Velleman K4003 Bedienungsanleitung
K4003
ILLUSTRATED ASSEMBLY MANUAL H4003IP-1
Total solder points: 46
Difficulty level: beginner 1 2 3 4 5 advanced
Theeasywaytoaddqualitystereo
amplificationtoyourproject.
2 X 30W STEREO AMPLIFIER
VELLEMAN NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com
3
Features:
This small amplifier is constructed with the TDA2616 IC, with a maximum supply capability of 2 x 15Wrms (4ohm) of 2 x
10Wrms (8ohm). The IC is thermally and short-circuit protected.
Additional rectifier and smoothing filter are unnecessary, as alternating current can be directly connected to the unit.
Specifications :
Music power output: 2 x 30W / 4ohm
RMS output: 2 x 15Wrms / 4ohm or 2 x 10Wrms / 8ohm
Total harmonic distortion: 0.07% (1W / 1kHz)
Channel separation: 70dB
Frequency response: 7Hz to 60kHz (-3dB)
Signal-to-noise ratio: 98dB (A weighted)
Input sensitivity: 300mV / 150Kohm
Transient suppression on/off switch
Overload and short-circuit protection: max. 1h
Supply voltage: 2 x 12Vac / 2A (50W transfo recommended)
Dimensions: 70 x 50mm
Recommended transformer: 212048 or 8012
Features & Specifications
4
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 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
* Typographical inaccuracies excluded. Always look for possible last minute manual updates, indicated as ‘NOTE’ on a separate leaflet.
0
.0
0
0
5
Assembly hints
1.3 Soldering Hints :
1- Mount the component against the PCB surface 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 !
DO NOT BLINDLY FOLLOW THE ORDER OF THE
COMPONENTS ONTO THE TAPE. ALWAYS CHECK
THEIR VALUE ON THE PARTS LIST!
6
R1 : 8,2 (8 - 2 - B - B)
R2 : 8,2 (8 - 2 - B - B)
1. Resistors
R...
Construction
D1 : 1N5404
D2 : 1N5404
D3 : 1N5404
D4 : 1N5404
2. Diodes. Watch the polarity !
D. . .
CATHODE
C1 : 22nF (223)
C2 : 22nF (223)
C3 : 100nF (104)
3. Capacitors.
C6 : 2200µF
C7 : 2200µF
6. Electrolytic Capacitors.
Watch the polarity !
C...
IN
GND
IN
GND
LS (2x)
GND (2x)
VA
GND
VB
4. PCB tabs
Left
Right
LS
Mains
C4 : 1µF
C5 : 1µF
5. Capacitors.
7
Construction
IC1 : TDA2616
Mount the IC with the metal back pointing at the edge of the circuit
board. Mount it sufficiently high, so that the pins do NOT need to be
pruned. Then mount the IC against the heatsink, as indicated in the
diagram 1.0. The insulation (covered on both sides with some op-
tional heat-conductive paste, ordernr.: therm20) mica must be in-
serted between the IC and the heatsink.
7. IC
PCB
IC
INSULATOR
P4003
WASHER
LOCK WASHER
M3 NUT
15mm M3 BOLT
WASHER
LOCK WASHER
M3 NUT
15mm M3 Bolt
Washer
Lock washer
M3 nut
Washer
Lock washer
M3 nut
Fig. 1.0
Insulator
8
Connection
8. Connection
Fig. 2.0
Make the connections as indicated in figure 2.0 & fig 3.0. Watch the polarity of the loudspeakers. If a ring-core
transformer is used, it is possible that the OV (GND) connection consists of two leads. Finish all connec-
tions before switching on the power.
9
Fig. 3.0
10
9. PCB layout.
PCB
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