LED CLOCK with SLOW ON DIMMER ightlig clock with n D E L e iv ct Attra Total solder points: 120 Difficulty level: beginner 1 2 3 4⌧5 n ht connectio advanced K8091EU ILLUSTRATED ASSEMBLY MANUAL H8091IP-1
Features & specifications The K8091 is an attractive LED clock with connection possibility for a nightlight. 15 minutes before the set time, the light intensity of the connected light will increase up to full power at set time and beeps will be heard. The beep length is gradually built up so you will not be startled by a sudden alarm signal. Features : clock with red 7-segment display.
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.
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.
Construction (1) ASSEMBLY OF THE COMPONENT SIDE 3. Zener diode (check the polarity) 1. Resistors ZD... ZD1 : 15V0 CATHODE R... 1/8W: R1 R2 R3 R4 R5 R6 R7 : : : : : : : 100 100 100 100 100 100 100 (1 - 0 - 1 - B) (1 - 0 - 1 - B) (1 - 0 - 1 - B) (1 - 0 - 1 - B) (1 - 0 - 1 - B) (1 - 0 - 1 - B) (1 - 0 - 1 - B) R13 : 10K R14 : 10K (1 - 0 - 3 - B) (1 - 0 - 3 - B) R16 : 10 (1 - 0 - 0 - B) 4. IC socket.
Construction 13. Capacitors 8. Transistor C6 : 100nF C7 : 470nF T1 : BC547 T1 9. Voltage regulator 14. Push buttons VR2 : UA78L05 SW1 SW2 SW3 VR... 10. 1W Resistor 15. Triac TR1 : BT136 R17 : 220 TR... (2 - 2 - 1 - B) 11. Electrolytic capacitors. Watch the polarity ! C... C8 : 220µF C9 : 10µF 16. IC 12.
Construction (2) MOUNT THESE COMPONENTS ON THE PCB SOLDERSIDE, SOLDER THEM ON THE COMPONENTS SIDE 1. Four digit display & coil • Mount the four digit display first. ! DY1 : 4-digit min. 2mm • Mounting the coil: 1) 2) 8 Cut the rubber foot and stick it to the PCB as shown. Position the coil onto the rubber foot. Bend the leads carefully and insert them into their soldering pads. Solder carefully.
construction 2. Power cable • Cut 45cm of the included cable, measured from the female connector. +/- 45cm • Put both cables trough the hole on the rear cover of the housing. • Strip the male and female cable. • Connect the female cable/connector to the output connector SK2, the male cable/connector to output connector SK1 • When both cables have been connected to the K8091EU mount the strain relief and tighten up with the included 15mm bolts and M3 nuts.
Assembly 3. Assembly • Before mounting the PCB on its place you must mount the red display. • After placing the red display mount the PCB in the front cover with the 4-digit display facing to the red display window with 4 screws. • At last mount the rear of the housing and closed with 4 screws. Rear-sticker Stick the rear sticker on the backside of the housing, see figure.
Connection 4. Connection lamp power: 40 ~ 100W power supply: 220- 240V AC / 50Hz. 5. First power-up At first power-up Make sure to read and understand the important safety information on p. 3 At first power-up the product number 8091 and version software appear. Default setting The default setting is the blinking clock time 0:00 with a default alarm time 07:00 and alarm functions (light+buzzer) deactivated.
Setup Alarm: Note: If you are not entering this mode after the time setting you must press twice the 'select' button to enter the alarm mode. The 'alarm set' indicator blinks to confirm you're in the alarm mode. • Press the middle button to set the minutes, the right button for the hours. • Confirm the setting by pressing the select-button, once confirmed you will automatic enter the alarm function mode.
light control 7. Alarm process SEQUENCE: time alarm time Snooze 8 minutes ... Snooze * Off Off Buzzer on Light at maximum Buzzer on Alarm is switched off * min. 15 minutes The repeat function of the buzzer will automatically repeat every 8minutes until the alarm is deactivated by pressing the manual on/off button. Note: if the light was already illuminated more than 15minutes before the alarm time, will the alarm-light increase from that point to its maximum. 8.
PCB 9.
Schematic diagram 10.
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