1970 Rally dash problems

[mick 70 superbee]

I was wandering if anyone could help me out? I have 1970 Coronet Superbee with a Rally dash, none of the gauges work, the lights work in the gauges but that is it. I looked at the wiring schematic on Moparts but I haven yet seen the one with my type of plug on the back by the circuit board. I keep seeing the ones with a round connector that the wires go into for the gauges to operate but mine has like a 5 pin flat connector that plugs into the back of it Not the round type. I put a painlesswiring harness in it, BIG MISTAKE. I need to find out what the pinout is on this connector and how to test the dash voltage regulator along with the circuit board, Any help would be greatly appreciated. Thanks!

 

[440+6]

I would say bad voltage limiter.
The five pins starting from drivers side are: 1) 12v for dash lights, 2) 12v for gauges, 3) from fuel sender, 4) from temp sender, 5) from oil sender.

The ground comes from the dash screws so if you pull the cluster out a bit to test it you will lose the ground, run a wire from a good ground to one of the screws on the cluster back (I use the screw that holds the clock or tach) then leave it there when you re install for a better ground.

To test volt limiter the bottom lug is is the one that feeds the gauges and should be 5 volts (fluctuating if you have an original type regulator) the center lug is the 12v power source and the top lug is the ground.

use the pic and see where everything goes

 

[mick 70 superbee]

Thank you! I think that will help me out alot

 

[mick 70 superbee]

Has anyone used the new style of circuit board in the Rally dash with the built in voltage reducer? Do you need to use a condenser with it like the old style