2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

S5 Clock/Intrument Cluster Mod Question

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Old Sep 9, 2010 | 12:41 PM
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S5 Clock/Intrument Cluster Mod Question

I'm attempting to remove my clock from my instrument cluster. I'm going to change it to an A/F guage. Anyways my question is about removing the clock from the cluster.

Here is the instrument cluster taken apart (for reference). If you have ever fixed the cold solder in here then this should be familiar.

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Here is my question:

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If I do this to my board will the warning lights still operate normally? They appear to be seperate other than being attached to the bottom board. Thought someone might have some insight.
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Old Sep 9, 2010 | 01:39 PM
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From: tulsa,ok.
There are four wires that go to the clock. Not sure why it requires two straps to do it but there is a total of four wires connected to the clock. They are Black, L/R, L/B and R/B. These wires first go into the plug that fastens to the back of the idiot light unit and these four wires probably need to be cut and taped off before they run into the back of the plug so as to not ground out against anything for some of them (as in three of them) will have voltage on them.
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Old Sep 9, 2010 | 02:26 PM
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Thanks Satch. I figured the 4 wires would be 12v, ground, acc, and illumination.

I answered my own question (cut the board apart, desoldered the 4 wires), and just metered out an acc and ground. It's coming along pretty good. I might do a write up when I'm finished.

Here are some pictures of my progress so far.

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Old Sep 9, 2010 | 02:28 PM
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Old Sep 9, 2010 | 03:41 PM
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Update: Killed my digital meter, ordered 2 more. It looked good before I shorted it out, so I purchased a spare to use for a voltage meter.

O'well it'll give me a few days to install the LC-1.

Updates to come............
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Old Sep 9, 2010 | 03:44 PM
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From: Behind a workbench, repairing FC Electronics.
Nice install... Yeah, the clock is independent and its all a single layer board.
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Old Sep 10, 2010 | 11:42 AM
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Originally Posted by Pele
Nice install... Yeah, the clock is independent and its all a single layer board.
Thanks. I'm sort of excited, haven't seen one of these in a 7 yet. I saw where someone did the same type of mod to an STI.
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Old Sep 10, 2010 | 01:46 PM
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From: Behind a workbench, repairing FC Electronics.
^ I've seen it before:

https://www.rx7club.com/interior-exterior-audio-26/fc-write-up-replacing-stock-clock-something-useful-803594/
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Old Sep 10, 2010 | 02:37 PM
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hey that's cool, well there goes a how too.
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Old Sep 10, 2010 | 10:45 PM
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From: seattle
quick jack.
Hey pele are you repairing clocks now?

we now return the this tread alreading in progress.
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Old Sep 11, 2010 | 11:26 AM
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From: Behind a workbench, repairing FC Electronics.
^

Yes. PM plz.
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Old Sep 16, 2010 | 01:30 AM
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Okay here is the finished project. Yes I'm aware that I need a new idiot surround, and it's not fuzzy like it looks, it is hard to get a clear picture.

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Old Sep 16, 2010 | 02:00 PM
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That looks great!
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