Thanks guys.

Since the screen has the lines in both sounder and map mode I suspect it
may, in fact, be in the connector. My boat is a small Whaler so snaking the
wires is not an issue. It was an easy install.

Guess I'll probably send it in to Lowrance for the repair work. I'll have
to review the paperwork but as I remember they have a fixed charge to repair
the unit regardless of problem. Wonder if they have anything on hand to
repair a six year old unit.

If Lowrance is unable to resolve the issue I'll probably replace it with a
WAAS GPS Map and a stand alone sounder. It would be nice to use the
existing transducer but that may not work out. The screen is small so split
screen operation is not wonderful. If I had my druthers I'd have two units
so I can have a good look beneath the boat while using the map.

Thanks again.

Butch
"Calif Bill" wrote in message
.net...
Probably some corrosion or the contacts getting week that connect the
screen
to the electronics. If too much for the flat rate, migh try taking the
unit
apart and reseating the screen. Normally it is a silicon pad contact.
The
other issue is how easy to change the transducer. Bottom mounted or
transom
mounted. If a real pain to change and you are happy with the Lowrence,
send
the unit back for service.
Bill

"Butch Davis" wrote in message
.net...
Yesterday when heading out to catch some fish the combo unit on the boat
showed a problem. The display had several narrow vertical white lines
across it. Although the lines were not helpful they really did not
interfere with reading the display. As the day warmed a few lines went
away
but most remained after about six hours of ON time.

The unit is a 1999 Lowrance with a black and white display.

I fear it may be time for a replacement but would like to have your
views.
I could send it back to Lowrance for the flat rate repair but am not sure
the unit is worth the cost at this point. Perhaps I'm really just
looking
for an excuse to buy a new unit???

Thanks,
Butch