Optimus 120-2154 - Manual (Page 23)

High-Power In-Dash AM/FM Stereo CD Player
(120-2154/55) Care and Maintenance Faxback Doc. # 48533
This document contains instructions for both Cat. No. 120-2154 and
120-2155 stereos. (You can find the Cat. No. of your model on the top
of the stereo.) 120-2154 has a LOUD button while 120-2155 has an FSM
button. Unless otherwise noted, these are the primary differences
between the two units listed.
Your Optimus High-Power In-Dash AM/FM Stereo CD Player is an example of
superior design and craftsmanship. The following suggestions will help
you care for your stereo so you can enjoy it for years.
Keep the stereo dry. If it gets wet, wipe it dry immediately. Liquids
might contain minerals that can corrode the electronic circuits.
Keep the stereo away from dust and dirt, which can cause premature wear
of parts.
Handle the stereo gently and carefully. Dropping it can damage circuit
boards and cases and can cause the stereo to work improperly.
Wipe the stereo with a damp cloth occasionally to keep it looking new.
Do not use harsh chemicals, cleaning solvents, or strong detergents to
clean the stereo.
Modifying or tampering with the stereo's internal components can cause a
malfunction, invalidating your stereo's warranty and voiding your FCC
authorization to operate it. If your stereo is not performing as it
should, take it to your local RadioShack store for assistance.
THE FCC WANTS YOU TO KNOW
Your stereo might cause TV or radio interference even when it is operating
properly. To determine whether your stereo is causing the interference,
turn off your stereo. If the interference goes away, your stereo is
causing it. Try to eliminate the interference by:
Moving your stereo away from the receiver.
Contacting your local RadioShack store for help.
If you cannot eliminate the interference, the FCC requires that you stop
using your stereo.