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General| Brand | Panasonic |
|---|---|
| Model | Inverter NN-CT776SBPQ |
| Category | Microwave Oven |
| Language | English |
Identifies and explains the various buttons and indicators on the microwave control panel.
Details dangers and warnings related to high voltage and heat on the inverter PCB.
Explains how the inverter controls output power via a pulse width modulated signal.
Describes the operation and parameters for automatic defrost and cooking programs.
Emphasizes grounding, high voltage, and heat hazards before and during repair.
Covers precautions for part replacement, fuse issues, cavity access, and post-repair checks.
Advises caution when handling the unit due to potentially sharp edges.
Step-by-step guide for safely removing and installing the magnetron component.
Procedure for safely removing and replacing the inverter circuit board assembly.
Instructions for safely disconnecting and removing the digital programmer circuit and its keyboard.
Guidance on soldering and replacing low voltage transformer or power relays on the DPC.
Steps to safely remove the fan motor assembly from the microwave oven.
Procedure for disassembling and reassembling the microwave oven door for replacement.
Instructions for removing the turntable motor by breaking off the cover and unscrewing.
Tests for primary/secondary latch switches and power relay B continuity.
Procedure to test the continuity of the short switch and monitor circuit.
Checks continuity for magnetron filament and case to diagnose faults.
Verifies continuity of switch terminals on the DPC by testing keyboard pads.
Strong warning against attempting to repair the inverter power supply; replacement is advised.
Guidelines for installing and adjusting door latch switches for proper operation.
Method for testing microwave output power by measuring water temperature rise.
Important safety warnings and general precautions before performing troubleshooting.
Diagnoses symptoms like oven dead, no display, or no key input and provides corrections.
Addresses issues related to the 10A fuse blowing and potential causes/corrections.
Covers symptoms like low output, buzzing noise, and turntable motor issues.
Guides on diagnosing inverter shutdown by input voltage or input current.
Provides steps for diagnosing faults within the digital programmer circuit and its components.
Explains how to check diodes, transistors, and digital transistors using a resistance meter.
