Circuit Board Repair Service – Mazda RX7 FD3S

Circuit Board Repair Service – Mazda RX-7 FD3S (Cluster PCB)

Bring your RX-7 FD3S instrument cluster circuit board back to life with a professional repair service. Choose the service level that matches your issue — from common capacitor/diode failures to deeper fault finding and board-level repairs.

Typical symptoms (FD3S cluster PCB)

This service is ideal if you experience one or more of the following:

• Speedometer / tachometer / gauges behaving erratically (jumping, sticking, inaccurate readings)

• Intermittent operation (works sometimes, fails when warm/cold, or after bumps)

• Odometer / trip meter issues (not counting, intermittent counting, resets)

• Needle “flutter” or unstable needle movement

• Warning lights / backlighting problems (flickering, dim, partial failure)

• Cluster dead / no response or random resets

• After a long storage period: cluster acts up due to aged components

Option 1 — Basic Repair (200€)

Inspection + replacement of common failure parts

• Diagnostic check of the PCB

• Replacement of faulty electrolytic capacitors

• Replacement of faulty Zener (Z) diodes

• Functional verification after repair (as far as possible on the bench)

Best for: Typical age-related issues caused by leaking/weak capacitors and failed Z-diodes.

Option 2 — Advanced Repair (350€)

Deeper diagnostics + board-level repair (if Option 1 is not sufficient)
If the basic repair does not fully resolve the problem, this option includes extended troubleshooting and additional repair work:

• Thorough fault isolation and deeper analysis

• Reflow / re-soldering to address potential cold solder joints

• Repair of burnt or damaged traces

• Replacement of defective components (where available)

Best for: Intermittent faults, multiple symptoms, prior repair attempts, or damage beyond capacitors/diodes.

Important Notes (recommended to include)

• This is a repair service, not a new part. You send in your circuit board/ gauge cluster and we inform you about the repair progress. Then you buy the relevant service and you receive your repaired board back.

• Repairs depend on the condition of the board. Severe corrosion, liquid damage, or previous improper repairs may limit repairability.

• Replacement parts are subject to availability (especially for uncommon ICs).

• Shipping costs are typically not included unless stated otherwise.