Letters spelling out 'FAQ" made from assorted modular synthesizer components on a wall.

General Questions

What types of Eurorack modules, boutique electronic instruments and effects do you repair?

We repair a wide range of Eurorack modules including:

  • Analog and digital oscillators

  • Filters and VCAs

  • Sequencers and controllers

  • Effects modules

  • Power supplies and cases

  • Samplers and granular modules

  • DIY and boutique modules

  • Vintage and discontinued modules

  • Desktop effects modules

  • Desktop electronic instruments

We service both factory-built modules and many third-party clones.

Which manufacturers do you support?

We regularly service modules from manufacturers including:

Mutable Instruments, Intellijel, Make Noise, Erica Synths, ALM Busy Circuits, Xaoc Devices, Doepfer, Expert Sleepers, Noise Engineering, Tiptop Audio, Befaco, Bastl Instruments, Joranalogue, Endorphin.es, Rossum Electro-Music, Happy Nerding, and many others.

If your manufacturer is not listed, contact us — we may still be able to help.

Do you repair discontinued or out-of-production modules?

Yes. We specialize in supporting discontinued and legacy Eurorack modules, including many products no longer supported by the original manufacturer.

Do you repair Mutable Instruments modules and clones?

Yes. We have extensive experience repairing both original Mutable Instruments modules and many third-party clones.

Can you repair DIY modules?

Often, yes. Repairability depends on:

  • Build quality

  • PCB condition

  • Availability of documentation

  • Previous repair attempts

Please include build details and clear photos when requesting service for DIY modules.

Repair Process

How do I request a repair?

Contact us with:

  • Manufacturer and module name

  • Description of the issue

  • Photos if available

  • Any troubleshooting already performed

We will review the information and provide next steps.

What happens after I send my module?

Typical workflow:

  1. Module intake and inspection

  2. Diagnostic testing

  3. Repair estimate approval

  4. Repair and calibration

  5. Burn-in and functional testing

  6. Return shipment

Do you provide estimates before repair?

Yes. We can provide an estimate after evaluation whenever possible.

Some complex issues may require bench diagnostic time before a final quote can be provided.

What is your turnaround time?

Turnaround time varies depending on:

  • Complexity of the repair

  • Parts availability

  • Current service queue

Typical turnaround is approximately:

  • Minor repairs: 1–2 weeks

  • Complex repairs: 2–3 weeks

Expedited service may be available.

Common Problems

My module does not power on. What should I check first?

Before sending the module:

  • Verify power ribbon cable orientation. The red strip is -12 volts.

  • Test the power supply

  • Try another known-good power cable

  • Inspect for bent pins or damaged headers

  • Test in another case if possible

Incorrect ribbon cable orientation is a very common issue.

My module works intermittently. What causes this?

Common causes include:

  • Loose power connections

  • Cracked solder joints

  • Failing voltage regulators

  • Damaged potentiometers or jacks

  • Heat-related component failure

My digital module is frozen or not booting.

Possible causes include:

  • Firmware corruption

  • Power supply instability or insufficient current

  • Failed memory components

  • Clock or processor issues

Some modules may require firmware recovery or reprogramming which can require special software and hardware programmer.

Can power supply problems damage modules?

Yes. Common causes of damage include:

  • Reversed power cables

  • Faulty power supplies

  • Insufficient power capacity

  • Voltage spikes

  • Improper DIY case wiring

Power-related failures are among the most common Eurorack repair issues.

Shipping & Packaging

How should I package my module?

We recommend:

  • Anti-static bag

  • Bubble wrap

  • Sturdy cardboard box

  • Protection for knobs and switches

Do not ship modules loosely in padded envelopes.

Should I include patch cables or power cables?

No. Please send only the module unless instructed otherwise.

Do you accept international repairs?

Yes. We work with customers worldwide.

Customers are responsible for:

  • Shipping costs

  • Customs paperwork

  • Import/export fees when applicable

Technical Questions

Do repaired modules get calibrated?

Yes. Modules are tested and calibrated as needed following repair.

Calibration may include:

  • Oscillator tuning

  • Voltage scaling

  • Filter tracking

  • Output level adjustment

Do you replace worn potentiometers and jacks?

Yes. Mechanical wear items such as:

  • Pots

  • Jacks

  • Switches

  • Encoders

  • Buttons

can often be replaced during service.

Can you repair liquid-damaged modules?

Sometimes. Success depends on:

  • Type of liquid exposure

  • Corrosion severity

  • How quickly power was removed

Do not power on a liquid-damaged module before evaluation.

Do you perform firmware updates?

Yes, when applicable and supported by the manufacturer.

Business & Manufacturer Support

Do you provide repair support for manufacturers?

Yes. We work with boutique synthesizer manufacturers and retailers to provide:

  • Warranty repair support

  • International service partnerships

  • Final assembly and QC

  • Rework and diagnostics

Why use a US-based repair partner?

A US-based service partner can help manufacturers:

  • Reduce international shipping costs

  • Avoid customs delays

  • Improve turnaround times

  • Reduce support overhead

  • Improve customer satisfaction

Contact

How do I start a repair request?

Please contact us with:

  • Module manufacturer

  • Module model

  • Description of the issue

  • Photos if available

We’ll respond with the next steps for evaluation and service.