Coda 05X Operation Manual

CARE and HANDLING WARRANTY & REGISTRATION OPERATION MANUAL T E C H N O L O G I E S I N C . Stereo Preamplifier 05X VOLUME/BALANCE BALANCED O5r LINE CONTROL BUFFER COMPACT DISC TUNER VIDEO MONO MONITOR PROCESSOR CH SELECTOR MAIN RIGHT LEFT VOLUME/BALANCE dB LEVEL

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 YOU OF THE PRESENCE OF UNINSULATED DANGER- OUS VOLTAGE WITHIN THE UNIT'S ENCLOSURE THAT MAY BE OF SUFFI- CIENT MAGNITUDE TO CONSTITUTE A RISK OF ELECTRIC SHOCK. 1 SAFETY PRECAUTIONS WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS UNIT TO RAIN OR MOISTURE. TO AVOID ELECTRICAL SHOCK, DO NOT OPEN THE UNIT. REFER SERVICING TO QUALIFIED PERSONNEL. Never install or remove the power cord from the chassis unless it has been disconnected from the AC power source first. Never pull on the power cord when removing it from an AC power source. Grasp it by the plug. Do not leave the power cord connected to an AC power source unless it is connected to the unit. It is recommend that during extended periods of nonuse that the units power cord be unpluged from its AC power source. Route the AC power cord so that it will not be damaged or walked on. CAUTION - - - - -

This preamplifier is a precision device, designed in an effort to provide the listener with unmatchedsound quality, design, and construction. In order tooperate your preamplifier properly and to realize all of the capabilities of the 05X CONTROL PREAMPLIFIER , we recommend that you read this entire manual carefully, 2 INTRODUCTION VOLUME/BALANCE BALANCED O5r LINE CONTROL BUFFER COMPACT DISC TUNER VIDEO MONO MONITOR PROCESSOR CH SELECTOR MAIN RIGHT LEFT VOLUME/BALANCE dB LEVEL

The first section of the installation instructions for the 05X CONTROL PREAMPLIFIER is a diagram of the basic configuration required to bring the preamplifier into an operating mode, These brief steps will allow you to begin operating your system. Make sure during installation that the AC power connections are interrupted to the preamplifier and all other components are off. While the diagram may be self explanatory, we strongly recommend that you read the detailed instructions following this introductory section. 3 INSTALLATION CONNECTIONS

COMPACT DISC TUNER VIDEO MONO MONITOR PROCESSOR CH SELECTOR MAIN RIGHT LEFT VOLUME/BALANCE dB LEVEL 2 3 4 1 5 6 1. The CH SELECTOR set of buttons selects the input source. 2. The MONO button commons the left and right channels. 3. The MONITOR button switches in a recording device (tape deck, CD-R, etc.). 4. The PROCESSOR button switches in a audio processor (surround sound processor,equalizer, ect.). 5. Volume and balance setting is indicated by the decibel (dB) display. FOR VOLUME ADJUSTMENT: The volume display shows "relative" volume level. When the display reads "99" there is no decibel attenuation, "00" is the maximum decibel attenuation, andlevel changes occur in 1dB increments. FOR BALANCE ADJUSTMENT: In the window next to the number display are three iindicator LEDs, MAIN, LEFT, and RIGHT. In the MAIN mode (blue LED) the display readout shows volume level. In the LEFT mode (white LED) the display readout shows lleft balance level. In the RIGHT mode (red LED) the display readout shows right balance level. In addition the display will flash on and off when the volume is muted. When adjusting individual channel level for balancing purposes, the display shows "actual" decibel level. In other words, the default value of "0" on the LEFT or RIGHT channel mode, shows that the channel is not attenuated. A value of "99" shows the channel is -99 db below full volume. 6. The VOLUME/BALANCE is controlled by the optical encoder control . Clockwise rotation increases level, counter clockwise rotation decreases level. Left balance is selected by pressing the knob once, and adjusting the level. Right balance is made by pressing the knob again, and adjusting the level. Pressing the knob once again will bring it back to being a volume control. 7. To adjust the GAIN of each input ( to match the levels of all the components in the system), press and hold its selector button while you press the volume knob - then release them both. The display will switch to "00" and the selected input light will flash. Turn the volume knob clockwise to raise the input gain up to +18db or turn counter clockwise to reduce the input level up to -99 db (note that the signs "-"or "+" are not displayed). To switch back to MAIN, press any button or the knob, or wait fifteen seconds.