Velleman K4304 Illustrated Assembly Manual Download | Manualshive

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18. PCB LAYOUT

PCB & Diagram

LOW IN

GND

C1

220n

R1

47K

RV1

220K

R2

47K

UA741

IC1

+V

2

3

4

7

6

D1

1N4148

D2

1N4148

R3

330

+V

R4

10K

C3

47u

6V2

ZD1

C4

47u

5

4

SIG

RLO

6

RHI

REF

7

R6

2K2

R5

10K

ADJ

8

J1

DOT/BAR

+V

9

MODE

+V

3

2

V+

V-

LD2

GREEN

18

-10dB

LD3

GREEN

-7dB

17

LD4

GREEN

-5dB

16

LD5

GREEN

-3dB

15

LD6

GREEN

-1dB

14

LD7

GREEN

0dB

13

LD8

YELLOW

+1dB

12

LD9

YELLOW

+2dB

11

LD10

RED

+3dB

10

LD1

GREEN

-20dB

1

R8

68/1W

+V

+

GND

D3

1N4007

C5

47u

C2

220n

+V

IC2

LM3916

10...15VDC

R7

470K

HIGH IN

J1 CLOSED = BAR MODE

J1 OPEN= DOT MODE

SENSITIVITY

modifications reserved

19. DIAGRAM

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Summary of Contents for K4304

Page 1: ...10 LED MONO VU METER K4304 ILLUSTRATED ASSEMBLY MANUAL H4304IP 1 Total solder points 93 Difficulty level beginner 1 2 3 4 5 advanced Add a visual readout to your existing or new equipment...

Page 2: ...on Attractive display window supplied which can be used both horizontal as vertical If wanted the unit can be calibrated by means of a trim potentiometer Specifications 1 X 10 LED s Bar or dot mode In...

Page 3: ...he 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 ha...

Page 4: ...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...

Page 5: ...B R3 330 3 3 1 B R4 10K 1 0 3 B R5 10K 1 0 3 B R6 2K2 2 2 2 B R7 470K 4 7 4 B 5 Resistors R CATHODE ZD IC1 8p IC2 18p 6 IC sockets Watch the position of the notch J1 J2 mount for BAR mode do not moun...

Page 6: ...struction C1 220nF 224 C2 220nF 224 7 Capacitors 11 IC s Watch the polarity C R8 68 6 8 0 B 10 1W resistor R 2mm RV1 220K Sensitivity 8 Trim potentiometer C3 47 F C4 47 F C5 47 F 9 Electrolytic Capaci...

Page 7: ...endicular or parallel see also points 13 and 14 Perperdicular mounting Parallel mounting 12 MOUNT THE LEDs Check the polarity PCB SOLDER SIDE LED 13mm SOLDER PCB SIDE LED LD1 green LD2 green LD3 green...

Page 8: ...PARALLEL MOUNTING optional A Make the holes in the housing or panel fig 1 0 B Mount the suitable spacers fig 2 0 6mm M3 COUNTERSUNK HEAD BOLT LOCK WASHER 10mm M3 SPACER FRONTPANEL 2 3mm FRONTPANEL 10m...

Page 9: ...9 6mm M3 COUNTERSUNK HEAD BOLT 4mm M3 BOLT 2 3mm FRONTPANEL 10mm M3 SPACER 4mm M3 BOLT PCB LOCK WASHER C Mount the PCB onto the spacers fig 3 0 Fig 3 0 Parallel mounting...

Page 10: ...ke or search for a suitable bracket B Make the holes in the housing or panel and mount the bracket fig 5 0 Fig 5 0 Perpendicular mounting LOCK WASHER M3 NUT 10mm M3 COUNTERSUNK HEAD BOLT BRACKET FRONT...

Page 11: ...mm FRONTPANEL PCB M3 NUT LOCK WASHER SOLDER SIDE 20mm M3 BOLT 20mm M3 BOLT BRACKET BRACKET 15mm SPACER LOCK WASHER M3 NUT FRONTPANEL C Mount the PCB with spacers onto the bracket fig 6 0 Fig 6 0 Perpe...

Page 12: ...this can also be a standard DC adapter You can also build your own power supply see diagram Use a 2x12V transformer two rectifier diodes and a electrolytic capacitor or use a single 12V transformer w...

Page 13: ...eaker level output and connecting a power supply from 10 to 15VDC 110mA max Connect the unit to a suitable supply voltage between 10VDC and 15VDC this can also be a standard DC adapter You can also bu...

Page 14: ...not connect the unit to a high power car booster or car stereo this equipment uses isolated ground connection The connection to this kind of amplifier can cause permanent damage to the amplifier or ca...

Page 15: ...2K2 R5 10K ADJ 8 J1 DOT BAR V 9 MODE V 3 2 V V LD2 GREEN 18 10dB LD3 GREEN 7dB 17 LD4 GREEN 5dB 16 LD5 GREEN 3dB 15 LD6 GREEN 1dB 14 LD7 GREEN 0dB 13 LD8 YELLOW 1dB 12 LD9 YELLOW 2dB 11 LD10 RED 3dB 1...

Page 16: ...ions and typographical errors reserved Velleman Components nv H4304IP 2004 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 2 8...

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