Leo jaymz Lb-400 User manual

DANGER!

Danger for children

Ensure that plastic bags, packaging, etc. are properly dispose

are not in the reach of babies andyoung children. Chokinghazard

Ensure that children do not detach any smallparts(e.g. knobs

like) fromthe product.They could swallow the piecesand choke

Never let childrenplay unattended with the product.

Safety instructions

CAUTION!

Danger of cutson the hands

While assemblingand joiningindividual partstogether with scre

attention to sharpedges on tools,screwsand components.

LB -400Bass DIY Kit

Always wear safety glassesor goggles when operating equipment

glassesor reading glassesare not safety glasses.Be certain the sa

wear meet the appropriate standardsof the AmericanNational Standard

Institute (ANSI). Because there are various waysto cut andjoin w

makesubstitutionsfor the methodsstated in this manual. We try

easiest methodspossible.However, only you knowyour skillswit

machinery. Never compromiseyour safety by usinga cutting metho

you are not comfortable.Instead, find an alternative approachth

sameresult.

Theseinstructions assumethat you are familiar with the safe ope

wood workingmachinery andwoodworkingtools, andunderstand

usedto assemblethis project. If you donot qualify for both of the

buildingthis project for your own safety. Read andunderstandth

manualfor the machinery you intend to use, take a woodworking

your local library for moreinformation. Woodworkingmachinery

inherently dangerousbecausethey usesharpedgesthat can and

serious personalinjury includingamputation and death. Donot un

the ability of these toolsandmachineryto causeinjury. Never ope

without all guardsin place andalways wear approved safety glasses

own safety, please heed this warning.

What's in the delivery

2 All the components deliveried

LB -400Bass DIY Kit

3Assembling

Assemble instruments prepare

3.1 Sand the bass

LB -400Bass DIY Kit

Provide the following tools andmaterialsfor the assemblyof the guitar:

Screwdriver

Rubbermallet

Ring spanner

Pliers

Paint and accessories

Sandpaper

Guitar paint spray can

The kits came with little bit roughly surface, so it need to be sand first with

150 grit very gentely. Some position of the wood doing it slightly not working

very well you can little bit more fiercely for sand it off. DUe to sand it more

and more, you can change the sand paper from 150 grit to 400. Until you

feeling it smooth enough when you touch the surface by your hand.

LB -400Bass DIY Kit

3Assembling

3.2 Paint the bass

It isimportant to paint the bodyand neckbeforeassembly.

Alwayswear a dustmaskwhenapplying spraypaint.

3.2.1 Fillup the grain.

Thebody is madeof mahogan, and theneck is

made of solid maple. Open grained woods need

to be filled before finishing in order to achieve a

flat surface.

WesuggestusingourNeutral Color

Tonegrainfiller following the instructions on the

label. Three applications are recommended to

get a nice flat surface to build finish coats

over.The grainfiller can also be used to fill any

gaps, chips,or other imperfections in the wood.

Asa general rule, you should fillup the

grainuseNeutral Color Tone grainfiller until you

can't seethe poresof the wood with the

nakedeyes. Then we can start for the precess

below.

Use a damp cloth for dip with your favorite color

and wipe on the body and neck as you like. Not

only one time may can not reach the exactly

what you espected, so sand with 320-grit and

wipe again and again until got your lovely color.

3.2.2 Coloring the body

LB -400Bass DIY Kit

3Assembling

3.2.3 Coloring the Neck

Sand the back of the neck use the same

method for sand the body. Before you painting

the neck please make sure that will you paint

the back or not, if not you have to tape the side

of the headstock.

Use the same method for stain the top of

headstock, then you got this and waiting for

dry then sand it.

Most players are like the natural back of the

neck, so you can use the tone oil only for coated

on the back of neck. And sand it after it

completely dry, and coat again, after dry enough

sand it again. Keep the operation several times

then you can polish it more glossy.

3Assembling

LB -400Bass DIY Kit

3.3 Installation

Installl the tuning machines for the headstock. Let

the machine heads go through the hold of

headstock form rear side and mounting the nut on

it with washer. But do not tight them very much.

(We make the example in black hardwares, infact

all are same method.)

Use a streight ruler line up to the machine headsfor

align all of them and make each tuning machine

perpendicular to the edge of the headstock, then

tighten the nut with washer in the front side.

Tape drill and leave and the tail section only half

length of the thickness of the headstock. In order

to not drill break through the wood of headstock.

Pre-drill small hole from the rear side of the

headstock to through the screw hole of the

machine heads. Now it's time for tighten the nut

of the machine heads by span.

3.3.1 Mounting the machine heads

3.3.2 Install the electronics

You can find an access from each pickup cavity to

the back cavity. And i

f there is any copper foil

paper sticking inside of all the cavities as shilding

that will be perfect.

Let the both neck and bridge pickups' wire going

through the access to the back cavity and leave the

wires in it.

3Assembling

LB -400Bass DIY Kit

No you can mounting the screws totheholefor fix

all the machine heads.

Completely tight the the nuts with the washers for

the headstock on top side.

3Assembling

Press the pickup fully down into the cavity and let it

stay in the middle and moveable inside of the cavity,

let all the pickups contact with the body completely.

Then pre-drill a small hole. Pre-drill always much

helpful to drive the screw on the wood easier.

Find the pickup screws with springs, install it on the

pickup as the illustration. It means the screw have to

go through the pickup first and spring second.

Drive the screw must down to the hole which you

have pre-drilled, only in the case can make sure the

screw are certainly going down streight but no even

little incline. Drive the screws not to the end and

leave a space adjust the height for both pickups. You

can use your thumb for check the spring working

well.

LB -400Bass DIY Kit

3.3.3 Wiring

Use a pencil for put a A4 paper on the 3 holes for

the control knobs and mark the position for both

Volume and the Tone.

LB -400Bass DIY Kit

3Assembling

Cut the A4 paper as much as smaller that can

contain the 3 marked positions, use it as a

template for drill 3 holes to a hard carton paper

by screw driver or drills or sharp wooden stick.

Notice: Please remember the top and rear side of

the paper carton same as the body.

Put the pertetiometer into the hole from rear side

to the top side. And cut the paper carton as much

small as you can contain all the potentiometers on

it.

Insert the ground cable wire to the surface of the

body via the access to the ground wire hole. It

have to full contact with the bridge or welding

with the bridge.

Welding the wires as the the circle diagram in

next page.

Volumn for NP

Volumn for BP

TONE

JACK

A500K

B500K

Neck Pickup

Bridge Pickup

GROUND TO BRIDGE

WIRE FOR LB BASS

3Assembling

LB -400Bass DIY Kit

3.3.5 Fix the electronics

3.3.6 Joint the neck

After welding the potentiometers and then insert

the potentiometer to the control knob hole of the

body from the back cavity. Then tighten the nut

with the washers on the top side of the body.

Press the neck into the socket of the body very

tightly, Leo Jaymz electric guitar or bass kits are all

drilled and cutted by CNC machine with accurate

draft, so there is no any gaps between the body and

neck at all when you fully put the neck into the neck

pocket.

Bolt the metal board on the back of body's socket,

align the 4 holes for both the metal board and the

body, drive the biggest screw in our package to the

body for only small section for leave it stand there.

Now clamp it with anything as a buffer for avoid

any scratch on the bass. Here we choose several

pieces of thicker plastic table cover for clamp with

it.

Drill the biggest screws into the body to the 4 holes

of the metal board. Drive the screws very streight to

the body, you'd better choose a powerful cordless

driver for drive it.

3Assembling

3.3.5 Install the bridge and strings

Put the bridge on the bridge position and let it press

and contact the ground cable wire, then for measure

it. From the nut to the bridge saddles is 34"(864mm)

as a scale length. Then use a pencil mark the line of

bridge.

Check the steel ruler is go through on the middle of

the top of the finger board inlay, then adjust the

bridge position for more right or more left. There is 5

holes on the bridge, let the 3rd(middle) hole align the

ruler. Mark the 5 holes and pre-drill, then for fix them

with the bridge screws.

Let the 4 strings go through the hole from the bottom

of the bridge, and leave the ball-end here. The treble

string on the right side, and the bass string on left

side.

Rolling the strings to the column of the machine

heads, at most 2 and half circles otherwise there is no

space to keep the thicker bass string rolling on the

column.

LB -400Bass DIY Kit

4Setup

4 Setup the guitar

4.1 Truss rod adjustment

The truss rod runs down the centre of a bass

guitar neck. It can be used to straighten

bowed necks by either lossening or

tightening it.

To see if the neck on your bass guitar has

bowed place a finger on the 1st fret of the

low E string then use your other hand to

press down somewhere around the 15th fret

of the same string. The gap between the

string and the frets should be around a

consistent width of a credit card throughout.

1. Neutral Position - Slight forward bow

No Truss Rod adjustment needed.

2. Forward bow - Extreme U-Shaped Bow

Turn Truss Rod

counter clockwise

Buzzing near here Buzzing near here

3. Backward bow - Extreme N-Shaped Bow

Buzzing near here

Turn Truss Rod clockwise

Buzzing near here

4Setup

4.2

4.3 Intonation

4.4 Finish the assembling

String action

The goal here is to make sure that all string heights are

equal in distance from the bottom of the string to the fret.

To adjust the saddles' height by 0.059" allen wrench, and

the string height as the program as below:

Setting a bass guitar's intonation can be a painful process

but is well worth spending the time getting right.

1. To start, make sure all the strings are in tune - you will

need to retune each string everytime you make an

adjustment with your screwdriver.

2. Next, play a note at the 12 fret. You will notice that this

note will be either sharper or flatter than the open string.

3. Turn the screw that goes through the bridge into the saddle either clockwise (sharper)

or counterclockwise (flatter) - remember to make small adjustments. Your goal is to get

the 12th fret in perfect tune. As you continue this process keep re-tuning the open

string with a quality tuner.

LB -400Bass DIY Kit

Screw the back cavity and truss rod cover, find the right angle for install it almost no

any gap between the cover and the cavity. Install the output jack, control knob, and

strap button.

5 Other Hint

5 Other Hints

There are a few other things that you can do to optimize your tuning stability:

1. Each time you play your guitar, before you do your final tuning, play for a few

minutes to allow the strings to warm up. Metal expands when warm and contracts

when cool. After you've played a few riffs, you can then do your final tuning;

2. Wipe the strings, neck and bridge with a lint-free cloth after playing;

3. When transporting or storing your guitar, even for short periods, avoid leaving it

anyplace you wouldn't feel comfortable yourself.

Remember, guitars are tempered instruments! Re-tune, play and make further

adjustments as needed.

We hope you have enjoyed building your own favorite guitar! If you have any

questions along the way please email:

Company: info@hygent.com,

Robert: Robert@hygent.com

Or login the web as: www.leojaymz.com for download your required documents in

PDF file.

LB -400Bass DIY Kit

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