B1700 dash lights & oil gauge not working

[Brewer]

So after my little tumble she's running well but I seem to have lost most of my dash lights and the temp gauge.

The only dash light working is the glow plug indicator. I don't have the battery, oil pressure or hazard indicators, and the temp gauge stays at min. I removed the cluster, gave everything a bit of a clean (there was some corrosion to the multiconnector, but I cleaned that, and they were all working immediately before the tumble anyway).

All 4 fuses are good, and according the manual, none of them actually serve that stuff anyway.

Any ideas? Anyone have a wiring schematic?

 

[Brewer]

Actually I think I may have figured this out - at the back of the instrument cluster there's a membrane with printed circuits. Looks like some of the tracks are corroded where the membrane folds in to make contact with the multi connector.

I'll try and find some printed circuit repair paint and see if that fixes it.