Velleman K8040 Manuale utente

Total solder points: 299

Difficulty level:

beginner 1o2o3o4o5þadvanced

K8040

HIGH-END mono mosfet power

amplifier

ILLUSTRATED ASSEMBLY MANUAL H8040IP-1

Temp. error

Clip/Auto power

8040

Mosfet Power Amplifier

VELLEMAN COMPONENTS

Legen Heirweg 33

9890 Gavere

Belgium

http://www.velleman.be

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

successful. Read them carefully.

1.1 Make sure you have the right tools:

•A good quality soldering iron (25-40W) with a

small tip.

•Wipe it often on a wet sponge or cloth, to keep it clean; then apply solder to

the tip, to give it a wet look. This is called ‘thinning’ and will protect

the tip, and enables you to make good connections. When solder

rolls off the tip, it needs cleaning.

•Thin raisin-core solder. Do not use any flux or grease.

•A diagonal cutter to trim excess wires. To avoid injury when cutting

excess leads, hold the lead so they cannot fly towards the eyes.

•Needle nose pliers, for bending leads, or to hold compo-

nents in place.

•Small blade and phillips screwdrivers. A basic range

is fine.

For some projects, a basic multi-meter is required, or might

be handy

1.2 Assembly Hints :

⇒Make sure the skill level matches your experience, to avoid disappointments.

⇒Follow the instructions carefully. Read and understand the entire step before

you perform each operation.

⇒Perform the assembly in the correct order as stated in this manual

⇒Position all parts on the PCB (Printed Circuit Board) as shown on the draw-

ings.

⇒Values on the circuit diagram are subject to changes.

⇒Values in this assembly guide are correct*

0.000

⇒Use the check-boxes to mark your progress.

⇒Please read the included information on safety and customer service

* Typographical inaccuracies excluded. Always look for possible last minute

manual updates, indicated as ‘NOTE’ on a separate leaflet.

1.3 Soldering Hints :

1-Mount the component against the PCB sur-

face and carefully solder the leads

2-Make sure the solder joints are cone-

shaped and shiny

3-Trim excess leads as close as possible to the

solder joint

REMOVE THEM FROM THE TAPE ONE AT A

TIME !

Assembly hints

AXIAL COMPONENTS ARE TAPED IN

THE CORRECT MOUNTING SEQUENCE !

Color code table

IPESF SDK NDGB FNL

CODICE

COLORE CODIGO

CORES

CODIGO

DE COL-

ORES

VÄRI

KOODI FÄRG

SCHEMA FARVE-

KODE FARGE-

KODE FARB

KODE COLOUR

CODE CODIFI-

CATION

DES

COU-

KLEUR

KODE C

0Nero Preto Negro Musta Svart Sort Sort Schwarz Black Noir Zwart 0

1Marrone Castanho Marrón Ruskea Brun Brun Brun Braun Brown Brun Bruin 1

2Rosso Encar- Rojo Punainen Röd Rød Rød Rot Red Rouge Rood 2

3Aran- Laranja Naran- Oranssi Orange Orange Orange Orange Orange Orange Oranje 3

4Giallo Amarelo Amarillo Keltainen Gul Gul Gul Gelb Yellow Jaune Geel 4

5Verde Verde Verde Vihreä Grön Grøn Grønn Grün Green Vert Groen 5

6Blu Azul Azul Sininen Blå Blå Blå Blau Blue Bleu Blauw 6

7Viola Violeta Morado Purppura Lila Violet Violet Violet Purple Violet Paars 7

8Grigio Cinzento Gris Harmaa Grå Grå Grå Grau Grey Gris Grijs 8

9Bianco Branco Blanco Valkoinen Vit Hvid Hvidt Weiss White Blanc Wit 9

AArgento Prateado Plata Hopea Silver Sølv Sølv Silber Silver Argent Zilver A

BOro Dourado Oro Kulta Guld Guld Guldl Gold Gold Or Goud B

4K7= ( 4 - 7 - 2 - B )

4K7= ( 4 - 7 - 0 - 1 - 1 )

COLOR= 2… 5

The unit consists of one main PCB with all the components including trans-

former and power supply.

FTip: The pictures on the packaging can be used as a guideline.

However, due to possible modifications they are not 100% reliable.

Mount the components in the order described:

CONSTRUCTION

qD1: 1N4148

qD2: 1N4148

qD3: 1N4148

qD4: 1N4148

qD5: 1N4148

qD6: 1N4148

qD7: 1N4148

qD8: 1N4148

2. Diodes (check the polarity)

CATHODE

D...

Construction

qJ1

qJ2

qJ3

qJ4

qJ5

qJ6

qJ7

qJ8

1. Jump wire

qR1: 1K (1-0-2)

qR2: 1K (1-0-2)

qR3: 15K (1-5-3)

qR4: 1K (1-0-2)

qR5: 470R (4-7-1)

qR6: 100R (1-0-1)

qR7: 15K (1-5-3)

qR8: 15K (1-5-3)

4. Resistors (check the color code)

R...

qZD1: 20V / 1.3W (Mount 5mm

above the PCB)

3. Zener diode (check the polarity)

CATHODE

ZD...

Construction

qR9: 15K (1-5-3)

qR10: 15K (1-5-3)

qR11: 470R (4-7-1)

qR12: 15K (1-5-3)

qR13: 15K (1-5-3)

qR14: 100R (1-0-1)

qR15: 15K (1-5-3)

qR16: 2K2 0.6W (2-2-2-9)

qR17: 100R (1-0-1)

qR18: 1K (1-0-2)

qR19: 470R (4-7-1)

qR20: 2K2 0.6W (2-2-2-9)

qR21: 1M (1-0-5)

qR22: 470R (4-7-1)

qR23: 1K (1-0-2)

qR24: 470K (4-7-4)

qR25: 470K (4-7-4)

qR26: 470K (4-7-4)

qR27: 100K (1-0-4)

qR28: 2K2 0.6W (2-2-2-9)

qR29: 2K2 0.6W (2-2-2-9)

qR30: 0R (-0-)

qR31: 15K (1-5-3)

qR32: 100K (1-0-4)

qR33: 100R (1-0-1)

qR34: 0R (-0-)

qR35: 680R (6-8-1)

qR36: 15K (1-5-3)

qR37: 100K (1-0-4)

qR38: 470R (4-7-1)

qR39: 10R / 1W (1-0-0)

qJGND: 0R (-0-)

If long input signal wires are used a

low input impedance can be useful.

In this case mount for RX a 680R (6-

8-1) resistor. Check if your pre-

amplifier can drive low impedance!

Our K8021 is OK for low impedance.

Our K8020 is not suited for low im-

pedance driving.

Rx is normally left open.

qR40: 4R7 (4.7, 4R7)

7. 10W resistor

R...

5mm

qIC1: 8P

qIC2: 8P

qIC3: 6P

6. IC sockets (check the position)

qC1: 100n (104, 0.1, u1)

qC2: 100n (104, 0.1, u1)

qC3: 100n (104, 0.1, u1)

qC4: 100n (104, 0.1, u1)

qC5: 100n (104, 0.1, u1)

qC6: 100n (104, 0.1, u1)

qC7: 100n (104, 0.1, u1)

qC8: 100n (104, 0.1, u1)

5. Multilayer capacitors

c...

qT1: BC547

qT2: BC547

9. Transistors

qSW1: TS-04PV

qSW2: KRS1243

11. Push button

Mount them straight against

the PCB surface !

qSK1: MJ-523AG/R

qSK2: MJ-523AG/B

Tip:

A red and a black type are delivered

with the kit, if you bought two amplifi-

ers for stereo then one amplifier can

be built with red connectors (right

amp.) and one with the black connec-

tors.

10. RCA connectors.

Mount them straight and

against the PCB

qC9: 2n2 (222, 2200)

qC10: 220n (.22, u22, 224)

qC11: 1uF

qC12: 1uF

qC13: 2.2uF

qC14: 2.2uF

qC15: 100n / 250V (104, 0.1, u1)

qC16: 100n / 250V (104, 0.1, u1)

8. Capacitors

Construction

qSK3: 3 pole Mains in

qSK4: 3 pole Mains transformer

qSK5+SK6: 2x 2 pole Transformer

output

FFirst slide these two connec-

tors in each other.

12. Terminal blocks

Construction

Check that the position corresponds

with the PCB silk printing.

qSK7: 2 pole Temp sensor

qSK8: 2 pole Power meter

qSK9: LS+

qSK10: LS-

13. Terminal connectors

SK...

This coil will have to be made by

yourself. Use the supplied copper

wire (1.5mm) with the kit.

Wind this wire round a 8mm drill or

other round object and make 8 turns.

You can snip off the remaining

copper.

Then remove (scratch) the isolation

from the connections using a knife.

Mount the coil and make sure to

have a perfect soldering.

qL1: 8 Turns dia 8mm

14. Coil

L...

qVR1 UA7805

16. Voltage regulator.

The back side corresponds to

the thick line.

qC17: 10µF

qC18: 10µF

qC19: 10µF

qC20: 10µF

qC21: 10µF

qC23: 1µF

qC24: 10µF

qC25: 47µF/63V

qC26: 47µF/63V

qC27: 47µF/63V

qC28: 47µF/63V

qC29: 220µF/63V

qC30: 220µF/63V

15. Electrolytic capacitors.

Check the polarity !

C...

VR...

Construction

qTR1: TIC246 or eq.

17. Triac.

The back side corresponds to

the thick line.

TR...

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