Yamaha PortaTone PSR-2000 Service Manual

PSR-2000
SERVICE MANUAL
PK
001666
HAMAMATSU, JAPAN
1.421K-4071 Printed in Japan '01.09
CONTENTS
SPECIFICATIONS···································································· 2
PANEL LAYOUT······································································· 4
CIRCUIT BOARD LAYOUT ······················································ 6
DISASSEMBLY PROCEDURE················································· 8
LSI PIN DESCRIPTION·························································· 13
IC BLOCK DIAGRAM ····························································· 20
CIRCUIT BOARDS ································································· 21
TEST PROGRAM ··································································· 39
SYSTEM RESET ···································································· 42
MIDI IMPLEMENTATION CHART·········································· 43
MIDI DATA FORMAT······························································ 44
PARTS LIST
BLOCK DIAGRAM
OVERALL CIRCUIT DIAGRAM
This document is printed on chlorine free (ECF) paper with soy ink.
PSR-1000

Yamaha PortaTone PSR-2000 Specifications

General

Sequencer	16-track
Keyboard	61 keys with touch response
Effects	Reverb, Chorus, DSP
Voices	480
Display	LCD
MIDI	In/Out, Thru
Amplifiers	12W + 12W
Speakers	12cm x 2
Connectivity	MIDI
Connections	MIDI In/Out
Power Supply	AC adapter
Polyphony	64