| 摘要 |
<p>An electronic apparatus system comprises a housing (20) and modules (31-35) built detachably in the housing (20). The modules (31-34) each comprise a liquid crystal display (31a), a display control circuit (32a1), a navigation control circuit (32a2), an MD unit (33a), and a CD unit(34a). The module (35) is an integrated body of control sections which attain functions common to the display control circuit and the navigation control circuit, the MD unit and the CD unit, e.g., power-supplying constant voltage circuit. This constitution enables exchange of only necessary ones of the modules (31-34), so that the cost required for the upgrading etc. of the system can be reduced.</p> |
