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Boulder 2020 Owner's Manual

Advance d/a converter
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Summary of Contents for Boulder 2020

  • Page 2 Boulder 2020 Advance D/A Converter Owners Manual V1.2 8/1/98...

  • Page 3: Table Of Contents

    Placement of your 2020 D/A Converter ........
  • Page 4 PROGRAMMING Program Mode ............. .4-1 Inputs .

  • Page 5: Getting Started

    GETTING STARTED PLACEMENT OF YOUR 2020 D/A CONVERTER Your Boulder 2020 is designed to reduce interference from external mag- netic and radio fields (RF). While placement is not critical, known magnetic fields should be avoided. Line of sight from the listening position is necessary for the remote control to function properly.

  • Page 6: Connecting The Power Supply To The Main Chassis

    CONNECTING THE POWER SUPPLY TO THE MAIN CHASSIS Your Boulder 2020 Converter is sup- plied with a Boulder 2000 Triple Power Supply. Each of the three supplies is independent of the others except for the front panel LED which confirms correct power supply operation of all three sup- plies.

  • Page 7: Connecting To The Mains Outlet

    CONNECTING TO THE MAINS OUTLET Your 2000 Power Supply is supplied with a mains cord suitable to the loca- tion where it was purchased. One of the features of the 2000 is its universal automatic voltage-selecting power supply. Simply plug it into any standard outlet. (Exact voltage and fre- quency compatibility is stated in the specifications section.) GETTING STARTED...

  • Page 8: Connecting A Hardwire Digital Audio Source

    Each input may be converted to unbalanced 75Ω coax by the use of a Boulder Digital Input Adapter. This adapter has a special internal network to properly terminate the cable, and must not be...

  • Page 9: Connecting An Optical Digital Audio Source

    CONNECTING AN OPTICAL DIGITAL AUDIO SOURCE Two optical inputs are also provided on the main chassis– a glass fiber con- nection known as “ST Glass” and a plastic fiber known as “Toslink.” Remove the protective caps before trying to insert the connector. (Store the caps in a safe place.) The “ST Glass”...

  • Page 10: Connecting To A Balanced Input Preamplifier

    “MAIN OUTPUT” on the chan- nel audio assemblies to the inputs on your preamplifier. POLARITY Please note that your Boulder 2020 Converter conforms to the new stan- dard of pin 2 as the high or hot pin for all balanced outputs. GETTING STARTED...

  • Page 11: Connecting To An Unbalanced Input Preamplifier

    CONNECTING TO AN UNBALANCED INPUT PREAMPLIFIER The Boulder series Output Adapting Cables may be used to connect the balanced converter outputs to an unbalanced preamplifier input. This cable connects pin 1 to the shield and pin 2 to the center pin. It leaves the out- put pin 3 unconnected.

  • Page 12: Connecting To An Analog Recording Device

    CONNECTING AN ANALOG RECORDING DEVICE If desired, the “REC OUTPUT” on each channel audio assembly may be connected directly to a recording device, thus bypassing a preamplifier. This out- put will always have the same digital source as the main output. Right Analog Record Output Left Analog Record Output GETTING...

  • Page 13: Operation

    OPERATION POWERING UP With all your connections made, you are ready to listen to your Boulder 2020 Converter. Push on the upper portion of the rocker switch on the rear panel of the 2000 Triple Power Supply. The indicator on the supply will first turn red, then amber.

  • Page 14: Input Selections

    INPUT SELECTIONS Select an input by pressing one of the pushbuttons labeled ONE through SIX. The respective input will be displayed in the display and that signal will be routed to the audio assemblies outputs. For example, if input one is chosen, “1.

  • Page 15: Display

    DISPLAY The display brightness may be set to any of 8 brightness levels and also completely off. To change the brightness level, press the DISPLAY pushbutton. “DISPLAY 8” will show in the display. Continue pressing the DISPLAY pushbutton until the desired brightness is obtained such as “DISPLAY 6.” The number in the display will reflect the relative brightness.

  • Page 16: Advance

    While some correction for these problems can be made using only a bal- ance control on a preamplifier, the ultimate solution is to use that balance con- trol together with the time advance feature. The 2020’s advance feature works in time similar to the way a balance control works in level.
  • Page 17 Let us assume that “INCHES” is chosen as the units of advance. To advance the left channel, press the L ADVANCE pushbutton. “ADV 0.00’’” will show in the display. Holding down the L ADVANCE pushbutton will cause increasingly higher numbers of advance until the button is released. The advance can be further increased in the left channel or swept through 0 and then start advancing the right channel by use of the L ADVANCE and R ADVANCE pushbuttons.
  • Page 18 To verify this by listening, press the L ADVANCE pushbutton until “ADV L 23.67’’” appears in the display. Now by successive presses of the ADVANCE pushbutton, the advance will be turned on and off as indicated by the display. First try sitting in the center with the advance turned off. Listen to the music and get a mental picture of the image.

  • Page 19: Digital Maximum Indication

    Similarly, all digital sources have an inherent maximum numerical limit in the recording process. A special circuit which detects that this limit was reached is included in your Boulder 2020 D/A Converter. If “DIG MAX ON” is selected in the programming mode, then “DIGITAL MAX”...

  • Page 20: Remote Control

    To separate sections, loosen the screws while slowly pulling the battery 2 Modules pack from the 2020 module. Slide the battery pack off the screws. Then slide the module off the screws. Once all sections are removed from the transmitter, you may remove the screws from the transmitter.
  • Page 21 To reassemble the remote control, insert the 2-module screws into the transmitter section first. Carefully slide the module you want at the top onto the screws. Continue to push it up to the transmitter allowing the connector to engage. Slide the next module onto the screws.
  • Page 22 Continue to push the second module up to the first module allowing the con- nector to engage. Slide the battery pack onto the screws just enough so that the screws can be started simultaneously. Use the special screwdriver to tight- en the screws, drawing up the battery pack.
  • Page 23 When finished, be certain to keep the original single-module screws and screwdriver for future use. REMOTE CONTROL...

  • Page 24: Batteries

    BATTERIES It is not necessary to remove the above mentioned screws to install bat- teries in the remote control. However, a standard #1 Phillips screwdriver is required to install the 3 AAA batteries. Turn the remote control over and remove the two screws located on the cover of the battery pack (the bottom module).

  • Page 25: Operation

    REMOTE CONTROL OPERATION Operation of the Boulder 2020 D/A Converter by remote control uses but- tons on both the transmitter and 2020 module sections. REMOTE CONTROL...
  • Page 26 SOURCE SELECTION To select an input (source) press the button marked SRC on the converter module. While “ENTER SOURCE” is then showing in the display, press the desired input number (1-6) on the transmitter module. You will now be listen- ing to your desired source, and it will be showing in the display.
  • Page 27 from 1 to 9 on the transmitter module. The display will return to the advance setting chosen. To recall an advance setting, press the MEM button. While “LOAD MEM- ORY #” is showing in the display, press the desired memory number. The dis- play will show the new advance setting recalled from memory.
  • Page 28 PROGRAMMING While it is not necessary to ever use any optional programming functions, you will probably find them helpful in using your Boulder 2020 Converter. All programming is done by pressing the PROGRAM pushbutton which causes “PROGRAM MODE” to be shown in the display. This is the starting point for all of the following programming options.

  • Page 29: Programming

    Press the same input source number to accept the displayed character and go to the next character. Continue in this manner until all 10 characters are set. For example, “1.Boulder CD” can be used for the Boulder Series 2000 CD Transport.

  • Page 30: Advance Parameter

    ADVANCE PARAMETER The time and distance units used in the advance feature can be pro- grammed for one of three choices. From “PROGRAM MODE” press the ADVANCE pushbutton. As you con- tinue to successively press the ADVANCE pushbutton, “INCHES,” “CEN- TIMETERS,”...

  • Page 31: Digital Maximum Indication

    DIGITAL MAXIMUM INDICATION The digital maximum detector can be turned on or off. From “PROGRAM MODE” press the DISPLAY pushbutton. “DIG MAX OFF” will show in the display. As you continue to successively press the DISPLAY pushbutton, “DIG MAX ON” and “DIG MAX OFF” will alternately be displayed. When your desired mode is shown, press the PROGRAM pushbutton to set your selection and return to normal mode.

  • Page 32: Master Reset

    To leave all settings as they currently are, press the TWO pushbutton. To reset all settings, press the ONE pushbutton. All other pushbuttons are inoperative during this time. The 2020 Converter will then return to normal operating mode. PROGRAM-...

  • Page 33: Programming From The Remote Control

    PROGRAMMING FROM THE REMOTE CONTROL Programming may also be conveniently done from the remote control. Similar to programming from the front panel, all programming is done by pressing the PGM button which causes “PROGRAM MODE” to be displayed in the left display. You may leave program mode at any time by again pressing the PGM pushbutton.

  • Page 34: Advance Parameter

    Press the SRC button to return to the program mode starting point. Press PGM to return to normal mode. ADVANCE PARAMETER From “PROGRAM MODE” press the ADV pushbutton. As you continue to successively press the ADV pushbutton, “INCHES,” “CENTIMETERS,” and “MILLISECONDS”...

  • Page 35: Using A Digital Audio Recorder

    Each output may be converted to unbalanced 75Ω coax by the use of a Boulder XXXX Digital Output Adapter. This adapter has a special internal net- Digital Output 2 work to properly match the level and...

  • Page 36: Record Out Connection

    RECORD OUT CONNECTION A digital audio recording device may be connected to the Boulder 2020 Converter. A digital audio output labeled “DIGITAL OUTPUT 2” is provided on the main chassis rear panel. Connect this to the input of your recording device.

  • Page 37: Programming For Recording

    PROGRAMMING FOR RECORDING Instead of having hardware-dedicated inputs for playback (tape) monitors, any input may be chosen for this purpose through software selection. Connect the outputs of these recorders to any of the 6 inputs you choose. Then for the chosen input, follow the instructions in the programming sec- tion for inputs until “...RECORDABLE”...

  • Page 38: Appendix

    DIGITAL OUTPUT 1 SELECT DIGITAL OUTPUT 2 CHANNEL CHASSIS I TO V ANTI-IMAGING FILTER WORD CLOCK FIVE CONVERTER (6 POLE BESSEL) PARALLEL BURR BROWN 1702 BIT CLOCK MAIN AND RECORD BALANCED DATA OUTPUT BOULDER 2020 ADVANCE CONVERTER AUDIO BLOCK DIAGRAM APPENDIX...

  • Page 39: Specifications

    BOULDER 2020 ADVANCE D/A CONVERTER SPECIFICATIONS Digital Inputs 4 AES/EBU, Converts to SPDIF 1 ST Glass Fiber 1 Toslink Digital Outputs 2 AES/EBU, Converts to SPDIF Sampling Rates 32, 44.1, 48 kHz Decoding System 20 bit, 8X oversampling Converters per Channel...

  • Page 40: Troubleshooting

    TROUBLESHOOTING ______________________________________________________________________________________________________________ SYMPTOM CAUSE REMEDY ______________________________________________________________________________________________________________ No power indication Power switch is not on Turn on power switch _________________________________________________________________________ Converter is not plugged in Connect to an AC outlet _________________________________________________________________________ Home circuit breaker is tripped Reset circuit breaker ______________________________________________________________________________________________________________ Red power indication Low line voltage Have line voltage checked _________________________________________________________________________...

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