Sharp R-5960 Service Manual

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R-5960

SHARP SERVICE GUIDE

S9515R5960H//

MICROWAVE OVEN

R-5960

MODEL

In the interest of user safety, this equipment should be restored to its

original condition and only the prescribed parts should be used.

Side

FOREWORD ..................................................................................................................................................................................... 1

CAUTION, MLWAVE RADIATION ................................................................................................................................................... 1

THUMB index ........................................................................................................................................................... - ...................... 1

DEVICE DESCRIPTION................................................................................................................................................................... 2

OPERATING INSTRUCTIONS.................................................................................................................................................... 3

OPERATION ............................................................................................................................................................................... 8~13

MAINTENANCE ......................................................................................................................................................................... 14-20

SENSOR CONTROL .................................................................................................................................................................. 20-31

REPLACEMENT AND ADJUSTMENT OF COMPONENTS ..................................................................................................... 32 ~39

MICROWAVE MEASUREMENT .................................................................................................................................................... 40

SCHEMATIC CIRCUIT DIAGRAM ............................................................................................................................................... 41

PICTORIAL WIRING DIAGRAM..................................................................................................................................................42,43

WIRING DIAGRAM FOR CONTROL PANEL ............................................................................................................................ 44,45

PRINTED CIRCUIT BOARD .......................................................................................................................................................... 46

PACKAGING AND ACCESSORIES .......................................................................................................................................... 47,48

SPARE PARTS LIST .................................................................................................................................................................. 49-58

MAINTENANCE INFORMATION FOR MAGNETRON, AIR DUCT AND HOHLLE1TER.............................................................59,60

SHARP CORPORATION

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Summary of Contents for Sharp R-5960

Page 1: Table Of Contents
R-5960 SHARP SERVICE GUIDE S9515R5960H// MICROWAVE OVEN R-5960 MODEL In the interest of user safety, this equipment should be restored to its original condition and only the prescribed parts should be used. TABLE OF CONTENTS Side FOREWORD ..................................... 1 CAUTION, MLWAVE RADIATION ..............................1 THUMB index ................................
Page 2 R=5960 Si -F...
Page 3: Foreword
' DEVICE DESCRIPTION ; M1KR0WELLENGERAT R-5960 FOREWORD This manual has been prepared to provide Sharp service technicians with complete operation and maintenance information for the R-5960 microwave oven. It is therefore recommended that customer service technicians read the entire text of this manual carefully so that they are able to provide satisfactory customer service.
Page 4: Device Description
R-5960 DEVICE DESCRIPTION EXPLANATION OF MICROWAVE COOKING The Sharp microwave device uses microwave energy to generate heat Materials with high moisture content, such as most foods, absorb in the food. Unlike conventional ovens, microwave energy cooks microwave energy. When microwave energy enters the food at a without the supply of external heat energy.
Page 5 R-5960 BETR1EBSANWEISUNG HANDLING OF THE SENSOR CONTROL UNIT The new microwave oven with sensor control unit uses a microprocessor; this is the electronic "brain" that enables a large number of cooking programs that could not be realized with conventional operation. The Cerate is operated by touching the various sensors, which are sensibly arranged on the control unit.
Page 6 FU5960 3. The clock sensor |0] again (be- © stir). A A A A A A <!> The clock is now set and continuously shows the time of day. NOTE: This is a 12-hour clock. I £g| appear on the display when an attempt is made to enter an incorrect time. Becomes the .
Page 7 For some foods, the best results can be achieved if they are cooked more slowly with low cooking power. Your cookbook lists the recommended settings for each recipe. Details on how to use the adjustable cooking controller can be found in the corresponding chapter of your Sharp microwave cookbook. Example: To cook at g (cooking) for 2 minutes, 15 seconds.
Page 8 ' R'5960 When the timer reaches 0, all indicators go out and a beep is heard. The time of day will appear on the display again. NOTE: If @ (voile power) is selected as the last cooking sequence, it is not necessary to touch the @(voile power) sensor. If §...
Page 9 R-5960 ~i ~I Cl 1- - C -1 4. The sensor | +i min. | (another minute of +1 min. sensor). i & Ai A <t> The cooking time is increased by one minute and continuously reduced to zero. When the timer reaches 0, all indicators go out and a beep is heard. The time of day appears on the display again.
Page 10: Operation
R65960 OPERATION DESCRIPTION OF THE SEQUENCE OF OPERATIONS through a waveguide into the cooking chamber feed box and then Below is a complete description of the component function during the operation of the microwave oven. into the cooking chamber where the food to be heated is located. 9.
Page 11 R-5960 A (COOKING), A (COOKING AWAY), A(DEFROSTING) or T^R Voile performance throughout the cooking (KEEPING WARM) time. Enter the program of the desired cooking method by rubbing the approx. 70% of full numeric sensors and the sensor buttons uJ' (COOKING), -A power.
Page 12 DESCRIPTION AND FUNCTION OF THE COMPONENTS COOKING CHAMBER LAMP THERMAL FUSE The cooking chamber lamp is used to illuminate the cooking chamber, The thermal fuse is located in the cooking chamber and is used to so that the food can be observed through the door window without prevent damage to the magnetron in the event of overheating of the having to open the door.
Page 13 R-5960 220V-50 Hz ANTI- INTERFERENCE FUSE 7A FILTER COIL UNIT 250V -------------------------------------- MONITOR SWITCHES THERMAL MONITORWIOERSTSTAND FUSE COOKING BOTTOM CHAMBER LAMP "So LATCH SWITCH UPPER LATCH SWITCH (All STOP SWITCH I Cl AC3 COOK- RELAY TRANSFORMER (-vw' (for control unit)
Page 14 220V ~50 Hz ANTI- FUSE 7A INTERFERENCE FILTER COIL UNIT 250V -------- •-Wr* ---------------- MONITOR SWITCHES MONITOR RESISTANCE THERMAL FUSE COOKING CHAMBER LAMP A LOWER/LATCH: BSWITCH UPPER DEADBOLT SWITCH FM/OL/TTM (A) I STOP CONTROL SWITCH RELAYS __ [JB' T] ------ XC1 AC3 COOKIN TRANSFORMER (for...
Page 15 R-5960 T0ROFFNUNGSMECHANISMUS MONITOR SWITCHES The Tiir opens by pressing the door opening button on the control The monitor switch is located above the upper latch hook. It is activated by panel (see Figure 3). When the door opening button is pressed, the...
Page 16 MAINS TRANSFORMER High-voltage capacitor: The capacitor is able to store energy on one The mains transformer contains three windings: a primary winding, half of the grid cycle and release it together with the mains transformer output to generate a negative DC current of approximately 3700V, secondary winding and high-voltage winding.
Page 17: Maintenance
R-5960 ^5960 MAINTENANCE TROUBLESHOOTING TABLE When troubleshooting the microwave oven, it is recommended to "Priifverfahren" section. carry out checks according to the sequence of operation. For many WICHT1G: If the microwave oven fails due to a blown fuse in the of the possible causes, a specific test must be carried out.
Page 18 TROUBLESHOOTING TABLE (CONTINUED) PROFATIVE PROCEDURE OR DISRUPTION POSSIBLE CAUSE INTERLOCUTORY REVISION COOKING STATE (CONTINUED) The cooking chamber lamps did not shine Blown fuse Replace both cooking chamber lamps at all. Exposed wiring to the cooking chamber lamp Checking and repairing wiring holder Procedure K The cooking indicator lights up in the...
Page 19 ISW60 TEST METHODS PROCEDURAL COMPONENT PROVOCATION LETTER INSPECTION BY MAGNETRON UNIT THE HIGH-VOLTAGE CAPACITOR BEFORE TOUCHING 1ANY M!KRO SHAFT DEVICE COMPONENTS OR THE VE. WIRING UNLOADED. To check for an exposed heating wire, isolate the magnetron from the high-voltage circuit. In the case of a current continuity test on the heating wires of the magnetron, less than 1 ohm should be displayed.
Page 20 PROF PROCEDURE (CONTINUED) PROCEDURAL COMPONENT PROVOCATION LETTER A (cont'd) Calculation of output power: Microwave output power ..P (W) = 70 x AT (°C) (ATL + ATR) . ,. " average temperature rise. ATL = (TL2 - TL,) = (TR2 -TR,) TL2 : Water temperature after heating in the left cooking cup.
Page 21 R-5960 PROF PROCEDURE (CONTINUED) PROCEDURAL COMPONENT TESTING LETTER PRO OF HIGH VOLTAGE CAPACITOR DISCHARGE THE HIGH VOLTAGE CAPACITOR BEFORE PIPING ANY MICROWAVE APPLIANCE COMPONENTS OR WIRING. When the capacitor is open, no high voltage is supplied to the magnetron. Disconnect the input lines and use the ohmmeter to check for short-circuit or open circuit between the terminals.
Page 22 PROF PROCEDURE (CONTINUED) PROCEDURE COMPONENT PROVOCATION BOOK BLOWN FUSE If the monitor/upper latch switch circuit fuse blows when the door is opened, first check the top latch switch and monitor switch before renewing the fuse. (Refer to test methods F and L). If the fuse blows due to an incorrect switch function, replace the switch and the fuse at the same time.
Page 23 FL-5960 PROFESSIONAL PROCEDURE (TRANSLATION) PROCEDURE COMPONENT PROVOCATION BOOK MONITOR SWITCH TESTING Before performing this test, it is necessary to check whether the upper latch switch is working properly. Now one supply line of the ohmmeter is connected to the monitor switch connection (NC) and the other to the power transformer connection, on which the white and black wires of the wiring harness hang.
Page 24: Sensor Control
FL-5960 PROFESSIONAL PROCEDURE (TRANSLATION) MAINS TRANSFORMER WHITES AND MONITOR SWITCHES MONITOR SWITCH LEVER UPPER LATCH HOOK LATCH SWITCH SCREWDRIVER SENSOR CONTROL 1. DESCRIPTION OF THE SENSOR CONTROL The sensor control part consists mainly of the following components (units), which are shown in the block diagram. (1) Mains circuit (2) Controller (3) Relay unit...
Page 26 R-5960 R-5960 3. PRESENTATION OF THE LSIs Attachmen • ........, Signal Description t No. LSI (1-1: IX2344YA) " FROM Segment Data Signal The I/O (input/output) signals of the LSI (IX2344YA) are listed in the table below. Connected to the LCD (pin No. 18)
Page 27 R-5960 Anschluli Description Signal Warn buzzer signal This signal is 2kHz (continuous signal) to control two different warning buzzer tones. A: Sensor button touch signal B: Cooking time end signal A+1^D = 2 kHZ " 500x 10-6 Voltage: +5 V2 voltage is added Connection not proven.
Page 28 R35960 Attachment Signal Description 2 :11 ' OSCOUT FROM Setting output of internal clock oscillation frequency Output to control the input vibration frequency of OSClN. OSClN Setting input of internal clock oscillation frequency The internal clock oscillation frequency is adjusted by inserting a ceramic filter oscillation circuit, taking into account the OSCOUT connector.
Page 29 R-5960 Attachment Signal Description Segment Signal Data FROM Connected to the LCD. FROM The ratio between signals and LCDs is as follows: FROM Signal (Pin No.) LCD (Pin No.) (20) ........1 FROM (21) ........... 2 FROM (35) ........... 3 (36) ...........
Page 30 ^5960 MAINS POWER CIRCUIT 220V alternating current flows through the filter circuit (LI) and is produce a DC voltage VI of +18V. transmitted to the primary winding of the low-voltage mains This voltage VI is then passed on to the Konstap.t voltage circuit, which beste.ht to the ZD1 diode, which converts the voltage into V2 transformer.
Page 31 R-5960 6. WARNING BUZZER CIRCUIT The square waveform created at the connection of the LSI RI waveform voltage (2kHz) is transmitted to SP1 to produce the connector is fed to the base of Q4 to turn Q4 on and off. The square warning buzzer tone.
Page 32 8. DISPLAY CIRCUIT Anzeig^c.haltkreis based gjnqan. during one time period and: allows it to pass through the polarizing FliissigkristaUanzeigeT System. The liquid crystals are located plates during another time period. The common electrodes and the between two polarizing plates. segment electrodes are pulse-activated. If the potential between the The voltage supply between the common electrodes and the two electrodes rises above the limit, black signs (black level) appear segment electrodes of the FJussig crystal takes place alternately, so...
Page 33 R-5960 R-5960 about IMG microwave oven, and short-circuit both ends of the stop switch (on the circuit board) of the sensor control console with a wire or similar. This creates a state that is equivalent to the original state of the microwave device when the door is closed. Now the external power source is connected to the input port of the 2.
Page 34 R-5960 R-5960 REPLACING AND ADJUSTING THE COMPONENTS REMOVAL OF THE TURNTABLE MOTOR WARNING: Avoiding exposure to radiation: socket and lift off the external housing. 5. Unscrew the two (2) screws that hold the The door is bent or warped. components in the interlock, the stove door or in the Before using the microwave oven: 2^ Discharge the high-voltage capacitor.
Page 35: Schematic Circuit Diagram
R-5960 R-5960 COOKING CHAMBER LAMP COVER PROTECTIVE PLATE OUTER HOUSING SCHEMATIC CIRCUIT DIAGRAM POWER CORD- COOKING CHAMBER LAMP SAFETY INTERFERENCE CABLE SUPPORT SUPPRESSION UNIT □BERES CABLE ANCHORING (UPPER) CABLE ANCHORING (LOWER) RECTIFIER TURNTABLE* CHASSIS STUMP TRACK ROLLER UNIT MONITOR RESISTOR...
Page 37 ^5960 R-5960 REMOVING THE UNO CONTROL PANEL FROM YOUR COMPONENTS The control panel unit must be removed from the microwave unit when page 38. a component needs to be replaced. To remove the control panel, refer REMOVAL OF THE LOWER BOLT SWITCH/AND STOP SWITCH...
Page 38 R-5960 ADJUSTMENT OF THE UPPER AND LOWER LATCH SWITCH SOW1EDES MONITOR SWITCH If the upper and lower latch switches do not function properly due to activated when the tiir is closed, loosen the screw (1) that holds incorrect adjustment, the following adjustment must be made: the upper bolt hook to the control panel panel wall and then 1.
Page 39 R'5960 SUBSTITUTION AND ADJUSTMENT OF THE GOAL; SUBSTITUTION OF THE GATE radiation level should be used. (See the "Microwave 1. The Power cord connector auS def mains socket and ;; Measurement" section). ifd,as ''AuSdngehatise!abnehmeh; SETTING THE GATE JEj6sen des 2. ;D en HochspanhuTigskond^nsator. Ehtfefrieii and/dder ScHarhiers^beisp'ielsweisfe beim 3p Diesfiinf '(STSschraubenTosdre^ which the lower and upper...
Page 40 R-5960 MICROWAVE MEASUREMENT After adjusting the door lock switches and the door, either single or should be a low 600 ml cooking cup with an inner diameter of 8.5 cm made of an electrically non-conductive material such as glass together, the following leak inspection must be carried out using an or plastic.
Page 41 220V ~ 50 Hz WIRE COLOR CODE and SYMBOL RED:RED WHT: WHITE BRN: BROWN BLU : BLUE ORG: ORANGE PPL : PURPLE PNK:ROSA BLK : BLACK GRY: GREY GRN: GREEN FORMATION G-Y : GRONE UNO G.EL8E STREJFEN HV : HIGH UNIT VOLTAGE WIRE /IFF : CUTTING SURFACE OF 0.75 F: 7A250V FUSE...
Page 42 R-5960 R-5960...
Page 47: Spare Parts List
1^5960 R-5960 SPARE PARTS LIST REF. NO. PART NO. DESCRIPTION NUMBER CODE ELECTRICAL PARTS RC—QZO122WRE0 High voltage condensation RH-DZOO 6 8WRE0 Rectifier QFS-CO 0 2 7WRE0 Fuse 7A 250V LI, L2 RLMPT0036WRE0 Cooking chamber lampZ-lamp holder RMOTDO18 5WRE0 Kiihl blower motor...
Page 48 PART NO. DESCRIPTION REF. NO. NUMBER CODE CONTROL PANEL PARTS 3- 1 CPWBF130SWRK0 Controller 3- 1A QCNCM2 3 2 2YAZZ 9-pin wire connector (A) 3- IB QPLGJ2255YAZZ 3-pole stacker (B) 3- IC QPLGJ 2 3 3 5 YAZZ 6-pin connector (C) 3- ID QPLGJ2332YAZZ 12-pin connector (E)
Page 49 REF. NO. PART NO. DESCRIPTION NUMBER CODE VRD—ST2DF 2 7 3 J Resistor 27kfl 1/5W R84,R87 VRD-ST2DF3 3 3 J Resistance 33kn 1/5W VRD-ST2DF 2 2 3 J Resistance 22k£l 1/5W VRD—ST2EF 5 6 0 J Resistance 560'1/4W Resistance lOOkQ 1/5W VRD ST2DF104 J R90,R91 RRLYU2093YAZZ...
Page 50 R-5960 REF, NO. PART NO. BESCHRE1BUNG NUMBER CODE 4-13 FDUC—A 0 0 7WRK0 Air duct kit 4-14 FSKR—AO01WRK0 Hohllelter kit 4-15 PSLDMA 0 0 7WRW0 Cooking chamber flange 4-16 PCOVPAO 01WRP0 Waterproof cover 4-17 PCOVP0 3 4 1WRW0 Turntable motor cover...
Page 51 H-5960 REF. NO. J PART NO. DESCRIPTION NUMBER CODE 7- 3 LX—BZ019 4WRE0 Screw, fastening for opening plate 7- 4 LX—CZ0 0 3 7WRE0 Screw, fastening for external housing 7- 5 LX-CZ0047WREO Screw, fastening for lower case and chassis unit 7- 6 LX—CZ 0 0 5 2WRE0 Screw, attachment for upper and lower latch hooks...
Page 52 H-5960 1. MODEL NUMBER 2. REF. NO. 4. DESCRIPTION 3. TE1L NR,...
Page 53 R-5960 R-5960...
Page 55 FP5960 R-5960...
Page 56 R-5960...
Page 57 MAINTENANCE INFORMATION FOR MAGNETRON,AIR DUCT AND WAVEGUIDE These modes are equipped with different magnetrons (Part No. RV-MZ0165WER0 and RV-MZ0166WRE0). 1. MAGNETRON KIT, PART NO. FV-MZA004WRE0. 1-1. This kit includes: 1-magnetron, RV MZ0166WRE0 1-air duct, 1- PDUC-0503WRW0 PSKR-0088WRF0 waveguide, 3- LX-BZ0186WRE0 (1 piece) for attaching the air duct bolts LX-CZ0047WRE0 (2 pieces) for attaching the waveguide...
Page 58 R-5960 1-2. Maintenance If the magnetron (part no. RV-MZ0165WRE0 or RV-MZ0166WRE0) is replaced, this magnetron kit can be used. Tighten the air duct and the waveguide well with the fastening cables. After assembling the magnetron, install it in the microwave device and refer to page 2.

Sharp R-5960 Service Manual

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