1. DL manuals
  2. Velleman
  3. Amplifier
  4. K8060
  5. Assembly Manual

Velleman K8060 Assembly Manual

Manual is about: 200W DISCRETE

Summary of K8060

  • Page 1

    200w discrete power amplifier k8060 illustrated assembly manual h8060ip-1 total solder points: 74 difficulty level: beginner 1 2 3 4 5 advanced ideal fo r active speake r system or subwoo fer, gui tar amp , home theatre system s, instru ment a mp, etc ..

  • Page 2

    2 specifications: excellent value for money full discrete design using epitaxial darlington transistors dc supply circuit on board with led indication ideal for active speaker system or sub woofer, guitar amp, home theatre systems, instruments amp…. Comes complete with transistor isolators, spacers ...

  • Page 3

    3 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 ...

  • Page 4

    4 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 ! Axial components are t...

  • Page 5

    5 construction d1 : 1n4148 d2 : 1n4148 1. Diodes. Watch the polarity ! D... Cathode zd1 : 9v1 2. Zenerdiode. Watch the polarity ! R1 : 47k (4 - 7 - 3 - b) r2 : 100 (1 - 0 - 1 - b) 3. Resistors r... Cathode zd... R3 : 3k3 (3 - 3 - 2 - b) r4 : 330 (3 - 3 - 1 - b) r5 : 220 (2 - 2 - 1 - b) r6 : 47 (4 - ...

  • Page 6

    6 construction & connection c1 : 47pf (47) c2 : 47pf (47) c3 : 47pf (47) c4 : 680pf (681) c5 : 680pf (681) c6 : 47nf (473) c7 : 100nf (104) c8 : 100nf (104) 6. Capacitors. C... Ld1 : red 9. Led. Watch the polarity! Ld... Cathode t1 : bc640 t2 : bc640 t3 : bc639 t4 : bc547b t5 : bc557b 8. Transistors...

  • Page 7: Important

    7 construction r19 : 0,47 r20 : 0,47 13. 5w resistors r... 2mm c12 : 3300µf c13 : 3300µf hint for tweakers : replace the original caps with 4700µf/50v types for even better performance. 14. Electrolytic capacitors. Watch the polarity ! C... Important check the complete assembly carefully before moun...

  • Page 8

    8 final assembly a custom pre-drilled heat sink is available from your distributor (order code hsvm100). Any other heat sink must be able to dissipate at least 30w (1.25°c/w) (see fig.1.0). Use the template as a drill guide . 15. Final assembly fig. 1.0

  • Page 9

    9 • mount 4 bolts + 8 nuts (pcb support). (fig.2.0) final assembly 2 x m3 nut m3 15mm bolt • slide the pcb over the 4 bolts, and fix using 4 nuts (fig 3.0). Fig. 2.0 fig. 3.0

  • Page 10

    10 transistor t6 16. Mounting the transistor t6 on the heat sink: • apply a drop of heat conductive compound in the heat sink hole (fig. 4.0). Fig. 4.0

  • Page 11

    11 • insert the transistor (bc547) in the hole (fig. 5.0). Pay attention to the position of the transistor (fig 6.0)! • carefully bend the leads and solder them to the connector t6, see figure 7.0. Fig. 5.0 fig. 6.0 fig. 7.0 transistor t6 bc547.

  • Page 12

    12 power transistors • apply a drop of heat conductive compound on the heat sink (see fig 8.0.) • mount the isolation mica onto the heat sink, check the position of the hole. Apply a drop of heat conductive compound on the mica. • carefully bend the leads, see fig. 9.0 • mount the transistor on the ...

  • Page 13

    13 • solder the connections of the power transistors with the pin headers, see fig. 10. Fig. 10 power transistors.

  • Page 14

    14 • use a 2 x 25 to 30vac / 100 - 120va transformer. • connect the transformer to the ac power connections of the pcb. • the velleman transformer colour scheme is specified on the pcb. Careful : other brands may feature a different scheme ! Y: yellow , r: red , b: blue , g: grey . • make sure to pu...

  • Page 15

    15 test & adjustments 2 x 25 to 30vac transformer 1a t (slow-blow) fuse mains 4 - 8 ohm inputsignal * * optional * * * * * ac 0 0 ac + - volume control 47k log..

  • Page 16

    16 test & adjustments • turn the rv1 bias adjust trimmer fully counter clockwise (turn left) before applying power for the first time. Advice: for safe first-time testing insert a 60w light bulb in series with the ac power and the trans- former. If the light bulb lights up continuously, disconnect t...

  • Page 17

    17 final connection: • the input (gnd and in) can be connected directly to an audio source (pre-amp or mixing panel) or a vol- ume control (potentiometer) can be used (see diagram). • connect the speaker (4 ohm or higher) to the connections ls+ and gnd. Caution : voltages of about 80v are present. M...

  • Page 18

    18 19. Pcb layout. Pcb.

  • Page 19

    19 20. Diagram diagram title gnd +40v k8060 100w amplifier gnd 1n5404 d6 1n5404 d3 1n5404 d5 1n5404 d4 ac-0 sk6 ac-0 sk5 ac sk3 ls+ sk8 ls- sk7 4700µ/50v c13 4700µ/50v c12 ac sk4 -40v 100nf c7 100nf c8 47nf c6 47p c2 47p c1 680p c4 47p c3 680p c5 10µf c9 33k r18 47k r1 3k3 r11 3k3 r9 3k3 r3 10 r10 l...

  • Page 20

    Modifications and typographical errors reserved © velleman components nv. H8060ip - 2005 - ed1 velleman components nv legen heirweg 33 9890 gavere belgium europe www.Velleman.Be www.Velleman-kit.Com 5 4 1 0 3 2 9 3 3 5 0 7 6.