Interphase Color Twinscope, Руководство по эксплуатации

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Troubleshooting Guide
If you are experiencing trouble with your Twinscope , please refer to the following checklist:
PROBLEM SOLUTION
Unit will not turn on. Check fuse, battery voltage and power connections.
Also, check for continuity through the in-line fuse holder.
Unit beeps but no picture appears Check your connections to the battery. Check for
on the screen. corrosion on the battery terminals or on the wiring
connections on a fuse block or buss bar.
Unit blows fuses. Wiring is reversed or there is excessive current from the
battery. The red wire should be “+” (positive) and have
continuity with pin #1 on the female side of the power
supply lead.
Loses picture at speed. Adjust the transducer angle or placement. Make sure that
the transducer is installed in the area which has the least
amount of water turbulence.
LCD darkens in sunlight after Overexposed to sunlight - provide shading for display.
prolonged use.
Screen is full of noise, or has dots Reduce your SENS setting and review the section on
running through it. interference. (see next page)
Bottom slopes up/down Adjust the transducer LEVEL adjustment in SETUP view.
Speed display is erratic. Check and clean the impeller wheel and the surrounding
area - be sure the impeller wheel spins freely.
Digital water depth not working. Increase your SENS, and check that you are in the proper
depth range.