Mitsubishi Motherboard P203758B000G01

Mitsubishi Motherboard P203758B000G01 is used in Mitsubishi elevator control cabinet and main PCB replacement applications.

This board is commonly requested as a Mitsubishi elevator main board, P1 PCB, elevator motherboard, or main control PCB. It is usually identified by the printed part number on the original board rather than by the elevator model alone.

In the elevator spare parts market, this product may also be searched as:

• Mitsubishi Elevator Main Board
• Mitsubishi Elevator P1 PCB
• Mitsubishi Elevator Motherboard
• Mitsubishi Elevator Main PCB Board
• Mitsubishi Elevator Control Board
• Mitsubishi LEHY-II Elevator Main Board
• Mitsubishi Elevator PCB Board

The main model reference for this page is:

• P203758B000G01

Related version references may include:

• P203758B000G02
• P203758B000G03
• P203758B000G05
• P203758B000G08
• P203758B000G09
• P203758B000G17
• P203758B000G51
• P203758B000G55
• P203758B000G91
• P203758B000L01

These references are useful for search coverage and quotation confirmation. However, different G or L versions should not be treated as automatically interchangeable without checking the old board label, connector layout, cabinet wiring, and elevator system configuration.

P1 Main PCB in the Control Cabinet

P203758B000G01 should be treated as a main control cabinet PCB, not a small interface board, display board, or button board.

This type of board may be connected with several important elevator control areas, such as:

• elevator operation control
• car and landing signal communication
• control cabinet input and output signals
• door system signal connection
• inspection or maintenance operation circuit
• related interface boards
• fault signal processing
• control power and cabinet wiring

Because it may work with multiple elevator control circuits, replacement should be confirmed more carefully than simple low-voltage spare parts.

Version Numbers Commonly Seen

For this model family, the suffix is very important.

A buyer may request P203758B000G01, while the old board on site may show another version such as G02, G03, G05, G08, G09, G17, G51, G55, G91, or L01.

These versions may look similar from the front, but the board revision, connector definition, software configuration, or system application may be different.

Before supply, the full printed model number should be checked from the old board. Do not confirm only by a partial number such as P203758B000.

Photos That Help Avoid Wrong Supply

For accurate confirmation, please provide:

• full front photo of the PCB
• full back photo of the PCB
• close-up photo of the P203758B000G01 marking
• connector area photo
• control cabinet installation photo
• nearby board numbers if visible
• elevator system information, especially LEHY-II if available
• fault description from the maintenance technician

If the old label is unclear, a complete control cabinet photo can help confirm whether the required item is P203758B000G01, another P203758 version, or a different Mitsubishi elevator main board.

Before the Board Goes Back Into Service

Do not select P203758B000G01 only by appearance.

Before installing a replacement board, technicians usually check the surrounding cabinet condition, including:

• control power supply
• wiring terminals
• connector oxidation
• communication cables
• related interface boards
• door control signal wiring
• signs of moisture, overheating, or short circuit
• previous repair marks on the old PCB

If the original motherboard was damaged by unstable power, wiring short circuit, water damage, or another cabinet fault, replacing only the main PCB may not fully solve the problem.

Supply Note for Overseas Buyers

For overseas spare parts supply, the safest method is to match the complete PCB number first, then compare connector layout and cabinet position.

Clear photos of the old board, connector side, and control cabinet installation position can reduce wrong supply and shorten confirmation time before shipment.