Raymarine L1250D, Owner'S Handbook Manual

Page: 211 / 246

Chapter 9: Maintenance and Problem Solving 9-5
Sounde
r Mo
dule
Re
set
Sounder Module Reset
There are two Sounder Module resets available:
• Power-On Reset. When you turn the DSM250 off and on again, all previous
settings are retained except for those listed in the following table, which are
reset to the factory default:
.
• Factory Reset. This resets all DSM250 values to their original factory settings.
WARNING:
The factory reset clears the sonar depth offset and speed and temperature
calibrations.
➤
To perform a sounder module (sonar) factory reset:
1. Press
MENU
on the display unit.
2. Press the
SONAR SET UP
soft key to display the Sonar Set Up page.
3. Press and hold
MENU
for 5 seconds.
4. The
RESET TO DEFAULTS
soft key appears.
5. 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 follow-
ing 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.
Table 9-2: Sounder Module Power On Default Settings
Item Power-on Setting
Range Shift 0 feet
Manual Scroll Speed 100%
MENU
SONAR
SET UP¬
RESET TO
DEFAULTS
81213_1.book Page 5 Monday, March 17, 2003 1:14 PM