SONY索尼RDR-HX510HX710HX910 用户手册.PDF,2-589-942-E1(1) DVD Recorder Operating Instructions RDR-HX510 RDR-HX710/HX910 © 2005 Sony Corporation Precautions WARNING • This unit operates on 220 – 240 V Precautions AC, 50/60 Hz. Check that the unit’s