Section 6 - DVD5 Media, Outputs and Connections:
6.1 6.2 6.3 DVD5 Media Video Outputs Audio Outputs
Section 15 - AV2 Basics and Quick Setup:
15.1 Switching On and Off 15.2 Input Setup Routine 15.3 Speaker Setup Routine

Section 7 - DVD5 Setup:

7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.10 Initial Video Options On Screen Display and Interface DVD5 Playback Setup System Setup Video Setup High Definition Video Setup Audio/AV2 Setup (AV2 and Multi-channel Card) Speaker Setup (AV2 and Multi-channel Card) Parental Control Setup DVD5 Menu Defaults
Section 16 - AV2 Inputs and Interfaces:
16.1 AV2 Input and Interface Connections
Section 17 - AV2 Outputs and Interfaces:
17.1 AV2 Output and Interface Connections
Section 18 - AV2 Detailed Setup:
18.1 Input Setup Routine 18.2 Speaker Setup Routine
Section 19 - AV2 Operation:
19.1 19.2 19.3 19.4 19.5 19.6 Input Selection and Volume Control Decode Modes - Selection and Availability Channel Schemes and Speakers Decode Table - Selection, Availability and Display Decode Table - Decode Modes and Channel Schemes Surround Encoding - Technology
Section 8 - DVD5 Operation:
8.1 8.2 Playback Control Playback Options
Section 9 - DVD5/AV2 Integration:
9.1 9.2 9.3 Integrated System Standby Automatic Switching Volume Control

19.7 Accessory Functions

Section 10 - NARCOM DV Handset Section 11 - DVD5 Connections:
11.1 DVD5 Rear Panel 11.2 DVD5 Connected To AV2
Section 20 - NARCOM AV Handset Section 21 - AV2 Setup Defaults:
21.1 Input Defaults 21.2 Speaker Defaults 21.3 Restoring Defaults
Section 12 - DVD5 Trouble-shooting Section 13 - DVD5 Specifications Section 14 - Video Formats Explained:
14.1 Video Display - Interlaced and Progressive Scan 14.2 Video Interface Formats
Section 22 - AV2 Connections:
22.1 AV2 Rear Panel 22.2 Stand-alone AV System 22.3 AV Integrated With Two-channel System
Section 23 - AV2 Specifications
6 DVD5 Media, Outputs and Connections

6.1 DVD5 Media

The DVD5 supports NTSC and PAL DVD, Red Book Audio CD, DVD-A Stereo, DVDR, DVDRW, CD-R, CD-RW and copy protected Audio Discs. With the addition of the Multi-channel Card upgrade DVD-A multi-channel is also supported. Note: The large variety of disc manufacturing processes and formats now available means that on rare occasions a disc falling into the one of the above categories may still not play correctly. You should return the disc to the retailer if this occurs. DVD region coding is sales territory dependent and is specified on the rear panel of the player.

7 DVD5 Setup

Once connected to a display and audio system the DVD5 must be set up appropriately before use.
The player will switch on initially in standby mode with a flashing display indicator. When the indicator stops flashing the player is ready for use. A single press on the front panel or handset play or stop buttons, or on the handset standby or open keys will wake the player. To switch the player into standby mode, press and hold the front panel play and stop buttons, or press the handset standby key. Note: Standby mode reduces power consumption when the player is not in use.

6.2 Video Outputs

The DVD5 can provide video outputs in a number of different formats on a variety of connection sockets. Each format and socket is appropriate for alternative display types - TV, CRT Monitor, TFT Monitor, Plasma, Projector, etc - and it is important for the best picture quality that the appropriate socket is used. Table 6.4 below lists, in order of preference, connection formats for any display device. Select, from the connection options available on your display, the one nearest the top of the list.
7.1 Initial Video Options
As the display on the player itself provides only minimal information during set up, the video display should be switched on and the appropriate channel selected so that the playergenerated On Screen Display is available. Two initial set up options may however need to be adjusted before the display will operate correctly. These options select between NTSC or PAL, and between Video Colour Format options. The default state for the NTSC/PAL option is auto. The Video Colour Format options only apply to the players BNC output sockets, the options being RGB, RGBHV, YPbPr and YPHV (YPbPrHV). The default state is YPbPr. To change the NTSC/ PAL and Video Colour Format settings proceed as follows below.

6.3 Audio Outputs

The DVD5 provides digital audio output via both coaxial and optical connectors. There are two coaxial and two optical connectors on the DVD5 rear panel. Each carries the same signal. Digital audio should be connected to either the coaxial or optical input of an appropriate AV processor. The coaxial option is likely to give better results. Stereo analogue audio output is available on both DIN and RCA-Phono sockets. Multi-channel audio, available when the Multi-channel Card is fitted is delivered via a pair of five pin DIN sockets. Note: The analogue audio signal available from the SCART interface is not of optimum quality and is only suitable for uncritical monitoring, setup or diagnostic use.

7.1.1 NTSC or PAL Video Selection
With the player stopped (or no disc is loaded) switch between NTSC, PAL and auto video output by pressing and holding the front panel next button. While the current selection is displayed, further presses of the next button will select the alternatives. The display reverts to normal automatically if no further changes are made. Note: NTSC/PAL selection is only likely to require a specific choice (i.e not auto) if your display is not capable of displaying both formats.

Table 6.4

Preferred Video Connections
Rank Order 9 Connection Format DVi RGBHV RGB YPbPr HV YPbPr RGB YPbPr S-Video Composite Cable/Socket Type DVi 5 x BNC 3 x BNC 5 x BNC 3 x BNC SCART SCART 4-pin mini DIN SCART Notes Digital Progressive Scan Analogue high definition Progressive Scan Analogue high definition Progressive Scan Analogue high definition Progressive Scan Analogue high definition Progressive Scan Analogue Interlaced Analogue Interlaced Analogue Interlaced Analogue Interlaced
7.1.2 Video Colour Format Options
With the player stopped (or no disc is loaded) switch between Video Colour Format options by pressing and holding the front panel prev button. While the current selection is displayed, further presses of the prev button will select the alternatives. The display reverts to normal automatically if no further changes are made. A naim logo visible in the centre of the display screen will confirm that the initial video options are set correctly.
Note: Section 14 of this manual carries an explanation of the video formats listed. Note: RGB and RGBHV progressive scan output is disabled when replaying Macrovision encoded material.
7.2 On Screen Display and Interface
Once the initial video options are set, the remaining DVD5 setup options must be set from the remote handset using the On Screen Display. To begin the setup procedure insert a DVD and, after waiting for the player to read the disc contents, press the remote handset setup key. The top level setup menu will be displayed with the upper left option selected. To navigate through the top level and second level menus use the handset up (5) and down (6) keys. To confirm a selection press the ok key. To return to the previous menu without making a selection or a change use the rtn (return) key, or press setup to exit from the setup menus. To navigate through the third level menu use the handset left (3) and right (4) keys. To increase or decrease a parameter value use the up (5) and down (6) keys respectively. To return to the previous menu without making a selection or a change use the rtn (return) key, or press setup to exit from the setup menus. The top level setup menu provides access to DVD Playback, System Setup, Video Setup, High Definition Video Setup, Audio Setup and Parental Control options. Note: The handset clear key can be used at any time to clear any on screen information.

7.5.4 Test Patterns

Provides three display Test Patterns intended to help calibrate the player and display combination and ensure optimum performance. The Test Patterns are primarily intended for advanced users or video service engineers. Make a note of all display and DVD5 settings prior to making any adjustments, and ensure the display user manual is available for reference. Note: It is not always necessary to make calibration adjustments based on the test patterns. The DVD5 and display default settings will in the majority of cases provide excellent results. Note: Help text for each test pattern is available by pressing the handset menu key. Note: The player must be in stop mode to display the test patterns.

7.6.1 Colour Format

The Colour Format sub-menu enables selection of the video signal Colour Format (RGB, YPbPr, etc). The options available will depend on the selection made in the previous menu. Note: The various video colour formats are explained in Section 14 of this manual.
7.6.2 Motion Compensation
Motion Compensation is a function of progressive scan video processing that overcomes the visible artifacts that can result when interlaced video data (see Section 14) is de-interlaced for conversion to progressive scan. If a video scene contains elements in motion, the two fields of an interlaced image cannot simply be combined for progressive scan as the time delay between the fields will result in visible distortion of the moving image - it will appear jagged. Motion Compensation overcomes the distortion by dynamically interpolating between differences in the fields of data. If there is no movement in a scene however, the interpolation may result in a loss of image sharpness. The Motion Compensation menu provides three options - none, adaptive and full. Selecting none disables Motion Compensation, selecting adaptive applies Motion Compensation dynamically depending on the intensity of movement in the scene, and selecting full applies Motion Compensation to all programme material. Adaptive should be selected for the majority of programme material. Full or none may be appropriate to material featuring intense motion, or still images respectively. The picture adjustments common to High Definition outputs are Vertical Offset, Horizontal Offset and YC Delay. The Offset adjustments enable the picture to be properly centred in the display screen. YC Delay adjustment provides compensation for the timing errors that can occur between the colour and brightness elements of a video signal. Errors are most likely to be visible if the player is required to carry out intensive processing to generate a display signal. YC Delay is best left at its default adjustment unless picture abnormalities that cannot be corrected by any other means are apparent. Note: Offset and YC Delay adjustment made from this menu will also be reflected in the players DVI output. Note: No picture adjustment is available on the players SCART and S-Video outputs.

8.1.3 Next Chapter (or track)
Front Panel: Press the next button once. Handset: Press the next key once.
8.1.4 Previous Chapter (or track)
Front Panel: Press the prev button once. Handset: Press the prev key once.

8.1.5 Pause/Resume

Front Panel: Press and hold the play button. Handset: Press the pause key once. Note: The front panel pause indicator will flash when playback is paused.
8.1.6 Single Frame Advance
Front Panel: Press the play button once while player is paused. Handset: Press the play key once while player is paused.

8.1.7 Fast Forward

Front Panel: For 2 X speed press and hold the next button while play is under way. Subsequent presses of the next button will cycle through 4 X, 8 X, 16 X, 30 X, 60 X (for DVDs) or 4 X, 8 X, 16 X and (for CDs). To resume normal play scroll through to play speed or press play on the front panel or handset. Handset: Press the ffwd (8) key once for 2 X speed. Subsequent presses generate fast forward speeds as described above.

8.1.8 Fast Reverse

Front Panel: For 2 X speed press and hold the prev button while play is under way. Subsequent presses will cycle through 4 X, 8 X, 16 X, 30 X, 60 X (for DVDs) or 4 X, 8 X, 16 X (for CDs). To resume normal play scroll through to play speed or press play on the front panel or handset. Handset: Press the frwd (7) key once for 2 X speed. Subsequent presses generate fast reverse speeds as described above.
8.1.9 Slow Forward/Reverse (DVDs only)
Handset Only: Press the slow key once for half speed playback followed by the ffwd (8) and frwd (7) keys to select further slow forward or reverse speed options.

8.2 Playback Options

8.2.1 Camera Angle
Handset Only: Press the angle key to scroll through the available camera angle options. Note: This function can also be accessed via the main setup menu.
8.1.10 Drawer Open and Close
Front Panel: To open the drawer press the stop button when the player is stopped. When open, press the stop or play buttons to close the drawer. Handset: Press the open key to open or close the drawer, or the play or stop keys to close the drawer.

8.2.2 Subtitle

Handset Only: Press the subt key to scroll through the available subtitle options. Note: This function can also be accessed via the main setup menu.

8.1.11 Repeat

Handset Only: Press the rpt key to set a repeat start point and again at the desired time to set a repeat end point. The player will continuously repeat the programme between the two selected points. Press rpt a third time to cancel. Press and hold the rpt key to access the repeat disc mode. While the repeat disc status bar is showing press the rpt key to cycle through and select repeat disc, repeat title and repeat chapter functions.

8.2.3 Audio Track

Handset Only: Press the audio key to scroll through the available audio tracks. Note: This function can also be accessed via the main setup menu.
8.1.12 Direct Track/Chapter, Title/Group Selection
Front Panel: To select a specific track or chapter while a disc is loaded simply press the appropriate handset numeric key. To select a title or group add a zero before the number.
8.2.4 Information Display
Handset Only: Press the disp key to scroll through title and chapter information (or track information for CDs), elapsed time, time remaining and display off modes. Information display will always be momentarily reinstated when significant status information changes.

8.1.13 Mem Function

Handset Only: The mem function allows the user to store and recall a specific point on a maximum of five discs. To store a mem bookmark press and hold the handset mem key at the desired time point. To recall a bookmark, with the bookmarked DVD loaded, press the handset mem key. The DVD will jump to the bookmarked point.

8.2.5 Zoom Function

Handset Only: Press the zoom key to scroll through the available zoom levels. Use the arrow keys (3456) to navigate around the picture.
8.2.6 Colour Format (RGB/RGBHV/YPbPr/YPbPrHV)
Front Panel Only: To show the current colour format press and hold the prev button while the player is stopped. While the current mode is still showing further presses of the prev button will show the alternatives. The display reverts to normal automatically if no further changes are made. Note: This function can also be accessed via the main setup menu.
8.2.7 Output Format (PAL/NTSC/Auto)

OSD menu interface

9.2 Automatic Switching
The AV2 can be set to switch to an appropriate input when specific types of disc are loaded into the DVD5. To enable automatic switching the AV2 inputs must simply be labelled appropriately. To auto switch the AV2 to a digital input when a DVD or DTS-CD is inserted, label any ONE of the following inputs DVD: OP1, OP2, CO1 or CO2. To switch to an analogue input when a DVDA or CDDA is inserted, either set the versatile inputs to multi mode or any analogue input label to CD. If the versatile inputs are multi-channel and another analogue input is labelled CD then AV2 will switch to the versatile multi input.
Player transport DVD functions AV2 functions

9.3 Volume Control

To prevent the on-screen display volume bar from appearing at every volume adjustment press and hold the handset return key while the DVD is stopped. Repeat to re-enable the volume bar.

11 DVD5 Connections

11.1 DVD5 Rear Panel
external comms in external comms out analogue audio out analogue audio out 1 - front, surround analogue audio out 2 centre, sub-woofer, rear s-video out DVI video out

mains input

external digital control audio out input (coax)
digital audio out (optical)

region coding label

high definition BNC analogue video out
high definition BNC analogue video sync out
SCART analogue audio/video out
Note: The centre, sub-woofer, surround and rear analogue audio outputs are only operational with the McC upgrade fitted. Note: The RCA Phono analogue audio outputs are duplicates of the DIN Audio Out 1 front channel outputs. They should not be connected simultaneously. Note: The external comms sockets enable connection to custom install RS232 controllers. Please contact your dealer for a DB9 adaptor lead. These sockets are not intended for direct connection to computer networks.

DIN Audio Out 1

front ch1 ch2 -ve surrd ch1 ch2

DIN Audio Out 2

cent sub -ve rear ch1 ch2
11.2 DVD5 Connected to AV2
mains input RCA Phono cable

Cat-5 interface cable

mains input cable direction marker DIN Interconnect Cables to 5 pin DIN

12 DVD5 Trouble-shooting

The following list of typical problems, and their solution may help smooth DVD5 installation.
Green tint to image. The player is set to YPbPr mode and the display is set to RGB mode. Pink tint to image. The player is set to RGB mode and the display is set to YPbPr mode. Image has jaggies on diagonals. De-interlacing is turned off. Turn on the de-interlacer options. Image has jaggies on horizontals. The player is transcoding from PAL to NTSC or NTSC to PAL. Set video output to auto or PAL/NTSC to match the format recorded on the DVD being watched. Player not responding to Handset. Batteries are discharged? Handset is set to the wrong mode. Press the handset dvd key. Video quality is poor using SCART. SCART has two video signals, composite and YPbPr/RGB. The display device may be set to composite. Note: Progressive scan video is only available via the BNC or DVI connections. The picture disappears when play is selected. i) The video outputs are switched off (see Section 7.5.7). ii) A Macrovision encoded disc is loaded and the display is connected via RGBHV. No picture when using DVI. The display is not HDCP compliant. To meet DVD licensing requirements the DVI output is content protected using HDCP. The display will need updating. Display is too far from the DVD player to use DVI. Optical DVI leads up to 500 metres are available. Video will not sync using the BNC connections. The video output is set to RGBHV mode and the display is set to RGB mode. HV are the horizontal and vertical sync pulses. In RGB and YPbPr modes the sync pulses are added to the Green (G) signal or Luminance (Y) signal in YPbPr mode. Note: Some display devices cannot display PAL progressive. No colour on s-video or composite. The DVD is set to NTSC and the display is set to PAL. No DVI input available on the display, only HDMI. DVI to HDMI adapters are available from good cable suppliers.

14.2.8 Progressive Scan DVI (DVI multi-pin, Digital)
The DVI interface provides the greatest potential video quality. DVI is a direct digital connection for digital displays (LCD, Plasma etc) and analogue displays with internal digital to analogue converters. With DVI and a digital display, no downstream decoding or signal conversion is required so the display quality potentially matches that inherent in the source material. The DVI output is HDCP (High-bandwidth Digital Content Protection) encrypted and only compatible with HDCP capable displays (the majority of computer DVI displays are not HDCP capable). HDMI (High Definition Multimedia Interface) compatible displays can be used with the DVD5 via an adaptor cable.
15 AV2 Basics and Quick Setup
Installation of the AV2 requires two setup routines to be carried out - input setup and speaker setup. These routines configure the AV2 for the source equipment and loudspeakers it is to be used with and specify some signal decoding options. Some parameters depend on the state in which the AV2 was last switched off so setup may be simplified if the AV2 is returned to its setup defaults. See Section 21 for notes on restoring setup defaults.
15.1 Switching On and Off
To wake AV2 from standby (power switch on). Handset: Press standby. Front panel: Press and hold input or mode. To put AV2 to sleep (power switch on). Handset: Press standby. Front panel: Press both input and mode. standby

Or And

standby
Note: The diagrams provide a short-cut through the setup routines. They can also be used in conjunction with the detailed notes in Section 18 where setup choices and display legends are explained in greater depth.

15.2 Input Setup Routine

To enter setup mode. Handset: Press menu followed by i/p5. Front panel: Press and hold input. To scroll up or down parameter list. Handset: Press 25 or 86. Front panel: press input or mode. To Adjust setting. Handset: press 34 or 64. Front panel: rotate rotary control. menu i/p5

Or Or Or

Setup Parameters
Versatile Analogue Input 1 (select source, multi)

Parameter Settings

Vi1 Versatile Analogue Input 2 (select source, multi) V i 2 Analogue Input 3 (select source) A N 3 Analogue Input 4 (select source) A N 4 Analogue Input 5 (select source) a n 5 Analogue Input 6 (select source) a n 6 Optical Digital Input 1 (select source) o p 1 Optical Digital Input 2 (select source) o p 2 Coaxial Digital Input 1 (select source) c o 1 Coaxial Digital Input 2 (select source) c o 2 Remote Control e x t Dolby Surround Pro Logic II Panorama P a n Dolby Surround Pro Logic II Centre Width w Dolby Surround Pro Logic II Dimension D DTS Neo:6 Centre Gain N E O Lip Sync adjustment (milliseconds) SY N
To exit setup mode. Handset: Press menu followed by i/p5. Front panel: Press and hold input. menu i/p5
8 ch. a n 1. s c d ---.an2.scd ---.an3.scd ---.an4.scd ---.an5.scd ---.an6.scd - - -. o p 1. s c d ---.op2.scd - - -. co 1. s c d - - -. co 2. s c d rc 5 dat off on 00 - - - 0 - 15 0
Note: Analogue inputs 1 and 2 can be combined to provide one 8 channel or 6 channel input. In either case input 2 is then unavailable. For a complete description of this facility see Sections 16 and 18. Note: With DAT (data) selected for the EXT parameter RC5 (remote handset) control is disabled. RC5 can be re-enabled using the front panel controls. Note: The Panorama, Centre Width and Dimension stages of the input setup routine provide adjustment for three Dolby* Surround Pro Logic II music programme decode parameters. It is not necessary to set these parameters initially. See Section 17 for detailed information on these decode parameters.
15.3 Speaker Setup Routine
To enter setup mode. Handset: Press menu followed by mode5. Front panel: Press and hold mode. To scroll up or down parameter list. Handset: Press 25 or 86. Front panel: press input or mode. To Adjust setting. Handset: press 34 or 64. Front panel: rotate rotary control. menu mode5
LR Centre Speaker (presence, size) c e n Surround Speakers (presence, size) s u r Extra Rear Speakers (presence, quantity, size) e R Sub-woofer (presence) s u b Sub-woofer filter cut-off (frequency) S B F Speaker Distance Units (feet, metres) u n t Left Main Speaker (distance) l Centre Speaker (distance) c e n Right Main Apeaker (distance) r Right Surround Speaker (distance) r s Right Extra Rear Speaker (distance) r r Left Extra Rear Speaker (distance) L R Left Surround Speaker (distance) l s Sub-woofer (distance) s u b Test Signal (off, on) t s t Main Left Speaker (level trim) l Centre Speaker (level trim) c e n Main Right Speaker (level trim) r Right Surround Speaker (level trim) r s Right Extra Rear Speaker (level trim) r r Left Extra Rear Speaker (level trim) L R Left Surround Speaker (level trim) l s Sub-woofer (level trim) s u b

17 AV2 Outputs and Interfaces
The AV2 is fitted with line-level signal output sockets for front left and right, centre, surround left and right, extra rear left and right and sub-woofer channels.
The front, centre, surround and extra rear outputs are connected through 4-pin DIN sockets and each of these should be routed to appropriate Naim power amplifiers. The sub-woofer output is connected through a single phono socket and should be connected to either an active sub-woofer or a mono power amplifier driving a passive sub-woofer. An alternative sub-woofer output is available on the centre output socket. The AV2 is also fitted with both analogue and digital audio outputs. These outputs duplicate the selected input signal in either the analogue or digital domain. No signal will be present on the analogue output if a digital input is selected and similarly no signal will be present on the digital output if an analogue input is selected. The analogue outputs can be used to restore the amplifier tape monitor outputs if these have been used as a signal source for the AV2. An interface connector fitted to the AV2 enables integration with Naim DVD players. The interface is connected via a telecoms style socket.On-screen display (OSD) of AV2 operational and setup commands will be available if a DVD player is connected. The interface socket should not be used for any other application. Inappropriate use may cause damage to the AV2 or other equipment to which the socket is connected. The multi-room interface socket is a 9-pin RS232 type connector. Multi-room interface functions of the AV2 will depend upon the capabilities of the multiroom system and controller in use. Your local Naim Audio representative will be able to offer advice on multi-room features. Each output socket and its appropriate connection is detailed in table 16.1. See the illustration in Section 22 for socket and pin identification.
Table 16.1 AV2 Input and Interface Connections
Input V1 Type Analogue Socket 5 Pin DIN Connect
Line-level stereo signal from source component. (Combined mode: Left main, Right main, Left surround, Right surround.) Line-level stereo signal from source component. (Combined mode: Centre, Sub-woofer, Extra rear left, Extra rear right.) Line-level stereo signal from source component. Line-level stereo signal from source component. Line-level stereo signal from source component. Line-level stereo signal from source component. Digital audio source Digital audio source Digital audio source Digital audio source RC5 relay unit

Analogue

5 Pin DIN
Analogue Analogue Analogue Analogue Digital Digital Digital Digital RC5
5 Pin DIN 2 x Phono 2 x Phono 2 x Phono 1 x Phono 1 x Phono Optical Optical 1 x Phono
Note: The 5 Pin DIN socket of Input 3 also carries stereo audio outputs. Input 3 should be used to connect the AV2 to an existing Naim system. Note: The digital optical input sockets are fitted with protective plugs that must be removed before use.

18.1 Input Setup Routine

The first AV2 setup page and routine defines the type of source equipment connected to each input and enables a remote control input function to be selected. To switch the AV2 into Input Setup mode press the menu key followed by the i/p5 key (front panel: press and hold input button). The complete list of source component display options available is as follows: DVD (DVD video/audio), LD (laser disc), TV (television), SAT (satellite), CAB (cable service), HDR (hard disk recorder), VCR (video cassette), GM (game console), PC (personal computer), PRE (audio preamp), CD (compact disc), CDR (compact disc recorder), TUN (tuner), DAB (digital tuner), MD (mini disc), DAT (digital audio tape), TAP (audio tape) AUX (auxiliary), DVA (DVD audio) SCD (super audio compact disc). The following order of setup steps is arbitrary. It is possible to move between setup steps by pressing 25 or 86 (front panel: mode or input buttons).

18.1.1 Input V1

The AV2 display will show VI1 on the left hand side and 6CH, 8CH, ---, AN1 or one of twenty possible source component types on the right hand side. VI1 refers to Versatile Analogue Input 1 and the right hand options to the type of source component connected to the input. --- denotes an input set as unused. The 6CH and 8CH options re-configure the DIN socket input connectors 1 and 2 to offer a combined set of analogue inputs routed direct to the AV2 output volume control and output channels. Use the 34 or 64 keys (front panel: rotate rotary control) to select the option appropriate for the source component connected to the input(s). Move to the next step by pressing 86 (front panel: mode button). Note: If you wish not to specify a specific source component for any input, the right hand side of the display can either be left at its default setting, or be set to unused by selecting ---. Inputs set to --- will not appear for selection when in the AV2 is used in operational mode.
Note: Any three inputs can have a user-defined label of up to seven characters stored. To define a user label, first select the input to be named, say AN1-CO2, ensuring that it is set to its default label, then press and hold either the handset OSD key or both the front panel input and mode buttons. A line of seven dashes will appear in the display. Using the front panel input and mode buttons and the rotary control replace each dash with the desired letter or symbol. Press and hold the handset disp key to clear any stored label. Exit from user label definition by pressing and holding either the handset OSD key or both the front panel input and mode buttons. On exit the inputs default label will change to, say AN1-USR to denote that a user label has been applied. The user label itself will display when the input is selected. Note: Using inputs One and Two in combined mode enables the connection of source components that may already offer multichannel outputs - DVD Audio and Super Audio CD for example. When operating in combined mode the input channels available on the two DIN sockets are routed, via the AV2 output volume control, direct to the output connectors bypassing any internal signal decoding processing. material. These parameters need not be changed from their default settings during Input Setup but may be adjusted as required when appropriate programme material is used.

Note: The continual development of decoding technologies means that your AV2 may offer and display some further or alternative decode options. If this appears to be the case please visit www.naim-audio.com and download the latest AV2 manual.

neo:6 auto 3/2.1

auto 2/0

auto 3/2.1

auto ES-disc

ES-mtrx stereo

Table 19.5
Decode Modes and Channel Schemes
Decode Mode Direct Mono Stereo Dolby PL II Music Dolby PL II Movie Dolby Digital Surround EX DTS Neo:6 Cinema DTS Neo:6 Music DTS Neo:6 Auto Maximum Speaker Channels Left Front Centre Right Front Left Surround Right Surround Extra Rear Sub-Woofer
= = = = = = = = = = = = = = = = =
= = = = = = = = = = = = = = = = = = = = = = = = = = = =(Note 2) =(Note 1) =(Note 1) =(Note 1) =(Note 1) = =(Note 1) =(Note 1) = =(Notes 1 & 2)
Note 1: The sub-woofer channel will only operate if Bass Mix is selected (see Section 19.7.2). Note 2: Operation of these channels will depend on the specific source material format.
19.6 Surround Encoding - Technology
Some feature films have carried the multi-channel sound tracks necessary for surround sound since the 1950s. But only since the mid 80s has surround sound been available to domestic consumers. The technology that first enabled four channels of audio to be decoded from the stereo soundtrack of consumer media such as video cassette is Dolby Surround Pro Logic. Since Dolby Surround Pro Logic, and especially following the introduction of digital products such as DVD, enhanced encode and decode technologies have been introduced that enable a greater number of higher quality channels of audio to be encoded. With digital encoding techniques such as Dolby Digital and DTS Surround, appropriately encoded feature films, music and even computer games can be reproduced in fullbandwidth surround sound with up to eight audio channels (left, right, centre, surround left, surround right, surround extra, lowfrequency effects). The following few paragraphs provide a short description and explanation of each decode technology and mode available on the AV2. Further technical information can be found at www.dolby.com and www.dtsonline.com

19.6.2 Dolby Surround Pro Logic II
Dolby Surround Pro Logic II is an improved analogue matrix technology that provides improved surround performance on Dolby Surround encoded program material. While earlier surround programme material is fully compatible with Pro Logic II, appropriately encoded soundtracks can take full advantage of its enhancements - which include separate full bandwidth left and right surround channels. Pro Logic II also features two distinct decoding options for music and movie programme material.

19.6.3 Dolby Digital

Dolby Digital is a fully digital decoding technology that provides three full bandwidth front channels, two full bandwidth surround channels, and one low-frequency effects channel - a channel scheme known generically as 3/2.1 (or 5.1). The encoding technique for Dolby Digital, known as Dolby AC-3, has since 1995 been used on many Video Laser Discs and more recently on DVD. Dolby AC-3 encoding can also be found on digital television services. In addition to encoding audio for six channel replay, Dolby AC-3 incorporates compression techniques that ease audio data storage and transmission demands and can enable, for example, a single DVD to carry a complete movie.
19.6.1 Dolby Surround Pro Logic
Dolby Surround Pro Logic is a matrix decoding process that generates four output signals (left, right, centre, surround) from a Dolby Surround encoded analogue stereo input signal. It is built into virtually every home theatre audio system. The nature of Pro Logic decoding constrains the single surround channel to relatively narrow bandwidth.

19.6.4 Dolby Digital 2/0

A variation of Dolby Digital 3/2.1 is Dolby Digital 2/0. Dolby Digital 2/0 takes advantage of Dolby AC-3 data compression in order to reduce the data storage demands of stereo programme material. The 2/0 denotes the use of just two main audio channels with no low frequency effects channel. Programme
material encoded for a 2.1 (two main channels with one subwoofer channel) channel scheme is also available and can be handled within Dolby 2/0 decoding.
The AV2 has six accessory functions accessible at all times from the handset. The AV2 display will temporarily indicate selection or de-selection of these functions.