1. Manuals
  2. Brands
  3. Kramer Manuals
  4. Switch
  5. VP-727A-BA
  6. User manual

Kramer VP-727A-BA User Manual

Balanced audio switcher
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
Kramer Electronics, Ltd.

USER MANUAL

Model:
VP-727A-BA
Balanced Audio Switcher

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the VP-727A-BA and is the answer not in the manual?

Questions and answers

Related Manuals for Kramer VP-727A-BA

Summary of Contents for Kramer VP-727A-BA

  • Page 1: User Manual

    Kramer Electronics, Ltd. USER MANUAL Model: VP-727A-BA Balanced Audio Switcher...

  • Page 2: Table Of Contents

    Figure 2: Connecting the VP-727A-BA with a VP-727xl Machine Figure 3: Connecting the PC Figure 4: Connecting 2 VP-727A-BA machines to the VP-727T via 2 VP-727xl Machines 11 Figure 5: Connecting the VP-727A-BA to the VP-727T via the VP-727 Figure 6: RS-485 Configuration between the VP-727A-BA and the VP-727xl...

  • Page 3: Introduction

    2 We recommend that you use only the power cord that is supplied with the machine 3 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com 4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com...
  • Page 4 Getting Started KRAMER: SIMPLE CREATIVE TECHNOLOGY...

  • Page 5: Overview

    Overview Overview The Kramer VP-727A-BA is a high performance 8x2 switcher for balanced stereo audio signals. It switches any input to either the preview or program output. The VP-727A-BA is an audio companion switcher for the VP-727xl Universal Presentation Matrix Switcher / Scaler and the VP-727 Universal Presentation Matrix Switcher / Scaler, and operates in conjunction with them and the VP-727T Presentation Switcher Control Panel.

  • Page 6: Figure 1: Vp-727A-Ba Balanced Audio Switcher

    Your VP-727A-BA Balanced Audio Switcher Figure 1: VP-727A-BA Balanced Audio Switcher KRAMER: SIMPLE CREATIVE TECHNOLOGY...

  • Page 7: Table 1: Vp-727A-Ba Balanced Audio Switcher Front Panel Features

    (PREVIEW AND PROGRAM) 5 To reset the VP-727A-BA to its factory default settings, turn the unit OFF, then turn it ON while pressing the TAKE button for about 2 seconds: The preview and program input is set to input 1, the input volume resets to 0dB, and the bass and treble levels reset to 0...

  • Page 8: Table 2: Vp-727A-Ba Balanced Audio Switcher Rear Panel Features

    RIGHT Connect to a balanced stereo audio program acceptor M Connectors LEFT Set to ON to operate the VP-727A-BA with the VP-727xl (as slave baud DIP 8 rate 38,400); else set to OFF DIP 7 Set to ON to operate the VP-727A-BA with the VP-727 or the VP-727T (as chain baud rate 115,200);...

  • Page 9: Installing The Vp-727A-Ba In A Rack

    Pay particular attention to situations where • If you are using a Kramer rack electricity is supplied indirectly (when the power cord adapter kit (for a machine that is not is not plugged directly into the socket in the wall), for 19"), see the Rack Adapters user...

  • Page 10: Configuring The Vp-727A-Ba Balanced Audio Switcher

    (not illustrated in Figure 2) 5 When connecting the VP-727A-BA to the VP-727, set DIP 7 to ON and make sure that all the other dipswitches are set to 6 We recommend that you use only the power cord that is supplied with this machine...

  • Page 11: Figure 2: Connecting The Vp-727A-Ba With A Vp-727Xl Machine

    Configuring the VP-727A-BA Balanced Audio Switcher Figure 2: Connecting the VP-727A-BA with a VP-727xl Machine...

  • Page 12: Connecting A Pc (Via Rs-232) To A Standalone Vp-727A-Ba

    DB9 (From PC) Switcher / Scaler) Figure 3: Connecting the PC 1 When the VP-727A-BA is configured with the VP-727xl, the audio follows the video and the VP-727A-BA cannot be controlled via a PC 2 Also known as a Null-modem connection...

  • Page 13: Configuring The Vp-727A-Ba With The Vp-727Xl And The Vp-727T

    The example in Figure 4 illustrates how to connect two VP-727A-BA machines and two VP-727xl machines to a VP-727T controller. On each VP-727A-BA machine, set DIP 8 to ON. The other dipswitches are set to Figure 4: Connecting 2 VP-727A-BA machines to the VP-727T via 2 VP-727xl Machines...

  • Page 14: Figure 5: Connecting The Vp-727A-Ba To The Vp-727T Via The Vp-727

    The example in Figure 5 illustrates how to connect a VP-727A-BA and a VP-727 machine to a VP-727T controller. On the VP-727A-BA, set DIP 7 to ON. The other dipswitches are set to OFF Figure 5: Connecting the VP-727A-BA to the VP-727T via the VP-727...

  • Page 15: Connecting Via Rs-485

    Connect the “A” (+) PIN on the RS-485 rear panel port of the  VP-727A-BA to the A (+) PIN on the AUDIO CONTROL rear panel port of the VP-727xl unit Connect the “B” (-) PIN on the RS-485 rear panel port of the ...

  • Page 16: Figure 6: Rs-485 Configuration Between The Vp-727A-Ba And The Vp-727Xl

    Configuring the VP-727A-BA Balanced Audio Switcher VP-727A-BA VP-727xl VP-727T Side Panel RS-485 PINOUT Figure 6: RS-485 Configuration between the VP-727A-BA and the VP-727xl KRAMER: SIMPLE CREATIVE TECHNOLOGY...

  • Page 17: Connecting The Vp-727A-Ba To The Vp-727T Via The Vp-727

    Connect the “A” (+) PIN on the RS-485 rear panel port of the  VP-727A-BA to the A (+) PIN on the RS-485 rear panel port of the VP-727 unit Connect the “B” (-) PIN on the RS-485 rear panel port of the ...

  • Page 18: Figure 7: Rs-485 Configuration Between The Vp-727A-Ba And The Vp-727

    Configuring the VP-727A-BA Balanced Audio Switcher VP-727A-BA VP-727 VP-727T Side Panel RS-485 PINOUT Figure 7: RS-485 Configuration between the VP-727A-BA and the VP-727 KRAMER: SIMPLE CREATIVE TECHNOLOGY...

  • Page 19: Flash Memory Upgrade

    Flash Memory Upgrade Flash Memory Upgrade The VP-727A-BA firmware is located in FLASH memory, which lets you upgrade to the latest Kramer firmware version in minutes! The process involves: • Downloading from the Internet (see section 7.1) • Connecting the PC to the RS-232 port (see section 7.2) •...

  • Page 20: Upgrading Firmware

    Figure 9: Atmel – Flip Window 3. Press the keyboard shortcut key F2 (or select the “Select” command from the Device menu, or press the integrated circuit icon in the upper right corner of the window). The “Device Selection” window appears: KRAMER: SIMPLE CREATIVE TECHNOLOGY...

  • Page 21: Figure 10: Device Selection Window

    Flash Memory Upgrade Figure 10: Device Selection Window 4. Click the button next to the name of the device and select from the list: AT89C51RD2: AT89C51RD2 T89C51RD2 Figure 11: Selecting the Device Window 5. Click OK and select “Load Hex” from the File menu.

  • Page 22: Figure 12: Loading The Hex

    Figure 12: Loading the Hex 6. The Open File window opens. Select the correct HEX file that contains the updated version of the firmware for VP-727A-BA (for example 44M_V1p2.hex) and click Open. 7. Press the keyboard shortcut key F3 (or select the “Communication / RS232”...

  • Page 23: Figure 14: Atmel - Flip Window (Connected)

    Figure 15: Atmel – Flip Window (Operation Completed) 10. Close the “Atmel – Flip” window. 11. Disconnect the power on the VP-727A-BA. 1 See also the blue progress indicator on the status bar 2 If an error message: “Not Finished” shows, click Run again...

  • Page 24: Technical Specifications

    Technical Specifications 12. If required, disconnect the RS-232 rear panel port on the VP-727A-BA unit from the Null-modem adapter. 13. On the rear side, slide the SETUP DIP 1 to OFF. 14. Connect the power to the VP-727A-BA. Upon initialization, the new VP-727A-BA software version shows in the STATUS 7-segment Display.

  • Page 25: Kramer Vp-727A-Ba Protocol (Ver. 3.21)

    ), no parity, 8 data bits, and 1 stop bit. For RS-485: A differential (2 wire) connection between the VP-727(xl) and the VP-727A-BA is required (A, B); GND may be connected to the shield if required. All values shown are hexadecimal.
  • Page 26 Kramer VP-727A-BA Protocol (Ver. 3.21) INSTRUCTION Byte Byte Byte Byte COMMENT SET TAKE TRANSITION SPEED PROGRAM INPUT 1 LEVEL 80 + Value See NOTE 1 PROGRAM INPUT 2 LEVEL 80 + Value PROGRAM INPUT 3 LEVEL 80 + Value PROGRAM INPUT 4 LEVEL...
  • Page 27 Kramer VP-727A-BA Protocol (Ver. 3.21) INSTRUCTION Byte Byte Byte Byte COMMENT READ PREVIEW INPUT 1 See NOTE 3 LEVEL READ PREVIEW INPUT 2 LEVEL READ PREVIEW INPUT 3 LEVEL READ PREVIEW INPUT 4 LEVEL READ PREVIEW INPUT 5 LEVEL READ PREVIEW INPUT 6...
  • Page 28 Kramer VP-727A-BA Protocol (Ver. 3.21) INSTRUCTION Byte Byte Byte Byte COMMENT READ BASS See NOTE 3 READ TREBLE READ BALANCE READ PROGRAM INPUT 1 DELAY READ PROGRAM INPUT 2 DELAY READ PROGRAM INPUT 3 DELAY READ PROGRAM INPUT 4 DELAY...
  • Page 29 4th byte Send 0x06 0x81 0x80 0x81 Reply 0x46 0x81 0x84 0x81 NOTE 4: In the case where the VP-727A-BA is in “FADE” mode (ie, not “CUT” mode), it will send this command via RS-232 after it has completed the transition.
  • Page 30 For example, for version 3.5, the reply would be 0x7d, 0x83, 0x85, 0x81. NOTE 7: If any parameter was changed the VP-727A-BA replies with the changed parameter instruction. For example if the Program Source was changed to 3, the machine replies 0x42 0x83 0x81 0x81.
  • Page 31 EXCLUSION OF DAMAGES The liability of Kramer for any effective products is limited to the repair or replacement of the product at our option. Kramer shall not be liable for: 1. Damage to other property caused by defects in this product, damages based upon inconvenience, loss of use of the product, loss of time, commercial loss;...
  • Page 32 For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com, where updates to this user manual may be found. We welcome your questions, comments and feedback. Safety Warning: Disconnect the unit from the power supply before opening/servicing.

Table of Contents