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RAM Audio LMS 266 / LMS 221 Digital Controller – Hardware Manual

RAM Audio continually investigates to improve the quality of its products. The specifications

explained in this manual can vary without previous notice. In any case, a new RAM Audio

product will have the same or considerably better specifications.

Manufactured by C.E. Studio-2 s.l.

Pol. Ind. La Lloma, C/ Sierra Parenxisa, nº 28

46960 Aldaya, Valencia – SPAIN

www.ramaudio.com

[email protected]

Summary of Contents for LMS 221

Page 1: ...HARDWARE MANUAL P 98754 005 QXPLMSDoc 11 05 2005 by C E Studio 2 s l Spain EEC http www ramaudio com e mail support ramaudio com LMS 266 LMS 221 Digital Controllers Loudspeaker Management System ...

Page 2: ...AM Block diagrams LMS 221 LMS 266 9 4 OPERATION Use procedures 11 Display and edition elements 12 Program menu 13 Menu hierarchy 14 1 CONFIGURATION 15 1 1 Out delay 15 1 2 Gain 16 1 3 Output POL 17 1 4 Temperature 18 1 5 Password 19 1 6 Protect 20 2 INFORMATION 21 2 1 Prot Mem 21 2 2 Test LCD 21 2 3 Version 21 3 COMMUNICATION 22 3 1 Prepare Clon 22 3 2 Clone 23 3 3 Send Memory 24 3 4 Receive Memor...

Page 3: ...rocessors RAM AUDIO include the latest digital technology advances With a maximum of precision and numerous features they are designed to meet the best professionals highest expectations in the sound environment If you wish to change some configuration parameters or create new configurations for your sound system we recommend to carefully read this manual and the manual for the software of LMS pro...

Page 4: ...the improper manipulation of electric appliances The beam pointing down inside an equilateral triangle warns of dangerous voltage existing inside the appliance The exclamation mark inside an equilateral triangle reminds the user to pay attention to the safety indications shown in this manual Some of the indications which this sign refers to are Do not expose the processor to dust or humidity Do no...

Page 5: ...LMS 221 Independent output delays 34 EQ filters absolutely configurable 17 for LMS 221 6 Crossovers up to 24 dB Oct 3 for LMS 221 Gains mutes and phase inversion per way Dynamic control with Limiter compressor and noise gate etc all this together with the best electronic components to guarantee as clearest and most accurate sound possible with all the necessary protections for your system Processo...

Page 6: ...icate presence of signal at the inputs 6 INPUT CLIP INDICATOR LEDS These LEDs when illuminated indicate that the corresponding channel is clipping the processor s input producing a trim and distortion of the signal These LEDs should never illuminate 7 DISPLAY Shows the menus information on working order as well as diverse modifiable parameters by the user 8 MENU KEYS Permit to move up and down in ...

Page 7: ...tacts 13 IEC POWER SUPPLY CONNECTOR The mains cable is supplied with the processor LMS 221 LMS 266 incorporates a precise switching power supply which accepts voltages from 85 to 265V The power supply is continually regulating itself and guarantees a perfect working order even with bad regulated supplies 14 FUSE HOLDER Location of 1 A fuse Only replace with fuses of the same value 13 14 12 11 ...

Page 8: ... D CONNECTOR INPUTS Communication PC User interface 1 GROUND 2 HOT Pin 1 n c 3 COLD Pin 2 RxD Received Data Pin 3 TxD Transmitted Data Pin 4 n c OUTPUTS Pin 5 Ground 1 GROUND Pin 6 n c 2 HOT Pin 7 n c 3 COLD Pin 8 n c Pin 9 n c CONEXION CABLE PC LMS 221 LMS 266 Supplied 9 Contacts Female 9 Contacts Female Sub D PC Sub D RS 232 IN AERIAL XLR CONNECTORS ...

Page 9: ...RAM Audio LMS 266 LMS 221 Digital Controller Hardware Manual 8 Dimensions LMS 221 LMS 266 mm 45 How to connect LMS 266 INPUTS 2 1 MAINS CABLE SUB1 2 1 SUB2 4 3 OUTPUTS 45 226 482 ...

Page 10: ... 221 Digital Controller Hardware Manual 9 3 PROCESS DIAGRAM Once the analogical input signal is converted into a digital input signal the process inside the DSPs is the following Block diagram LMS 266 Block diagram LMS 221 ...

Page 11: ...er and its enclosure s respond obtaining a flat frequency or other as required CROSSOVER Bands separating filters There are Linkwitz Riley Butterworth and Bessel filters up to 24dB oct You can also put them into Bypass inactivating them so this way disposing of the corresponding way in full band DYNAMICS Dynamics section The LMS 221 LMS 266 has a sophisticated algorithm of dynamics which uses a RM...

Page 12: ...s corresponding amplifier avoiding possible irreparable damages of the loudspeaker mainly the drivers In an installation it is convenient to connect the audio and lighting systems in independent voltage lines to separately protect two parts and minimize the interferences between the systems b After switching on Turning on the LMS 221 LMS 266 the audio outputs will remain short circuited to ground ...

Page 13: ...access to the configuration menus DESCRIPTION OF THE ELEMENTS FOR THE EDITION The elements for the edition permit the modification of the options inside the menus as well as the navigation through the menus and submenus MENU KEYS ENTER MENU KEYS allows us to move up and down in the menu as well as to increase and decrease the edited parameters value Pushing the upper key we move upward in the menu...

Page 14: ... of the processors working order parameters When you switch on the processor the following session start menu appears Welcome menu It shows the version of the microcontroller software in the first line Program access menu The name of the actual program appears in the first line Pressing the Enter key allows you to enter in the detailed configuration of the processor s functions The letter A indica...

Page 15: ... 2 Test LCD 2 3 Version 3 Comunication 3 1 Prepare Clon 3 2 Clone 3 3 Send Memory 3 4 Receive Memo 1 Configuration 1 1 Out Delay 1 2 Gain 1 3 Output POL 1 4 Temperature 1 5 Password 1 6 Protect Enter Enter Enter Enter Enter Enter Enter UP Down Enter Enter Enter UP Down Enter Enter Enter Enter Enter Down Down Enter ...

Page 16: ...y we have Pressing the Enter key from the main menu we have access to the submenu in which we will introduce the Delay value in milliseconds or centimetres for the output 1 If we press the Enter key again we reach the output 2 in which we repeat the process Like this we continue introducing all of the outputs delay By pressing the Enter key a last time we return to the Out Delay menu The Delay val...

Page 17: ...o enter into the submenu where we introduce the gain in dB for Out 1 If we push the Enter key again we will enter into the Out 2 submenu where we will repeat the process continuing this way until all gains are defined Once all values have been inserted we will push the Enter key again to return to the Gain menu The gain values can vary from Mute 30 0dB to 6db in steps of 0 1db The processor will i...

Page 18: ...s to the submenu in which we will insert the polarity chosen for the output 1 With the upper and lower menu keys we will change the polarity Push the Enter key to insert the actual polarity and pass on to the next way Repeat this process with the rest of the outputs The processor will indicate for each output the name defined by the user with the LMS 221 LMS 266 Control Software 1 3 Output POL SUB...

Page 19: ...t level above Temperature Here we can choose the temperature for the work environment which will be used in the calculation of the delay distances Pressing the Enter key we will enter into the value s edition To change the value we will press the upper or lower menu keys Pressing Enter we validate the value 1 4 Temperature 1 4 Temperature 1 4 Temperature Temp 25 ºC ...

Page 20: ...ave access to the submenu where we will be asked for the current password We will dispose of 6 alphanumeric characters If we do not know it or if we enter a wrong access password the message Password ERROR will appear on the screen and will return to the main submenu screen If we enter the correct access password we can change and activate it or not If you press the Enter key after activating it i...

Page 21: ...e memory number there will appear the mark indicating that it is now protected With the menu key we navigate through the different memories activating and deactivating the protection for each of them If we press the Enter key in any window of the program s submenu we will reach a window of confirmation of our action activation or deactivation of the protection Once finished all the actions in the ...

Page 22: ...ter key on the Information screen the submenu Prot Mem is the first we reach Pressing the Enter key here we will be given INFORMATION on how many program memories are protected In this case there are 10 memories protected Submenu 2 2 Test LCD If we go up with the upper menu key we reach the submenu Test LCD From this screen we can carry out a LCD check and see if all the pixels are correct Submenu...

Page 23: ...figurations as well as the operative system of the processor In our case the processor receives the information of another processor working as a master Submenu 3 1 Prepare Clon If we press the Enter key in the main menu the submenu 3 1 PREPARE CLON appears This screen advises us to keep the processor ready to be cloned A second screen informs us that the processor is prepared to receive informati...

Page 24: ...creen the submenu 3 2 Clone appears Here we receive the advice to prepare the processor to be cloned and to press the Enter key to start the process A next screen informs us of the cloning process showing the percentage of information which is being sent When the process has terminated a window with the program s name appears NOTE In the case of data transmission s problems or when the processors ...

Page 25: ...er to prepare the processor which is going to receive the information pressing the Enter key the process will start For this first the LMS 221 LMS 266 which is going to receive the memory needs to be waiting in the submenu 3 4 Receive Memory A next screen informs us of the process of cloning showing the percentage of information which is being sent When the process has terminated a window with the...

Page 26: ... received information will be saved Pressing the Enter key we move to the next screen Here we are informed that the processor is waiting to receive the data from the other unit of LMS 221 LMS 266 Pressing any key you exit from this option returning to the main screen As soon as the process begins the following screen informs us of the cloning process showing the percentage of information which is ...

Page 27: ...o avoid interferences THD 0 002 Frequency Response 10Hz 24000Hz Processing 2 Floating Point DSP 1 DSP for LMS 221 Internal resolution of 48 bits with double precision Data memory Flash type memory to store 60 Presets Total Memory 128 Kbytes Power Supply Self regulated Switching Power Supply Universal 85V 265V 50Hz 60 Hz Fuse holder included in the mains IEC connector with spare fuse 1A Consumption...

Page 28: ...een the outputs and their corresponding power amplifiers Some ways could be changed Always increase the amplifiers volume bit by bit and way by way to ensure a correct wiring and avoid that the transducers is being damaged 4 One power amplifier with the same signal as the rest sounds less Check if the cable which connects the processor and the amplifier is balanced If not the output signal will de...

Page 29: ...cessary spare parts free of charge If the product cannot be returned to the factory for inspection and repair RAM Audio will supply all necessary spare parts During the guarantee s validity RAM Audio does not assume the responsibility for any damages or defects caused by transportation bad use or inappropriate manipulation of persons who do not belong to RAM Audio staff or to its authorized servic...

Page 30: ... damages losses costs or expenses by the purchaser as a result of an accident bad use or abuse of this product or modifications repairs or changes of the product or in the case of not strictly following the instructions of working order and maintenance of RAM Audio LMS 221 LMS 266 are commercial marks of RAM Audio Microsoft Windows are registered brand marks of Microsoft Corporation Other product ...

Page 31: ...f its products The specifications explained in this manual can vary without previous notice In any case a new RAM Audio product will have the same or considerably better specifications Manufactured by C E Studio 2 s l Pol Ind La Lloma C Sierra Parenxisa nº 28 46960 Aldaya Valencia SPAIN www ramaudio com support ramaudio com ...

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