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Yamaha Portatone YPT-300 Service Manual

Yamaha Portatone YPT-300
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 YPT-300 Specifications

General IconGeneral
TypePortable Keyboard
Keyboard61 keys
Songs102 preset songs
DisplayLCD
Speakers2 x 2.5W
Polyphony32 notes
EffectsReverb, Chorus
Power SupplyPA-3C/PA-130 or 6 x AA batteries
ConnectivityHeadphones
Weight4.9 kg

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