Lithium Grim Carnivale Instruction Manual

Carnivale
Building instructions
v1.1

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
2
Table of contents
PCB layout ............................................................................................................................................... 3
Components ............................................................................................................................................ 3
Jubilee version..................................................................................................................................... 3
Plexi version......................................................................................................................................... 4
Build sequence ........................................................................................................................................ 5
Off board wiring ...................................................................................................................................... 6
Potentiometers non PCB mounted ..................................................................................................... 6
Potentiometers PCB mounted ............................................................................................................ 6
Wiring .................................................................................................................................................. 7
Drill instructions .................................................................................................................................. 7
Troubleshooting ...................................................................................................................................... 8
Schematic ................................................................................................................................................ 9
Read this entire manual thoroughly before you start building the effect!
Last update: 26-04-2018

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
3
PCB layout
Dimensions: 49,4 mm x 35 mm
1.94 inch x 1.38 inch
Components
Jubilee version
Name
Value
Comment
Name
Value
Comment
C1
390p
MLCC
R1
2M2
1% metalfilm
C2
4n7
MKT/WIMA/SMF
R2
4k7
1% metalfilm
C3
47u
Electrolytic
R3
47R
1% metalfilm
C4
47u
Electrolytic
R4
4k7
1% metalfilm
C5
22n
MKT/WIMA/SMF
R5
4k7
1% metalfilm
C6
100n
MKT/WIMA/SMF
R6
1k8
1% metalfilm
C7
100u
Electrolytic
R7
330R
1% metalfilm
C8
100n
MKT/WIMA/SMF
R8
4k7
1% metalfilm
C9
10u
Electrolytic
R9
390R
1% metalfilm
D1
1N5817
or BAT46
R10
NC
NC
IC1
JRC386D
R11
10R
1% metalfilm
P1
A250k
Drive
P1a
NC
Short pad 2 and 3
P2
B50k
Tone
P3
A100k
Volume

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
4
Plexi version
Name
Value
Comment
Name
Value
Comment
C1
370p
MLCC
R1
2M2
1% metalfilm
C2
4n7
MKT/WIMA/SMF
R2
4k7
1% metalfilm
C3
47u
Electrolytic
R3
10R
1% metalfilm
C4
47u
Electrolytic
R4
4k7
1% metalfilm
C5
4n7
MKT/WIMA/SMF
R5
4k7
1% metalfilm
C6
100n
MKT/WIMA/SMF
R6
1k74
1% metalfilm
C7
100u
Electrolytic
R7
330R
1% metalfilm
C8
100n
MKT/WIMA/SMF
R8
4k7
1% metalfilm
C9
10u
Electrolytic
R9
390R
1% metalfilm
D1
1N5817
or BAT46
R10
470R
1% metalfilm
IC1
JRC386D
R11
10R
1% metalfilm
P1
NC
Short pad 2 and 3
P1a
B1k
Gain
P2
B5k
Tone
P3
A100k
Volume
Try to keep the electrolytic capacitors as small/low as possible to be able to fit a 1590A! The effect
operates on only 9V DC so do not get high rated electrolytic caps as they tend to be big.
The potentiometers P1-P3 can be PCB mounted. If you prefer another layout of the pots, you can use
the old fashioned way and wire non PCB mounted jacks to the corresponding holes (see off board
wiring for more details). P1a can only be wired the old fashioned way and is not PCB mounted.
Note: R8, R9 and C9 are optional an can be left out in any version. It uses the LED anti-pop method as
stated on AMZ Fx. If you leave it out and only want to use the LED+ pad then you should short R8 and
R9 like this:

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
5
Build sequence
Before you start, you must decide which version you are going to build!
Soldering this board can be very complicated for some people since the solder pads are close
together. Use a magnifying glass to make the job easier.
The trick to soldering a PCB is to work from small to big components. My building sequence
suggestions in this section are based on the parts I used myself. Sometimes some components are
smaller (or bigger) so always use your own common sense and change the order accordingly. Usually
capacitors can differ a lot in size depending on their rating and value.
Note: Do not blow on your solder in an attempt to cool it down. That can result in a bad join that
might corrode! Also take extra care not to short components.
Start by soldering the resistors and then the diode. Next, solder the IC socket for IC1 and then the
MLCC capacitor. Finish by soldering the MKT/SMF/Wima capacitors and then the electrolytic
capacitors. See the off board wiring section for details about the potentiometers and how to wire
them.
You are almost ready to rock, well… not really. The difficult part starts now.
Besides the components mentioned in the components table, you will need:
1 mono input jack and 1 stereo input jack.
3PDT footswitch (9 pins)
2,1mm DC jack (isolated) not recommended in positive ground setup.
22 gage stranded hook-up wire.
OPTIONAL LED holder and LED (3mm or 5mm depending on your taste).
Hammond 1590A case (or similar) in your favorite color. If you need more room you could
consider using a Hammond 1590B.

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
6
Off board wiring
As mentioned before, you can either mount the potentiometers directly to the PCB with special
potentiometers or use the traditional solder lug potentiometers.
Potentiometers non PCB mounted
In the pictures below you see the correct pin numbering of the pots.
Solder the wires accordingly and it is always a good idea to twist the wires together to create a sort
of extra shielding against external noise.
You can break of the pin I marked with the yellow circle with a small pair of pliers.
Potentiometers PCB mounted
I would advise that you first drill the 3 holes for the potentiometers in the enclosure. Now insert the
pots in the enclosure, tighten the bolts and then click the PCB on the pots from the bottom (non
component) side like this:
You can best solder the pots while in the enclosure. When you are done, you can measure where to
put the rest of the components (footswitch, DC jack, in-/output jacks, LED) and determine where to
drill the holes.
NB make sure the underside of the pots do not touch the PCB else there might be a short circuit. Use
special plastic Alpha caps or some tape to isolate the pots from the PCB.
3 2 1
1 2 3
3 2 1
P1 Drive
P2 Tone
P3 Volume
P1a Gain
1 2 3

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
7
Wiring
Cathode (short leg)
Anode (long leg)
Status
Ring
Sleeve
Tip
Input
Tip
Sleeve
Output
R led
Note that R led is a 4k7 resistors. You can change these value depending on the type of LED you use
but 4k7 is safe enough for almost all LEDs @+9V.
The sleeve of the output jack is not connected on purpose. It does however require a good contact
between the output jack and enclosure to work. If this is not possible then connect the sleeve of the
output jack to the sleeve of the input jack.
Drill instructions
17,8mm
Volume Drive/Gain
Tone
17,8mm 17,8mm
Holes for the potentiometers should be 7mm.

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
8
Troubleshooting
All PCB’s have been 100% factory e-tested and out of every batch I receive I build an effect to double
check, so there should not be a connection problem on the PCB itself.
The board is not working (at all), what now?
Check if your 9V is plugged in correctly (and/or soldered correctly on the board). Pay special
attention to the polarity.
Check that you oriented the capacitors, IC’s ,transistors and diodes the right way. SMF, MKT
and ceramic capacitors as well as resistors do not need to be oriented. A likely sign of
incorrect capacitors and/or orientation is when an effect is sputtering, rumbling or
“motorboating”.
Check if you used the correct values of the components. For resistors you can look here:
http://www.diyaudioandvideo.com/Electronics/Color/
Double and triple check your soldering! A loose or cold solder can be really bad for your
board.
Replace the IC and/or transistors, one might be defective. Before doing that first unplug the
9V and wait for 5 seconds.
Check that you have good/high grade components. A lot of Chinese sourced parts are fakes
(especially high end opamps, audio capacitors, vintage diodes and transistors) so be careful
that you source your parts from reliable suppliers.

Carnivale v1.1
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
9
Schematic