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Nagra – 

MPS 

 

 
 

Safety warning 

 

 

Read this manual carefully before operating the MPS; 

 

Please contact your Nagra dealer, should you have any questions on 
how to setup or the use of your MPS,; 

 

Audio Technology Switzerland SA declines any responsibility in the 
event of an accident caused by the non-observation of these 
instructions or any other form of user negligence; 

 

There are no user adjustments inside the MPS, do not attempt to open it. 

Warranty 

Audio Technology Switzerland SA, certifies that this device has been inspected 
and tested before leaving our factory. 
 
Every Nagra unit goes through our test laboratory. The measurement results are 

recorded in the “Protocol” documentation that comes with the device. 
 
We guarantee our products against all manufacturing defects, for a period of 
three years, starting from the date of delivery to the customer (validated by the 
serial number on the device casing and the invoice from an official Nagra dealer). 
This warranty is only valid for the original purchaser of new equipment. 
 
This limited warranty covers the repair and / or replacement of defective parts 
and labor. 
 

The absence of a serial number invalidates the warranty. 
 
We decline any responsibility for damage resulting directly or indirectly from the 
use of our products. 
 
As we constantly strive to improve our products, we reserve the right to modify 
them or change their specifications without notice. 
 
 

 

 

 

 

Disposal of old electrical & electronic equipment (Applicable in the 
European Union and other European countries with separate 
collection systems). 
This symbol on the product or on its packaging indicates that this 

product shall not be treated as household waste. Instead it shall be 
handed over to the applicable collection point for the recycling of 
electrical and electronic equipment. By ensuring this product is 
disposed of correctly, you will help prevent potential negative 
consequences for the environment and human health. The 
recycling of materials will help to conserve natural resources. For 
more detailed information about recycling of this product, please 
contact your local authority, your household waste disposal service 
or the shop where you purchased the product. 

Applicable to the following devices: MPS power supply. 
 

Summary of Contents for MPS

Page 1: ...P N 2055100159 All rights reserved 2014 rev 1 MPS Multiple Power Supply User manual ...

Page 2: ... Connecting your Nagra gear to the MPS 8 Connecting a Nagra BPS 8 Fuse replacement 9 Operating the MPS 9 Nagra Modulometer 10 LED and Modulometer intensity adjustment 10 Remote control 11 MPS with battery option 12 Starting the MPS using the trigger input REM 13 Using the trigger output AMP 13 Case cleaning 13 Technical specifications 14 Déclaration de conformité CE 15 CE Declaration of conformity...

Page 3: ...ment This limited warranty covers the repair and or replacement of defective parts and labor The absence of a serial number invalidates the warranty We decline any responsibility for damage resulting directly or indirectly from the use of our products As we constantly strive to improve our products we reserve the right to modify them or change their specifications without notice Disposal of old el...

Page 4: ...e designed by the same Research and Development department Nagra has launched a Hi Fi range to allow a wider public to benefit from technical advances that are often the privilege of the professionals The MPS will enhance your Nagra system and allow you to access better sonic performance and enjoy your music more Thank you for your confidence Package contents Besides this manual and the MPS itself...

Page 5: ...lease note that the MPS needs four spikes and thus is not compatible with older VFS before 2012 Feel free to contact your Nagra dealer for more information it is not advised to place other Nagra units above or below the MPS as it features a large transformer It is preferable to use a separate shelf for other devices Connection block 1 Main switch I for On O for Off 2 Fuse holder 3 IEC socket for m...

Page 6: ... when lit 6 Outputs 1 to 4 status 7 Modulometer selector Mains voltage battery voltage individual output voltage 8 Modulometer 9 Modulometer and LED brightness selector Connecting the mains Place the front panel selector in the OFF position marked O Insert the IEC cable into the connector on the rear of the Nagra MPS You may then push the mains switch to the I position 2 1 3 4 5 6 7 8 9 ...

Page 7: ...DC cables are directional One end is equipped with a black ring left plug in the photo which MUST be connected to the MPS The other end aluminum ring lower plug in the photo must be connected to the source device When inserting the cable you will hear a click This indicates that the plug is securely locked To disconnect the DC cable hold the indicated ribbed section of the plug and pull backwards ...

Page 8: ...mote control or the input trigger for more information see page 13 OFF The MPS is in standby position the internal battery if fitted will recharge ON The power on sequence will start outputs 1 through 4 will be powered and then the AMP output triggered for more information about the latter see page 13 BAT The MPS will turn ON and output 1 will be fed by the battery The power down sequence order is...

Page 9: ...em in your area The MPS only displays the voltage it does not affect it BAT displays the battery level from 12 to 17 V The output level of a fully charged battery is 16 8 V If the battery drops to around 13 V the MPS will automatically recharge it If no battery is present the needle will remain on the far left of the meter 1 2 3 4 positions will display the actual output level of the corresponding...

Page 10: ...nt panel board on the right hand side the picture shows an MPS equipped with the optional battery 0 position is for Philips RC 5 format 1 to 6 is to use Nagra RCU and RCU II device number simply turn the selector to the number you wish the MPS to respond to Using a universal remote with the MPS Place the selector shown above on the 0 position The MPS will respond to IR signals coded in Philips RC ...

Page 11: ...position is selected yet the battery charge is too low the MPS will automatically begin to recharge In this case output 1 will be fed from the mains and no longer from the battery Charging time and operation time The charging time is estimated to be 8 hours when the outputs are off If the battery is recharging while the MPS is turned on charging time will be longer When you turn the main selector ...

Page 12: ...main selector to BAT Whenever you connect a jack on the REM connector it will override the IR remote control Using the trigger output AMP See the following picture for cabling of the 1 8 jack MPS Tip and ring AMP On Connected AMP Off Open The AMP will be activated at the end of the powering sequence to avoid any clicks that sometimes occur at start up When powering down the amplifier will be turn ...

Page 13: ...e BPS output 150 μV maximum 10 Hz 300 kHz Home automation input output 3 5 mm jack connectors output switching by relay Battery module capacity 6 75 AH Optional Mains power 100 115 or 230 VAC 10 Power consumption Maximum 60 W In standby 10 mW Dimensions 277 x 268 x 73 mm Excluding connectors L x W x H 10 9 x 10 6 x 2 9 inches Excluding connectors Weight 4 9 Kg 10 8 lbs Without battery 5 6 Kg 12 3 ...

Page 14: ... EN 61000 4 3 Immunity to electromagnetic fields EN 61000 4 3 Immunité aux décharges électrostatiques EN 61000 4 2 Immunity to electrostatic discharges EN 61000 4 2 Immunité aux transitoires électriques rapides en salves sur câble d alimentation EN 61000 4 4 level 2 1000V Immunity to burst on mains line EN 61000 4 4 level 2 1000V Immunité aux transitoires électriques rapides en salves sur câbles d...

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