Yamaha RM50 Service Manual

RHYTHM SOUND MODULE
PASC
MCONTENTS (8x)
SPECIFICATIONS (#8 StH) 2:6. 050 's.6.0:64)a 0160.60 0:08 9,9 0108 6 0 0.8 80/0100 Seee eres eas ees 2
PANEL LAYOUT (NILE 1 7D fb) cecceceetet etree ee te tee ee et ee neces 4
CIRCUIT BOARD LAYOUT (Ay KUT PUL) ee 6
BLOCK DIAGRAM (FO v 294 PADL)cccceceeeseseeteeeeees 8
DISASSEMBLY PROCEDURE (4)}885£NIB) «1-0-0 teeeee 10
LSI PIN DESCRIPTION (LSI sFARBERS) ore Seseeeeeneees 15
IC BLOCK DIAGRAM (ic7a Y 2 fl) C66 a Sica seabed ses e es 0's o baies ves ie 17
CIRCUIT BOARDS (v~— b FEAR) aobleisiecdhs Saee sacle tceaws coe ea eeie ees & 18
TEST PROGRAM (FR bh AODDL) cececreceeeeseeeeceeeeeeeees 24/34
ERROR MESSAGES (25 —% y 22) rere 45/48
MIDI DATA FORMAT Fab h AareereiaveiaSiehis 27a/b 1d /a'S eidtece rsiw Piero ble seisiare siete sid sieye Sie 51/58
MIDI IMPLEMENTATION CHART Ti Tee Seer ee ere Cre Tee Re 64
PARTS LIST
LM fortiie| YAMAHA CORP.
HAMAMATSU, JAPAN
2.95K-725 @ Printed in Japan '92.07