Re: Intermittent Tachometer 1994 9000 Aero - Saab 9000 Bulletin Board - Saabnet.com
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I performed all diagnostics from the trace side of the board. I started with the power and ground pins and checked for resistance between that and whichever component it was connected to by a trace on the board. I checked every two solder joints on the board connected by a trace. I assumed that if one of the two joints was cracked, I would measure resistance when doing this. I used a 22W pencil tip iron at 700 degrees Fahrenheit, bought from Amazon. I think yours should work fine! I found that any solder joints connected to ground may take a while to melt, just because of all the extra traces that can dissipate heat.
->Posting last edited on Mon, 28 Aug 2023 11:55:38.
Posts in this Thread:
- Intermittent Tachometer 1994 9000 Aero, PioneerRT909 , Wed, 23 Aug 2023 13:47:59
- Re: Intermittent Tachometer 1994 9000 Aero, PioneerRT909 , Sun, 27 Aug 2023 09:10:181
- Re: Intermittent Tachometer 1994 9000 Aero, Calvin, Sat, 26 Aug 2023 07:44:20
- Intermittent Tachometer also on my1993 9000 CSE, RandyNJ, Thu, 24 Aug 2023 13:06:28
- Re: Intermittent Tachometer 1994 9000 Aero, Santo , Thu, 24 Aug 2023 09:45:55
- Re: Intermittent Tachometer 1994 9000 Aero, Saabina , Wed, 23 Aug 2023 15:52:331
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