Sharp KB3300JK Service Manual
Sharp KB3300JK - Insight Range With Microwave Drawer Manual
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UPC - 074000612334
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Sharp KB3300JK manual content summary:
- Sharp KB3300JK | Service Manual - Page 1
SERVICE MANUAL KB-3300JS KB-3300JK KB-3300JW S74R243KB330J FREE STANDING RANGE WITH MICROWAVE DRAWER MODELS KB-3300JS pictured KB-3300JS KB-3300JK KB-3300JW In the interest of user-safety the unit should be restored to its original condition and only parts identical to those specified should be - Sharp KB3300JK | Service Manual - Page 2
to the owner. BEFORE SERVICING Before servicing an operative unit, perform a microwave emission check as per the Microwave Measurement Procedure outlined in this service manual. If microwave emissions level is in excess of the specified limit, contact SHARP ELECTRONICS CORPORATION immediately @1-800 - Sharp KB3300JK | Service Manual - Page 3
KB-3300JS KB-3300JK KB-3300JW WARNING TO SERVICE PERSONNEL Range units contain circuitry capable of producing very high voltage and current, contact with following parts may result in a severe, possibly fatal, electrical shock. (Example) High Voltage Capacitor, High Voltage Power Transformer, - Sharp KB3300JK | Service Manual - Page 4
and securely reassembled ATTENTION!!! This service manual is intended for use by persons having electrical and mechanical training and a level of knowledge of these subjects generally considered acceptable in the appliance repair trade. Sharp Electronics Corporation cannot be responsible, nor - Sharp KB3300JK | Service Manual - Page 5
KB-3300JS KB-3300JK KB-3300JW A. Requirements: 1) Microwave leakage limit (Power density limit): The power density of microwave radiation emitted by a microwave to insure that any leakage is measured accurately. 3) Set the cooking control on Full Power Cooking Mode. 4) Close the drawer and select a - Sharp KB3300JK | Service Manual - Page 6
KB-3300JS KB-3300JK KB-3300JW NOTES 4 - Sharp KB3300JK | Service Manual - Page 7
SERVICE MANUAL FREE STANDING RANGE WITH MICROWAVE DRAWER KB-3300JS KB-3300JK / KB-3300JW FOREWORD This Manual has been prepared to provide Sharp Electronics Corp. Service Personnel and Service Information for the SHARP FREE STANDING RANGE WITH MICROWAVE DRAWER, KB-3300JS, KB-3300JK, and KB-3300JW. - Sharp KB3300JK | Service Manual - Page 8
KB-3300JS KB-3300JK KB-3300JW ITEM Power Requirements Thermal Oven Heating Elemants Case Dimensions Cooking Cavity Dimensions 3.8 Cubic Feet Cook Top Heating Elements Control Complement Oven Cavity Light Safety Standard OVEN SPECIFICATION DESCRIPTION 120 /208 - 120/240Volts / 46/50 Amperes 60 Hertz - Sharp KB3300JK | Service Manual - Page 9
MICROWAVE DRAWER SPECIFICATION KB-3300JS KB-3300JK KB-3300JW ITEM Power Output Cooking Cavity Dimensions 1.0 Cubic Feet Control Complement DESCRIPTION 1000 watts (IEC TEST PROCEDURE) Operating frequency of 2450MHz Width 17-11/32 Height 5-7/16" Depth 17-1/8" Touch Control System Clock ( 1:00 - 12: - Sharp KB3300JK | Service Manual - Page 10
KB-3300JS KB-3300JK KB-3300JW POWER CONNECTION 208/240 VOLT CONNECTION INSTRUCTIONS The range can be set for (10-50R) Figure 5B Figure 6 Figure 7 POWER CORD CONNECTIONS 4-WIRE CONNECTION INSTRUCTIONS-FIGURE 8 Before wiring the range, review the suggested power source location. If connecting - Sharp KB3300JK | Service Manual - Page 11
a 4-wire electrical system: 1 Follow the manufacturer s Installation Instructions supplied with the strain relief clamp and install. 2 Strip insulation 1 3/8-inches (3.5 cm) diameter cord kit hole. Figure 9 KB-3300JS KB-3300JK KB-3300JW connections. Tighten all 3 or 4-wire leads to the terminal - Sharp KB3300JK | Service Manual - Page 12
KB-3300JS KB-3300JK KB-3300JW ANTI-TIP DEVICE NORMAL INSTALLATION STEPS ANTI-TIP BRACKET INSTALLATION INSTRUCTIONS IMPORTANT SAFETY , the Anti-Tip bracket must also be moved and installed with the range. Instructions are provided for installation in wood or cement fastened to either the floor or - Sharp KB3300JK | Service Manual - Page 13
CONTROL LAYOUT KB-3300JS KB-3300JK KB-3300JW C ONT R OL K NOBS OFF LO HI OFF LO HI Cooktop MED MED HOT S UR FACE INDICAT OR LIGHT S CONTROL PANEL C ONT R OL K NOBS OFF LO HI OFF SMALL LARGE HI HI MED MED Cooktop MED LO LO OV E N K EYSHEET MIC R OWAV E KB-3300JS 11 - Sharp KB3300JK | Service Manual - Page 14
㪣㪈 KB-3300JS KB-3300JK KB-3300JW 㪮㪟㪫 㪮㪟㪫 㪥 㪙㪣㪢 㪧 Schematic-Off Condition 㪙㪣㪢 㪙㪣㪬 㪙㪣㪬 㪙㪣㪬 㪙㪣㪢 㪧 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪟㪈 㪮㪟㪫 㪧 㪋㪸 㪮㪟㪫 㪙㪣㪢 㪰㪣㪮 㪋 㪩㪜㪛 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 㪰㪣㪮 - Sharp KB3300JK | Service Manual - Page 15
㧾㨅㧢 㪮㪟㪫 㪮㪟㪫 㪩㪜㪛 㧯㧡 㧯㧣 . 4'.#; 㪩㪜㪛 4;$ 㪩㪜㪛 㪙㪣㪢 㪩㪜㪛 㪙㪩㪥 㧾㨅㧟 㪙㪣㪢 㪞㪩㪥 㪩㪜㪛 㨪 㧱㧝 㪙㪣㪢 㪦㪩㪞 㪮㪟㪫 㧯㧻㧹㧚 㧾㨅㧠 㪙㪣㪬 㪰㪣㪮 㪩㪜㪛 㪙㪣㪢 㪙㪣㪢 㪦㪭㪜㪥 㪣㪈 㪣㪉 㪣㪉 㪣㪈 KB-3300JS KB-3300JK KB-3300JW On condition (Bake & Microwave) - Sharp KB3300JK | Service Manual - Page 16
KB-3300JS KB-3300JK KB-3300JW COOK TOP SCHEMATIC (DETAIL) 㪣㪈 㪣㪉 㪣㪉 㪰㪣㪮 㪋 㪩㪜㪛 㪙㪣㪢 㪋㪸 㪮㪟㪫 㪰㪣㪮 㪩㪜㪛 㪩㪜㪛 㪈㪸 㪉㪸 㪙㪩㪥 㪩㪜㪛 㪟㪈 㪮㪟㪫 㪰㪣㪮 㪉 㪈㪸 㪰㪣㪮 㪣㪉 㪩㪜㪛 㪩㪩 㪙㪩㪥 㪙㪣㪬 㪰㪣㪮 㪩㪝 㪙㪣㪬 㪙㪣㪬 㪰㪣㪮 㪣㪩 㪮㪟㪫 㪙㪣㪢 㪙㪣㪬 㪰㪣㪮 - Sharp KB3300JK | Service Manual - Page 17
MICROWAVE DRAWER SCHEMATIC (DETAIL) KB-3300JS KB-3300JK KB-3300JW 㪩㪜㪛 㧸 㧸 㪮㪟㪫 㪦㪭㪜㪥 㧹㧟 㪞㪩㪥 㨪 㪞㪩㪰 㨪 㨪 㨪 㪤㪞 㨪 㨪㨪 㧯㧻㧹㧚 㪙㪩㪥 㪞㪩㪰 㪙㪩㪥 㪮㪟㪫 㪙㪩㪥 㪙㪣㪢 㧲㧝 㧾㨅㧡 㧲㧹 㪦㪩㪞 㧿㧹 㧻㧸 㨪 - Sharp KB3300JK | Service Manual - Page 18
KB-3300JS KB-3300JK KB-3300JW 㧮 $ 㪣㪈 㪩㪜㪛 㪥 RANGE SCHEMATIC (DETAIL) 㪮㪟㪫 㪮㪟㪫 㪙㪣㪢 㪙㪣㪢 㧯㧟 㧾㨅㧢 㪮㪟㪫 㧯㧣 㧯㧡 . 4'.#; 㪩㪜㪛 4;$ 㪩㪜㪛 㪙㪣㪢 㪩㪜㪛 㪙㪩㪥 㧾㨅㧟 㪙㪣㪢 㪞㪩㪥 㪩㪜㪛 㨪 㧱㧝 - Sharp KB3300JK | Service Manual - Page 19
TEST KB-3300JS KB-3300JK KB-3300JW The touch control panel consists of circuits including semiconductors such as LSI, ICs, etc. Therefore, unlike conventional microwave ovens, proper maintenance cannot be performed with only a voltmeter and ohmmeter. In this service manual, the touch control panel - Sharp KB3300JK | Service Manual - Page 20
KB-3300JS KB-3300JK KB the following keys within 20 seconds (Use flat part of thumb or finger): "Power Level" then the covers (confirm cooktop wires are tucked under microwave cavity lip as shown on p.38). 9. Reconnect relay coil. If diode is good, control unit is defective. RELAY SYMBOL RY1 RY2 - Sharp KB3300JK | Service Manual - Page 21
KB-3300JS KB-3300JK KB electronic circuits control transformer. 8) Reconnect all leads removed from components during testing. 9) Re-install the covers. 10) Reconnect the power supply cord after the covers are installed. 11) Run the oven and check all functions. 2. Follow the troubleshooting guide - Sharp KB3300JK | Service Manual - Page 22
KB-3300JS KB-3300JK KB Refer to the "INSTALLATION INSTRUCTIONS" of the operation manual. (4) Exhaust vents are provided for the first 16 seconds, without generating microwave energy. NOTE: ERROR will appear if Check other parts except the AH sensor. TESTING METHOD FOR AH SENSOR AND/OR CONTROL UNIT To - Sharp KB3300JK | Service Manual - Page 23
will be displayed. If new sensor does not operate properly, the problem is with the control unit, and refer to explanation below. CHECKING CONTROL UNIT (1) Disconnect the power supply cord, and then disassemble as per "OVEN/MICROWAVE DRAWER DISASSEMBLY" page 38. (2) Open the drawer and block it open - Sharp KB3300JK | Service Manual - Page 24
KB-3300JS KB-3300JK KB-3300JW PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST G SURFACE ELEMENT CONTROL SYSTEMS Two types of surface elements control systems are covered in this manual Troubleshooting: 1. There are four ways a surface control the off position. This problem is caused by a - Sharp KB3300JK | Service Manual - Page 25
KB-3300JS KB-3300JK KB controls are marked on the control panel for their respective heating element. When the knob is turned clockwise, less than 180 degrees, contacts P2 to 4, P2 to 4A, and P1 to 2 closes Troubleshooting: There are six ways a surface control off position. This problem is caused by - Sharp KB3300JK | Service Manual - Page 26
KB-3300JS KB-3300JK KB-3300JW PROCEDURE LETTER TEST PROCEDURES COMPONENT TEST Both elements do not heat: Checking the system with a Voltmeter, if the elements do not heat up: 1. Remove - Sharp KB3300JK | Service Manual - Page 27
KB-3300JS KB-3300JK KB-3300JW COMPONENT TEST Refer to the disassembly instructions MICROWAVE OUTPUT POWER The following test procedure should be carried out with the microwave of control unit. Check for restricted air flow , especially the cooling fan and air guide. 5. Reconnect all leads removed from - Sharp KB3300JK | Service Manual - Page 28
KB-3300JS KB-3300JK KB-3300JW TEST PROCEDURES PROCEDURE LETTER COMPONENT TEST J SECONDARY INTERLOCK SWITCH TEST 1. Disconnect the power supply cord. 2. Open the drawer and keep it open. 3. To discharge - Sharp KB3300JK | Service Manual - Page 29
TEST COMPONENT TEST KB-3300JS KB-3300JK KB-3300JW 1. "monitor fuse and monitor switch assembly" part number FFS-BA018/KIT, even if control unit. SPECAIL FAILURE NOTE: During the Microwave Drawer operation, if it goes dead, check each Thermal Cut-out first. This is due to the whole control - Sharp KB3300JK | Service Manual - Page 30
KB-3300JS KB-3300JK KB-3300JW TOUCH CONTROL PANEL ASSEMBLY OUTLINE OF TOUCH CONTROL PANEL The touch control section consists of the following units. (1) Keyboard unit (2) Control it works on commercial frequency. 15) Door Sensing Switch (Microwave drawer) A switch to "tell" the LSI if the drawer - Sharp KB3300JK | Service Manual - Page 31
DESCRIPTION OF LSI (IC-1) KB-3300JS KB-3300JK KB-3300JW The I/O signal of the LSIis detailed in the following with respect to Xout terminal. 13 XOUT OUT Internal clock oscillation frequency control output. Output to control oscillation input of Xin. 14 VCC IN Power source voltage: +5V. - Sharp KB3300JK | Service Manual - Page 32
KB-3300JS KB-3300JK KB-3300JW Pin No. 37 38 40 41 42 43 44 45 46 47 Signal power 90% power 80% power 70% power 60% power 50% power 40% power 30% power 20% power 10% power 0% power Microwave cooking mode Other cooking mode ON TIME OFF TIME ON TIME OFF TIME 32 sec. 0 sec. 60sec. 0ec. 30 sec. 2 - Sharp KB3300JK | Service Manual - Page 33
Pin No. 57 58 59 60 Signal P53 P52 P51 INT0 KB-3300JS KB-3300JK KB-3300JW I/O IN OUT IN IN Description To input signal which communicates the oven door open/close information to LSI. Door open "H" level signal (+5V). Door - Sharp KB3300JK | Service Manual - Page 34
KB-3300JS KB-3300JK KB external airflow. ventilation opening for sensing Thermistors Sensing part (Open vessel) Sensing part (Closed vessel) potential at both F-3 terminal voltage of the absolute humidity circuit to allow the LSI to control sensor cooking of the unit. When the unit is set in - Sharp KB3300JK | Service Manual - Page 35
OVEN TEMPERATURE/SELF CLEANING CONTROL CIRCUIT KB-3300JS KB-3300JK KB-3300JW IC-8 IC-7 33 - Sharp KB3300JK | Service Manual - Page 36
KB-3300JS KB-3300JK KB-3300JW OVEN DOOR LOCK MOTOR CONTROL CIRCUIT 34 - Sharp KB3300JK | Service Manual - Page 37
OVEN DOOR LOCK MOTOR DETECTION CIRCUIT KB-3300JS KB-3300JK KB-3300JW 35 - Sharp KB3300JK | Service Manual - Page 38
KB-3300JS KB-3300JK KB-3300JW TOUCH CONTROL PANEL SERVICING 1. Precautions for Handling Electronic Components This unit uses CMOS LSI in the integral part of the circuits. When handling these parts, the following precautions should be strictly followed. CMOS LSI have extremely high impedance at - Sharp KB3300JK | Service Manual - Page 39
PRECAUTIONS FOR USING LEAD-FREE SOLDER KB-3300JS KB-3300JK KB-3300JW 1. Employing lead-free solder The "Main PWB" of this model employs lead-free solder. This is indicated by the "LF" symbol printed on the PWB and in the service manual. The suffix letter indicates the alloy type of the solder. - Sharp KB3300JK | Service Manual - Page 40
KB-3300JK KB-3300JW OVEN / MICROWAVE DRAWER DISASSEMBLY WARNING: Follow all safety precautions beginning on Page 2 before proceeding! 1. Before removing Control Panel, take measures to protect the Cook Top surface and keep Microwave Drawer open to prevent scratches. 2. Remove all Control Knobs - Sharp KB3300JK | Service Manual - Page 41
10. Remove screws from Control Panel Frame (Fig 4). Control Panel Frame KB-3300JS KB-3300JK KB-3300JW Fig. 4 11. Slide Cook Top forward to unlock from shoulder screws, then remove or reposition (Fig. 5). Fig. 5 12. Remove all screws on back panel - Sharp KB3300JK | Service Manual - Page 42
KB-3300JS KB-3300JK KB-3300JW 14. Remove screws from Microwave top Air Duct and take off (Fig. 7). 15. Remove all screws from Microwave Back Plate (Fig. 7). 16. Lift Back Plate and remove carefully not to damage any wires (Fig. 7). Air Duct Back Plate NOTE: The Microwave Back Plate cannot be - Sharp KB3300JK | Service Manual - Page 43
KB-3300JS KB-3300JK KB , you will need to adjust the slide rail attached to the Microwave cavity. 10.This is done by following the steps to remove the S-1). 11.Check and assure that the cap nuts on the Drawer Support Angles are centered when passing through the cavity face plate. After adjustment, - Sharp KB3300JK | Service Manual - Page 44
KB-3300JS KB-3300JK KB Remove (2) Drawer Support Covers from Choke microwave leakage around drawer with an approved microwave survey meter. (Refer to Microwave Measurement Procedure.) Note: The drawer on a microwave oven is designed to act as an electronic seal preventing the leakage of microwave - Sharp KB3300JK | Service Manual - Page 45
Pull the lock located on both hinge supports up and engage in the hook instructions found on Pages 38 - 40. 3. Remove (2) screws from Hinge Cover (Fig. O-4) 4. Remove Hinge Receptacle. 5 Proceed in reverse to reinstall the Hinge Receptacle and Hinge Cover. Fig. O-1 Fig. O-2 KB-3300JS KB-3300JK KB - Sharp KB3300JK | Service Manual - Page 46
KB-3300JS KB-3300JK KB-3300JW OVEN BAKE ELEMENT REMOVAL 1. Disconnect the power supply cord. 2. Refer to the disassembly instructions found on Pages 38 - 40. 3. Disconnect the wires by removing (2) nuts from element (Fig. O-5) 4. Remove the (2) screws holding the element from inside the oven (Fig. - Sharp KB3300JK | Service Manual - Page 47
Motor. Fig. O-11 LOCK MOTOR REMOVAL 1. Disconnect the power supply cord. 2. Refer to the disassembly instructions found on Pages 38 - 40. 3. Unhook all wiring from Lock Motor (Fig. O-12). 4. Remove . 7. Proceed in reverse to reinstall the Thermistor. Fig. O-12 KB-3300JS KB-3300JK KB-3300JW 45 - Sharp KB3300JK | Service Manual - Page 48
KB-3300JS KB-3300JK KB-3300JW COOK TOP RADIANT HEATERS/HOT SURFACE INDICATOR REMOVAL 1. Disconnect the power supply cord. 2. Refer to the disassembly instructions found on Pages 38 - 40. 3. After Cook Top Assembly is free, turn upside down (glass side down) on a protective surface to prevent - Sharp KB3300JK | Service Manual - Page 49
L2 (LR) (LR) H1 (LR) H2 P (LR) (LR) P L2 PILOT LIGHT LEFT INFINITE SWITCHES (LEFT SIDE) P L1 (LF) (LF) L2 (LF) H1 H2 (LF) (LF) CONTROL PANEL WIRING DIAGRAM KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 50
48 VLP-12V (TO CONTROL HARNESS) L1 L2 4 (RF) 4a(RF) H1(RR) H1(LF) H1(LR) H2(RF) H2(RR) H2(LF) H2(LR) BLK 1 WHT 2 RED 3 WHT 4 WHT 5 LEFT FRONT (LF) SMALL WHT BLK BLU YLW 90 YLW BLK BRN 2b 1b 2a P1 1 ZONE LEFT REAR (LR) LARGE COOK TOP WIRING DIAGRAM KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 51
MICROWAVE DRAWER WIRING DIAGRAM TO CPU (JST XMR-02V) OVEN LAMP BLU BLK BLU STIRRER MOTOR WHT ORG BLU WHT GRN 12 FAN MOTOR ORG TAPE TO OVEN HARNESS (JST VLP-8V) (JST VLP-02V) RED ORG RED RED (N.O.) (COM) EX EX ORG ORG L2 RELAY MG THERMAL CUT-OUT KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 52
KB-3300JS KB-3300JK KB-3300JW MICROWAVE DRAWER WIRING DIAGRAM 1 STOP SW (COM) 2 STOP SW (N.O.) TO DRAWER HARNESS (JST XMP-02V) 1 THERMISTOR 2 THERMISTOR 3 DOOR SW (COM) 4 DOOR SW (N.O.) 5 LOCK MOTOR SW (N.C.) 6 LOCK - Sharp KB3300JK | Service Manual - Page 53
51 BLK RED (LEFT) (L1) (RIGHT) (L2) TERMINAL UL TAPE RED RED 1 RED RED NO.07 NO.08 SHRINK TUBE (VERSAFIT V2) BLK BLK BLK BLK 123456 BLK BLK BLK RED RED RED INFINITE SWITCH HARNESS (JST VLP-6V) RANGE POWER SUPPLY WIRING DIAGRAM KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 54
(N.O.) 7 LOCK MOTOR SW (COM) TO CPU (JST XMR-07V) 12345678 TO DRAWER HARNESS (JST VLR-8V) 1234567 TO CPU (JST XMR-07V) RANGE WIRING DIAGRAM KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 55
-F3AA024E H-10 H-11 H-15 H-12 : IF NOT SPECIFIED, 1SS270A H-14 H-13 G H 1 CN-E E-7 E-6 D16 D15 E-4 E-5 BOTTOM HEATER RELAY. HEATER COMMON. Figure S-2. Power Unit Circuit 2 3 4 5 53 E-3 E-2 E-1 KB-3300JS KB-3300JK KB-3300JW 6 A B C D E F G H 6 - Sharp KB3300JK | Service Manual - Page 56
KB-3300JS KB-3300JK KB-3300JW A B C D E F G H 1 1 COM3 C0 2 2 3 3 VR K-1 CN-K GND K-2 INT K-3 AH SENSOR CN-F F-3 F-2 F-1 OVEN M-4 DOOR 42 VREF 41 DRDY R25 4.7K C14 R22 10K R23 4.7K R24 4.7K WH-A G-6 R71 C70 R80 1K 10K R81 1K - Sharp KB3300JK | Service Manual - Page 57
KB-3300JS KB-3300JK KB-3300JW 1 2 3 4 5 6 A A B B S047081 C2 D16 D17 D15 1 CNJ 61 CNE QPWBFA844DRZZ 7 1 2 D14 CND 5 RY10 C C 1 6 D18 CNA RY11 C1 D2 D3 D1 D4 VRS1 D13 ZD1 R1 - Sharp KB3300JK | Service Manual - Page 58
KB-3300JS KB-3300JK KB-3300JW A B C D E F G H 1 1 2 2 FA843 S047071 3 LCD2 C4 C1 S23 LCD1 S1 CF2 WHA 1 3 6 CNK 15 1 CNL 6 C90 CNF 1 CNM 14 CNN 5 R100 6 2 LD10 4 3 3 56 4 4 5 5 Figure S-5. Printed Wiring Board of Control Unit 6 6 A B C D E F G H - Sharp KB3300JK | Service Manual - Page 59
4 5 6 7 8 9 Control 0 Lock (On) Cooktop warm Setup Custom Help Stop Clear Poer Level Timer Clock START Minute Plus Sensor Popcorn MicroWarm Sensor Reheat Defrost Sensor Cook Reheat 57 4 4 5 5 Figure S-5. Printed Wiring Board of Keyboard Unit 6 6 KB-3300JS KB-3300JK KB-3300JW - Sharp KB3300JK | Service Manual - Page 60
[KB3300JW] Retainer [KB3300JS] [KB3300JK] Retainer [KB3300JW] Control knob [KB3300JS] [KB3300JK] Control knob [KB3300JW] C/P frame [KB3300JS] [KB3300JK] C/P frame [KB3300JW] C/P support R [KB3300JS] [KB3300JK] C/P support R [KB3300JW] C/P support L [KB3300JS] [KB3300JK] C/P support L [KB3300JW] Lens - Sharp KB3300JK | Service Manual - Page 61
18 1-13 1-15 C 1-14 1-11 1-11 1-4 1-4 D 1-4 1-5 KB-3300JS KB-3300JK KB-3300JW 5 6 A 1-18 1-17 1-10 B 1-13 1-22 1-12 C D 1-11 1-11 E 1-3 1-8 1-7 1-2 F 1-13 1-13 1-21 1-19 1-9 G Actual wire harness may be different from illustration. H CONTROL PANEL HARNESS 1 2 3 4 59 - Sharp KB3300JK | Service Manual - Page 62
KB-3300JS KB-3300JK KB-3300JW COOK TOP PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION REF. NO. PART NO. § DESCRIPTION Q'TY CODE 2- 1 2- 2 * 2- 3 * 2- 4 2- 5 2- 6 2- 6 2- 7 - Sharp KB3300JK | Service Manual - Page 63
1 2 COOK TOP A B 2-15 2-3 C 2-10 D E 3 4 5 2-14 2-6 2-2 2-4 2-9 2-4 2-9 2-5 2-11 2-7 KB-3300JS KB-3300JK KB-3300JW 6 A B C D E F 2-13 G COOK TOP HARNESS 2-12 2-1 H Actual wire harness may be different from illustration. 1 2 3 4 61 2-13 F 2-12 2-8 G H 5 6 - Sharp KB3300JK | Service Manual - Page 64
KB-3300JS KB-3300JK KB-3300JW MICROWAVE DRAWER PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION REF. NO. PART Door assy [KB3300JS] 1 BD DDORFB094MRK0 M Door assy [KB3300JK] 1 BD - Sharp KB3300JK | Service Manual - Page 65
1 2 MICROWAVE DRAWER KB-3300JS KB-3300JK KB-3300JW 3 4 5 6 MICROWAVE DRAWER HARNESSES A 3-28 3-14 3-55 3-47 A Actual wire harness may be different from illustration. 3-28 3-11 B 3-61 B 3-28 3-27 3-45 3-28 3-28 3-15 3-3 3-39 3-28 3-4 3- - Sharp KB3300JK | Service Manual - Page 66
KB-3300JS KB-3300JK KB-3300JW OVEN PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. REF. NO. PART NO. § DESCRIPTION "§" MARK: PARTS DELIVERY SECTION Q'TY CODE 4- 1 4- 2 4- 3 4- 4 4- 5 4- 6 4- 7 4- 8 4- 9 4-10 - Sharp KB3300JK | Service Manual - Page 67
1 2 A OVEN UNIT KB-3300JS KB-3300JK KB-3300JW 3 4 5 6 OVEN UNIT HARNESSES 4-42 4-40 A Actual wire harness may be different from illustration. B B 4-34 4-28 4-3 C 4-27 4-26 4-24 D 4-23 4-27 4-39 E 4-48 F G 4-27 C 4-47 4- - Sharp KB3300JK | Service Manual - Page 68
KB-3300JS KB-3300JK KB-3300JW OVEN DOOR PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. "§" MARK: PARTS DELIVERY SECTION REF. NO. PART NO. § DESCRIPTION Q'TY CODE 5- 1 5- 1 5- 1 5- 2 5- 3 5- 3 5- 3 5- 4 - Sharp KB3300JK | Service Manual - Page 69
KB-3300JS KB-3300JK KB-3300JW 1 2 3 4 5 6 OVEN DOOR A A 5-2 B B C C 5-1 D D E E 5-4 F F 5-4 5-3 G G 5-5 H H 1 2 3 4 5 6 67 - Sharp KB3300JK | Service Manual - Page 70
KB-3300JS KB-3300JK KB-3300JW PACKING PARTS LIST Note: The parts marked "∆" may cause undue microwave exposure. The parts marked "*" are used in voltage more than 250V. REF. NO. PART NO. § DESCRIPTION "§" MARK: PARTS DELIVERY SECTION Q'TY CODE 6- 1 6- 2 6- 3 6- 4 6- 5 6- 6 6- 7 6- 8 6- 9 6- - Sharp KB3300JK | Service Manual - Page 71
PACKING KB-3300JS KB-3300JK KB-3300JW PACKING CASE 6-9 BACK SPLASH BACK SPLASH HOLDER WOOD TOP FRAME SUPPORT CORNERS WOOD BOTTOM FRAME Non-replaceable items * Not included in early models. 6-3 BOILER INSERT 6-2 BOILER PAN 6-8 ANTI-TIP TEMPLATE 6-4 OPERATION MANUAL 6-5 INSTALLION MANUAL 6-7 ANTI - Sharp KB3300JK | Service Manual - Page 72
KB-3300JS KB-3300JK KB-3300JW COPYRIGHT © 2004 BY SHARP CORPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in retrieval systems, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written
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KB-3300JS
KB-3300JK
KB-3300JW
In the interest of user-safety the unit should be restored to its original condition and only parts identical to those specified
should be used.
WARNING TO SERVICE PERSONNEL:
This service manual is intended for use by persons having electrical and mechanical training and a level of
knowledge of these subjects generally considered acceptable in the appliance repair trade. Sharp Electronics
Corporation
cannot be responsible, nor assume any liability, for injury or damage of any kind arising from the
use of this manual.
Microwave ovens contain circuitry capable of producing very high voltage and current. Contact with the
following parts may result in a severe, possibly fatal, electrical shock. (High Voltage Capacitor, High Voltage
Power Transformer, High Voltage Rectifier and Heat sink etc., and Magnetron,
High Voltage Harness etc..)
S74R243KB330J
KB-3300JS
KB-3300JK
KB-3300JW
FREE STANDING RANGE
WITH MICROWAVE DRAWER
MODELS
SERVICE MANUAL
TABLE OF CONTENTS
Page
PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO
AVOID POSSIBLE
EXPOSURE TO EXCESSIVE MICROWAVE ENERGY
...................
INSIDE FRONT COVER
BEFORE SERVICING
......................................................................................................
INSIDE FRONT COVER
WARNING TO SERVICE PERSONNEL
...............................................................................................................
1
MICROWAVE MEASUREMENT PROCEDURE
.....................................................................................................
3
FOREWORD AND WARNING
................................................................................................................................
5
PRODUCT SPECIFICATIONS
...............................................................................................................................
6
POWER CONNECTION
.........................................................................................................................................
8
ANTI-TIP DEVICE
...............................................................................................................................................
10
CONTROL LAYOUT
............................................................................................................................................
11
SCHEMATICS
.....................................................................................................................................................
12
TEST PROCEDURES
..........................................................................................................................................
17
TOUCH CONTROL PANEL ASSEMBLY
.............................................................................................................
28
OVEN/MICROWAVE DRAWER DISASSEMBLY
.................................................................................................
38
WIRING DIAGRAMS
...........................................................................................................................................
47
PRINTED WIRING BOARDS
...............................................................................................................................
53
PARTS LIST
........................................................................................................................................................
58
PACKING AND ACCESSORIES
.........................................................................................................................
69
This document has been published to be used for after sales service only. The contents are subject to change without notice.
SHARP ELECTRONICS CORPORATION
KB-3300JS pictured