Elektor 150189-1 Assembly Manual Download | Manualshive

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Backlight Circuit

Backlight PCB

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Summary of Contents for 150189-1

Page 1: ...6 Digit Nixie Clock version 2 Assembly Manual Revision 1 released 2020 06 02...

Page 2: ...ollowing tools and materials will be required to assemble the clock A good quality soldering iron 25 40W with a small tip 2 3 mm Thin solder wire with no clean flux Do not use any flux or grease A set...

Page 3: ...Schematic and PCB Layout Main and Display Circuit...

Page 4: ...Main PCB Display PCB...

Page 5: ...Backlight Circuit Backlight PCB...

Page 6: ...finished You can use a commercial flux remover or isopropyl alcohol IPA for this purpose Make sure this stuff never comes into contact with the acrylic parts of the optional enclosure Have the IN 12 n...

Page 7: ...it will be difficult to replace a defective nixie tube if the tubes are soldered directly to the board Mounting the tubes with tube socket pins recommended Pinch the tube socket pins between your fing...

Page 8: ...Solder the small neon lamps LA1 and LA2 into place The polarity doesn t matter They shouldn t protrude as much from the PCB as the nixie tubes The display PCB is now finished...

Page 9: ...Mount the following resistors R27 0 27 red violet silver gold R12 R16 1k brown black red gold R17 5k6 green blue red gold R6 R9 R11 R23 10k brown black orange gold R13 470k yellow violet yellow gold M...

Page 10: ...a few millimeters above the PCB as it will get hot when the clock is powered up Mount the ceramic capacitors C3 470 pF and C1 C4 C7 C15 C17 100 nF You may need to bend the wires of C3 a bit to get it...

Page 11: ...100 F 25 V and C13 10 F 25 V Watch the polarity Mount the red LED LED1 Watch the polarity The longest lead should go in the hole closest to R12 Keep the soldering time as short as possible as some LED...

Page 12: ...0 V Watch the polarity Put IC7 MC34063 in its socket Watch the position of the notch Make sure trimmer potentiometer P1 is in its middle position Power up the bord using a 9 V power supply capable of...

Page 13: ...its anti static bag and put it on a flat surface Connect the GPS patch antenna to the GPS module using the coaxial micro RF connector The connector might be a bit of a tight fit but be careful not to...

Page 14: ...e from the GPS module Shortly thereafter the time is displayed Depending on your local time zone this may be or not be correct but this can be adjusted later Please note that dimming may be active too...

Page 15: ...rotrude from the standoffs Please note that the M3x16 screws are part of the kit for the enclosure they are not included with the nixie clock kit If you are not going to use the enclosure mount the sp...

Page 16: ...pole socket header to the push button using 5 cm of black and red wire Insulate the solder joints using 14 mm pieces of 3 2 mm heat shrink tube Solder 5 cm pieces of black and red wire to the DC conne...

Page 17: ...d using the 3 pole socket headers and wires we prepared a few steps earlier Take care that the connections D 0 and on the backlight PCB are connected to the same D 0 and pins of connector K1 on the ma...

Page 18: ...rew and an M3 nut Do not over tighten the screw as the acrylic may break Use preferably a watchmakers or a jewelers screwdriver as these will prevent you from using too much force Screw two M3x8 machi...

Page 19: ...ht side The engraving should end up at the inside of the enclosure Attach the push button to the back panel A 10mm socket will come in useful here if not pliers will do the job If you decide to use pl...

Page 20: ...e acrylic from laser fumes during manufacturing Finally guide the tabs of the side panels into the slots of the base panel The engraving on the panels should face the inside of the enclosure Remove th...

Page 21: ...For configuring and using your clock we refer to Andy s Nixie Clock Update Operating instructions which can be downloaded as a separate document...

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