AER AK15 plus Panduan Instalasi - Halaman 8

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Juga untuk AER AK15 plus: Lembar Instruksi (2 halaman)

Halaman Cetak

2. Check and inspect the guitar

2.1 General Requirements

• Make sure that the bridge is not lifting or

tilted and that the top is not sunken in.

• Check the string spacing, centre to centre of

the string, or middle between a pair, to make

sure it matches the AER pickup.

• Make sure that the saddle has a minimum

width of 2,3 mm. The undersaddle pickup is 2,3

mm wide.

• Check the string pressure on the pickup crystal

by assuring a minimum 20° break angle, if

more all the better. If your instrument does not

provide this, the string slots will need ramping

(done by a luthier).

2.2 Regarding the AK15 plus,

SHC and battery holder

• Check the inside of the guitar to identify

the ideal position for the AK15 plus SHC

(soundhole control) on the bass side of the

soundhole for easy operation while perform-

ing. Bracing around the soundhole differs

between makers and can conflict with the

control unit. Some guitar constructions re-

quire an underlay to glue the SHC on properly.

In any case should the gluing surface be flat

and free of dust or grease.

• Identify the ideal position for the battery

holder according to Battery Holder

Installation

2.3 Regarding the Pickup

• Check that the top bracing does not conflict

with the projected pickup cable hole through

the saddle slot.

• Verify that the slot depth (including pickup)

always remains more than half of the total

saddle height. Not enough space for the sad-

dle can cause bridge cracks. Check with your

qualified luthier.

• Make sure that the pickup fits the slot and

does not tilt within.

• Check the saddle. The materials, bone, Delrin®

and Micarta® require different attention. You

may consider getting a replacement saddle to

work on, keeping the original untouched.

The saddle-slot needs to be completely flat

and the saddle rectangular and flat. Even

if both are flat, some adjustments towards

pickup signal balance may be necessary. In

many cases the balance between the strings

of the acoustic instruments is not even – the

pickup just reflects this and needs compen-

sation to increase the string-pressure. Loosen

the strings and clamp them with e.g. a capo

to prevent them hindering you at your task.

Remove the string-pins, the saddle and the

endpin. Depending on what work needs to

be done, use paper masking tape to protect

the surface of your instruments around

bridge and endpin. Always check the tape for

possible residue on your guitar first at a 'safe'

spot ... you never know!

3. Woodwork

1. Drill or ream a 12 mm hole to fit the endpin

pre-amp. Make sure that it is centred prop-

erly and in a 90° angle to the end block.

2. Drill a 2.5 mm hole (for a wider slot use a

wider drill) with a 90° angle through the

saddle slot and the top of the guitar at the

edge of the slot. It is immaterial which side

is drilled, bass or treble side. Avoid hitting

the braces!

For installing the piezo pickup there should

be no routing required if the slot has a regular

length and depth! The width and depth should

be sufficient. Should your guitar require rout-

ing, have it done by a qualified luthier.

Take the piezo pickup and lead the mini-jack

through the hole in the top of the guitar. The

piezo will fit most saddle slots easily, the slot

will not require filling. Make sure that there are

no twists in the cable.

The 6 piezoelectric crystals sit underneath the

strings, they don't have to be centred, but do

need to touch the individual crystal. You can

use the cable as a spring to keep the pickup in

place.

Make sure the saddle slides easily into the slot,

however it should not tilt. Fixate the saddle

with masking tape to protect the piezo pickup