User manual ROTEL RA-1210

[. . . ] This shorting malfunction may be common cause of blown fuses or overload. Always use the fuse, if necessary to replace, of same type and rating as the one installed on the unit. Replacing fuse incor rectly with higher rating will defeat the purpose of protection and may cause severe damage instead. Furnished Convenience AC Outlet a) Do not insert or remove plug from any convenience AC outlet supplied on the appliance while the appliance is con nected to power. [. . . ] Caution: Do not apply power to the unit until the speakers are connected properly as described below. 1, the speaker terminals are quick-connect push-insert type, and are arranged into two boards, one for SPKR-A (main) and the other for SPKR-B(remote). Push back the tab on each terminal, sl ip the bare wire at the free end of the speaker lead into the opened jaw of the terminal, and release the tab to grip the bare wire in the jaw. (Note: if necessary, after stri ppi ng each end of speaker leads to obtain a bare wire, twist the bare strands together so it will be easy to insert and also prevent shorting among stray strands, ) Make sure the positive (+) lead of each speaker is connected to the (+) terminal and the ground (-) lead to the (-) terminal, and right to RIGHT and left to LEFT. If your turntable comes with RCA-type plugs on output cables, connect them cor rectly to corresponding RIGHT and LEFT jacks of PHONO inputs. If there is ground (earth) cable emerging from the turntable besides the output cables, connect it to the ground screw terminal marked GND or If your turntable comes with a DIN plug on output cable, simply plug in to the DIN socket marked PHON 0 1. NOTE: To avoid loss of high frequency response due to excessively long output cables, shielded cables not exceeding 10 feet (3 meters) in length should be used to connect your turntable. Connect the outputs of your stereo tuner to the LEFT and RIGHT TUNER input ter minals on the rear panel with shielded cables. Two sets of AUX input terminals are pro vided for connection of equipment such as tape deck without recording facility (e. A facility for tape recorder is referred to as TAPE MONITOR and is used in conjunction with the monitor control on the front panel. It is also used when your tape recorder has a separate playback head (i. @) HIGH FILTER - allows you to reduce high frequency interference whenever you wish to clear annoying record scratches, tape hiss, FM background noise, etc. ~ MODE CONTROL "LEFT" to ope rate only the sound from the left channel com ing out from both speaker systems; "RIGHT" for the right channel only. "LEFT" and "RIGHT" positions allow you to test each channel or compare each other. "STEREO" and "L + R" positions depends upon program source stereophonic or monophonic. (t LOUDNESS SWITCH - in ON position activates a circuit which boost low and high frequency sounds at low volume control settings. This compensates for the ears loss of sensitivity to bass and treble notes at low listening levels. However, leave the switch OUT at normal and high volume settings to prevent booming noise or overload on some speakers. â· AUDIO MUTING SWITCH - allows you to reduce the level of volume for mo mentary quieting when you do not wish to change the volume setting but must lower volume temporarily. Til MONITOR CONTROL - allows you to playback, monitor, and dub (record each other) two tape recorders. Set to "SOURCE" position whenever tape recorder is not being played but other material is being played. If your tape recorders have separate play back heads, "1" and "2" positions can be used as monitors when recording; setting to either of this position will allow IOU to listen to program as actually being recorded. [. . . ] Such equipment as electronic audio equalizer or reverberation unit can be used; or, another pre-amplifier or main amplifier may be hooked up. Simply set the switch to SEPARATE and follow the in structions suppl ied with the accessory equipment. One or both speakers are silent regardless of speaker switches and function selector control position), the protection circuit is probably activated due to an overload condition such as shorting by stranded speaker wires at the speaker terminals. Once the fault is found and corrected, the protection circuit will be deactivated by resetting and the unit will work. [. . . ]