LG Electronics M2900S, M3800S manual Screen image looks abnormal

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Troubleshooting

The screen image looks abnormal.

Is the screen position wrong?

Do thin lines appear on the background screen?

Horizontal noise appears or the characters look blurred.

The screen is displayed abnormally.

D-Sub analog signal – Press the “AUTO” button in the remote control to automatically select the optimal screen status that fits into the current mode. If adjustment is not satisfactory, use the Position OSD menu.

See if the video card resolution and frequency are supported by the product. If the frequency is out of range, set to the recommended resolution in the Control Panel – Display – Setting menu.

D-Sub analog signal – Press the “AUTO” button in the remote control to automatically select an optimal screen status that fits into the current mode. If adjustment is not satisfactory, use the Clock OSD menu.

D-Sub analog signal – Press the “AUTO” button in the remote control to automatically select an optimal screen status that fits into the current mode. If adjustment is not satisfactory, use the Phase OSD menu.

The proper input signal is not connected to the signal port. Connect the signal cable that matches with the source input signal.

After-image appears on the product.

After-image appears when the product is turned off.

If you use a fixed image for a long time, the pixels may be damaged quickly. Use the screen-saver function.

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Contents M2900S M3800S Using the Remote Control Name of the Remote Control ButtonsInserting batteries into remote control Name and Function of the Parts Rear ViewConnecting to External Devices Connect the power cordTurn on power by pressing the power button on the product How to connect to two computersTurn on the PC Connecting to External Devices Vesa Fdmi wall MountingScreen Adjustment options User MenusIR Receiver OSD Menu OSDOn Screen DisplayHow to adjust the OSD On Screen Display screen How to adjust the screen automaticallyUse the remote control to adjust the OSD screen Adjusting Screen Color C T U R ERed / Green / Blue Adjusting Screen size ResolutionFull ModeNormal ZoomAdjusting the timer function Clock On/ Off TimeFunction Set ID Adjusting OSD imageFactory Reset PositionTroubleshooting No image is displayedScreen image looks abnormal Screen color is abnormal LCD Panel SpecificationsPower NetInches 96.89 cm TFT Thin Film Transistor Video Signal Input Connector EnvironmentalConditions Power Indicator RS-232CControlling the Multiple Product RS-232C Distributor- Not includedRS-232CControlling the Multiple Product Transmission / Receiving Protocol PowerCommand k Source Command lBrightnessCommand m ContrastCommand nColor Temperature Command p Resolution Command qZoom Command r Auto adjust Command sLead code Configuration of frameOutput waveform Bit description0FH CodeHexa FunctionNote