WelderDataSearch

Start from the nameplate or machine family

Welder models

Choose the closest machine family, then move to its known boards, power rails, controller chips, common faults and diagnostic sequences.

Fast starting points

Open the route that best matches the evidence already available.

ZX7-250

Open the complete power, control, driver and output references.

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NBC / NB MIG

Find wire-feed, trigger and control-board references.

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WS / WSM / WSE TIG

Follow gas, HF, current-control and secondary-inverter routes.

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LGK plasma

Use air, HF, pilot-arc and transfer references.

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MMA and ZX7 inverter welders

Stick-welder families with related DC-bus, PWM, driver and output-stage references.

Model centerZX7-250Boards, control rails, gate drive and complete fault routes.Model familyZX7-160 / 200Small inverter board stack and common symptom routes.Model familyZX7-315 / 400 / 500 / 630Large IGBT inverter variants and test references.Machine familyGeneric ARC / MMAStart here when the exact brand is not available.

MIG, MAG and CO2 welders

Machine families where trigger, wire-feed, gas and burn-back control are central.

Machine familyNBC / NB MIGWire-feed and control references for common NBC/NB layouts.Model centerMIG200DLTrigger, output, wire-feed and breaker-trip diagnostics.Machine familyPanasonic KRControl and power-board references for KR CO2/MIG machines.Machine familyPanasonic RF2 / YC-300/500Inverter CO2 power and gate-drive references.

TIG and AC/DC TIG welders

Gas sequence, high-frequency start, current control and secondary-inverter references.

Model centerWSM-315Control board, panel, HF board and current feedback.Model centerWSE AC/DC pulse TIGSecondary inverter, balance and pulse-mode references.Board-stack familyWS-200P / WS-200SUpper, lower and middle-board relationships.Machine familyWS / WSM / WSME TIGUse when the exact model page is not available.

Plasma, combination and industrial machines

Pilot-arc, multi-process and non-inverter families with distinct repair paths.

Model centerLGK60L plasmaBoard stack, air, HF and pilot-arc routes.Model centerLGK100L plasmaConnector, protection and no-output diagnostics.Combination modelCT-312Shared power stage with MMA, TIG and plasma process faults.Machine familyMZ submerged arcControl, current feedback and thyristor power-source references.

Next step

The exact model is missing?

Use the closest machine family, then search the board number, controller IC or visible fault.

Boards and chipsFind the board or controllerStart from the PCB function, chip marking or driver module.FaultsStart from the symptomUse no power, no output, protection or process behavior.SearchSearch the full technical indexTry model aliases, chip markings and board functions.