At 11:14 AM 9/6/2009, Dave Mcneely wrote:
>on my '91 Vanagon GL Campmobile works, but the paint behind the numbers
>that makes them contrast is worn partially away.  So, I can see the
>numbers, even see them change, but cannot read them.  Any help other
>than putting in a new clock?  If not, do clocks from other VWs work, or
>is this thing vanagon specific?

That actually sounds like either a drive or contact problem, a bad
polarizer or conceivably (?) a cracked LCD.
 From the description I'd bet on the polarizing screen.  I think they
can fail selectively if the wrong liquid gets to the edges.  I can't
remember whether it's glued on or separate.  A separate one could
come from another clock or perhaps be made from a scrap of polarizing
film or maybe a sunglass lens ironed flat(tish).

There's at least one other VW with an interchangeable clock but green
illumination (Jetta? Golf? -- somebody here knows).

The clock will do either 12hr or 24hr display, in case you want to
change it while it's out.

Yours,
David