Velleman K8077 Page 8 Illustrated Assembly Manual Download | Manualshive

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8

C25 … C28 : 10µF / 35V

C29

: 22µF / 50V

C30 … C35 : 100µF / 50V

C36 :

470µF

/

16V

construction

RV1 : Stereo log. 50K

RV2 : Stereo log. 50K

17. Potentiometers

18. Electrolytic capacitors.

Watch the polarity !

C...

SW1 : Phase

SW2 : Mode

Position the switches onto the PCB first.

Mount a wire jumper onto each switch
connector and connect these with the switch
connector on the PCB.

19. Switches

Fig 1.0

Fig 1.0

COMPONENT SIDE

CO

MP

ON

EN

T S

IDE

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Summary of Contents for K8077

Page 1: ...solder points 383 Difficulty level beginner 1 2 3 4 5 advanced 100W SUBWOOFER KIT ILLUSTRATED ASSEMBLY MANUAL H8077IP 1 Powerful bass from a small cabinet thanks to the dual speaker principle K8077 K...

Page 2: ...bility Full range option for use in active speaker system separate chamber for electronics avoids air leaks Specifications power output 100Wrms 4ohm 10 THD filter freq response wide 25 110Hz 6dB narro...

Page 3: ...gonal 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 compo nents in place Small...

Page 4: ...manual updates indicated as NOTE on a separate leaflet 1 3 Soldering Hints 1 Mount the component against the PCB sur face and carefully solder the leads 2 Make sure the solder joints are cone shaped a...

Page 5: ...0 4 B R25 390K 3 9 4 B R26 15K 1 5 3 B R27 470 4 7 1 B R28 15K 1 5 3 B R29 100K 1 0 4 B R30 100K 1 0 4 B R34 10K 1 0 3 B R35 10K 1 0 3 B R36 10K 1 0 3 B R37 10K 1 0 3 B R39 10K 1 0 3 B R40 100K 1 0 4...

Page 6: ...IC2 14p IC3 8p 8 IC sockets Watch the position of the notch C1 390pF 391 C2 390pF 391 C3 100nF 104 C4 100nF 104 C5 100nF 104 C6 100nF 104 C7 100nF 104 C8 100nF 104 C9 100nF 104 C10 100nF 104 C11 680pF...

Page 7: ...Transistors T1 R59 0 47 R60 0 47 13 5W resistors R 2mm SK12 GND 14 PCB tab LS LS AC BLUE AC RED AC GREY AC YELLOW 15 Flat receptacles SK SK11 Remark if you wish to have a POWER and ON indication in a...

Page 8: ...Stereo log 50K 17 Potentiometers 18 Electrolytic capacitors Watch the polarity C SW1 Phase SW2 Mode Position the switches onto the PCB first Mount a wire jumper onto each switch connector and connect...

Page 9: ...HT SK3 HIGH LEVEL IN RIGHT Mount now SK2 LOW LEVEL IN LEFT SK4 HIGH LEVEL IN LEFT 22 Female cinch connectors SK SOLDERSIDE SK LD1 POWER red LD2 ON red Mount both LEDs on the solderside at 8mm of the P...

Page 10: ...10 Fixing the knobs Slide the knobs fully onto the potentiometer axes Turn potentiometers fully counterclockwise 24 Fixing the knobs Watch the position of the dot...

Page 11: ...B onto the heatsink M3 nut Spacer M3 bolt 16mm Fixing the PCB Fixing the PCB onto the heatsink 1 Slide 2 x 5mm plastic spacers over the black bolts 2 Carefully position the PCB onto the two bolts 3 fa...

Page 12: ...A connectors do not touch the heatsink the knobs do not touch the heatsink the switches do not touch the heatsink 4 fit the remaining bolts and spacers 5 fit the nuts and tighten them all while mindin...

Page 13: ...nto the heatsink so that the hole coincide with the hole in the heatsink press gently apply a drop of heat conductive compound on the mica Mount the transistor on the heatsink using a 16mm bolt lock w...

Page 14: ...he leads as indicated Put a large drop of heat conductive compound on the heatsink Solder the diode to the two outer pins of the pin header Make sure that the diode is bend to wards the heat conductiv...

Page 15: ...on the heatsink Solder the transistor to the remaining pins of the pinheader The flat side of the transistor must face the heatsink Make sure that the transistor and diode leads do not touch each othe...

Page 16: ...k Make sure the 0 position of the switch faces the AC connector Mounting power supply section 29 Mounting the power supply section 10mm screw 1 Mounting the AC connector Position the AC connector at t...

Page 17: ...17 2A T 3 Mounting the fuse holder Place the fuse holder and fix with the included nut Place a 2A T fuse Mounting power supply section If necessary enlarge mounting hole...

Page 18: ...Fixing the transformer Rotate the transformer in such a way that the red yellow blue grey wires point towards the PCB Tighten the nut Mounting power supply section bolt washer transformer washer disk...

Page 19: ...o the red ring terminal Connect the ring terminal to the chassis by means of a black bolt spring washer and nut Solder the other end to the PCB tab SK12 Mounting power supply section 1 2 M3 nut spring...

Page 20: ...he sleeve over the connector Connect the wires to the PCB Mind the colours Group the wires by means of two cable ties Cut the largest of the two heatshrink tubes into 3 pieces 3cm 3cm 4cm SOLDER REMAR...

Page 21: ...se holder Don t forget to slide a piece of heatshrink tube 4cm over the wire Connect the remaining fuseholder connector with the power switch Don t forget the heatshrink tube Depending on your local A...

Page 22: ...24V or slightly higher Right lead of R37 5V 4 Turn off the power and mount the IC s 5 Turn on the power again repeat the above measurements If OK flip the MODE switch to ON Once again if the light bul...

Page 23: ...losure according to the drawings 1 to 3 Fix the bass reflex tube according to drawing 4 H Drawing 1 Position both speakers in such a way that their connectors face each other Mark the holes and remove...

Page 24: ...the 4 plastic feet by means of a 23mm screw and put the enclosure on its feet J put the heatsink in place and mark the 10 holes remove the heatsink pre drill the holes with a 1 5mm drill connect the r...

Page 25: ...o a wall or corner the higher the efficiency volume will be at the cost of a reduced sound quality Remark The unit is not magnetically shielded Do not operate the unit in the close vicinity of CRT tel...

Page 26: ...r outlets The audio inputs accept either a line level signal or a speaker level signal If your audio system is equipped with an adjustable line level output you can connect it to the LINE IN inputs of...

Page 27: ...will automatically turn on when an audio signal is present If the audio signal is absent for a while e g because the source has been turned off the unit will return to the standby mode Put on your fav...

Page 28: ...28 PCB 35 PCB...

Page 29: ...D8 D10 D7 ZD3 15V ZD4 15V R31 820 0 6W R32 820 0 6W C30 100 50V C31 100 F 50V C32 100 F 50v C33 100 F 50V GND auto C19 10n GND R37 10K 15V 15V R36 10K R40 100K GND LD1 POWER LD2 ON 1 2 3 4 SK11 remot...

Page 30: ...D14 1N5404 D11 1N5404 D13 1N5404 D12 1N5404 SK5 LS 0 47 5W T7 BC547 T2 BC547 T5 BC557 T6 BC639 R44 330R R42 100R R55 680 R48 680R R50 3K3 RV3 1K ZD5 ZB9V1 40V 40V 40V GND GND GND GND 40V 40V 40V C36 4...

Page 31: ..._GND R6 4K7 R3 4K7 R5 1K R4 1K S_GND R12 22K R13 22K filter filter amp Low pass C4 100n C3 100n S_GND 15V 15V C7 100n R30 100K S_GND R20 1K S_GND R21 1M R19 10K ZD2 5V1 S_GND D1 BAT85 S_GND C29 22 F 6...

Page 32: ...VELLEMAN KIT NV Legen Heirweg 33 9890 Gavere Belgium Europe Info http www velleman be Modifications and typographical errors reserved Velleman Kit nv H8077IP 2006 ED1 rev 3 0 5 4 1 0 3 2 9 3 5 9 6 7 6...

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