| 摘要 |
PROBLEM TO BE SOLVED: To allow even different kinds of specified circuits to be used together, by setting pairs of facing pads to which a predetermined electronic component can be soldered so as to be bridged, providing parallel select wirings which are parallel to the pads and providing existing wirings together with the select wirings. SOLUTION: The printed board comprises a select wiring 1 and an existing wiring 2. The select wiring 1 has two pairs of facing pads 1a, mutually parallel to which the predetermined electronic component 3 such as resistors can be soldered so as to be bridged mutually therebetween. The existing wiring 2 forms a prescribed circuit with the select wiring 1, having the predetermined electronic component soldered to the pads 1a. The existing wiring 2 has pattern wirings 2a which are previously provided and pairs of facing pads 2b mutually parallel, to which the predetermined electronic component 3 such as a resistor can be soldered, so as to be bridged mutually therebetween.
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