Grounding issue started with the horn.....
There are several problems that can cause grief in these clusters.
1....Loose or broken harness connector pins. Repair them, replace, solder them to the board. On mine, I didn't use them, rather, soldered wire pigtails to the board traces, and used a pair of "Molex" style connectors instead
2...Bad instrument regulator
3...Bad contacts in the IVR socket. On my cluster, the brass fingers were not making contact with board traces. I soldered jumpers across
4...Bad connection at gauge studs. Loosen/ tighten the nuts several times, or better, install "real" nuts
Ground........The 67 has two boards. It is originally jumpered to the casting by mounting screws and grounded from the casting 'with luck' through the cluster to dash frame mounting screws
I had some other photos, cannot find them
What you see here is the black soldered to the board jumpers over to the second board, and "goes off" to a ground point
The IVR socket has been jumpered to the traces
The blue white I believe is 12V igntion power coming into the board from the new Molex plug
There are many threads on here, repairing the connector pins
http://www.forabodiesonly.com/mopar/showthread.php?t=234045
There are several problems that can cause grief in these clusters.
1....Loose or broken harness connector pins. Repair them, replace, solder them to the board. On mine, I didn't use them, rather, soldered wire pigtails to the board traces, and used a pair of "Molex" style connectors instead
2...Bad instrument regulator
3...Bad contacts in the IVR socket. On my cluster, the brass fingers were not making contact with board traces. I soldered jumpers across
4...Bad connection at gauge studs. Loosen/ tighten the nuts several times, or better, install "real" nuts
Ground........The 67 has two boards. It is originally jumpered to the casting by mounting screws and grounded from the casting 'with luck' through the cluster to dash frame mounting screws
I had some other photos, cannot find them
What you see here is the black soldered to the board jumpers over to the second board, and "goes off" to a ground point
The IVR socket has been jumpered to the traces
The blue white I believe is 12V igntion power coming into the board from the new Molex plug
There are many threads on here, repairing the connector pins
http://www.forabodiesonly.com/mopar/showthread.php?t=234045
