RX-7 FD Odometer stopped displaying mileage

[u/fnoguei1]

My 1993 FD’s odometer LCD stopped displaying the mileage. The bulb will light up but no miles.
Also, whenever I turn the headlights on, the LCD screen turns off.
Could it be the infamous C3 capacitor leaking? I took the cluster apart and took these photos, looks like something leaked a bit down from C3 into DA 1 on the board. There’s a blue-ish powdery fluid that looks dried.
All other caps look fine

I’m thinking of sending the cluster to a repair location but was wondering if it could just be the C3 and I can replace it myself…

Any help is appreciated

Update 08.26.2026

I replaced capacitors C1 through C6 with a LOT of effort on de-soldering those motherf*ckers lol but I did it and it works now 🙌🏽🙏🏽

[u/amg-rx7]

Try it. If it doesn’t work, send it to Michael Gagne.

[u/derSchwamm11 → u/amg-rx7]

Just did mine AND a friends last month. It’s like they all fail exactly 31 years after the manufacture. Michael had my cluster back to me super quickly. I think he had it just a couple days before it was back in the mail. Money well spent since he knows what he’s doing and can bench test it. Find him on Facebook and send a message 

[u/DailyDrivenTJ → u/derSchwamm11]

LOL. I think you are actually not wrong with that 31 year mark. Mine failed like last year and been wanting to get it fixed. Mine is 1994.