Industrial Circuit Board & PCB Repair — Component-Level
We repair industrial circuit boards at the component level — not board swaps. Failed capacitors, blown IGBT drivers, burned traces, corrupted firmware. We find the root cause and fix it, preserving your original configuration and eliminating costly lead times.
Types of Industrial Circuit Boards We Repair
Component-level repair across all major industrial board categories — from simple I/O cards to complex multi-layer drive control boards.
Power Supply Boards
SMPS and linear power supply boards for PLCs, HMIs, and drive systems. Common failures include failed MOSFETs, shorted filter capacitors, and blown fuse traces.
Motor Control Boards
Control and gate driver boards for AC and DC motor drives. Includes IGBT gate drivers, current sense amplifiers, and protection circuit components.
Logic / CPU Boards
Processor and logic boards for PLCs, CNCs, and industrial controllers. Component-level repair of microprocessors, memory ICs, and oscillator circuits.
I/O Interface Boards
Digital and analog I/O modules, signal conditioning cards, and fieldbus interface boards. Repair of optoisolators, DAC/ADC converters, and relay drivers.
Drive Control Boards
Regulator and control boards inside VFDs, servo drives, and DC drives. Handles speed reference, feedback, and protection logic — critical to drive operation.
Communication Boards
EtherNet/IP, Profibus, DeviceNet, and serial communication cards. Repair of transceiver ICs, termination networks, and protocol controller chips.
Display & HMI Boards
Backlight driver boards, touch controller PCBs, and display interface cards for industrial HMI panels. Repair of LED driver ICs and display timing controllers.
Safety Relay Boards
Safety-rated relay modules and monitoring boards for E-stop circuits, light curtains, and safety door interlock systems. Repair and recertification support.
Boards From All Major Manufacturers
We repair circuit boards from every major industrial automation brand — including obsolete and discontinued boards no longer available from the OEM.
Common PCB Failures We Repair
Industrial boards fail in predictable ways. Component-level diagnosis pinpoints the exact failure so we replace only what's needed.
Blown Fuses & Failed Capacitors
Electrolytic capacitors degrade over time from heat cycling, causing bulging, venting, or leakage. This is the most common failure mode on boards over 7 years old. We replace individual capacitors with rated equivalents — not the entire board.
Failed IGBT & Transistor Gate Drivers
Gate driver ICs fail from overvoltage transients, short circuits, and thermal runaway events. Symptoms include drive faults on startup, overcurrent trips, or complete loss of output. We replace the specific driver IC and inspect surrounding gate resistors.
Burned Traces & Solder Joint Failures
High current paths and vibration cause trace burns and cold solder joints. We use microsection analysis, UV dye penetrant, and X-ray inspection to locate hidden trace damage, then rework or re-route affected areas under 40x magnification.
Failed Op-Amps & Signal Amplifiers
Analog signal chain failures — failed current sense amplifiers, instrumentation amps, and comparator ICs — cause erratic speed control, feedback errors, or nuisance faults. We bench-test each amplifier stage to isolate the failed device.
Corrupted EEPROM & Firmware
EEPROMs and flash memory devices can corrupt from power surges or battery-backed RAM failures. We read, back up, and restore firmware using device programmer equipment where possible. Original configuration parameters are preserved.
Power Supply Section Failure
Switching regulator failures, shorted rectifier diodes, and failed bulk filter capacitors starve downstream logic from stable voltage rails. We trace power supply rails under load to identify the root cause before replacing components.
Our PCB Repair Process
A disciplined 5-step process — every board is bench-tested before it ships back to you
Receive & Log
Your board is logged into our system, photographed, and assigned a repair ticket. You receive confirmation with an estimated timeline within one business day.
Visual & Component Inspection
Under magnification, we inspect for burned components, bulging capacitors, cracked ICs, lifted pads, and contamination. Incoming photos are taken at this stage.
Circuit-Level Diagnosis
Using oscilloscopes, ESR meters, and in-circuit testers, we trace faults to the specific failed component — not just the board section. Root cause is documented before any parts are ordered.
Repair & Component Replace
Failed components are replaced with parts from authorized distributors — Digi-Key, Mouser, Arrow. BGA rework performed under reflow oven. Trace repairs under 40x stereo microscope.
Burn-In Test & QA
Repaired boards run a minimum 4-hour burn-in under load conditions to verify stability. Output parameters and protection functions are verified before the board ships with warranty documentation.
Why Repair Instead of Replace?
The total cost of board replacement is almost always higher than it looks — especially for obsolete equipment.
Flexa Systems PCB Repair
Get a Quote → Know Your Price- Free diagnostic — no charge if unrepairable
- 48–72 hour standard turnaround
- Original configuration & parameters preserved
- Works for obsolete & discontinued boards
- 2-year parts and labor warranty
OEM Replacement Board
- 6–20+ week OEM lead time on many boards
- Obsolete boards: unavailable at any price
- Requires reprogramming & reconfiguration
- May need wiring or mounting modifications
- Full commissioning time on top of lead time
Frequently Asked Questions
Common questions about our industrial PCB repair service
Send Us Your Board for Evaluation
Free diagnostic on every board received. We'll tell you exactly what's wrong and what it costs to fix — before any repair begins. No charge if we can't repair it.