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Table of Contents
Summary of Contents for Drawmer D62
- Page 1 OPERATORS MANUAL...
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Page 2: Table Of Contents
5 " Rear Panel Controls page 6 " 1962 Front Panel Controls RECORDING NOTES page 7 DITHER SELECTOR page 8 CONFIGURATION: page 9 " Internal jumpers IF A FAULT DEVELOPS page 10 CONTACTING DRAWMER page 10 TECHNICAL SPECIFICATION page 10... - Page 3 Canadien des Communications. COPYRIGHT This manual is copyrighted © 1997 by Drawmer Electronics, Ltd. With all rights reserved. Under copyright laws, no part of this publication may be reproduced, transmitted, stored in a retrieval system or translated into any language in any form by any means, mechanical, optical, electronic, recording, or otherwise, without the written permission of Drawmer.
- Page 4 CONDITIONS OF USE WILL NOT BE COVERED BY THIS WARRANTY. IN THE CASE OF A VALID WARRANTY CLAIM, YOUR SOLE AND EXCLUSIVE REMEDY AND DRAWMER’S ENTIRE LIABILITY UNDER ANY THEORY OF LIABILITY WILL BE TO, AT DRAWMER’S DISCRETION, REPAIR OR REPLACE THE PRODUCT WITHOUT CHARGE, OR, IF NOT POSSIBLE, TO REFUND THE PURCHASE PRICE TO YOU.
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Page 5: Safety Considerations
D62-A has an integral ADAT™ optical interface. Word sync In and Out is provided as standard and the user may select between 48kHz, 44.1kHz and externally clocked sample rates. This manual will refer to the digital module as the D62 wherever it is applicable to both T-DIF and ADAT. -
Page 6: Installation
D62 OPERATORS’ MANUAL INSTALLATION The D62 Digital modules are only designed for operation within a Drawmer 1962 analogue unit. Under no circumstances should the units be installed into any other manufacturers’ or custom device. Installation into the existing 1962 analogue unit is very simple, however if you have any doubts or problems, please refer to your local Drawmer dealer or a competent qualified electronic engineer. -
Page 7: Digital Connections
D62 OPERATORS’ MANUAL DIGITAL CONNECTIONS DIGITAL CLOCK SYNCHRONISATION When clocking the D62 from an external, master clock source, there are two possible methods of termination. When using the TEAC TDIF-1 Digital Interface protocol, which ® uses a 25 pin D-sub connector system, or ADAT optical system, the Input Select button ®... - Page 8 D62 OPERATORS’ MANUAL DIGITAL DATA Three digital data output formats are supported by the D62 digital interface. AES/EBU: via an XLR connector designed to be used with standard balanced microphone cable (20 metres maximum), wired pin 1 screen, pin 2 and 3 balanced data, and the XLR shell connected to the chassis.
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Page 9: Control Descriptions
The External WORD SYNC and TDIF (ADAT) clock inputs are filtered through a low-noise PLL (Phase Locked Loop) in the D62, the clock frequency (sample rate) should be within the range 29KHz to 51KHz. If the PLL cannot lock to the incoming clock reliably, the EXT CLK front panel LED will flash indicating that audible glitches and distortion will be introduced. -
Page 10: 1962 Front Panel Controls
This switch selects 48.0KHz, 44.1KHz and EXTernal clock for synchronising to other digital devices. Any external clock input is ‘cleaned’ by the D62 PLL and output at the rear panel BNC connector marked WORD SYNC Out. Reduce monitor volume levels before casually selecting ‘EXT CLK’,... -
Page 11: Recording Notes
RECORDING NOTES The multitrack tape must be pre-formatted at the required sample rate with Emphasis Off before recording from the D62. When recording to a multitrack machine, the SAMPLE RATE should be set to EXT CLK and the rear panel INPUT SELECT set to TDIF/ADAT as the multitrack tape machine must supply the master clock. -
Page 12: Dither Selector
D62 OPERATORS’ MANUAL DITHER SELECTOR OPTIONS Position Dither and Noise Shaping Positions the noise shaped dither to the very top of the audio spectrum at a level of +30dB above the quantise noise floor. The ears are very insensitive at this frequency, hence the noise is inaudible, resulting in subjectively clean signals with wide dynamic range. -
Page 13: Configuration
D62 OPERATORS’ MANUAL CONFIGURATION Configuration Jumpers: A simple adjustment of two internal PCB jumpers (one for each channel) enables the front panel Channel Output Level setting to be passed onto the Channel Pan control in the Stereo Mix section and therefore onwards to the Digital Section. -
Page 14: If A Fault Develops
Drawmer Electronics Ltd., will be pleased to answer all application questions to enhance your usage of this equipment. Please address all correspondence to: Drawmer (Technical Helpline) : Coleman St.: Parkgate : Rotherham : S62 6EL : UK or, Email us on : tech@drawmer.com...
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