Pvelectronics Spectrum 1040 Quick start guide

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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Assembly N tes
Stainless Steel Case
F r Nixie Cl ck
Type Spectrum 18 / 1040

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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REVISION HISTORY
Issue
Number
Date Reas n f r Issue
1 20 July 2016 New document
1. APPLICABILITY
This case is suitable for the following versions of the Spectrum
Ni ie clock:
Spectrum 18: PCB date 1 October 2015, Assembled according
to Issue 6 instructions
Spectrum 1040: PCB date 5 November 2015, Assembled
according to Issue 6 instructions

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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2. PACK CONTENTS

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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3. ASSEMBLY GUIDE
3.1 Prepare the PCB
D4, D6 (5mm Yell w LED)
D5 (5mm Green LED)
LEDs D4, D5 and D6 need to be mounted as shown below (your
PCB may look a little different, but note the bending of the LED
leads). The originally longer lead goes to the pad marked +.
Place a self adhesive rubber foot on the base of the HV module as
shown, to prevent any possibility of contact with the metal case
3.2 Prepare the Case
Carefully remove all protective film from the stainless steel case
components. Peel from one corner.

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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3.3 M unt the PCB spacers n the PCB
Mount the components onto the PCB as shown below. Do this for
all si PCB mounting holes.
3.4 Prepare the DS18B20 Temperature Sens r
Separate the 3 way cable as shown and part the 3 leads of the
DS18B20 a little. Also cut 3 small pieces of clear heat shrink
insulation about 10mm long.
Strip 2mm of the insulation from the end of each of the 3 wires,
and tin the e posed copper with solder. Then slip the heat shrink
pieces over as shown below:

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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Then solder onto the DS18B20, slip the heat shrink over the
e posed joints and shrink with a heat gun:
Finally, strip the insulation from the other end and solder to the
PCB. Take great care to ensure the IC has the correct orientation
with respect to the PCB markings. There is no need to feed the
wires into the PCB holes, you can just lay the wires over the pads
and solder in place:

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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3.5 Apply rear legend
Remove the film from the adhesive side and attach the legend as
shown. At the end of the case assembly, also remove the front film
from the legend.
3.6 Feed the DS18B20 sens r thr ugh
From the inside of the case, feed the DS18B20 sensor through the
5mm rear hole which does not have a legend close to it.
3.7 Place PCB in case
Start by feeding both neons into their holes in the top part of the
case. Then you can tilt the PCB forwards so that the front he
spaces clear the case. Push forwards, and then tilt the PCB back
again and the rear he spacers will clear the case.
At this point, the PCB will be loosely in the case top part.
It is now necessary to work the 3 LEDs into their respective holes.
Temporarily secure the PCB in the correct position by using 4 of the
6mm screws to attach the 20mm he spacers to the top case part.

Stainless Steel Case - Spectrum 18 / 1040
Issue 1 (20 July 2016)
www.pvelectronics.co.uk
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When the LEDs are in their holes, you can remove the screws but
do not allow the PCB to move with respect to the case, or the LEDs
will come out of their holes. If you grip the assembly as shown
below, you can keep the PCB in the correct position whilst you
remove the screws and move to the ne t step:
3.8 Place base c mp nent
Keeping the PCB in position, place the base component, and then
secure using the si M3 6mm screws. Do not overtighten the
screws. Place the 4 rubber feet at the corners of the underside of
the case.
3.9 Final assembly
Install the tubes into their sockets, remove the film from the rear
legend and finally place the glass neon covers over the AM / PM
neon indicators.