|Sticking Segments: One of the most common
reasons for returning a display for repair has been "sticking"
segments. It is an easily repaired problem, but it needs to
be done at the "factory". The drive coil(s) behind the segment(s) must
Water Damage:Perhaps the second most common reason for returning a unit for repair is damage caused be intrusion of water. The display housing is vented via two 1/8 diameter holes at the back and bottom of the display and improper storage of the display, say, by leaving the display on the mast during off-season with the mast horizontal and the display facing the ground. Water will under those circumstances accumulate within the housing, which in turn will corrode the mechanical parts of the display. This is also a repairable problem. The display must again be shipped back to "factory" and the display modules will have to be replaced.
Fading Digits:In time, from exposure to the sun, the display segments will lose some of the flourescent characteristic and no longer appear as readable compared to a new unit. This effects the red digits more than the yellow. This problem may take years of exposure to become noticable. It is also preventable by covering the display when it is not being used. If needed, the old display "decks" can be replaced with new ones. Again, this must be done at the "factory".
Lamp Failure(s):The display is illuminated for
night time operation by 16 each, small #7218 lampbulbs, which are
soldered to printed circuit boards just below the digits. Most likely,
they will last for
several years, but when they burn out they are replaceable. This could
be done at a repair facility of the customer's choice, but if the
display needs a general overhaul, again it is best to ship it back to
Lightning Damage:Damage caused by a lightning
strike near the boat may result in total failure of most or all of the
electronics in the display. This is most economically handled by
replacing both of the printed circuit boards within the display. Some
credit may be given for returning the old boards.
If possible, please, do not take out the individual circuit boards when returning a unit for repair. Ship the display back in the lexan housing for protection and this makes it possible to install the display when it is returned without handling the circuit boards in the field.
Visa or MasterCard is accepted for repairs.
Ship repairs to: MAYAPPLE COMPANY, 290 Turnip Patch Road SW, Meadows of Dan, Virginia 24120
For more information and pricing contact: