Humminbird LCR 4000 Operation Manual page 26

Some additional things you should know about the LCR4000.
Some polarized glasses might affect your view of the LCR display. It could result in a
prism or rainbow effect. This condition can possibly be improved by a slight adjustment
in tilt.
If you get confused while in the manual mode, for instance, if you don't know where
the bottom is, then press the auto on/off button to turn on the automatic mode. The
LCR4000 will find the bottom by selecting the proper sensitivity level and depth scale.
You can then go back to the manual mode it desired
In order for your LCR to operate well at high speeds, you must have a properly
mounted transducer. Please read the transducer mounting procedure carefully.
The transducer for the LCR4000 is a l6 just like most standard Humminbird flasher
units. Other transducers, such as 32 , cannot be used.
Caring For Your LCR:
Since your Humminbird LCR is completely waterproof, it can be cleaned with soap and
water or hosed off after salt water use with no fear of damage to the unit or its
electronics. When cleaning the lens, it is suggested you use a chamois cloth and a non-
abrasive cleaner such as Windex. Do not wipe while dirt or other gritty material is on the
lens. Care should be exercised to avoid scratching the lens. Keep chemicals such
as bug repellent, ammonia or gasoline away from the LCR case and lens.
As with any electrical instrument, do not leave your LCR on the dash board or rear
window area of the car. The sun can create extremely high temperatures which can
damage the case and internal electrical components. During extended periods of non-
use, such as winter, you should store the LCR and other removable depth sounders in
the house or garage. This will help prolong the good appearance and operation of these
instruments.
USING THE LCR 4000
ADDITIONAL INFORMATION