User Manual

ManualsBrandsVelleman Manualspower amplifiervelleman K2637 Super Mini 2.5W Audio Power Amplifier

Total solder points: 44

Skill level :

Beginner 1o 2þ 3o 4o 5o Advanced

MANUAL H2637-ED1

K2637

SUPER MINI 2.5W AUDIO POWER AMPLIFIER

Manual

Specifications :

þ Max. output power : 2.5W (4Ω /12V)

þ Frequency response : 60Hz - 15KHz

þ Input sensitivity : 20-150mV selectable

þ Thermal and short circuit protection

þ Power supply : 4.5 - 15VDC /400mA

þ Quiescent current : 12mA

þ Dimensions : 42x32mm (1.65”x1.25”)

modifications reserved

Applications :

þ Small but powerful multi-purpose amplifier

þ For use with portable audio equipment

þ Power amplifier for audio projects

þ In-car use

þ Your own unique application

Summary of content (6 pages)

PAGE 1
Total solder points: 44 Skill level : Beginner 1o 2þ 3o 4o 5o Advanced K2637 SUPER MINI 2.5W AUDIO POWER AMPLIFIER Manual Specifications : þ Max. output power : 2.5W (4Ω /12V) þ Frequency response : 60Hz - 15KHz þ Input sensitivity : 20-150mV selectable þ Thermal and short circuit protection þ Power supply : 4.5 - 15VDC /400mA þ Quiescent current : 12mA þ Dimensions : 42x32mm (1.65”x1.
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5% 1% 4K7= ( 4 - 7 - 2 - B ) I P C CODICE CODIGO DE O COLORE D CORES E 0 1 2 3 4 5 6 7 8 9 A B Nero Marrone Rosso Aranciato Giallo Verde Blu Viola Grigio Bianco Argento Oro Preto Castanho Encarnado Laranja Amarelo Verde Azul Violeta Cinzento Branco Prateado Dourado COLOR= 2… 5 4K7= ( 4 - 7 - 0 - 1 - 1 ) E CODIGO DE COLORES Negro Marrón Rojo Naranjado Amarillo Verde Azul Morado Gris Blanco Plata Oro SF VÄRI KOODI Musta Ruskea Punainen Oranssi Keltainen Vihreä Sininen Purppura Harmaa Valkoinen Hopea
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__________________________________________________________________________________________________________________________________________________________ 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project successful. Read them carefully. 1.1 Make sure you have the right tools: • A good quality soldering iron (25-40W) with a small tip.
PAGE 4
_______________________________________________________________________________________________________________________________________________________ 1. RESISTORS 3. CAPACITORS R... q R1 : 330K (3 - 3 - 4 - B) q R2 : 5K6 (5 - 6 - 2 - B) q R3 : 4E7 (4 - 7 - B - B) 2. ELECTROLYTIC CAPACITORS (Check the polarity) C... q q q q q C... q q q q q C3 : 100pF (101) C4 : 100nF (0.1µF; µ1; 104) C5 : 1.8nF (182; 1800) C6 : 220nF (224; 0.22µ; µ22) C8 : 100nF (0.1µF; µ1; 104) 4.
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__________________________________________________________________________________________________________________________________________________________ 7. CONNECTION EXAMPLE LOW LEVEL INPUT 4/8 OHM SPEAKER + - - + 4.5 .. 15VDC + JUMPER Dynamic microphone 8. CONNECTION EXAMPLE HIGH LEVEL INPUT 4/8 OHM SPEAKER CD PLAYER TAPE RECORDER VIDEO RECORDER COMPUTER … + - - 4.5 ..
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_______________________________________________________________________________________________________________________________________________________ 9. PCB LAYOUT 10.