User manual TECHNICS SU-700

[. . . ] Use a standard electrical AC wall outlet 1. Use trom an AC power souree ot high voltage, sueh as tor air eonditioners, is very dangerous. Be exlremely carelul nol 10 make aconnection 10 the electrical outlet lor a large air conditioner or central-heating unit which uses high voltage, because there is the possibility ol fire. [. . . ] Be sure 10 make this setting before swilching Ihe power "on". These selectors are used to select the sound sou ree 10 be heard, such as a disc, radio broadcasl, etc. The correspondlng indicator illuminales during operalion 10 indicate the selecled sound souree. Make I sure the volume conlrol is set to the low position. This indicator illuminates after the power is switched on and the unit IS in the operation condition. If the unit detects an abnormal condition in the circuitry, such as a DC component in the output, etc. , or if the posilive (+) and negalive ( - ) connection wi res from the speaker terminals are short-circuited. ihe prolection circuilry will luncllon 10 slop Ihe unit's operation and thls indicator will no longer illuminate. II this occurs, switch olf the power, and then, after finding and correcting the cause ol the problem. Set to Ihe "on" posilion when a dlsc is being changed or to temporarily reduce Ihe volume level. In addition, Ihe volume level can be adjusled more precisely if th is switch is set to the "on" position lor listening at a low volume level. These selectors are used lolurn Ihe speaker syslems on and off. Set to the "on" position when listening to music at low volume. Auditory perceplion of sound in Ihe low Irequency range falls oft al low volume, but when Ihe switch is in Ih is posilion, this deficiency is compensated for, so thai Ihe tuil impact of the musical performance can be enjoyed. Be sure to set Ihe volume level to the minimum ("0") position belore connecting the headphones. Set to this position to playback or monitor Ihe sound from a tape deck. Tape recordings from tape deck 1 10 tape deck 2 can be made by pressing the left switch inward to the "tape 1" position, re leasing the right switch outward to the "souree" position, and by preparing tape deck 1 for playback and tape deck 2 for recording. The protection circuilry may have operaled if eilher of the following conditions is noliced: -No sound is heard wh en the power is turned on. [. . . ] Set the mark on the balance control to the center to the center position. The power, and, after determining and correcting the cause, turn on the power once because the positive and negative speaker connection wires are "shorted" or speaker again. Systems with an impedance less than the indicated rated impedance ol the amplelier are used. [. . . ]