Description
Keysight MXR258A Oscilloscope Repair
The Keysight MXR258A is an Infiniium MXR-Series mixed-signal oscilloscope — an 8-channel scope (to ~2.5 GHz) integrating scope, logic, and analysis with a touchscreen for multi-channel embedded and power work. As a precision acquisition instrument, its faults concentrate in the analog front-end, the ADC/acquisition system, the trigger, and the touchscreen.
June Company repairs and calibrates the Keysight MXR258A for embedded, power, and test engineers.
Common Keysight MXR258A problems we fix
- ADC degradation — acquisition faults causing distorted or missing captures, repaired and recalibrated.
- Trigger-system faults — unstable or wrong triggering, repaired and recalibrated.
- A channel dead, noisy, or inaccurate — analog front-end damage from overload on one of the eight channels, repaired.
- Digital (MSO) channels not working — the logic-acquisition hardware, restored.
- Touchscreen or power faults.
FAQs
My captures are distorted or triggering is unstable — fixable? Yes. ADC and trigger faults are repairable, then the scope is recalibrated so capture and triggering are restored, with a NIST-traceable certificate.
Is the touchscreen repairable? Yes — touch panel repair is routine.
Every repair includes NIST-traceable calibration and a 90-day parts-and-labor warranty. Email us or submit a service request.









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