Velleman K4001 Assembly instructions
Total solder points: 33
Difficulty level: beginner 1 2 3 4 5 advanc ed
7W MONO AMPLIFIER
K4001
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Specifications
Music output power : 7W/4ohm
RMS output power : 3.5W/4ohm or 2W/8ohm
Power supply : 8-18VDC/0.5A
Dimensions : 55x35mm (2.2” x 1.4”)
ILLUSTRATED ASSEMBLY MANUAL H4001IP-1
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VELLEMAN NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
Features & Specifications
Features:
This small am plifier is constructed around the TDA2003 IC, capable of deli vering 4Wrms at 4ohms. The IC is completely
thermally and short-circuit protected. A conventional direct current can be connected as suppl y.
Specifications :
Music output power : 7W /4ohm
RMS output power : 3.5W /4ohm or 2W/8ohm
T otal harmonic distortion : 0.05% (1W/1KHz)
Frequency response : 20Hz-20KHz (-3dB)
Input sensitivity : 40mV/15 0Kohm
Signal/noise ratio : 86dB (A weighted)
Power supply : 8-18VDC/0.5A
Dimensions : 55x35mm (2.2” x 1.4”)
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Assembly hints
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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.
• 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 t rim exc ess wires. To avoid injury when cutting excess l eads, hold the le ad so they
cannot fly towards the 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 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
* Typograp hical inaccuracies excluded. Always look f or possible last minute manua l upda tes, indicated as ‘ NOTE’ on a s eparate l eaflet.
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