Velleman High-Q Velleman-kit K3505 User manual

K3505
ILLUSTRATED ASSEMBLY MANUAL H3505IP-1
Total solder points: 94
Difficulty level: beginner 1 2 3 4 5 advanced
Nomoredeadbatteriesdueto
headlightsthatwerelefton.
CAR HEADLIGHT ALARM

VELLEMAN NV
Legen Heirweg 33
9890 Gavere
Belgium Europe
www.velleman.be
www.velleman-kit.com

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Features:
 Continuously repeated alarm tone for lights ON (may be disabled)
 Repeated alarm tone for lights OUT
 Only 3 wires are required for hook-up
Specifications:
 Supply voltage: 12V battery
 PCB dimensions: 48 x 57mm (1.9" x 2.2")
 Recommended housing: WCAH2855
Features & Specifications

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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 wet sponge or cloth, to keep it clean; then apply solder to the tip, to give it a wet look. This is called ‘thinning’ and will
protect the tip, and enables you to make good connections. When solder rolls off the tip, it needs cleaning.
• Thin raisin-core solder. Do not use any flux or grease.
• A diagonal 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 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 handy
1.2 Assembly Hints :
⇒Make sure the skill level matches your experience, to avoid disappointments.
⇒Follow the instructions carefully. Read and understand the entire step before you perform each operation.
⇒Perform the assembly in the correct order as stated in this manual
⇒Position all parts on the PCB (Printed Circuit Board) as shown on the drawings.
⇒Values on the circuit diagram are subject to changes.
⇒Values in this assembly guide are correct*
⇒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.
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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 !
DO NOT BLINDLY FOLLOW THE ORDER OF THE
COMPONENTS ONTO THE TAPE. ALWAYS CHECK
THEIR VALUE ON THE PARTS LIST!

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 R1 : 47K (4 - 7 - 3 - B)
 R2 : 47K (4 - 7 - 3 - B)
 R3 : 47K (4 - 7 - 3 - B)
 R4 : 47K (4 - 7 - 3 - B)
 R5 : 220K (2 - 2 - 4 - B)
 R6 : 470 (4 - 7 - 1 - B)
 R7 : 470 (4 - 7 - 1 - B)
 R8 : 10K (1 - 0 - 3 - B)
 R9 : 10K (1 - 0 - 3 - B)
 R10 : 1M (1 - 0 - 5 - B)
4. Resistors
R...
Construction
 D1 : 1N4148
 D2 : 1N4148
 D3 : 1N4148
 D4 : 1N4148
 D5 : 1N4148
 D6 : 1N4148
 D7 : 1N4148
 D8 : 1N4007
 D9 : 1N4007
2. Diodes. Watch the polarity !
D. . .
CATHODE
 IC1 : 14p
 IC2 : 14p
5. IC sockets, Watch the
position of the notch !
 Between IC1 & IC2
1. Jumper
 C1 : 100nF (104)
6. Capacitor.
 T1 : BC547B
7. Transistor.
 ZD1 : 2V4
3. Zener diode. Watch the
polarity !
ZD...
CATHODE
 Buz1
 Remove the safety sticker form
the buzzer, if any.
8. Buzzer
+BUZ...

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Construction
 J1 : 2P
 J2 : 3P
 IC1 : CD40106 or eq.

IC2 : CD4070 or eq.
11. IC’s. Check the position of
the notch!
 C2 : 22µF

C3 : 22µF

C4 : 22µF

C5 : 22µF

C6 : 22µF

C7 : 470µF
9. Electrolytic Capacitors.
Watch the polarity !
C...
10. Screw connectors

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Use and connection
Mount the circuit underneath the dash board and make the following connections: (see Fig. 1.0)
 Connect the GND connection with the chassis or the battery (-) pole.
 Connect the L connection with the connection carrying voltage when the lights are turned on.
 Connect the C connection with the connection carrying voltage when the contact is switched ON.
12. Use and connection
LIGHTS ON AND OFF
WARNING TO TURN
CAR LIGHT
CONTACT
K3505
CLGND
J2
Fig. 1.0

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If the alarm should only operate when the driver forgets to turn off the lights, a jumper should be inserted
between the J2 connections.
LIGHTS OFF ONLY
WARNING TO TURN
J2
GND L C
K3505
CONTACT
CAR LIGHT
Fig. 2.0
Use and connection

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13. PCB layout.
PCB
P3505'1
VELLEMAN
ZD1
BUZ1
J2
CLGND
C1
T1
D1
R10
R6
C6
D2
R9
D3 D4
D5
R7
R5
D6
C5
R8
D7
C2
C7
D8
D9
J1 R3
R1
R4
R2
IC1
C4
C3
IC2