User manual YAMAHA WR450F SERVICE MANUAL

[. . . ] REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. 9 · Explanation of Graphical Symbols The lightning flash with arrowhead symbol, within an equilateral triangle, is intended to alert you to the presence of uninsulated "dangerous voltage" within the product's enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons. The exclamation point within an equilateral triangle is intended to alert you to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance. 10 Power Sources ­ The unit should be connected to a power supply only of the type described in the operating instructions or as marked on the unit. 11 Power-Cord Protection ­ Power-supply cords should be routed so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the unit. 12 Cleaning ­ The unit should be cleaned only as recommended by the manufacturer. WARNING TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. 13 Nonuse Periods ­ The power cord of the unit should be unplugged from the outlet when left unused for a long period of time. 1 2 3 4 5 Read Instructions ­ All the safety and operating instructions should be read before the unit is operated. Retain Instructions ­ The safety and operating instructions should be retained for future reference. Heed Warnings ­ All warnings on the unit and in the operating instructions should be adhered to. [. . . ] * Low recording levels or excessive noise. * Pauses of less than 4 seconds between selections. · If searching is carried out at the first or the last part of a selection, the desired selection may not be found. CD/TUNER 1 1 6 6 A TIME DISC SKIP 2 2 7 7 B PROG 3 3 8 8 C TAPE 9 D EDIT STOP 0 E 4 4 5 5 +I0 PLAY/PAUSE MODE REPEAT RANDOM OPEN/CLOSE TUNER LOCATION PLAY STOP PLAY TAPE MUSIC USER FLAT REC/PAUSE DECK A/B POWER SLEEP INPUT VOLUME - + 22 TAPE DECK OPERATION 3 Continuous playback 1 2 Load the tapes into the DECK A and DECK B cassette compartments. If the reverse mode " " is not selected, press the reverse MODE selector button to select it. The reverse MODE selector button can be operated before or during playback, and changes tape playback as follows: B C 1 2 4 1 <Tape A> Tape A Side A B Tape B Side A B (Repeats 8 times) Starts from Tape A Side A. <Tape A> CD/TUNER 1 1 6 6 A TIME DISC SKIP 2 2 7 7 B PROG 3 3 8 8 C TAPE 9 D EDIT STOP 0 E 4 4 5 5 Tape A Side A B Tape B Side A B (Repeats 8 times) Starts from Tape A Side B. (Tape A Side A is not played at the first time. ) +I0 PLAY/PAUSE MODE REPEAT RANDOM OPEN/CLOSE TUNER 3 4 3 4 LOCATION PLAY STOP PLAY Select the tape to be played back first by pressing the DECK A/B button. Press the play button to listen to side A, or the play button for side B. 4 USER POWER TAPE MUSIC FLAT REC/PAUSE DECK A/B SLEEP INPUT VOLUME - + Dolby B and C Type Noise Reduction With cassette tapes, the most noticeable form of noise is high frequency hiss. To reduce this hiss noise, this unit has been equipped with a newly developed Dolby C noise reduction system in addition to its conventional Dolby B NR. Either type of noise reduction may be selected with the switch provided. Dolby B NR has a noise reduction effect of about 10 dB in the high frequency range. The corresponding figure with Dolby C NR is about 20 dB, but this is over the entire range where the human ear is most sensitive to noise (2 kHz to 8 kHz). Also, Dolby C NR has the same noise reduction effect at both high and low signal levels. Select the disc by pressing the DISC SKIP button. Load a tape into the DECK B cassette compartment. When recording with the Dolby NR system, select the Dolby NR B or C position by pressing the DOLBY NR button. * For selection of the Dolby B or C position, refer to the "Dolby B and C Type Noise Reduction" on page 23. If the reverse mode " " is not selected, press the reverse MODE selector button to select it. ("EDIT" appears on the display. ) CD playback and recording starts. Recording is carried out on side A and B of the tape continuously. * If the tape has not rewound to the end, it is rewound to the end rapidly before recording starts. Recording starts from the first part of the tape on which recording can be done. * "A " (or " B") on the display shows the side of the tape on which recording is being carried out. * When the recording on side A finishes while a track is being played back, the sound is automatically faded out, and then the recording stops. [. . . ] 6 ohms s Tuner section Tuning Range FM [U. S. A. and Canada models]. . . . . . . . . . . . . . . . . . . . . . 87. 5 to 107. 9 MHz [Australia, U. K. , Europe, General and Singapore models]. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87. 5 to 108. 0 MHz AM (MW) [U. S. A. , Canada, General and Singapore models] . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]