ROLAND A 90

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ROLAND A 90

Extracted text from ROLAND A 90 (Ocr-read)


Page 1

Jan. 1996

A-SCI/EX

A-90/EX

EXFANEIAELE CONTROLLER

TABLE OF CONTENTS

SPECIFICATIONS

LOCATION OF CONTROLS

EXPLODED VIEW

EXPLODED VIEW PARTS LIST

BLOCK DIAGRAM

KEYBOARD PARTS LIST

KEYBOARD DISASSEMBLY

PEDAL UNIT PARTS LIST

TEST MODE

SAVING AND LOADING USER DATA

INITIALIZING THE INTERNAL RAM

UPGRADING THE FLASH ROM SOFTWARE VERSION
CIRCUIT BOARD (KEYBOARD PA-4A88AFT-F ASSEMBLY)
CIRCUIT DIAGRAM (KEYBOARD PA-4A88AFT-F ASSEMBLY)
CIRCUIT BOARD (MAIN)

CIRCUIT DIAGRAM (MAIN)

CIRCUIT BOARD (PANEL L)

CIRCUIT DIAGRAM (PANEL L)

CIRCUIT BOARD (PANEL R)

CIRCUIT DIAGRAM (PANEL R)

CIRCUIT BOARD (JACK B)

CIRCUIT DIAGRAM (JACK B)

CIRCUIT BOARD (JACK A / AFT)

CIRCUIT DIAGRAM (JACK A / AFT)

CIRCUIT BOARD (PS-TR)

CIRCUIT BOARD (CARD)

CIRCUIT DIAGRAM (PS-TR)

CIRCUIT DIAGRAM (CARD)

E xX

fit? ------------
Will/El
RAKE --
MKIH°
7|] 7 7. . . . .
fififl-y U 1 b
fiflfififigflfi

N51714:, («IT

7-K |~-T:-|~ ---------------

1-f-?-9®t-

WEISRAMWTMM: ----------
7 3 'y >1ROMm/{-~;a >77 ~y 7075;; ............
gm. (KEYBOARD PA-4A88AFF-F ASSEMBLY) - -
Efifil KEYBOARD PA-4A88AFT-F ASSEMBLY) - .

(

:ETIEI (MAIN) -------
WEE! (MAIN) -----
Evil (PANEL L) -
ERIE (PANEL L)
£1)?! (PANEL R)
mam (PANEL R)
Emil (JACK B) -----
IEIESI (JACK B) -----

£15112! (JACKA/AFT)
Elfiél (JACK A/AFT) -

Eflifll (PS-TR) ~-
ETIEI (CARD) -~
BREE (PSTR) --

ELSE (CARD) ----------

SERVICE NOTES
First Edition

sued by RJA


7b:

@Roland 17059830

Copyright © 1996 by ROLAND CORPORATION

Printed in Japan AFFO (DP) 1