Yamaha PortaTone PSR-260 Service Manual

SERVICE MANUAL
CONTENTS
SPECIFICATIONS
........................................................................................
3
PANEL LAYOUT
............................................................................................
4
CIRCUIT BOARD LAYOUT & WIRING
.....................................................
5
BLOCK DIAGRAM
........................................................................................
6
DISASSEMBLY PROCEDURE
...................................................................
7
CIRCUIT BOARDS
.....................................................................................
10
LSI PIN DISCRIPTION
..............................................................................
14
IC BLOCK DIAGRAM
................................................................................
14
TEST PROGRAM & INITIALIZE
..............................................................
15
MIDI IMPLEMENTATION CHART
............................................................
17
PARTS LIST
OVERALL CIRCUIT DIAGRAM
HAMAMATSU, JAPAN
1.43K-317 I.T Printed in Japan 2000. 05
PK 001638
PSR-260
PSR-262
This document is printed on chlorine free (ECF) paper with soy ink.

Yamaha PortaTone PSR-260 Specifications

General

Voices	100
Styles	100
Display	LCD
Type	Portable Keyboard
Number of Keys	61
Effects	Reverb, Chorus
Connections	Headphone, MIDI, DC In
Power Supply	AC Adaptor
Polyphony	12-note
Amplifier	2 x 2.5W