PV Electronics Frank 3 Assembly Instructions And User Manual
Nixie clock
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Summary of Contents for PV Electronics Frank 3
- Page 1 Assembly Instructions User Guide Nixie Clock Type ‘Frank 3’ Software version: 2.4 PCB Version: 04 Nov 10 (Crystal Timebase version) Nixie Tube Clock ‘Frank 3’ - 1 - www.pvelectronics.co.uk...
- Page 2 1. INTRODUCTION About the clock Nixie clock type ‘Frank 3’ is a compact design with all components and tubes mounted on a single PCB. The efficient use of board space is achieved by using a multiplex design to drive the display tubes. Only a...
- Page 3 This is not a finished product, and the person assembling the kit is responsible for ensuring that the finished product complies with any applicable local regulations governing electrical equipment, eg. UL, CE, VDE. Nixie Tube Clock ‘Frank 3’ - 3 - www.pvelectronics.co.uk...
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Page 4: Tools And Equipment Required
Output 9-12V DC Minimum power output capability of 250 mA Output plug: 2.1mm pin A suitable adapter is shown in figure 1 below: Figure 1 Nixie Tube Clock ‘Frank 3’ - 4 - www.pvelectronics.co.uk... -
Page 5: List Of Components
74141 / K155N Nixie driver Not installed Miscellaneous 100uH – 470uH inductor NE1, NE2 4mm wire ended neon lamp SW1, SW2, SW3 Miniature push button 1K Potentiometer IC Socket 28 Way IC Socket for IC2 Nixie Tube Clock ‘Frank 3’ - 5 - www.pvelectronics.co.uk... - Page 6 GPS / RFT Socket 6-Way Mini DIN connector 2.1mm Chassis power socket SKT1-44 1mm Harwin solder-in socket Piezo Sounder Insulation Silicone Insulation for Neons 32.768KHz Watch Crystal Nixie Tube Clock ‘Frank 3’ - 6 - www.pvelectronics.co.uk...
- Page 7 It is recommended that the kit is checked against the list above, to ensure all parts are present before commencing assembly. Don’t be alarmed if there are some extra components, as some component bags are shared between different kit types. Nixie Tube Clock ‘Frank 3’ - 7 - www.pvelectronics.co.uk...
- Page 8 The black diodes have a white orientation band and the pink diodes have a black orientation band. Place the diodes with the orientation band aligned with the band marking on the PCB. Nixie Tube Clock ‘Frank 3’ - 8 - www.pvelectronics.co.uk...
- Page 9 PCB. Insert IC3 directly into the PCB. Solder both components in place, but do NOT insert IC2 at this stage. This will be inserted at the very end of the assembly. Refer the picture below. Nixie Tube Clock ‘Frank 3’ - 9 - www.pvelectronics.co.uk...
- Page 10 The leads need to be formed as shown below. Bend the leads of each resistor as shown and solder in to the correct postion, making sure the component body is as close to the board as possible. Nixie Tube Clock ‘Frank 3’ - 10 - www.pvelectronics.co.uk...
- Page 11 Q2 and the central pin of Q2. Start by installing R42 (560 Ohm) as shown below. Lay the body of the resistor flat along the PCB: Then bend back the central leg of Q42: Nixie Tube Clock ‘Frank 3’ - 11 - www.pvelectronics.co.uk...
- Page 12 Finally install Q2, and solder its middle pin to the end of the resistor and clip the excess leads: Nixie Tube Clock ‘Frank 3’ - 12 - www.pvelectronics.co.uk...
- Page 13 In the picture below, the longer lead (+ve) and white stripe (-VE) can be clearly seen. Place each component as shown, with the longer lead in the hole marked ‘+’. Solder in and trim the leads Nixie Tube Clock ‘Frank 3’ - 13 - www.pvelectronics.co.uk...
- Page 14 VR1 will be used to tune the high voltage for the tubes to 170V. If the leads do not exactly match the PCB spacing, gently bend to fit into the holes. Nixie Tube Clock ‘Frank 3’ - 14 - www.pvelectronics.co.uk...
- Page 15 Start by bending the leads of each component as shown below: Then install as shown below, on the opposite side of the PCB to the main components. Note that the metal heatsinks are facing outwards. Nixie Tube Clock ‘Frank 3’ - 15 - www.pvelectronics.co.uk...
- Page 16 To install D9, and D10, the longer lead goes in the hole marked (+). The PCB should now look like the picture below: Nixie Tube Clock ‘Frank 3’ - 16 - www.pvelectronics.co.uk...
- Page 17 PCB. Position the LEDs so they are pointing through the holes in the PCB. Their positions can be adjusted later under power to give a uniform brighness. Nixie Tube Clock ‘Frank 3’ - 17 - www.pvelectronics.co.uk...
- Page 18 4.19 NE1, NE2 The 2 neons can now be mounted at a suitable height. Use small lengths of the clear insulation supplied on the leads to prevent shorts. Nixie Tube Clock ‘Frank 3’ - 18 - www.pvelectronics.co.uk...
- Page 19 If these values are good, slowly adjust the screw on VR1 to set the voltage at the 170V point to 170-175V. When finished, disconnect the power. If you do not get these voltages, do not proceed as you may damage the PCB. Contact support@pvelectronics.co.uk Nixie Tube Clock ‘Frank 3’ - 19 - www.pvelectronics.co.uk...
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Page 20: How To Operate The Clock
1 – fading digits Night mode override 0 – 50 (default 5) period (minutes) Snooze period 0 – 6 minutes (default) 1 – 9 minutes 2 – 12 minutes 3 – 15 minutes Nixie Tube Clock ‘Frank 3’ - 20 - www.pvelectronics.co.uk... - Page 21 2: Set this to ‘1’ to disable Auto DST adjust on WWVB Sync – eg. Arizona does not observe DST. Only active in WWVB Sync mode. 3. Press ‘SET’ briefly during blanking to show time for prescribed period. Nixie Tube Clock ‘Frank 3’ - 21 - www.pvelectronics.co.uk...
- Page 22 ‘ADJ’ buttons. When set, the alarm LED will also light. Cancelling alarm: Press ‘ALARM’ briefly to cancel alarm and enter snooze mode, or a longer press until the clock bleeps, to cancel snooze. Alarm remains set for the next day. Nixie Tube Clock ‘Frank 3’ - 22 - www.pvelectronics.co.uk...
- Page 23 After the first 10 successful frames, the LED will be ON if the clock has synchronised in the last hour; flashing if the last synchronisation was between 1 hour and 24 hours ago; and off if the last synchronisation is older than 24 hours. Nixie Tube Clock ‘Frank 3’ - 23 - www.pvelectronics.co.uk...
- Page 24 First, attach the antenna by soldering the two wires to the pads on the PCB: Then attach the cable with DIN connector as follows, making sure that the pink cable connects the two top pads as shown: Nixie Tube Clock ‘Frank 3’ - 24 - www.pvelectronics.co.uk...
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Page 25: Circuit Diagram
8. CIRCUIT DIAGRAM Nixie Tube Clock ‘Frank 3’ - 25 - www.pvelectronics.co.uk... - Page 26 Nixie Tube Clock ‘Frank 3’ - 26 - www.pvelectronics.co.uk...