I/O Cards, Controller Modules & CNC/Industrial Board Repair Services

When input-output cards or controller modules fail, your machine stops responding. Signals drop, outputs dont trigger, and the production line stalls.

At Epoch Technical, as an ISO 9001:2015 certified company, we specialize in I/O cards repair, controller modules repair, CNC/industrial board repair at the component level. We repair what’s broken not just replace whats easy.

Why Choose Epoch Technical

Repairs performed in-house, in a static-protected electronics lab
Component-level diagnostics and rework (board layers, SMD rework, trace repair)
We reverse-engineer obsolete board designs for you
Fast quotes and transparent service of actual board faults

We handle the fault so you don’t handle delays.

What We Repair

I/O Cards

Digital Input / Output modules
Analog Input / Output modules
Feedback / encoder interface cards
Fieldbus communication cards (Ethernet/IP, Profibus, CAN, Modbus)

Controller Modules & CNC / Industrial Boards

CNC motherboard & motion controller PCB
Axis drive control boards
Servo interface cards
Embedded computer / operator panel boards
Power-trace, high-current boards, multi-layer PCBs

If the board is unresponsive, showing burnt marks, or communication doesn’t happen we repair it.

How I/O & Controller Boards Work

I/O and controller boards bridge the field devices (sensors, actuators) with the control system (PLC, CNC, Drive). They process signals, execute logic and carry high currents.

When one board fails:

Sensors stop being read
Outputs don’t fire
Communication bus fails
Machine logic breaks down

➡ We restore the hardware pathway board, layers, signal, and communication.

Common Board Failures We Fix

Boards fail to power on or show visible damage
I/O module shows module fault” on PLC display
Encoder signals missing or incorrect
Communication cards not linking to network
SMT parts burnt or lift-off traces on board layers
Multi-layer PCB via failures or inner layer shorts

We diagnose using high-resolution microscopes, trace mapping, SMD rework stations, and bus simulation equipment.

Our Repair Process

Board Evaluation

You send the board or module. We inspect, diagnose and report.

Transparent Quotation

We share what failed and cost estimate. No work starts without your consent.

Component-Level Repair

We rebuild the board: repair traces, replace failed components, reverse engineer if needed.

Functional Testing

We test under real signal conditions and check I/O responses, communication, and board stability.

Return & Reinstall

Your board is returned fully tested, ready for installation.

Choose Expertise. Choose Epoch Technical

A failed board stops machines we understand how production matters. At Epoch Technical, we communicate clearly, repair precisely, and provide results you can rely on.

If your I/O card, controller module, CNC board, or industrial PCB isn’t functioning tell us the details and well handle the rest.