Table of Contents
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DA-120M Master Series Amplifier
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N E W T E C H N O L O G Y
Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com
USER'S MANUAL
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• 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219
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O L D R E L I A B I L I T Y
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090705122
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Related Manuals for J. W. Davis & Company DA-120M
Summary of Contents for J. W. Davis & Company DA-120M
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Page 1: Table Of Contents
O L D R E L I A B I L I T Y J.W. Davis & Company • 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... -
Page 2: I - Unpacking/Inspection Procedures
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... -
Page 3: Product Description
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... - Page 4 Installation expansion requiring greater power is accomplished through a booster output jack which allows the signal from the DA-120M to be connected to the input of an additional amplifier. A master volume control is provided for overall control of the microphone and auxiliary outputs. Bass and treble controls permit adjustment of voice and music output.
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Page 5: Back Panel Detail
O L D R E L I A B I L I T Y J.W. Davis & Company • 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... - Page 6 O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com...
- Page 7 O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com...
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Page 8: Circuit Board Level Settings
ACTIVATION OF TELEPHONE VOX MUTING The default setting of the DA-120M is shipped from the factory with the telephone VOX mute activated and will mute the six MIC/AUX inputs. ACTIVATION OF MICROPHONE 1 VOX MUTING To give microphone 1 precedence over microphones 2 - 6, change the jumper #JP-205 to the ON posi- tion and jumper #JP-203 to the OFF (Mute MIC One) position. -
Page 9: Technical Specifications
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... -
Page 10: Pa Speaker Layout
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... - Page 11 O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com...
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Page 12: Polarity
All JWD speakers have the “hot” terminal marked with a “+” or a red dot. The “common” terminal is either unmarked or marked with a “-”. -
Page 13: Schematic For Input Modules
O L D R E L I A B I L I T Y J.W. Davis & Company • 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... -
Page 14: Schematic For Input Modules
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... -
Page 15: Schematic For Chassis Board
O L D R E L I A B I L I T Y J.W. Davis & Company 3030 Canton Street • P.O. Box 710219 • Dallas, Texas 75371-0219 • Sales 800-527-5705 • Fax 800-388-9106 • Corp 214-651-7341 • Fax 214-939-0328 • sales@jwd.com • www.jwd.com... - Page 16 DA-120M Master Series Amplifier Please Note: Thank you for selecting a J. W. Davis DA-120M Amplifier. Since 1933 it has been our goal to produce a complete line of quality products and to offer a FIVE YEAR WARRANTY on most J.
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