Assembly Manual
DIGNA
Seite 4
Parts assembly on solder side and mounting into the aluminium frame
Flip the PCB so you can see the solder side. Solder first the four RCA sockets - and fix them
first on the shielding straps - next assemble the ground terminal and the two 6 and 8 pole DIP
switches S1 and S2, pay attention to a proper and even assembly.
Then fit the three 10 µF MUSE Electrolythic capacitors C19 / C39 / C21, whereby C21 must
be the 80 V type, followed by the two 33 nF WIMA capacitors C18 / C38 and the two 220 nF
capacitors C17 / C37.
The two small sliders TR1 and TR2 are assembled and next the potentiometer P1. It is very
important to ensure a clean right-angled seat. The spring tooth disc and the nut of the
potenziometers are not needed.
The wires of the two orange glowing 3 mm LEDs for the tube lighting are bent around 90 °
about 2 mm after exiting the body with tweezers the right way around (the long wire is the
anode), then fit these LEDs through the PCB holes in the middle of th tube socket and solder.
If you do not want to use the tube lighting, be sure to short the two solder pads for the LED with
a piece of wire.
The wires of the six 5 mm flat head UV LEDs are also angled, but only very
close to the component body; here a longer thumbnail can serve well. Please
note that two LEDs are fitted from the component side and four from the
solder side. It is recommended to solder the LEDs from the side from which
they were fitted on the PCB.
Now plug on the potentiometer knob: To do this, turn the wiper of the
potentiometer to a vertical position (12 or 6 o'clock). Fit the knob with the
marking pointing exactly after 12 o'clock (ie "upwards" in the direction of the
component side). Now fix the knob with its grub screw.
Finally, solder the two transformers UT1 / UT2 and the BURSON
operational amplifier. Note the orientation of the BURSON
amplifier (the kangaroo emblem must face to the front).
Now connect the motherboard board to the power supply board.
Make sure that the 10-pin. header for the power supply will
proper flush in the socket strip. Then fix the motherboard with
the two M3 x 10 spacers. Now fit the cover PCB, fix it with the
two remaining Torx M3 x 4 screws and slide this mounted
module into the U-profile as shown in the picture.
Only remove the protective film from this side
Pick up the green intermediate frame and only
remove now the protective film from the rear
side (see picture). Flip the intermediate frame
(you will now see the front side with protective foil) and fit the engraved front panel after
removing its protective foil onto it. Pay attention to the different position of the recesses; there
are offset to the "down side". Place the frames on the U-profile and secure with four Torx M3
x 10 screws.
