Detectable manufacturing failures are mainly:
1. Component failure: out-of-tolerance of resistors, capacitors, inductors, diodes, transistors, integrated blocks and other components,
damage.
2. Soldering failure: Bridge and solder leakage after soldering through wave soldering or reflow soldering in PCB assembly processing.
3. Insertion (paste) installation failure: Missing insertion (paste), reverse insertion (paste), and wrong insertion (paste) in PCB assembly processing.
4. Circuit board failure: the opening and breaking of the copper foil of the PCB board.
Benefits of using an in-circuit tester:
The application of online tester equipment has brought about great changes in the production process and management of circuit boards, which are embodied in the following aspects in the application of enterprises:
1. Greatly increase the production speed and output, and improve the straight-through rate
The application of on-line test equipment solves the bottleneck in production and makes the equipment utilization rate of the production line reach the highest level, so as to obtain the maximum production volume while obtaining a high through rate.
2. Significantly reduce maintenance technicians and their training
Because each online tester only needs to be equipped with a circuit board maintenance worker, and the maintenance worker's task is to troubleshoot the printed faults of the tester without knowing the circuit principle. Thus, the training of maintenance workers is omitted. Therefore, enterprises have greatly reduced their dependence on high-level maintenance technicians.
3. Simplify production quality management processes and methods
Due to the means of immediate detection and statistics of the quality of cartridge placement and welding, the quality of the previous process has been quickly feedback-controlled.
4. Significantly reduce production costs
Since a lot of man-hours, training costs, management costs, material costs, etc. have been saved, the huge reduction in production costs is self-evident.
5. Significantly reduce after-sales service costs and improve corporate market reputation
Before adopting the online tester, a large number of products with hidden faults and temporary good performance came into the market, resulting in a vicious circle of prominent after-sale quality contradictions, sharp increase in service costs, and decline in corporate reputation. However, the online tester can detect and eliminate the hidden faults on the circuit board and ensure the overall quality of the circuit board, so that the above problems can be solved easily.
6. Accelerate the development and production of new products
Online testing equipment enables new products to achieve the goal of stable mass production in just a few days, so companies can quickly launch new products that meet market demand without worrying about organizing production and product quality.
7. Enhance the company's ability to undertake processing business and improve the success rate of the company's horizontal joint venture cooperation
The presence or absence of online testing equipment has now become the key equipment to be inspected by domestic and foreign orderers when looking for cooperative factories. For professional processing companies, having online testing equipment as a means of comprehensive quality assurance and accelerated production can quickly gain cooperation approval.
Product features:
- Automatic program learning, automatic parameter selection
- Block test mode, multiplying work efficiency and saving investment
– Convenient system expansion structure, which can be upgraded at any time to adapt to needs
– Perfect self-checking function to ensure permanent good condition before work
– Automatic prompting for poor probe contact
– Automatic data backup and backup to ensure no data loss
– Up to 8-pin isolation per step , for component isolation test
- automatically eliminate distributed capacitance, contact resistance
- rich statistical functions such as numbers, graphs, curves, etc., provide the most reliable data to improve process and quality management
- full board automatic discharge function, improve equipment reliability
– Using four-pin eight-wire test technology to eliminate lead resistance and probe contact resistance, so that the 0.01 ohm micro-resistance test is stable
– Three-pin capacitance polarity test technology, which can test capacitance polarity
– Multi-pin device measurement method, special test Multi-pin devices
– can detect faults such as IC (integrated circuit) insertion, reverse insertion, open pins, etc.
– The use of triode beta test and other technologies can test the consistency of components
– Sensitive voltage sensing technology can measure the open circuit of IC pin leakage, connectors, and polarity of small capacitors
– Can measure 48V inner zener diode (optional). pieces)
– Very high test coverage and resolution, can measure optocouplers, potentiometers, connectors, crystal oscillators and other devices
– Coordinated with waveform display, the measured values are more accurate and reasonable
– System self-calibration without external circuits
– Up to 5MHz signal source frequency
- measurable frequency up to 50MHz (option)
- the use of software filter, the test stability is excellent!
Extensible functional test items:
1. Vibrator:
Mobile phone vibrator test, test whether it rotates or not
2. Varistor:
Test the quality of the varistor, the accuracy is ± 5%
3. Photosensitive device:
Test the quality of photosensitive devices.
4. Hall element:
Test the function of the Hall device.
5. Measuring frequency:
Measure the frequency value. The frequency test is carried out on the point to be measured, and the measured signal source is a small AC signal ( amplitude
value 1-8V) or TTL signal.
6. Measuring voltage ( 0-10V ):
Measure the output AC and DC voltage, can test the average or peak-to-peak value with DC input,
or the peak-to-peak value of an AC signal
7. Measuring current:
Output DC voltage, measure the output current, the test range is 0~80mA , the accuracy is ±
10%
8. Static current:
Measure the quiescent current of the microamp level when the measured object is not working,
9. Program-controlled power supply:
Power supply can be customized according to customer needs
10. Multi-distance control power supply:
Provides three voltages and one constant current at the same time.
11. Signal conditioning board:
A signal conditioning board specially designed for small voltage and current signal detection, with dynamic
The state filter can be used to set the signal of a specific frequency for measurement using the software.
12. LED test ( RGB ) :
It is specially used to measure the brightness of the LED (the frequency corresponding to the brightness of the LED to be measured)and color.
13. LED brightness :
Using a special brightness test module, the RGB components of the LED light are measured separately.
In order to achieve the purpose of detecting the LED brightness (the sum of the absolute value of RGB and components), or by means of camera capture, to measure
LED components and brightness, color, etc.
14. High current measurement LED :
Brightness is measured by a high current test module.
15. GPIB test :
The software provides an interface to connect and control GPIB devices, which can be controlled in the form of instructions
GPIB equipment performs corresponding operations, such as sending voltage (programmed power supply), test frequency
(oscilloscope) etc.
16. IIC communication module
The modular design is used to test the IIC interface equipment .
At the same time, edit different test steps to test.
17. FIN668 functional test
Dedicated FIN668 chip test module.
18. TVS test _
Used to test the breakdown voltage, reverse leakage current, etc. of TVS devices