Lohja Corp. MD320.256-71E LCD board

The MD320.256‑71E is a 4.8” 320×256 pixel LCD readout board used in Lohja industrial control panels and injection molding machines. Common failure modes for this model include burnt or degraded EL pixels due to over‑voltage, broken driver ICs (often the P0000200301 controller), and loose solder joints on the power/logic connectors. Initial diagnostics should verify that the board receives its specified supply voltage (typically 12 V DC with a regulated 5 V line for logic) and check for any visible burn marks or cracked traces; then confirm proper communication from the host controller by monitoring the data‑line signals or error codes in the panel’s diagnostic log.[oss-gpt-20b] Post Comment

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