Andy wrote:
"Steve H" wrote in
message ...
"Geoff Winkless" ] wrote in
message . net...
I've just got hold of a newer unit (still Delco, same model number)
out of a '99 Vectra, which has the two-line matrix display.

I can't get the new unit to adjust to the smaller display - is
there a (not in the manual) way to set the display type? I opened
it up and there doesn't seem to be any jumper settings or dip
switches.

switch off, hold buttons 4&6 (i think) then switch on and hold
buttons until display changes from 1 setting to the other. If not
4&6 it might be 3 &5

OR 1 and 3

Andy

Thanks for the suggestions!

I'll just press random pairs of buttons and see what happens

But seriously, thanks, I'll try the suggested.

Geoff