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Explanation of key buttons like Start, Stop/Reset, and their operational roles.
Procedure for setting the time-of-day (TOD) on the oven's digital display.
Steps to test the two-stage cooking sequence and programmer circuit.
Detailed circuit diagrams for various country-specific models (HNE, KNQ, KKE, etc.).
Detailed circuit diagrams for models in China (XNE) and CIS countries (ZPE).
Explains how the inverter controls output power for variable cooking.
Details the digital programmer's control signal for grill cooking.
Describes how microwave and grill cooking are combined.
Explains the auto defrost feature and weight-based cooking times.
Details the auto sensor cooking process and calculation of cooking time.
Explains the quick and easy auto sensor reheat feature.
Importance of proper grounding for safe operation and repair.
Critical safety warnings regarding high voltage and temperature in the inverter.
Guidelines for replacing a blown 10A fuse, especially after short switch operation.
Steps to confirm proper assembly and electrical connections after repair.
Step-by-step guide for removing and replacing the magnetron.
Procedure for removing and replacing the high voltage inverter unit.
Guide for removing and replacing the digital programmer circuit and membrane keypad.
Instructions for disassembling and reassembling the oven door.
Procedure for removing and replacing the turntable motor.
Steps for removing and replacing the quartz heater.
Guide for removing and replacing the steam sensor unit.
Testing continuity of primary/secondary latch switches and power relay 1.
Testing continuity of the short switch and monitor circuit.
Procedure for checking magnetron continuity for faults.
Checking membrane key board continuity by tapping pads.
Procedures for testing the inverter power supply unit's operation and input current.
Testing the steam sensor and digital programmer circuit function.
Checking the oven temperature sensor thermistor for proper resistance.
Adjusting primary/secondary latch switches and short switch during door hook assembly.
Method for measuring microwave output power using a simple test.
Diagnosing and correcting issues when the oven stops during cooking.
Troubleshooting guide for various issues like no display, key input errors, low output.
Troubleshooting specific problems related to the digital programmer circuit.
Procedures for repairing the inverter PCB, including safety warnings.
Steps to test the inverter PCB after repair, including input current checks.
Explanation of key buttons like Start, Stop/Reset, and their operational roles.
Procedure for setting the time-of-day (TOD) on the oven's digital display.
Steps to test the two-stage cooking sequence and programmer circuit.
Detailed circuit diagrams for various country-specific models (HNE, KNQ, KKE, etc.).
Detailed circuit diagrams for models in China (XNE) and CIS countries (ZPE).
Explains how the inverter controls output power for variable cooking.
Details the digital programmer's control signal for grill cooking.
Describes how microwave and grill cooking are combined.
Explains the auto defrost feature and weight-based cooking times.
Details the auto sensor cooking process and calculation of cooking time.
Explains the quick and easy auto sensor reheat feature.
Importance of proper grounding for safe operation and repair.
Critical safety warnings regarding high voltage and temperature in the inverter.
Guidelines for replacing a blown 10A fuse, especially after short switch operation.
Steps to confirm proper assembly and electrical connections after repair.
Step-by-step guide for removing and replacing the magnetron.
Procedure for removing and replacing the high voltage inverter unit.
Guide for removing and replacing the digital programmer circuit and membrane keypad.
Instructions for disassembling and reassembling the oven door.
Procedure for removing and replacing the turntable motor.
Steps for removing and replacing the quartz heater.
Guide for removing and replacing the steam sensor unit.
Testing continuity of primary/secondary latch switches and power relay 1.
Testing continuity of the short switch and monitor circuit.
Procedure for checking magnetron continuity for faults.
Checking membrane key board continuity by tapping pads.
Procedures for testing the inverter power supply unit's operation and input current.
Testing the steam sensor and digital programmer circuit function.
Checking the oven temperature sensor thermistor for proper resistance.
Adjusting primary/secondary latch switches and short switch during door hook assembly.
Method for measuring microwave output power using a simple test.
Diagnosing and correcting issues when the oven stops during cooking.
Troubleshooting guide for various issues like no display, key input errors, low output.
Troubleshooting specific problems related to the digital programmer circuit.
Procedures for repairing the inverter PCB, including safety warnings.
Steps to test the inverter PCB after repair, including input current checks.
General| Brand | National |
|---|---|
| Model | NN-V690P |
| Category | Microwave Oven |
| Turntable Diameter | 315mm |
| Color | White |
| Child Safety Lock | Yes |
| Defrost Options | Yes |
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