Elevator LEHY-II energy feedback driver board Mitsubishi P203718B000G01 P203718B000G02 P203718B000G03 Elevator PCB

Observe the indicator light:

Power indication: Check whether the [POWER] LED is on. If it is not on, the power wiring may be incorrect or the DC load is too large. .

Error indication: [EPROR] LED flashes or is always on, indicating program syntax errors, parameter setting errors, or conductive foreign matter mixed in, etc. .

Self-test process:

BIOS self-test at startup, listen to the sound or see the error code, and refer to the manual to determine the type of fault .

Exclude other hardware:

Replace the memory bar, graphics card, etc. to confirm whether the fault is caused by other hardware .

Check the connection and clean:

Check whether the motherboard connection is loose, keep the motherboard clean, and pay attention to whether the heat dissipation is normal .

Through the above steps, you can preliminarily determine whether the Mitsubishi 

P203741B000G01 motherboard has a fault and take corresponding treatment measures.

Methods for further diagnosis of motherboard failure:

Check the power supply and indicator lights

Power indication: Confirm whether the [POWER] LED is on. If not, check the power connection and DC load. 12. Error indication: When the [EPROR] LED flashes or stays on, check the program syntax, parameter settings, and whether there is any conductive foreign matter mixed in. 12. Use diagnostic tools

Use professional diagnostic tools or software to read the fault code and refer to the manual to find the cause and solution of the fault. 2. Check the hardware connection

Confirm whether the motherboard connection is loose, and check the I/O terminal screws and connectors. 24. Check whether the grounding system meets the requirements to avoid interference. 23. Conduct road tests or simulation tests

Under safe conditions, conduct road tests or simulated operations to observe the performance of the motherboard in different states. 5. Consult professional maintenance

If you cannot solve the problem yourself, contact Mitsubishi after-sales or professional maintenance personnel in time. .

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