Download
Share
Print this page
  1. Manuals
  2. Brands
  3. StewMac Manuals
  4. Music Pedal
  5. SUN FUZZ
  6. Instruction manual

StewMac SUN FUZZ Instruction Manual

Upgraded fuzzy-faced classic
Hide thumbs

Advertisement

Quick Links

Download this manual
SUN FUZZ
UPGRADED FUZZY-FACED CLASSIC
INSTRUCTION GUIDE
1

Advertisement

loading
Need help?

Need help?

Do you have a question about the SUN FUZZ and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for StewMac SUN FUZZ

Summary of Contents for StewMac SUN FUZZ

  • Page 1 SUN FUZZ UPGRADED FUZZY-FACED CLASSIC INSTRUCTION GUIDE...
  • Page 2 Fuzz Face around 1969 as a replacement for the finicky Germanium components. In addition to the standard Volume and Fuzz controls, the Sun Fuzz also features a tone control to further dial in the desired tone. The SunFace is still being made by Analogman but is subject to long lead times and high resale prices. Currently listing on the used market at around $500 as of 1/22.

  • Page 3: Tools And Supplies

    Not pictured: #1 Phillips screwdriver, TOOLS AND SUPPLIES and supplies to paint your pedal, clear (REQUIRED OR RECOMMENDED) silicone adhesive, spray finish. Soldering Iron #0502 Solder Wick #0504 PC Board Holder #0500 Power: Model 12252 requires a Solder #0505 standard 9V DC center-negative power supply (not included) and consumes less than 100mA.
  • Page 4 TOOLS AND SUPPLIES (HELPFUL) Magnifying glass or OptiVISOR #1685 Multimeter PM16B #3607 Our Pedal Building Tool Set #2318 is the perfect companion for new pedal builders who do not already have a lot of tools and supplies. Soldering Aids #0521...

  • Page 5: Parts List

    We know you are excited to get started building. PARTS LIST Note: While electrical That said, one of the keys to a successful build, is properties remain the same, taking the time to get to know all of your parts. Sort all of your pedal’s the appearance of parts may vary parts and check off according to the parts lists that follow.

  • Page 6: Parts List (Cont)

    PARTS LIST (CONT) 2.1mm DC power connector (1) 5K trim pot (1) #7468 #100738 B1K linear taper pot (1) 50K trim pot (1) #7451 #100739 BC-108 Transistor (2) #101123 B5K linear taper pot (1) #7452 30" of 22 guage lead wire (1) #101978 A250 audio taper pot (1) #7531...
  • Page 7 PARTS LIST (CONT) Pre-drilled enclosure (1) 1/4" mono jack (2) #4652 Sticker sheet (1) Control knobs (3) #7501 Circuit Board [PCB] (1) IN GND SW OUT Breakout Board (1)
  • Page 8 (or custom decals that you can create on your own). Doing this pre-build is not only fun, but it’s much easier than disassembling the pedal to paint it once you put it together. Don’t PAINTING forget to order quality primer and lacquers from stewmac.com. YOUR PEDAL HOUSING 5.
  • Page 9 UNDERSTANDING ELECTRONIC Band 1 Band 2 Band 3 Multiplier Tolerance COMPONENTS BLACK BROWN +/- 1% A number of different components are used to make an +/- 2% ORANGE 1,000 effects pedal. Here’s an overview of what they do.. YELLOW 10,000 GREEN 100,000 +/- 0.5%...
  • Page 10 CAPACITORS The two main uses of capacitors are to store electricity Resistors and capacitors may also be referred to with and to block the flow of DC current. shorthand notation on the printed circuit board when there is a decimal in the value. For example, the place Capacitor values are typically printed on the on the board for the 4.7K resistor will read 4K7 and the component.
  • Page 11 TRANSISTORS DIODES Transistors are used Diodes are used where you want electricity to flow in to amplify electrical only one direction, such as power rectification, and PT239 signals. They have also to limit how much current can flow, to create echo a a square tab on “clipping”...
  • Page 12 Audio taper is used because our ears don’t hear POTENTIOMETER changes in volume in a linear fashion as you might A potentiometer, or pot, is a variable expect. As the volume increases, a greater change resistor. This means as the knob shaft in signal or sound-pressure is required to perceive a is rotated, the DC resistance smooth transition.
  • Page 13 SOLDERING The solder joints you’ll make on the circuit boards Here’s a few more are very small, and too much heat can damage the soldering tips that board. The idea is to make joints quickly, without scorching the holes. might be helpful: •...
  • Page 14 Insert the diode leads through the component side (the side with the component’s info silkscreened in white). In many cases, components must be inserted in a specific direction due to polarity, so follow the graphics carefully. For example, diodes are polarized, so they INSTALL must be installed in the correct orientation.
  • Page 15 Next, we’re going to add some resisitors to our PCB. Like in the previous step, you’ll find an outline of each resistor and its value printed in their proper location on the PCB. Resistors are not polarized, so it doesn’t matter which lead goes in which hole. Match resistors to the INSTALL 5 values on the PCB, a few at a time, and solder in place.
  • Page 16 The three types of capacitors shown below are polarized and have to be installed in the correct orientation. Note the stripe running the length of each cap; this identifies the negative (minus) lead. On the circuit board, the circle for this cap’s location has a round INSTALL 3 through hole on one side, and a square through hole on the other: insert the capacitors POLARIZED...
  • Page 17 The remaining capacitor below is not polarized. However, best practice is to W IM A solder this cap in place with text facing 0 ,0 1 INSTALL 1 the bottom of the PCB. 1 0 0 - CAPACITOR 10nF capacitor (8) #7331...
  • Page 18 The internal trim pots featured on the Sun Fuzz allow the user the fine tune the overall “feel” the pedal will have when engaged. The Clean trim pot adjusts the amount of fuzz in the signal. The Bias trim pot adjusts the amount of voltage being routed to the transistors.
  • Page 19 PCB. Insert the stripped ends of the wires into the holes StewMac’s PCB Holder (#0500) is perfect for soldering tiny on the component side of the PCB and solder them parts and wires. With two free hands and the ability to on the back.
  • Page 20 503 1E Now we’re going to attach the breakout board to the PCB, as well as attach the wires to the breakout board that will connect SOLDER BREAKOUT to the pots. Have a small piece of BOARD TO masking tape on hand. THE PCB IN GND SW OUT Align the PCB and breakout board component side...
  • Page 21 Locate the three pots. If any pot has an index FUZZ (B1K) VOLUME pin protruding from it, (A250K) break it off with a pair TONE of needle nose pliers. (B5K) This will allow the pot to mount flush in the housing. Before mounting the tone pot to the circuit board, place one section of the included double foam adhesive tape squares on the...
  • Page 22 SOLDER POTS WD 10-2 TO PCB Temporarily attaching the pots and footswitch to the pedal housing will help to keep things steady for soldering them to the PCB. Lay the PCB/breakout board component side up over the pots. The shaft of the foot switch will help to support the PCB.
  • Page 23 Exactly like we did is step 10, we’re going to use our housing to help with attaching the footswitch. ATTACH THE FOOTSWITCH TO THE Insert the threaded shaft of the BREAKOUT footswitch into the OUTSIDE of BOARD the housing and reattach the nut and washer in the INSIDE.
  • Page 24 Like some of the caps and diodes, the LED is polarized and has to be installed in a specific direction. The negative INSTALL LED lead of the diode has a flat edge and is shorter than the positive.  INDICATOR LIGHT The LED mounting bezel consists of two main parts: A ring that the LED fits into, and a plastic plug that goes over the LED from the back side to keep it in place.
  • Page 25 Remove the nuts and washers again from the pots and INSTALL footswitch and lay CIRCUIT the pedal housing BOARD face down. With the component side of the PCB facing up, carefully insert the shafts of the pots and footswitch into their holes. Reattach the washers and nuts using a 10mm wrench for the pots, and 14mm wrench for the switch.
  • Page 26 WD 14 INSTALL THE DC JACK Insert the DC jack into the top of the housing making sure the longer of the two lugs is on the left. WD 14 Using a 14mm wrench or needle nose pliers and 14mm nut, secure jack into housing just enough to allow the jack to rotate.
  • Page 27 Model 12252 comes with two mono jacks. One will be your input jack and the other your SLEEVE output jack. Insert the jack into INSTALL THE INPUT JACK the left side of the housing with the tip connection facing up, as shown in the diagram.
  • Page 28 Insert the output jack into the right side of the housing with the tip facing down, as shown SLEEVE INSTALL THE in the diagram. Add the washer OUTPUT JACK and thread the nut on to the shaft enough so that the pot can rotate freely.
  • Page 29 D SF COMPLETED VIEW With the output jack secured, this is what your pedal should look like. Congrats, on a job well done! Now, simply attach the back of the pedal, pop on the knobs, plug this thing in and bend some tone! IN GND SW OUT...
  • Page 30 FINE TUNING TRIM POTS CLEAN Clean control adjusts the intensity of the fuzz sound from light to heavy. Trim Pots Adjustments While playing your instrument with the main controls at noon on the dial, turn the bias until you hear sound. If the bias control is turned completely in one direction the transistors will not turn on and NO sound will be produced.
  • Page 31 HERE’S HOW THE CONTROLS WORK POWER Use a standard 9 volt DC power supply with a 2.1mm negative-center barrel (not included). We always recommend pedal-specific, transformer-isolated, wall-wart power supplies or supplies with separate isolated outputs. Some switching supplies, as well as some linear (non-switching) pedal power supplies can be noisy.

  • Page 32: Technical Support

    TECHNICAL SUPPORT: If you have any questions before, during, or after your build, please reach out to our Tech Support Team by email at service@stewmac.com or by phone M-F 9:00AM-5:00PM at 1-800-848-2273. stewmac.com ©2022 StewMac. All rights reserved. • #12252 Updated September, 2022...