W. R101, 112 401 012 5609 Carbon, 1K ohms 7 121 125 ± 5%, 1/4W. ~ R15, 102, 401 012 6903 Carbon, 10K ohms 4 TRANSISTORS.
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5. 5. 5. 5. 5.OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM OVERALL CIRCUIT DIAGRAM - 9 -
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File No : File No : File No : File No : File No : SER SER SERVICE MANUAL VICE MANUAL VICE MANUAL Micr Micr Microwave Oven owave Oven owave Oven EM-P672WS EM-P672WS EM-P672WS (U.S.A.) (U.S.A.) (U.S.A.) SER SERVICE MANUAL VICE MANUAL Micr Microwave Oven owave Oven EM-P672WS EM-P672WS (U.S.A.) (U.S.A.) P P P P Pr r r r roduct Code No. oduct Code No. oduct Code No. oduct Code No. oduct Code No. 437 482 03 437 482 03 437 482 03 437 482 03 437 482 03 CAUTION CAUTION CAUTION
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In the area emitting the highest reading, switch the meter CAUTION CAUTION CAUTION CAUTION CAUTION to SLOW RESPONSE, and take a reading for minimum of three (3) seconds. We recommended the pattern outline For micr For micr For micr For micr For microwave ener owave ener owave ener owave ener owave energy emission gy emission gy emission gy emission gy emission shown below when the door surface is surveyed. On every service calls, check for microwave energy NOTE NOTE NOTE NOTE NOTE : Periodical
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- TABLE OF CONTENTS - Adjustment Procedures ................................................... 1 Test Procedures and Troubleshooting.................... 4 10 ~ Specifications .................................................................. 2 Disassembly Instructions ....................................... 11 14 ~ Power Output Measurement ........................................... 2 Exploded View and Parts List ................................ 15 20 ~ Precautions and Repair Service Tips ..
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2. 2. 2. SPECIFICA SPECIFICA SPECIFICATIONS TIONS TIONS 4. 4. 4. 4. 4.PRECAUTIONS AND REP PRECAUTIONS AND REP PRECAUTIONS AND REP PRECAUTIONS AND REP PRECAUTIONS AND REPAIR SER AIR SER AIR SER AIR SER AIR SERVICE TIPS VICE TIPS VICE TIPS VICE TIPS VICE TIPS 2. 2. SPECIFICA SPECIFICATIONS TIONS PRELIMINAR PRELIMINAR PRELIMINAR PRELIMINAR PRELIMINARY Y Y Y Y Rated Power Consumption ..1650W. A. A. A. A. A. SINCE NEARL SINCE NEARL SINCE NEARL SINCE NEARL SINCE NEARLY 2,000 VOL Y 2,000 VOL Y 2,000 VO
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5. CIRCUIT DIAGRAM Figure 2 Figure 2 Figure 2 Figure 2 Figure 2 WIRING COLOR BK : BLACK O : ORANGE BL : BLUE W : WHITE Y : YELLOW R : RED SECONDARY INTERLOCK PRIMARY INTERLOCK DOOR INTERLOCK MONITOR SENSING RELAY 2 SWITCH MADE • SWITCH SWITCH SWITCH CM OM CM O CM O CO CT ONDIN IO NC O NONO N DOOR OPEN • DOOR CLOSE ••• - 3 -
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Filament Windings 6. TEST PROCEDURES AND TROUBLESHOOTING 6. TEST PROCEDURES AND TROUBLESHOOTING 6. TEST PROCEDURES AND TROUBLESHOOTING 6. TEST PROCEDURES AND TROUBLESHOOTING 6. TEST PROCEDURES AND TROUBLESHOOTING CAUTION CAUTION CAUTION CAUTION CAUTION - DISCONNECT THE POWER SUPPL - DISCONNECT THE POWER SUPPL - DISCONNECT THE POWER SUPPL - DISCONNECT THE POWER SUPPL - DISCONNECT THE POWER SUPPLY CORD FROM Y CORD FROM Y CORD FROM Y CORD FROM Y CORD FROM THE W THE W THE W THE W THE WALL OUTLE
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COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESULT T T T T Measure the resistance : Across two terminals Normal reading : with an Ohm-Meter on highest scale. Momentarily indicates several Ohms, HIGH-VOLTAGE and gradually returns to 10 Meg-Ohms. CAPACITO
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COMPONENT COMPONENT COMPONENT COMPONENT COMPONENT CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE CHECKOUT PROCEDURE RESUL RESUL RESUL RESUL RESULT T T T T When When not Measure the resistance between terminals of touched touched Resistance FPC connector after removing it from S101. value Less than More than (Figure 9). 1K Ohms 1 MEG Ohms
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- 7 - B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING B. TROUBLESHOOTING STEP STEP SEQUENCE SEQUENCE SEQUENCE RESUL RESUL RESUL RESUL RESULT T T T T STEP STEP STEP SEQUENCE SEQUENCE (1) PROBLEM No display or mis-display in the display window by touching the keys. Replace it Runs Check continuity of Fuse, 0 Volt. a if necessary. Thermal Protector for Magnetron, Thermal Protector for Cavity and AC Power Cord. If the Fuse is blown, see “E, REMOVING FUSE” on page 13
