Intermittent Tachometer Cured!
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Elder User
Joined: Feb 2005
Posts: 526
Likes: 1
From: Spokane, WA
Intermittent Tachometer Cured!
20+ years of a tachometer that works when it wants to was cured this weekend with 1 hour of work. I can't take credit for figuring it out so here is to Eddiec1564! You are THE MAN!
I will add, my glue was still quite plyable (sp?). It was in 4 locations on the board (which I left attached to the tach) all around the tall green inductors (I think). I used a small curved pick to get the glue off the board and away from the legs of the component. I didn't clean the board afterwards, nor did I have any cold solder joints, just reinstalled and it has yet to fail.
Man I love a working tach! My dash is back to normal!!!!!
Kenny
Sounds like the problem I had on my tach. What I found was inside on the circut pc board of the Tach was some old yellow colored glue that turned brown and started conducting current. I cleaned off the browning yellow glue and resoldered some cold joints and that took care of that problem. Since then I fixed about 5 tachs for the same thing. Funny thing is Mitsubishi TV's of the late 80's/ early 90's had the same yellow glue that browns up and causes all types of problems...
Man I love a working tach! My dash is back to normal!!!!!
Kenny
Cargo Master
Joined: Mar 2007
Posts: 2,935
Likes: 34
From: Arcadia, Fla
Good to hear you got it fixed!! I am still seeing that yellow/bown glue in some newer electronics again. Don't they ever learn....
Festus ,rember those bad tuner connections of RCA chassis too?
Festus ,rember those bad tuner connections of RCA chassis too?
Methanoholic
Joined: Mar 2009
Posts: 6,442
Likes: 8
From: Maine (NorCal Native)
That's how I impressed my wifes folks the first time we met, pulled the back off, gave the connections a good wiggle and was instantly a genius!
Should of seen the look on their faces while I was pulling their expensive console apart!
We still laugh about that!
-Enjoy
fh : )_~
Should of seen the look on their faces while I was pulling their expensive console apart!
We still laugh about that!
-Enjoy
fh : )_~
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