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Wheatstone A-6000 Technical Manual

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A-6000 Audio Console
T
M
ECHNICAL
ANUAL
600 Industrial Drive, New Bern, NC. 28562
May 1998
(tel 252-638-7000 / fax 252-637-1285)

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  • Page 1 A-6000 Audio Console ECHNICAL ANUAL 600 Industrial Drive, New Bern, NC. 28562 May 1998 (tel 252-638-7000 / fax 252-637-1285)
  • Page 2 A-6000 Radio On-Air Console Technical Manual - 2nd Edition (revised) A-6000 Radio On-Air Console Technical Manual - 2nd Edition (revised) A-6000 Radio On-Air Console Technical Manual - 2nd Edition (revised) A-6000 Radio On-Air Console Technical Manual - 2nd Edition (revised) A-6000 Radio On-Air Console Technical Manual - 2nd Edition (revised) ©1998 Wheatstone Corporation...
  • Page 3 Resistors R36 thru R39 & R58 thru R61 are now .4A polyswitch fuses. CONTROL ROOM MODULE SCHEMATIC AND LOAD SHEET: Resistors R204-R207 (24Ω) have been changed to polyswitches F2 and F3 (.17A). A-6000 / Nov 00 Addenda - Page 1...
  • Page 4 600 Industrial Drive DRAWN 12-6-00 New Bern, NC 28562 CHECKED 13S0039 SIZE FSCM NO. DWG. NO. ISSUED SL1X-6000 PCB W# 700230 1 OF 1 SCALE SHEET Stereo Line Input Module Fix Card Schematic - Sheet 1 of 1 Page 1-1 A-6000/Dec 2000...
  • Page 6 600 Industrial Drive DRAWN 12-6-00 New Bern, NC 28562 CHECKED 13S0041 SIZE FSCM NO. DWG. NO. ISSUED SPH2X-6000 PCB 1 OF 1 W# 700233 SCALE SHEET SPN-6000 Super Phone Module Fix Card Schematic - Sheet 1 of 1 Page 1-1 A-6000/Dec 2000...
  • Page 8 Module Removal Tools Your Wheatstone audio console is equipped with two "module extractor tools" which are mounted in the front panel of the console mainframe. All modules are held into the console mainframe by two mounting screws (top and bottom) which, when removed, leave specially threaded holes that accept the two extractor tools.

  • Page 9: Table Of Contents

    Superphone (SPN-6000) ..................1-9 Intercom (ICM-6000) .................... 1-9 Stereo Line Preselector (LS-6000) ............... 1-10 Tape Remote (TR-6000) ..................1-10 The Console Mainframe ..................1-10 The Console Meterbridge ..................1-10 The I/O Connector System .................. 1-10 A-6000 / May 94 Contents - 1...
  • Page 10 Audio Connections .....................3-27 Intercom Module (optional) (ICM-6000) I/O Pinout Diagram ....................3-28 Audio & Control Connections ..................3-29 Stereo Line Selector Module (optional) (LS-6000) I/O Pinout Diagram ....................3-30 Audio Connections .....................3-31 A-6000 / May 94 A-6000 / Aug 99 Contents - 2...
  • Page 11 Intercom (optional) ......................4-16 Stereo Line Selector (optional) ..................4-17 Superphone (optional) ....................4-18 Tape Remote (optional) ....................4-20 CHEMATIC RAWINGS A-6000 Performance Specifications ................5-2 Console Bus Chart .......................5-3 Mono Mic/Line Input bus chart ........................5-4 schematic (5 pages) ......................5-5 schematic (IPS-6000A) ....................5-6 schematic (w/optional EQ) ...................5-6a Stereo Line Input bus chart ........................5-7...
  • Page 12 Typical Unbalanced Connections (dwg) ..............A-2 NOTES ON LEVEL MEASUREMENT ..............A-3 TROUBLESHOOTING ....................A-3 Basic Procedures .....................A-3 Testing a “Live” Console – Precautions ..............A-3 Integrated Circuits ....................A-4 OTHER DETAILS .......................A-5 EXTERNAL SOURCE MACHINE INTERFACES ...........A-6 A-6000 / May 94 A-6000 / Jul 02 Contents - 4...
  • Page 13 Fidelipac DCR 1000 Floppy Cart Player ..............A-13 Sony MDS-B3 Player ..................... A-15 ADDITIONAL INFORMATION ................A-16 SL-6000 OFF Circuit Modification ................A-16 Double Connection to One Pin Wiring Procedure ............A-17 A-6000 / May 94 A-6000 / Apr 99 Contents - 5...
  • Page 14 Telephones ................. 1-9 Superphone (SPN-6000) .............. 1-9 Intercom (ICM-6000) ..............1-9 Stereo Line Preselector (LS-6000) ..........1-10 Tape Remote (TR-6000) ..............1-10 The Console Mainframe .............1-10 The Console Meterbridge ............1-10 The I/O Connector System ............1-10 A-6000 / Nov 93 Page 1 - 1...

  • Page 15: Overview

    The A-6000 On-Air Broadcast Console VERVIEW The A-6000 has been engineered spe- telephone formats. The modules can cifically for major market stations that have two, three or four stereo program demand a lot of function and need to lead assign buttons. You can have a stereo EATURES with technical excellence.

  • Page 16: Stereo Input Modules (Sl-6000)

    CUE button or a combina- A-6000 even seldom used rial. (Each input module does, tion of CUE and SOLO buttons. SOLO...

  • Page 17: Machine Sequence

    (“off” lamp), START independent or switches; you can logic-select this bank to and the mix-minus section. It’s dependent SEND ON button, START indepen- follow or break away from the channel START like pre-engineered customi- zation. A-6000 / Nov 93 Page 1 - 4...

  • Page 18: Microphone Modules (Ml-6000)

    POST switch, so you have the precise, stable and trimmer free ADER choice of the mix-minus behavior CMRR—even at high frequen- The A-6000 uses only you want. You even have a choice cies, where the older discrete conductive plastic long- of mix-minus follow or break-away...

  • Page 19: Equalization

    A - 6 0 0 0 A u d i o C o n s o l e MODE QUALIZATION 3.5K Wheatstone got its start as an equalizer company, and we have SOURCE SOURCE applied the best of our well-known, smooth-sounding technology to this console.

  • Page 20: Outputs And Metering (Om-6000/Mo-6000)

    TIMER allowing the counter to con- more error-free working tinue in the background. Re- environment. leasing the button will then display the current count. A-6000 / Nov 93 Page 1 - 7...
  • Page 21 MONO MONO channels, so you can monitor stereo, of Wheatstone consoles or rack mono, left only or right only sources. stations to easily communicate. ALLYS STEREO STEREO You won’t run out of tally cir-...
  • Page 22 A - 6 0 0 0 A u d i o C o n s o l e ELEPHONES NTERCOM The A-6000 gives you a choice of approaches to dealing with phones: The ICM-6000 module is part of an integrated READY Bus-Minus®...
  • Page 23 AINFRAME Perhaps the greatest option to the Standard mainframe sizes accommo- A-6000 mainframe is that it has no options. date 18, 22, 24 or 32 inputs and 6 acces- All module slots are configured exactly the sory positions. But, since the A-6000 is a...

  • Page 24: Ainframe Nstallation

    Begin by unpacking and locating these items. Do not connect the A-6000 console to its power supply (and do not connect the power supply to the AC power line) until instructed to do so.

  • Page 25: System Ground

    SYSTEM GROUND Note that as supplied from the factory the console power supply common, audio common, and the A-6000 chassis are connected together at the console mainframe, but are NOT connected to electrical ground and the chassis of the power supply. Safety requirements dictate that a positive connection from the console mainframe to electrical ground be made in the completed installation;...

  • Page 26: Typical Grounding Scheme (Dwg)

    10-32 screws and insulating washers between rails and faceplates. Once the system is properly grounded, proceed with the console power supply installation and connection (next section). A-6000 / Nov 93 Page 2 - 3...

  • Page 27: The Console Power Supply

    (see “System Ground” section). Note that while the AC power It is usually orange in color. cord ground wire terminates at the power supply chassis, it does NOT connect to the A-6000 console common; the console itself must be grounded separately. (See previous section: “System Ground”.) POWER SUPPLY FUNCTIONS +48V LED –...

  • Page 28: Dual Redundant Fail-Safe Supply

    (next chapter). wire up audio and control connections (next chapter). wire up audio and control connections (next chapter). wire up audio and control connections (next chapter). A-6000 / Nov 93 A-6000 / Aug 99 Page 2 - 5...

  • Page 29: Console I/O Connections

    Superphone Module (optional) (SPN-6000) I/O Pinout Diagram ..............3-32 Audio Connections ..............3-33 Control Connections ..............3-34 Dipswitch Controlled Functions ..........3-34 Tape Remote Module (optional) (TR-6000) I/O Pinout Diagram ..............3-36 Audio Connections ..............3-37 A-6000 / Nov 93 A-6000 / May 94 Page 3 - 1...

  • Page 30: General

    I/O C ONSOLE ONNECTIONS GENERAL All audio and control I/O connections to the A-6000 console are made through multipin connectors (DB-25 and DB-9 type) located on the bottom of the console mainframe. The Insulation Displacement Connector System The I/O wiring interface system is based on insulation displacement technology.

  • Page 31: Connection Procedures

    LOWER is the row of connectors closest to the armrest. Balanced versus Unbalanced Connections See pages 2 and 3 of the APPENDIX for information on hooking up unbalanced equipment to the A-6000 console. A-6000 / Jan 97 A-6000 / Nov 93 Page 3 - 3...
  • Page 32 A DIGITAL COMMON A ON SWITCH A OFF SWITCH A ON TALLY A OFF TALLY A TB-TO-CR A COUGH Lower DB-25 Connector Mono Input Module I/O Connector Pinouts A-6000 / Nov 93 A-6000 / June 00 Page 3 - 4...

  • Page 33: Mono Mic/Line Input Module (Ml-6000)

    A OFF SWITCH A OFF SWITCH SWITCH SWITCH - When user-supplied circuitry provides a closure A OFF SWITCH to "A DIGITAL COMMON" (Pin 4 or 17) this port turns the module OFF. A-6000 / Nov 93 Page 3 - 5...
  • Page 34 "B DIGITAL COMMON" (Pins 10 or 23) this control port causes the module signal to be sent to the console's talkbalk bus for as long as the closure is maintained. PINS 6,12,13,18,19,24,25: N/C A-6000 / Nov 93 A-6000 / June 00 Page 3 - 6...
  • Page 35 IFB output (UP is off, DOWN is on). SW5 – Determines whether the module's IFB signal will be tapped pre or post fader/channel ON-OFF/panpot (UP is pre, DOWN is post). A-6000 / Nov 93 A-6000 / Jan 97 Page 3 - 7...
  • Page 36 SW16 Position 7 – Timer Restart PHANTOM POWER SW6 (seven-position) turns +48VDC phantom power on (UP position) and off (DOWN position). Position 1 controls microphone input A, and position 2 microphone B. A-6000 / Nov 93 A-6000 / Apr 98 Page 3 - 8...
  • Page 37 A START/STOP COMMON A OFF + A STOP A OFF – A START A ON + A READY + A ON – A READY – Lower DB-25 Connector Stereo Input Module I/O Connector Pinouts A-6000 / Nov 93 Page 3 - 9...

  • Page 38: Stereo Line Input Module (Sl-6000)

    Pin 3 - DIRECT OUT LEFT LOW connector. Pin 8 - DIRECT OUT LEFT SHIELD Pin 4 - IFB OUT HIGH Pin 9 - IFB OUT LOW Pin 5 - IFB OUT SHIELD A-6000 / Nov 93 Page 3 - 10...
  • Page 39 UP towards the module faceplate and RT pointing to the bottom of the module, where the channel ON/OFF switches are located.) A-6000 / Nov 93 Page 3 - 11...
  • Page 40 REMOTE ON/OFF - START/STOP DISABLE SW6 - Disables the SL-6000's machine START/STOP outputs when this SL-6000 module is remotely turned ON or OFF. A-6000 / Nov 93 A-6000 / Oct 01 Page 3 - 12...
  • Page 41 SW17 (Position 4) – Timer Restart ("B") SW17 (Position 5) – Studio 1 Mute ("A") SW17 (Position 6) – Control Room Mute ("A") SW17 (Position 7) – Timer Restart ("A") A-6000 / Nov 93 A-6000 / Oct 01 Page 3 - 13...
  • Page 42 SPEECH INSERT IN LEFT LOW SPEECH INSERT IN LEFT HIGH SPEECH INSERT IN RIGHT SHIELD SPEECH INSERT IN RIGHT LOW SPEECH INSERT IN RIGHT HIGH Lower DB-25 Connector Output Module Number One I/O Connector Pinouts A-6000 / Nov 93 Page 3 - 14...
  • Page 43 Pin 7 - MXM A OUT, HIGH Typical DB-9 Pin 2 - MXM B OUT, SHIELD connector. Pin 6 - MXM B OUT, LOW Pin 1 - MXM B OUT, HIGH Pins 4, 5, & 9 - N/C A-6000 / Nov 93 Page 3 - 15...
  • Page 44 DOWN the speech insert patch points are in the module's located. signal chain. SW3 – Bus-Minus Assign – When the switch is DOWN the module's MXM B signal is assigned to the console's Bus-Minus ACN. A-6000 / Nov 93 Page 3 - 16...
  • Page 45 SPEECH INSERT IN LEFT LOW SPEECH INSERT IN LEFT HIGH SPEECH INSERT IN RIGHT SHIELD SPEECH INSERT IN RIGHT LOW SPEECH INSERT IN RIGHT HIGH Lower DB-25 Connector Output Module Number Two I/O Connector Pinouts A-6000 / Nov 93 Page 3 - 17...
  • Page 46 Pin 7 - MXM C OUT, HIGH connector. Pin 2 - MXM D OUT, SHIELD Pin 6 - MXM D OUT, LOW Pin 1 - MXM D OUT, HIGH Pins 4, 5, & 9 - N/C A-6000 / Nov 93 Page 3 - 18...
  • Page 47 DOWN the speech insert patch points are in the module's channel ON/OFF switches are signal chain. located. SW3 – Bus-Minus Assign – When the switch is DOWN the module's MXM D signal is assigned to the console's Bus-Minus ACN. A-6000 / Nov 93 Page 3 - 19...
  • Page 48 EXT 4 IN LEFT LOW EXT 4 IN LEFT HIGH EXT 4 IN RIGHT SHIELD EXT 4 IN RIGHT LOW EXT 4 IN RIGHT HIGH Lower DB-25 Connector Control Room Module I/O Connector Pinouts A-6000 / Nov 93 Page 3 - 20...
  • Page 49 Pin 1 - TALLY 1 COLLECTOR Typical DB-9 Pin 7 - TALLY 2 EMITTER connector. Pin 2 - TALLY 2 COLLECTOR Pin 8 - TALLY 3 EMITTER Pin 3 - TALLY 3 COLLECTOR Pin 5 - GROUND A-6000 / Nov 93 Page 3 - 21...
  • Page 50 Headphone Mode (2-position slide switch) SW5: Left - STEREO (factory default), Right - MONO Cue Mode (2-position slide switch) SW3: Up - MONO, Down - STEREO (factory default) A-6000 / Nov 93 A-6000 / Apr 98 Page 3 - 22...
  • Page 51 EXT 4 IN LEFT LOW EXT 4 IN LEFT HIGH EXT 4 IN RIGHT SHIELD EXT 4 IN RIGHT LOW EXT 4 IN RIGHT HIGH Lower DB-25 Connector Studio Control Module I/O Connector Pinouts A-6000 / Nov 93 Page 3 - 23...
  • Page 52 Pin 1 - TALKBACK 2, CONTROL Pin 2 - TALKBACK 2, CONTROL COMMON Pin 3 - STUDIO 1 TO STUDIO 2 TALKBACK Pin 6 - STUDIO 2 TO STUDIO 1 TALKBACK A-6000 / Nov 93 Page 3 - 24...
  • Page 53 SW4 (Position 4) – STUDIO 1 MUTE SW4 (Position 3) – STUDIO 2 MUTE SW4 (Position 2) – STUDIO 3 MUTE SW4 (Position 1) – STUDIO 4 MUTE (TALLY 3) A-6000 / Nov 93 A-6000 / May 94 Page 3 - 25...
  • Page 54 EXT 2 INPUT LEFT LOW EXT 2 INPUT LEFT HIGH EXT 2 INPUT RIGHT SHIELD EXT 2 INPUT RIGHT LOW EXT 2 INPUT RIGHT HIGH Lower DB-25 Connector Meter Output Module Connector Pinouts A-6000 / Nov 93 Page 3 - 26...
  • Page 55 Pin 15 - EXTERNAL LINE 2 IN LEFT, HIGH Pin 2 - EXTERNAL LINE 2 IN RIGHT, SHIELD Pin 14 - EXTERNAL LINE 2 IN RIGHT, LOW Pin 1 - EXTERNAL LINE 2 IN RIGHT, HIGH A-6000 / Nov 93 Page 3 - 27...
  • Page 56 2-WAY AUDIO OUT SH 2-WAY AUDIO OUT LO 2-WAY AUDIO OUT HI EXT SPKR OUTPUT SH EXT SPKR OUTPUT LO EXT SPKR OUTPUT HI OUTPUT PORTS Intercom Module I/O Connector Pinouts A-6000 / Nov 93 A-6000 / May 94 Page 3 - 28...
  • Page 57 Station call line 8 is pin #9 External +V feed is pin #24 External -V feed is pin #12 Additional audio commons at pins #5,8,11,19,22,25 Pin 13 is N/C A-6000 / Nov 93 A-6000 / May 94 Page 3 - 29...
  • Page 58 LINE 8 LT IN HI LINE 8 RT IN SH LINE 8 RT IN LO LINE 8 RT IN HI Lower DB-25 Connector Stereo Line Selector Module I/O Connector Pinouts A-6000 / Nov 93 A-6000 / May 94 Page 3 - 30...
  • Page 59 Pin 16 - LINE 8 IN LT shield Pin 1 - LINE 8 IN RT high Pin 14 - LINE 8 IN RT low Pin 2 - LINE 8 IN RT shield A-6000 / Nov 93 A-6000 / May 94 Page 3 - 31...
  • Page 60 TAPE START/STOP COMMON TAPE START/STOP COMMON TAPE STOP TAPE STOP TAPE START TAPE START TAPE RECORD READY TAPE RECORD READY Lower DB-25 Connector Superphone Module I/O Connector Pinouts A-6000 / Nov 93 A-6000 / May 94 Page 3 - 32...
  • Page 61 Output feed to Hybrid 2 low is pin #6 Output feed to Hybrid 2 shield is pin #19 Audio Common is on pin #13 Pin #5 is N/C A-6000 / Nov 93 A-6000 / May 94 Page 3 - 33...
  • Page 62 Dipswitches "SW7, SW8, SW9 and SW10" UTL, AUX, AUD and PGM CALLER FEEDS - These four switches determine which of the console's output busses will be heard by callers. A-6000 / Nov 93 A-6000 / May 94 Page 3 - 34...
  • Page 63 Position 7: TIMER RESTART - When activated, whenever the module's channel ON switch is pressed, the console timer automati- cally resets to zero and starts counting up. A-6000 / Nov 93 A-6000 / May 94 Page 3 - 35...
  • Page 64 SW 4 LED + SW 3 COMMON MACHINE 2 SW 3 N.O. SW 3 LED – SW 3 LED + Lower DB-25 Connector Tape Remote Module I/O Connector Pinouts A-6000 / Nov 93 A-6000 / Aug 96 Page 3 - 36...
  • Page 65 Pin 11 - SW 8 LED + Pin 24 - SW 8 LED - Pin 12 - SW 8 N.O. Pin 25 - SW 8 COM Pin 13 - N/C A-6000 / Nov 93 A-6000 / May 94 Page 3 - 37...
  • Page 66 Timer Control ..................4-12 Clock Control .................. 4-12a Control Room Monitor ..............4-13 Studio Control (optional) ..............4-15 Intercom (optional) ................4-16 Stereo Line Selector (optional) ............4-17 Superphone (optional)..............4-18 Tape Remote (optional) ..............4-20 A-6000 / Nov 93 A-6000 / May 95 Page 4 - 1...
  • Page 67 STEREO or MONO mono sends, an electronically controlled multiple input switcher with front panel alpha-numeric display, and the Wheatstone Bus-Minus® IFB option, SEND which allows each input module to generate its own separate mix-minus feed.
  • Page 68 The direct output signal is taken post fader/channel on-off. MIX-MINUS ASSIGN (INTERNAL) The A-6000 console is equipped with four separate mix-minus busses, individually accessible via internal dipswitch programming at each input module. Each MXM bus assignment can be dipswitch-programmed for a PRE or POST fader/channel on-off audio tap.
  • Page 69 ON button is pressed, preventing potential feedback problems within the control room itself. An optional bottom-of-travel fader overpress switch can also be used to place the module in CUE mode. ML-6000 A-6000 / Nov 93 Page 4 - 4...
  • Page 70 B source select switching. Thus each function is available at two source locations. Channel on-off switches can also control remote A & B on and off tally indicators. (See page 3-8 for more information.) ML-6000 A-6000 / Nov 93 Page 4 - 5...
  • Page 71 1 STEREO (ADD/ POST PRESET PRE POST SUBTRACT) ON FET SW BUS-MINUS STEREO DIR OUT LINE INPUT ALTERNATE TO MODE SELECT: STEREO EQ Stereo Line Input Module Signal Flow Diagram START SL-6000 A-6000 / Nov 93 Page 4 - 6...
  • Page 72 MIX-MINUS ASSIGN (INTERNAL) START The A-6000 console is equipped with four separate mix-minus busses, individually accessible via internal dipswitch programming at each input module. Each MXM bus assignment can be dipswitch-programmed for a PRE or POST fader/balance/channel on-off audio tap. In both cases this audio tap is a L+R summed version of the module's stereo signal.
  • Page 73 Stop (or Off) switch indicator light (solid-state) can run under local or external control, and SEND, AUX, UTIL, and MXM can follow or break away from START switch logic. See page 3-13 for more information. SL-6000 A-6000 / Nov 93 Page 4 - 8...
  • Page 74 STEREO INPUT STEREO FADER Long-throw (104mm) conductive plastic. May be supplied with optional bottom-of- throw overpress switch. START SL-6000 A-6000 / Nov 93 Page 4 - 9...

  • Page 75: Gain Trim

    ODULES OUTPUT MASTERS (OM-6000) Each A-6000 console has two output master modules: Master A handles Program and Auxiliary, Mix-Minus A & B, Send 1 and Mono 1. Master B handles Audition and Utility, Mix-Minus C & D, Send 2 and Mono 2. All outputs are calibrated with front panel multi-turn trimpots (a concealment panel covers the trim settings for security).
  • Page 76 CUE/SOLO EXT1 EXT2 EXT1 S / S MXM A MXM B EXT2 RESET MXM C MXM D CUE LOGIC HOLD SOLO LOGIC TIMER METER MODULE Meter Output Module Signal Flow Diagram MO-6000 A-6000 / Nov 93 Page 4 - 11...
  • Page 77 Useful for read-out notations. HOLD Auto – When activated, any input module so-programmed will reset the timer to zero and begin counting up whenever a module channel on (or start) TIMER switch is pressed. MO-6000 A-6000 / Nov 93 Page 4 - 12...
  • Page 78 GENERAL DESCRIPTION The Wheatstone model CLK-5 clock is a six-digit time-of-day clock with LED display intended for mounting in a Wheatstone audio console or control turret. The clock is designed with CMOS circuits and an on-board crystal-controlled time base oscillator. Numerous jumpers are provided on the clock circuit board to allow for various operational modes, including 12-hour, 24-hour, remote slave, and 60Hz power line or 1Hz referenced timebase.

  • Page 79: Control Room Monitor

    The CR-6000 module is the heart of the console's monitoring systems. It enables the console operator to monitor all of the A-6000's outputs: Sends 1 & 2, the four Mix-Minus feeds (A, B, C & D), Mono 1 & 2, PGM, AUD, AUX and UTL, plus four external stereo line inputs.
  • Page 80 (just below counter height, to keep cords away from the work surface). CONTROL ROOM HEADPHONE A conductive plastic level pot (with on/off switch) controls CR monitor signals. CONTROL ROOM CR-6000 A-6000 / Nov 93 Page 4 - 14...
  • Page 81 STUDIO SEND MXM D MONITOR DIP SW STU 1 MUTE STU 3 MUTE STU 2 MUTE STUDIO 1 STU 4 MUTE (TALLY 4) TB 1 Studio Monitor Module Signal Flow Diagram SC-6000 A-6000 / Nov 93 Page 4 - 15...

  • Page 82: Intercom (Icm-6000)

    The optional ICM-6000 module allows the console operator to communicate with seven other locations; it is compatible with intercom modules available for other Wheatstone console models as well as a special 19-inch rackmount version. Each module is self-powered from its host console; a simple daisy chain interface is all that is required for installation.

  • Page 83: Stereo Line Preselector (Ls-6000)

    FRONT PANEL SWITCHES EXT1 EXT2 EXT3 EXT4 PRE SELECT LOGIC EXT5 SOURCE SELECT LOGIC EXT6 EXT7 EXT8 SOURCE PRESELECTOR Signal Flow Diagram LS-6000 A-6000 / Nov 93 A-6000 / Aug 96 Page 4 - 17...
  • Page 84 (i.e., remote START/STOP functions). NOTE: the RECORD READY switch at the top of the superphone module; when activated ("Ready" LED), pressing the module's START button will automatically start the reel-to-reel recording. SPN-6000 A-6000 / Nov 93 A-6000 / Aug 96 Page 4 - 18...
  • Page 85 CALLER FEEDS TO MULTITRACK LOCK ("MIC SUM") TO TRK 1 FET SW TRIM SUM OF CALLERS TO SUPERPHONE INPUT TRKS 3 & 4 Superphone Module Signal Flow Diagram A-6000 / Nov 93 A-6000 / Aug 96 Page 4 - 19...

  • Page 86: Tape Remote (Tr-6000)

    This optional panel offers full-function control of two remote reel-to-reel tape machines. All control switches have lighted tally-back indicators. MACHINE 1 >> << PLAY STOP MACHINE 1 MACHINE 2 >> << PLAY STOP MACHINE 2 TR-6000 A-6000 / Nov 93 A-6000 / Aug 96 Page 4 - 20...
  • Page 87 Not all equipment used in stations is balanced, however, and the most cost-effective devices often don’t have +4 dBu output levels, either. Because of these realities, all Wheatstone consoles are designed to accept balanced or unbalanced sources with levels as low as -10 dBu.
  • Page 88 PPENDIX A-6000 consoles use a new type of balanced output circuit, which behaves exactly like the secondary of a high-quality transformer, with no center tap— The ability to use output HIGH or this output is both balanced and floating. Either the HIGH or LOW side of the...

  • Page 89: Notes On Level Measurement

    7 op-amp output, since the adjacent pin 8 is at 18 volts. (3) NEVER NEVER NEVER NEVER NEVER remove or insert an integrated circuit while the console is powered up. A-6000 / Nov 93 Appendix Page - 3...

  • Page 90: Integrated Circuits

    Do not defeat the protection offered by these resistors by replacing them with wires. In a pinch any low value 1/4 watt resistor can be used. A-6000 / Nov 93 Appendix Page - 4...

  • Page 91: Other Details

    PPENDIX OTHER DETAILS (1) In general, A-6000 consoles are rugged and user friendly. I/O connec- tions can be unplugged or plugged in while powered up with no damage, provided the precautions described above concerning removal and replace- ment of modules are carefully followed. Occasionally, this will cause a transient in the logic system that may be sufficient to affect a channel’s ON/...
  • Page 92 "B" START ON/OFF LOGIC CHAN "ON" SW CIRCUITS "B" STOP (OPTO-ISOLATED) "B" START/STOP COM CHAN "OFF" SW COMMON Replace standard part with WHEATSTONE Part #340020; consult factory for details A-6000 / Nov 93 A-6000 / Sept 96 Appendix Page - 6...
  • Page 93 DIPSW 11 Position 1 (Source "B") OFF (down) PCB Versions SL-6000S & SL-6000SA,SB,SC DIPSW 8 Position 1 (Source "A") OFF (down) DIPSW 8 Position 4 (Source "B") OFF (down) A-6000 / Nov 93 A-6000 / Sept 96 Appendix Page - 7...
  • Page 94 MODULE LOWER DB-25 USER-SUPPLIED CIRCUITRY SL-6000 MODULE CIRCUITRY CONNECTOR PINS (must drive 5mA) "A" OFF+ LOGIC HI A/B SOURCE SELECT SW "A" OFF– DIG COM ON/OFF LOGIC CIRCUITS (OPTO-ISOLATED) "B" OFF+ "B" OFF- A-6000 / Nov 93 Appendix Page - 8...
  • Page 95 Connection Instructions - Denon 951A CD Player ref: A-6000 Stereo Line Input Module (Use DB-25 male connector on each end of cable) Pin numbers in ( ) are for source "B" A START PLAY A COMMON COMMAND COM. A STOP...

  • Page 96: Sl-6000 "Off" Circuit Modification

    SL-6000S, "SA", "SB" and "SC" this is "SW8"; in both cases dipswitch positions 1 & 4 must be DOWN. SL-6000 "OFF" CIRCUIT MODIFICATION: Not required for module PCB versions SL-6000SC or later. For earlier printed circuit board versions, see separate instruction sheet. A-6000 / Sept 96 Appendix Page - 10...
  • Page 97 Connection Instructions - Denon 995R MD Player ref: A-6000 Stereo Line Input Module (Use DB-25 male connector on each end of cable) Pin numbers in ( ) are for source "B" A START PLAY A COMMON COMMAND COM. A STOP...
  • Page 98 When the track reaches the end, the channel is turned off and the ready light flashes. When there is no minidisc in the player, the ready light is off. When a track is cued up and ready to play, the ready light is on continuously. A-6000 / Sept 96 Appendix Page - 12...
  • Page 99 Connection Instructions Fidelipac DCR 1000 Floppy Cart Player ref: A-6000 Stereo Line Input Module (Use DB-25 male connector on each end of cable) SL- 6000 Module Lower DB-25 Fidelipac DCR-1000 Cart Machine Pin numbers in ( ) are for source "B"...
  • Page 100 On SL-6000 modules equipped and wired for sequence operation is as above, except that secondary cue detect will also cause the next DCR machine to start and the next armed input channel to turn on (that is, the next module with its ARM switch engaged). A-6000 / Sept 96 Appendix Page - 14...
  • Page 101 Connection Instructions - Sony MDS-B3 Player ref: A-6000 Stereo Line Input Module (Use DB-25 male connector on each end of cable) Pin numbers in ( ) are for source "B" A START PLAY A STOP STOP A COMMON COMMON STOP LAMP COMMON ◊...
  • Page 102 Solder a 4.7kΩ 1/4 watt resistor between PIN #6 and PIN#7 of U16. Solder the resistor be- tween the pins of the socket. Re-install the fader. NOTE: Not required for module PCB versions SL-6000SC or later. A-6000 / Nov 93 Appendix Page - 16...
  • Page 103 Wiring Procedure - Double Connection to One Pin ref: DB-25 male multi-pin connector Most audio equipment machine interfaces (as well as Wheatstone con- soles) use subminiature D-type connectors. Sometimes the interfaces require making two connections to a single DB pin. If the wiring has been set up using punchblocks, this is not a problem;...

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