| 摘要 |
PROBLEM TO BE SOLVED: To make a receiving circuit cope with plural kinds of circuit constitution at a low cost in a keyless entry receiver. SOLUTION: A partial section of an electronic board 11 is made to be an area for disposing a receiving circuit module 2b, and a terminal pattern 203 connected to the receiving circuit module 2b is formed on the electronic board 11. In addition, a wiring pattern 202 connecting a component 201 of a receiving circuit of different circuit constitution from the receiving circuit moduel 2b is formed in the above-mentioned section. Either the receiving circuit composed of the receiving circuit module 2b, or the receiving circuit composed of the component 201 and wiring pattern 202 is selected as the receiving circuit combined with a control circuit 3. As to one kind out of a plurality of receiving circuit constitution, the receiving circuit can be formed without using the receiving circuit module. |
