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GE JVM1790SK - Profile 1.7 cu. Ft. Convection Microwave User Manual

GE JVM1790SK - Profile 1.7 cu. Ft. Convection Microwave
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Microwave Oven
Service Manual
JVM1790BK/CK/SK/WK
CAUTION
BEFORE SERVICING THE UNIT, READ THE
SAFETY PRECAUTIONS IN THIS MANUAL.

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GE JVM1790SK - Profile 1.7 cu. Ft. Convection Microwave Specifications

General IconGeneral
Capacity1.7 cu. ft.
TypeConvection Microwave
Power Output1000 Watts
Control TypeElectronic Touch
Interior MaterialStainless Steel
TurntableYes
ConvectionYes
Over-the-RangeYes
Cooking ModesMicrowave, Convection, Combination
ColorStainless Steel
Pre-Programmed SettingsYes
Child LockYes
Warranty1 Year Limited
Dimensions (W x H x D)29.88 x 16.5 x 15.75 inches
Exterior Dimensions29.88 x 16.5 x 15.75 inches

Summary

Safety Precautions

Microwave Energy Exposure Precautions

Guidelines to prevent exposure to microwave energy during servicing.

Specifications

Technical Details and Ratings

Lists technical specifications like power, frequency, voltage, and dimensions.

Installation and Grounding

Installation Guidelines

Instructions for proper setup and placement of the appliance.

Grounding Instructions

Importance and procedure for grounding the microwave for safety.

Operating Instructions

Control Panel Layout

Diagram showing the arrangement of buttons on the control panel.

Control Panel Functions

Detailed Button Explanations

Explains the function of each button on the control panel.

Circuit Diagrams

Overall Circuit Schematic

A detailed schematic showing the interconnections of major components.

Matrix Circuit for Touch Key Board

Touch Key Board Mapping

Shows the mapping of touch keys to circuit connections.

General Service Information

General Precautions in Use

Advice on safe and proper operation to maintain the appliance.

Trial Operation Procedure

Steps to verify proper function after installation or repair.

Performance Test for Microwave

Procedure to test microwave output power using a water load.

Service Precautions and Tips

Preliminary Service Precautions

Critical warnings and general safety measures before starting repairs.

Microwave Leakage Test

Measuring Microwave Energy Leakage

Method for measuring microwave radiation leakage.

Disassembly Instructions

Removing Power and Control Circuit Board

Step-by-step guide to remove the main circuit board assembly.

Oven Removal and Outer Case

Removing the Oven from Wall

Instructions for safely detaching the microwave from its wall mount.

Removing the Outer Case

Procedure for taking off the external housing of the microwave.

Magnetron Removal

Magnetron Component Removal Steps

Steps to safely detach and remove the magnetron component.

Interlock System

Interlock Mechanism Description

Explanation of the door lock system for safety.

Adjustment Procedures for Latches and Switches

Steps to align door latches and interlock switches correctly.

Interlock Continuity Test

Primary Interlock Switch Test

Procedure to check the continuity of the primary interlock switch.

Secondary Interlock Switch Test

Procedure to check the continuity of the secondary interlock switch.

Monitor Switch Test

Procedure to check the continuity of the interlock monitor switch.

Component Testing Procedures

Magnetron and High-Voltage Transformer Tests

Resistance tests for magnetron and high-voltage transformer.

High-Voltage Capacitor and Diode Tests

Testing procedures for high-voltage capacitor and diode continuity.

Checkout Procedures

Fuse Blowing Troubleshooting

Troubleshooting common causes of fuse blowing.

Troubleshooting Common Problems

Display and Power Issues

Diagnosing issues with power supply and display window.

Start Function and Heating Problems

Troubleshooting start function failures and no heating issues.

Exploded View Diagrams

Door Parts Diagram

Illustrated breakdown of the microwave door components.

Controller Parts Diagram

Illustrated breakdown of the control panel and its components.

Oven Cavity Parts Diagram

Illustrated breakdown of internal oven cavity components.

Installation Parts Diagram

Illustrated breakdown of parts related to installation.

Printed Circuit Board Schematic

PCB Component Layout and Connections

Detailed schematic showing the layout and connections of the PCB.

Printed Circuit Board Layout

PCB Solder Guide and Component Placement

Visual guide indicating solder points and component placement on the PCB.

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