
With boundary-scan method, a high-density digital board was tested, which increased the test coverage and faults coverage, and could diagnose and locate faults automatically. It conquered the bottleneck problems of CPU system and its I/O circuits test.
test coverage, Railroad engineering and operation, PCB test, boundary-scan, fault diagnosis, high-density digital board, TF1-1620, function test
test coverage, Railroad engineering and operation, PCB test, boundary-scan, fault diagnosis, high-density digital board, TF1-1620, function test
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