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Yamaha PORTATONE PSR-E303 Service Manual

Yamaha PORTATONE PSR-E303
35 pages
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PSR-E303/YPT-300
1
Copyright (c) Yamaha Corporation. All rights reserved. PDF-K467
’05.05
SERVICE MANUAL
HAMAMATSU, JAPAN
CONTENTS
SPECIFICATIONS .................................................................3
PANEL LAYOUT ..................................................................4
CIRCUIT BOARD LAYOUT & WIRING ................................5
BLOCK DIAGRAM ................................................................6
DISASSEMBLY PROCEDURE .............................................7
LSI PIN DESCRIPTION....................................................... 11
IC BLOCK DIAGRAM .........................................................13
CIRCUIT BOARDS ..............................................................14
TEST PROGRAM ...............................................................18
BACKUP & INITIALIZATION .............................................20
TRANSFERRING DATA BETWEEN
THE PSR-E303/YPT-300 and a COMPUTER .....................21
MIDI IMPLEMENTATION CHART .....................................23
MIDI DATA FORMAT .........................................................24
PARTS LIST
OVERALL CIRCUIT DIAGRAM
PK
001734
/
PSR-E303
YPT-300

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Yamaha PORTATONE PSR-E303 Specifications

General IconGeneral
Number of Keys61
DisplayLCD
MIDIYes
Polyphony32
Voices482 voices
Styles106
EffectsReverb, Chorus
Songs102
Power SupplyPA-3C/PA-130 or 6 x AA batteries
ConnectionsHeadphones, MIDI In/Out, Sustain Pedal

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