Marantz SM-17SA Specifications - Page 6

ENGLISH ENGLISH Caution concerning Bi-amp Connection Some speaker systems that permit bi-wiring do not permit biamp connection as described in the example on the preceding page. For example, if the or speaker terminals used for bi-wiring are shared, bi-amp connection is not possible with that speaker system. (The system will not operate correctly because the amp's protective circuits will be worked, etc.) For details, refer to the user guide provided with the speaker system, or contact the manufacturer of the speaker system. NAMES OF CONTROLS AND INDICATORS (Page 10) " ATT switch The gain of the amp increases during BTL operation in comparison with normal stereo operation. The ATT switch is an attenuator switch that reduces the amp gain by 6dB so that the gain is same with the gain that is output during normal stereo operation. # INPUT jack The L(BTL)/R input jacks are the left/right signal input jacks. When using the amp as a BTL amp (monaural), input the signal to the L(BTL) input jack. During BTL operation, this jack also functions as the BTL line amp signal input jack. $ BTL switch When this switch is in the NORMAL position, the unit functions as a stereo power amp. When this switch is in the BTL position, the unit functions as a monaural power amp. Caution: The BTL circuit (Balanced Transformerless circuit) can amplify the output power by having two amps connected to each other through a bridge connection; this amp will then function as a monaural amp. In addition, when this switch is in the BTL position, the signal from each amp is output to their corresponding BTL output jack (BTL OUT). % BTL OUTPUT jack These are the BTL line amp output jacks. The signal is output on these jacks if $ BTL switch is set to the BTL position. A signal with the same phase as the signal that was input to the L(BTL)/R input jacks is output on the L+/R+ output jacks, and a signal with the inverted phase as the signal that was input to the L(BTL)/R input jacks is output on the L-/R- output jacks. If another stereo power amp is connected, it can be used as a BTL power amp (monaural). (Do not connect any power amp for which the BTL connection is not guaranteed.) & SPERKER OUTPUT treminal These output terminals are for connecting the speaker systems. Refer to page 2 for details on how to connect the speaker system when using the SM-17 as a stereo power amp. When using the SM-17 as a BTL amp (monaural), connect the speaker system to the L terminal and the R terminal. In this case, connect the positive line from the speaker system to the BTL (L ) terminal, and the negative line from the speaker system to the BTL (R ) terminal. ' AC IN jack Connect to AC power outlet. This unit can be powered by 120 V AC only. ( AC OUTLETS [SWITCHED] The switched outlet is turned on and off by the main power switch. The maximum power capacity of this outlet is 120W. [UNSWITCHED] Use this outlet as the power supply for a component that does not need to be turned on and off by the main power switch. The maximum power capacity of this outlet is 120W. Do not plug a device that consumes a great deal of power into this outlet. For the best audio quality, we recommend that you plug your CD player, MD player, or other digital audio component into a power outlet that is independent of the power supply for the amp. q POWER switch Press to turn power ON and press again to turn it OFF. Meter w lights up when the POWER is turned ON. w Warm-up meter With any audio unit, the real sound quality cannot be obtained immediately after the power is turned on, and warming up is required to make the unit exhibit its full performance. As time passes after the power has been turned ON, the temperatures of different parts of the unit become constant and the electrolytic capacitors become active. This meter allows to check the warm-up condition of the unit. The meter needle starts to swing gradually in a little while after the power is turned ON and reaches about 2/3 of the meter's full scale in about 30 minutes. Now the unit has almost been warmed up and can reproduce music with its original performance. The meter positions immediately after turning power on and at the end of warming up and the time taken for warming up are variable depending on the temperature, ventilation and other conditions of the listening room where the unit is located. TROUBLESHOOTING In case of trouble with the unit, first check the following before calling for service. What seems to be a serious malfunction is often due to a simple operation mistake. If the trouble still persists after checking, please consult your dealer or nearest MARANTZ service agent. The amplifier does not work and the warm-up meter lamp does not light. 1. Check if the power cord is plugged properly into an AC power outlet. Sound is produced only from one of the speaker systems. 1. Check the connection of the RCA pin cords and speaker cords. 2. Turn power of the set off and change the connections of the left and right speaker systems, If sound is still not output from the same speaker system, check its connection cord or the speaker system itself. Sound is not produced at all. 1. Check the connection of the speaker cords. 2. Check the connection of the RCA pin cords. The sound from both speakers is monaural. 1. Make sure that the NORMAL/BTL switch is not set to the BTL position. 4