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Details Title: Audiotronics Description: Exam 2 Total Flash Cards: 64 Created: 04/10/2006 20:14:26	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term Do we use magnetized screwdrivers inside computers? Definition No Term What do we use to clean the connectors on PCI and AGP expansion cards? Definition Isopropyl Alchohol Term What must be done prior to making any connections in the studio? Definition Turning the volume knobs all the way down Term Define Open. Definition No current flow, infinite Ohms Term Define Closed. Definition Has current flow by design Term Define Short. Definition 0 Ohms, current takes the path of least resistance Term Define Series. Definition Circuit path does not split Term Define Parallel. Definition Circuit path splits Term Parrallel voltage is _________. Definition Constant Term What is the voltage accross a short? Why Definition 0 Volts. There is no difference in electrical potential since there is no 0V reference Term Define P. Definition Power measured in Watts. It is the Work being done Term Define I. Definition Current in Amps, It is the flow of electrons Term Define E. Definition Electromotive Force in Volts. It is the Electrical Pressure Term Define R. Definition Resistance in Ohms. It is the blockage that inhibits electron flow Term Define Z. Definition Impedence in Ohms. It is a Resistance at certain frequencies Term What is the formula to find Current. Definition I=P/E Term How many Volts is an American Wall Outlet? Definition 115 Term What does an active component require to turn on? Definition DC Power Term What do Bridge Rectifiers do? Definition They change AC into DC by directing all AC half cycles to travel in the same direction Term What do we call the leads on a Bipolar Transistor? Definition Collector, Emitter, and Base. Term What do we call the leads on a FET Transistor? Definition Source, Gate and Drain Term What type of charge is found in an inverting op amp Input/Output? Definition Negative Term What type of charge is found in a non inverting op amp Input/Output? Definition Positive Term What are Op amps used for in audio? Definition Amplifying, Inverting, Summing Amps, Active EQ's, Oscillators, Changing Impedence, Balancing, Comparitors, VCA's, Compressors. Term What is Gain? Definition A unitless number that acts as a multiplier Term What is a truth table? Definition Table used to show how a logic circuit's output responds to various combinations of the inputs Term What are the two main digital transistor families? Definition Bipolar and MOSFET Term What is TTL Definition Transistor to Transistor logic. It refers to the Bipolar family Term What is the operating level for CMOS? Definition 3Vdc to 18Vdc Term CMOS chips are ______ sensitive. Definition Static Term What are the two main purposes of a Chip Socket? Definition Quick and easy chip replacement, protection from overheating Term What is a single sided circuit board? Definition Metal runs on only one side Term What is a double-sided circuit board? Definition Metal runs on both sides of the board Term What is a stuffed circuit board? Definition Parts pre-soldered to the board Term What is an unstuffed circuit board? Definition Parts are not pre-soldered to the board Term Flux residue can be removed with flux solvent or __________. Definition Isopropyl Alchohol Term What are the three most important features of a service manual?> Definition Assembly Drawing, Schematic Drawing, and Parts List Term What do we generally use reference manuals for? Definition To order replacement parts Term What are the 5 Mechanical Cal Head Adjustments? Definition Zenith, Azimuth, Wrap, Rack, and Height Term What is a Zenith Adjustment? Definition Using a Dry Erase marker on the head play the tape and check the wear pattern Term What is a Wrap adjustment? Definition Using a Dry Erase marker on the head play the tape and check the wear pattern Term What is a height adjustment? Definition Record a 1K tone at 0 VU, flip the tape over and play it back to ensure it is still 1K and 0 VU Term Who determines the Rack adjustment? Definition The manufacturer. Term When do we adjust the azimuth? Definition In Electrical Cal Term How do we test Brake Tension? Definition With a Spring Scale ans string and the machine stopped Term How do we measure pinch roller pressure? Definition With a Spring scale. Play a 1K tone, and pull on the pinch roller with the spring scale. Record the tension at the point where the pitch begins to drop Term How do we measure tape tension? Definition While tape is playing, measure tension with a tentolometer Term How do we test tape speed? Definition With an MRL and Frequency meter in play mode Term How many dB is 200 nWb/m? Definition +1 Term How many dB is 250 nWb/m? Definition +3 Term How many dB is 320 nWb/m? Definition +5 Term How many dB is 355 nWb/m? Definition +6 Term How many dB is 370 nWb/m? Definition +6 Term How many dB is 500 nWb/m? Definition +9 Term How many dB is 520 nWb/m? Definition +9 Term What is the Play Cal formula? Definition VU=MRL-Op Level Term What are the two main methods for biasing? Definition 10k Overbias, and 1K peak method Term Which biasing method yeilds the best results? Definition 10k Overbias Term Which biasing method is universal? Definition 1k peak method Term In Europe, 0dB is ________ nWb/m. Definition 200 Term What is the difference between a standard diode and a zener diode? Definition Zener Diodes have a higher turn on voltage Term What do the letters TP on a schematic drawing generally mean? Definition Test Point Term What do dotted lines on a schematic represent? Definition A Connection being made. Term What are capacitors measured in? Definition MicroFarads unless otherwise marked