Epson 710C Projector User Manual
Contents
1. gt Oven Removal The oven is hooked on metal tabs at the bottom of the wall mounting plate and fastened to the cabinet with 3 top cabinet bolts To remove the oven from the cabinet or wall opening WARNING This oven requires 2 people for complete oven removal the oven 1 Disconnect power to the oven 2 For top vented models disconnect the duct and remove the damper assembly 3 Remove the 3 top cabinet bolts Caution When removing the oven be sure to provide adequate support to prevent dropping the unit 4 Pull the unit forward slowly of the oven 3 Remove 5 Phillips head screws from the back of 4 Remove 3 Phillips head screws from the bottom 5 Remove 2 Phillips head screws from the right Outer Cover side of the oven To gain access to many of the oven components it is necessary to remove the outer cover To remove the outer cover 1 Remove the oven See Oven Removal 2 Remove 4 Phillips head screws from the top of the oven Note Model JVM1540 has 5 Phillips head screws on the top of the oven 15 Continued Next Page 6 Remove 2 Phillips head screws from the leftside 4 Lift out the vent blower and place it on top of the of the oven oven side as shown below and disconnect the electrical connector to the vent blower i 1 Electrical Connector m 2 7 Slide the outer cover2. 44 35 5 380 EE N 21 54 Nomenclature Model Number JVM1750DP1BB Product J GE Cooking Product Product Color BB Black WW White SS Stainless Steel Model Year Designator Model Door Color Feature Pack D Color Matched Designates Features the higher the number the more features Microwave Oven V Externally Vented Over the Range Installation M Mounts Under Cabinet Built In Capability Cavity Size cu ft 15215 ai 1 CULT Serial Number The first two numbers of the serial number identify the month and year of manufacture Example AS123456S anuary 2009 2009 5 D FEB 2008 R F MAR 2007 APR 2006 L The letter designating H MAY 2005 the year repeats every L JUN 2004 G 12 years M JUL 2003 The nomenclature plate is located inside the R AUG 2002 p Example microwave on the left side C CEP 2001 A 1974 u 101 2000 2 1986 V NOV 1999 y T 1998 control panel on the right side of the oven 2 DEC 1998 T Introduction The GE Spacemaker Over the Range Microwave Oven is a versatile appliance for any kitchen Features and Benefits Sensor Cook The microwave oven automatically adjusts the cooking time to various types and amounts of food Auto and Time Defrost Auto defrost sets the defrosting time and power levels to deliver even
3. 1 time Press once fresh vegetables Press twice frozen vegetables Press three times canned vegetables more less time more less time more less time on some models COOK on some models Food type 1 6 Press 1 for Chicken Starts immediately Press 2 for Fish Press 3 for Ground Meats Press 4 for Fresh Vegetables Press 5 for Frozen Vegetables Press 6 for Canned Vegetables Continued next page J VM1540 Controls You can microwave by time temperature or with the convenience features Time Features Time Cooking Press TIME COOK amp II Press once or twice DEFROST AUTO TIME Press twice EXPRESS COOK POWER LEVEL ADD 30 SEC Power Level Enter Defrost Auto Time Add 30 Sec Amount of cooking time Amount of defrosting time Starts immediately Power level 1 10 Starts immediately Defrost Vegetable A Convenience Features Press COOK on some models POPCORN REHEAT BEVERAGE POTATO VEGETABLE on some models DEFROST AUTO TIME Press once Enter Food type 1 9 weight Starts immediately See Reheat Guide Starts immediately Starts immediately Food type 1 3 weight Food weight Ou Auto Time Option more less time serving size serving size serving size serving size Demo Mode VM1750 To enter the Demo Mode touch and hold the HELP pad for a full 3 seconds To end the Demo Mode touch and hold the HELP pad for a
4. ae NO KEY PANEL PRESS START MWO 15 20 HVT IS GROUNDED YES REFER FRONT PAGE FOR MORE INFO YES VERIFY OUTLET VOLTAGE PRESENT IS DISPLAY LIT NEON LIGHT TESTER IN UNIT 3 PROGRAM UNIT TO COOK SERVICEN IMMED MONITOR BREAKER gt DOOR TRIPS On FEW SEC INSTALL SERVICE BREAKER ACROSS NO FUSE HOLDER CHECK RESISTANCE OF HVC 2K OHM lt 2K OHMS SCALE ON DVM WATER HEATS bw d NEON TESTER gt A PLUG IN UNIT LIGHTS YES YES IS DISPLAY LIT I ANY SHORTED SERVICE BREAKER OR PINCHED TRIPPED BEFORE WIRING PROGRAMMING 5 CIRCLE NODES FOLLOW THE ARROWS EXAMPLE NO INTERMITTENT INSTALL CLAMP ON PROBLEM CALL TAG AMMETER TO MWO s INTERNAL FUSE LEAD TEAM FOR RESOLUTION THEN GO TO MAGNETRON amp gt 5 GOOD MAGNETRON _LIGHT ONLY REPLACE PRIMARY DOOR CAVITY LIGHT 1 VOLTAGE YES smPSON PCB NO ABOUT 120V NO PROGRAM UNIT FOR COOKING AND START CHECK VOLTAGE AT RELAY AGAIN REPLACE TCO s PRIMARY SWITCH OK CHECK VOLTAGE ACROSS POWER YES RELAY ON PCB DOOR CLOSED NO COOKING PROGRAMMED WIRING SHOULD
5. i P RELAY LO 3 ot CAPACITOR s Y LAMP RELAY COOKTOP LAMP B3W4 gt A Y oo TY 7 0 0 100 0 212 32 E T WT T O8 150 60 302 140 F B5 B30 C POWER f M SUPPLY gt _ PRIMARY 7 gt T m pond INTER LOCK S W B7 BR1 MAIN RELAY i 0V 120V LAMP RELAY lt FAN MOTOR T TABLE MOTOR RELAY SECONDARY RELAY Power Relay DRIVE MOTOR 21V W5 O BS BRI MONITOR INTERLOCK SWITCH MIDDLE NRUSH RELAY H V TRANS INTERNAL GND IN TRANS 0 R R MAGNE TRON BLK HEAT SHRINK H V DIODE J DOOR HOOD T C O NOTE DOOR IS OPEN SENSE 40 70 PROBE SWITCH IS CLOSED SWITCH 104 158 m J VM1540 Wiring Diagram WARN I NG POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE ORANGE PINK P BROWN BR GROUND HARNESS LEADS PARTS LEADS MODEL NO JVM1540 1540 JNM1541 O 0 1 T T TABLE O 6 MOTOR V 1 Q Lo 0 2 _ Y 1 O E COOKTOP O LAMP VENT MOTOR om V CAPACITOR HOOD T C 0 R 2 No 40 706 5 5 104 158 F 0 4 O DOOR 9 4 T SENSING x MGT SWITCH 1 6 0 TOP B 9_ CAVITY us 5 1 6 0 SECONDARY RELAY m POWER RELAY BL 2 BL 3 20 BOTTOM d o 0 1 FAN MOTOR PIN ch cal Sh ac e lt B B ne
6. is LLLA LL amp 14 lt 11 a INL ee re 2 28 4 4 BARA nahi DES 5 1 amp vi i sl a nl Ve lt D 6 DE CE TTTTTTITS Front Side Continued Next Page 13 J VM1540 Smart Board 44144 dd Rd Back Side CN201 Vent Motor CN202 Turntable Motor Cooktop Lamp CN401 Hood TCO amp Door Sensing Switch RY203 Secondary Relay Power Relay HM 5741244 LIRE 7 LI 9667 tihi bri ts 10000 AALLAR 0477 gt E amp ELE PEEL 0 Tr o e 8 ww Front Side P e CTT P i a PPAR eee ELLA La 14 8 memi 4 lai P X m Hd A Mal gt
7. 2 Phillips head 5 5 that attach the door switch bracket to the microwave oven The door has 3 interlock switches All switches are frame and remove the door switch bracket removed the same way n gt Door Sensing and Primary Interlock Switches The power relay is mounted on the smart board The primary interlock and door sensing switches activated by the latch heads on the door When the door is opened the switches interrupt the circuit to all components except the oven lamp and the control panel display A cook cycle cannot take place until the door is firmly closed thereby activating both interlock switches The primary interlock system consists of the door sensing switch the primary interlock switch and the power relay Monitor Switch The monitor switch is operated indirectly by the bottom latch pawl The pawl operates a cam switch which in turn activates the monitor switch The switch is intended to render the oven inoperative 2 by means of blowing the monitor fuse when the 58 contacts of the primary interlock switch and power relay fail to open when the door is opened d Using small flat blade screwdriver release the Functions tabs and remove the door interlock switch from the door switch bracket When the door is opened the monitor switch 15 closed At this time the primary interlock switch and the power relay are open As the door goes to a closed position the mon
8. EXCESSIVE MICROWAVE ENERGY A NOT OPERATE OR ALLOW THE OVEN TO BE OPERATED WITH THE DOOR OPEN B IF THE OVEN OPERATES WITH THE DOOR OPEN INSTRUCT THE USER NOT TO OPERATE THE OVEN AND CONTACT THE MANUFACTURER IMMEDIATELY C MAKE THE FOLLOWING SAFETY CHECKS ON ALL OVENS TO SERVICED BEFORE ACTIVATING THE MAGNETRON OR OTHER MICROWAVE SOURCE AND MAKE REPAIRS AS NECESSARY 1 INTERLOCK OPERATION 2 PROPER DOOR CLOSING 3 SEAL AND SEALING SURFACES ARCING WEAR AND OTHER DAMAGE 4 DAMAGE TO OR LOOSENING OF HINGES AND LATCHES 5 EVIDENCE OF DROPPING OR ABUSE D BEFORE TURNING ON MICROWAVE POWER FOR ANY TEST OR INSPECTION WITHIN THE MICROWAVE GENERATING COMPARTMENTS CHECK THE MAGNETRON WAVE GUIDE OR TRANSMISSION LINE AND CAVITY FOR PROPER ALIGNMENT INTEGRITY AND CONNECTIONS ANY DEFECTIVE OR MISADJUSTED COMPONENTS IN THE INTERLOCK MONITOR DOOR SEAL AND MICROWAVE GENERATION AND TRANSMISSION SYSTEMS SHALL BE REPAIRED REPLACED OR ADJUSTED BY PROCEDURE DESCRIBED IN THIS MANUAL BEFORE THE OVEN 15 RELEASED TO THE OWNER F AMICROWAVE LEAKAGE CHECK TO VERIFY COMPLIANCE WITH THE FEDERAL PERFORMANCE STANDARD SHOULD BE PERFORMED ON EACH OVEN PRIOR TO RELEASE TO THE OWNER GE Consumer amp Industrial Technical Service Guide Copyright 2009 All rights reserved This service guide not be reproduced in whole or in part in any form without written permission from the General Electric Company sjn Table of C
9. GET ABOUT 120V TO HVT CLOSED CHECK REPAIR REPAIR TCO WIRING CMO ONLY IF AN OTR GO TO OTR START BLOCK INSTALL CLAMP ON AMMETER INFINITE OF SECONDARY SIDE OPEN OF HVT SINGLE LEAD TO HVC OTR START 1 UNPLUG UNIT __ 2 DISCHARGE HVC 3 SET DVM ON 2K OHM SCALE REPLACE HVD SOME 4 MEASURE HVD SIDE OF HVC amp HVC AND RETEST TO GROUND DVM DIGITAL VOLT METER HVC HIGH VOLTAGE CAPACITOR THIS IS A HVD HIGH VOLTAGE DIODE LEGEND HVT HIGH VOLTAGE TRANSFORMER 11 SMPS SWITCHING MODE POWER SUPPLY ON MAIN 1 SET CLOCK IF NEEDED CHART TCO THERMAL CUT OUT 2 PLACE CUP OF WATER AND NEON LIGHT TESTER IN UNIT TEMPERATURE SENSOR 3 PROGRAM UNIT TO COOK PCB PRINTED CIRCUIT BOARD Interlocks Door Latch Switches 6 Test the circuit operation The interlocks are designed as follows Primary Bottom switch operated by bottom latch pawl connected to line L leg Connect temporary jumper across relay contacts and primary switch to simulate shorted switch contacts Locate convenient connections in circuit to be certain COM and N O terminals are used Connect an ohmmeter Low Scale across the two line terminals of the appliance power cord Continuity must show e Door Closed Some Door Open 0 Q Remove the 20 Amp fuse the circuit must open If not check the wiring of the monitor and interlock ci
10. PM HELP START TIMER ON OFF CLEAR VEGETABLE POWER LEVEL TURNTABLE DEFROST REMINDER TIME COOK POTATO 1 AUTO NITE LIGHT DELAY START POPCORN SURFACE LIGHT CLOCK REHEAT 7 VENT FAN BEVERAGE BEEPER VOLUME RIBBON J VM1540 J NM1541 HVM1540 CONN PAD ADD 30 SEC CON BEVERAGE 0 VENT 5 7 55 7 CLEAR 3 9 CLOCK 9 Schematics and Wiring Diagrams J VM1750 Schematic Diagram WARN ING POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE AC120V 60Hz MODEL NO JVM1740 JVM1750 N L EVM1750 HVM1750 SYMBOL omm 5 Low EE BROWN 1 0 POWER CORD pisa 120 0 248 32 B2 NOISE FILTER HI P RELAY PLE 3 HI LAMP RELAY r Y LO E CAVITY T C 0 100 0 C 212 32 F M G T T C 0 150 60 C 302 140 F 0 B5 B30 C PRIMARY 9 o OVEN LAMP h INTER LOCK SW MAIN RELAY i pd LAMP RELAY lt FAN IOT T TABLE MOTOR RELAY SECONDARY RELAY Power Relay DRIVE MOTOR 21V W5 o B8 BR1 MONITOR INTERLOCK SWI TCH MIDDLE B INRUSH RELAY Tes TRANS R R MAGNETRON BLK H V DIODE Y HEAT SHRINK DOOR HOOD T C O NOTE DOOR 15
11. back about 1 inch toward the rear of the oven Lift the cover from the oven Vent Blower The vent blower is located at the top rear of the microwave oven See installation instructions for the proper method of directing the vent fan prior to installing the unit To remove the vent blower 1 Remove the oven See Oven Removal 2 Remove 2 Phillips head screws from the back of the oven Grill Assembly To remove the grill assembly Model J VM1540 1 Remove 3 Phillips head screws from the top 5 Liftthe vent blower cover up to expose the vent front of the oven cabinet blower 2 Slide grill to the left and remove To remove the grill assembly Model J VM1750 4 Gently remove the bulb 1 Open the door 2 Remove 2 Phillips head screws from the top front of the oven cabinet 3 Remove 1 Phillios head screw from the right rear corner of the grill EA n r 222227 902020207 070707 278 6 e 070702020202 02 02 A PE PE PE PE PE PE PE PE PE I O P PA PA Pe pa 4 Slide grill to the left and remove Control Panel Assembly The control panel assembly consists of a smart board frame and a touch pad escutcheon To remove the control panel assembly Interior Light 1 Disconnect power to the microwave oven The interior light bulb
12. confined in the oven Touch Control Panel Cooktop Light Grease Filter Removable Turntable Turntable and support must be in place when using the oven The turntable may be removed for cleaning Convenience Guide Shelf some models Lets you microwave several foods at once Food microwaves best when placed directly on the turntable Available at an extra cost from your GE supplier or see GE Service Numbers 10 Rating Plate Located on the inside wall of the microwave oven J VM1750 Controls Cook Defrost Auto Time Express Cook 1 4 3 6 Add Level 30 sec A Time Features Time Cooking Press TIME COOK amp 1 Press once or twice DEFROST AUTO TIME Press twice EXPRESS COOK POWER LEVEL ADD 30 SEC Defrosting by Weight Press DEFROST AUTO TIME Press once Enter Amount of cooking time Amount of defrosting time Starts immediately Power level 1 10 Starts immediately Enter Food weight vst Convenience Features some models Press Enter Option SNACKS See Snacks Guide Snack type 1 6 number weight DEFROST AUTO TIME Food weight Press once A Sensor Features Press Enter Option POPCORN Starts immediately more less time BEVERAGE Starts immediately REHEAT Starts immediately less time POTATO Starts immediately more less time VEGETABLE on some models Starts immediately
13. discharge the capacitor when the oven turns off Under normal operation the capacitor should fully discharge within 30 seconds WARNING Always be certain the capacitor is discharged before servicing Mechanically discharge the capacitor placing an insulated handle screwdriver between the diode connection of the capacitor and the oven chassis ground Note Use the screw head close to the capacitor to ensure ground metal contact To remove the capacitor and diode 3 Remove 6 Phillips head screws from the bottom 2 Disconnect wiring to the high voltage capacitor of the microwave oven cabinet 3 Remove the Phillips head screw that attaches the capacitor and diode to the oven and remove the high voltage capacitor 4 Disconnect the diode from the high voltage capacitor 4 Remove 4 Phillips head screws that attach the high voltage transformer to the bottom plate High Voltage Transformer The high voltage transformer is located on the right side of the microwave oven beneath the magnetron WARNING Prior to servicing the transformer be certain the capacitor is discharged Manuallu discharge by placing an insulated handle screwdriver between the diode connection of the capacitor and the oven chassis ground To remove the high voltage transformer 1 Remove the outer cover See Outer Cover 2 Disconnect wiring to the high voltage transformer m M Door Interlock Switches 3 Remove the
14. full 3 seconds As pads are pressed in the Demo Mode explanations of the pads functions will be scrolled across the display screen No components will actually be energized however during Demo Mode 10 Component Locator Views Front View Grill Assembly Control Panel Assembly ier lt Turntable Shaft a a ee 3 Soe Front View Control Panel Assembly Removed numm MN E RS LR ZI _ 4 P 01 a T Continued Next Page Right Side View C Vent Motor Capactor fet 4 F EWE f a Magnetron 90007 XX re 1 C Er x Li pare 12 Control Boards and Panel Connections J VM1750 Smart Board pr 1 TI ada F 7 mi Care Back Side CN201 Vent Motor CN202 Turntable Motor Cooktop Lamp CN3Q1 Gas Sensor CN401 Hood amp Door Sensing Switch RY203 Secondary Relau Power Relau D amp 11 41 7 Foe 77 4 L
15. is 120V 40 watt number 2 Open the oven door 06 10823 5 Remove the grill assembly See Grill Assembly To remove the interior light 4 Remove the Phillips head screw that attaches 1 Open the oven door the control panel to the oven 2 Remove the 2 Phillips head screws from the top of the oven that attach the grill assembly to the oven and remove the grill assembly Model JVM1750 Uv Y 5 Using a small flat blade screwdriver push in the interior light cover tab and remove the cover Model JVM1540 Continued Next Page ef 5 Tilt the top of the control panel out and Cavity Thermal Cutout mark and disconnect all the wiring harnesses connected to the smart board The cavity thermal cutout is located on the top side of the oven cavity beside the exhaust duct The 6 Remove the Phillips head screw that attaches cutout has a temperature rating of 212 F the ground wire to the control panel assembly The cavity TCO is not resettable Note Model JVM1540 does not have this ground wire To remove the oven thermal cutout 1 Remove the outer cover See Outer Cover 2 Remove the duct assembly See Duct Assembly 3 Disconnect wiring to the oven thermal cutout 4 Slide the oven thermal cutout to the left to remove it from the spring clip attaching it to the oven cavity Duct Assembly To access the cavity TCO the duct assembly must be removed To
16. remove the duct assembly 1 Remove the outer cover See Outer Cover 2 Remove the 3 Phillips head screws that attach the duct assembly to the oven Smart Board To remove the smart board E mon m T 1 Remove the control panel assembly See Control j Panel Assembly 2 Disconnect the touch panel ribbon from the smart board 5 Remove the 3 Phillips head screws that attach the smart board to the control board frame then lift the smart board off the frame towards the back to release the tabs securing it to the front frame 18 Bottom Thermal Cutout The bottom TCO Is located on the bottom right side of the oven behind the control panel The bottom TCO 15 not resettable The bottom TCO s contacts open at approximately 248 F To remove the bottom TCO 1 Remove the control panel assembly See Control Panel Assembly 2 Disconnect wiring from the bottom TCO 3 Remove the Phillips head screw attaching the bottom TCO to the oven then pull the TCO forward Magnetron Thermal Cutout TCO The magnetron TCO is located on the magnetron and opens when the magnetron temperature reaches 302 F The magnetron TCO is a normally closed switch An open reading across the TCO indicates a failed TCO The magnetron TCO resets at 140 F To remove the magnetron TCO 1 Remove the outer cover See Outer Cover 2 Disconnect the wiring to the magnet
17. A The cooling fan and motor are located on the right Cooling Fan Motor 3 F 2 side of the microwave oven A aie JUN A 8383 127 ds To remove the cooling fan and motor 2 1 Remove the control panel assembly See Control Pi Panel Assembly View From Right Side 2 Remove the outer cover See Outer Cover 3 Disconnect the wiring to the cooling fan motor Vent Fan Motor Capacitor 4 Remove the Phillips head screw from the top The vent fan motor capacitor is located on the top right corner of the microwave of the oven above the cooling fan To remove the vent fan motor capacitor 1 Remove the outer cover See Outer Cover 2 Disconnect wiring to the motor capacitor 5 Remove the Phillips head screw that attaches the motor capacitor to the oven Continued Next Page 5 Disconnect wiring to the primary of the high 8 Using a small flat blade screwdriver carefully voltage transformer remove the fan retainer 6 Remove 3 Phillios head screws attaching the cooling fan frame to the microwave 9 Remove 2 Phillips head screws that attach the fan motor to the cooling fan frame kj 7 Move the cooling fan frame out of the oven through the right side of the microwave DD Capacitor and Diode The capacitor has an internal shunt resistor to automatically
18. CORD PLUGGED INTO OUTLET YES VERIFY OUTLET VOLTAGE PRESENT IS DISPLAY LIT NEON LIGHT TESTER IN UNIT 3 PROGRAM UNIT TO COOK YES 8 ves PERFORM KEY YES UNIT ABLE ip dc TG KEY PANEL PROGRAM PRESS START lt YES TEES REFER TO FRONT SERVICE IMMED MONITOR PAGE FOR MORE INFO BREAKER gt gt DOOR TRIPS SWITCH OK Vv e AFTER A FEW SEC CHECK RESISTANCE OF HVC 2K OHM SCALE ON DVM RESISTANCE 2K OHMS hr d MISWIRED REPAIR WATER HEATS NEON TESTER LIGHTS gt lt YES CIRCLE NODES FOLLOW THE ARROWS EXAMPLE 4 INTERMITTENT INSTALL CLAMP ON PROBLEM CALL TAG TEAM FOR RESOLUTION YES AMMETER TO MWO s INTERNAL FUSE LEAD THEN GO TO ABOUT MAGNETRON amp ANY SHORTED lt 2A gt 8A HV lt OR PINCHED gt lt ARE GOOD WIRING Vh CAVITY MAGNETRON LIGHT NO BLOWER AND ONLY ON REPLACE PRIMARY DOOR CAVITY LIGHT ON SWITCH NO ABOUT 120V PRIMARY PROGRAM UNIT FOR SWITCH OK COOKING AND START CHECK VOLTAGE AT RELAY STEM AGAIN CHECK VOLTAGE ACROSS POWER YES 9 RELAY ON PCB DOOR CLOSED NO COOKING PROGRAMMED WIRING SHOULD GET ABOUT 120V TO HVT REPAIR OK NO CMO ONLY IF GO TO START BLOCK INSTALL CLAMP ON AMMETER TO A MAGNETRON LEAD CHECK RESISTANCE OF SECONDA
19. GE Consumer amp Industrial Technical Service Guide SEPTEMBER 2009 GE Spacemaker Over the Range Microwave Oven Sensor Cooking saan e Potato Vegetable Time Defrost f Del Ti Et Ces Ser Ens per HEH 277 Clear 4 5 6 s 7 89 Add J VM1750 J VM1540 21 9190 GE Appliances General Electric Company Louisville Kentucky 40225 IMPORTANT SAFETY NOTICE The information in this service guide is intended for use by individuals possessing adequate backgrounds of electrical electronic and mechanical experience Any attempt to repair major appliance may result in personal injury and property damage The manufacturer or seller cannot be responsible for the interpretation of this information nor can it assume any liability in connection with its use WARNING To avoid personal injury disconnect power before servicing this product If electrical power is required for diagnosis or test purposes disconnect the power immediately after performing the necessary checks RECONNECT ALL GROUNDING DEVICES If grounding wires screws straps clips nuts or washers used to complete a path to ground are removed for service they must be returned to their original position and properly fastened PRECAUTIONS TO BE OBSERVED BEFORE AND DURING SERVICING TO AVOID POSSIBLE EXPOSURE TO
20. OPEN PROBE SWITCH IS CLOSED Sal SENSOR 711 Used in JVM1750 1750 HVM1750 INTERNAL GND IN TRANS Continued Next Page 30 J VM1750 Wiring Diagram WARN I NG WHITE W POWER MUST BE DISCONNECTED BLACK RED R BEFORE SERVICING THIS APPLIANCE BLUE BL ORANGE 0 BROWN BR Ji GROUND HARNESS LEADS MODEL NO JVM1740 JVM1750 EVM1750 HVM1750 0 PARTS LEADS 0 1 gt T TABLE 62 MOTOR OOOOOOO FREE i me lt o 25 H V CAPACITOR 000 T C O 40 70 C 1 E gt o 104 158 F 0 4 L as SENSING C SWITCH TOP CAVITY 5 T C 0 SECONDARY RELAY POWER RELAY 4 lo lo PRIMARY OVEN MOTOR MONITOR ASSY NOISE FILTER INTERLOCK LAMP CAPACITOR INTERLOCK SWI TCH BOTTOM SWITCH MIDDLE NOTE FOR SERVICING REPLACEMENT USE 16GA 105 C THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS 7 Used in JVM1750 EMV1750 HVM1750 31 J VM1540 Schematic Diagram WARNING ae POWER MUST BE DISCONNECTED BEFORE SERVICING THIS APPLIANCE VIOLET AC1 20V 60Hz BR MODEL NO JVM1540 HVM1540 JNM1541 N L BOTTOM 0 POWER CORN a 120 0 C 248 32 F NOISE FILTER J B1 B3
21. RY SIDE OF HVT SINGLE LEAD TO HVC INFINITE OPEN OTR START 1 UNPLUG UNIT 2 DISCHARGE HVC is 3 SET DVM ON 2K OHM SCALE REPLACE HVD 4 MEASURE HVD SIDE OF HVC amp HVC AND RESISTANCE RETEST TO GROUND DVM DIGITAL VOLT METER HVC HIGH VOLTAGE CAPACITOR HVD HIGH VOLTAGE DIODE HVT HIGH VOLTAGE TRANSFORMER SMPS SWITCHING MODE POWER SUPPLY TCO THERMAL CUT OUT TEMPERATURE SENSOR PCB PRINTED CIRCUIT BOARD REPLACE PCB REPLACE HVT 1 SET CLOCK IF NEEDED 2 PLACE CUP OF WATER AND NEON LIGHT TESTER IN UNIT 3 PROGRAM UNIT TO COOK 26 YES s MPSON PCB CHECK FUSE CIRCUIT BREAKER RESET BREAKER REPLACE FUSE IF NEEDED UNPLUG amp DISASSEMBLE IS INTERNAL MWO 15A 20A FUSE OK YES INSTALL SERVICE BREAKER ACROSS FUSE HOLDER PLUG IN UNIT YES x IS DISPLAY LIT A SERVICE BREAKER TRIPPED BEFORE PROGRAMMING FOR COOK VOLTAGE gt REPAIR TCO WIRING RETEST amp REASSEMBLE END THIS IS A LEGEND FIND THESE ON MAIN CHART Continued next page J VM1540 Diagnosis Flow Chart START VERIFY MWO POWER CORD PLUGGED INTO OUTLET 1 SET CLOCK IF NEEDED 2 PLACE CUP OF WATER AND CHECK FUSE CIRCUIT BREAKER RESET BREAKER REPLACE FUSE IF NEEDED UNPLUG amp DISASSEMBLE YES KEY PANEL YES UNIT ABLE TO ion
22. cavity arcing from wire rack or metal foil or used for other than the intended Damage caused after delivery purpose or used commercially Replacement of the cooktop light bulbs EXCLUSION OF IMPLIED WARRANTIES Your sole and exclusive remedy is product repair as provided in this Limited Warranty Any implied warranties including the implied warranties of merchantability or fitness for a particular purpose are limited to one year or the shortest period allowed by law This warranty is extended to the original purchaser and any succeeding owner for products purchased for home use within the USA If the product is located in an area where service by a GE Authorized Servicer is not available you may be responsible for a trip charge or you may be required to bring the product to an Authorized GE Service Location for service In Alaska the warranty excludes the service calls to your home Some states do not allow the exclusion or limitation of incidental or consequential damages This warranty gives you specific legal rights and you may also have other rights which vary from state to state To know what your legal rights are consult your local or state consumer affairs office or your state s Attorney General Warrantor General Electric Company Louisville KY 40225
23. defrosting results for up to 6 pounds of meats poultry and fish Time defrost defrosts for the length of time you specify Turntable On Off Rotate food for even cooking or disable the turntable to accommodate large casserole dishes Removable Two Position Oven Rack The removable oven rack features two positions that allow more flexibility when cooking multiple dishes at one time Control Features J VM1750 Features Door Handle Pull to open the door The door must be securely latched for the microwave to operate Door Latches Window with Metal Shield Screen allows cooking to be viewed while keeping microwaves confined in the oven Shelf Lets you microwave several foods at once Food microwaves best when placed directly on the oven floor or turntable Touch Control Panel You must set the clock and calendar before using the microwave Cooktop Light Grease Filter 8 Removable Turntable Turntable and support must be in place when using the oven The turntable may be removed for cleaning 9 Convenience Guide NOTE Rating plate oven vent s and oven light are located on the inside walls of the microwave oven Continued Next Page J VM1540 Features Door Handle Pull to open the door The door must be securely latched for the microwave to operate Door Latches Window with Metal Shield Screen allows cooking to be viewed while keeping microwaves
24. itor switch is first open and then the door sensing switch and the primary interlock switch contacts close To remove the door interlock switches 1 Disconnect wiring to the door switches 24 Turntable Motor The turntable motor is located on the bottom of the microwave oven Motor is a 21vac motor To remove the turntable motor 1 Remove 6 Phillips head screws from the bottom of the microwave oven cabinet 2 Disconnect the turntable motor wiring harness 5 Remove single Phillips head screw and twist motor slightly clockwise to release motor from the tab on the frame Door Assembly The door is available as a complete assembly or as individual parts A microwave leakage test must be performed time a door is removed replaced disassembled or adjusted for any reason The maximum leakage is 4 MW CM To remove the door first remove the grill assembly See Grill Assembly Then lift the door up and disengage from the hinge pins Surface Lamps The surface lamps are 120V 40 watt incandescent bulbs part number WB06X10823 Note Model JVM1750 has two bulbs The JVM1540 model has a single bulb To remove the surface lamp assemblies 1 Remove the Phillips head screw from the surface lens panel then open the panel Diagnostics and Service Information J VM1750 Diagnosis Flow Chart 1 SET CLOCK IF NEEDED 2 PLACE CUP OF WATER AND START VERIFY MWO POWER
25. ns Note When installing the noise filter ensure all filter wiring is connected to the correct terminals Check to make sure the fuse is not open Check the noise filter for approximate resistance value at the following locations White neutral input to white neutral output 00 Black line input to black line output 0 White neutral input to black line input 23 Line Fuse Note When the 20 amp fuse is blown due to operation of the monitor switch the monitor switch must be replaced Also replace the relays and or the interlock switches when the continuity check shows the contacts are shorted The unit is equipped with a 20 amp fuse part number WB27X10928 The fuse Is located on a receptacle near the top of the noise filter and is common to all functions and door switches To remove the fuse 1 Disconnect power to the microwave oven 2 Remove the control panel assembly See Control Panel Assembly 3 Remove the fuse E m ab EL D Magnetron WARNING Prior to servicing the magnetron be certain the capacitor is discharged Manually discharge by placing an insulated handle screwdriver between the diode connection of the capacitor and the oven chassis ground To remove the magnetron 1 Remove the outer cover See Outer Cover 2 Disconnect wiring to the magnetron 5 Remove the 2 Phillips head screws that attach the magnetron to the oven Disconnect 5
26. ontents m 19 23 18 ON MO OS Kr 11 Sonee cc m 15 and Panel COMMS 534 55 13 6 Control lt 17 21 10 Diggpescs and Service DEOR 26 2 A S 25 DOOF 24 a 18 OPN SS E 16 High E 25 19 17 Door LOCE 28 POO 5 29 20 21 Magnetron Thermal Cutout 19 ea aE R 20 TU 4 ET C MH 15 Wn RTT 15 Schematics and Wiring Diagrams tette tette tente 30 18 20 SAE E 25 TAC MOTOT NN 22 VERE 16
27. rcuits 7 After the test remove temporary jumper leads from interlocks and relay Reconnect monitor switch leads replace fuse 8 Replacement of any parts in monitor circuit requires repeating this entire test procedure To test the interlocks 1 Disconnect power to the oven 2 Open the control panel 5 Discharge the capacitor 4 Check continuity of COM and 21 SSS e Door Closed 0Q 2 DOOR SENSE S W Door Open e Q MONITOR S W PRIMARY S W Monitor Switch The monitor switch is located between the top and bottom interlocks The monitor switch is operated The switch housing is not adjustable It is fixed on indirectly by the bottom latch pawl the front cavity with two screws To test the interlock system IMPORTANT CHECK FOR MICROWAVE LEAKAGE 1 Disconnect power to the oven AFTER REPLACING OR ADJUSTING DOOR INTERLOCK SWITCHES OR BRACKETS 2 Open the control panel 3 Discharge the capacitor 4 Disconnect the monitor switch leads and test at the terminals Door Closed Door Open 0 Q 5 Reconnect the switch wiring mL Key Panel Test necessary the key panel pads can be verified by a continuity test For ease of handling the key panel should be removed and placed on a flat surface Check the continuity between the connections at the end of the ribbon Use high scale RIBBON RIBBON 1750 HVM1750 EVM1750 CONN CONN ADD 30 SEC AM
28. ron 3 Remove the 2 Phillips head screws that attach the magnetron to the oven Disconnect m yy ey E View From Right Side 4 Disconnect wiring to the magnetron TCO 5 Remove 2 Phillips head screws that attach the magnetron TCO to the magnetron Hood Thermal Cutout TCO The hood TCO is attached to the base plate The contacts close at approximately 158 F and open at approximately 104 To remove the hood 1 Remove the control panel assembly See Control Panel Assembly 2 Disconnect wiring to the hood TCO 5 Remove the Phillips head screw attaching the hood TCO to the oven and pull the TCO forward Stirrer Assembly The stirrer assembly consists of a blade pin and cover The blade Is air driven and rotates on a shaft embedded in the stirrer cover The stirrer assembly is located at the top of the oven cavity To remove the stirrer 1 Disconnect power from the microwave oven and open the door 2 Remove the plastic clip from the stirrer cover 3 Rotate the stirrer cover to the left and remove the stirrer cover gt N Noise Filter The noise filter helps to suppress electromagnetic interference EMI radiating from the operation of the oven and also protects the oven from any line noise The noise filter is located on the right side of the oven behind the control panel The noise filter is held in place by three compression pi
29. s PRIMARY OVEN MOTOR MONITOR ASSY NOISE FILTER INTERLOCK LAMP CAPACITOR INTERLOCK SWI TCH BOTTOM SWITCH MIDDLE NOTE FOR SERVICING REPLACEMENT USE 16GA 105 C THERMOPLASTIC COVERED WIRE EXCEPT FOR HIGH VOLTAGE LEADS OR AS NOTED ON SPECIAL LEADS 33 All warranty service provided by our Factory Service Centers Staple your receipt here or an authorized Customer Care technician To schedule service Proof of the original purchase on line visit us at ge com or call 800 GE CARES 800 432 2737 date is needed to obtain service Please have serial and model numbers available when calling for service under the warranty For The Period Of GE Will Replace One Year Any part of the microwave oven which fails due to a defect in materials or workmanship From the date of the During this limited one year warranty GE will also provide free of charge all labor and related original purchase service to replace the defective part What GE Will Not Cover Service trips to your home to teach you how to use Replacement of house fuses or resetting of circuit the product breakers Improper installation delivery or maintenance Damage to the product caused by accident fire floods Product not accessible to provide required service or acts of God Incidental or consequential damage caused by possible Failure of the product or damage to the product if it is defects with this appliance abused misused for example
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