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Coda 02b - page 1
OPERA TION MANUAL TECHNOLOGIES INC. ADDRESS 7 4 1 2 3 11 14 13 12 10 SAFETY PRECAUTIONS INST ALLA TION CONNECTIONS INTRODUCTION DET AILED INST ALLA TION DESIGN PHILOSOPHY TECHNICAL DA T A CARE and HANDLING W ARRANTY W ARRANTY REGISTRA TION FET PREAMPLIFIER 02b ...
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Coda 02b - page 2
! CAUTION CAUTION W ARNING W ARNING ! SERVICING TO QUALIFIED SERVICE CAUTION : TO PREVENT ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER SERVICEABLE PARTS INSIDE, REFER PERSONNEL. THIS SYMBOL IS INTENDED TO ALERT YOU OF THE PRESENCE OF IMPORTANT OPERATING AND MAINTENANCE INSTRUCTIONS IN THE LITERATURE ACCOMPANYING THE UNIT. THIS SYMBOL IS TO ALERT YO ...
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Coda 02b - page 3
2 INTRODUCTION This preamplifier is a precision device, designed in an effort to provide the listener with unmatched sound quality, design, and construction. In order to operate your preamplifier properly and to realize all of the capabilities of the FET PREAMPLIFIER 02b, we recommend that you read this entire manual carefully. ...
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Coda 02b - page 4
RIGHT RIGHT RIGHT RIGHT RIGHT LEFT LEFT LEFT LEFT LEFT LEFT RIGHT UNBALANCED DISC TUNER VIDEO IN RECORDER OUT LEFT RIGHT BALANCED OUTPUT ! FOR CONTIMUED PROTECTION AGAINST SHOCK OR FIRE HAZARD,DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. AC LINE INPUT SEE SERIAL TAG FOR POWER REQUIREMENTS ~ LEFT RIGHT BALANCED DISC UNBALANCED OUTPUT UNBALANCED DISC ...
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Coda 02b - page 5
4 DET AILED INST ALLA TION I. Set up and Installation 1. Position the FET PREAMPLIFIER 02b in the space which you have chosen, leaving enough space to connect the ancillary components of your audio system, and the AC power cord for the preamplifier. Although the FET PREAMPLIFIER 02b has the ability to reject external fields that produce system nois ...
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Coda 02b - page 6
II. Source-Output, and Power Connections The input and output connectors are clearly marked on the rear lip of the top cover. It is important to remember the correct left or right channel orientation. The function and channel markings on the rear panel correspond to the front panel controls and their signal paths. They are: 1. The BALANCED DISC inp ...
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Coda 02b - page 7
1 2 3 4 BALANCE OUTPUT LEVEL INPUT SELECTOR RECORD SELECTOR FET PREAMPLIFIER 02b UNBALANCED DISC RECORDER OFF VIDEO TUNER BALANCED DISC UNBALANCED DISC RECORDER VIDEO TUNER BALANCED DISC III. Front Panel Control Functions 1. The INPUT SELECTOR control selects the source which will be presented to the outputs and balanced outputs. 2. The RECORD SELE ...
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Coda 02b - page 8
DESIGN PHILOSOPHY 7 I. Design Philosophy and Approach The circuitry utilized in the FET PREAMPLIFIER 02b is the result of an advanced and complete design process combining innovation and proven fundamentals. This process avoids both the limitations of total adherence to convention and the flaws resulting from inappropriate application of clever cir ...
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Coda 02b - page 9
The requirements of a power supply for flawless audio reproduction are straightforward but important. The supplies in the FET PREAMPLIFIER 02b take a very direct approach to high performance. First, a top quality shielded toroid transformer with plenty of reserve current capability is used. About 28,000 uF of capacitance with very low ESR and induc ...
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Coda 02b - page 10
DESIGN PHILOSOPHY II. Parts' Quality 1. Finishes - All exterior and interior metal parts are anodized. While paint may be more impact resistant, the anodized surface is more resistant to solvents and prevents corrosion. Moreover, the anodized parts' appearance can be enhanced by either graining or bead-blasting the surface. 2. Circuit Boa ...
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Coda 02b - page 11
TECHNICAL DA T A CIRCUIT SPECIFICATIONS Frequency Response: DC to -3 dB @ 200 kHz Distortion: < .01 % from 10 Hz to 40 kHz @ 6V peak into 600 Ohms or higher, shunted by 1000 pF or less . Gain: with unbalanced in and unbalanced out 14 dB with balanced in and unbalanced out 14 dB with unbalanced in and balanced out 20 dB with balanced in and balan ...
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Coda 02b - page 12
CARE and HANDLING 11 The interior of the unit requires no special care, due to the use of sealed controls and gold plating on contacts. If it becomes necessary to clean the exterior, a simple dusting may be all that is required. If a cleaner is necessary, any dilute commercial ammonia based product will be appropriate. NEVER use any abrasive rags, ...
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Coda 02b - page 13
W ARRANTY 12 I. Warranty- Any failure of the FET Preamplifier 02b to operate or to meet specifications, applicable at time of manufacture, due to a manufacturing defect or component failure, will be corrected by Coda Technologies, Inc. without charge for parts, or labor for a period of ten years from date of original purchase. Coda Technologies, In ...
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Coda 02b - page 14
W ARRANTY REGISTRA TION MODEL DESIGNATION: __________________________________ SERIAL NUMBER: ______________________________________ DATE OF PURCHASE: PLACE OF PURCHASE Dealer:___________________________________________ Address:__________________________________________ City:_____________________ State:____ Zip:__________ Phone:_____________________ ...
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Coda 02b - page 15
MODEL DESIGNATION: __________________________________ SERIAL NUMBER: ______________________________________ DATE OF PURCHASE: PLACE OF PURCHASE Dealer:___________________________________________ Address:__________________________________________ City:_____________________ State:____ Zip:__________ Phone:____________________________________________ ...
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Coda 02b - page 16
ADDRESS Coda Technologies, Inc. 9941 Horn Road Suite A Sacramento, CA 95827 Phone: (916) 363-4653 Fax: (916) 363-4627 14 ...
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