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Yamaha PortaTone PSR-350 User Manual

Yamaha PortaTone PSR-350
33 pages
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SERVICE MANUAL
CONTENTS
SPECIFICATIONS.............................................................................. 3
PANEL LAYOUT ................................................................................. 4
CIRCUIT BOARD LAYOUT & WIRING .............................................. 6
BLOCK DIAGRAM ............................................................................. 8
DISASSEMBLY PROCEDURE .......................................................... 9
LSI PIN DESCRIPTION ................................................................... 13
IC BLOCK DIAGRAM....................................................................... 16
CIRCUIT BOARDS .......................................................................... 16
TEST PROGRAM ............................................................................ 25
DATA BACKUP & INITIALIZATION .................................................. 28
MIDI IMPLEMENTATION CHART .................................................... 29
OVERALL CIRCUIT DIAGRAM
PARTS LIST
This document is printed on chlorine free (ECF) paper with soy ink.
1.412K-976 Printed in Japan ’01.05
PK 001653

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Yamaha PortaTone PSR-350 Specifications

General IconGeneral
Styles100
DisplayLCD
MIDIYes
Speakers12cm x 2
TypePortable Keyboard
BrandYamaha
ModelPSR-350
Weight5.5 kg
EffectsReverb, Chorus, DSP
Keyboard61 keys
Polyphony32 notes
Amplifiers2.5W + 2.5W
Power SupplyPA-3B AC adaptor or six 'D' size batteries
ConnectionsMIDI In/Out

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