User manual NAIM NAC 42-5

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Manual abstract: user guide NAIM NAC 42-5

Detailed instructions for use are in the User's Guide.

[. . . ] One end of each cable is marked with a band to establish its correct orientation. Naim loudspeaker cable is correct for your system and your dealer will make up leads to suit your equipment installation. The leads should each be at least 3. 5 metres long and of equal length. Loudspeaker leads are, like interconnect leads, directional, and should be connected so that the printed arrow points towards the speakers. [. . . ] Note: It is possible to lock the record controls and prevent accidental de-selection during recording. Record-lock is switched on or off by depressing the source mono button four times within six seconds. 10. 3 automatic input switching The NAC 282 incorporates an optional automatic input switching feature which can select the appropriate input as soon as any handset function for a particular Naim source component is operated. For example, if the tuner input is selected on the NAC 282 and the CD play key is operated on the handset, the NAC 282 will automatically switch to the CD input. Automatic input switching can be programmed to operate independently on any combination of the CD, AV and Tuner input buttons. To enable automatic input switching, first switch the NAC 282 into program mode as previously described. The front panel source mono button will illuminate if automatic switching is already enabled. If it is not enabled it can be switched on by pressing the source mono button twice. With auto switching enabled, pressing the source mono button will reveal the inputs selected for auto switching by their button indicators illuminating for a short time. Repeated operation of the source mono button will sequentially select each combination of CD, Tuner, AV inputs, and auto switching disabled (CD, Tuner and AV button indicators off). When the desired inputs selected for auto switching are indicated, stop pressing the source mono button. The remote handset mono (Flash) or mon (Narcom 3) key can also be used to set up automatic source switching. A quick press and release of a key followed by press and hold will cause continual slow adjustment. Simple press and hold will cause continual fast adjustment. 10. 6 mute and mono Mute and mono functions can be controlled independently for source and record signals via the buttons to the left of the two banks of source and record selection buttons. Mute silences the output signal, while mono sums the left and right channels. 10. 7 display The NAC 282 front panel button display can be switched off by pressing the remote handset (in preamplifier mode) disp function. Any subsequent handset or front panel operation will temporarily restore the display. A second operation of the disp function will permanently restore the display. 13 NAC 282 Connections 11. 1 Front source selectors volume balance mono mute record selectors 11. 2 Rear in 5 in 6 aux 1 aux 2 Power supply/output option sockets with link and blanking plugs fitted to NAPSC rc5 control in in 1 cd in 2 in 3 tuner tape in 4 a/v signal in 6 (alternative) ground cd phono ch 1 ch 2 aux 2 phono ch 1 ch 2 to power amplifier with internal power supply optional RS232 data port Inputs 1, 2 & 6 ch1 in ch 2 in -ve Inputs 3, 4 & 5 ch1 in ch 2 in -ve ch1 out ch2 out Input 6 (alternative) +ve ch 2 +ve ch1 Note The NAC 282 AUX 2 input is provided with two sockets. The lower socket, fitted on delivery with a blanking cover, is intended for use with a Stageline or Prefix phono stage and incorporates an appropriate DC power supply. The two sockets must not be used simultaneously. -ve Specifications NAC 282 and NAPSC Input sensitivities: Overload margins: Main output level: Tape output level: Auxiliary power outputs: 75mV, 47k 40dB (all inputs all audio frequencies) 0. 775V, <50 75mV, 600 To suit Naim Stageline phono stage, or Headline headphone amplifier. 230V - 50/60Hz Case size (H x W x D): Mains Supply: (NAPSC) 14 NAC 282 Connections 11. 3 NAC 282 connection to Hi-Cap power supply to NAPSC NAC 282 to stereo power amplifiers cable direction marker HI-CAP Interconnect Cables 4 to 4 pin DIN 240° 5 to 5 pin DIN mains input additional signal output to mono or dual mono power amplifiers 11. 4 NAC 282 connection to Supercap power supply to NAPSC NAC 282 Note NAC 282 can also be powered by two Hi-Cap supplies. In this case they are connected to the same sockets as the two Supercap power supply cables. additional signal output SUPERCAP mains input to stereo power amplifiers to mono or dual mono power amplifiers 15 NAC 202 12 Installation and Operation The NAC 202 preamplifier does not incorporate an internal power supply but must be used in conjunction with either a Naim power amplifier incorporating a preamplifier power output, or with an appropriate Naim power supply. An optional separate NAPSC supply to provide power to the display and control circuits is also available. Diagram 13. 3 illustrates the NAC 202 connected to a Hi-Cap power supply. 12. 1 input socket mapping The input selector buttons select the source input signal to be routed to the power amplifier and the loudspeakers. [. . . ] Firstly, the NAC 42-5 incorporates a programmable volume control system that enables different source component output levels to be matched. Secondly, preamplifiers incorporate optional automatic input switching which will switch the input as soon as any handset key appropriate to a particular source is operated. Thirdly, if an audio-visual processor is connected to the AV input, the volume control on the preamplifier can be disabled, allowing the processor to take over control of the output level from the preamplifier stage. Use of these programmable functions is described fully in the manual section corresponding to each preamplifier. [. . . ]

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