E.F. Johnson Company 53SL ES Series, Руководство по эксплуатации

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4-12 53SL ES Series Mobile Radio Operating Manual April 2009
Basic Operation Section 4 - General Operation
4 Repeat this procedure until the Control Head is completely clean.
4.1.12 Radio Service
If “UNPROGRAMD” is displayed, the cause can be any of the following:
• An unprogrammed channel is selected. Select a programmed channel.
• The selected channel is programmed for an option that is not installed or an error in
programming was detected. Contact your system operator for service.
If no characters or all characters appear in the display, the viewing angle may be
improperly adjusted. Refer to Section 4.1.4 for more information. If some other problem is
occurring, turn power OFF and then ON again to reset the control logic. Also make sure
that the controls are properly set and that the power, external speaker, and accessory cables
(if used) are securely plugged into the back of the radio.
If the radio is completely inoperative, check the power cable fuse that is usually located
near the vehicle battery. If it is blown, remedy the cause if possible and replace it with the
same type (15A). If the radio still does not operate properly, return it to your system
operator for service.
Note There are no user-serviceable components in the radio. Altering internal adjustments can
cause illegal emissions, void the warranty, and result in improper operation that can
seriously damage the radio.