Instruction/ maintenance manual of the product G68 Meridian
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G68 Digital Surround Controller Installation Guide G Series DSP i 31/10/03, 4:23:42 pm.
Preface ii Important safety instructions • Read the instructions . •K eep these instructions . •F ollow all instructions . • Do not use this apparatus near w ater . • Clean only with a dry cloth. • Install only in accordance with the manufacturer’ s instructions .
Contents iii Contents Introduction 1 Provides information about the digital surround controller models , a description of each product, and technical specifications .
Preface iv Copyright and acknowledgements Sales and service in the UK Meridian Audio Ltd Stonehill Stuk eley Meadows Cambridgeshire PE29 6EX England T el +44 (0)1480 445678 Fa x +44 (0)1480 445686 Sal.
Introduction 1 Product Analogue outputs Digital outputs Video switching G68D 2 unbalanced 10 digital No G68ADV 8 unbalanced 10 digital Y es G68AXV 4 balanced, 6 unbalanced None Y es G68XXV 8 balanced None Y es All versions of the G68 Digital Surround Controller include an integral FM/AM tuner and room correction.
Introduction 2 G68 Digital Surround Controller T he G68 is a powerful, flexible surround controller with a built-in AM/FM tuner , and represents the centrepiece of the G Series range , with multiple variants av ailable to suit a wide range of applications .
Introduction 3 Meridian Room Correction T he G68 includes Meridian Room Correction, accessed via the Meridian Configuration progr am. T his unique feature automatically measures room resonances using .
G68D G68AD V G68AXV G68XXV Digital inputs 6 coax digital inputs , 4 optical digital inputs , 2 6-channel coax inputs , all MHR. 6 coax digital inputs , 5 optical digital inputs , 2 6-channel coax inputs , all MHR. Analogue inputs 5 stereo unbalanced inputs; 1 6-channel unbalanced input.
Installing the digital surround controller 5 Installing the digital surround controller Unpacking T he G68 Digital Surround Controller is supplied with the following accessories: • MSR+ remote control with batteries , manual, and spare k ey caps . • Meridian Comms lead.
COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R ANALOGUE OUT MAIN OUT OPTIC OPTIC AL IN AL IN O1 O1 SA SA T T O2 O2 GAME GAME F.
Installing the digital surround controller 7 Y ou can connect up to 12 digital coax sources to the G68 Digital Surround Controller . • Connect the digital source to one of the digital input sock ets of the digital surround controller , using a 75 Ω screened coax phono lead.
Installing the digital surround controller 8 To connect to a D VD-Audio player with digital multichannel outputs (eg G98DH D VD Audio T ransport) G98DH DVD Audio T ransport 3x DIGIT AL LEADS COMMS LEA.
Installing the digital surround controller 9 To connect to a source with analogue multichannel outputs (eg SA CD or DVD-A player) SACD/DVD-A player 6x PHONO LEADS S-VIDEO LEAD DIGIT AL LEADS G68 Digit.
COPY ZONE 2 ZONE 3 DIG OUT COMMS L L R R ANALOGUE OUT OPTIC OPTIC AL IN AL IN O1 O1 SA SA T T O2 O2 GAME GAME FM FM ANTENNA ANTENNA AM AM GND GND MERIDIAN COMMS TRIGGER 1 +12V 100mA OPTIC OPTIC AL IN .
Analogue outputs COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R ANALOGUE OUT MAIN OUT OPTIC OPTIC AL IN AL IN O1 O1 SA SA T T .
MAIN L MAIN R CENTRE SUB ANALOGUE OUT SIDE L SIDE R REAR L REAR R A/B L A/B R COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R A.
REAR L REAR R SIDE L SIDE R ANALOGUE OUT COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R ANALOGUE OUT MAIN OUT OPTIC OPTIC AL I.
Installing the digital surround controller 14 To connect the G68D or G68ADV to Meridian DSP loudspeaker s DSP5000 – MAIN R DSP5000 – MAIN L 511 S-patch box DSP5000C G68D/ADV Digital Surround Contr.
Installing the digital surround controller 15 To connect the G68ADV or G68AXV to active unbalanced loudspeaker s (eg Meridian M33s) M33 M33 PHONO LEAD PHONO LEAD G68ADV/AXV Digital Surround Controller.
Installing the digital surround controller 16 To connect an active subwoofer (eg Meridian M1500 or M2500) Subwoofer PHONO LEAD G68 Digital Surround Controller SUB CROSSOVER INPUT DIRECT INPUT • Connect the SUB analogue output sock et from the G68 Digital Surround Controller to the subwoofer’ s line-level input using a phono lead.
COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R ANALOGUE OUT MAIN OUT OPTIC OPTIC AL IN AL IN O1 O1 SA SA T T O2 O2 GAME GAME F.
V ideo outputs T he following table gives details of the video outputs (G68ADV , AXV , and XXV only): Use this output T o connect to this MAIN OUT T he composite video input of a TV or monitor , using a 75 Ω coax cable with phono connectors .
To connect the G68ADV , G68AXV , or G68XXV for video switching VCR DVD player COMPOSITE OUT IN S-VIDEO OUT IN S-VIDEO OUT COMPOSITE OUT G68ADV/AXV/XXV Te levision/monitor COMPOSITE IN S-VIDEO IN COMPO.
To connect to a G98DH DVD Audio T ransport with video switching in the G68 and scaling in the G98 G68ADV/AXV/XXV A7 O1 V1 O2 PHONO LEADS VIDEO LEADS OPTICAL LEAD OPTICAL LEAD COMMS COMP HDMI DIGIT AL .
To connect the G68ADV , G68AXV , or G68XXV to an audio/video recor der or second zone Video recorder G51 Receiver Zone 3 MONIT OR IN ZONE 3 S-VIDEO IN ANALOGUE IN COMP ANALOGUE OUT S ZONE 2 ZONE 3 G68.
COPY ZONE 2 ZONE 3 DIG OUT COMPOSITE S-VIDEO S-VIDEO IN MAIN OUT COMPOSITE IN V3 CAB V4 GAME V1 VCRI V2 TV COMMS L L R R ANALOGUE OUT MAIN OUT OPTIC OPTIC AL IN AL IN O1 O1 SA SA T T O2 O2 GAME GAME F.
Installing the digital surround controller 23 To connect to other Meridian G Series , 500 Series , or 800 Series equipment COMMS COMMS LEAD COMMS LEAD G Series , 500 Series , or 800 Series unit COMMS .
Installing the digital surround controller 24 Note: Do not, under any circumstances , connect any equipment other than Meridian G Series , 500 Series , or 800 Series to any sock et mark ed COMMS on the back of the product.
Configuring the digital surround controller 25 Configuring the digital surround controller Configur ation Wizard T he Configuration Wizard leads you through the correct sequence to configure your digital surround controller .
Configuring the digital surround controller 26 T he digital surround controller provides several alternative standard settings , called T ypes , which configure all aspects of the product into the most commonly needed configurations .
T ypes T he following table lists the available Types: T ype Speakers Music Sub Logic Sub 5.1 Movie Sub 0 All analogue . LFE Centre LFE 1 All analogue . Mono Mono Mono 2 All digital. LFE Centre LFE 3 All digital, large centre . None None None 4 Digital left, right, and centre .
Configuring the digital surround controller 28 Stage 2: Configuring speak ers T he Speak ers configuration stage allows you to set up the digital surround controller for the particular arrangement of loudspeak ers in your system. To configure the speaker s Either: • Press Next after resetting the product; see page 26.
Speak er options T he following table summarises the speak er options: Option V alues Description Number of Subwoofers: none , one , two , three How many subwoofers . T he main L&R speak ers are: small analogue/THX, small DSP , large analogue , large DSP T he types of the main left and right speak ers .
Configuring the digital surround controller 30 Stage 3: Configuring sources T he digital surround controller provides up to 12 sources corresponding to the 12 source k eys on the MSR+: CD , RADIO , DVD , AUX, DISC , TAPE, TV , CABLE, SA T , VCR1, VCR2, GAME.
Source options T he following table summarises the source options: Option V alues Description T he source is: in use , not in use Whether the source is enabled.
Configuring the digital surround controller 32 T he next stage allows you to configure other aspects of the product’ s oper ation. To configure other settings Either: • Press Next after configuring the sources; see page 30. Or: • Press Wizard ; see page 25.
Configuring the digital surround controller 33 Settings T he following table summarises the product settings: Option V alues Description T uner region: Europe/elsewhere , Japan, USA Band selection (MW/L W or AM), tuning steps, and FM deemphasis standard.
Configuring the digital surround controller 34 G Series DSP 34 31/10/03, 4:24:21 pm.
Calibrating the system 35 Calibr ating the system Introduction We recommend that you perform the calibration procedure using the MSR+ and from the listening position. As you run the calibration procedure the name of each calibr ation test is shown on the front-panel display , followed by the parameters adjusted in the test.
Calibrating the system 36 To start the calibration procedure Either: • Press Next on the last option of configuring settings; see page 32. Or: • Press On/Off to put the digital surround controller into standby . • Press More . If the product is lock ed the display shows: Unlock Version • Press Unlock .
Calibrating the system 37 Levels T hese tests allow you to adjust the output level to each speak er individually , and it follows the general guidelines from Dolby Laboratories and THX. In each test the display shows the speak er being tested, and the current relative level.
• Use > and < to move between each of the speakers in the layout. T he display shows the speak er being tested, and the distance: Left Distance 18'0 Units ìî ïñ öõú óòô Press More for help • Use A and V to change the distance.
Calibrating the system 39 T hese tests allow you to determine the bass handling capability of large analogue speak ers and subwoofers . Once set, the digital surround controller will limit the bass level to protect the speak ers from potential damage .
Calibrating the system 40 T his section explains how to use the Sine/Sub/Sens controls to check for room resonances , adjust the subwoofer crossover frequency , or adjust the sensitivity of the analogue sources .
Calibrating the system 41 An 80Hz sinewave will be played through all channels . Y ou can change the test signal using the menu keys , as described in the following sections . To select the channel • Press Chan . Y ou can select any individual channel, or All Channels .
Calibrating the system 42 Setting up sources T his section explains how to use the Sine/Sub/Sens controls to adjust the sensitivity of the analogue sources . To adjust the sensitivity of a source To obtain the best signal-to-noise ratio for each analogue source you can adjust its sensitivity to give the highest level that does not produce clipping.
DSP presets T he G68 Digital Surround Controller provides two types of DSP preset. One set is available if the input is two-channel; eg from a traditional stereo source or a two-channel DVD-A. The other set is available if the input is 5.1 or 6 channels of discrete audio; eg from a Dolby Digital DVD-V or a music DVD-A.
Standard par ameters All DSP presets (except Mono and Direct) provide the following standard parameters . Individual DSP presets provide additional parameters , to allow you to adjust specific features provided by that preset. F or full details refer to information about each preset later in this chapter .
DSP presets for two-channel material T he G68 provides several signal processing options for two-channel material. T he Music DSP presets are designed for use with music from sources such as CD , radio , or two channel DVD-A: • Music, T rifield, Ambisonics , Super Stereo , Music Logic, PLIIx Music, Stereo , and Direct.
Ambisonics T he Ambisonics DSP preset can decode UHJ format, the two- channel stereo-compatible encoding found on Ambisonically- recorded discs and broadcasts . T his material is specifically encoded for surround reproduction and can give breathtakingly realistic sound when replayed using the digital surround controller .
MusicLogic DSP preset par ameters Pa r ameter Options W hat it changes Roll Off , Low , Med, Max The degree of left-right steering. Ya w Off , Low , Med, Max T he degree of front-rear steering. Steered All Steered Rear , Steered Side , Steered All Which of the four surround channels are gener ated by steering.
PLIIx Movie and PLIIx THX DSP preset parameters Pa r ameter Options What it changes Surrounds Rear , Side , All Which of the four surround channels are generated by steering. Pro Logic Off , On On selects an emulation of the original Pro Logic decoding.
TV Logic DSP preset par ameters Pa r ameter Options What it changes Roll Off , Low , Med, Max T he degree of left-right steering. Ya w Off , Low , Med, Max T he degree of front-rear steering. Surrounds Rear , Side , All Which of the surround channels are gener ated by steering.
Discrete and Cinema DSP preset par ameters Pa r ameter Options What it changes 2+2+2* Off , 5.1, Side , 7.1 Allows you to specify how DVD Audio channels 3+4 should be interpreted: Off ignores them, 5.1 and 7.1 use them for centre and LFE, Side uses them for the side speakers , 7.
THX DSP preset parameters Pa r ameter Options What it changes Surround Surr . Rear , Surr . Side , Surr . All Switches the surround signal between the side and rear speak ers .
DSP presets 52 Ambisonics T he Ambisonics preset allows you to decode multi-channel sources which have been encoded in Ambisonics B format. Ambisonics B format contains four independent channels of information to give a three-axis representation of the sound at the recording position.
DSP presets 53 T he G68 Digital Surround Controller allows you to modify any of the built-in presets , and save them for future use . Y ou can either save the changes to the built-in preset, or you can create up to 10 presets of your own, with names of your choice , so you can use them alongside the built-in presets .
DSP presets 54 F or example , you could change the name to: ìî ïñ óòô Store öõú Write label for preset Concert • When you have entered the name you want to use press Store . T he display shows: Stored ìî ïñ óòô Assign öõú To mak e the new preset the default for the current source and audio format: • Press Assign .
Tr o u b l e s h o o t i n g 55 T roubleshooting We expect you to achieve superb results with your digital surround controller . If , however , you encounter any problems , either when installing and configuring it, or during oper ation, please check the following pages for suggested solutions .
Tr o u b l e s hooting 56 Remote not working Check the following: •T he battery in the MSR+. • Remove the Comms connections from the G68 and check whether it responds now . If so , replace the connections and perform an Auto Configure procedure; see To connect to other Meridian G Series , 500 Series , or 800 Series equipment , page 23.
Tr o u b l e s h o o t i n g 57 Audible hiss at high volume settings T he input dynamic range of most current recordings is at maximum 16 bit. T he reason for this is that currently CD , DVD , and LaserDisc use a 16-bit standard, although DVD can support up to 24-bits .
Tr o u b l e s hooting 58 The preset changes unexpectedly with a multichannel source If you are using a non-Meridian source on the MHR SmartLink input, proprietary data may cause preset switching. • Select Fo r ce this source to be six-channel for the source .
Tr o u b l e s h o o t i n g 59 Maintenance Cleaning To clean the case , display panel, and keypad • Disconnect the power cord before cleaning the unit. T he exterior surfaces of Meridian G Series products are made from solid anodised aluminium, powder coated steel, thermoplastic rubber , and glass .
Tr o u b l e s hooting 60 Service and guar antee Service T he Meridian G Series of hi-fi components has been carefully designed to give years of untroubled service . T here are no user - serviceable parts inside the case , nor do the units require any form of maintenance .
Index 61 A Academy (DSP parameter) 49 accessories 5 active loudspeak ers , connecting to 15 active subwoofer , connecting to 16 Ambisonics (DSP preset) 46, 52 analogue source , connecting 7 antennae ,.
Index 62 DSP parameters (continued) Depth 44 LipSync 44 Phase 44 RC 44 Rear 44 R Delay 44 Sides 44 S Delay 44 T reble 44 DSP presets Ambisonics 46, 52 Cinema 50 clearing 54 Compress parameter 52 Direc.
Index 63 G68D 1 audio inputs 6 audio outputs 10 comms connections 22 specifications 4 tuner connections 22 G68XXV 1 audio inputs 6 audio outputs 13 comms connections 22 specifications 4 tuner connecti.
Index 64 R RC (DSP parameter) 44 Rear (DSP parameter) 44 Roll (DSP parameter) 47, 49 Row (DSP parameter) 46 R Delay (DSP parameter) 44, 47 R Filter (DSP parameter) 45, 46, 50 S safety warnings ii seco.
Index 65 V video connections 17 inputs 18 outputs 18 video switching 19, 20 W Width (DSP parameter) 45, 46, 47 Y Y aw (DSP parameter) 47, 49 G Series DSP 65 31/10/03, 4:24:53 pm.
Index 66 G Series DSP 66 31/10/03, 4:24:53 pm.
An important point after buying a device Meridian G68 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Meridian G68 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Meridian G68 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Meridian G68 you will learn all the available features of the product, as well as information on its operation. The information that you get Meridian G68 will certainly help you make a decision on the purchase.
If you already are a holder of Meridian G68, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Meridian G68.
However, one of the most important roles played by the user manual is to help in solving problems with Meridian G68. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Meridian G68 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
