velleman K4401 Sound Generator Instruction Manual

: June 16, 2024
: Velleman

Table of Contents

Features:
Specifications :
Assembly (Skipping this can lead to troubles! )
Construction
Documents / Resources

Total solder poirts: 155
Difiiculty level
beginner advanced
Sound generator
K4401

Features:

10 different Sounds : Sirens, Machine gun, Mortar, Car engine.
Adjustable sound speed
Push-bution keyboard

Specifications :

Loudspeakers output : 8 ohm/1W
Line output : 1VRms.
Power supply : 8 – 10VDC (9v battery).
Max. current consumption : 100mA
Secured against polarity reversal of the supply voltage.

Modifications reserved.

velleman K4401 Sound Generator - Modofications

VELLEMAN Components NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com

Assembly hints

Assembly (Skipping this can lead to troubles! )

Ok, 50 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 qualty sddering iron (25- 40W) with a smal tip.
Wipe if often on a wet sponge or cloh to keep it clean, then apply solder to the tip. to give wet look. Ths is calle ‘tinning’ and will protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning
Thinraisincore solder. Do not use any flux or grease.
Adiagonal cutter o trim excess wires. To avoidinjury when cutting excess leads, hold the lead so they cannot fly towards the eyes.
Needle nose piers, for bending leads, or to hold components in place.
Small blade and Phillps 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 drawings.
Values on the circuit diagram are subject to changes.
Values in this assembly guide are correct*
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 :
Mount the component against the PCB surface and carefully solder the leads Make sure the solder joints are cone-shaped and shiny

velleman K4401 Sound Generator - shaped Trim excess leads as close as possible to the solder joint AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE !
REMOVE THEM FROM THE TAPE ONE AT ATIME !

| |
---|---|---
CODE| COLOUR CODE| CODE
0| BLACK| 0
1| BROWN| 1
2| RED| 2
3| ORANGE| 3
4| YELLOW| 4
5| GREEN| 5
6| BLUE| 6
7| PURPLE| 7
8| GREY| 8
9| WHITE| 9
A| SILBER| A
B| GOLD| B

Construction

The ideal equipment for disc-jockeys, jingles for free radios or simply as an attention drawer. All sounds have been realised by means of a programmed micro-processor. The sounds generator has an output for direct connection of a loudspeaker and a line output for connecting a mixing panel or an amplifier.
The following effects can be called directly through push buttons:

Machine-gun (random number of shots with bullet impact).
European siren.
Phasor gun (STAR-WARS-like machine-gun).
Racing-car engine (increase/decrease the number of r.p.m.).
Car tire screech
Explosion.
Mortar shot followed by an explosion.
Tune: “Wild charge tune”.
Tune: “Snake charmers tune”.
U.SA siren.

Resistrors R1 :4K7 (4-7-2-B)
R2 :330 (3-3-1-B)
R3 :2M2 (2-2-5-B)
R4 :2K2 (2-2-2-B)
R5 :10M (1-0-6-B)
R6 : 27 1/2w (2-7-0-B)
R7 :470 12w (4-7-1-B)
R8 :1K (1-0-2-B)
R9 :10K (1-0-3-B)
R10:10K (1-0-3-B)
R11:10K (1-0-3-B)
R12:10K (1-0-3-B)
R13:10K (1-0-3-B)
R14:10K (1-0-3-B)
R15: 3K3 (8-3-2-B)
Diodes.Watch the Polarity ! D1 :1N4148
D2 :1N4148
D3 :1N4148
D4 :1N4148
D5 :1N4148
D6 : 1N4148
D7 :1N4148
DQ :1N4148
D10 : 1N4007
Zenerdiode Watch the polarity ! D1: 5,1V
IC socket, Watch the position of the notch! IC1:28P
Correction network
Fitthe diode D8 vertically and with one lead connected for the present. Mount one side of R6 vertically on the anode side of D8 R16 :470 12w
Then connect the free extremities of each dioderesistor pair together and cut them.
Ceramic Capacitiors $velleman K4401 Sound Generator - Ceramic\)$ C1 : 22pF (Ceramic)
C2 :100nF (104)
C3 :100nF (104)
C4 :100nF (104)
Transistors. T1 :BC557 oreq.
T2 :BC557 oreq.
T3 :BC557 oreq.
T4 :BC517 oreq.
PCB-pins OUT +
OUT-
LS+
+V
-V
Trim potentiometer RV1: 47K
Electrolytic capacitors.
Watch the polarity ! C5 : 1µF
C6 : 47µF
C7 : 47µF
C8 : 100µF
Pushbuttons. SW1
SW2
SW3
SW4
SW5
Sw6
SW7
SW8
SW9
SW10
IC Check the position of the notch IC1: VK4401
Programmed PIC16C55A
Potentiometer axe
Fit the potentiometer axe.
Hook-up diagram Loudspeaker & onloff switch are not included !
Inspect the complete assembly once more before applying power to the unit !
Test and usage
● Tum the potentiometer to its centre position.
● Connect a loudspeaker (8 ohm/ 1Watt min.) between the points LS.
● Connect a power supply (9VDC) or a 9V battery between the points +V and -V.
● Pressing the different push buttons now causes the respective effects to be produced.
ATTENTION: With some of the effects (e.g. sirens, car engine) it’s necessary to keep the push button pressed. The speed of the effects can be changed (optimized) by tuming the potentiometer.
The OUT output allows you to extra amplify the sounds or to connect them to a mixing panel. In this case you possibly can disconnect the loudspeaker.
Thanks to the position of the push buttons and of the potentiometer, this circuit can be built into a plastic housing or the pcb be mounted behind a panel very easily.
PCB layout.
Schematic diagram.

1. WILD CHARGE
2. MORTARG BPL.
3. exLoson
4. TRESCREECH
5. SNAKE CHARMERS| 6. ENGINE UPIDOWN
7. PHASOR GUN
8. EURGP. SREN
9. MACHINE GUN
10. USASREN
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VELLEMAN Components NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
Modifications and typographical errors reserved
© Velleman Components nv.
H4401IP – 2002 – ED1