stereophonic AK-900 Скачать руководство пользователя страница 22 | Manualshive

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Here are some other exciting projects from Elenco you can build.

SOLDERLESS KITS

35mm Camera Kit

with training course

Model AK-540

Now you can learn all about photography with our new
Camera Kit. Our training manual will teach you everything
you need to know about light, film, speed, exposure,
development, and much more. And best of all, you’ll have a
working camera “you built” when you’re finished.

Talking Clock Kit

with training course

Model AK-220

This easy-to-build kit will teach you how electronic voices
are made. Model AK-220 uses analog hands to display time
and has hourly reports. Wake up to a rooster crowing in the
morning.

RADIO CONTROLLED CAR KIT

The Turbo King is our newest solderless kit. R/C cars are the hottest
thing going, and you can build your own from the ground up.
You’ll learn all about gears, motors, RF frequency and more
from our detailed assembly and training manual. Before
you know it, you’ll be ready to race!

7 Radio Functions.

Flashing Top Light.

Single Channel.

Model AK-870

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Содержание AK-900

Страница 1: ...ELECTRONIC KEYBOARD MODEL AK 900 Assembly and Instruction Manual WARNING CHOKING HAZARD Small parts not for children under 3 years of age ...

Страница 2: ...x0 1 7 5mm x 2 5mm or 6mm x 2 5mm 642104 for Bottom Case Circuit Board side and Speaker Clamps 4 3 Switches black plastic piece with metal contact 549101 4 3 Switch Covers gray plastic piece 549102 4 4 Large Pink Buttons 626063 4 4 Large Pink Button Contacts 662204 4 2 Small Pink Buttons 626065 4 8 Small Orange Buttons 626066 4 8 Small Green Buttons 626067 4 4 Medium Blue Buttons 626064 5 1 Speake...

Страница 3: ...x 0 1 10mm x 2 5mm or 6mm x 2 5mm for Bottom Case Circuit Board Side and Speaker Clamps Large Pink Button Large Pink Button Contact Switch w Metal Contact Switch Cover Small Button Pink Orange Green Medium Blue Button Battery Wires w Plug in Connector to Circuit Board Battery Cover Battery Pad Label 2 Piano Cushion w 12 Contacts Button Cushion w 12 Contacts Black Piano Key Clip Speaker w Plug in C...

Страница 4: ...d If someone is nearby then their ears will feel the pressure variations caused by your sound waves just as a small boat at the other side of the pond will feel the water waves When you say a word you create a sound wave with energy at various frequencies just as tossing a handful of various sized rocks into the pond will create a complicated water wave pattern Just as there are sound waves caused...

Страница 5: ...Take a piece of string or rope roughly 4 feet long and tie one end of it to a chair or other piece of furniture Swing the other end up and down so that you have a cyclic pattern as shown 4 Now swing it three times as fast three times the frequency to produce this pattern Now try to swing it five times as fast five times the frequency to produce this pattern Since the later patterns are frequency m...

Страница 6: ...es increase by the ratio 12 2 or 1 05946 Musical notes tones are the measure of pitch and are expressed using both the semitone and the overtone such as A3 G 4 D6 A 1 and E2 Your AK 900 Electronic Keyboard plays notes from C3 to C6 in order across the keyboard frequency in hertz and rounded off Up to now the musical measures of pitch and loudness have been discussed But many musical sounds have th...

Страница 7: ...bined wave has a regular pattern of where the two tones add together and where they cancel each other out This is the effect that produces the beat you hear in music Two tones that are close in frequency and have similar amplitude for their fundamental and for each of their overtones will beat at the rate of their frequency difference Rhythm is the pattern of regular beat that a song has ...

Страница 8: ...ions It generates a 523 252 kHz signal which is used as a master timing reference for all operations The 37 keyboard keys represent musical notes C3 to C6 in the musical scale table shown earlier These are connected directly to the IC 9037 and may be played anytime These tones are produced by dividing the 523 252 kHz reference down to the appropriate frequency and then adjusting the levels of the ...

Страница 9: ...trical waves to sound waves If you are unfamiliar with printed circuit boards PC boards then observe the advantages that the AK 900 board provides Notice all of the long thin copper traces on the board these are equivalent to having wires connecting all of those points but is much easier to manufacture much smaller more reliable easier to inspect for mistakes looks nicer and costs much less This b...

Страница 10: ...shion w 13 Contacts Green Side of the PC Board Component Side of the PC Board LEDs Pegs 3 Lay the Top Case upside down in front of you Locate the Switches Bag 4 Switch Covers Bag 4 Switch Springs Bag 3 and Switch Ball Bearings Bag 3 Make sure the metal contacts are bent up 45O otherwise they may not contact the circuit board and that they are not damaged Place a Spring into the hole in the side of...

Страница 11: ...he keyboard so that it will not be visible as shown in Figure Ea The White Clip with 8 keys the others have 7 will have to be placed so that its extra key is the most distant key from the speaker slot Next lay the Black Clips onto the White Clips from the inside using the alignment pegs again as shown in Figure Eb 10 White Piano Key Clip w 7 Keys White Piano Key Clip w 8 Keys Top Case Figure Ea Al...

Страница 12: ...ase without tipping it so that the buttons don t fall out and compare it to the picture on the box for your Electronic Keyboard It should match except for 2 small holes for the red LEDs which will be added with the Circuit Board Correct your buttons arrangement now if necessary Green Green Green Green Green Green Green Green Blue Blue Orange Orange Orange Orange Orange Orange Orange Orange Blue Bl...

Страница 13: ...ing on any of the buttons otherwise some buttons might be knocked out of position and won t work properly Secure with 3 small side Screws 0 2 x 0 1 or 0 3 x 0 1 from Bag 3 and then 9 large Screws 0 4 x 0 1 also Bag 3 as shown Note that not all of the screw holes are used Now flip the Top Case over and again compare it to the picture of it on the box It should look the same Press each of the button...

Страница 14: ...the Speaker so that the connectors lock together If the tab is on the wrong side then the Speaker will be wired incorrectly and will not work 8 Place the Speaker Clamps Bag 3 as shown in Figure I to hold the Speaker in place and secure with two Screws 0 2 x 0 1 or 0 3 x 0 1 also Bag 3 13 Figure H Speaker Connector Connector Figure I Speaker Clamps Small Screws ...

Страница 15: ...the Bottom Case using the small pegs as a guide for the long wire and press the battery contact spring and battery contact clip into position without breaking the wires as shown The clip will be a snug fit and you may need to tap it with a screwdriver to get it in all the way Hold the long wire into position using several pieces of tape 14 10 Place Bottom Case onto Top Case upside down and secure ...

Страница 16: ...ttery life take out the batteries if the unit will not be used for a long time and use alkaline batteries You may also operate this product with an AC DC Adapter that has a 9V output voltage and 400mA current rating This may be purchased through Elenco Electronics or at your local electronics store WARNING FOR USE OF AC DC ADAPTER The Adapter should be regularly examined for potential hazards of d...

Страница 17: ... are new and that they are installed with the correct polarity If using the optional AC DC Adapter then make sure it is undamaged and plugged in Make sure the ON OFF switch is ON Make sure the volume controls are not at the lowest setting If the red LED next to the ON OFF switch is off then flip the ON OFF switch several times pressing it hard Be sure that none of the wiring connections were broke...

Страница 18: ...ic Matrix Control Key Logic Timing Divider Tone1 Generator Tone2 Generator Rhythm Generator Percussion Generator Tempo Circuit Melody Control PLA D A Output Driver Envelope Circuit Envelope Circuit Driver OUT1 ENV1 ENV2 OUT2 BD SD HH CB VIBRATO VDD DEMO VSS TEMLED CO C2 C4 C1 C3 IC 9037 BLOCK DIAGRAM ...

Страница 19: ...put 48 ENV1 O CMOS Channel 1 envelope effect pin 49 OUT2 O Transmission Gate Channel 2 tone output 50 ENV2 O CMOS Channel 2 envelope effect pin 51 52 TEST1 TEST2 I O CMOS For IC test only 53 TEMLED O NMOS Open Drain Tempo indication output 54 VDD I Power supply positive 55 VIBRATO O CMOS Vibrato signal output 56 RESET I CMOS Pull High Power on reset pin 57 TEST3 I O CMOS For IC test only 58 OSC1 I...

Страница 20: ...d Integrated Circuit An electronic circuit that has been made very very small Kilohertz kHz The number of repetitions per second expressed in thousands Light Emitting Diodes LEDs A device which converts electrical energy into light Loudness A measure of the strength of sound waves also called volume Megahertz MHz The number of repetitions per second expressed in millions Metric System An internati...

Страница 21: ...overtones Tone A sound with a fundamental and overtones Treble Tones High frequency sound usually above 3000 Hz Vibrato When the frequency of a tone is slowing increasing and decreasing at a regular rate FOR FURTHER READING These are available through Elenco Electronics Inc unless stated otherwise Evans A 1992 Making Sense of Sound Sams 61026 Sundberg J 1991 The Science of Musical Sounds Academic ...

Страница 22: ...ng Clock Kit with training course Model AK 220 This easy to build kit will teach you how electronic voices are made Model AK 220 uses analog hands to display time and has hourly reports Wake up to a rooster crowing in the morning RADIO CONTROLLED CAR KIT The Turbo King is our newest solderless kit R C cars are the hottest thing going and you can build your own from the ground up You ll learn all a...

Страница 23: ...y stop is anybody s guess Its unique design includes pop out chips of different values Enjoy hours of fun with this game of chance Requires one 1 9V battery Clear Telephone Kit with training course Model AK 700 This is our most popular kit Our Telephone Kit will teach you all about communications You will actually build your own phone and be able to make and receive calls The clear plastic case le...

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