| 摘要 |
<p>PURPOSE:To facilitate the writing, administration and quality control of code signatures by connecting a memory writing device to a memory circuit and reading out control circuit of a circuit board and carrying out a circuit test, then writing the code signs into the memory circuit in the reset state of the reading out control circuit. CONSTITUTION:The circuit board 11 provided with the memory circuit 12 for the code signatures, the reading out control circuit 13 and plural terminals 14 connected to these circuits is prepd. The circuit to execute the prescribed operation sequence to read the output signal of the memory circuit 12 is formed in the reading out control circuit 13 in this stage but the code signatures are not stored in the memory circuit 12. Then, the circuit test is carried out by the memory writing device at this stage and an F code is displayed for all the outputs of the memory circuit 12 unless there is abnormality. The quality inspection is thus easy. In succession, the reading out control circuit 13 is held in the reset state and the code signatures are written into the memory circuit 12; thereafter, the circuit board 11 is removed from the memory writing device. The writing administration and quality control of the code signatures are facilitated in this way.</p> |
