Velleman K8077 Especificaciones

Total solder points: 383 Difficulty level: beginner 1  2  3  4  5 ⌧ advanced 100W SUBWOOFER KIT ILLUSTRATED ASSEMBLY MANUAL H8077IP

10 Fixing the knobs Slide the knobs fully onto the potentiometer axes. Turn potentiometers fully counterclockwise 24. Fixing the knobs ! Watch the pos

11 25. Fixing the PCB onto the heatsink M3 nut Spacer M3 bolt 16mm Fixing the PCB Fixing the PCB onto the heatsink : (1) Slide 2 x 5mm plastic spa

12 Tighten gently, making sure that : • the leds protrude the holes • the cinch (RCA) connectors do not touch the heatsink • the knobs do not touc

13 26. Fixing the power transistors T8 (TIP147) & T9 (TIP142) Fixing power transistors bend both transistors as indicated. • apply a drop

14 • Solder the transistor leads Repeat for the remaining transistor T9 (TIP142) Fixing Diode D15 Bend the leads as indicated.

15 Fitting transistor T7 Bend the leads as indicated. Put a large drop of heat conductive compound on the heatsink. Solder the transistor t

16 2. Mounting the power switch Click the power switch onto the heatsink. Make sure the '0'-position of the switch faces the AC connector

17 2A T 3. Mounting the fuse holder Place the fuse holder and fix with the included nut. Place a 2A T fuse. Mounting power supply section If nece

18 4. Fixing the transformer Rotate the transformer in such a way that the red/yellow/blue/grey wires point towards the PCB. Tighten the nut Moun

19 5. Wiring the ground connection Connect one end of the cable to the red ring terminal. Connect the ring terminal to the chassis by m

2 Features & specifications Features :  bass-reflex system with adjustable tube  compact size due to dual-speaker principle  adjustable level

20 6. Transformer wiring (red/yellow/blue/grey wires) Slide an insulation sleeve over each wire. Solder a connector to each wire Slide the s

21 120VAC : ORANGE235VAC : BROWN120VAC : BROWN235VAC : ORANGEBLACKBLACKBLACK • Trim the black transformer wire to a length of 14cm. Slide a piece of

22  Make sure that the IC’s are removed from their sockets. We recommend to construct a small test-jig, and connect the unit as shown belo

23 Enclosure assembly 31. Assembly of the enclosure Refer to the included mounting instructions. (A) Mark all holes according to the diagram. Use a

24 (I) - Fix the speaker wires with some glue and trim them to a length of 20cm - Slide an insulating sleeve over both wires. Solder a connector to

25 32. Placement For best results, experiment with different positions. We recommend to put the unit between the main speakers. The closer to a wal

26 ADJ. Line OUTLRLINE INSPEAKER INLR33. Connection Just below the power switch you will notice two AC voltage indications (120VAC-235VAC). Strike out

27 34. Use • Turn the volume control (OUTPUT LEVEL) fully counter clockwise before first power-on. • Turn-on the 'POWER'-switch. The &apo

28 PCB 35. PCB

29 36. Schematic diagram Schematic diagram SK8YELLOWSK10REDSK7BLUESK9GREYGNDD51N4007D61N4007C34100µF/50VGNDZD15V1GNDC2710µFGNDR33560D21N4148T1BC547GN

3 Assembly hints 1. Assembly (Skipping this can lead to troubles ! ) Ok, so we have your attention. These hints will help you to make this project s

30 SK6LS-C384700µF/50VC374700µF/50V-40VC9100nFC10100nFC1347nFC1447pC1647pC11680pC1547pC12680pC2810µFR4133KR4347KR523K3R493K3R473K3R5110LD3LED3RLT9TIP1

31 Filter section : RV1ARV2B50k logRV2A50k log(gain:=x2)S_GNDR62470SK12(*) Select operation mode:Subwoofer:R61: not mountedR23: 1KFull range:R61: 1K8R

VELLEMAN KIT NV Legen Heirweg 33 9890 Gavere Belgium Europe Info ?: http://www.velleman.be Modifications and typographical errors reserved © Velleman

4 ⇒ Use the check-boxes to mark your progress. ⇒ Please read the included information on safety and customer service * Typographical inaccuracies e

5 Construction  R1 : 22K (2 - 2 - 3 - B)  R2 : 22K (2 - 2 - 3 - B)  R7 : 47K (4 - 7 - 3 - B)  R12 : 22K (2 - 2 - 3 - B)  R13 :

6  R5 : 100 (1 - 0 - 1 - B - 9)  R6 : 470 (4 - 7 - 1 - B - 9)  R9 : 100 (1 - 0 - 1 - B - 9)  R10 : 470 (4 - 7 - 1 - B - 9)  R

7 Construction  D11 : 1N5404  D12 : 1N5404  D13 : 1N5404  D14 : 1N5404 10. Diodes (check the polarity) CATHODE  C20 : 0,047µF /

8  C25 … C28 : 10µF / 35V  C29 : 22µF / 50V  C30 … C35 : 100µF / 50V  C36 : 470µF / 16V construction  RV1 : Ster

9  RY1 : VR5V242C ( 24VDC - 5A - 2C) 20. Relais Construction  C37 : 3300µF / 50V  C38 : 3300µF / 50V 21. Electrolytic capacitors. Watch t