Specifications

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CAR BURGLAR ALARM

K3504

ILLUSTRATED ASSEMBLY MANUAL H3504IP - 1

Summary of content (16 pages)

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CAR BURGLAR ALARM K3504 e Low cost reliabl ILLUSTRATED ASSEMBLY MANUAL car alarm.
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Features & Specifications The alarm detects sudden voltage drops of the battery when the interior, trunk, or hood lights are switched on. To ensure correct operation, a number of control indications have been included, such as : flashing LED to indicate that the alarm is in standby mode after a set time (after you have left the car). Pre-alarm (built-in buzzer) to indicate that the alarm is activated, so that you will not forget to switch it off.
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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.
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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.
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Construction 1. Jumper wires 2. 1/4W resistors  D1  D2  D3  D4  D5  D6 R... J J J JI JC Continuous alarm : JC OR Intermittent alarm : JI  R1  R2  R3  R4  R5  R6  R7  R8  R9  R10  R11  R12  R13  R14  R15 : : : : : : : : : : : : : : : 1K 1K 10K 47K 47K 47K 47K 47K 47K 680 1M 1M 1M 220K 220K 3. Diodes.
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Construction 5. Capacitors c... 7. Transistors 9. Electrolytic capacitor. Watch the polarity !  T1 : BC547C  T2 : BC547C  C5 : 4µ7  C6 : 4µ7  C7 : 4µ7  C8 : 220µF  C9 : 220µF  C10 : 47µF  C11 : 47µF  C12 : 100µF  C13 : 100µF  T3 : BC557B  C1  C2  C3  C4 : : : : 10nF 10nF 100nF 100nF (103) (103) (104) (104) 8. Screw connectors 6. Trim potentiometers C... 10. Buzzer. Watch the polarity ! RV...
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Construction 11. Relay 12. IC's. Watch the position of the notch!  RY1 : VR15M121C (1 contact)  IC1 : UA741M  IC2 : CD4093  IC3 : CD4098  IC4 : NE555 RY...  Apply some extra solder to the wider PCB tracks, starting from the relay contacts towards contacts “NO” and “COM”.
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Test & usage 13. Test & Usage Connect the LED between the points LD1 and the earth (-). Connect the + and - of the battery direct to the + and - connections of the circuit. Remark: switching the + and - connections by mistake will only cause IC1 to be destroyed, because the rest of the circuit is protected by D7. + - + - Fig. 1 Turn both trimming potentiometers to their minimum position (completely to the left). The LED should be flashing now.
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Test & usage Connecting the point DIS to the + should extinguish the LED. Interrupting the connection should restore the flashing state after 2 seconds. This delay time, which is the step out delay time or in other words the delay time between the point of time the voltage disappears from the point DIS (coming from the ignition lock or from the remote control) and the rearming of the alarm, can be made longer with RV1. Remark: when the circuit is first powered on, the delay times may deviate.
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Final connection 14. Final Connection Take care that the under mentioned connections cannot be cut through from the outside. You can install a lamp under the bonnet which activates the alarm when the bonnet is opened. Install the LED by preference at a place where it is visible from the outside (use the supplied LED-holder if necessary). Connect the shortest connection of the LED to the earth (chassis) and its shortest connection to the point LD1 of the circuit.
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Final connection 2. Warning device connected to "+" MAX. 5A Fig.
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Final connection (B) Car burglar alarm used in combination with our RF codelock (K8057 & K8059 - VM109). Connect the klaxon or siren to the relay as shown in the figures. Attention: The common wire of the klaxon can be connected either to the + or the - of the alarm (check with a volt-meter). Connect the connecting terminals"+" and"-" of the alarm to the corresponding poles of the battery. Connect the point COM of the code lock with the "+" and the point NO with the connection DIS of the alarm.
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Final connection 2. Warning device connected to "+" Fig.
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PCB 15.
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Schematic diagram 16. Schematic diagram.
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VELLEMAN NV Legen Heirweg 33, B-9890 GAVERE Belgium (Europe) Modifications and typographical errors reserved © Velleman nv. H3504IP’1 - 2014 (rev.