Raymarine DSM250, Owner'S Handbook Manual

Page: 108 / 122

7-4 DSM250 Digital Sounder Module
➤
To perform a factory reset:
1. Press
MENU
.
2. Press the
SONAR SET UP
soft key to display the Sonar Set Up page.
3. Press and hold
MENU
for 5 seconds.
The
RESET TO DEFAULTS
soft key appears.
4. Press
RESET TO DEFAULTS .
New soft keys appear:
ARE YOU SURE? YES. NO
.
Pressing
NO
returns you to the Sonar Setup Menu.
Pressing
YES
causes the DSM250 to reset all settings to factory
default:
i. The power on the DSM250 cycles OFF and ON.
ii. The message
SONAR DATA UNAVAILABLE
appears.
iii. An audible alarm is sounded.
iv. The normal sonar image resumes scrolling across the display.
The reset is complete.
➤
To cancel the reset:
Before pressing
YES
as described in item 4 above, press any of the
following keys:
DISPLAY
,
MULTI
,
VRM/EBL
,
MARKS
,
RANGE
,
GAIN
, or
ALARMS
.
This action opens up a new menu according to the key pressed.
or
Press either the
ENTER
or
CLEAR
key. This action returns the
unit to the Sonar Set Up menu.
The factory default settings are listed in Section 4.4 .
7.3 Problem Solving
All Raymarine products are, prior to packing and shipping, sub-
jected to comprehensive test and quality assurance programs.
However, if this unit should develop a fault, please refer to the
following table to identify the most likely cause and the corrective
action required to restore normal operation.
If you still have a problem after referring to the table below, con-
tact your local dealer, national distributor or Raymarine Technical
Services Department for further advice. Always quote the product
serial numbers. The serial number is printed on the back of the
unit.
MENU
SONAR
SET UP¬
RESET TO
DEFAULTS