RTZ STC-1200 Owner's Manual And User's Manual
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RTZ STC-1200 Owner's Manual And User's Manual

Search timer controller for ampex mm-1200
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STC-1200
SEARCH TIMER CONTROLLER
AMPEX MM-1200 UPGRADE
Owner's Manual and User Guide
RTZ Professional Audio, LLC
Alpharetta, GA USA
Web:
http://www.rtzaudio.com
Email: rtzaudio@comcast.net
COPYRIGHT © 2019, RTZ PROFESSIONAL AUDIO, LLC
DOC-REV-A02
RTZ® IS A REGISTERED TRADEMARK OF RTZ PROFESSIONAL AUDIO, LLC
02/12/2020

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Summary of Contents for RTZ STC-1200

  • Page 1 SEARCH TIMER CONTROLLER AMPEX MM-1200 UPGRADE Owner’s Manual and User Guide RTZ Professional Audio, LLC Alpharetta, GA USA Web: http://www.rtzaudio.com Email: rtzaudio@comcast.net COPYRIGHT © 2019, RTZ PROFESSIONAL AUDIO, LLC DOC-REV-A02 RTZ® IS A REGISTERED TRADEMARK OF RTZ PROFESSIONAL AUDIO, LLC 02/12/2020...

  • Page 2: Table Of Contents

    Contents INTRODUCTION ........................... 3 Description ............................ 3 Overview ............................3 Installing the STC-1200 Board ...................... 3 DIP Switch Configuration ......................5 Initial Machine Power Up ......................6 Tape Roller Quadrature Encoder Signal Waveforms ..............6 Command Line Interface ........................7 Web Server Interface ..........................

  • Page 3: Introduction

    OLED display and user interface buttons for transport control and auto-locator functions. 1.2 Overview The STC-1200 card will only work in machines that have been upgraded with the DTC-1200 transport controller board. Refer to the DTC-1200 Installation Guide for the required DTC wiring modifications necessary for DTC and STC operation.
  • Page 4 STC-1200 Search Timer Controller Figure 1 - PCB Connector and Feature Items 1. Spare accessory RS-422 serial link port. Currently this port is unused and available for future communications, control and/or linking support. 2. BOOT switch used to activate bootloader during system resets. Hold the BOOT switch while simultaneously pressing the RESET switch to activate the bootloader.

  • Page 5: Dip Switch Configuration

    STC-1200 Search Timer Controller 9. RS-232 serial port COM2. This port is reserved for future system expansion use. 10. DRC-1200 wire remote power and RS-422 communications port. This port is dedicated for use by the DRC-1200 wired remote only. 11. MIDI I/O board connector interface. A ribbon cable runs from this connector to the MIDI I/O connector board mounted in the machine somewhere.

  • Page 6: Initial Machine Power Up

    STC-1200 Search Timer Controller 1.5 Initial Machine Power Up Install the STC board in the card cage rear slot connector J4. Power up the machine and confirm the 5V power is correct at test point TP4 on the STC board. Check the tape timer 7-segment display is working correctly by rolling the tape roller by hand.

  • Page 7: Command Line Interface

    STC-1200 Search Timer Controller 2 Command Line Interface The STC provides a serial command line interface on serial port COM1 at baud rate 115,200. Connect a serial port terminal emulator (eg, TeraTerm) to this port to access the command line interface. Enter the command help to see a list of valid commands.

  • Page 8: Web Server Interface

    STC-1200 Search Timer Controller 3 Web Server Interface The web server maybe accessed from most any modern browser on smart phones, tablets and desktop computers. This simple interface allows configuration and basic remote control, but no real-time tape time display is available on the remote web page. However, basic transport and locate functions can still be used to control the machine.
  • Page 9 STC-1200 Search Timer Controller Figure 4 - Web Server Home Page This is the home page of the STC web server. Basic information about the machine and STC status is shown here during normal operation. RTZ Professional Audio, LLC...
  • Page 10 STC-1200 Search Timer Controller Figure 5 - Web Server Configuration Page This is be basic STC parameter configuration page. Settings may be stored or reset from this page to change configuration settings. RTZ Professional Audio, LLC...
  • Page 11 STC-1200 Search Timer Controller Figure 6 - Web Server Remote Page This is the basic transport remote control web page. Here you can control the transport and locator for basic machine use. The interface allows storing and locating to any of the ten cue point memory locations shared by the DRC-1200 wired remote.
  • Page 12 STC-1200 Search Timer Controller RTZ Professional Audio, LLC...

  • Page 13: Firmware Upgrade Via Bootloader

    COM1 serial port. Figure 7 - COM1 Serial Port Connection The bootloader indicates ready state by turning off the STAT LED. The STC-1200 board is now ready to accept downloading via the COM1 serial port at 19,200 BAUD.

  • Page 14: Lmflash Installation And Serial Port Configuration

    LMFLASH is a free application from Texas Instruments that allows downloading firmware updates to the STC-1200 via the COM1 RS-232 serial port on the STC-1200. You may need to create an account at ti.com to download this utility. The LMFLASH link is also on the RTZ Audio website.

  • Page 15: Select Binary Image And Program Address

    STC-1200 Search Timer Controller 4.3 Select Binary Image and Program Address Next select the new STC-1200 binary firmware image to be flashed on the board. The latest binary firmware images are available at our rtzaudio.com website. The STC-1200 binary image will generally be named STC1200_TivaTM4C1294NCPDT.bin and should be placed on your local computer with...

  • Page 16: Downloading The Binary Image

    Once the binary image and program address is set to 4000, the LMFLASH is ready to begin downloading. First, check that the STC-1200 is ready with the bootloader activated and ready to receive the new firmware image. The STC and should be waiting with the STAT1 LED off indicating the bootloader is ready to receive a new download.

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