User manual YAMAHA KX-W900

[. . . ] Choose the installation location of your unit carefully. Avoid placing it in direct sunlight or close to source of heat. Also avoid locations subject to vibration and excessive dust, heat, cold or moisture. Keep it away from sources of hum such as transformers or motors. 3. Do not open the cabinet as this may result in damage to the deck or electrical shock. [. . . ] Dolby C NR is approximately twice as effective as the earlier Dolby B NR. Each time this button is pressed, Dolby NR switches as follows: 3 MPX filter FM stations transmit a 19 kHz pilot signal in addition to the broadcast program. Sometimes this pilot signal may leak into the audio output depending on the tuner and broadcast conditions. This signal can cause improper operation of the Dolby NR systems. Activating the MPX filter (B TYPE/C TYPE MPX ON settings) will effectively remove the signal. B (MPX off) Recording with DOLBY B NR Only the B indicator lights. 3 C (MPX off) Recording with DOLBY C NR Only the C indicator lights. 3 B MPX on Recording an FM broadcast with DOLBY B NR B and MPX FILTER indicators light. 3 C MPX on Recording an FM broadcast with DOLBY C NR C and MPX FILTER indicators light. The error depends on the type of tape being used. Three head system The three-head system allows the just-recorded sound to be monitored while recording. You can compare the difference between the recorded sound and the source sound by switching the monitor mode (SOURCE or TAPE) with the MONITOR button, so you can try to obtain a recording sound identical to the source sound. To monitor the just recorded sound MONITOR SOURCE Tape remain indicator The tape remain indicator shows the remaining length of the loaded tape to be recorded. When the recording reaches the end of the tape, the leftmost digit of the tape remain indicator blinks. Indicates the remaining tape length. MONITOR TAPE To monitor the sound to be recorded SOURCE TAPE Lights when a tape is loaded. 9 ENGLISH Lights during rec pause mode or recording. Blinks while the sound muted section is recorded. When a tape is loaded, the corresponding tape type indicator lights. VARIOUS FUNCTIONS HELPFUL FOR HIGH QUALITY RECORDING This deck has a built-in Auto Tape Selector which automatically adjusts the recording characteristics according to the tape formulation (see page 12) and a Dolby HX Pro Dynamic Bias Servo System which automatically controls the effective bias during recording. In addition to these functions, you can refine your recordings by using the Auto Tape Tuning function, which adjusts the recording bias and sensitivity for each tape you use. Auto tape tuning function The auto tape tuning function improves the quality of recording, permitting precise adjustment of the deck's recording bias and sensitivity for best results with every tape you use. ¶ Classification of Cassette Tapes by Formulation Cassette tapes are available in four basic types depending on their formulation, or type of magnetic material and manufacturing process. These four types are commonly known as Normal (Type I/NORM), Chrome (Type II/HIGH <CrO2>), Ferrichrome (Type III/FeCr), and Metal (Type IV/ METAL), and they each require specific tape deck adjustments for optimum performance. * YAMAHA does not recommend the use of 120-minute length cassettes since the extreme thinness of the tape makes them susceptible to mechanical and recording problems. PROTECTING YOUR RECORDINGS All cassette tapes are provided with erasure protection holes to prevent accidental erasure of recorded contents. There is a small tab covering the hole on each side of the cassette, and it should be broken off after recording on the tape. Without this tab covering the hole, it is impossible to record onto that tape. Thus, you can safely protect a recording for as long as you wish without fear of accidental erasure. Should you wish to use a cassette tape protected in this way for recording, simply covering the hole with adhesive tape will permit erasure and re-recording. ¶ When using Chrome (Type II/HIGH <CrO2>) or Metal (Type IV/METAL) tapes, make sure you do not cover the hole intended for the Auto Tape Selector operation. AUTO TAPE SELECTOR DETECTION SLOTS The deck has a built-in Auto Tape Selector which automatically adjusts for the proper bias, level and equalization according to the tape formulation -- all you have to do is to load a cassette and the Auto Tape Selector does the rest. The Auto Tape Selector determines what type of tape is loaded by sensing detector slots on top of the tape shell. Each tape formulation has its own characteristic hole markings standardized by the tape industry. [. . . ] less than ±0. 08% Signal-to-Noise Ratio (Dolby NR off) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . better than 60 dB (Dolby B NR on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . better than 68 dB (Dolby C NR on) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . better than 76 dB Frequency Response Normal tape (­20 dB) . . . . . . . . . . . . . . . . . . . [. . . ]