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Most Recent Sharp R-204EWA Questions
Flashing 00:00 & Now The Microwave Will Not Start Or Clear
(Posted by brickadams56 2 years ago)
Flashing Display
The display on the microwave is flashing 88:88 all the time. None of the buttons on the control pane...
The display on the microwave is flashing 88:88 all the time. None of the buttons on the control pane...
(Posted by cheeze74 3 years ago)
What's The Wattage??
(Posted by bburt1999 3 years ago)
Power Level Operation
How do I change the power level on this microwave? Pressing the power level button several times doe...
How do I change the power level on this microwave? Pressing the power level button several times doe...
(Posted by kagunders 9 years ago)
Sharp R-220ewa Household Microwave Oven Manual.
How do I find an owner's manual for the Sharp R-220ewa household microwave oven. Sharp's own website...
How do I find an owner's manual for the Sharp R-220ewa household microwave oven. Sharp's own website...
(Posted by guyca 10 years ago)
Popular Sharp R-204EWA Manual Pages
Service Manual - Page 1
...INSIDE FRONT COVER WARNING TO SERVICE PERSONNEL ...1 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...
Service Manual - Page 2
... the specified limit, contact SHARP ELECTRONICS CORPORATION immediately @1-800-237-4277. Service personnel should be instructed not to use the unit until the oven has been brought into compliance. If microwave emissions level is released to the owner. (e) A microwave leakage check to verify compliance with the door open, service person should 1) tell the user not to operate the...
Service Manual - Page 3
... PERSONNEL
Microwave ovens contain circuitry capable of the power
transformer. 5. Danger High Voltage
Before Servicing
1. Discharge high voltage capacitor.
, and then
WARNING:RISK OF ELECTRIC SHOCK. Whenever troubleshooting is
installed. 4. After that the leads remain isolated from components during testing.
2. Open the door and block it open . 3.
Reconnect all instructions...
Service Manual - Page 4
... placing of this standard load in its instruction booklet. Preparation for leakage at any leakage is completed, replace it perpendicular to acquisition by the closed... survey is measured accurately. 4) Set the cooking control on service invoice and microwave leakage report.
2
C. R-204EWA
MICROWAVE MEASUREMENT PROCEDURE
A. NOTE: After servicing, record data on Full Power ...
Service Manual - Page 5
... INFORMATION OPERATION TROUBLESHOOTING GUIDE AND TEST PROCEDURE TOUCH CONTROL PANEL COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE WIRING DIAGRAM PARTS LIST
DANGER Certain initial parts are used at voltages more than 250V. All the parts marked "*" on parts list may cause undue microwave exposure, by trained service personnel. SERVICE MANUAL
MICROWAVE OVEN
R-204EWA
FOREWORD
This Manual has...
Service Manual - Page 8
... A.C.
The microwave energy produced by the control unit within a 32 second time base. The circuits to be cooked.
5. POWER OUTPUT REDUCTION
If the oven is set the clock,... A.C.
on the high voltage winding.
3. The oven will show flashing "88:88". 2. R-204EWA
OPERATION
DESCRIPTION OF OPERATING SEQUENCE
The following is a description of component functions during a cook cycle,...
Service Manual - Page 11
.... Reconnect all functions.
9
TROUBLESHOOTING GUIDE
R-204EWA
Never touch any part in the "Test Procedure "section.
Open the door and block it open . 3. Disconnect the leads to connect the power supply cord after the outer case is replaced, the monitor switch must also be performed. After that a specific test be replaced.
Discharge high voltage capacitor...
Service Manual - Page 16
... C/T fuse is blown when the door is blown by unit replacement is comprised of control unit.
Reinstall the outer case (cabinet). 7. Key Unit.
In this service manual, the touch control panel assembly is divided into two units, Control Unit and Key Unit, and troubleshooting by improper switch operation, the C/T fuse and monitor switch must...
Service Manual - Page 18
...that these leads remain isolated from components during the microwave cooking operation. Remove the outer case and check voltage... the relay RY2 on the PWB, this model is connected to the primary on the control... lamp / Turntable motor / Cooling fan motor Power transformer
8. Re-install the outer case (cabinet). 13. R-204EWA
PROCEDURE LETTER
TEST PROCEDURES COMPONENT TEST
G 6
G 5
G 4
...
Service Manual - Page 21
... the LSI, DC voltage in accordance with the Model in the LSI.
A pulse signal is applied to set by inserting the resistor oscillation circuit with respect to... OCS4 terminal. Key strobe signal. Signal applied to drive the A/D converter in the following table. Key strobe signal. Signal applied to touch-key section. R-204EWA...
Service Manual - Page 23
... 4) Re-install the outer ...the integral part of the...models, check and repair all function. approx. 1M ohm
2.
Connect an external power source to the power input terminal of the circuits. R-204EWA
SERVICING
1. When handling these leads remain isolated from an external power source.
(1) Servicing...MICROWAVE OVEN IS STILL LIVE DURING SERVICING AND PRESENTS A HAZARD . B. On some models...
Service Manual - Page 24
... the two (2) screws from the unit.
22
Special Screw Screw Driver Type: TORX T20 H or
GTXH20-100
Figure C-1. R-204EWA
COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
WARNING AGAINST HIGH VOLTAGE:
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following parts may result in the outer case cabinet. 4.
WARNING FOR WIRING
To...
Service Manual - Page 26
...the any sharp edges on the control panel frame surfaces
completely with the cutting pliers. 2. Re-install the turntable ...is free. Washer and O-ring Installation and Grease Applying.
Remove the turntable and turntable support from the oven cavity. 9. ... case. 2. R-204EWA
CONTROL PANEL ASSEMBLY REMOVAL
1. Remove the one (1) screw holding the chassis support
to the control panel...
Service Manual - Page 29
...on the door panel.
C-9. 2. REINSTALLATION 1. Door Replacement
SEALER FILM
Installation 1. Release door panel from ten (10) tabs of microwave energy from door frame and latch head. 14....204EWA
upper and lower oven hinges by pushing. This function does not require that latch head goes through center of the sealer
film as an electronic seal preventing the leakage of microwave...
Service Manual - Page 33
... in the Service Policy. REF. REF. MODEL NUMBER 2. NO. 3.
DESCRIPTION
Order Parts from the authorized SHARP parts Distributor for your order filled promptly and correctly, please furnish the following information.
1. PACKING AND ACCESSORIES
INTO THE OVEN CAVITY
DOOR PROTECTION SHEET SPADPA580WRE0 6-3 OPERATION MANUAL
6-2 TURNTABLE TRAY MICROWAVE OVEN
6-1 TURNRABLE SUPPORT
TOP PAD...
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