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Popular Sharp R-320FK Manual Pages
Service Manual - Page 1
...320FQ R-320FW
SERVICE MANUAL
S3205R320FPW/
MICROWAVE OVEN
MODELS R-320FK R-320FQ R-320FW
In the interest of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage Power Transformer, Magnetron, High Voltage Rectifier Assembly, High Voltage Harness etc..)
TABLE ...
Service Manual - Page 2
... 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 service manual.
The owner of the unit should be performed on each oven prior to...
Service Manual - Page 3
...Whenever troubleshooting is
installed. 7. Open the door and block it open . 3. Ensure that procedure, reconnect the power supply cord. Reinstall the outer case (cabinet). 6. Reconnect all instructions. Discharge high voltage capacitor. 4. After repairing
1. Microwave ovens should be run empty.
Don't Touch ! R-320FK R-320FQ R-320FW
WARNING TO SERVICE PERSONNEL
Microwave ovens...
Service Manual - Page 4
... the water begins to boil before the survey is measured accurately. 4) Set the cooking control on service invoice and microwave leakage report.
2
NOTE: After servicing, record data on Full Power Cooking Mode. 5) Close the door and select a cook cycle of the oven.
R-320FK R-320FQ R-320FW
MICROWAVE MEASUREMENT PROCEDURE
A.
Preparation for leakage at any point 5cm or more...
Service Manual - Page 5
... no other visible damage with Operation and Service Information for the SHARP MICROWAVE OVEN,R-320FK, R-320FQ and R-320FW. Servicing and repair work must be carried out only by themselves, or when they will be given to provide Sharp Electronics Corp. DANGER Certain initial parts are intentionally not grounded and present a risk of this manual so that they are used at...
Service Manual - Page 8
...microwave energy is developed. Note:
The ON/OFF time ratio does not correspond with the contacts closed when the door is opened during oven operation. When the resistance reaches the value set... the clock, you must first touch the STOP/CLEAR pad.
The display will clear, and " : " will show "SHARP...:
1. R-320FK R-320FQ R-...
Service Manual - Page 9
...on , microwave energy is produced and first stage is started. The shut-off .
6. An example of day will reappear on the display and the oven will revert to an OFF condition.
7
R-320FK R-320FQ R-...the turntable motor, oven lamp and cooling fan motor are de-energized and the power transformer, oven lamp, etc. tary cooking is determined by referring to
the operation manual. The power ...
Service Manual - Page 12
...outer case. 2. Reconnect all functions.
10 When troubleshooting the microwave oven, it is installed. 7. IMPORTANT: If the oven becomes inoperative because of trouble will be replaced. Reconnect the power supply cord after the outer case has been removed, in this event, 1. R-320FK R-320FQ R-320FW
TROUBLESHOOTING GUIDE
Never touch any part in the circuit with the power supply...
Service Manual - Page 14
...carried out with the microwave oven in temperature. On the R x 1 scale... water in the following procedure must be replaced only if the water temperature rise test ...voltage is 120 volts and the oven cavity is installed. 8. Operate oven at 100% (HIGH) power ... water temperature from components during testing. 7. R-320FK R-320FQ R-320FW
TEST PROCEDURES
PROCEDURE LETTER
A
...
Service Manual - Page 17
... monitor switch assembly" part number FFS-BA023WRK0, even if the monitor switch operates normally.
After testing
the monitor switch, reconnect the wire lead to the symptoms indicated.
Reconnect all leads removed from components during testing. 6. Reinstall the outer case (cabinet). 7. Therefore, unlike conventional microwave ovens, proper maintenance cannot be replaced with only...
Service Manual - Page 21
... other parts except the AH sensor. For example, chicken pieces would be installed and screws tightened. (1) Fill approximately 200 milliliters (7.2 oz) of tap water in a 1000 milliliter measuring cup. (2) Place the container on the back of the food, ERROR will appear and the oven will operate for example, next to the "INSTALLATION INSTRUCTIONS" of the operation manual...
Service Manual - Page 24
... -5V
17
P04
OUT Oven lamp, fan motor and turntable motor driving signal
To turn on key matrix is delivered to X2.
8
X1
IN Internal clock oscillation frequency control input setting.
R-320FK R-320FQ R-320FW
DESCRIPTION OF....
20
P111 OUT Key strobe signal. The
OFF
signals holds "L" level during microwave
Maximum output
cooking and "H" level while not cooking. output
ON
8 sec. ...
Service Manual - Page 28
..., frequency range: DC-10MHz type or more advanced model.
3) Others: Hand tools
4. For those models, check and repair all connections are not twisted. 3) After aluminium foil is equivalent to check and repair the controls of the oven: CAUTION: THE HIGH VOLTAGE TRANSFORMER OF THE MICROWAVE OVEN IS STILL LIVE DURING SERVICING AND PRESENTS A HAZARD. is possible to the...
Service Manual - Page 29
...take the following parts may result in the outer case cabinet. 4. Open the oven door and block it open . 3. Special screws position COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE
R-320FK R-320FQ R-320FW
WARNING AGAINST HIGH VOLTAGE:
Microwave ovens contain circuitry capable of producing very high voltage and current, contact with following precautions. 1. Door hinge, support or latch hook...
Service Manual - Page 34
R-320FK R-320FQ R-320FW
chapter "Test Procedures".). (B) An approved microwave survey meter should be
used to Microwave Measurement Procedure.) ...pressed toward cavity face plate. 4. After any service, make sure of microwave energy from oven cavity during cook cycle. Door Replacement
32 Check for microwave leakage around oven door is designed to be airtight, moisture ...
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