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Фрагмент инструкции
Remove power before wiring. To verify the polarity before connection, check the no load power supply output with a voltmeter. RAC 104 • Installation and Operation 2-7 Installation and Operation, cont’d Your RAC 104 may have shipped with a blue captive screw connector. This blue connector can be plugged into either a blue or an orange power receptacle. The ideal length of exposed (stripped) copper wire for the blue connector is 3/16" (5 mm). The blue connector does not have the extended tail or the included tie-wrap. Do not tin the power supply leads before installing in the direct insertion connector. Tinned wires are not as secure in the connectors and could be pulled out. After making any adjustments to the RAC 104, either via the front panel controls, SIS commands, or the Extron Audio Products Control Program, wait at least 10 seconds after making those changes before disconnecting power to the RAC 104. Failure to observe the 10-second timeout may result in those adjustments not being saved. 2-8 RAC 104 • Installation and Operation Front Panel Controls AUDIO CONTROLS ADJUSTMENTS AB VOL 13 BASS VOLUME & TONE CONTROLLER 2 4 TREBLE RAC 104 2 31 4 1 2 Power LED — Lights to indicate that the RAC 104 is on. Channel selector buttons and LEDs — The RAC 104 has two channel selector buttons, one for channel group A (channels 1 and 2) and one for channel group B (channels 3 and 4). Press and release these buttons to select the channel(s) to adjust. When a channel is selected, the corresponding LED lights. Pressing the buttons repeatedly cycles through four possible selections: Both LEDs on — both channels selected (tied, for stereo audio) When both channels in a group are selected, they will be tied togther once the user turns the adjustment knob. The RAC 104 automatically sets both channels to the same volume and tone levels and any future changes will affect both channels simultaneously. To cancel a tie, press and release the channel selector button again and then turn the adjustment knob. See “Channel ties” in this chapter for more information. LED 1 (or 3) on — mono channel 1 (or 3) or the left stereo channel selected LED 2 (or 4) on — mono channel 2 (or 4) or the right stereo channel selected Both LEDs off — no channel selected Groups A and B cannot be adjusted at the same time. Pressing the button for one group will cause the LEDs for the other group to turn off. RAC 104 • Installation and Operation 2-9 Installation and Operation, cont’d 4 3 Adjustment selector button and LEDs — Press and release this button to select volume, bass, or treble adjustment. When an adjustment is selected, the corresponding LED lights. If after 10 seconds you do not make any other adjustments or selections on the front panel, this selector will default to volume. The adjustment selector button will not function unless you have first selected one or more channels (see above). 2 , Adjustment knob — Turn this knob to adjust the volume, bass, or treble for the channel(s) you selected using the channel selector buttons. When you reach the upper or lower limit of the allowable adjustment range, the adjustment selector LED flashes three times. (See chapter 3, “Remote Control”, for instructions on setting volume and tone limits.) The volume adjustment is speed sensitive. Turn the knob quickly to make coarse volume adjustments or slowly to make fine volume adjustments. Channel ties The user can tie the two channels in a group together for stereo audio. Creating a tie To tie channels together: 1. Press the channel selector button until both LEDs are on. 2. Press the adjustment selector button to select either volume, bass, or treble and turn the adjustment knob in either direction. The RAC 104 automatically sets both channels to the same volume or tone level using the following criteria: For volume — The unit changes the volume setting for the channel with the highest volume to match that of the other channel. For example, if the volume on channel 1 is set to 85 and the volume on channel 2 is set to 50, the unit will change channel 1’s volume setting to 50 when the user ties them together. Channel 1 Channel 2 Volume before tie: 85 50 Volume after tie: 50 50 For bass and treble — The unit changes the tone setting for the channel with the tone setting farthest from 7 (0dB) to match that of the other channel. 2-10 RAC 104 • Installation and Operation For example, if the treble on channel 1 is set to 6 and the treble on channel 2 is set to 10, the unit will change channel 2’s treble setting to 6 when the user ties them together. Channel 1 Channel 2 Treble before tie: 6 10 Treble after tie: 6 6 Volume, bass, treble, and mute adjustments can now be made to both channels simultaneously. The user can continue to adjust the gain settings independently using the SIS or the Windows-based control program via the RS-232 connector (see chapter 3 for more information). Ties can also be made using the SIS or the Windows-based control program (see chapter 3...
Эта инструкция также подходит к моделям:Ресиверы и усилители - RAC 104 (1.03 mb)