Roland GT-6 - User Manual

Copyright © 2002 ROLAND CORPORATION
All rights reserved. No part of this publication may be reproduced in any form without the written permission
of ROLAND CORPORATION.
Printed in Japan (0800) (CM)
17058013E0
Sep. 2001
GT-6(T)
SERVICE NOTES
First Edition
Issued by RJA
Guitar Effects Processor
TABLE OF CONTENTS
TABLE OF CONTENTS ...................................................1
SPECIFICATIONS.............................................................2
LOCATION OF CONTROLS PARTS LIST ...................4
LOCATION OF CONTROLS ..........................................4
EXPLODED VIEW PARTS LIST.....................................6
EXPLODED VIEW ............................................................6
WIRING DIAGRAM.........................................................8
PARTS LIST........................................................................9
IDENTIFYING THE VERSION NUMBER..................14
TRANSMITTING / RECEIVING DATA
VIA MIDI..........................................................................14
BULK DUMP ...................................................................14
BULK LOAD....................................................................14
TEST MODE.....................................................................14
RESTORING THE FACTORY SETTINGS
(FACTORY RESET).........................................................19
HOW TO UPDATE SYSTEM SOFTWARE .................19
BLOCK DIAGRAM.........................................................21
CIRCUIT BOARD (MAIN) ............................................22
CIRCUIT BOARD (MAIN) ............................................24
CIRCUIT DIAGRAM (MAIN 1/2) ...............................26
CIRCUIT DIAGRAM (MAIN 2/2) ...............................28
CIRCUIT BOARD (SW SHEET)....................................30
CIRCUIT DIAGRAM (SW SHEET) ..............................32
ERROR MESSAGE..........................................................34

Roland GT-6 Specifications

General

AD Conversion	24-bit
DA Conversion	24-bit
Sampling Frequency	44.1 kHz
Nominal Input Level	-10 dBu
Input Impedance	1 MΩ
Nominal Output Level	-10 dBu
Output Impedance	1 kΩ
Dynamic Range	100 dB
Display	LCD
Type	Guitar Multi-Effects Processor
Effects	Overdrive, Distortion, Chorus, Flanger, Phaser, Delay, Reverb, etc.
Input	1/4" phone type
Output	1/4-inch (6.35 mm) phone type
MIDI	In/Out
Expression Pedal	1/4" TRS phone type
Connectors	MIDI
Power Supply	AC adapter (DC 9V)
Weight	2.3 kg

Summary

Test Mode

DSP Check

Checks the DSP and DRAM for errors.

Display

Verifies the functionality of the LCD and LED segments.

LCD Contrast

Tests the adjustment range of the LCD contrast.

Switch

Inspects the operation of all front panel buttons.

VR Check

Verifies the functionality of all VR controls.

EXP PEDAL

Checks the operation of the expression pedal.

Error Message

Normal Error Message

Covers common error messages like Battery Low, MIDI Off Line, VALUE Locked, MIDI Buffer Full.

Error messages in test mode

Details errors encountered during the unit's test mode operations.