User manual ROLLS HR78

[. . . ] This warranty gives you specific legal rights, and you may also have other rights which vary from state to state. AM/FM Digital Tuner HR78 / RMS271 OWNERS MANUAL Rolls Corporation Salt Lake City, UT 8/05 INTRODUCTION Thank you for your purchase of the Rolls HR78 AM/FM Digital Tuner. This unit has been carefully designed and assembled to provide years of reliable AM/FM reception and audio quality. Please read this manual carefully as it contains important information regarding the proper setup and operaton of the HR78. FEATURES: · 12 FM and 6 AM presets · Retains presets when power is off · Large digital LCD display · Level control · 9 - 10 kHz bandwidth select switch · RCA and 1/8" (3. 5 mm) Stereo Outputs INSPECTION 1. [. . . ] · AUTO: This button engages the Auto search mode. When "AUTO" is shown in the display, and the Tuning up or down button is pressed - the HR78 automatically searches up or down for the next station with strong enough signal to lock onto. · LEVEL: Adjusts the output level of both the RCA and 1/8" (3. 5mm) outputs. PLEASE NOTE: FOR A LINE LEVEL OUTPUT SET THE LEVEL CONTROL AT APPROXIMATELY 3 O'CLOCK. · TUNING (- and +): Selects the stations that the HR78 is receiving. A B C D E 1 AUTO 2 MONO KHz FREQUENCY DISPLAY F HR78 DISPLAY A: Band indicator and number. There are two banks of FM and one bank of AM presets. When displayed, pressing the HR78 Tuning + and - buttons will seek out the closest station. Indicates whether the HR78 FM Mode is operating in Stereo or Mono. D: Mhz/Khz - indicates Megahertz (FM), or Kilohertz (AM) reception. E: Preset number - indicates which preset has been selected within the selected band. F: Station frequency indicator DESCRIPTION CONT. AM Loop antenna connection Connect the cord of the accessory AM loop antenna to the AM LOOP 300 Ohm terminals. When tuning in AM stations, move the antenna to the left or right and set in the direction which yields the optimum reception. · Do not place the power cord or speaker cords near the loop antenna. Multipath reflections FM waves, like light waves, travel in a straight direction unless reflected off objects in their path. Because of this, two sets of waves reach your antenna from the FM station; those that have traveled directly to the antenna, and those that have been reflected off buildings or mountains. When the antenna receives both kinds of signals, the two interfere with each other and result in distorted sound and poor separation. This phenomenon is called "multipath reflection". To reduce this problem, select an antenna with good directivity and place it in the best location with strong reception. · +12 VDC · Stereo Outputs RCA: Unbalanced RCA outputs. 1/8" (3. 5mm): Stereo Line/Headphone Output · FREQ SELECT: This switch selects between 9 and 10Khz frequency centers for the AM section. [. . . ] Cut off any extra length. OPERATION SET THE FREQUENCY SELECT The Power must be switched OFF when selecting this option. AM radio stations in the United States operate on 10kHz channel centers. In other parts of the world, stations are on 9kHz centers. The HR78 provides a rear panel switch to select the frequency centers for proper reception. [. . . ]