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96

PLM Series Operation Manual rev 1.1.3

12. Application Guide

Figure 12.7: Digital clock setup page

The default configuration is Auto 48 detection, which is appropriate for most professional audio applications.

For further information on the user interface please

refer to the Dolby Lake Controller Manual and the

Sample Rate Converter Clock (SRC Clock)

configuration in section 7.2.1.

When enabling Dante, the PLM will sync its digital

clock to the Dante master. If using the AES input

in conjunction with having Dante enabled, the

Dante master must have AES signals derived from

the same word clock.

12.7 Firmware Upgrades

This chapter describes the process for upgrading firmware in the PLM.

As a responsible manufacturer, Lab.gruppen adopts a policy of continuous product development. As with
all software-based products, it may be desirable from time to time to update the firmware in your PLM
with a more recent version. You can contact your Lab.gruppen dealer or distributor, or visit the Lab.gruppen
website for details on available updates:
www.labgruppen.com/plm

Firmware upgrades are downloadable from the Lab.gruppen website.

PLM firmware upgrade is conducted via the network from the PC running the Lake Controller software.
There are two methods of performing the upgrade: by using the Firmware Update Utility or by using the
Lake Controller software.

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Содержание PLM 10000Q

Страница 1: ...Rev 1 1 3 Item no OM PLM Operation Manual PLM Series Powered Loudspeaker Management systems Operation Manual ...

Страница 2: ...er DSP Gain ISVPL load verification and performance monitoring 10 4 2 3 Lake Processing and Controller 11 4 2 4 Lake Analyzer Bridge 11 4 2 5 Dante audio network 11 4 3 Additional Documentation 11 5 Installation 13 5 1 Unpacking 13 5 2 Mounting 13 5 3 Rear Mounting 13 5 4 Cooling 15 5 5 Operating Voltage 15 5 6 Grounding 16 6 Quick Guide Overview 17 6 1 Front Panel Overview 17 6 2 Rear Panel Overv...

Страница 3: ... 32 8 1 Signal Flow 32 8 1 1 Level adjustments 32 8 1 2 Mute points 33 8 1 3 Power Output Section Limiting and Sensitivity 33 8 3 Modules and Frames 35 8 3 1 LoadLibrary and Fingerprints 36 8 3 2 Super Modules 36 8 4 Presets 37 8 4 1 Module files 37 8 4 2 Frame Presets 37 8 4 3 Subsystem Presets 37 8 4 4 System Presets 37 9 Front Panel Interface 38 9 1 Front Panel Navigation 38 9 1 1 General descr...

Страница 4: ...file ISVPL Profile 58 9 13 2 5 3 MaxPeak Level MaxPeakLvl 58 9 13 2 5 4 MaxRMS Level MaxRMSLvl 58 9 13 2 5 5 MaxRMS Corner MaxRMSCor 58 9 13 2 5 6 MaxRMS Attack MaxRMSAtk 58 9 13 2 5 7 MaxRMS Release MaxRMSRel 59 9 13 2 6 Mutes 59 9 13 3 Input routing and settings submenu 59 9 13 3 1 Input selection and sensitivity settings 60 9 13 3 2 Iso Float 62 9 13 3 3 AES EBU input termination 62 9 13 4 Atte...

Страница 5: ... electronic balancing 71 10 2 2 Digital inputs and links 72 10 3 Speaker Output Connections 73 10 3 1 Speakon output connectors 73 10 3 2 Binding post output connectors 75 10 4 RJ45 Connectors 75 11 Appendix 77 11 1 Faults and Warnings Overview 77 11 2 Maintenance 79 11 3 Factory Default Settings 79 11 4 Current Draw and Thermal Dissipation Specifications 80 11 5 Glossary of Terms Acronyms and Abb...

Страница 6: ...4 1 Distribution amplifiers 93 12 5 4 2 Passive splitters 94 12 5 5 Additional reference 94 12 6 Digital Clock Configuration 95 12 7 Firmware Upgrades 96 12 7 1 Firmware upgrades using the update utility 97 12 7 2 Firmware upgrades using the Lake Controller software 100 12 8 Hot Swapping PLM devices 101 13 Technical Specifications 102 14 Warranty 104 ...

Страница 7: ...rt the user to presence of important operating and service instruc tions in the literature accompanying the product 3 1 1 WARNING 3 1 2 CAUTION To reduce the risk of fire or electric shock do not remove screws No user serviceable parts inside Refer servicing to qualified service personnel To reduce risk of fire or electric shock do not expose this apparatus to rain or moisture Do not expose this s...

Страница 8: ... time 13 Do not connect the unit s outputs in parallel or series with any other unit s output Do not connect the unit s output to any other 14 voltage source such as battery mains source or power supply regardless of whether the unit is turned on or off Do not run any of the unit s outputs back into another channel s input 15 Refer all servicing to qualified service personnel Servicing is required...

Страница 9: ...hich the receiver is connected Check if the affected unit complies with the EMC limits for immunity CE labeled If not address the problem with the manufacturer or supplier All electrical products sold in the EC must be approved for immunity against electromagnetic fields high voltage flashes and radio interference Consult the dealer or an experienced radio TV technician for help 3 3 4 Speaker dama...

Страница 10: ...sponding section in this or other manuals 4 2 1 Amplifier platform The PLM Series power output section is built on the foundation of Lab gruppen s robust road proven FP Series amplifiers Features in common with the FP Series include extraordinary power density patented Class TD output stages Regulated Switch Mode Power Supply R SMPS the high efficiency Intercooler copper finned cooling system and ...

Страница 11: ...mization and control Smaart combines several powerful audio frequency measurement and analysis tools Live Capture was created by WaveCapture to offer easy to use software and measurement tools for sound engineers installers consultants and designers The Lake Analyzer Bridge in conjunction with Live Capture Light provides a completely free spectrum analyzer via your Lake Controller software interfa...

Страница 12: ...n on creating net works of PLM Series units with sample network topologies and specific recommendations for third party networking devices Lake Controller User Manual PLM Addendum This document covers those features and functions that are unique to the PLM in the Lake Controller software application Dolby Lake Controller User Manual This document provides detailed information on features and funct...

Страница 13: ...M 14000 Technical Data PLM 10000Q A E Specifications We recommend that you keep the original carton and all other packaging materials to facilitate shipping of the PLM should the need arise 5 2 Mounting Airflow for cooling the PLM is from front panel intake to rear panel exit There must be nothing at the front or rear of the rack in which the PLM is mounted such as doors or lids to impede the airf...

Страница 14: ...o mounting methods are possible note that the method shown in figure 5 3b additionally provides extra security against unauthorized removal For situations where rapid removal and replacement of units is of paramount importance the method shown in figure 5 3c may be used as it does not involve any permanently secured fixing at the rear of the unit x2 x2 x2 x2 Figure 5 3a Rear support mounting hardw...

Страница 15: ...served there is a risk of overheating as units with the reverse airflow will be drawing in air which has already been heated by the PLMs The PLM is equipped with a sophisticated tempera ture sensing system which protects it from any overheating which may occur as a result of inadequate ventillation Should a power output channel overheat the temperature sensing circuits will mute that channel until...

Страница 16: ...a diagnostic routine on the internal circuitry The fans will run at high speed for a short period before dropping to idle speed and the power symbol in the power switch will change from red Standby mode to green active 5 6 Grounding Analog inputs feature Iso Float ground isolation a technology which combines the benefits of transformer coupled isolation with the advantages of clean direct coupled ...

Страница 17: ...s are fitted behind metal covers To remove the covers loosen the thumbscrews located behind the handles Once detached the dust filter elements can be removed for cleaning See section 11 2 for information on cleaning the dust filters Display The display illuminates when the PLM is active Many of the control and metering functions found on conventional amplifiers are replaced on the PLM by a set of ...

Страница 18: ...ode and the top page of the MENU tree is displayed Once in MENU mode the function buttons enable the user to navigate the menu tree and access most PLM Series operating functions See sections 9 12 2 to 9 12 8 for more details Soft Function Buttons Eight soft function buttons are set adjacent to the display in two groups of four These buttons are unlabelled because their functions change according ...

Страница 19: ...screen up one level in the menu tree In METER mode pressing the EXIT key always returns the display to the HOME view 6 2 Rear Panel Overview Ser N o Removed CH 2 CH 1 CH 4 CH 3 CLASS 2 WIRING SPEAKER OUTPUTS INPUT 1 INPUT 2 LINK 1 LINK 2 AES EBU INPUT 1 2 LINK 1 2 LINK SEC PRIM ACT LINK ACT SWITCHED 10 100 Base TX Must be grounded earthed Made in Sweden PIN 1 SCRN 2 POS 3 NEG ANALOG WITH ISO FLOAT...

Страница 20: ...ake Iso Float circuitry The impedance is 20 kOhms and the inputs can accept a maximum input level of 26 dBu Analog links Two latching XLR3M connectors are fitted adjacent to the analog input connectors These are paralleled to the input connectors to provide an unprocessed analog loop through to feed additional PLM Series units or other equipment AES EBU inputs A latching XLR3F connector is provide...

Страница 21: ...el configuration is model dependent Speakon connectors The Speakon connector configuration differs on 2 and 4 channel PLM models On 4 channel models the power outputs are simultaneously available on a single 8 pole Speakon connector and on two 4 pole Speakon connectors The two 4 pole connectors carry the outputs of channels 1 2 and 3 4 respectively On 2 channel PLM models the two power output chan...

Страница 22: ...n on how to connect the PLM to a network is contained within a separate document the PLM Series Network Configuration Guide Primary connector Use this connector when the network is a simple star configuration consisting of individual Cat 5e connections between PLMs and a local Ethernet switch Alternatively it can be used to connect to the Secondary connector of another PLM within a network thus fo...

Страница 23: ...crossover configuration and output routing A full description of how the lake Controller software is used with the PLM is contained in the separate documents The Dolby Lake Controller User Manual and the Lake Controller User Manual PLM Addendum Also see the accompanying PLM Series Network Configuration Guide for details of how to connect one or more PLMs to a PC via the Dante digital audio network...

Страница 24: ...128 MB Video RAM or greater Windows XP or Vista DirectX 8 1 or later pre installed with Windows XP and Vista 100Base T wired Ethernet adapter and or 802 11g wireless Ethernet adapter XGA display screen with min resolution of 1024 x 768 pixels If you are unsure about installing new software on a PC please contact your organisation s IT department or another suitably qualified specialist first Once ...

Страница 25: ... in the output stages which couples the ef ficiency of Class D topologies to the sonic purity of Class B designs The primary benefit is that Lab gruppen s Class TD works perfectly under all load conditions The output maintains its flat frequency response even into complex loads with very low nominal impedances Reliability is very high and there is no interference with nearby RF equipment Superior ...

Страница 26: ...tage at max power burst Figure 7 2 3 Power rating levels over time Power ratings are based on a real life duty cycle of 25 ms full power every 400 ms Between bursts a lower signal level applies such that the continuous average power is 1 8th of the rated power In reality when some channels are delivering less than maximum rated power energy reserves in the PSU are available to permit other channel...

Страница 27: ...rshoot at the output The amplitude of the output signal between digital samples is predicted This permits the ISVPL to respond to analog peaks that may occur at the digital to analog converter The release time of any gain reduction is adaptive and is dependant on the dynamics of the signal It is also possible to select between different profiles so that the limiting can be optimized for a specific...

Страница 28: ...eliver current levels at the outputs that exceed the maximum current ratings of the output transistors The CPL keeps the output transistors within their Safe Operating Area SOA The CPL is non adjustable CPL activity is indicated on the power output channel LED one of the four LEDs in the soft function buttons to the right of the display Activity on an affected channel results in a flashing red ind...

Страница 29: ...Ds 7 3 6 Temperature protection Thermal measurements are made at several points within each channel as well as on the power supply or the DSP area If the maximum permitted temperature is exceeded a high temperature warning is given In the case of an amplifier component overheating this will be indicated by one of the power output channel LEDs in the right hand soft function buttons showing steady ...

Страница 30: ... protection system recognizes that continuous VHF signals at high levels do not appear in speech or music Any such content can therefore be considered as a fault condition VHF protection is essential to avoid damage to HF drivers VHF protection is dependent on a combination of output power level and frequency Figure 7 3 8a below shows a decreasing power threshold from approximately 10 kHz upwards ...

Страница 31: ... clears 7 4 Power Supply The R SMPS Regulated Switch Mode Power Supply is designed to keep supply voltage rails at optimum levels even when mains voltages sag Mains voltages can drop as much as 20 below nominal before there is any effect on rail voltages Thus the R SMPS can deliver full rail voltage to the output stage at all times allowing the PLM to exhibit consistent transient response and undi...

Страница 32: ...udio performance Numbers refer to points in the signal flow diagram Users may adjust the input levels to and the output levels from the Lake Processing system MODULE input and MODULE output The PLM power stage gain may be adjusted as well All three adjust ments can be made from either the front panel display or the Lake Controller software The per channel attenuation can only be made from the fron...

Страница 33: ...t voltage and therefore also the maximum output power The ISVPL setting is made via MENU MODULE LIMITERS ISVPL and can also be set from the Lake Controller software Figure 8 1 PLM Signal Flow Diagram Part 2 four power output channel model shown Output Routing AMP Attenuator Mute Phase Rev Attenuator Mute Phase Rev Attenuator Mute Phase Rev LoadSmart SpeakerSafe LoadSmart SpeakerSafe LoadSmart Spea...

Страница 34: ...ee section 9 12 3 1 Table 8 1 Analog input sensitivity in dBu and Vrms INPUT SENSITIVITY ISVPL SETTING 193 V 153 V 17 8 V GAIN SETTING dB dBu Vrms dBu Vrms dBu Vrms 44 0 9 0 86 1 1 0 68 19 8 0 08 41 3 9 1 22 1 9 0 96 16 8 0 11 38 6 9 1 72 4 9 1 36 13 8 0 16 35 9 9 2 43 7 9 1 92 10 8 0 22 32 12 9 3 43 10 9 2 71 7 8 0 32 29 15 9 4 84 13 9 3 84 4 8 0 45 26 18 9 6 84 16 9 5 42 1 8 0 63 22 22 9 10 84 2...

Страница 35: ...pon the signal processing configuration of that Frame Modules can be configured with the following processing elements either singly or in combination Classic Crossovers Bessel Butterworth Linkwitz Riley Linear Phase Crossovers Auxiliary Outputs The Lake Controller software is also provided as standard with a PLM LoadLibrary of Modules pre configured for many well known models of loudspeaker Modul...

Страница 36: ... as either a 2 way or 2 Aux Detailed information relating to loading Module files and subsequent manipulation of the Modules can be found in the Dolby Lake Controller User Manual chapter 7 5 8 3 1 LoadLibrary and Fingerprints In addition to the standard loudspeaker presets Module files the Lake Controller also includes a set of enhanced Module files specifically for use with the PLM Series Termed ...

Страница 37: ...twork or stored for future use It is not possible to store a Module File or configuration file within the PLM For further details on storing Module data see chapter 7 5 Module Store Recall of the Dolby Lake Controller User Manual Module files based on modules from the LoadLi brary will also include the loudspeaker specific Fingerprint data 8 4 2 Frame Presets A maximum of 100 Frame Presets can be ...

Страница 38: ... View Figure 9 1 Meter Modes The PLM always powers up in METER MODE HOME VIEW See section 9 11 for full details of the three METER MODE views MENU MODE is selected by pressing the MENU button The screen display changes to the top page of the menu tree which lists the various submenus available Select the required submenu by pressing the soft button adjacent to it In some cases parameter adjustment...

Страница 39: ... software To achieve this it is possible to Ping or highlight a Module on the PC directly from the PLM The PLM should be in METER mode for this function to operate Press the soft button adjacent to the chosen Module s input display and the corresponding Module label on the Lake Controller software will highlight in yellow text If the Module is not yet placed within the work area then the Module sc...

Страница 40: ...it can be de selected by a second press of the MUTE ENABLE button 9 5 Meter Button The PLM control system has two operating modes METER mode the default and MENU mode Each mode has a family of screen displays specific to the mode In all normal operating situations the system will be in METER mode which allows the user to monitor PLM parameters such as signal level output power and temperatures In ...

Страница 41: ... the selected parameter or counter clockwise to decrement lower it Parameters with only two states e g ON OFF are toggled by turning clockwise or counterclock wise With several PLM parameters it is possible to enable simultaneous adjustment of a combination of input and output channels To select which channels are adjusted press the associated soft button This toggles the displayed parameter value...

Страница 42: ...een each channel Turning the rotary encoder simply adjusts each parameter by 0 1 V in the case of the ISVPL screen When in Meter mode the rotary encoder allows the user to change between the four different meter views 5 The rotary encoder also scrolls thru the different meter views while at HOME 9 9 Exit Button The EXIT key is used while navigating the menu system in MENU mode and takes the displa...

Страница 43: ...ut Mutes For safety it is not possible to change either of these mutes without first selecting MUTE ENABLE It is also possible to control these mutes from the Lake Controller software Module Input and Output Mutes can also be controlled via the menu system i e in MENU mode not METER mode or the Lake Controller software In Home Module and Temperature View when MUTE ENABLE is selected up to six mode...

Страница 44: ...nputs to the PLM This means it is possible to mute the input to one Module while mixing input sources together and feeding the sum to the second Module This is not possible with the PLM Input Mute is activated Once the Module input is muted the soft button s integral LED turns red and the text MOD IN MUTE is displayed in inverse video When unmuted the integral LED turns green and the display shows...

Страница 45: ...ip Table 9 10 2 LED fault and warning indications The above list only applies to warnings fault and clip indications not mute statuse An unlit output LED indicates that the output channel is not routed to a Module output Under normal operating conditions i e in METER mode with no fault conditions seven of the LEDs provide indication of PLM Frame network connectivity to the Lake Controller software...

Страница 46: ...ds 25 dBu a clip indication will be given The clip indication is given by the associated Module LED flashing red In addition the warning INPUT CLIP is displayed on the screen If a second clip within 400 ms is detected the LED will remain on for a longer period Figure 9 10b Input clip LED and on screen warning Output clip All output channels are monitored by a suite of protection circuits that incl...

Страница 47: ...inputs or outputs are unmuted and operating normally 9 10 2 2 Yellow indications Yellow LED indications are reserved for PLM warnings See Table 9 11a An Event Log file logs these warnings with date and time stamps within the PLM See Chapter 5 3 of the Lake Controller User Manual PLM Addendum for further information on accessing the Event Log A detailed description of each warning can be found in t...

Страница 48: ...LT Frame Fault Audio Interface Power Channel Temp Fault Channel 5 8 TEMP FLT CH Temp Fault Amp Channel Speaker Magnet Temp Fault Channel 5 8 TEMP FLT MAG Temp Fault Speaker Magnet Speaker VC Temp Fault Channel 5 8 TEMP FLT VC Temp Fault Speaker Voice Coil Power Supply Unit Temp Fault Frame 1 TEMP FLT PSU Temp Fault Power Supply Unit DSP area Temp Fault Frame 1 TEMP FLT DSP Temp Fault DSP Area No L...

Страница 49: ...ers are displayed in inverse video in the screen center between the left and right columns These provide confirmation of the PLM s Module output configuration The letters A or B refer to the two Lake Processing modules and the numbers 1 4 to the up to four of PLM s power output channels The two examples below are given as illustration of two different module configura tions on a four channel PLM I...

Страница 50: ...ake Processor Module outputs while the center two blocks in the left hand column 2 3 provide information relating to the inputs to the amplifier or the Lake processor Module inputs The upper and lower blocks in the left hand column 1 4 display global information about the PLM Frame data Figure 9 12c Input and output block display 9 12 1 Meter View 1 Home View 2 AUX FAULT WARNING Y 10SUB 50 CL3W FA...

Страница 51: ...tion in dB of the difference between the signal level and input clip level is also provided at the right hand end of the meter Line 4 Module fault warning In the event of a Module fault or warning text describing the problem is displayed here Block 4 Icon indicates AES EBU Input termination state An omega icon indicates input is terminated no icon indicates input is unterminated Icon indicates gro...

Страница 52: ... and B if any Line 2 blank Line 3 Input meter showing signal level at the Module input A numeric indication of peak level is also provided at the right hand end of the meter Line 4 blank Block 4 is unused in METER mode Output blocks Line 1 Output voltage meter denoted by V This meter indicates the PLM s power output stage voltage relative to its clip level Line 2 Output current meter denoted by in...

Страница 53: ...em perature of the main Lake processor as a percentage of its maximum permitted value The numerical percentage value is also displayed at the right hand end of the meter Blocks 2 3 and 4 are unused in Temperature View Output blocks Line 1 Current actual temperature of the channel s power output stage denoted by AMP as a percentage of its maximum permitted value The numerical percentage value is al...

Страница 54: ...ion and AES EBU input is displayed with the current sample rate Line 3 Input meter showing signal level at the input to the input router A numeric indication in dB of the difference between the signal level and input clip level is also provided at the right hand end of the meter Line 4 Router fault warning In the event of a Router fault or warning text describing the problem is displayed here Butt...

Страница 55: ...ocks of the display Pressing the adjacent soft button selects that submenu and the display changes to a set of further options within the submenu The top left block always indicates the current position in the menu tree These options may then be selected in a similar fashion which in some cases may involve a further level of selection When parameter level is reached individual PLM parameters may b...

Страница 56: ... be adjusted in the Lake Controller software for the whole Group it is useful for the effect of this additional Group adjustment to be taken into account The Group Sum parameter value is effectively the sum of the individual Module value plus any gain delay etc that has been applied to the whole Group Menu structure From the top page of the menu system the following seven submenus are available Mo...

Страница 57: ...rs may also be adjusted from the Lake Controller Software The Group Sum value is also displayed in brackets for this parameter for each channel 9 13 2 3 Phase reverse This option is selected by pressing soft button 4 Polarity from Menu è Module Audio phase reversal is available at the inputs to Module A and Module B and also individually on the four output channels The on screen text displays Posi...

Страница 58: ...xPeak level parameters may also be adjusted from the Lake Control ler software The Group Sum value is also displayed in brackets for this parameter for each channel 9 13 2 5 4 MaxRMS Level MaxRMSLvl This sets the maximum RMS signal level at the Processor s Module outputs It is adjustable from 30 dBu to 30 dBu the default setting unless another range has been specified in the Module settings in 0 1...

Страница 59: ...3 2 6 Mutes This option is selected by pressing soft button 8 Mute from Menu è Module The audio signal may be muted at the Module input stage or the Module output stage from within the menu system Note that the Module input mute can also be actioned from the front panel when in METER mode The display shows the current mute status for the two mute positions as Muted or Not Muted Soft function butto...

Страница 60: ...er 7 2 2 for further details Each Router is essentially a six input switch permitting one of six possible sources to be routed to either Input Mixer The six sources are Analog input 1 Analog 1 Analog input 2 Analog 2 AES EBU digital input Ch A AES 1 AES EBU digital input Ch B AES 2 Dante network Ch A Dante 1 Dante network Ch B Dante 2 A seventh routing selection is to have no input selected Empty ...

Страница 61: ...y 1 AES EBU chapter2 AES2 Priority 2 Empty Priority 3 Empty Priority 4 Analog input 2 Analog 2 These assignments may be changed by pressing soft function buttons 5 8 and using the rotary encoder to scroll through alternative options It is important to appreciate that due to the signal type hierarchy inherent in the input selection process it is not possible to select an analog source to a higher p...

Страница 62: ...13 3 3 AES EBU input termination This option is selected by pressing soft button 8 AES Term from MenugInput Cfg For fault free operation when using AES EBU digital audio as an input source inputs must be correctly terminated with the characteristic impedance of 110 ohm Whether a particular unit in an set of multiple PLMs should have its AES EBU input terminated will be determined by the method use...

Страница 63: ...oft button 4 Sel All selects all channels a second press deselects them Alternatively individual channels may be adjusted independently by selecting them one at a time with soft function buttons 5 8 Note that it is not possible to adjust attenua tion for two or three channels only one channel or all channels may be adjusted at one time 9 13 5 Frame submenu This submenu is selected by pressing soft...

Страница 64: ...echnical staff will probably request these numbers 9 13 5 2 1 Firmware version view Frame Info FW Version Bundle 00 02 30 DSP 00 02 30 FPGA 038 Amplifier 0 12 1 Front Panel 1 2 1 Lake FW version Amplifier FW version Front Panel Display FW version Firmware Bundle version 9 13 5 2 2 Latency Inh Latency Any processing of audio signals in the digital domain necessitates a small but finite processing d...

Страница 65: ...a full list of these values Two levels of reset are provided Soft and Factory 9 13 5 3 1 Factory Reset Factory Reset resets all PLM settings and parameters to the original factory defined default states This includes the deletion of any System and Frame Presets stored within the PLM It also resets the IP settings for the network ports back to default a hard power cycle is required to activate this...

Страница 66: ... and confirm valid network connectivity 9 13 5 4 5 IP Mask This displays the IP address subnet mask currently set for the unit It can be changed from the Lake Control ler software See Dolby Lake Controller User Manual chapter 7 2 6 Technical Data 9 13 5 5 Latency match This option is selected by pressing soft button 7 Lat Match from Menu è Frame Once selected the Latency Match function can be turn...

Страница 67: ...ct the PLM to a PC To recall a previously saved Frame Preset press soft button 2 to highlight the text and then use the rotary control to display the Preset required Then press soft button 8 Recall to load the Frame Preset into the PLM 9 13 7 LoadSmart This submenu is selected by pressing soft button 7 labelled Load mon from the menu top page Note that the options available in this submenu are als...

Страница 68: ...ither be OK or Wrong Estimated number of speakers connected to the channel Computed voice coil temperature calculated from manufacturer s data contained within the loudspeaker Fingerprint If the range of voice coil temperatures displayed is acceptable pressing the Accept temp measure button starts SpeakerSafe monitoring setting these temperatures as the starting values If the user has reason to be...

Страница 69: ...d Menu Dante Tx 1 Dante Analog 1 Dante Tx 2 Analog 1 Figure 9 13 8 Dante assignment view See Lake Controller User Manual PLM Edition for for further information regarding Dante implementation 9 13 8 1 Using the PLM as a break in box Any PLM on a Dante network may act as the means of inputting audio signals analog or AES EBU into the network The audio is embedded in the Dante data stream in that PL...

Страница 70: ...ake custom power cables for your particular installation please observe the following connection details PowerCon Pin 230 V Version 115 V Version L Brown Black N Blue White Green Yellow Green Table 10 1 1 PowerCon connector wiring and pin out 10 2 Audio Input and Links 10 2 1 Analog inputs and links INPUT 1 INPUT 2 LINK 1 LINK 2 PIN 1 SCRN 2 POS 3 NEG ANALOG WITH ISO FLOAT TM Figure 10 2 1a Rear p...

Страница 71: ...g wiring and pin out 10 2 1 2 Iso Float electronic balancing The PLM s electronic input balancing circuits use the Lake Iso Float system The Iso Float technology combines the benefits of transformer coupled isolation with the advantages of clean direct coupled inputs and outputs The audio converters are galvanically isolated and not connected to the main ground High quality transformers and opto i...

Страница 72: ...performed within the digital processing section of the PLM and is controlled from the menu system See section 9 12 3 1 for full details The AES EBU Link connector may be used to daisy chain the inputs of multiple PLMs together Unlike daisy chaining of analog inputs attention must be paid to line termination When daisy chaining PLMs together only the last PLM in the chain should be set to Terminate...

Страница 73: ...peakon output field Figure 10 3 1b 2 channel Speakon output field CLASS 3 WIRING SPEAKER OUTPUTS 1 CH 1 2 CH 2 1 CH 2 2 CH 1 The Speakon connector configuration differs on 2 and 4 channel PLM models On 4 channel models the power outputs are simultaneously available on a single 8 pole Speakon connector and on two 4 pole Speakon connectors The two 4 pole connectors carry the outputs of channels 1 2 ...

Страница 74: ...3 1b 2 channel Speakon wiring and pin out NL4 PLM Output Channels 1 2 NL4 PLM Output Channels 2 1 Figure 10 3 1d Speakon NL4 NL8 wiring and output configuration 3 2 4 2 1 1 4 3 1 1 2 2 3 3 4 4 NL4 PLM Output Channels 1 2 NL4 PLM Output Channels 3 4 NL8 PLM Output Channels 1 4 Figure 10 3 1c Speakon NL4 NL8 wiring and output configuration Users will find it convenient to use either the NL4 connecto...

Страница 75: ... center of the turrets Thread the stripped ends of the wires through the holes in the posts Enter the wires for output chan nels 1 and 3 from above and for channels 2 and 4 from below Tighten the plastic turrets by finger only be careful not to overtighten Crimp 4 mm insulated spade terminals onto the ends of the wires These can be pushed into the binding post assembly from above Chs 1 and 3 or be...

Страница 76: ...RJ45 plugs are recom mended If it is necessary to make up custom Cat 5e network cables use the following pinout Pin No Color 1 Brown 2 Brown White 3 Green 4 Blue White 5 Blue 6 Green White 7 Orange 8 Orange White Table 10 4 EtherCon wiring and pin out Figure 10 4b RJ45 wiring and pin out When the PLM is connected to an active network the yellow LINK LED illuminates above the connector in use Data ...

Страница 77: ...e not overloaded This should never happen during normal program material CTRL OFFLINE Frame Offline Warning Controller Frame offline The PLM is no longer able to communicate with the Dolby Lake Controller CURRENT CLIP n a Clip Current Protection active PLM s power output stage current has exceeded the fixed safe maximum and the Current Peak Limiter has become active to limit it INPUT CLIP n a Clip...

Страница 78: ...by SpeakerSafe has exceeded the manufacturers recommended maximum TEMP FLT PSU Temp Fault Power Supply Unit Fault Power supply temperature The temperature of the PLM s PSU has exceeded its safety limit TEMP FLT VC Temp Fault Speaker Voice Coil Fault Speaker Voice Coil temperature fault The temperature of the speaker voice coil estimated by SpeakerSafe has exceeded the manufacturers recommended max...

Страница 79: ... by qualified service personnel This may be necessary if the PLM has had prolonged operation in an extreme environment such as one where cracked oil smoke machines are in use If you are using your PLM in such a heavy duty application it is recommended to have it serviced every 3 years as a purely preventative measure 11 3 Factory Default Settings Modules Modules 2 x 2 Aux Levels Unity all gain adj...

Страница 80: ...2 2 3 1 2 119 2 117 400 101 Mains connector 230 V CE version 230 V ETL version 115 V ETL version 32 A Neutrik PowerCon Twist lock 1 The amplifier section s PSU operates as a non resistive load so the calculation Volts x Amps Watts would not be correct Instead measured and specified here is what is known as the Active Power of the amplifier section providing useful real world values of power consum...

Страница 81: ...version 230 V ETL version 115 V ETL version 32 A Neutrik PowerCon Twist lock 1 The power output section s PSU operates as a non resistive load so the calculation Volts x Amps Watts would not be correct Instead measured and specified here is what is known as the Active Power of the power output section providing useful real world values of power consumption and heat dissipation 2 Current draw figur...

Страница 82: ...e of the PLM s Ethernet ports allows crossed cables to be used if wished See also Straight network cable Dante A new generation audio data protocol developed by Audinate Pty Ltd allowing multichannel high resolution digital audio plus control data to be transmitted via standard IT industry networks using TCP IP data packeting The Dolby Lake processing system integrated within the PLM includes a Da...

Страница 83: ...the PLM It is also possible to use the Lake Controller to control larger systems configured with PLMs Dolby Lake Processors and other Dolby Lake legacy devices Latency The small but finite delay incurred by audio signals when they are transformed into the digital domain processed digitally and then converted back into analog signals In the Lake system latency is assured to be constant Legacy Lake ...

Страница 84: ...versions are fitted to various versions of the PLM Star A network topology which uses a network switch to connect to individual PLMs Each PLM connects to one port on the switch with its own cable thus the network looks like a star when drawn as a diagram with the switch at the centre Straight network cable A Cat 5 6 network cable with full pin to pin connections is called a straight network cable ...

Страница 85: ...es suggesting power distribution methods across multiple PLM devices 6 x PLM and 230 240 V mains supply If the mains supply is 230 V and the system requirement is six PLMs then the mains capacity would need to be able to provide 3 x 32 A There are two methods of achieving this Three racks each with two PLMs and a 32 A single phase mains supply The 32 A capacity is shared between the two PLMs withi...

Страница 86: ...version of the PLM is equipped with a slow blow 30 A ceramic fuse The 115 V version is equipped with a metal cylinder instead of a fuse due to suitable fuses at the required current rating being unavailable Safety approved equipment is not required to have a fuse as long as this does not pose any fire hazard under fault conditions as is the case with the PLM 12 3 Gain Structure The architecture of...

Страница 87: ...One adjustment is provided per output channel in the PLM This control replaces the traditional knob found on conventional amplifiers It should typically be left at 0 dB during use Adjustments made in Lab gruppen Info Status tab Amp Gain Corresponds to the gain adjustment in a conventional system if the amplifier was outside the PLM It should retain the same settings as in the module file that is l...

Страница 88: ...dB Absolute Noise Floor 71 3 dBu Figure 12 2b illustrates how to achieve the lowest possible output noise however this is not a recom mended setup Parameter list Input clip 0 dBFS Amp gain 22 dB SNR 114 8 dB Absolute Noise Floor 71 9 dBu Gain Structure High SPL Low noise Good headroom 250 0 200 0 150 0 100 0 50 0 0 0 50 0 100 0 Analog AES Input Input Mixer Module In Module Out Amp Attenuation Anal...

Страница 89: ...te how to minimize absolute noise while achieving full power In this illustration it can be seen that there is no available headroom Parameter list Input clip 12 dBu Amp gain 30 9 dB SNR 111 3 dB Absolute Noise Floor 68 4 dBu Gain Structure Low SPL Low Input Application Low noise with limited output 140 0 120 0 100 0 80 0 60 0 40 0 20 0 0 0 20 0 40 0 60 0 Analog AES Input Input Mixer Module In Mod...

Страница 90: ...iin the processing stage This makes it possible to increase the average SPL by utilizing the internal compression possibilities Parameter list Input clip 0 dBFS Amp gain 35 dB SNR 114 2 dB Absolute Noise Floor 71 3 dBu Gain Structure High SPL Application Moderate noise with very high output 140 0 120 0 100 0 80 0 60 0 40 0 20 0 0 0 20 0 40 0 60 0 Analog AES Input Input Mixer Module In Module Out A...

Страница 91: ...t PLM Powered Loudspeaker Management systems to the signal source using digital rather than analog audio signals This is particularly true if the source signal is already in the digital domain as would be the case with a digital mixing console or digital distribution system digital snake The primary cause of signal distortion and signal delay latency is the digital to analog and analog to digital ...

Страница 92: ...d often may be disregarded However in complex systems involving multiple digital audio components and connections enough delay may be generated to cause phasing problems Therefore the least amount of latency is always preferred and it is always important to consider system latency delays when calculating and adjusting overall delay as introduced by the Lake processor when time aligning multiple lo...

Страница 93: ...he sampling rate used At a 96 kHz sampling rate any good quality AES EBU cable should allow a cable run of 100 m with no data losses beyond the capability of internal error correction The best cables may allow longer cable runs though careful trials are recommended before use in the field Sampling rate also governs allowed cable length a 100 m length at 96 kHz might extend to 200 m at 48 kHz but b...

Страница 94: ...ome limited applications a single AES EBU input may be split into two signals using a simple passive splitter Splitters provide a convenient and low cost solution when only one additional signal is required and in situations where cable lengths are short Attenuation is minimal but there is no refreshing of the signal 12 5 5 Additional reference Complete technical information on the AES EBU AES3 st...

Страница 95: ...rity according to the following priorities The incoming external clock via the AES digital input 1 The internal clock 2 The PLM always monitors the AES digital input and will seamlessly switch the clock source back and forth depending on the availability of an AES signal There are two options for the incoming clock base rate configuration 44 1 and 48 kHz The PLM must be configured to one of the ba...

Страница 96: ... the same word clock 12 7 Firmware Upgrades This chapter describes the process for upgrading firmware in the PLM As a responsible manufacturer Lab gruppen adopts a policy of continuous product development As with all software based products it may be desirable from time to time to update the firmware in your PLM with a more recent version You can contact your Lab gruppen dealer or distributor or v...

Страница 97: ...e Utilities PLM Series FW update utility where Vx y represents the current version of Lake Controller If the PC is configured with multiple network adapters select the required network adapter from the 4 displayed list and tap OK Figure 12 7 1a Firmware update utility step one Please select and use a wired networks with a fixed IP address for performing firmware upgrades A loss of network connecti...

Страница 98: ...rning message 12 7 1c Firmware update utility step three The PLMs will be updated with the latest firmware A green tick indicates successful update and the 7 percentage value indicates the progress of the firmware update of that unit A red cross indicates the firmware has not yet been upgraded to the selected target firmware version ...

Страница 99: ...PLM Series Operation Manual rev 1 1 3 12 Application Guide 99 12 7 1d Firmware update utility step four Wait for all selected PLMs to be upgraded and the information message to appear 8 ...

Страница 100: ...t or as a system file on the PC On the PC tap OK then tap Exit to quit the Firmware Update Utility 11 12 7 2 Firmware upgrades using the Lake Controller software The PLM firmware may also be upgraded from the Lake Controller software application It is recommended that this method is used only for upgrading small numbers of PLMs The Firmware Update Utility provides a faster upgrade process for larg...

Страница 101: ...alized automatically Activity and progress will be indicated on the front panel After an upgrade of the amplifier firmware the unit will reboot automatically Wait for each Processor to re sync following the power cycle 10 Tap OK to the warning message that advises that the backup file will be 11 recalled This file will reload the PLMs with the data that was present prior to the upgrade process 12 ...

Страница 102: ... EBU I O input link 2 x 3 pin XLR Analog 2 channel I O input link 4 x 3 pin XLR electronically balanced Output connectors Neutrik Speakon 2 x NLT4 or 4 Binding Posts pairs must be specified upon order Auto 10 100 Auto Uplink 2 x RJ45 EtherCon Auto 10 100 Auto Uplink Control and monitoring interface Via Ethernet for Lake Controller software Detachable mains cord Neutrik PowerCon 32 A Cooling Two fa...

Страница 103: ...Auto Uplink 2 x RJ45 EtherCon Control and monitoring interface Via Ethernet for Lake Controller software Detachable mains cord Neutrik PowerCon 32 A Cooling Two fans front to rear airflow temperature controlled speed Front panel user interface Display daylight readable LCD 2 5 inch Fault Warning Limit Clip indicators RGB LEDs Mute and soft function buttons 8 provided Standby Power button On Off Mu...

Страница 104: ...ssories operation with faulty associated equipment or exposure to inclement weather conditions Damage due to normal wear and tear is not covered by the warranty Units on which the serial number has been removed or defaced will not be eligible for warranty service Lab gruppen shall not be responsible for any incidental or consequential damages Lab gruppen s responsi bility is limited to the product...

Страница 105: ...efect Mark the Return Authorization number on the outside of the packing 3 Ship the product prepaid to 4 Lab gruppen AB Faktorvägen 1 SE 434 37 Kungsbacka SWEDEN Phone 46 300 56 28 00 Fax 46 300 56 28 99 service labgruppen com www labgruppen com Intercooler Class TD and Lake are national and or international registered trademarks of Lab gruppen AB PLM Powered Loudspeaker Management R SMPS LoadLibr...

Страница 106: ...L ab gruppen A B S weden internationa L contact info L abgruppen com U S C A N A D A C O N T A C T info tc G A M E R I C A S com w w w l a b g r u p p e n c o m Operation Manual ...

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