GE MV1526W, MV1526B service manual Disassembly Instructions, Important Notes

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DISASSEMBLY INSTRUCTIONS

IMPORTANT NOTES:

UNIT MUST BE DISCONNECTED FROM ELEC- TRICAL OUTLET WHEN MAKING REPAIRS, RE- PLACEMENTS, ADJUSTMENTS AND CONTIN- UITY CHECKS. WAIT AT LEAST ONE MINUTE, UNTIL THE HIGH VOLTAGE CAPACITOR IN THE HIGH VOLTAGE POWER SUPPLY HAS FULLY DISCHARGED.

THE CAPACITOR SHOULD BE DISCHARGED BY USING INSULATED WIRE - I.E. TEST PROBE CONNECTED TO 10K-OHM RESISTOR IN SERIES TO GROUND.

WHEN RECONNECTING THE WIRE LEADS TO ANY PART, MAKE SURE THE WIRING CONNE- CTIONS AND LEAD COLORS ARE CORRECTLY MATCHED ACCORDING TO THE OVERALL CIR- CUIT DIAGRAM. (ESPECIALLY SWITCHES AND HIGH VOLTAGE CIRCUIT.)

A.REMOVING POWER AND CONTROL CIRCUIT BOARD (Figures 1, 2 and 3)

(1)Remove a screw securing the control panel assembly to the oven cavity.

(2)Remove the control panel with pushing it upward.

(3)Remove the connector (CN1) and wire leads (Relay6) from the circuit board.

Control Panel

Screw

Power Transformer

Relay 7

(Relay 7)

(4) Remove 3 screws securing the circuit board.

Circuit Board

Figure 2

(5)Remove the FPC connector from the terminal socket following “HOW TO REMOVE THE FPC CONNECTOR” on the next page.

(6)Remove the circuit board from the control bracket carefully.

Control Bracket

FPC Connector(S1)

Circuit Board

(CN1)

Figure 1

Figure 3

7-4

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Contents Microwave Oven Safety Precautions in this ManualPage Table of Contents Specifications Antenna Microwave RadiationGrounding Instructions InstallationControl Panel Operating InstructionsControl Panel Instructions Schematic Diagram Overall Circuit DiagramMatrix Circuit for Touch KEY Board Trial Operation General Information for ServiceGeneral Precautions in USE Features and Specifications FeaturesService Information Precautions and Repair Service TipsPreliminary Equipment Microwave Leakage TestMeasurement with the Outer Case Removed Power Output MeasurementImportant Notes Disassembly InstructionsHOW to Insert the F.P.C. Connector HOW to Remove the F.P.C. ConnectorRemoving the OUT CASEFigure Wire Color Removing the Door Interlock Switches Figures 9,10Removing Magnetron Removing Door Figure Removing the Ventilation FAN ASS’Y Assembling DoorRemoving the Turntable Motor Interlock Mechanism Interlock SystemTest the Latch and Switch Sequence Components Test Procedure Results SwitchesInterlock Continuity Test HIGH-VOLTAGE Test and Checkout PROCEDURES, and Trouble ShootingTest Procedures MagnetronHIGH-VOLTAGE Diode HIGH-VOLTAGE CapacitorFPC Connector Touch KEY Board Connectorkey CONMatrix Circuit for RELAY2 Checkout ProceduresPower Level Checkout Procedures for Fuse BlowingYES Checkout Procedures for Relay Problem aRELAY3 Problem B YES GoodCheckout Procedures for Circuit Board Trouble Shooting Thermostat Page Fuse Exploded View Control Panel Oven Cavity Latch Board Interior 50FZZA Installation Schematic Diagram of P.C.B Printed Circuit Board July

MV1526W, MV1526B specifications

The GE MV1526B and MV1526W are advanced medium-voltage switchgear solutions designed for reliability, efficiency, and safety in various industrial and utility applications. These models from General Electric (GE) represent a significant leap forward in switchgear technology, incorporating state-of-the-art features and benefits for modern electrical systems.

One of the primary features of the MV1526B and MV1526W is their robust construction, designed to withstand the harshest environmental conditions. Built with high-quality materials, these models ensure long-lasting performance while providing superior protection against external elements such as moisture, dust, and extreme temperatures. This durability ensures low maintenance costs and extended service life, making them an excellent choice for long-term investments.

Both models utilize vacuum circuit breaker technology, which is critically important for medium-voltage applications. This technology minimizes arcing during operations, significantly enhancing safety and reducing maintenance periods. The vacuum interrupters are designed to provide superior fault interruption capabilities, ensuring that the electrical systems are safeguarded against overloads and short circuits.

The MV1526B and MV1526W also showcase GE's advanced digital controls and monitoring capabilities. Features such as real-time diagnostics and remote monitoring allow for proactive maintenance, enabling operators to identify potential issues before they escalate. This not only enhances system reliability, it also minimizes downtimes, ultimately resulting in greater operational efficiency.

Another significant characteristic of these models is their compact design. The MV1526B and MV1526W applications are engineered to maximize space while maintaining operational functionality. This compact footprint is particularly advantageous in environments where space is a premium, allowing for easier installations and future expansions.

Moreover, the flexibility of configuration is a standout feature of the MV1526 series. Users can customize their switchgear layout based on specific operational needs, accommodating various configurations for different applications. This adaptability makes the MV1526B and MV1526W suitable for a range of sectors, including energy, manufacturing, and commercial facilities.

In conclusion, the GE MV1526B and MV1526W models exemplify cutting-edge technology and engineering excellence, providing industrial and utility applications with versatile, reliable, and safe medium-voltage solutions. Their advanced features, including vacuum circuit breaker technology, digital monitoring capabilities, robust construction, and compact design, make them ideal choices for modern electrical infrastructure.
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