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Note On Lcd Panel; Maintenance; Cleaning; Fuse Replacement - Sony NAV-U NV-U52 Quick Start Manual

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Note on LCD panel

Some stationary blue, red or green dots may
appear on the monitor. These are called "bright
spots," and can happen with any LCD. The LCD
panel is precision-manufactured with more than
99.99 % of its segments functional. However, it
is possible that a small percentage (typically 0.01
%) of the segments may not light up properly.
This will not, however, interfere with your



• Clean the surface of the suction cup with a soft,
wet lint-free cloth if it becomes dirty and
attachment strength weakens.
Be sure to dry the suction cup before
• Clean the display window with a commercially
available cleaning cloth.
If the suction cup leaves a trace on the windscreen,
wipe with water.

Fuse replacement

When replacing the fuse in the car battery
adapter, be sure to use one matching the
amperage rating stated on the original fuse (2.5
A). If the fuse blows, check the power
connection and replace the fuse. If the fuse blows
again after replacement, there may be an internal
malfunction. In such a case, consult your nearest
Sony dealer.
Never use a fuse with an amperage rating
exceeding the one supplied with the unit as this
could damage the unit.

Notes on unit disposal

Remove the built-in lithium-ion battery when
disposing of the unit, and return the battery to a
recycling location.
The procedure for removing the battery is
explained below.
Never disassemble the unit except when disposing of
Press the RESET button to turn off the
Remove the 2 rubber plugs on the
underside of the unit, then remove the
2 screws using a screwdriver.
Detach the claws with a sharpened
object, such as a flat headed driver,
then remove the rear cover.


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