[. . . ] AC power adaptor (not supplied) Xxxxxx To take out the batteris (see Fig. Keep mCUE/MREVIEW pushed down during playback and release it at the point you want. [. . . ] Use the AC-E30HG AC power adaptor (not supplied) (For "Sony World Model": in Japan, use the AC-E30M, not supplied). Connect another tape recorder to the MIC jack using the RKG64HG connecting cord (not supplied) (For "Sony World Model" : in Japan, use the RK-G64, not supplied). Set this unit to the recording mode and another tape recorder to the playback mode. To clean the tape head and path Press n and wipe the head 1, capstan 2 and the pinch roller 3 with a cotton swab, moistened with alcohol every 10 hours of use. A: provided or supplied --: not provided or not supplied Check your local voltage and the shape of plug before purchasing. 4 cm for optimum sound (recommended for normal use): A 30-minute recording can be made using both sides of the MC-30 microcassette. 2 cm for longer recording time: A 60-minute recording can be made using both sides of the MC-30 microcassette. If you set VOR to H or L, the unit automatically starts recording the sound and pauses when there is no sound (you can save tapes and batteries). When the sound is not loud enough, set it to OFF, or the unit may not start recording. While the tape runs, the REC lamp or REC/BATT lamp lights and flashes depending on the strength of the sound (M-640V/ 540V only). Press or slide xZ z during playback (the unit becomes in the recording mode) Push up mCUE/MREVIEW toward MREVIEW during the recording. Use a microphone of low impedance (less then 3 kilohms) such as ECM-T6 (not supplied). [. . . ] 4 cm tape speed for recording, if you play back the recorded tape with another unit. When you use the system in a noisy place, the unit will stay in the recording mode. [. . . ]