Structured welding-machine repair reference

About WelderData

WelderData is a structured repair database for welding machines. The goal is to turn scattered repair notes, board clues, connector measurements, circuit paths and real fault evidence into practical pages that help qualified technicians narrow a fault before replacing parts.

What WelderData is building

WelderData is not a raw document library and not a generic welding blog. It is organized as a technical troubleshooting system: model hubs, visible fault entries, step-by-step diagnostics, board references, circuit paths, component tests, chip-level notes, repair cases and tools.

Workflow

Step-by-step diagnostics

Concrete troubleshooting routes that tell users what to check first and what evidence changes the diagnosis.

Evidence

Board and connector references

Board-level pages for sockets, rails, measurement points and related fault routes.

Logic

Functional circuit paths

Signal-path pages for gas control, HF arc start, wire feed, power rails and board-stack logic.

Product

Guided repair tools

Prechecks and selectors that convert diagnostic logic into faster evidence-based routing.

Core principle

WelderData should help a technician move from symptom to evidence. A visible fault should lead to a diagnostic path, then to board or circuit evidence, then to component or chip checks, and only then to replacement or repair action.

SymptomNo output, breaker trip, no HF, no gas, weak current.

WorkflowStep-by-step diagnostic route.

EvidenceBoard, connector, rail, feedback or signal path.

DecisionComponent test, chip path, repair case or tool.

What each section does

The site is organized around how repair work actually starts: model name, visible symptom, board evidence, signal path, suspected part, chip clue, real case or guided precheck.

ModelsKnown machine-model hubs for LGK, MIG200DL, CT-312, ZX7, WSM, WSE and related families. FaultsVisible-symptom entries such as no output, no HF, breaker trip and weak current. DiagnosticsConcrete step-by-step troubleshooting workflows. BoardsBoard, connector, socket, rail and measurement-reference pages. CircuitsFunctional paths such as gas solenoid, HF arc-start, wire-feed and control rails. ComponentsPart-level diagnosis for IGBTs, rectifiers, sensors, relays, solenoids and protection parts. ChipsIC-level reference for PWM controllers, optocouplers, op-amps and driver paths. Repair CasesReal troubleshooting evidence, misdiagnosis traps and reusable lessons. ToolsInteractive prechecks and diagnostic selectors built from repair logic.

What WelderData is not

This site should not be treated as a substitute for qualified electrical repair training, manufacturer safety procedures or proper test equipment. It also should not become a pile of screenshots, vague guesses or isolated thin pages.

Safety NoticeRead safety guidance before measuring welding-machine internal circuits. How to Use WelderDataUnderstand the recommended repair workflow and evidence-first navigation. IGBT Replacement PrecheckRun prechecks before installing and powering replacement power devices.

Editorial direction

WelderData pages should be written as practical repair references: clear symptom boundaries, useful measurement logic, board/circuit/component relationships, and strong internal links. The long-term goal is a searchable repair database, not a loose collection of pages.