| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable an operator to easily specify a hard disk in which an error occurs even if power supply to a karaoke device is interrupted. <P>SOLUTION: When a main control part 7 determines that an error occurs to a specific HDD 10 of a plurality of HDDs 10 and 11, an error display circuit 9 makes an LED 12, which corresponds to the HDD 10, emit light by using power supplied from a power source part 117 to report the occurrence of the error. Then, even if power supply to the power source part 117 of a karaoke commander 20 is interrupted when the HDD 10 in which the error occurs is replaced, the error display circuit 9 makes the LED 12 successively emit light by utilizing power supplied from a charged battery 93 to report that the error occurs in the HDD 10. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
