Roland EM-20 - User Manual

SCREW 2,9 X13 TC TC PR TROP COD. J2289130
TABLE OF CONTENTS Page
SPECIFICATIONS 1
LOCATION OF CONTROLS EM-20 2
LOCATION OF CONTROLS EM-10 3
EXPLODED VIEW EM-20/EM-10 4
WIRING DIAGRAM EM-20/EM-10 5
KEYBOARD PARTS LIST 5
PARTS LIST EM-20/EM-10 6/7
BLOCK DIAGRAM (EM-20) 8
BLOCK DIAGRAM (EM-10) 9
MAIN PCB ASSY EM-20/EM-10 10
CIRCUIT DIAGRAM MAIN PCB ASSY (EM-20) 11
CIRCUIT DIAGRAM MAIN PCB ASSY (EM-10) 12
CPU PCB ASSY EM-20/EM-10 13
CIRCUIT DIAGRAM CPU PCB ASSY (EM-20) 14
CIRCUIT DIAGRAM CPU PCB ASSY (EM-10) 15
CONTROL PCB ASSY EM-20 16
CIRCUIT DIAGRAM CONTROL PCB ASSY (EM-20) 17
CONTROL PCB ASSY EM-10 18
CIRCUIT DIAGRAM CONTROL PCB ASSY (EM-10) 19
RIGHT CONTACT PCB ASSY w/RUBBER CONTACT & CIRCUIT DIAGRAM 20
LEFT CONTACT PCB ASSY w/RUBBER CONTACT & CIRCUIT DIAGRAM 20
TEST MODE 21/23
Specifications
EM-20/EM-10
1
EM-20
GENERAL
61-KEY
TOUCH SENSITIVE KEYBOARD
TOUCH CONTROLLER (Ribbon Controller)
TWO TRACK RECORDER (2nd Track)
BACKLIT CUSTOM DISPLAY
2 x 5 W RMS OUTPUT POWER
8 USER PROGRAM
4 BALANCES
REVERB & CHORUS switches
MELODY INTELLIGENT, LAYER (Upper 1/2)
BASS INVERSION
GENERATION & SOUNDS
24 VOICES POLYPHONY
16 MULTITIMBRAL PARTS
354 TONES AND 12 DRUM KITS
(New Tones - 8 MB PCM Samples)
GM-GS COMPATIBLE
STYLES
64 STYLES ON ROM
STYLE MANIPULATOR (Style Morphing+Style Progression)
MODE
Arranger, Organ, M. Drums
8 ONE TOUCH for each style
CONTROLLERS
PITCH BENDER - MODULATION SWITCHES
DIGITAL VOLUME
CONNECTIONS
REAR POWER SWITCH
JACK OUTPUT (L/mono - R)
SUSTAIN FOOT SWITCH
2 x REAR HEADPHONES
MIDI IN-OUT
POWER SUPPLY 12V 1A ACO Adaptor (230V)
For the other voltages see on page. 7
DIMENSIONS
960 (W) X 380 (D) X 128 (H ) mm
WEIGHT
7.10 Kg
ACCESSORIES
See details on page 7
EM-10
GENERAL
61-KEY
TOUCH SENSITIVE KEYBOARD
TWO TRACK RECORDER (2nd Track)
BACKLIT CUSTOM DISPLAY
2 x 3 W RMS OUTPUT POWER
8 USER PROGRAM
2 BALANCES
CHORUS/REVERB switch
MELODY INTELLIGENT
GENERATION & SOUNDS
24 VOICES POLYPHONY
16 MULTITIMBRAL PARTS
226 TONES AND 9 DRUM KITS
(1 MB PCM Samples)
GM-GS COMPATIBLE
STYLES
64 STYLES ON ROM
STYLE MANIPULATOR (Style Morphing+Style Progression)
MODE
Arranger / M. Drums
8 ONE TOUCH for each style
CONTROLLERS
DIGITAL VOLUME
CONNECTIONS
REAR POWER SWITCH
SUSTAIN FOOT SWITCH
REAR HEADPHONES 1/OUT
REAR HEADPHONES 2
MIDI IN-OUT
POWER SUPPLY 12V 500mA ACN Adaptor (230V)
For the other voltages see on page. 7
DIMENSIONS
960 (W) X 380 (D) X 128 (H ) mm
WEIGHT
7.00 Kg
ACCESSORIES
See details on page 7
July, 1999
Issued by RES
SN00029 K6018357 Printed in Italy (AC00) (AD)
Copyright © 1999 by ROLAND CORPORATION
All rights reserved. No parts of this publication may be reproduced in any form whithout the written permission of ROLAND CORPORATION.
SERVICE NOTES
DISASSEMBLY

Summary

Specifications

EM-20 Model Specifications

Details general features, sound generation, styles, controllers, and connections for the EM-20.

EM-10 Model Specifications

Details general features, sound generation, styles, controllers, and connections for the EM-10.

Disassembly Instructions

EM-20 Control Panel Layout

EM-10 Control Panel Layout

Exploded View and Parts Identification

Wiring Diagram and Keyboard Parts List

Comprehensive Parts List

EM-20 Block Diagram

EM-10 Block Diagram

Main PCB Assembly Diagram

Main PCB Circuit Diagram (EM-20)

Main PCB Circuit Diagram (EM-10)

CPU PCB Assembly Diagram

CPU PCB Circuit Diagram (EM-20)

CPU PCB Circuit Diagram (EM-10)

EM-20 Control PCB Assembly Diagram

Control PCB Circuit Diagram (EM-20)

EM-10 Control PCB Assembly Diagram

Control PCB Circuit Diagram (EM-10)

Contact PCB Assemblies and Circuit Diagrams

Test Mode Operation

Test Mode Entry and Overview

Details on entering the test mode, button functions, display messages, and general test structure.

Control Panel and MIDI Tests

Covers checks for control panel buttons, MIDI communication, and touch controller functionality.

Detailed Test Procedures

Keyboard, Audio Signal, and Speaker Output Tests

Includes keyboard check, audio sine wave tests, and speaker output verification procedures.

Display, Reverb, and Chorus Effect Tests

Covers LCD display, reverb, and chorus effect diagnostic tests.

Memory, Initialization, and Version Checks

Memory Integrity and Initialization

Covers ROM/RAM tests, factory setup initialization, and power-on audio test procedures.

Software Version Identification

Details the procedure to identify the instrument's current software version.

Roland EM-20 Specifications

General

Number of Keys	61
Sounds/Tones	128
Rhythms/Styles	100
Effects	Reverb, Chorus
Display	LCD
Sequencer	Yes
Velocity Sensitivity	Yes
Connections	MIDI In/Out
Power Supply	AC Adaptor