Instruction/ maintenance manual of the product K4001 Velleman
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Specifi cation s Musi c output power : 7W /4ohm RMS output p ower : 3.5W /4ohm or 2 W /8ohm Power suppl y : 8-18VDC /0.5A Dim ensions : 55 x 35m m ( 2.
VELLEM AN NV Legen He i rweg 33 9890 Gavere Be lgiu m Eu rop e www.v ell e m an. be www.v ell eman- kit. com.
3 Features: T his small am plifi er is construc ted around the T DA2003 IC, capable of deli vering 4W rms at 4ohms . T he IC is c ompletel y therm ally and short- cir cuit pr otected. A con v ention al di rect c urrent c an be connected as suppl y. Specifications : Musi c output power : 7W /4ohm RMS output p ower : 3.
4 Asse mbly hin ts 1. Assembl y (Skipping this can l ead to t rou b l es ! ) Ok, so we have your at tent ion. T hes e hin ts will help you to make t hi s projec t successful. Read them carefully. 1.1 Make sure you have the r igh t t oo ls: • A good quality soldering iron (25-40 W ) with a small tip.
5 Ass em b ly hints 1.3 Soldering Hints : 1- Mount the component against the P CB s urface and c arefully solder the leads 2- Make sur e th e so lde r joints are cone-shaped and shiny 3- Trim ex ces s.
6 R1 : 47 0 (4 - 7 - 1 - B) R2 : 4,7 (4 - 7 - B - B) R3 : 100 (1 - 0 - 1 - B) 1. Resistors . R. . . C o ns tr ucti on C1 : 8n2 (82 2) C2 : 100n F (10 4) C3 : 100n F (10 4) 3. Capaci t or s. C4 : 10µ F C5 : 470µ F C6 : 1000µ F C7 : 1000µ F 5.
7 Sup ply c onn ect ion 7. Supply conne ction Fig. 1 .0 Fig ure 1 is an exam pl e of a su itab l e mai ns s up ply f or this cir cuit . N at urall y, you c an als o us e b att eries t o power th e circuit. FUS E 1A T F USEH OL DER TR ANS FOR ME R POW E R SWI TCH 2 40V 3A MAINS ST RAIN RE LIEF 12V AC 6VA RECTIFIER BRIDGE +- 1.
8 V o l ume c ontr ol Fig. 2 .0 47 K OHM LOG GND Signa l I N TO AMPLI F I ER SHI ELDED C ABLE P OTE N TI OM E TE R FROM SOURCE GND SI GNAL ( +) Adj ust th e vol ume b y c onn e c tin g a 47K l ogar ith mic p oten ti omet er as i ndic ated in fi gur e 2.
9 C o n nect i on exam ple Fig ure 3. 0 is an ex ampl e o f a conn ec tion di ag ram of a 4 or 8 ohm sp eaker that is conn ect ed to th e pins L S and G ND. Th e in put sig nal s h ould be c onn ec ted with th e IN and G ND pins . 9. Connect ion exa mple 4/8 OHM SPEAKER + - 8.
10 10 . PC B la yo ut . PCB.
11 11. D i agra m Di agr am.
5 4103 29 28900 3 Modifications and typographical error s reserv ed - © Velleman nv. H4001I P - 2004 - ED1_rev.1.
An important point after buying a device Velleman K4001 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Velleman K4001 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Velleman K4001 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Velleman K4001 you will learn all the available features of the product, as well as information on its operation. The information that you get Velleman K4001 will certainly help you make a decision on the purchase.
If you already are a holder of Velleman K4001, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Velleman K4001.
However, one of the most important roles played by the user manual is to help in solving problems with Velleman K4001. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Velleman K4001 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
