Yamaha QY100 Service Manual

QY100
1
SERVICE MANUAL
SY
011558
20001220-59000
1.494K-408 K Printed in Japan 2000.12
HAMAMATSU, JAPAN
This document is printed on chlorine free (ECF) paper with soy ink.
SPECIFICATIONS ................................................ 3/5
PANEL LAYOUT .................................... 7
BLOCK DIAGRAM ............................ 9
CIRCUIT BOARD LAYOUT ............... 10
DISASSEMBLY PROCEDURE ............................ 11
LSI PIN DESCRIPTION .............................. 13
IC BLOCK DIAGRAM ................................. 15
CIRCUIT BOARDS ........................................ 18
TEST PROGRAM ............................ 21/30
ERROR MESSAGES ....................... 39/42
MIDI DATA FORMAT ............................................................ 45
MIDI IMPLEMENTATION CHART......................................... 70
PARTS LIST
OVERALL CIRCUIT DIAGRAM
CONTENTS

Yamaha QY100 Specifications

General

Type	Music Sequencer
Polyphony	32 notes
Sequencer	Yes
Tone Generator	AWM2
MIDI Channels	16
Tracks	16
Songs	20 songs
Effects	Reverb, Chorus, Variation
Display	LCD
Storage	SmartMedia card
Power Supply	6 x AA batteries or AC adapter
Connectors	MIDI In/Out, Headphone