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MAINTENANCE AND WARRANTY
WARRANTY
7. M y unit loses pow er at high speeds.
160
Your
has over-voltage protection that turns the unit off w hen input
voltage exceeds 20 VDC. Some outboard motors do not effectively regulate
the pow er output of the engine's alternator and can produce voltage in
excess of 20 volts w hen running at high RPM s. The
voltage in the low er left corner of the display w hen it exceeds 15 VDC. Use
this readout to determine if the voltage exceeds 20 VDC.
8. The screen begins to fade out. Images are not as sharp as normal.
Check the input voltage. The
if it is greater than 16 or less than 10 VDC. The voltage readout w ill appear
in the bottom left corner of the screen.
9. The display show s many black dots at high speeds and high
sensitivity settings.
You are seeing noise or interference caused by one of several sources.
Noise can be caused by other electronic devices. Turn off any nearby
electronics and see if the problem goes aw ay. Noise can also be caused by
the engine. If engine noise is causing the interference, the problem w ill
intensify at higher RPM s. Increase the engine speed w ith the boat
stationary to isolate this cause. Propeller cavitation can appear as noise on-
screen. If the transducer is mounted too close to the propeller, the
turbulence generated can interfere w ith the sonar signal. Ensure that the
transducer is mounted at least 15" (38cm) from the prop.
10. The screen does not display a full fish arch.
Check the running angle of the transducer. If the running angle is too
great, a full fish arch may not appear. Reduce the running angle of the
transducer. Several incremental adjustments may be necessary.
TECHSONIC INDUSTRIES,
WARRANTY
First year repairs (from original date of purchase) on your
free. This does not include physical damage to the unit or its accessory
items. Any modification or attempt to repair the original equipment or
24
24
160
w ill display the current voltage on-screen
INC.
160
displays input
ONE YEAR FULL
160
are absolutely
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