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Temp gauge is a yo-yo and no vent control 200 1986

posted by  Don Foster on  Wed Jun 26 13:59 CST 2002
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last visit: Sun Oct 5 11:53 CST 2014
[RELATED]

I removed the temperature compensating board for the pictures.

The temp compensating board attaches to the main cluster PCB by four pins. I presume these are power, ground, signal in, signal out.

I've repaired several boards by resoldering the boards and cleaning and tightening the connectors (where it grips the pins).

But I've also repaired several other boards by replacing the integrated circuit and the transistor. I bought a bag of the ICs on eBay for a few bucks, so have a lifetime supply. However, in the past, I sent several of these ICs to another BB'er who was unsuccessful with his repair. So a bad IC is not always the reason for failure. (Even so, it only cost him $0 -- he had no reason to complain).

Others on the BB have described a means to bypass the temp compensating board. I've not tried this.
--
Don Foster (near Cape Cod, MA)






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