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Trilogy 903 User Manual

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U S ER MANUAL
903

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Summary of Contents for Trilogy 903

  • Page 1 U S ER MANUAL...

  • Page 2: Thank You

    We strive to design and build world class products that stand the test of time. By reading this manual you can gain a clear understanding of the 903’s operation and learn to care for it correctly. In turn, it will reward you with a lifetime of outstanding performance.

  • Page 3: Table Of Contents

    contents Getting Started Introduction About this manual Unpacking Environment Power Supply Connections Mains Supply Security PIN Code Protection Powering the preamplifier Overview Menu Operation Section Cartridge Settings (when optional Phono stage is fitted) Time Settings Sleep To set the sleep timer Timers To set the daily on/off timers Time Set...
  • Page 4 To check the status of the TAS link bus Version To check the software version in this unit and peripherals Bond To bond peripherals to this 903 for security Unbond To unbond peripherals from this 903 IR Code To display the codes received by the IR receiver...

  • Page 5: Introduction

    903’s powerful and rather unique features. Should any part of this manual or the operation of the 903 not be clear to you, please do not hesitate to contact your Trilogy dealer. If they are not available please contact ourselves directly.

  • Page 6: Unpacking

    AC supply voltage before connecting the supply. The provided AC inlet cable should be used. The 903 must be earthed through the IEC inlet connector. Do not disconnect the AC earth at any time. If in doubt about any aspect of power supply, consult your Trilogy dealer or a qualified electrician.

  • Page 8: Connections

    Connect the supplied AC input cable. The 903 can be left connected at all times to ensure reliable operation. If not being used for extended periods of time; switch off at the mains outlet or at the rear panel power switch. See the Menu Operation section for timed, sleep and remote switching.
  • Page 9 Rotate [shaft encoder] to display second Pin Code pair 5225-- [enter] 522500 Rotate [shaft encoder] to display third Pin Code pair 522594 [enter] Warm up... The number used above is purely an example. Your unique PIN Code is detailed in the separate sheet accompanying your 903.

  • Page 10: Mains Supply

    Having made and checked all appropriate input, output and AC connections, power can be applied by pressing the [rear panel rocker switch]. The [power indicator] will be dimly lit to indicate the 903 is in standby. To turn on the 903 press the [power button] on the front panel.

  • Page 12: Powering The Preamplifier

    Turn Off The 903 consumes very little power in this mode and will stand by waiting for return to operation via TAS link, infra red remote or a press of the [power] button. To remove power completely the [rear panel rocker switch] can be used.
  • Page 13 Listen source options Input 1 Input 2 Input 3 Input 4 Input 5 Input 6 Send output options Input 1 Input 2 Input 3 Input 4 Input 5 Balance options Mute Right Bal <15 ..Bal <1 Bal Centre Bal >1 ..Bal >15 Mute Left Brightness options Bright Auto...

  • Page 14: Overview

    Overview The Trilogy 903 offers a nested menu structure to access the variety of options. This is intuitive, using a combination of [enter] / [escape] buttons and the rotary [shaft encoder]. By default, the preamplifier displays what we call the ‘Home Page’, which is selectable as a blank screen, Trilogy logo, time, input or volume.
  • Page 15     More Cartridge Gain   More Cartridge Gain 40dB Gain 60dB R 75 ohms R 100 ohms R 240 ohms R 330 ohms R 1 kohms R 47 kohms C none C 100 pF C 220 pF C 330 pF C 470 pF...

  • Page 16: Menu Operation Section

    If you have enabled menu lock in the defaults (disabled by default), on turning the [shaft encoder] you will be prompted to enter the four digit menu PIN code provided with your 903. This is a different number to the six digit PIN entered when power is applied.
  • Page 17   More Time Sleep Timers Time Set    More Time Sleep Sleep Off Sleep 0:01 ...Sleep 2:00...
  • Page 18 Individual timers can be disabled and only some timers used if required. For example, turn on Saturday morning and turn off Sunday evening. Press [enter] to access Sleep, then select other time options if required. This setting can only be changed when the 903 is on. More / Time / Sleep...
  • Page 19    © More Time Timers Mon ><:00 ® Mon ><:00 © Tue ><:00 ® Tue ><:00 © Wed ><:00 ® Wed ><:00 © Thu ><:00 ® Thu ><:00 © Fri ><:00 ® Fri ><:00 © Sat ><:00 ® Sat ><:00 ©...
  • Page 20 >< timer. Trilogy 903 Preamplifiers are shipped with all timers disabled and minutes set to 00, that is ><:00 To adjust a timer, select the timer of interest with the [shaft encoder] and press [enter]. This allows hours to be changed, including disabling with a setting of .
  • Page 21    More Time Time Set Day HH:MM...
  • Page 22 More / Time / Time Set An internal clock allows the preamplifier to operate its on/off timers and display the current time if required. The clock must be set by the user but, once the time is set, it keeps time even when there is no mains power applied. This clock offers the same accuracy as typical quartz units that are not locked to a time reference such as the Internet or a radio signal.

  • Page 23: Defaults

      More Defaults PIN Codes Volume Input Film in Output Balance Display Warm Mode External     More Defaults PIN Codes Power Up Use PIN Skip PIN     More Defaults PIN Codes Menu Use PIN Skip PIN...
  • Page 24 More / Defaults A wide range of default values can be set in this menu, including startup listen and send selections, startup volume and settings to integrate a surround system. Display parameters such as home page, timeout and brightness, language, and whether volume is displayed in decibels or 0..99.
  • Page 25     More Defaults Volume Trim Input X Trim -10 ..Trim +10     More Defaults Volume Start Mute -63dB ..-0dB     More Defaults Volume Mute -63dB ..-0dB   ...
  • Page 26 Nominally unity gain for surround systems where an input has a fixed volume level and all adjustments are made on the surround processor. The audio performance of the Trilogy 903 pre-amp benefits from the lack of closed loop control of the pre-amp gain, hence the gain will vary depending on the valves. This setting allows fine tuning of the unity gain, or adjustment to a value which is not unity.
  • Page 27    More Defaults Input Input 1 Input 2 Input 3 Input 4 Input 5 Input 6    More Defaults Film In Nofilm Input 1 Input 2 Input 3 Input 4 Input 5 Input 6   ...
  • Page 28 More / Defaults / Output The default output is selected when power is applied to the 903. The preamplifier does not have to be turned on. This operation is quite deliberate. Whether the preamplifier is on or in standby, it was felt important to maintain the currently selected record source so a recording can continue.
  • Page 29    More Defaults Balance Bal <15 ..Bal <1 Bal Centre Bal >1 ..Bal >15     More Defaults Display Home On Blank Logo Time Volume Input  Home off Blank Logo Time  Timeout 30 secs 60 secs 90 secs...
  • Page 30 With any of the above displayed, press [enter] to see the current setting and make changes. The options for are a blank screen, the Trilogy logo, time of day, volume or input name. It is not logical for the 903 Home On to display volume or input when it is switched off, so does not offer these options.
  • Page 31     More Defaults Display dB or 0..99 Vol dB Vol 0..99  Language English 01 Not fitted    More Defaults Warm Mode Warm off Warm on     More Defaults External Bus power Pwr on Pwr off ...
  • Page 32 By default, warm mode is off. When enabled, a short press of the power button turns the 903 on, a short-press when on puts it into warm mode, a long press when on or warm will turn the equipment off. For the 903 alone, warm mode simply mutes the preamplifier and is not of great benefit.

  • Page 33: Names

      More Names Inputs External     More Names Inputs 1Input 1 Input 1  2Input 2 Input 2  3Input 3 Input 3  4Input 4 Input 4  5Input 5 Input 5  6Input 6 Input 6...
  • Page 34 More / Names Inputs are named here. Where Trilogy peripherals are installed on TAS link and can be named, this is also done in these menus. [enter] for , to name the six inputs. The option to give names to TAS link devices relies on suitable devices Inputs being connected.
  • Page 35    More Names External 01..24.
  • Page 36 01 (or other) displayed, TAS link connected units should have their front panel LEDS mostly off with a short flash on. This indicates the unit's button is temporarily not used for on/off and can be used to ‘grab’ an ID number from the 903. If you need to switch off the remote devices during this time, for example due to excessive audio levels, use the 903 power button to switch off both the 903 preamplifier and connected devices.

  • Page 37: Tools

      More Tools Int status Ext status Bus status Version Bond Unbond IR Code Factory    More Tools Int status Valve Timer    More Tools Graph Graph    ..More Tools Ext status ...
  • Page 38 ID 01 and advance from there until it finds a unit which can report its status. At the maximum, ID 24, the status check wraps round to ID 01. As an example, the Trilogy 993 is a power amplifier that can be paired with the 903 and its status includes a live power graph, heatsink temperature and a counter for the number of times the over-current protection circuit has operated.
  • Page 39   More Tools Bond   More Tools Unbond    More Tools IR Code IR-- ---...
  • Page 40 Display These display the versions of the two controllers in the 903, although any TAS link connected display will show its own local software version. The external option will display the serial number / version of TAS link equipment that has been named —...
  • Page 41    More Tools Factory Restore?
  • Page 42 Power Mute Volume up Volume down Menu up Menu down Time To aid fault finding with any remote control, the page shows the received two digit system code and two digit IR Code command as decimal numbers for any RC5 IR code received. The toggle bit that shows separate key remote presses is indicated with a T suffix.

  • Page 44: Tas Link

    TAS link has a bus remote line (GPI) allowing equipment from other manufacturers to be powered on/off by the 903, or allow the 903 to be turned on by another system.

  • Page 46: Low Speed (Quiet) Bus

    Bus remote LSD local LSW Bus Diagnostics using these LEDs are possible, as part of Trilogy dealer training. You may be asked to look at these LEDs as part of any telephone support. Front Panel Warning LEDs Dots on the right of the front panel display are used to indicate problems. The centre right LED will flash if TAS link attached equipment capable of error reporting has a problem.

  • Page 48: Appendix A Tas Link Pinout

    Appendix A TAS link Pinout RJ45 CAT5 COLOUR FUNCTION Orange/white BUS POWER White/orange Green/white White/green Blue/white DATA+ White/blue DATA- Brown/white BUS REMOTE White/brown...

  • Page 50: Appendix B Default Settings

    Appendix B Default Settings More Cartridge Gain 40dB More Cartridge 47 kohms More Cartridge none More Time Sleep Sleep Off More Time Timers All disabled More Defaults PIN Codes Power Up Use PIN More Defaults PIN Codes Menu Skip PIN More Defaults Volume...

  • Page 52: Cleaning

    It is good practice for your dealer to replace the valves in your preamplifier periodically to prevent sudden loss of a signal path and to maintain optimum performance. If you are in any doubt your Trilogy dealer will help you assess whether your valves need replacing.

  • Page 53: Glossary

    The ability to hold an electrical charge, resulting in loops. decreasing impedance with frequency. link Trilogy Audio Systems’ proprietary Link between Gain The ability of a circuit to increase the power or products. amplitude of a signal from the input to the output.

  • Page 54: Returns

    Returns Should it be necessary for your 903 to be serviced, please send it in the original packaging to your dealer. If this is not possible please contact us directly and request a Return Authorisation Number. Please mark this number in the space provided on the outer packaging.

  • Page 55: Acknowledgments

    Acknowledgements Many people have worked tirelessly to help bring the 903 to you, and I would like to take this opportunity to thank - Emeka Chigbu, Nigel Crump, Simon Dart, Chris Sims and Simon Quill for their dedication to this project.
  • Page 56 Designed & Manufactured in London, England. MADE IN UK USER MANUAL 903.26092016.V1...

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