FADOS 7F1 Circuit Board Tester

The FADOS 7F1 is a portable circuit board diagnostic system from CBT Electronic, designed for efficient fault detection in electronic assemblies. Built on advanced VI (Voltage-Current) curve tracing technology, it enables engineers and technicians to analyze and diagnose PCB faults without the need for powered testing or circuit schematics.

The system works by applying a controlled test signal to components on a powered-off board and capturing their electrical response as a VI curve. This signature is then compared with a known-good reference, allowing quick identification of common faults such as open circuits, short circuits, incorrect component values, and degraded semiconductor behaviour.

Compact and lightweight in design, the FADOS 7F1 is well-suited for field service, repair centres, and laboratories, where portability and ease of use are essential. Despite its compact form, it delivers precise and reliable diagnostics, making it a practical tool for troubleshooting complex PCBs.

With its intuitive workflow and analysis capabilities, the FADOS 7F1 enables faster fault isolation, reduces repair time, and enhances overall maintenance efficiency in electronic systems.

FADOS Product Comparison

V-I Tester Features	FADOS 7F1	FADOS 9F1	FADOS MUX
Step of Voltages	±1V, ±2V, ±6V, ±12V, ±18V	±1V, ±3V, ±6V, ±12V, ±24V	-
Step of Resistances	Low: 47 kΩ, Medium: 2.6 kΩ, High: 385 Ω	Low: 47 kΩ, Med1: 3.5 kΩ, Med2: 700Ω, High: 250 Ω	-
Frequencies (±6V)	VLow: 2.71Hz, Low2: 5.71Hz, Low1: 45.68Hz, Test: 781.2Hz	VLow: 2.16Hz, Low2: 6.85Hz, Low1: 20.56Hz, Test: 54.82Hz, High ±1V: 7.81KHz, High ±3V: 2.23KHz	-
Number of Channels	2 (Channel 1, Channel 2)	2 (Channel 1, Channel 2)	0-50A and 0-50B (100 Ch)
Scan Modes	Manual / Automatic	Manual / Automatic	Automated sequential
Memory Function	Yes	Yes	-
Equivalent Circuit Diagram	-	Yes	-
Component Measurement	-	Yes	-
3 Simultaneous Graphs	-	Yes	-
Test Sound Feedback	-	Yes	-
Report Saving	No	Yes	Batch pass/fail
Power / IR Features
Variable DC Power Supply	No	100mV to 16V, 10mA to 1.5A	-
IR Temperature Sensor	No	Up to 120°C above ambient	-
Oscilloscope Features
Sampling / ADC	400 K/S, 2 Channel / 12-bit	400 K/S, 2 Channel / 12-bit	-
Dimensions	105mm × 55mm × 25mm	125mm × 113mm × 40mm	125mm × 113mm × 78mm
Weight	700g approx	1400g approx	1700g approx

Ideal Applications

The FADOS 7F1 is well suited for:

• Field service engineers: carry a complete board diagnostic system to customer sites for on-location troubleshooting without needing schematics
• Depot and warranty repair centres: efficient board-level fault isolation for high-volume repair operations
• Electronics training institutions: teach VI curve tracing and board diagnostic techniques with a professional-grade instrument
• Small and mid-size repair labs: full FADOS diagnostic capability at a budget-friendly entry point
• Multi-site deployments: standardize on FADOS across locations, with 7F1 units at satellite sites and 9F1 at the main lab

Why Buy from GSAS

GSAS Micro Systems is the authorized India partner for CBT Electronic, providing the FADOS 7F1 with local inventory, installation, training, and ongoing technical support. Reference board databases created on a FADOS 7F1 are fully compatible with the 9F1, enabling teams to share golden board data across field and lab environments. GSAS provides application consulting to help teams choose between the 7F1 and 9F1 based on their specific diagnostic requirements and budget, with offices in Bangalore, Delhi NCR, and Mumbai for responsive nationwide support.