Ceriatone Centura Series User manual
Introduction
Dear Customer,
Thank you for purchasing the Ceriatone Centura™DIY kit and
welcome to our community!
This assembly manual will guide you through the build process with
clear and easy to follow instructions. Ceriatone guarantees that
your kit will be complete and that all parts and components will
arrive as described, functioning and free of defect. Needless to say
- you will still need a basic tooling, such as approximately 30W
soldering iron (don't go to crazy with power - we won't solder high
flow water pipes today), quality 60/40 1 mm solder, and solder
pump, wire clippers, and strippers, and digital multimeter for
troubleshooting. Remember to keep your soldering iron and
workspace clean. Wear protective equipment such as safety
goggles, never solder in shorts or open footwear and keep your
room well ventilated.
Even though we tried our best to keep this document easy to follow,
don't hesitate to get in touch with us for additional help if needed,
We will do our best to help you as much as humanly possible.
nik@ceriatone.com
You could also like to meet other Ceriatone users at our community
Ceriatone Facebook Group for news and social chats:
www.facebook.com/groups/ceriatone
Please don't forget to visit our website at www.ceriatone.com for
more information about other Ceriatone products
Happy building and playing!
Thanks - Team Ceriatone
Schematic Diagram
(zoom-in for better view)
Circuit Diagrams
(zoom-in for better view)
Printed Circuit Board (PCB) supplied to you contains part values only with no
component names such as R1, R2, C1, C2, etc., for ease of use. PCB layout
presented below shows such component numbers for easy schematic - to -
layout reference for troubleshooting reference (zoom-in for better view).
Below you can see the same board layout but with component values as on
the PCB you have in your kit.
a) Standard Circuit
For the Centura kit, we offer 2 circuits, Standard, and Early. The Standard is
based on a confirmed great sounding unit, while the Early one is based on
one from our own personal collection
The differences to the Early circuit are the following:
i) R25, R26, R27 (100k, 68k, 68k) are absent
ii) C15, C2 are 1uf 50V electrolytics instead of 4.7ufs.
iii) R9 is 680 instead of 1k.
iv)R11 is absent (22k, mids sweetening resistor)
v) C11 is 27n, instead of 68n.
b)Early Circuit
The kit consists of components to make both versions. We invite you to try it
both ways, to see which you prefer.
The Early Circuit seems to be slightly brighter, and gainier. However, the
difference is slight.
Note also the missing R25,R26,R27 makes the switching a bit poppy, thus
you might want to have these still, and wire per Later Circuit, even if you opt
for Early Circuit for the other differences (ie, the wire from stomp switch to Tip
of Out Jack).
Bill of Materials and Parts Check List
RESISTORS
CAPACITORS
IC
560R x 2
R4, R25
390pF x 1
C8
TL072CP
IC1
1k x 2
R9, R13
820pF x 1
C13
TL072CP
IC2
1k5 x 2
R7, R8 (MF)
2n2 x 1
C11
ICL7660SC
PAZ
IC3
1k8 x 1
R21
3n9 x 1
C14
POTS
2k
R10 (MF)
27nF x 1
C12
Gain
10kB
3k9 x 1
R14 (or 4K7)
68nF x 2
C4, C5
Tone
10kB
4k7 x 1
R23
82nF x 1
C7
Volume
100kB stereo
5k1 x 1
R5 (MF)
100nF x 2
C1, C3
DIODES
10k x 2
R1, R6
390nF x 1
C6
1N4001
D5, D6
12k x 1
R18 (MF)
1uF x 7
C9, C10, C16,
C19, C20, C21,
C22
1N4742
D4
15k x 2
R11, R19
4u7 x 2
C2, C15
Germanium
D1, D2
22k x 1
R15
47uF x 2
C17, C18
5mm LED
D3
27k x 3
R17, R29, R30
Ceriatone Centura™
OTHER
47k x 2
R16 (or R14)
Printed Circuit Board
68k x 2
R26, R27
Enclosure
100k x 4
R3, R22, R24, R28
Input Jack - stereo type
392k x 1
R20 (MF)
Output Jack - mono type
422k x 1
R12 (MF)
Power Socket
1M x 1
R2
Battery Clip
Wiring Diagram (Standard)
Wiring Diagram (Early)
Table of contents
