Burson DIGNA User manual

Assembly Manual DIGNA
Seite 1
Foreword
Dear audio friend,
Thankyouforpurchasingthisstate-of-the-artphonopreampDIYkit.Youhavepurchaseda
productthatcaptivatesasaDIYversionacomponent quality and choice of materials that is
unique in the market and many industrially manufactured high-end products should attract
warm theirselves.
However,thisalso means that youshouldnot"cobbletogether"this kit in recordtime.Takea
quieteveningandaboutfourhourstimetobuild.
Also,you should alreadyhave the necessaryequipment and knowledgeto be ableto build
suchahigh-quality DIYkitwithoutcomplications.Theresulting successwilldefinitelyreward
youforyour effort andstamina.
Theinstructionsassumeelectronicfundamentals,i.e.youalreadyknowthatICs,LEDsand
electrolytic capacitors are poled components and may not be soldered in reverse polarity.
Furthermore,theusage of a temperature-controlled solderingstationwith max. 1 mm wide
tipandcorrespondinglyfineelectronicsolderaswellasappropriatetools(multimeter,TX10
screwdriver,sidecutter,tweezers,magnifyingglass,etc.)areadvised.
Please follow the steps and tips and hints in this manual. These are all tried out and
tested and allow you a trouble-free setup.
Important Safety Instructions
During installation, commissioning and measurements and repair special care is required!
Assemblingofthecircuit is at yourownrisk.Thefunctionalitycan not be guaranteed,northe
suitabilityforcertainpurposes.Theuserhimselfhastocheckthisandisresponsibleforthis
suitability.Noliabilitycanbeacceptedfordamagesarisingduringorasaresultoftheassembly
oroperation,in particular for damages resulting from alackofelectronic skills.
Thephonopreamplifiermayonlybeoperatedinatouch-proofhousingindryindoorenviroment.
Operationwithoutorwithdefectivetubes is not permitted!
Thepersonwhohascompletedakitorhasmadeanassemblyreadybyextensionorencolure
installation, is according to VDE 0869 a manufacturer and therefore provided to supply all
documentswhensellingthedeviceandalsogivehisnameandaddress.Deviceswhich are
assembled from kits themselves are to be considered as an industrial product in terms of
safety.
And now, my friend - fire your soldering station now ...
Power Supply Board
We'llstartbyassemblingandcheckingthepowersupplyboardfirst.The SMD components
are already assembled and soldered on the solder side, so that our work is limited to the
assemblyofthefewthroughhole components and the two M3 x 13spacers,whicharefixed
fromthesolderside with twoTorx screws M3x4.
Tip: Please solder only one pin of the 10-pin header BL1 first and align it exactly vertically.
Also, press the S3 switch all the way down to the PCB before soldering it.Also keep care
aboutthecorrectpolarityof the 1000µF electrolytic capacitor.

Assembly Manual DIGNA
Seite 2
Now check how the power supply
Connectthe moduletothesupplied 12Vpowersupply
and switch on. Now use a multimeter to measure the
voltageatthetestpoints against TP GND:
A tolerance of 5% at the 12 V measuring points and
3% at the 64 V measuring point is in order.
If the voltages differ significantly more strongly, then
pleasecheckthe assembly-alsoSMD -foranyerrors
orcoldsolderjoints.
Donotcontinueaslongas the power supply module does not work properly!
Nowdisconnectthe12Vpowersupply and set aside the power supply module.
We will build an assembly aid for the mainboard
Pick up the black frame for the rear and the engraved silvery rear frame and peel off the
protectivefilms.Carefullyfit these two parts preciselytoeachother-notethedrawing below
andthatthe rectangularcutoutinthe blackframehasagreater distanceatthetop, butdonot
yetpressbothparts firmly.Nowtaketheblackaluminiumprofile(anaturalcoloredanodized
profileisusedinthismanualforthephotos)andthefourM3x10Torxscrews.Putthecombined
rearframeson the profileandscrewittight.It might be thattheU-profileisa little bit "bent"by
thecastingprocessand you get it "in shape"bytightenthesrews.
Nextfitonthebottomofthealuminiumprofilethe fourblackadhesivefeettothecornersofthe
largeflatsurface. Now slide the mainboard intothesecondgroove from above as shown in
thepicture.
We will start by assembling the CFM55 resistors. As you've already noticed, these brown
audio-graderesistorsdonothaveacolorcode,buttheresistancevalueisprinted directly in
plaintext.
However, this requires that the resistors must be bent in the way before fitting, that
their value is still readable from upside.
Otherwise,alater(hopefullynotnecessary)troubleshooting is almost impossible!
Start with the most common values, here with the 330R resistors. For non-taped (loose)
resistors,cut2cmfromthewires beforeassembling.Theresistancevalues whichareprinted
ontheboardshouldhelp you to find them.
Wheninsertedinto the profile, you will not findR11and R31 (49.9keach)becausethey are
hiddenby the profile. Therefore, put these tworesistors aside. Next, when assembly of the
resistorsisfinsihed,fitthetwo tube sockets by first soldering the two outer pads (pins1and
9)from componentssideforfixation.Thenpullthe moduleoutof theprofileandassemblethe
two remaining resistors R11 / R31 at the top right edge, the red WIMAcapacitors, the two
1µFceramiccapacitors, the four 220µF polymerelectrolytic capacitors (please keep agap
of0.5mm tothePCB)andthe two jumpersZ1-Y1orZ2-Y2 if youusethesuppliedECC8100
tubes.
50p
R
100p
200p
MM
CAPACITANCE
50p DEFAULT + VALUE OF DIP-SWITCH SETTINGS
INPUT IMPEDANCE MM = 47k MC = VARIABLE ON FRONT
DIY PREAMP KIT CAREFULLY
DESIGNED AND ASSEMBLED
LIN GND RL OUT PWR
12V 1A
INPUT SETTINGS
MC
GD
FOR MM GD MUST BE set to ON
Do Not Open While Operational – No Servicing Parts Inside
IN GERMANY BY MR. NIXIE

Assembly Manual DIGNA
Seite 3
To better find the individual resistances on the PCB their
values are marked in different colors.
10 ohms
330 ohms
10 k
16.2 k
31.6 k
49.9 k
82.5 k
267 k
1 M

Assembly Manual DIGNA
Seite 4
Parts assembly on solder side and mounting into the aluminium frame
FlipthePCBsoyoucanseethesolderside.SolderfirstthefourRCAsockets-andfixthem
firstonthe shieldingstraps-nextassemble thegroundterminaland the two6and8 pole DIP
switchesS1and S2, payattentiontoa proper and even assembly.
Thenfitthethree10µF MUSE Electrolythic capacitors C19 / C39 / C21, whereby C21must
bethe80V type, followed by the two 33 nFWIMAcapacitorsC18/C38 and the two 220 nF
capacitors C17 / C37.
ThetwosmallslidersTR1and TR2 are assembled and next the potentiometer P1. Itisvery
important to ensure a clean right-angled seat. The spring tooth disc and the nut of the
potenziometersarenotneeded.
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),thenfit theseLEDsthroughthePCB holesinthemiddleof thtubesocketandsolder.
Ifyoudonotwanttousethetubelighting,besuretoshortthetwosolder padsfortheLEDwith
a piece of wire.
The wires of the six 5 mm flat head UV LEDs are also angled, but only very
closeto thecomponentbody; herealongerthumbnailcanservewell.Please
note that two LEDs are fitted from the component side and four from the
solderside.Itisrecommended to solder the LEDs from the sidefromwhich
theywerefittedonthePCB.
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
markingpointingexactlyafter12o'clock(ie"upwards"inthedirectionofthe
componentside).Nowfixtheknobwithitsgrub screw.
Finally,solderthetwotransformersUT1/UT2andtheBURSON
operational amplifier. Note the orientation of the BURSON
amplifier(thekangarooemblemmustfacetothefront).
Nowconnectthemotherboardboardtothepowersupplyboard.
Make sure that the 10-pin. header for the power supply will
properflushinthesocketstrip.Thenfixthemotherboardwith
thetwoM3 x 10 spacers. Now fit thecoverPCB,fix it with the
two remaining Torx M3 x 4 screws and slide this mounted
moduleintotheU-profileasshowninthe picture.
Onlyremovetheprotectivefilmfromthisside
Pickupthegreenintermediateframeandonly
remove now the protective film from the rear
side(seepicture). Flip the intermediateframe
(you will now see the front side with protective foil) and fit the engraved front panel after
removingitsprotectivefoilontoit.Pay attentiontothedifferent positionoftherecesses; there
areoffsettothe"downside".PlacetheframesontheU-profileandsecurewithfourTorxM3
x10screws.

Assembly Manual DIGNA
Seite 5
Nowunscrew thetwoTorxM3x4screwsfromthetopPCB again,pickupthe topsilverframe
andglueiton the topPCBafterpeelingofftheprotectivefoil.You willnoticethatitgetsalittle
bit"tight"whenplacedinattheareaaroundtheBURSONoperationalamplifier.Thisisintended
andservesasanadditionalsafeguardagainstaccidentalfalling out. However,withthehelp
ofafingernail(aroundtheBURSON),thecovercaneasilybepressedflush.
Afterre-screwingthetwoscrewsandplugginginthetubes,everythingisnowreadyforenjoying
yourvinyl music.Congratulations.
Anbieter • Vendor
Jürgen Grau • Mr.Nixie • Ortsstraße 13 • D-07429 Rohrbach / Thüringen • Germany
Mr[email protected] • http://www.Nixiekits.eu
Dieser DIY Phono Vorverstärker wurde in Deutschland entwickelt und zusammengestellt
This Phono preamplifier kit was carefully engineered and assembled in Germany

DIGNA Phono Tube Preamplifier Rev.10-17
Power Supply Board
SMT components preassembled and soldere
d
Pos. Qt
y
T
y
p
e
V
alue/Packa
g
eRe
f
Remarks
1 17 SS14L / SS16L Schottky Diode Sub SMA D1…D17
2 21 2u2 100V ceramic 1210 C24,C25,C41….C58,C61
3 1 15V 500mW Zener Diode MiniMelf ZD1
4 1 BCX 51 / 52 / 53 SOT-89 T4
5 1 BCX 54 / 55 / 56 SOT-89 T3
6 1 LM317M D-PAK IC3
7 1 MC78M12 D-PAK IC4
8 1 MC79M12 D-PAK IC5
9 3 300R MiniMelf R55,R56,R57
10 2 15k MiniMelf R51,R54
Power Supply Board and Main Board
Throu
g
h hole components
Pos. Qt
y
T
y
p
e
V
alue/Packa
g
eRe
f
Remarks
11 1 DC
j
ac
k
FC681465P BU6 5.5/2.1 or 2.5 mm
12 1 Female Heade
r
2 x 5-pol. BL1
13 1 Male Heade
r
2 x 5 pol. SL1
14 4 Cinch
j
acks shielded BU1…4
15 1 Dip-Switch 6-pol. MDP-06 S1
16 1 Dip-Switch 8-pol. MDP-08 S2
17 1 Ground Screw 13.42.322 BU6
18 2 Slider potentiomete
r
4k7 lin TR1,TR2 ALPS RD708
19 16 100pF FKP2 2,5% 100V RM 5,04 C10,C11A,C11B,C12,C13A,C13B,C 14A,C14B,C30,C31A,C31B,C32,C3
3A,C33B,C34A,C34B WIMA
20 1 220pF ceramic "200" 50V RM 2.54 C59
21 1 100nF ceramic "104" 50V RM 2.54 C60
22 1 1µF ceramic "105" rad. 5.08 mm C26
23 1 TS555CN 8-pol. DIP IC2
24 1 DIP-Socket 8-pol. DIP for IC2
25 4 4n7 FKP2 1% 50V RM 5.04 C16,C20,C36,C40 WIMA
26 1 4n7 FKP2 2,5
%
50V RM 5,04 C29 WIMA
27 2 33nF FKP2 2,5
%
50V RM 5,04 C18,C38 WIMA
28 2 220nF Pol
y
ester capacito
r
100V RM 5,04 C17,C37
29 4 220µF Pol
y
mer capacito
r
16V 6,3 x 8 mm C15,C22,C23,C35 KEMET
30 2 1µF ceramic capacito
r
50V RM 5,04 C27,C28
31 2 10µF MUSE electrol
y
thic cap. > 63V C19,C39 NICHICON
32 1 10µF MUSE electrol
y
thic cap. 80V C21 NICHICON
33 2 LED oran
g
e diffus 3 mm LED1,LED2
34 6 UV-LED 405 nm Flat hat 120° 5 mm LED3…LED8
35 1 P9A2R100FISX1102M
L
2 x 1k +log P1 VISHAY
36 1 Power Switch ALPS SDDF S3
37 1 Knob for Power Switch red for S3
38 2 Noval socket 18 mm for PCB TU1,TU2 gold plated
39 1 Potentiometer Knob 20 mm dia for P1 MENTOR 5226191
40 2 Audio-Transforme
r
K+H 336.03 UT1,UT2 Haufe GmbH & Co. KG
41 1 Burson Audio V6D Vivi
d
with DIP Socket IC1
42 6 10R 1% CMF55 axial R12,R14,R29,R32,R34,R49 VISHAY / DALE
43 12 330R 1% CMF55 axial R15A,R15B,R16,R21,R22,R26,
R35A,R35B,R36,R41,R42,R46 VISHAY / DALE
44 2 2k0 1% 0207 axial R58,R59 YAEGO
45 8 10k 1% CMF55 axial R20,R23,R25A,R27,R40,R43,
R45A,R47 VISHAY / DALE
46 2 16k2 1% CMF55 axial R18B,R38B VISHAY / DALE
47 2 31k6 1% CMF55 axial R24A,R44A VISHAY / DALE
48 4 49k9 1% CMF55 axial R11,R24B,R31,R44B VISHAY / DALE
49 2 82k5 1% CMF55 axial R30,R50 VISHAY / DALE
50 6 267k 1% CMF55 axial R19,R25B,R28,R39, R45B,R48 VISHAY / DALE
51 4 1M 1% CMF55 axial R13,R18A,R33,R38A VISHAY / DALE
52 2 Dual Triode ECC8100 TU1,TU2
53 1 PCB Set 3 pcs.
Mechanics
54 2 Spacer A-I M3 x 13
55 2 Spacer I-I M3 x 10
56 4 Torx M3 x 4
57 8 Torx M3 x 10 self tapping
58 4 Bumper 8 x 2.8 mm black
59 1 Aluminium U frame GB 83 100 SA black
60 1 Top cover silvery 1.6 mm self adhesive
61 1 Front cover engraved silvery 1.6 mm self adhesive
62 1 Rear cover engraved silvery 1.6 mm self adhesive
63 1 Front mounting frame 3 mm LISA green
64 1 Rear mounting frame 3 mm black matt