User manual VELLEMAN K8040

[. . . ] Values in this assembly guide are correct* 3 Assembly hints 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. 1. 3 Soldering Hints : 1- Mount the component against the PCB surface and carefully solder the leads 2- Make sure the solder joints are coneshaped and shiny 3- Trim excess leads as close as possible to the solder joint AXIAL COMPONENTS ARE TAPED IN THE CORRECT MOUNTING SEQUENCE ! [. . . ] Then remove (scratch) the isolation from the connections using a knife. The back side corresponds to the thick line. TR. . . C. . . q q q q q q q q q q q q q C17: 10µF C18: 10µF C19: 10µF C20: 10µF C21: 10µF C23: 1µF C24: 10µF C25: 47µF/63V C26: 47µF/63V C27: 47µF/63V C28: 47µF/63V C29: 220µF/63V C30: 220µF/63V q TR1: TIC246 or eq. 10 Construction 18. LEDs q q q q COLOR= 2. . . 5 C31: 10. 000µF C32: 10. 000µF C33: 10. 000µF C34: 10. 000µF LD. . . CATHODE 21. Watch the position of the notch ! q LD1: LED3RL (3mm LED) q LD2: LED3RL (3mm LED) q LD3: LED3RL (3mm LED) q IC1: VK8040 (PIC12C508) q IC2: CA258 or eq. Short lead = Cathode or-- ! CAUTION: After bending the leads the long appearing lead will be the cathode! LD. . . CATHODE IMPORTANT Mount these LED's exactly like in the drawing, otherwise some LED's will Next: Solder one lead, and check the not fit correctly in the front panel. position, if necessary correct by heat- Please also use the front panel as a ing the soldering. Last: Solder the second connection. First: Bend the leads exactly like the drawing. 12mm C q q q q 7mm LD4: L-424YDT LD5: L-424YDT LD6: L-424YDT LD7: L-424YDT LD. . . Meter backlight: LD8 is a white LED serving as backlight for the power meter. q LD8: L5WD (5mm white) CATHODE 18mm 3mm 12 Construction 23. Mounting the Power IC q IC4: TDA7293 Mount the support plate onto the IC as shown in the drawing. ATTENTION : The bolt should be inserted on the side of the IC holder with the countersunk opening B !B A A Drop of heat conductive compound DO NOT TIGHTEN THE NUT YET 1. Position the IC onto the PCB. Mounting the power transformer and mains voltage selection Mount the transformer as in the drawing (see also the picture on the packaging) Use the supplied straps (4 pcs) to fix the transformer. Primary windings (MAINS) connection: Check the table on the PCB for the correct voltage selection and connect the wires : For 230V (220V to 240V), edge orange, then brown and black. Using a black marker, erase the not used voltage on the rear panel of the unit!230V ORANGE BROWN BLACK 120V BROWN ORANGE BLACK Secondary windings connection: Connect the Red, Yellow, Blue and Grey wire to the SK5/SK6 connector, check the colors on the PCB. 14 Enclosure preparation 25. Enclosure preparation q Cut the thread in the holes for the enclosure feet in one of the aluminum profiles, using the supplied special M4 screw as a tap. FIG. 1 q Mount the feet on the aluminum profile, using two M4 hexagonal Allen screws. It is advisable to stick the protection adhesive onto the feet. FIG. 2 q Cut the thread in the front and back of the aluminum profiles, using the supplied special M4 screw (4 holes per piece) FIG. 3 15 Enclosure preparation q Position the main PCB in the aluminum profile that is prepared with the feet. [. . . ] Mains voltage connection Check again all connections of transformer and mains preparation ! q Connect the mains wires to the mains connector SK3, Blue= Neutral, green/ yellow= Earth. q Connect a 60W light bulb in series with the Live (Brown wire) and the the q Connect a 10cm blue wire to Live connection on the PCB. Later these connection will be soldered to the mains connector. ! up. CAUTION: Some points on the PCB are connected to the dangerous mains voltage. Connect the mains AC voltage to the mains. See also the user manual about the power cord. FNormally after switching ON the amplifier, the light bulb should briefly light FIf the bulb glows constantly, disconnect the power immediately and re- check all connections. [. . . ]