UniOP eTOP03-0046 Display Module

UniOP eTOP03‑0046 is a compact 3.8″ monochrome graphic touch‑screen operator interface with a 320×240 pixel resolution and 512 KB user memory, designed for PLC/PC integration via serial or AUX ports. Common failure points in this class of HMI panels include power supply voltage drop, backlight driver degradation, touchscreen controller faults, and connector corrosion on the PLC/PC port. First‑check diagnostics: verify the input voltage (±12 VDC) with a multimeter, inspect the LCD backlight LED current and any visible burn marks, test the touch controller by cycling through calibration routines, and review any error codes displayed or logged in the connected PLC.[oss-gpt-20b] Post Comment

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