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mygmctruck1 02-16-2019 10:09 PM

Test dash cluster
 
How can I test dash cluster lights out side of dash.

LockDoc 02-17-2019 01:11 PM

Re: Test dash cluster
 
Quote:

Originally Posted by mygmctruck1 (Post 8467724)
How can I test dash cluster lights out side of dash.


You could build one of these.

http://67-72chevytrucks.com/vboard/s...d.php?t=732873

Any small 12 volt DC adapter will work.

LockDoc

mygmctruck1 02-17-2019 04:01 PM

Re: Test dash cluster
 
Quote:

Originally Posted by LockDoc (Post 8468052)
You could build one of these.

http://67-72chevytrucks.com/vboard/s...d.php?t=732873

Any small 12 volt DC adapter will work.

LockDoc

Actualy I want to be sure the printed circuit board works

Mike C 02-18-2019 08:45 AM

Re: Test dash cluster
 
Just check continuity from one end of a circuit to the other with an Ohm meter if all you are doing is verifying the printed circuit is good.

bill3rail 02-18-2019 09:16 PM

Re: Test dash cluster
 
Get a dash plug and plug it in to the back, feed +12Vdc to the proper wires and it should light up.
You can feed the power directly into the circuit board, but having the plug with stripped wires is easier.

Bill

P.S. there are wiring diagrams all around here to see where power goes in.

Sparky dave 02-18-2019 10:29 PM

Re: Test dash cluster
 
You can find out which wire is positive and negative by just looking on these. Look for the dash light bulbs on the circuit board and you can follow the tracks on the circuit board all the bulb positives join together and go to a wire and all the negatives go together and become a black wire. I'm pretty sure the dash positive wire is pink but check first. Then touch the wires to your car battery or another 12 v battery


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