Service Manual
Page 3
...is very dangerous to repair it has very hot (high voltage) circuitry. Do not touch aluminum heat sink because it is off. Inverter Circuit (U) with extremely high voltage and high current. INVERTER POWER SUPPLY DIAGRAM H.V INVERTER(U) * 3 INVERTER SUPPORT BRACKET...as the high voltage transformer and high voltage capacitor in circuit. DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY (U) INVERTER WARNING This Inverter board looks like a regular PCB. DO NOT: * 1. * 2. * 3. * 4. * 5. High voltage may remain in ordinary microwave ovens. 2....
...is very dangerous to repair it has very hot (high voltage) circuitry. Do not touch aluminum heat sink because it is off. Inverter Circuit (U) with extremely high voltage and high current. INVERTER POWER SUPPLY DIAGRAM H.V INVERTER(U) * 3 INVERTER SUPPORT BRACKET...as the high voltage transformer and high voltage capacitor in circuit. DANGER OF HIGH VOLTAGE AND HIGH TEMPERATURE (HOT/LIVE) OF THE INVERTER POWER SUPPLY (U) INVERTER WARNING This Inverter board looks like a regular PCB. DO NOT: * 1. * 2. * 3. * 4. * 5. High voltage may remain in ordinary microwave ovens. 2....
Service Manual
Page 6
...beeps 5 times and shuts off . Time of day or colon if set appears in the display. 5. Auto Cook OPERATION 1. Press Power Level pad once to set Medium power. (2nd stage) P 5 5. When 1st stage cooking time has elapsed. Set the weight for Two Stage OPERATION 1. Oven shuts ... into wall outlet. Press Power Level pad 46 times to set High power. (1st stage) SCROLL DISPLAY P 10 3. Oven beeps twice and automatically switches to select Bacon) 3 - 5 - Time of lb / oz. If you pluge the power supply cord into the wall outlet, microwave oven automatically enter into the...
...beeps 5 times and shuts off . Time of day or colon if set appears in the display. 5. Auto Cook OPERATION 1. Press Power Level pad once to set Medium power. (2nd stage) P 5 5. When 1st stage cooking time has elapsed. Set the weight for Two Stage OPERATION 1. Oven shuts ... into wall outlet. Press Power Level pad 46 times to set High power. (1st stage) SCROLL DISPLAY P 10 3. Oven beeps twice and automatically switches to select Bacon) 3 - 5 - Time of lb / oz. If you pluge the power supply cord into the wall outlet, microwave oven automatically enter into the...
Service Manual
Page 7
... the display window. Press Auto Reheat pad twice for 3.5 oz serving. (Select 1.75. 2.65. 2.85. 3.0 or 3.5 oz ) 2. Time of cooking time appears in the display. 6. HIGH) P 6 (MEDIUM) P 5 P 4 P 3 (MEDIUM-LOW) P 2 P 1 (LOW) Display Window P 10 P 9 P 8 P 7 P 6 P 5 P 4 P 3 P 2 P 1 10. Press Start pad 3 ... down . 2.00 3.When cooking time has elapsed, Oven beeps 5 times and shuts off . Power Level Press Power Level once twics 3 times 4 times 5 times 6 times 7 times 8 times 9 times 10 times Power Level P 10 (HIGH) P 9 P 8 P 7 (MED. Pour 150 15cc (4.5 1/2 ozs) of room temperature...
... the display window. Press Auto Reheat pad twice for 3.5 oz serving. (Select 1.75. 2.65. 2.85. 3.0 or 3.5 oz ) 2. Time of cooking time appears in the display. 6. HIGH) P 6 (MEDIUM) P 5 P 4 P 3 (MEDIUM-LOW) P 2 P 1 (LOW) Display Window P 10 P 9 P 8 P 7 P 6 P 5 P 4 P 3 P 2 P 1 10. Press Start pad 3 ... down . 2.00 3.When cooking time has elapsed, Oven beeps 5 times and shuts off . Power Level Press Power Level once twics 3 times 4 times 5 times 6 times 7 times 8 times 9 times 10 times Power Level P 10 (HIGH) P 9 P 8 P 7 (MED. Pour 150 15cc (4.5 1/2 ozs) of room temperature...
Service Manual
Page 10
... diodes and Capacitors, generates the necessary 4,000V DC needed for heating of the microwave oven from the line voltage,120v 60Hz AC input. Output power of power relay B is set at any power selection except for respective serving by categories. (B) When cooking time the display window...to determine operating conditions and output necessary to control PWM signal to the inverter Power Supply to "High" power. Variable power cooking control The coil of power relay B (RY1) is energized intermittently by means of power relay B contacts in the DPC. 3. Then this Auto Control feature is ...
... diodes and Capacitors, generates the necessary 4,000V DC needed for heating of the microwave oven from the line voltage,120v 60Hz AC input. Output power of power relay B is set at any power selection except for respective serving by categories. (B) When cooking time the display window...to determine operating conditions and output necessary to control PWM signal to the inverter Power Supply to "High" power. Variable power cooking control The coil of power relay B (RY1) is energized intermittently by means of power relay B contacts in the DPC. 3. Then this Auto Control feature is ...
Service Manual
Page 11
... seconds after the 10 second period, and the Auto program selected is no microwave activity, and when calculating the T2 time by microwave without setting a power level or selecting a time. Please consult variable Power Microwave cookbook for procedures. This T2 time is produced. Balance of cooking time (T2... process is a quick and easy way to be increased or decreased. Sensor Cooking Category Frozen Vegetables P1 Power HIGH Sensor Reheat (All Sensor Modeis) Category P1 Power Sensor Recheat HIGH P2 Power LOW P2 Power LOW K Factor Standard 0.1 K Factor Standard 0.1 - 10 -
... seconds after the 10 second period, and the Auto program selected is no microwave activity, and when calculating the T2 time by microwave without setting a power level or selecting a time. Please consult variable Power Microwave cookbook for procedures. This T2 time is produced. Balance of cooking time (T2... process is a quick and easy way to be increased or decreased. Sensor Cooking Category Frozen Vegetables P1 Power HIGH Sensor Reheat (All Sensor Modeis) Category P1 Power Sensor Recheat HIGH P2 Power LOW P2 Power LOW K Factor Standard 0.1 K Factor Standard 0.1 - 10 -
Service Manual
Page 12
... magnetron filament terminals to the output terminals. Servicemen should be replaced, remove the power plug from the outlet and short the Inverter output terminal of the Inverter. Check the grounding 3. The microwave oven is free from danger in the high voltage capacitors. Inverter Warnings NEW H.V. Though it is designed to the Aluminum heat...
... magnetron filament terminals to the output terminals. Servicemen should be replaced, remove the power plug from the outlet and short the Inverter output terminal of the Inverter. Check the grounding 3. The microwave oven is free from danger in the high voltage capacitors. Inverter Warnings NEW H.V. Though it is designed to the Aluminum heat...
Service Manual
Page 14
...) can be sure the antenna gasket is attached to the escutcheon base with double faced adhesive tape. Low voltage transformer and/or power relays (RY1, RY2) NOTE: Be sure to orifice. (F) Separate the fan motor from the terminal pins of escutcheon base and... orifice assembly. (C) Remove orifice assembly/Inverter power supply (U) from oven assembly. (Refer page 15) (D) Remove fan blade from the fan motor shaft by pulling it straight out. (E) Remove 2 screws holding air guide c to prevent microwave leakage. Magnetron (A) Discharge the high voltage capacitors, as follows; SCREW - 13...
...) can be sure the antenna gasket is attached to the escutcheon base with double faced adhesive tape. Low voltage transformer and/or power relays (RY1, RY2) NOTE: Be sure to orifice. (F) Separate the fan motor from the terminal pins of escutcheon base and... orifice assembly. (C) Remove orifice assembly/Inverter power supply (U) from oven assembly. (Refer page 15) (D) Remove fan blade from the fan motor shaft by pulling it straight out. (E) Remove 2 screws holding air guide c to prevent microwave leakage. Magnetron (A) Discharge the high voltage capacitors, as follows; SCREW - 13...
Service Manual
Page 17
...0 Ω 3. Program oven at door opened and closed positions with door opened and closed positions using lowest scale of switches at High power for USA only DO NOT try to 1.7A H98 . Tap TIMER 3. CURRENT TRANSFORMER VARISTOR (C) Test the continuity of the ohm ... input current is approximately 0.4 to 0.8A 04-031M Unplug CN701 INPUT AMPERE 0.4 to test 2. High voltage is recommended to Primary Latch Switch and Secondary Latch Switch. It is present at High power for testing. H.V. 1. FILM CAPACITORS (B) Unplug lead connectors to use an AC line input current Ampere...
...0 Ω 3. Program oven at door opened and closed positions with door opened and closed positions using lowest scale of switches at High power for USA only DO NOT try to 1.7A H98 . Tap TIMER 3. CURRENT TRANSFORMER VARISTOR (C) Test the continuity of the ohm ... input current is approximately 0.4 to 0.8A 04-031M Unplug CN701 INPUT AMPERE 0.4 to test 2. High voltage is recommended to Primary Latch Switch and Secondary Latch Switch. It is present at High power for testing. H.V. 1. FILM CAPACITORS (B) Unplug lead connectors to use an AC line input current Ampere...
Service Manual
Page 19
... of Primary latch switch, Secondary latch switch and short switch to the door hook is as T2). (D) The normal temperature rise at High power position for exactly one liter of glass cook plate. Completely tighten the screws holding the door hook assembly to the oven assembly, adjust...by performing IEC standard test procedures. Primary latch switch and the short switch. Check for High power and heat it is blown due to ensure proper connection. 1. No. Measurement of microwave output The output power of arrow in their ability to hold the switches. * Refer to schematic diagram to ...
... of Primary latch switch, Secondary latch switch and short switch to the door hook is as T2). (D) The normal temperature rise at High power position for exactly one liter of glass cook plate. Completely tighten the screws holding the door hook assembly to the oven assembly, adjust...by performing IEC standard test procedures. Primary latch switch and the short switch. Check for High power and heat it is blown due to ensure proper connection. 1. No. Measurement of microwave output The output power of arrow in their ability to hold the switches. * Refer to schematic diagram to ...
Service Manual
Page 21
... electrical shock hazard. Defective DPC 1. Adjust door and latch switches. Adjust door and latch switches. Check high voltage component according to DPC (Flat cable) 3. Oven can program but no microwave oscillation. (No heat while oven lamp and fan motor turn on ) CAUSE 1. Open or loose wiring...connector from these switches must hold the plastic connector instead of all . 2. First of the lead wire and then disconnect it has continuity, replace power relay B (RY-1)'s. 1. Fan motor turn on when oven is plugged in order to your body. 6. 120V AC is present on and ...
... electrical shock hazard. Defective DPC 1. Adjust door and latch switches. Adjust door and latch switches. Check high voltage component according to DPC (Flat cable) 3. Oven can program but no microwave oscillation. (No heat while oven lamp and fan motor turn on ) CAUSE 1. Open or loose wiring...connector from these switches must hold the plastic connector instead of all . 2. First of the lead wire and then disconnect it has continuity, replace power relay B (RY-1)'s. 1. Fan motor turn on when oven is plugged in order to your body. 6. 120V AC is present on and ...
Service Manual
Page 23
...replaced with a new one . * Check magnetron filament for troubleshooting. NOTE: DO NOT try to normal operation mode. It is no microwave oscillation with a self diagnostics failure code system which will flow STOP! Off alignment of inverter board operation is dangerous. Troubleshooting of H97,...Check magnetron filament continuity Open Magnetron* OK refer to the very high voltage and current that is opened, AC input Amperes 1 to repair or adjust without sufficient test equipment because this Inverter Power Supply (U) and also DO NOT RE-ADJUST PRESET VOLUME on ...
...replaced with a new one . * Check magnetron filament for troubleshooting. NOTE: DO NOT try to normal operation mode. It is no microwave oscillation with a self diagnostics failure code system which will flow STOP! Off alignment of inverter board operation is dangerous. Troubleshooting of H97,...Check magnetron filament continuity Open Magnetron* OK refer to the very high voltage and current that is opened, AC input Amperes 1 to repair or adjust without sufficient test equipment because this Inverter Power Supply (U) and also DO NOT RE-ADJUST PRESET VOLUME on ...
Service Manual
Page 24
Program High power for the presence of ZNR, L.V.T., Oven Lamp etc. NEW H.V. When the fuse pattern (PF2)...not turn on even though the program has been set and the start pad is tapped No microwave oscillation at high power Q220 transistor Replace display and check operation Replace IC-1 and check operation 1 Unplug CN702(2 pin...of IC-220) Abnormal Normal IC-220 ➝ IC-1, CX320 NOTE Procedure of unnecessary segment H97/H98 appears in . If any power setting Dark or unclear display Missing or lighting of fuse pattern repairing is detected, replace the defective parts. STEP 1 1 1 ...
Program High power for the presence of ZNR, L.V.T., Oven Lamp etc. NEW H.V. When the fuse pattern (PF2)...not turn on even though the program has been set and the start pad is tapped No microwave oscillation at high power Q220 transistor Replace display and check operation Replace IC-1 and check operation 1 Unplug CN702(2 pin...of IC-220) Abnormal Normal IC-220 ➝ IC-1, CX320 NOTE Procedure of unnecessary segment H97/H98 appears in . If any power setting Dark or unclear display Missing or lighting of fuse pattern repairing is detected, replace the defective parts. STEP 1 1 1 ...