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Test Equipment Repair Services – RF & Optical Specialists | Aumictech

Precision Engineering • Component-Level Diagnostics • OEM-Standard Restoration

Aumictech provides engineered repair solutions for RF, optical, and fiber-optic test equipment used in research laboratories, semiconductor facilities, telecom networks, photonics manufacturing, and advanced measurement environments.
Our repair processes are built around technical accuracy, traceability, and long-term stability, ensuring every instrument returned to the customer meets or exceeds original performance specifications.

Aumictech repairs pic

Original OEM Parts

Fastest Turnaround Time

Free Evaluation

Software/Options Upgrade

Onsite Repairs & Evaluation

Comprehensive Repair Coverage

Aumictech’s repair services support:

  • Optical test and measurement instruments

  • Optical spectrum analyzers

  • Tunable lasers and light sources

  • Optical power meters and lightwave meters

  • RF and microwave analyzers and generators

  • Vector network analyzers

  • Fusion splicers (standard and polarization-maintaining)

  • OTDRs and fiber inspection platforms

  • Power sensors and frequency counters

  • And many more…

Repair capabilities include electronic, optical, mechanical, and firmware-level restoration. Each instrument receives a complete evaluation to determine the corrective actions required.

Support for Legacy and Discontinued Equipment

Many laboratories continue to rely on instruments that are no longer supported by the manufacturer.
Aumictech maintains repair capability for a wide range of legacy optical, RF, and fusion splicing systems, allowing customers to extend equipment service life and avoid premature capital replacement.

This includes older optical spectrum analyzers, early model fusion splicers, discontinued RF analyzers, and other instruments commonly classified as “obsolete” by OEMs.

Quality & Technical Standards

Aumictech’s repair services follow structured engineering controls, including:

  • Defined diagnostic and test procedures

  • Calibrated reference standards

  • ESD-controlled handling processes

  • Documentation of all findings and corrective actions

  • Post-repair performance confirmation and calibration

Each completed repair is supported by detailed reporting and traceability.

Service Advantages

Customers rely on Aumictech for:

  • Support across multiple instrument categories

  • Capability for both modern and legacy equipment

  • Cost-effective repair options

  • Predictable turnaround times

  • Detailed reporting and transparency

  • Calibration included with completed repairs

  • Domestic and international service availability

What Makes Aumictech Different?
  • Technical Expertise: Our engineers are experienced in repairing and refurbishing a wide range of RF, microwave, and optical test instruments.

  • In-House Repairs: All services are completed in our Downingtown, PA repair lab. No outsourcing.

  • Fast Turnaround: Most repairs completed within 1–3 business days.

  • Return Guarantee: All repairs include our standard 15-day Return on Repair (RoR) policy.

  • Global Service: We offer worldwide repair services with insured shipping through FedEx, UPS, and DHL.

Why Optimize Repairs Instead of Replacing?
  • Cost savings of up to 70% compared to OEM replacements

  • Faster turnaround than OEM service centers

  • Helps extend the life of legacy equipment no longer supported by manufacturers

  • Avoid downtime and keep your lab or production running smoothly

Shipping & Payment Options
  • We offer domestic and international repairs

  • Use your carrier account or ours (UPS, FedEx, DHL)

  • We accept PayPal, credit/debit cards, ACH, and wire transfers

Optical Spectrum Analyzer (OSA) Repairs

We service Ando, Yokogawa, Keysight/Agilent, Anritsu, Bristol, and EXFO OSAs.

Common OSA Failures We Fix
  • Wavelength drift

  • No sweep or slow sweep

  • Grating motor stall or vibration

  • HDD failure / firmware boot loops (common on Ando AQ6317 series)

  • Dim or dead LCD displays

  • Detector aging (weak sensitivity, poor power accuracy)

  • Broken input connector assemblies

  • Calibration error messages

Our Repair Process Includes
  • Restoring or replacing hard drives (SSD conversions for older models)

  • Rebuilding sweep/grating motors

  • Optical bench cleaning and internal alignment

  • Detector/power amplifier repair

  • Restoring corrupted firmware

  • Replacing LCD/backlight assemblies

  • Full wavelength and power verification after repair

Aumictech is one of the few labs capable of restoring older Ando analyzers that OEMs consider obsolete.


Fujikura & PM Fiber Fusion Splicer Repairs

We specialize extensively in repairing Fujikura 20PM, 40PM, 45PM, 100P, 100M and standard SM splicers.

Common Issues We Repair
  • High splice loss

  • PM rotational alignment drift

  • Arc calibration errors

  • X/Y/Z motor faults

  • Heater tray failure

  • Touchscreen not responding

  • Dust contamination causing misalignment

  • Electrode burn or arc instability

Our Splicer Repair Capabilities
  • PM axis optical realignment

  • Motor rebuild and recalibration

  • Replacement of electrodes, heater, fans, sensors

  • Touchscreen and LCD repair

  • Cleaning and micro-polishing of V-grooves

  • Recalibrating arc profiles and loss estimation

Every splicer undergoes a full alignment and test splice certification before return.


RF & Microwave Equipment Repairs

We restore a wide range of RF and microwave gear used in production lines, military labs, and R&D facilities.

Equipment We Repair
  • Spectrum analyzers

  • Signal generators

  • VNAs

  • Power sensors and meters

  • Frequency counters

  • Modulation analyzers

Typical Failures
  • No RF output

  • Broken input connectors

  • Wrong amplitude readings

  • Failing attenuators

  • Power supply instability

  • YIG oscillator or PLL unlock

  • Display/LCD failure

  • Firmware corruption

Our Repair Work Includes
  • Front-end RF path repair

  • Replacing attenuators, mixers, IF amplifiers

  • Oscillator and synthesizer troubleshooting

  • LCD and touchscreen replacement

  • Reflowing or replacing failing components

  • Full RF performance verification

Every RF repair concludes with traceable power and frequency accuracy checks.


OTDR, Tunable Laser & Lightwave Meter Repairs

We Repair
  • OTDRs (EXFO, Viavi, Anritsu)

  • Tunable laser sources

  • Optical power meters

  • Lightwave multimeters

Common Symptoms
  • No trace output

  • Incorrect distance measurements

  • Dead detector or SLED module

  • Range switching failure

  • Frozen UI or non-booting units

  • Wavelength instability or drift

What We Do
  • Rebuild laser/detector stages

  • Firmware reload and OS repair

  • Optical alignment and cleaning

  • Restoring burnt connectors or ports

  • Replacing internal boards and power supplies

NIST Calibration
Onsite Repair on demand
We use Latest tools and Equipment for your repairs
Thorough Testing before shipping out your Equipment
Get your Quote today. Or contact us at Sales@aumictech.com

Call +1 ‪(484) 841-9341‬

Few examples of Repair Services by Aumictech
Equipment CategorySupported BrandsPopular ModelsCommon Failures / SymptomsRepair Services Provided
Optical Spectrum Analyzers (OSA)Ando, Yokogawa, Keysight/Agilent, Anritsu, Bristol, EXFO, HP, Photonetics WalicsAQ6317B, AQ6317C, AQ6319, AQ6331, AQ6370D/C/B, AQ6380, AQ6370E,  86140B, MS9740A, 70950B, 3651HR12, 86146A/B, 86145A/B, 86140A/B• Wavelength drift
• Dead/weak detector
• HDD failure / boot loop
• Dim or dead LCD display
• Slow sweep / motor stall
• Calibration error messages
• No trace or unstable readings
• HDD/SSD replacement & OS restore
• Grating motor rebuild
• Optical bench realignment
• LCD/touchscreen replacement
• Power supply repair
• Detector/power amplifier repair
• Firmware restoration & corruption repair
Tunable Lasers & Light SourcesKeysight, Santec, Yenista, Ando, Anritsu81680A, 81608A, TLS-55, Tunable ECL Lasers• Unstable wavelength
• Low output power
• Excessive ASE noise
• No output / laser shutdown
• Overheating or fan faults
• Laser module repair
• Output power amplifier restoration
• Temperature control repair
• Optical alignment
• Fan/rear board replacement
Optical Power Meters & Lightwave MetersKeysight, EXFO, Viavi/JDSU, Yokogawa, Anritsu8163B, 81634B, AQ2170, IQ-1600, JW3208• Incorrect power readings
• Zero offset problems
• Dead detector head
• Range not switching
• Display issues
• Detector replacement
• Power amplifier repair
• Range switching repair
• LCD/touchscreen replacement
• Firmware reset & recalibration
OTDRs & Fiber Inspection ToolsEXFO, Viavi, Anritsu, YokogawaFTB-1, FTB-200, MTS-6000, MW9076• No trace / weak backscatter
• Distance error
• Dead laser/detector
• Frozen UI / boot failure
• Broken connectors
• Laser/detector repair
• PCB repair
• Touchscreen replacement
• Connector port rebuild
• Firmware reload & diagnostics
Fusion Splicers (SM & PM)Fujikura, Sumitomo, Fitel, INNOFSM-20PM, FSM-40PM, FSM-45PM, FSM-100P, FSM-100M• High splice loss
• PM axis drift
• Arc failure
• Z/X/Y motor error
• Heater failure
• Bad electrodes
• Touchscreen not responding
• PM axis realignment
• Motor rebuild & recalibration
• Arc circuit repair
• Electrode replacement
• Heater unit repair
• Touchscreen/LCD replacement
• Full internal cleaning & restoration
Spectrum AnalyzersKeysight/Agilent, Rohde & Schwarz, Tektronix, Anritsu856x Series, E440x, N9000, FSV, FSU, MS266x• No RF input
• Wrong amplitude
• Failing attenuator
• Broken input connector
• Cracked LCD
• PLL unlock / phase noise issues
• Front-end RF path repair
• Attenuator & preamp rebuild
• Reference oscillator repair
• LCD replacement
• Fan/PSU repair
• Input connector replacement
Signal GeneratorsAgilent/Keysight, Rohde & Schwarz, Anritsu, TektronixE4438C, E8257D, SMU200A, SML Series• No RF output
• Level error
• Modulation failure
• Frequency drift
• Internal error messages
• RF output module repair
• Power amp repair
• Modulation board replacement
• OCXO/TCXO repair
• Firmware recovery
Vector Network Analyzers (VNAs)Keysight, Rohde & Schwarz, Anritsu8753D, E5080A, PNA Series, ZVL, ZNB Series• Wrong S-parameters
• Source port failure
• Port damage
• Display failure
• Boot loop / no startup
• Port module repair
• Source/receiver chain rebuild
• Touchscreen replacement
• Power supply repair
• Firmware reload & diagnostics
RF Power Meters & SensorsKeysight, Boonton, Anritsu, Rohde & SchwarzE4412A, 848x sensors, 501 Series• Incorrect readings
• Sensor burned/open
• Cable/connectivity issues
• No power-up
• Sensor head repair
• Internal amp module replacement
• Range switching repair
• Cable/connector repair

Why Companies Trust Aumictech for Repairs

Factory-Level Precision

Every repair is performed with the same discipline and methodology used by major OEMs. We use calibrated references, optical standards, RF generators, power sensors, and wavelength anchors to verify every step of the repair.

Expertise With Legacy & Discontinued Equipment

Our team regularly restores instruments that most OEMs no longer support, including Ando OSAs, early Yokogawa AQ models, Fujikura PM splicers (20PM/40PM/100P), and older Keysight/Agilent analyzers.

Real Engineering Diagnostics

We do not depend on automated scripts. Repairs include detailed diagnostics of:

  • Power supply rails

  • Detector front-ends

  • Laser modules

  • Sweep motor systems

  • Arc circuits

  • Alignment stages

  • Clock and RF synthesizer chains

  • HDD and embedded OS failures

Fast Turnaround & Clear Communication

Before work begins, you’ll receive:

  • A complete evaluation report

  • Photos or videos (if needed)

  • A clear repair estimate

  • Expected turnaround time

Upon completion, every repaired instrument is calibrated and tested before shipment.

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