- Verify that your terminal is properly connected (mains cable).
- Press « menu ticket ».
- Press 3 « set up terminal ».
- Press 2 « contraste ».
- For less contrast, press several times on the
key at the extreme left (under the screen) until you obtain the required level of contrast. - For more contrast, press several times on the
key at the extreme right (under the screen) until you obtain the required level of contrast. - When you reach the required level of contrast, confirm with « ok ».
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