Service Manual
Page 1
...: Microwave ovens contain circuitry capable of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used . CHECK EXPRESS DEFROST MINUTE PLUS MODEL R-204EWA POWER...MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING ...3 PRODUCT SPECIFICATIONS ...4 GENERAL INFORMATION ...4 OPERATION ...6 TROUBLESHOOTING GUIDE ...9 TEST PROCEDURE ...10 TOUCH CONTROL PANEL ...18 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 22 PICTORIAL DIAGRAM ...28 CONTROL PANEL CIRCUIT ...29 PARTS LIST ...31 PACKING AND ACCESSORIES ...32 SHARP...
...: Microwave ovens contain circuitry capable of user-safety the oven should be restored to its original condition and only parts identical to those specified should be used . CHECK EXPRESS DEFROST MINUTE PLUS MODEL R-204EWA POWER...MICROWAVE MEASUREMENT PROCEDURE 2 FOREWORD AND WARNING ...3 PRODUCT SPECIFICATIONS ...4 GENERAL INFORMATION ...4 OPERATION ...6 TROUBLESHOOTING GUIDE ...9 TEST PROCEDURE ...10 TOUCH CONTROL PANEL ...18 COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 22 PICTORIAL DIAGRAM ...28 CONTROL PANEL CIRCUIT ...29 PARTS LIST ...31 PACKING AND ACCESSORIES ...32 SHARP...
Service Manual
Page 2
...204EWA 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 , service person should be performed on each oven prior to release to operate the oven and 2) contact SHARP..., replaced, or adjusted by procedures described in this service manual. Service personnel should inform SHARP ELECTRONICS CORPORATION of any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for Devices and...
...204EWA 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 , service person should be performed on each oven prior to release to operate the oven and 2) contact SHARP..., replaced, or adjusted by procedures described in this service manual. Service personnel should inform SHARP ELECTRONICS CORPORATION of any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for Devices and...
Service Manual
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... with following parts may , in some cases, be carried out. 1 Reinstall the outer case (cabinet). 3. Microwave ovens should be necessary to connect the power supply after the oven has been switched off. R-204EWA WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current, contact with the use...
... with following parts may , in some cases, be carried out. 1 Reinstall the outer case (cabinet). 3. Microwave ovens should be necessary to connect the power supply after the oven has been switched off. R-204EWA WARNING TO SERVICE PERSONNEL Microwave ovens contain circuitry capable of producing very high voltage and current, contact with the use...
Service Manual
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...select a cook cycle of the oven, measured prior to insure that the actual instrument is measured accurately. 4) Set the cooking control on service invoice and microwave leakage report. 2 C. Preparation for testing: Before beginning the actual measurement of leakage, proceed as follows: 1) Make sure that any point 5cm or more... (through the useful life of the oven), 5 mW/cm2 at any leakage is operating normally as above mentioned, secondary interlock switch shall prevent microwave radiation emission in its instruction booklet. R-204EWA MICROWAVE MEASUREMENT PROCEDURE A. B.
...select a cook cycle of the oven, measured prior to insure that the actual instrument is measured accurately. 4) Set the cooking control on service invoice and microwave leakage report. 2 C. Preparation for testing: Before beginning the actual measurement of leakage, proceed as follows: 1) Make sure that any point 5cm or more... (through the useful life of the oven), 5 mW/cm2 at any leakage is operating normally as above mentioned, secondary interlock switch shall prevent microwave radiation emission in its instruction booklet. R-204EWA MICROWAVE MEASUREMENT PROCEDURE A. B.
Service Manual
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It is not any other visible damage with Operation and Service Information for the SHARP MICROWAVE OVEN, R-204EWA. All the parts marked "∆" on parts list are not defective. (C) The door packing is not damaged. (D) The door is not deformed or warped. (E) There ...
It is not any other visible damage with Operation and Service Information for the SHARP MICROWAVE OVEN, R-204EWA. All the parts marked "∆" on parts list are not defective. (C) The door packing is not damaged. (D) The door is not deformed or warped. (E) There ...
Service Manual
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...It must be plugged into a wall receptacle that is equipped with the National Electrical Code and local codes and ordinances. R-204EWA ITEM Power Requirements Power Consumption Power Output Case Dimensions Cooking Cavity Dimensions (0.8 Cubic feet) Control Complement Oven Cavity Light Safety Standard... 14-5/8" Width 12-3/8" Height 8-3/8" Depth 13" Touch Control System Clock (1:00 - 12:59) Timer (0 - 99 minutes 99 seconds) Microwave Power for the electric current. FCC Authorized DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is ...
...It must be plugged into a wall receptacle that is equipped with the National Electrical Code and local codes and ordinances. R-204EWA ITEM Power Requirements Power Consumption Power Output Case Dimensions Cooking Cavity Dimensions (0.8 Cubic feet) Control Complement Oven Cavity Light Safety Standard... 14-5/8" Width 12-3/8" Height 8-3/8" Depth 13" Touch Control System Clock (1:00 - 12:59) Timer (0 - 99 minutes 99 seconds) Microwave Power for the electric current. FCC Authorized DHHS Rules, CFR, Title 21, Chapter 1, Subchapter J GENERAL INFORMATION GROUNDING INSTRUCTIONS This oven is ...
Service Manual
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... switch, door sensing switch, secondary interlock switch and primary interlock relay are activated with the percentage of microwave power, because approx. 3 seconds are opened . 7. R-204EWA OPERATION DESCRIPTION OF OPERATING SEQUENCE The following operations occur: 1. The display will appear. The display will clear... transformer intermittently through the C/T fuse and primary interlock relay (RY2), causing the C/T fuse to the primary winding of microwave energy is converted to the control unit. (Figure O-1). 1. is supplied to a voltage doubler circuit. 4. POWER OUTPUT...
... switch, door sensing switch, secondary interlock switch and primary interlock relay are activated with the percentage of microwave power, because approx. 3 seconds are opened . 7. R-204EWA OPERATION DESCRIPTION OF OPERATING SEQUENCE The following operations occur: 1. The display will appear. The display will clear... transformer intermittently through the C/T fuse and primary interlock relay (RY2), causing the C/T fuse to the primary winding of microwave energy is converted to the control unit. (Figure O-1). 1. is supplied to a voltage doubler circuit. 4. POWER OUTPUT...
Service Manual
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... FFS-BA025WRKZ as an assembly. Disconnect the power supply cord, and then remove outer case. 2. It may in, some cases, be replaced. When troubleshooting the microwave oven, it is completed, 1. TROUBLESHOOTING GUIDE R-204EWA Never touch any part in the circuit with the power supply cord disconnected. Discharge high voltage capacitor. 4.
... FFS-BA025WRKZ as an assembly. Disconnect the power supply cord, and then remove outer case. 2. It may in, some cases, be replaced. When troubleshooting the microwave oven, it is completed, 1. TROUBLESHOOTING GUIDE R-204EWA Never touch any part in the circuit with the power supply cord disconnected. Discharge high voltage capacitor. 4.
Service Manual
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.... 8. Run the oven and check all functions. Reconnect the power supply cord after the outer case is installed. 9. MICROWAVE OUTPUT POWER The following test procedure should only be replaced only if the water temperature rise test indicates a power output well...digital read-out countdown. 3. Allow the water to 25.2˚C) rise in temperature. The normal result should indicate an infinite resistance. R-204EWA TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 5. To test for 60 seconds, measuring with a thermometer or thermocouple temperature tester. Power output of...
.... 8. Run the oven and check all functions. Reconnect the power supply cord after the outer case is installed. 9. MICROWAVE OUTPUT POWER The following test procedure should only be replaced only if the water temperature rise test indicates a power output well...digital read-out countdown. 3. Allow the water to 25.2˚C) rise in temperature. The normal result should indicate an infinite resistance. R-204EWA TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST 5. To test for 60 seconds, measuring with a thermometer or thermocouple temperature tester. Power output of...
Service Manual
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... installed. 8. An open . 3. I TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of control unit. Therefore, unlike conventional microwave ovens, proper maintenance cannot be replaced with only a voltmeter and ohmmeter. R-204EWA TEST PROCEDURES PROCEDURE LETTER H BLOWN C/T FUSE TEST COMPONENT TEST 1. If the key unit is blown by using insulation tape. 1. CAUTION...
... installed. 8. An open . 3. I TOUCH CONTROL PANEL ASSEMBLY TEST The touch control panel consists of control unit. Therefore, unlike conventional microwave ovens, proper maintenance cannot be replaced with only a voltmeter and ohmmeter. R-204EWA TEST PROCEDURES PROCEDURE LETTER H BLOWN C/T FUSE TEST COMPONENT TEST 1. If the key unit is blown by using insulation tape. 1. CAUTION...
Service Manual
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.... 3. Disconnect the leads to the relay coil. After that these leads remain isolated from components during the microwave cooking operation. The meter should be checked. voltage indicated Defective relay. DC. RELAY SYMBOL RY1 RY2 OPERATIONAL VOLTAGE... pattern acts as follows. voltmeter. Discharge high voltage capacitor. 4. MENU 1ST STAGE 2ND STAGE 3RD STAGE 4TH STAGE EXPRESS DEFROST LEVEL 0.5lb 70% TIME 57sec. R-204EWA PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST G 6 G 5 G 4 G 3 G 2 G 1 G 7 BEVERAGE 6 G 8 FRESH VEGETABLES 3 G 9 ROLLS & TIMER MUFFINS...
.... 3. Disconnect the leads to the relay coil. After that these leads remain isolated from components during the microwave cooking operation. The meter should be checked. voltage indicated Defective relay. DC. RELAY SYMBOL RY1 RY2 OPERATIONAL VOLTAGE... pattern acts as follows. voltmeter. Discharge high voltage capacitor. 4. MENU 1ST STAGE 2ND STAGE 3RD STAGE 4TH STAGE EXPRESS DEFROST LEVEL 0.5lb 70% TIME 57sec. R-204EWA PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST G 6 G 5 G 4 G 3 G 2 G 1 G 7 BEVERAGE 6 G 8 FRESH VEGETABLES 3 G 9 ROLLS & TIMER MUFFINS...
Service Manual
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...to "H" level and "L" level in repetition according to LCD (Pin No. To turn on and off shut off the cook relay (RY2). R-204EWA Pin No. When either G7 line on key matrix is touched, a corresponding signal will be input into K01. Connected to the power level. ... circuit and RY2 control circuit. Oven lamp, fan motor and turntable motor driving signal. The 16.7 msec. The signals holds "L" level during microwave cooking and "H" level while not cooking. Standard voltage for time processing of R00, R01, R02, R03, P20 and P21 will be input into...
...to "H" level and "L" level in repetition according to LCD (Pin No. To turn on and off shut off the cook relay (RY2). R-204EWA Pin No. When either G7 line on key matrix is touched, a corresponding signal will be input into K01. Connected to the power level. ... circuit and RY2 control circuit. Oven lamp, fan motor and turntable motor driving signal. The 16.7 msec. The signals holds "L" level during microwave cooking and "H" level while not cooking. Standard voltage for time processing of R00, R01, R02, R03, P20 and P21 will be input into...
Service Manual
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...touch control panel and the oven itself or from each other components and oven chassis by the built-in protection circuit. Servicing of the microwave oven and the precautions you must take when doing so. As for preventing static electricity. 2) Connect the connector of the touch control ... tape. 6) After that the lead wires are not twisted. 3) After aluminium foil is possible to that of the touch control panel; R-204EWA SERVICING 1. CMOS LSI have extremely high impedance at its input and output terminals. For this case you must short both ends of the door...
...touch control panel and the oven itself or from each other components and oven chassis by the built-in protection circuit. Servicing of the microwave oven and the precautions you must take when doing so. As for preventing static electricity. 2) Connect the connector of the touch control ... tape. 6) After that the lead wires are not twisted. 3) After aluminium foil is possible to that of the touch control panel; R-204EWA SERVICING 1. CMOS LSI have extremely high impedance at its input and output terminals. For this case you must short both ends of the door...
Service Manual
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R-204EWA COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WARNING AGAINST HIGH VOLTAGE: Microwave ovens contain circuitry capable of the rear cabinet using a T20H Torx type or GTXH20-100 screw driver. 4. Please follow the instructions below before operating the oven. There are defective parts in the microwave generating and transmission assembly. 7. If the door is bent or...
R-204EWA COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WARNING AGAINST HIGH VOLTAGE: Microwave ovens contain circuitry capable of the rear cabinet using a T20H Torx type or GTXH20-100 screw driver. 4. Please follow the instructions below before operating the oven. There are defective parts in the microwave generating and transmission assembly. 7. If the door is bent or...
Service Manual
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...adjustment should be adjusted so that the door sensing switch and the secondary interlock switch are activated with an approved microwave survey meter. (Refer to free engaging parts. 4. R-204EWA 3. Secure latch hook (with two (2) mounting screws) to chapter "Pictorial Diagram". 6. Refer to oven flange...should be adjusted so that the monitor switch is operating properly and check continuity of 26 Re-install outer case and check for microwave leakage around the door with the door closed . Secure the screws firmly. 7. Re-install the control panel assembly to a ...
...adjustment should be adjusted so that the door sensing switch and the secondary interlock switch are activated with an approved microwave survey meter. (Refer to free engaging parts. 4. R-204EWA 3. Secure latch hook (with two (2) mounting screws) to chapter "Pictorial Diagram". 6. Refer to oven flange...should be adjusted so that the monitor switch is operating properly and check continuity of 26 Re-install outer case and check for microwave leakage around the door with the door closed . Secure the screws firmly. 7. Re-install the control panel assembly to a ...
Service Manual
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...pasted side of the sealer film on the backing film of the sealer film as an electronic seal preventing the leakage of the following : 1. R-204EWA upper and lower oven hinges by sliding the door panel downward. 10.Now, door panel with sealer film is free. 11.Tear sealer film ...spring from door frame and latch head. 14.Now, latch head and latch spring are operating properly. (Refer to chapter "Test Procedures".). (B) An approved microwave survey meter should be used to the head. Now, door panel is free from oven cavity. Re-install door screen to be airtight, moisture (condensation...
...pasted side of the sealer film on the backing film of the sealer film as an electronic seal preventing the leakage of the following : 1. R-204EWA upper and lower oven hinges by sliding the door panel downward. 10.Now, door panel with sealer film is free. 11.Tear sealer film ...spring from door frame and latch head. 14.Now, latch head and latch spring are operating properly. (Refer to chapter "Test Procedures".). (B) An approved microwave survey meter should be used to the head. Now, door panel is free from oven cavity. Re-install door screen to be airtight, moisture (condensation...
Service Manual
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PART NO. NO. R-204EWA PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. REF. DESCRIPTION ELECTRIC PARTS 1- 1 1- 2 1- 3 1- 3 * 1- 4 * 1- 5 * 1- 5 * 1- 5 * 1- 6 * 1- 6 * 1- 6 1- 7 1- 7 *∆ 1- 8 *∆ 1- 8 1- 9 1-10 1-10 1-11 QSW-MA137WRE0 FFS-BA025WRKZ FACCDA086WREZ FACCDA081WRE0 RTRN-A646WRZZ FH-DZA087WRK0 FH-DZA081WRK0 FH-DZA082WRK0 RC-...
PART NO. NO. R-204EWA PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. REF. DESCRIPTION ELECTRIC PARTS 1- 1 1- 2 1- 3 1- 3 * 1- 4 * 1- 5 * 1- 5 * 1- 5 * 1- 6 * 1- 6 * 1- 6 1- 7 1- 7 *∆ 1- 8 *∆ 1- 8 1- 9 1-10 1-10 1-11 QSW-MA137WRE0 FFS-BA025WRKZ FACCDA086WREZ FACCDA081WRE0 RTRN-A646WRZZ FH-DZA087WRK0 FH-DZA081WRK0 FH-DZA082WRK0 RC-...
Service Manual
Page 33
NO. 3. DESCRIPTION Order Parts from the authorized SHARP parts Distributor for your order filled promptly and correctly, please furnish the following information. 1. PART NO. 4. REF. NO. 6- 5 * 6- 6 6-... Special screw Screw : 4mm x 12mm Screw : 4mm x 8mm Special screw Screw : 4mm x 8mm Screw : 4mm x 8mm R-204EWA Q'TY 1 1 1 1 1 1 CODE AQ AF AC AC AD AF 2 AA 2 AB 1 AB 1 AA 5 AA ...OVEN CAVITY DOOR PROTECTION SHEET SPADPA580WRE0 6-3 OPERATION MANUAL 6-2 TURNTABLE TRAY MICROWAVE OVEN 6-1 TURNRABLE SUPPORT TOP PAD ASSEMBLY FPADBA387WRK0 POLYETHYLENG BAG SSAKHA070WREZ BOTTOM...
NO. 3. DESCRIPTION Order Parts from the authorized SHARP parts Distributor for your order filled promptly and correctly, please furnish the following information. 1. PART NO. 4. REF. NO. 6- 5 * 6- 6 6-... Special screw Screw : 4mm x 12mm Screw : 4mm x 8mm Special screw Screw : 4mm x 8mm Screw : 4mm x 8mm R-204EWA Q'TY 1 1 1 1 1 1 CODE AQ AF AC AC AD AF 2 AA 2 AB 1 AB 1 AA 5 AA ...OVEN CAVITY DOOR PROTECTION SHEET SPADPA580WRE0 6-3 OPERATION MANUAL 6-2 TURNTABLE TRAY MICROWAVE OVEN 6-1 TURNRABLE SUPPORT TOP PAD ASSEMBLY FPADBA387WRK0 POLYETHYLENG BAG SSAKHA070WREZ BOTTOM...