SERVICE MANUAL
GUITAR PRE-AMPLIFIER
GA
011400
HAMAMATSU, JAPAN
2.1K-656 Printed in Japan '98.03
CONTENTS
SPECIFICATIONS·············································································· 3
PANEL LAYOUT················································································· 4
CIRCUIT BOARD LAYOUT ······························································ 5
BLOCK DIAGRAM·············································································· 6
DISASSEMBLY PROCEDURE························································ 7
LSI PIN DESCRIPTION····································································· 9
IC BLOCK DIAGRAM ······································································ 12
CIRCUIT BOARDS··········································································· 14
TEST PROGRAM············································································· 18
ERROR MESSAGES······································································· 21
MIDI IMPLEMENTATION CHART················································· 22
PARTS LIST
OVERALL CIRCUIT DIAGRAM
19980301-198000
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