Shattered Glass Audio Little Devil Manuale utente

Little Devil

Little DevilLittle Devil

Little Devil

form or by any means, electronic, mechanical, photocopying, recording, or other ise,

ithout prior ritten permission of Shattered Glass Audio.

DESCRIPTION ........................................................................................................................................... 4

PARTS CHECKLIST..................................................................................................................................... 4

RESISTORS..................................................................................................................................................... 4

CAPACITORS .................................................................................................................................................. 5

ICS.............................................................................................................................................................. 5

POTENTIOMETERS........................................................................................................................................... 5

JACKS ........................................................................................................................................................... 5

LED ............................................................................................................................................................. 5

SWITCHES ..................................................................................................................................................... 6

OTHER HARDWARE ......................................................................................................................................... 6

ASSEMBLY................................................................................................................................................ 6

SOLDERING.................................................................................................................................................... 6

DRILLING THE ENCLOSURE ................................................................................................................................ 9

PUTTING IT TOGETHER ................................................................................................................................... 10

Assembling the Enclosure Mounted DC jack (version 2 of the kit only) ..............................................

Finishing up ......................................................................................................................................... 2

OPERATION............................................................................................................................................ 13

SELECTION SWITCH ....................................................................................................................................... 13

GAIN......................................................................................................................................................... 13

TONE ........................................................................................................................................................ 14

VOLUME................................................................................................................................................... 14

PEDAL OUTPUT VOL. ................................................................................................................................ 14

PRECAUTIONS ........................................................................................................................................ 15

LOCATION ................................................................................................................................................... 15

POWER SUPPLY ............................................................................................................................................ 15

INTERFERENCE WITH OTHER ELECTRONIC DEVICES................................................................................................ 15

HANDLING................................................................................................................................................... 15

KEEPING FOREIGN MATTER OUT OF YOUR EQUIPMENT.......................................................................................... 15

Description

The Little Devil has no equal among portable, DC po ered, small amps. It features full

pre and po er amp sections. A ide range tone control lets you dial in the tone you

ant. With its chimey cleans, t o distinct flavors (smooth and gritty) of fat, gro ly,

overdrive, and a raunchy distortion hen cranked up, the Little Devil is suitable for a

ide range of genres. By simply turning the s itch, the Little Devil becomes an effects

pedal letting you take the sound you love to higher po er levels. Connect the Little

Devil to your favorite speakers or amp and experience the sonic richness that Little Devil

has to offer.

Connectors:

INPUT Jack, OUTPUT Jack, AC Adaptor Jack (DC 9V)

Po er Supply:

DC 9V: Dry Battery 9V type or a 9V, regulated, AC Adaptor

Controls:

GAIN, TONE, VOLUME, PEDAL OUTPUT VOL., OFF-AMP-PEDAL s itch

Amp output:

~0.75W into 8Ω load. Amp can drive speakers from 4Ω -16Ω.

Parts Checklist

Resistors

value Color code

R1 51 Green/Bro n/Black

R2 100k Bro n/Black/Yello

R3 51k Green/Bro n/Orange

R4 1M Bro n/Black/Green

R5 10M Bro n/Black/Blue

R6 2.7k Red/Purple/Red

R7 51k Green/Bro n/Orange

R8 2.2M Red/Red/Green

R9 10M Bro n/Black/Blue

R10 2.2k Red/Red/Red

R11 680 Blue/Gray/Bro n

R12 2.7k Red/Purple/Red

R13 10k Bro n/Black/Orange

R14 5.1k Green/Bro n/Red

R15 10 Bro n/Black/Black

R16 100 Bro n/Black/Bro n

R20 6.8k Blue/Gray/Red

Capacitors

Part Value (F)

C1 1000u

C2 470u

C3 47u

C4 22n 223

C5 22n 223

C6 10p 100

C7 22n 223

C8 10n 103

C9 22n 223

C10 47n 473

C11 22n 223

C12 4.7n 472

C13 3.3u

C14 47u

C15 47n 473

C16 220u

ICs

Part Value

IC1 CD4007

IC2 LM386

Note that CD4007 is a CMOS IC and can b d stroy d by l ctrostatic discharg .

Potentiometers

Part Value

MASTER A100k

PREAMPVOL A100k

SBOUTVOL A100k

TONE B100k

Jacks

Part Value

POWER 2.1mm DC Jack

INPUT ¼” Stereo Jack

OUT ¼” Mono Jack

LED

3mm blue LED

Switches

Part Value

S1 Rotary S itch

SW1 3PDT Foot S itch

Other Hardware

4 knobs ith a red cap

1 knob ith a silver top

Leaf Spring

9V Battery Snap

PCB

Assembly

Soldering

Little Devil is designed such that all components are soldered to the PCB.

The Follo ing are general soldering recommendations:

-Use a soldering iron ith temperature control.

-Do not spend more than 3 seconds hile soldering each leg of a transistor, a

resistor, a capacitor, an IC, or a diode.

-Use an ESD safe soldering iron ith temperature control hen soldering CMOS

ICs and MOSFETs.

-Use a heat sink hen soldering active components.

-Inspect all solder joints for completeness and cold solder.

-Ensure that components under potentiometers are fully inserted into the PCB.

-Ensure that 3PDT s itch, rotary s itch, DC jack, input jack, and output jack are

fully inserted into the PCB and that they vertical (i.e. at the right angle ith the

PCB).

The follo ing are general instructions on the order of soldering components to the PCB.

NB your kit may not contain all components listed belo . This does not mean that your

kit is incomplete.

Solder components in the follo ing order:

1. Sock ts (if you are using them) for ICs. Sockets are not supplied ith the kit. You

can purchase sockets from many online stores and they are also available at

Radio Shack.

2. Diod s – Make sure you orientate diodes such that the diode orientation

matches orientation on the PCB.

3. R sistors

4. ICs – If you are not using IC sockets, solder ICs to the PCB. Make sure that the IC

is orientated such that notch on the IC matches the notch on the PCB layout.

CMOS ICs, such as CD4007, can easily be damaged with electrostatic discharge.

To solder CMOS ICs use only an SD safe soldering iron. The regular soldering

iron is not ESD safe and can easily destroy a CMOS IC.

5. Transistors – Make sure to orientate transistors such that the flat part of the

transistor body lines up ith the flat side on the PCB. Transistors can be

damaged by prolonged exposure to heat. In addition to keeping your soldering

iron not overly hot and not spending more than 3 seconds on soldering each leg

of a transistor, e recommend that you use a heat sink clipped to a leg of the

transistor you are soldering. MOSF Ts can easily be damaged with electrostatic

discharge. To solder MOSF Ts use only an SD safe soldering iron. The regular

soldering iron is not ESD safe and can easily destroy a MOSFET.

6. C ramic Capacitors

7. Film Capacitors

8. L af Spring

9. PCB mount d DC jack

10. Input and Output Jacks

11. El ctrolytic Capacitors – Electrolytic capacitors are polarized and need to be

properly orientated on the PCB. Make sure that the positive lead of the capacitor

is inserted into the hole ith a small plus sign next to it.

12. Batt ry Snap – The red lead of the battery snap goes into the hole marked “+”,

hereas the black lead of the battery snap goes into the hole marked “-“ on the

PCB

13. Pot ntiom t rs – Before mounting potentiometers make sure you snap off the

tab on the side of each potentiometer. To be able to mount potentiometers onto

the PCB you may need to straighten and adjust legs of a potentiometer. Mount

each potentiometer such that it matches the outline on the PCB.

14. Rotary Switch – To be able to insert the rotary s itch into the PCB you might

need to straighten and adjust the pins on the bottom of the rotary s itch.

15. 3PDT Foot Switch – The 3PDT Foot S itch should be inserted into the PCB such

that the longer side of solder lugs is parallel to the longer side of the board (i.e.

length of the board)

16. LED – When inserting the LED into the PCB make sure that the flat side of the

LED matches the flat side on the figure belo . Lift the LED up from the PCB until

the top of the collar on the LED lines up or is slightly belo the top of the body of

the potentiometers. Top of the collar of the LED should be at most ¾”-13/16”

above the PCB.

LEAF

SPRING

Drilling the Enclosure

Little Devil PCB is designed ith the Hammond 1590BB type enclosure in mind. It is possible to

fit the Little Devil in a larger enclosure ith some modifications, though. Drill template belo is

for the Hammond 1590BB enclosure. When printing the drill template, for your version of the

kit, make sure to set printing options to no scaling, other ise template may not match the

enclosure.

Figure belo is the drilling t mplat for v rsion 1 of the kit.

Drilling Template for version 1 of the kit.

Figure belo is the drilling t mplat for v rsion 2 of the kit.

½” diameter

(DC Jack)

½” diameter

(¼” Jack)

½” diameter

(3PDT Switch)

1/8" diameter

(LED)

5/1 " diameter

(Potentiometers)

½” diameter

(¼” Jack)

3/8" diameter

(Rotary switch)

Drilling Template for version 2 of the kit.

After you have printed the template attach it to the enclosure. When attaching the template to

the enclosure make sure that the top edge of the template is aligned ith the top edge of the

enclosure. Mark the holes ith a center punch. Remove the template. Drill the holes.

Putting it together

After all components are soldered, the enclosure is drilled, and the faceplate/art ork is

attached you are ready to assemble the Little Devil.

Before inserting the PCB ith components soldered to it, unscre all nuts and remove all

ashers from potentiometers, ¼” jacks, and the rotary s itch. Unscre the top nut and remove

the locking asher and the hite asher from the 3PDT s itch. Unscre the bottom nut on

Indice

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