| 摘要 |
PURPOSE: To provide an input level detector unnecessitating adjustment of an input level even when a front end section is revised. CONSTITUTION: A signal from front end sections 107a, 107b is fed to reception sections 104a, 104b via a changeover switch 108. The signal inputted to the reception sections 104a, 104b is fed to control sections 106a, 106b via variable resistors 105a, 105b. The control sections 106a, 106b recognize a front end section selected at present based on an information signal selected by a switch 109 in interlocking with a switch 108. Then one table in plural tables stored in the memories 163a, 163b is selected in response to the selected front end section and an input level is detected based on the selected table. |
