🚀 go-pugleaf

In article <830106236snz@longley.demon.co.uk> David Longley <David@longley.demon.co.uk> writes:

>   I have an IBM Thinkpad 750Cs, Dual Scan Colour notebook. Over the pst two
>   days it's started to show some odd symptoms in the lower half of the display
>   at boot up. It's corrected by a light tap to the side of the lid.

>   Symptom: Vertical lines appear on the lower half of the display, and they
>   seem to be the three primary colours. It's as if the convergence has drifted,
>   though I undrstand that this is not the way a dual scan works.

There is no such thing as convergence on an LCD display.  There are
row and column drivers, however, and if the timing is messed up or certain
logic signals do not get where they are supposed to go or get stuck, the
pixels may not be properly displayed or line up.  In your case, it sounds
like you have bad solder connections to one or more of these driver chips.
Going beyond this would just be wild speculation.  Taking it in for repair
is probably the only real option since getting inside those LCD displays
is a real treat.

--- sam