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Printed circuit for dash

73F100Shortbed

That's how we roll!
5,937
320
NJ
Ok so now that I'm trying to fix some little annoying issues with my truck I figure I might as well work on the dash lights. When I first got the truck they all worked fine. Then one side would light up while the other won't. It will go back and forth randomly to which side works. Someone spliced a wire in to light up the one side because the board looks damaged in a spot or two. Can this be fixed with some solder in the bad spots? All the gauges (well the ones that are hooked up) all work fine. Just the dash lights don't. I don't feel like spending $100 for a new circuit board from NPD. I looked in the junkyard when I was in OK but some were in worse shape than mine so I didn't bother grabbing one.
 

73F100Shortbed

That's how we roll!
5,937
320
NJ
I will have to pull it out tomorrow to see.
 

73F100Shortbed

That's how we roll!
5,937
320
NJ
Yes it is for the gauges. The power for the lights comes from the headlight switch.
 
i need to know the exact configuration of yours

It probably has to be from a 73-74 as they changed in mid 75 then changed again in 76

I went through this with the LED lighting tech with hipoparts.

The number is important

Did you take an pen eraser to the white corrosion on it ?

PCBoardCorroded2.jpg
 
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73F100Shortbed

That's how we roll!
5,937
320
NJ
No I didn't do the eraser thing Dennis because one of the copper strips is broken losing connection so I wanted to know if I could solder it. I will get the number later. I have to go take out the cluster.
 
No I didn't do the eraser thing, Dennis...
I will get the number later.
Ink eraser will work, but having been a Professional-Contact-Cleaner (! ;)
as part of my job, we used Union Switch & Signal erasers but a guy could
see where they half-assed-removed "Pink Pearl" off of each one. LOL :)

In their instructions it was ok to remove the contacts' metal with what
ever means necessary as long as the final cleaning was with a "Pink Pearl".
So what I'm trying to say is... a pencil eraser works too. ;)
(what-cha think Dennis? :)

----------------------

Yeah the number. This makes three of us that have extras but no-use
shipping-one that ain't got the same number without a lot of pouring
over it (electrically and physical shape) to see that it really will work. :/

Alvin in AZ
 

73F100Shortbed

That's how we roll!
5,937
320
NJ
I will try to get the number tomorrow. I spent quite a bit of time with the carb. today and it was too hot to mess with the dash.
 

73F100Shortbed

That's how we roll!
5,937
320
NJ
Hopefully I'll get to this tomorrow.
 

dakonthemountain

California Chapter member
I have always used white vinegar to clean copper electrical connections with a soft toothbrush. Works like a charm!

And the answer is yes, you can solder the copper strip to reconnect. Just be REAL careful about not getting to much heat or you will melt the plastic panel.

Good luck!
Dak
 

73F100Shortbed

That's how we roll!
5,937
320
NJ
Sounds good I will try that when I take it apart to get the numbers.
 

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