Beltronics Vector 990 Owner's Manual - Page 29

Troubleshooting Solutions for Common Problems If your unit is not operating properly, please refer to the outline below. Problem Unit not receiving power "Poor detection range" Erratic or frequent alerts sources Possible Cause Plug not properly inserted Corrective Procedure Reinsert plug and rotate Fuse in power cord is defective Lighter socket not clean and negatively grounded Fuse or electrical wiring for lighter socket defective Antenna/lens opening partially blocked Radar signals unable to pass through windshield High concentration of non-police X band Replace with 1 amp 250 Volt 3ag fuse (see page18) Consult your dealer or a professional mechanic Consult your dealer or a professional mechanic Reposition unit with unobstructed view of road ahead and behind. Determine whether your vehicle has a "heated windshield" known as Instaclear® or ElectriClear®, or is covered with a metallic sun screen. Use CTY mode or CTY ALL mode Review section in this manual on Performance Verification Partial or no display No Ka Band alerts Dim or dark mode engaged Check to see if Superwide Ka or AccuSweep™ have been turned off 27 Disengage dim or dark mode Engage Superwide Ka or AccuSweep™