SERVICE MANUAL
PK
001627
HAMAMATSU, JAPAN
CONTENTS
SPECIFICATIONS .............................................. 3/4
PANEL LAYOUT ...................................... 5
PSR-740 BLOCK DIAGRAM
.... 6
PSR-640 BLOCK DIAGRAM
.... 7
CIRCUIT BOARD LAYOUT ................. 8
DISASSEMBLY PROCEDURE ............................. 10
LSI PIN DESCRIPTION ............................... 14
IC BLOCK DIAGRAM .................................. 19
CIRCUIT BOARDS ........................................ 20
TEST PROGRAM ............................. 25/27
DATA INITIALIZATION .......................................... 29
ALERT MESSAGE LIST ................... 30/32
MIDI DATA FORMAT ................. 34
PSR-740 MIDI IMPLEMENTATION CHART ......................... 49
PSR-640 MIDI IMPLEMENTATION CHART ......................... 50
PARTS LIST
OVERALL CIRCUIT DIAGRAM
PSR-740
PSR-640
PSR-740 19990901-160000
PSR-640 19990901-120000
1.82K-9201 Printed in Japan ‘99.08
To Next Page
Need help?
General
