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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: 

 

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A good quality soldering iron (25-40W) with a small tip. 

 

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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. 

 

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A diagonal cutter to trim excess wires.  To avoid injury when cutting excess  leads, hold the lead so they  

cannot fly towards the eyes. 

 

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Needle nose pliers, for bending leads, or to hold components in place. 

 

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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 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.  

 

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Summary of Contents for WSI8004

Page 1: ...Dc to Pulse Width Modulator K8004 ILLUSTRATED ASSEMBLY MANUAL H8004IP 2 Total solder points 82 Difficulty level beginner 1 2 3 4 5 advanced Allows very efficient control of DC motors heaters or lights...

Page 2: ...et 0 to 20 adjustable Adjustable sensitivity 2 5 to 35VDC Short circuit protection Overload protection 6 5A Specifications Power Supply 8 to 35VDC unregulated Supply current No load 35mA typ Efficienc...

Page 3: ...he eyes Needle nose pliers for bending leads or to hold components in place Small blade and Phillips screwdrivers A basic range is fine For some projects a basic multi meter is required or might be ha...

Page 4: ...refully 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 DO NOT BLINDLY FOL...

Page 5: ...0K 2 2 4 B 2 Resistors R Construction D1 1N4148 D2 1N4148 D3 1N4007 1 Diodes Watch the polarity D CATHODE IC1 16P 3 IC socket Watch the posi tion of the notch RV1 10K RV2 10K RV3 250K RV 4 Trim potent...

Page 6: ...citor Watch the polarity C D4 6A2 6A6 9 Diode check the polarity D CATHODE J1 2p J2 2p J3 2p 10 Screw connectors R8 0 22 R22 R9 0 22 R22 R10 0 22 R22 11 5W Resistors R 2mm R T2 BUK9535 55 or eq 12 Tra...

Page 7: ...nt to the DC input Set preset RV3 to the middle of its adjustment range Connect a DC voltage between 8 and 35V with the points V and GND Measure between the and points of LOAD with a voltmeter set to...

Page 8: ...ntrolled with the demo program dimmer The circuit can also be tested with the test program of the K8000 Figure C Internal reference voltage used as control voltage 15 Different configurations SUPPLY P...

Page 9: ...halogen lamps in order to pre heat the filament RV2 setting the maximum output voltage Set the control voltage to the maximum voltage that you are going to use The maximum output voltage can be adjus...

Page 10: ...10 PCB 17 PCB P8004 2...

Page 11: ...11 18 Schematic diagram Schematic diagram T1 D2 D1...

Page 12: ...5 4 1 0 3 2 9 2 9 2 0 9 6 Modifications and typographical errors reserved Velleman nv H8004IP 2 rev 4 0 VELLEMAN NV Legen Heirweg 33 B 9890 GAVERE Belgium Europe...

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