Sharp R-2397 service manual Procedure for Entering to IC-2

Page 24

R-2397

PROCEDURE FOR CHECKING/CLEARING SERVICE COUNTS OF MICROWAVE OVEN

The following procedure enables the servicer to obtain the total service counts (cook cycles) for memory cooking, double quantity cooking and defrost. The maximum capacity of the counter is 999,999 counts, above which the counter will reset to "0". The counter will retain the total counts (will not clear) in the event of a power disruption.

1)Practice for checking total service counts (eg; 234,567 Counts).

• • • flashing • • • 0.1sec BUZZER

 

 

PAD

 

DISPLAY

INDICATOR

LED

PHONE

(Door close)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHECK

 

NUMBER

 

 

CHECK

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHECK

#1

82 68

 

 

CHECK

 

 

 

 

 

 

 

( user total count )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

#2

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLUME

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLUME

 

 

 

 

 

 

 

 

 

 

 

 

 

DOUBLE

 

 

2 34 56 7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUANTITY

 

( service total count )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

NUMBER

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( after 1 sec. )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

45

 

 

 

 

 

 

 

 

 

 

 

( filter used time )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2

 

NUMBER

2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( after 1 sec. )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2 00

 

 

 

 

 

 

 

 

 

 

 

( filter lim. time )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0 (No 10)

 

NUMBER

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

( after 1 sec. )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

35 43

2

 

 

 

 

 

 

 

 

 

 

( service total cook time )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHECK

 

 

 

 

 

 

 

 

 

#1: Denotes total service counts within the reach of user, of which checking and clearing practices are described in

this instruction manual.

#2: Denotes the procedure for the servicer to disable check- ing/clearing. This procedure is instructed to service per- sonnel only and is excluded from the operation manual.

2)Practice for clearing Service's counts

"" : Flicker / : 0.1 sec BUZZER

PAD ORDER

 

DISPLAY

 

PHONE

(Door close)

 

.

 

 

 

 

 

 

 

 

 

CHECK

"NUMBER"

.

 

CHECK

 

CHECK

 

82 68

 

"CHECK"

 

 

(User's Total Counts)

 

 

 

 

 

 

 

 

#1 VOLUME

 

82 68

 

"CHECK"

 

VOLUME

 

82 68

 

"CHECK"

 

DOUBLE

 

2 34 56

7

"CHECK"

 

QUANTITY

(Total Counts of Service)

 

SET

 

 

0

"CHECK"

 

0

 

 

0

"CHECK"

 

SET

 

 

0

"CHECK"

 

CHECK

 

.

 

 

 

 

 

 

 

 

 

#1: Denotes the procedure for the servicer to disable clear- ing. This procedure is instructed to service personnel only and is excluded from the operation manual.

PROCEDURE FOR ENTERING TO IC-2

When the control unit or IC-2 is exchanged, re-enter the constants of DEFROST and the memory pads 1~20, refer- ring to items 1 and 2 below.

1)How to enter the contents of DEFROST T = STG1 + STG2 + STG3

STG = A x T + B

1stage 10% power level

"" : Flicker / : 0.1 sec BUZZER

PAD ORDER

 

DISPLAY

 

PHONE

(Door close)

 

.

 

 

 

 

 

 

 

SET

 

.

 

 

SET

"NUMBER" .

 

 

(within 2 sec.)

 

 

 

 

#1 START

"NUMBER" .

 

 

DEFROST

1

0.00 DEF

 

 

 

 

 

 

 

9,9

1

0.99 DEF

 

x 2

 

 

(A)

 

 

 

 

 

 

 

SELECTATIME

1

0 DEF

 

 

 

 

 

 

 

9

1

90 DEF

 

 

 

#2

(+ - B)

 

 

 

 

 

 

 

 

 

DEF

"POWER"

 

SELECTAPOWER

1

90

100%

 

 

 

 

 

 

 

 

DEF

"POWER"

 

1

 

90

10%

 

SELECTATIME

2

0.00 DEF

 

 

0

2

0.00 DEF

 

 

 

 

(A)

 

 

 

 

 

 

 

SELECTATIME

2

0 DEF

 

 

0

2

0 DEF

 

 

 

 

(+ - B)

 

 

SELECTATIME

3

0 DEF

 

 

START

3

A DEF

 

 

SET

4

. DEF

 

 

SET

 

.

 

 

 

 

 

 

 

#1 : No key entry signal.

#2 : To set-B, touch the selectapower key twice.

2) How to enter the memory information

Example : Suppose cooking time 5 sec. and output power 100% are entered into the memory pad 1.

PAD ORDER

 

DISPLAY

PHONE

(Door close)

 

.

 

 

 

 

 

SET

 

.

 

SET

"NUMBER"

.

 

(within 2 sec.)

 

 

 

1

NUMBER 1

. 0

 

5

NUMBER 1

. 5

 

SET

"NUMBER"

.

 

SET

 

.

 

 

 

 

 

Enter the memory information into the memory pads 1 ~10 referring to above example. The memory information are given below.

22

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Contents Table of Contents Commercial Microwave Oven2397 Sharp Corporation OSAKA, Japan Commercial2397 General Important InformationSpecification Product DescriptionGeneral Information DescriptionInstallation Information Display and IndicatorsAppearance View Operating KeysOperation Sequence OFF ConditionMicrowave Cooking Condition Microwave Variable CookingFunction of Important Components Asymmetric Rectifier Exhaust ThermistorIntake Thermistor Magnetron ThermistorTroubleshooting Guide ServicingRemember to Check 3D Remember to Check 4RTest Procedure Possible Cause Defective Parts Plugged into wall outletTemperature of Intake Thermistor is High Test Procedures Procedure Component Test Letter Magnetron TestMicrowave Output Power IEC-705-1988 Around 20 C Power supply Voltage Rated voltageProcedure Letter Component Test High Voltage Transformer TestCarry OUT 3D Checks Carry OUT 4R ChecksProcedure Component Test Letter Switch TestHigh Voltage Capacitor Test Carry OUT 3D Checks Weak Point A018Fuse F6.3A Test Thermal CUT-OUT Test Carry OUT 3D ChecksTable Thermal Cut-out Test Monitor Resistor Test Carry OUT 3D ChecksProcedure Component Test Letter Magnetron Thermistor Test Exhaust Thermistor TestIntake Thermistor Test Motor Winding TestTouch Control Panel Assembly Test Min Cx ± 20% Cy ± 20% 5mHKEY Unit Test Test Procedures Contd To determine if the control unit or key pad is at faultRelay Test CircuityPower Supply Circuit Power Sync Signal Generating CircuitStop Switch Circuit Exhaust Air Temperature Detecting CircuitDescription of LSI LSIIZA646DR Pin No Signal Description Internal clock oscillation frequency setting inputPower source voltage Signal coming from touch keySound Voltage level control terminal Other Precautions ServicingShapes of Electronic Components Servicing of Touch Control PanelProcedure for Entering to IC-2 Practice for checking total service counts eg 234,567 CountsTo check the contents of defrost Flicker / 0.1 sec Buzzer Other Checking and Clearing PRO CedureComponent Replacement and Adjustment Procedure Outer Case RemovalHigh Voltage Components Removal To remove the components, proceed as followsMagnetron Removal High Voltage Transformer RemovalBlower Motor Removal Stirrer Motor Upper RemovalControl Panel Assembly and Control Unit Removal HOW to Release the Positive Lock ConnectorControl Panel Assembly Removal ProcedurePower Supply Cord Replacement Re-installAfter adjustment, make sure of the following Door Replacement and Adjustment Door ReplacementDoor Adjustment Choke Cover RemovalService Information Preparation for TestingMicrowave Measurement RequirementFigure O-1. Oven SChematic-OFF Condition High Voltage Components Circuit C d eFigure S-3. Printed Wiring Board Parts List Parts marked * are used in voltage more thanElectric Parts Cabinet PartsVCEAB31HW104M Oven Parts Door PartsMiscellaneous SCRE, Nuts and WashersHOW to Order Replacement Parts Model NumberREF. no DescriptionOven and Cabinet Parts Control Panel Parts Door Parts Not replaceable items 2397

R-2397 specifications

The Sharp R-2397 is a high-performance microwave oven that combines advanced technology with user-friendly features, making it a popular choice for modern kitchens. This model stands out due to its sleek design and efficient functionality, catering to both cooking enthusiasts and busy households alike.

One of the most notable features of the Sharp R-2397 is its powerful microwave cooking capabilities. With a wattage rating of 900 watts, it ensures that food is cooked evenly and quickly, allowing users to prepare meals in a fraction of the time compared to conventional ovens. The unit also offers multiple power levels, enabling precise cooking adjustments for various types of food, from defrosting to reheating and everything in between.

Another key characteristic of the R-2397 is its spacious interior. With a generous capacity of 23 liters, this microwave can accommodate larger dishes, making it suitable for families or individuals who enjoy hosting gatherings. The turntable feature promotes even cooking by rotating food continuously, ensuring that every inch is heated uniformly.

Additionally, the Sharp R-2397 is equipped with a range of convenient presets and auto-cook functions. These pre-programmed settings allow users to optimize cooking times for common dishes, such as popcorn, vegetables, and frozen meals, simplifying meal preparation and enhancing user experience. The intuitive control panel is designed to be user-friendly, ensuring that anyone can operate the microwave with ease.

Safety is also a significant consideration in the design of the Sharp R-2397. The unit comes with a child lock function, preventing accidental operation and ensuring that the oven is used safely in households with young children. This feature adds peace of mind for parents while using the appliance in their daily routines.

Moreover, the R-2397 incorporates a modern aesthetic that can fit into various kitchen styles. Its polished exterior and compact design make it both attractive and practical, with the added advantage of easy cleaning and maintenance.

In summary, the Sharp R-2397 is a versatile microwave oven that offers a blend of power, efficiency, and user-centric features. With its high wattage, spacious interior, smart presets, and safety measures, it is an excellent addition to any kitchen, catering to everyday cooking needs and helping to simplify meal times. Whether reheating leftovers or cooking a new recipe, the Sharp R-2397 sets itself apart as a reliable kitchen companion.