I have one more question about the ST60 instruments on my just purchased (used) boat:
At night, when the backlight is on, this keeps flickering. The light goes off for some milliseconds and comes back again. This happens in irregular intervals, may be once a second or so.
The former owner of the boat said he thinks this is due to the pump motor
which is driven by the Raymarine
system and consumes quite some power. So each time the pump goes on the voltage goes down (because the supply line from the battery
is quite long) and the light goes off. If so there must be some capacitance broken or so? Even though a second supply cable has been installed he said, the problem did not disappear.
Has somebody experience with this effect? What is the root cause?