FADOS 9F1 Circuit Board Tester

The FADOS 9F1 is CBT Electronic’s flagship circuit board diagnostic system, designed for rapid fault detection on populated PCBs without requiring power, schematics, or test fixtures. The system operates on the principle of VI curve tracing: a controlled test signal is applied to each component or node on a powered-off board, and the resulting voltage-current (VI) characteristic curve is captured and compared against a known-good reference board. Any deviation between the reference and test curves indicates a fault, open circuits, shorts, wrong-value components, or degraded semiconductors are immediately visible as curve shape changes. Because testing is performed with the board powered off, there is no risk of damage to the DUT or the operator, and no schematic is required to begin diagnosis.

The FADOS 9F1 includes a built-in programmable power supply (100mV to 16V, 10mA to 1.5A) that enables powered testing for scenarios requiring voltage bias, such as verifying voltage regulators, Zener diodes, or circuits that only exhibit faults under load. An integrated IR thermal sensor detects abnormally hot components on faulty boards, allowing technicians to quickly identify shorted ICs, failed regulators, or parasitic current paths before probing begins. The 12-bit ADC/DAC provides high-resolution measurements, ensuring subtle curve deviations caused by marginal or intermittent faults are captured with precision.

FADOS Analysis software provides automated point-by-point comparison between reference and test boards, generating clear pass/fail results with fault location reporting. Technicians can build and manage a database of reference boards, store measurement logs, and export detailed reports for quality documentation and traceability. The software supports measurement archiving, historical trend analysis, and batch reporting when used with the optional FADOS MUX multiplexer module.

Technical Specifications

Application Industries

The FADOS 9F1 is deployed across a wide range of industries where reliable circuit board diagnostics are critical to maintaining uptime and reducing repair costs:

• Aerospace and defence: depot-level repair of avionics boards, radar modules, and mission-critical control systems where schematics may be restricted or unavailable
• Telecommunications: fault diagnosis of exchange cards, base station modules, and network equipment boards during repair and refurbishment
• Industrial automation: troubleshooting PLC boards, motor drive controllers, and sensor interface modules in manufacturing plants
• Medical electronics: repair of patient monitoring, imaging system, and infusion pump controller boards under regulatory documentation requirements
• Automotive electronics: ECU and body control module diagnostics for repair centres and OEM warranty return analysis
• Education and R&D: electronics teaching laboratories and research groups requiring non-destructive board-level analysis

Why Buy from GSAS

GSAS Micro Systems is the authorized India partner for CBT Electronic, providing the full FADOS product range with local inventory, installation, and technical support. The FADOS 9F1 units supplied by GSAS are assembled at the GSAS Bangalore ODM facility, ensuring rapid availability and local quality assurance. GSAS provides pre-sales application consulting to help teams select the right FADOS configuration, on-site installation and training, and ongoing technical support including software updates and calibration services. With offices in Bangalore, Delhi NCR, and Mumbai, GSAS delivers responsive support for FADOS deployments across India.