Lowrance HDS-5m Gen2 HDS 5m 7m Operation Manual - Page 96
Unit Care, Cleaning the Screen, Inspect the buttons, Debris in the keyboard contacts
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Specifications Unit Care Display • Cleaning the Screen - Warm water and soap will work fine. You can also use ammonia-type cleaners like Windex. Do not use any type of abrasive cleaners. They will remove the Anti-Reflection coating from the glass. Buttons • Inspect the buttons - Make sure that no buttons are stuck in the down position. If one is stuck, wiggle the button to free it back to the normal position. • Debris in the keyboard contacts - In case there is dirt or other debris covering the contacts inside the keypad, press down on the button in question and wiggle it to try to restore its function. Connectors • Clean the Connections - Corrosion or oxidation could occur on the power cable connector pins and fuse-holder. This can prevent sufficient power from flowing to the unit. Clean the connections to be sure. Sometimes the substance is clear and not easily seen. 94