Yamaha AES420 User Manual

Copyright (c) Yamaha Corporation. All rights reserved. PDF-K28 ’04.04
AES420
SERVICE MANUAL
EG
011730
ELECTRIC GUITAR
HAMAMATSU, JAPAN
CONTENTS
OVERALL ASSEMBLY ............................................................. 2
CIRCUIT DIAGRAM.................................................................. 4
SPECIFICATIONS ..................................................................... 4
WIRING..................................................................................... 4
WARNING : CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/
electronic and/or plastic (Where applicable) components may also contain traces of chemicals
found by the California Health and Welfare Agency (and possibly other entities) to cause cancer
and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR
MOUTH FOR ANY REASON WHAT SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not
inhale solder fumes or expose eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product,
wash your hands before handling food.

Yamaha AES420 Specifications

Fingerboard and Neck

fingerboard material	Rosewood
fingerboard width at 0 fret	43.0 mm
fingerboard width at 12 fret	52.6 mm
number of frets	22
neck material	Nato
neck thickness at 1 fret	21.9 mm
neck thickness at 12 fret	24.7 mm

Parts

hardware	Chrome Plated
nut material	Graphite
tailpiece	Wrap Around (Chrome)
strings	D’Addario: EXL-120

Controls and Electronics

volume control	15A 500KΩ
tone control	05A 250KΩ
pickup switch	3 position Toggle Switch
condenser	0.022µF

Pickups

front pickup type	Humbucking
rear pickup type	Humbucking
front pickup magnet type	Ceramic
rear pickup magnet type	Ceramic

Weight and Dimensions

scale length	628.0 mm
length	995.8 mm
width	343.6 mm
net weight	3.4 kg
body depth	48 mm

Summary

Health and Environmental Precautions

Chemical Content Warning

Warning about lead in solder and other chemicals, with handling precautions.

Overall Guitar Assembly

Tailpiece Assembly

Details the wrap-around chrome tailpiece assembly.

Tuning Machine Assembly

Covers the tuning machine assembly components.

Jack Installation

Describes the procedure for installing the guitar jack.

Technical Diagrams and Specifications

Circuit Diagram

Visual representation of the guitar's electronic wiring.

Guitar Specifications

Technical details of the guitar, including dimensions and materials.

Wiring Instructions

Wiring Diagram

Details internal wiring connections for pickups, controls, and output jack.