problem with sat-nav head unit

hello i have a problem with my sat-nav screen its got lines running from top to bottom on it, every thing still works its just you cant make out some of the words this is getting worse, can anyone give me a clue on how this can be fixed. thank you:)

ROY C.

Same problem on the Punto one that i have. I don't know if we're talking about the same head unit but this one to load the CD's the front panel flips down.

Anyway, there is a ribbon cable going to the screen that will flex every time the front is opened /closed. It could possibly have a bad solder joint on one end, replacing that was the cure for a Pioneer I used too have.

hi its a blaubunked head unit you only open it up to change the sat-nav disc which i wont do often. thanks

ROY C.

Right, so I assume its a punto one then?

Have now opened up the front panel to investigate further. the problem is probably not related to the ribbon cables from the main unit to the front panel ( but they do still show signs of damage from even light use). There is another cable inside that attaches the screen onto the board for the front panel that is almost definitely the cause of the problem.

The Horizontal lines are dealt with by nice conductive rubber 'zebra' strips which don't seem to cause a problem. The vertical lines are dealt with in a different way.

the connector for vertical lines is, according to an LCD FAQ i was reading, bonded on by a combination of heat and pressure on a conductive paste.

This unfortunately will probably require a specialist tool to fix
:-(