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Image flicker usually only occurs with digital monitors if an incorrect screen refresh rate is set.
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For computers that are running with a Windows operating system, Windows offers its own troubleshooting which can help you immediately.
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Sometimes it is enough to reinstall or update the driver so that everything works again.
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This will tell you if your memory card is faulty.
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This could be due to a too low refresh rate (Hertz).
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The setting options differ depending on the product.
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If your product is being used as an external player please check if the connection cable is properly plugged in.
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If you have no sound or the volume is too low from the connected speakers or headphones?
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Does the power outlet, you have connected your products power lead to, work?
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Windows offers Troubleshooting app for sound issues.
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If the spots always remain in the same place even when the picture changes it will be pixel errors.
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First, attach your device to a different power outlet and see if this results in the fuse tripping.
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In this case, a residual current discharge (power supply reset) can help.
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Unfortunately, this behavior can have many causes.
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If your memory card is no longer recognized, it needs to be repaired or replaced.
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Check the primary side power supply and, if present, the on / off switch of the power supply.
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Please check the power supply first.
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The following steps may help if your device does not turn off.
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There may be a cable break, one of the most common signs of wear on electrical equipment.
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Hard drives contain mechanical components, such as fast rotating metal plates and moving writing and reading heads which can cause noises such as buzzing, creaking, clicking and clunking during normal operation.
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