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PV Electronics Frank 3 Assembly Instructions And User Manual

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Assembly Instructions
And
User Guide
Nixie Clock Type 'Frank 3'
Software version: 5R
Hardware Revision:
12 Dec 07, 7 Jan 08
Nixie Clock 'Frank 3'
- 1 -

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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: 5R Hardware Revision: 12 Dec 07, 7 Jan 08 Nixie Clock ‘Frank 3’ - 1 -...

  • Page 2: Table Of Contents

    4.17 SW1, SW2..............16 4.18 Wire Link..............16 5. FINAL TESTING OF PCB ............ 17 6. HOW TO OPERATE THE CLOCK ......... 18 7. CIRCUIT DIAGRAM ............20 8. DIMENSIONED DRAWING ..........21 Nixie Clock ‘Frank 3’ - 2 -...

  • Page 3: Introduction

    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.

  • Page 4: Safety

    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 Clock ‘Frank 3’ - 4 -...

  • Page 5: Tools And Equipment Required

    Mains AC to AC adapter (This is important, as the AC signal is needed for the timebase) Output 9-12V AC Minimum power output capability of 250 mA Output plug: 2.1mm pin A suitable adapter is shown in figure 1 below: Figure 1 Nixie Clock ‘Frank 3’ - 5 -...

  • Page 6: List Of Components

    IN-17 Nixie tube SW1, SW2 Miniature push button 1K Potentiometer ‘Frank 3’ PCB IC Socket 18 Way IC Socket for IC3 CONN 2.1mm Power socket Cable ~60mm two way cable SKT1-44 1mm Harwin solder-in socket Nixie Clock ‘Frank 3’ - 6 -...

  • Page 7: Parts List

    IC Socket, 18 way DIL 2.1mm Power Connector Cable – 60mm piece 1mm Harwin solder-in socket It is recommended that the kit is checked against the list above, to ensure all parts are present before commencing assembly. Nixie Clock ‘Frank 3’ - 7 -...

  • Page 8: How To Identify The Correct Components

    The four 1N4001 diodes D1-D4 are black and are marked 1N4001. The other black diode is D5, and again due to part availability it may be substituted for an equivalent. D6 is the small, glass bodied diode Nixie Clock ‘Frank 3’ - 8 -...

  • Page 9: Assembly Of The Pcb

    IC2 must be oriented correctly. The notch or dot at one end corresponds to pin 1. This goes into the SQUARE pad. Also place and solder in C3. Figure 3 shows D5, IC2 and C3 correctly placed. Figure 3: IC2, C3 and D5 Nixie Clock ‘Frank 3’ - 9 -...

  • Page 10: Ic1 And Q1

    6. Bent 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. Figure 6: Resistor leads formed for mounting upright. Nixie Clock ‘Frank 3’ - 10 -...

  • Page 11: Variable Resistor Vr1

    Follow the bending profile in figure 8, then place and solder Q2 into position as shown in figure 9. Figure 8: Bending the leads of MOSFET Q2. Nixie Clock ‘Frank 3’ - 11 -...

  • Page 12: Inductor L1

    As this cable carries AC, the conductors are not polarised. Referring to Figures 10-13, tin the ends of the cables, and solder to the 2.1mm connector as shown. Only 2 tags are used on the connector. Nixie Clock ‘Frank 3’ - 12 -...
  • Page 13 Figure 13: Connect the power input leads to the pads on the Nixie Clock ‘Frank 3’ - 13 -...

  • Page 14: Testing The Power Supplies

    PCB marking. Note: R27 is not used. Also, ignore the markings referring to ‘DCF77’ PCB. This feature will be implemented in future versions. Nixie Clock ‘Frank 3’ - 14 -...

  • Page 15: Q3-Q8, Q9-Q14, R7-R24

    To facilitate easy insertion of the flying leads into the small holes, it helps enormously to trim the flying leads at an angle with a pair of scissors as shown in figure 15. Figure 15: IN-17 flying leads trimmed to aid insertion into the PCB Nixie Clock ‘Frank 3’ - 15 -...

  • Page 16: Sw1, Sw2

    1 of IC2 as shown. figure 16 Then, insert and solder a small wire into the plated through hole. Attach the other end to pin 1 of IC2 as shown below in figure 17 Nixie Clock ‘Frank 3’ - 16 -...

  • Page 17: Final Testing Of Pcb

    Re-solder the power input cable, if you removed it for ease of assembly. The clock is now ready for use!! Don’t forget to install the Neon Lamps, when you have finished your enclosure. Nixie Clock ‘Frank 3’ - 17 -...

  • Page 18: How To Operate The Clock

    SW2: Up / Reset Seconds Setting 50Hz or 60Hz Mode With the clock powered off, hold BOTH buttons down. Power up the clock and either 50 or 60 will display, indicating the current mode stored in Nixie Clock ‘Frank 3’ - 18 -...
  • Page 19 Briefly Press ‘Set / Blank’ button to toggle between the three display modes: 1. Blanked display, tubes are switched off eg for tube saving or for night time 2. Standard change of digits 3. Fading digits Nixie Clock ‘Frank 3’ - 19 -...

  • Page 20: Circuit Diagram

    7. CIRCUIT DIAGRAM Nixie Clock ‘Frank 3’ - 20 -...

  • Page 21: Dimensioned Drawing

    8. DIMENSIONED DRAWING Nixie Clock ‘Frank 3’ - 21 -...

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