Elby Designs Panther Series Manuel utilisateur
Panther Series – ED108 ChaQuO
Elby Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
1 of 3
The ED108 – ChaQuO module is constructed
around 2 main boards and 6 Panther Support
boards as shown in the picture to the left.
The 3 boards shown at far left form the Quadrature
Oscillator section whilst those to the right form the
Chaos Generator. As such, each section can be
built and operated as an individual module.
The ED108 panel comprises 4 columns with
printed-circuit assemblies assigned as follows:-
Column Function PCB’s
1 Chaos Generator Control Section ED108 Chaos Generator
2 Chaos Generator Input/Output Section Panther-Pot plus 3 Panther-Carrier
3 Quadrature Oscillator Control Section ED108 Quadrature Oscillator plus 1 Panther-Carrier
4 Quadrature Oscillator Output Section Panther-Jack
Chaos Generator (Column 1 & 2)
Quadrature Oscillator (Coulmn 3 & 4)
As with most pcb construction, start with the smaller, low-profile components such as resistors and diodes
and build up in the height of components. Pay particular attention to the orientation of polarised components
such as diodes, electrolytics and IC sockets. Leave the panel components until last. When the remainder of
the board has been assembled and checked, use the front panel as an alignment guide when installing the
panel components. The anti-rotation tab on any pots needs to be broken off (use a pair of strong pliers to
snap the piece off). Position the panel components on to the pcb and offer the assembly up to the panel.
Check that all the components are sitting square to the panel and then tack each component in to place by
applying a solder blob to a leg on each component. Carefully remove the panel and solder all remaining pins
in to place and re-solder, as required, the tacked pins. Repeat for all boards as required. When installing
Panther-Carrier boards, solder the 4-way header in to the main board checking that it is perpendicular to the
board. Place the (loaded) Panther-Carrier board on to the header and the offer the board up to the front
panel treating the Panther-Carrier board as any other panel component. Again, when satisfied with the
Panther Series – ED108 ChaQuO
Elby Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
2 of 3
positioning of the Panther-Carrier board, tack one of the header pins. Remove the front panel and solder the
remaining pins. Note: as we are using double-sided boards with plated-thru holes, you can solder the header
pins on the topside of the pcb. There is no need to solder on the underside of the board as well.
Regularly check your work for solder splashes and dry-joints and when finished, clean the board using a
suitable cleaning solution to remove excess flux and other contaminants.
NOTE:
An error has been uncovered on the Quadrature Oscillator that results in the HI-LO range switch on the
Panther front panel being incorrectly labelled i.e. the HI and LO positions have been reversed. If not using
the Panther front panel then this errors just results in the HI frequency range being in the down position while
the LO frequency range will be in the up position.
To correct this error the following modification is recommended:-
•Looking at the range switch from behind, cut off the 2 right-hand most legs as can be seen in the
picture below left.
•After install the switch, install 2 wire links to connect the outside pins of the switch as shown below
right.
Nearest 2 legs of S101 have been removed by cutting them to
about 5mm above the pcb
Fit 2 wire links as shown
Panther Series – ED108 ChaQuO
Elby Designs - Laurie Biddulph
9 Follan Close, Kariong, NSW 2250, Australia
3 of 3
With all four sub-assemblies completed and checked it
is time to assemble the complete module. Mount each
sub-assembly to the front panel being careful to guide
the panel components through their relevant panel
holes. As each module is mounted, fit a fixing nut to
one of the central panel components and repeat until
all sub-assemblies are in place. You should now check
the positioning and alignment of each sub-assembly
and then apply the remaining fixing nuts and tighten
them firmly in to place taking care not to scratch the
panel.
Connect the various Panther-Cables to the
appropriate modules using the photographs in this
document as a guide.
Your module is now ready for operation. There are
no adjustments required for this module.
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