Yamaha EZ-AG Service Manual

1
EZ-AG
SERVICE MANUAL
PK
011700
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K167 ’03.11
HAMAMATSU, JAPAN
CONTENTS
SPECIFICATIONS..................................................................... 3
PANEL LAYOUT ...................................................................... 4
CIRCUIT BOARD LAYOUT ...................................................... 5
BLOCK DIAGRAM.......................................................................... 6
DISASSEMBLY PROCEDURE ................................................. 7
LSI PIN DESCRIPTION............................................................. 9
IC BLOCK DIAGRAM ............................................................. 11
CIRCUIT BOARDS.................................................................. 12
TEST PROGRAM ................................................................... 16
INSPECTION .......................................................................... 18
MIDI IMPLEMENTATION CHART......................................... 19
PARTS LIST
OVERALL CIRCUIT DIAGRAM

Yamaha EZ-AG Specifications

General

Number of Frets	22
Number of Strings	6
MIDI Compatibility	Yes
Type	Electric Guitar
Power Supply	AC adapter
Connectivity	MIDI Out

Summary

SPECIFICATIONS

PANEL LAYOUT

BLOCK DIAGRAM

DISASSEMBLY PROCEDURE

Bottom, AM, DM, SE/SE1 Board Removal

Steps for disassembling the guitar body and removing main circuit boards.

Speaker Removal

DISASSEMBLY PROCEDURE (continued)

Strings Sensor and PN Board Removal

LSI PIN DESCRIPTION

IC BLOCK DIAGRAM

TEST PROGRAM

Test Program Operation

How to enter test mode, select, and execute tests.

Test Items List

Detailed list of test items, their functions, and judgment criteria.

INSPECTION

Functional and Battery Checks

MIDI IMPLEMENTATION CHART

PARTS LIST

Overall, Strings Sensor, and Electrical Parts