BYOC Li'l Pony User manual

1
Build Your Own Clone
Li’l Pony
Kit Instructions
Warranty:
BYOC, Inc. guarantees that your kit will be complete and that all parts and components
will arrive as described, functioning and free of defect. Soldering, clipping, cutting,
stripping, or using any of the components in any way voids this guarantee. BYOC, Inc.
guarantees that the instructions for your kit will be free of any majors errors that would
cause you to permanently damage any components in your kit, but does not guarantee
that the instructions will be free of typos or minor errors. BYOC, Inc. does not warranty
the completed pedal as a whole functioning unit, nor do we warranty any of the
individual parts once they have been used. If you have a component that is used, but feel
it was defective prior to you using it, we reserve the right to determine whether or not the
component was faulty upon arrival. Please direct all warranty issues to:
[email protected] This would include any missing parts issues.
Return:
BYOC, Inc. accepts returns and exchanges on all products for any reason, as long as they
are unused. We do not accept partial kit returns. Returns and exchanges are for the full
purchase price less the cost of shipping and/or any promotional pricing. Return shipping
is the customer’s responsibility. This responsibility not only includes the cost of
shipping, but accountability of deliver as well. Please contact
[email protected] to receive a return authorization before mailing.
Tech Support:
BYOC, Inc. makes no promises or guarantees that you will successfully complete your
kit in a satisfactory manor. Nor does BYOC, Inc. promise or guarantee that you will

2
receive any technical support. Purchasing a product from BYOC, Inc. does not entitle
you to any amount of technical support. BYOC, Inc. does not promise or guarantee that
any technical support you may receive will be able to resolve any or all issues you may
be experiencing.
That being said, we will do our best to help you as much as we can. Our philosophy at
BYOC is that we will help you only as much as you are willing to help yourself. We
have a wonderful and friendly DIY discussion forum with an entire section devoted to the
technical support and modifications of BYOC kits.
www.byocelectronics.com/board
When posting a tech support thread on the BYOC forum, please post it in the correct
lounge, and please title your thread appropriately. If everyone titles their threads
“HELP!” then it makes it impossible for the people who are helping you to keep track of
your progress. A very brief description of your specific problem will do. It will also
make it easier to see if someone else is having or has had the same problem as you. The
question you are about to ask may already be answered. Here is a list of things that you
should include in the body of your tech support thread:
1. A detailed explanation of what the problem is. (more than, “It doesn’t work, help”)
2. Pic of the topside of your PCB.
3. Pic of the underside of your PCB.
4. Pic that clearly shows your footswitch/jack wiring and the wires going to the PCB
5. A pic that clearly shows your wiring going from the PCB to the pots and any other
switches(only if your kit has non-PC mounted pots and switches)
6. Is bypass working?
7. Does the LED come on?
8. If you answered yes to 6 and 7, what does the pedal do when it is in the "on" position?
9. Battery or adapter (if battery, is it good? If adapter, what type?)
Also, please only post photos that are in focus.
Copyrights:
All material in this document is copyrighted 2019 by BYOC, Inc.

3
Li’l Pony Kit Instruction Index
Parts Checklist----------------------------------------------page 4 -5
Populating the Circuit Board----------------------------page 7-14
Enclosure Assembly---------------------------------------page 15-19
Wiring--------------------------------------------------------page 20-23
Operation Overview---------------------------------------page 24
Schematic----------------------------------------------------page 25
PCB Map----------------------------------------------------page 26

4
Parts Checklist for the Li’l Pony Kit
Resistors: Metal Film Carbon Comp
1 - 560R/ 561 (Green/Blue/Black/Black/Brown) | (Green/Blue/Brown/Gold)
2 - 1k / 102 (Brown/Black/Black/Brown/Brown) | (Brown/Black/Red/Gold)
2 - 1k5/ 152 (Brown/Green/Black/Brown/Brown) | (Brown/Green/Red/Gold)
1 - 1k8 / 182 (Brown/Gray/Black/Brown/Brown) | (Brown/Gray/Red/Gold)
1 - 2k/ 202 (Red/Black//Black/Brown/Brown) | (Red/Black/Red/Gold)
2 - 4k7/ 472 (Yellow/Purple/Black/Brown/Brown) | (Yellow/Purple/Red/Gold)
1 - 5k1/ 512 (Green/Brown/Black/Brown/Brown) | (Green/Brown/Red/Gold)
2 - 10k/ 103 (Brown/Black/Black/Red/Brown) | (Brown/Black/Orange/Gold)
1 - 12k / 123 (Brown/Red/Black/Red/Brown) | (Brown/Red/Orange/Gold)
2 - 15k / 153 (Brown/Green/Black/Red/Brown) | (Brown/Green/Orange/Gold)
1 - 22k/ 223 (Red/Red/Black/Red/Brown) | (Red/Red/Orange/Gold)
1 - 27k/ 273 (Red/Purple/Black/Red/Brown) | (Red/Purple/Orange/Gold)
1 - 47k/ 473 (Yellow/Purple/Black/Red/Brown) | (Yellow/Purple/Orange/Gold)
2 - 100k/ 104 (Brown/Black/Black/Orange/Brown) | (Brown/Black/Yellow/Gold)
1 - 390k/ 394 (Orange/White/Black/Orange/Brown) | (Orange/White/Yellow/Gold)
1 - 422k/ 424 (Yellow/Red/Red/Orange/Brown)
2 - 1M/ 105 (Brown/Black/Black/Yellow/Brown) | (Brown/Black/Green/Gold
Visit www.byocelectronics.com/resistorcodes.pdf for more information on how to
differentiate resistors.
Capacitors:
1 - 390pf Ceramic Disc (may say “391” on the body)
1 - 820pf Ceramic Disc (may say “821” on the body)
1 - 2n2/.0022uf film cap (may say “222” on the body)
1 - 3n9/.0039uf film cap (may say “392” on the body)
1 - 27n/.027uf film cap (may say “273” on the body)
2 - 68n/.068uf film cap (may say “683” on the body)
1 - 82n/.082uf film cap (may say “823” on the body)
2 - 100n/.1uf film cap (may say “104” on the body)
1 - 390n/.39uf film cap (may say “394” on the body)
5 - 1uf Aluminum Electrolytic
1 - 4u7 Aluminum Electrolytic
1 - 47uf Aluminum Electrolytic
Visit www.byocelectronics.com/capcodes.pdf for more info on how to differentiate
capacitors.
Diodes:
2 - Germanium Diodes (clear glass body with black, blue, red, or green stripe)

5
IC's:
2 - TL072
1 - Charge Pump –MAX1044 or 7660SCPA or LT1054
Potentiometers: SNAP OFF THE SMALL TABS ON THE TOP OF THE POTS OFF
WITH A PAIR OF NEEDLE NOSE PLIERS OR SNIP THEM OFF WITH WIRE
CUTTERS.
2 - B10k (TONE, VOL)
1 - B100k Dual Gang (DRIVE)
Hardware:
1 - predrilled enclosure w/ 4 screws (optional)
1 - Li’l Pony Overdrive circuit board
1 - Li’l Pony Secondary Board
1 - 3pdt footswitch
3 - knobs (optional)
1 - AC adaptor jack
2 - Enclosed ¼” Jacks
1 - red LED (optional)
4 - rubber bumpers
2 - lock washers (for in and out jacks)
hook-up wire

6
Your build should look similar to this when you’re finished.

7
Populating the Circuit Board
Step 1: Add all the resistors. Resistors are not polarized and can be inserted
in either direction. The resistor highlighted in yellow is 422k.

8
Step 2: Add the diodes. Be sure to match the end of the diodes with the
stripe to the layout on the PCB. The striped end should go in the square
solder pad. If your diodes have one gray stripe and one white stripe, place
the gray stripe in the square hole. If your diodes have one white dot, that side
will go into the square hole. Since these are clipping diodes, the
orientation isn’t very critical. The important part is that the same side
goes into the square hole of both diodes. So if one diode has the dot, or
gray stripe, or black stripe going into the square hole, the other one has
to be oriented the same way.

9
Step 3: Add the ICs. Orient them so that the notch or ‘U-shaped’ indentation
on the IC matches the notch on the screenprint. If your ICs don’t have a
notch, they will have a dot. This will indicate pin 1 and goes in the square
hole.

10
Step 4: Add the film and ceramic disc capacitors. These are non-polarized
and can go in either direction. The ceramic disc capacitors are highlighted
in yellow. Depending on the height of your ceramic disc capacitors, you
may need to lay them on their side.

11
Step 5: Add the electrolytic capacitors. These are polarized meaning they
have a positive and negative side. The positive side will have a longer lead
and goes in the square hole. The negative side will have a stripe running
along the length of the capacitor body. Lay the 47uF electrolytic on its side
along the screenprint.

12
This is what your main board will look like at this point.

13
Back of main board.
Notice the short trim of the leads, and no shorts between any of the eyelets.

14
Step 6: Add the Capacitor, resistor, and dual gang potentiometer to the Li’l
Pony Secondary Board and solder them. The capacitor and resistor are not
polarized and can be installed in any orientation. The potentiometer will
have to be installed in a specific way as outlined on the board itself. Make
sure the shaft of the potentiometer is facing along the arrow on the board.
MAKE SURE YOU CUT THE TAB OFF THE POT
Potentiometer orientation. This is important.

15
Enclosure Hardware
Assembly
Step 1: Mount the DC adapter jack.
Note: Install the AC jack with the tabs vertical as shown in the images.
The orientation is important so that the tabs don’t contact the
potentiometers.

16
Step 2: Mount the potentiometers. You will mount the top pots with the
solder lugs facing away from the DC Jack. Cut (6) 3 inch pieces of wire and
solder them to the potentiometer board. Mount the lower pot and PCB
assembly with the board facing the DC jack as shown below.

17
Step 3: Mount the Audio Jacks. You want to orient them so that the SLEEVE
terminals (beveled corner of the jack) are facing away from each other. If
looking at the inside of the enclosure, the INPUT jack will have its sleeve
terminal facing towards the AC jack. The OUTPUT jack will have its sleeve
terminal facing towards the footswitch hole. The green arrows are pointing
at the sleeves.

18
Step 4: Remove both nuts from the footswitch and mount the footswitch.
Orient the footswitch so that the flat sides of the solder lugs are like the
diagram below.
NOTE: There are no actual number markings on the footswitch. There are
two correct ways you can orient the footswitch. They are both 180 degrees
of each other. Either way is fine. It does not matter as long as the flat sides
of the solder lugs are running horizontal, not vertical.

19
FOOT SWITCH SOLDER LUG DESIGNATIONS

20
Wiring
Important note: The longer tab will be your (+) connection.