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Mux 31 Error Scorpion 4


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#1 Twostroker

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Posted 10 September 2017 - 06:32 PM

Hi I just got this machine and it had this mux31 error coming up now and again. I've changed all the faulty bulbs and some that were replaced are now lighting up brighter than the sun! I don't really want it on they are that bright.

There's a sticker on the mpu on one of the chips saying lighting unit replaced.

Any ideas what the problem is or anything I can check? Seemed to be working ok in all other areas.

#2 Twostroker

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Posted 12 September 2017 - 09:32 PM

Fitted a new mpu and this cured the problems. All the lamps seem to flash better too.
I did get a trace 92 alarm briefly but seems to have sorted it's self out once it's been on and rebooted a few times.
Pretty chuffed as this is my first mpu change!

I'm gonna try and repair the faulty mpu for future use. It does have some local corrosion but looks not to bad. I've ordered a new 3.6v battery and the transistor marked at point TR51, also may need to repair(or wire) one track too. Im learning this as I go so love to hear if anyone's got any advice!




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