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General| Brand | Kenmore |
|---|---|
| Model | 721.62643 |
| Category | Microwave Oven |
| Language | English |
Essential safety measures for servicing to prevent exposure to microwave energy.
Detailed technical specifications including power, dimensions, and components.
Guidelines and safety measures for installation.
Importance and procedure for grounding the appliance.
Identification and layout of control panel elements.
Detailed explanation of each control panel function and button.
Electrical schematic showing primary circuit layout and connections.
Secondary electrical schematic, possibly including filters.
Diagram of the key matrix for touch panel inputs.
Safety and operational precautions for general microwave use.
Procedure to verify proper operation after installation or repair.
Overview of microwave safety features and capabilities.
Critical safety warnings and practical tips for unit servicing.
Safety warnings and responsibilities for checking microwave energy leakage.
List of equipment required for microwave leakage measurements.
Procedure for measuring microwave radiation leakage.
Procedure for measuring leakage with the outer casing detached.
Procedure for measuring leakage on an assembled oven.
Method for measuring microwave power output using a water load.
Guidelines for documenting test results and notifying about leakage.
Critical safety precautions before starting disassembly.
Steps for safely removing the main power and control circuit board.
Instructions for removing the external casing.
Procedure for removing safety interlock switches.
Detailed steps for carefully removing the magnetron.
Steps for detaching the microwave door assembly.
Procedure for taking apart the microwave door.
Instructions for reassembling and mounting the door.
Guide for removing the ventilation fan assembly.
Steps for removing the turntable motor.
Explanation of the door lock mechanism for safety.
Steps to adjust door latches and interlock switches for safety.
Procedure to check door latch and switch alignment.
Testing the correct sequence of door interlock switches.
Final check for microwave energy leakage after adjustments.
Testing continuity of the primary interlock switch.
Testing continuity of the secondary interlock switch.
Testing continuity of the interlock monitor switch.
Safety warnings before conducting tests.
Testing magnetron resistance.
Testing high-voltage transformer resistance.
Testing high-voltage capacitor.
Testing high-voltage diode.
Testing touch key board connector resistance.
Checking continuity of Relay 2.
Troubleshooting fuse blowing causes.
Troubleshooting Relay 1 issues.
Identifying defective circuit board symptoms.
Diagnosing display not showing time of day prompt.
Diagnosing incorrect display numbers/indications.
Diagnosing unit not heating.
Diagnosing no buzzing during operation.
Diagnosing ventilation fan not operating.
Exploded diagram of microwave oven door components.
Exploded diagram of control panel and electronic components.
Exploded diagram of parts within the main oven cavity.
Exploded diagram of door latch board and switch components.
Exploded diagram of interior parts including turntable.
Exploded diagram of additional interior parts.
Further exploded diagram of interior parts.
Exploded diagram of parts for installation.
