Hi all I have an issue with no dash lights was like this when I bought car .
All Parker's tail lights etc work fine warning lights gauges work fine .
Just no dash lights ?
So far I have changed harness while I was changing engine also changed light switch and have changed cluster and replaced every bulb with new bulbs
Any ideas would be great I am out off them
It must be earthed as other lights are working
Are these negative switching ?

May be coroded plug or internally cracked wire into daah plug. Also could be broken teack in the curcuit board on back of instruments.
Can you try 12v to the cuirct board tracking? I had issues with my old coupe. I jambed a wire from the first light to the 2nd bulb as the track was damaged.

Just thought it odd I have replaced all still the same was going to try jump wire off switch to pin on board see if it works

You say its not the earth
I would have thought earth or broken wire/connection causing intermittant issue

Well I just though if earth other wearing light etc wouldn't work

Warning lights and gauges are not earthed via dash.

When checking the dash illumination lights, cluster must be earthed by bolting to the dash frame.

For AUS-spec 1200s, twist the light switch bulb. This bright/dim function may be broken.

Also see http://datsun1200.com/modules/mediawi ... oubleshooting_Dash_Lights