Service Notes(A4)_e (EN)

Sep.

2001 GT-6(T) SERVICE NOTES First Edition Guitar Effects Processor Issued by RJA TABLE OF CONTENTS 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 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 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

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SPECIFICATIONS

Sep. 2001 SPECIFICATIONS EXIT button WRITE button GT-6: Guitar Effects Processor EZ TONE button PEDAL ASSIGN button • AD Conversion OUTPUT SELECT button TUNER/BYPASS button • DA Conversion 24 bit + AF method NAME/NS/MASTER button • Sampling Frequency 24 bit UTILITY button MANUAL button • Program Memories 44.1 kHz Number pedals1-4 BANK pedals (Up/Down) 340: 140 (User) + 200 (Preset) CTL pedal Expression pedal • Nominal Input Level INPUT: -10 dBu Expression pedal switch PATCH/VALUE dial • Input Impedance RETURN: -10 dBu INPUT: 1 M ohms RETURN: 220 k ohms OUTPUT LEVEL knob POWER switch • Nominal Output Level OUTPUT: 0 dBu Display 16 characters, 2 lines (backlit LCD) • Output Impedance SEND:

-10 dBu 2 characters, 7 segment LED Connectors OUTPUT: 2 k ohms INPUT jack OUTPUT jacks L (MONO)/R • Digital Output SEND:

2 k ohms PHONES jack SEND jack • Dynamic Range EIAJ CP1201, S/P DIF RETURN jack • Controls 100 dB or greater (IHF-A) DIGITAL OUT connector (coaxial) SUB EXP PEDAL/SUB CTL PEDAL1,2 jack (PREAMP/SPEAKER) MIDI connectors IN/OUT AC Adaptor jack TYPE knob • Power Supply AC 14 V; Supply AC adaptor (BOSS BRC series) GAIN knob BASS knob • Current Draw 800 mA MIDDLE knob TREBLE knob • Dimensions LEVEL knob SPEAKER knob 515 (W) x 261 (D) x 75 (H) mm 20-5/16 (W) x 10-5/16 (D) x 3 (H) inches On/Off button TYPE VARIATION button • Weight 4.7 kg/10 lbs 6 oz (excluding AC Adaptor) (OVERDRIVE/DISTORTION) TYPE knob • Accessories Owner’s Manual English (#G6017298) DRIVE knob AC Adaptor BRC-120V (#01786223) AC Adaptor BRC-230V (#01786234) LEVEL knob On/Off button AC Adaptor BRC-240V (#01786245) EURO CONVERTER PLUG ECP01-5A (PLUG for 230V) (#00905234) TYPE VARIATION button (DELAY) • Options MIDI Implementation English (#17041119) FEEDBACK knob LEVEL knob Foot Switch:

FS-5U, FS-5L On/Off button TAP button Expression Pedal: EV-5 (Roland), FV-300L + PCS-33 (Roland) Foot Switch Cable: PCS-31 (Roland) (CHORUS) (1/4 inches Phone Plug (stereo) - 1/4 inches Phone Plug (mono) x 2) LEVEL knob On/Off button * 0 dBu = 0.775 Vrms (REVERB) LEVEL knob * In the interest of product improvement, the specifications and/or appearance of this unit are subject to change without prior notice. On/Off button (WAH) On/Off button (EQ) On/Off button (FX-1) On/Off button (FX-2) On/Off button (MASTER) PATCH LEVEL knob PARAMETER buttons L/R 2

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SPECIFICATIONS

GT-6(T) 3

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LOCATION OF CONTROLS

Sep. 2001 GT-6(T) 5 4 1.3. 5. 18. fig.panel 1.2. LOCATION OF CONTROLS No.

Part Code Part Name Q’ty 1 G2477122 R-KNOB 15 2 F3279803 POTENTIOMETER RD901-40-125F- B54-11D (11 click) 1 3 F3279804 POTENTIOMETER RD901-40-125F- B54-06D (6 click) 2 4 F3279802 POTENTIOMETER RD901-40-125F- B54-00D 12 5 G2237113 GUARD PLATE 1 6 G2237112 GUARD 1 7 G2017152 TOP COVER 1 8 F5029412 LED (RED) A-552SR BW 1 9 F5029405 LMC-SSC2K16DLNY-H01 1 10 G2567119 DISPLAY COVER 1 11 22485303 D R-KNOB L BLK 248-303 1 12 01905467 ROTARY ENCODER EVE GC1 F20 24B 1 13 G2567118 ESCUTCEON (for PANEL) 1 14 G247751301 KEYTOP S WITHOUT LENS 4 15 G247751001 KEYTOP S BLACK WITH LENS 19 16 F5029111 LED (RED/GREEN) L-3WSRSGW- CC 2 17 F5029117 LED (RED) L-312LRD 17 18 1502928100 LED (RED) L-34HDSL 8 19 01780101 TACT SWITCH SKQKAB 23 20 G2217138 PEDAL LABEL(1) 1 21 G2217139 PEDAL LABEL(2) 1 22 G2217140 PEDAL LABEL(3) 1 23 G2217143 PEDAL LABEL(4) 1 24 G2217144 PEDAL LABEL(CTL) 1 25 G2217142 PEDAL LABEL(DOWN) 1 26 G2217141 PEDAL LABEL(UP) 1 27 G2357112 VR PLATE 1 28 G2567121 RUBBER SW ESCUTCHEON 1 29 G2567120 RUBBER SW 1 30 G2187533 VR PEDAL 1 31 G2187904 PEDAL HOLDER 1 32 01016167 11M/M ROTARY POT.

RK11K1140(10K SP B) 1 33 G2357111 CUSHION R 1 34 G2147117 PIN STAY 1 35 G2147119 BOLT HOLDER 2 36 G2357120 FOOT H=5 5 37 G2147116 SHAFT STAY 1 38 G2227301 PEDAL ESCUTCHEON 7 39 G2187602 SWITCH PEDAL 7 40 G2177103 SUPPORT SPRING 7 41 G2357109 PEDAL FOOT 7 42 13129778 TACT SWITCH SKQKAH 7 43 G2017150 BOTTOM COVER 1 44 13449155MF PHONE JACK (MONO) HTJ-064-12I 5 45 13449150MF PHONE JACK (STEREO) HTJ-064- 12D 2 46 01340412 P R-KNOB SF-A BLK/LCG 1 47 01676523 9M/M ROTARY POT.

RK09K12A0 10KAX2 1 48 01343723 RCA(PIN) JACK YKC21-3117 1 49 13429825 MIDI CONNECTOR YKF51-5054 1 50 12499175 G S-BUTTON S1H BLK 1 51 01676512 PUSH SWITCH SDKLA1-B 1 52 13449728 ADAPTOR JACK HEC0740-010010 1 53 22360712 CORD HOOK 236-712 1 PARTS LIST No.

Part Code Part Name Q’ty 1 G2477122 R-KNOB 15 2 F3279803 POTENTIOMETER RD901-40-125F- 1 B54-11D (11 click) 3 F3279804 POTENTIOMETER RD901-40-125F- 2 B54-06D (6 click) 4 F3279802 POTENTIOMETER RD901-40-125F- 12 B54-00D 5 G2237113 GUARD PLATE 1 6 G2237112 GUARD 1 7 G2017152 TOP COVER 1 8 F5029412 LED (RED) A-552SR BW 1 9 F5029405 LMC-SSC2K16DLNY-H01 1 10 G2567119 DISPLAY COVER 1 11 22485303 D R-KNOB L BLK 248-303 1 12 01905467 ROTARY ENCODER EVE GC1 F20 1 24B 13 G2567118 ESCUTCEON (for PANEL) 1 14 G247751301 KEYTOP S WITHOUT LENS 4 15 G247751001 KEYTOP S BLACK WITH LENS 19 16 F5029111 LED (RED/GREEN) L-3WSRSGW- 2 CC 17 F5029117 LED (RED) L-312LRD 17 18 1502928100 LED (RED) L-34HDSL 8 19 01780101 TACT SWITCH SKQKAB 23 20 G2217138 PEDAL LABEL(1) 1 21 G2217139 PEDAL LABEL(2) 1 22 G2217140 PEDAL LABEL(3) 1 23 G2217143 PEDAL LABEL(4) 1 24 G2217144 PEDAL LABEL(CTL) 1 25 G2217142 PEDAL LABEL(DOWN) 1 26 G2217141 PEDAL LABEL(UP) 1 27 G2357112 VR PLATE 1 28 G2567121 RUBBER SW ESCUTCHEON 1 29 G2567120 RUBBER SW 1 30 G2187533 VR PEDAL 1 31 G2187904 PEDAL HOLDER 1 32 01016167 11M/M ROTARY POT.

1 RK11K1140(10K SP B) 33 G2357111 CUSHION R 1 34 G2147117 PIN STAY 1 35 G2147119 BOLT HOLDER 2 36 G2357120 FOOT H=5 5 37 G2147116 SHAFT STAY 1 38 G2227301 PEDAL ESCUTCHEON 7 39 G2187602 SWITCH PEDAL 7 40 G2177103 SUPPORT SPRING 7 41 G2357109 PEDAL FOOT 7 42 13129778 TACT SWITCH SKQKAH 7 43 G2017150 BOTTOM COVER 1 44 13449155MF PHONE JACK (MONO) HTJ-064-12I 5 45 13449150MF PHONE JACK (STEREO) HTJ-064- 2 12D 46 01340412 P R-KNOB SF-A BLK/LCG 1 47 01676523 9M/M ROTARY POT.

RK09K12A0 1 10KAX2 48 01343723 RCA(PIN) JACK YKC21-3117 1 49 13429825 MIDI CONNECTOR YKF51-5054 1 50 12499175 G S-BUTTON S1H BLK 1 51 01676512 PUSH SWITCH SDKLA1-B 1 52 13449728 ADAPTOR JACK HEC0740-010010 1 53 22360712 CORD HOOK 236-712 1 15.17.19. 1.2. 5. 15.16.19. 10. 1.3. 11.12.13. 30.31.32.33. 1.3. 6. 7. 8. 9. 1.4. 14.19. 25. 26. 18. 27. 28.29. 34.35.37. 39.40.41.42 38. 18. 20. 21. 22. 23. 24. 46.47. 45. 50.51. 53. 36.43. 44. 48. 49. 52. No.

Part Code Part Name Q’ty 1 G2477122 R-KNOB 15 2 F3279803 POTENTIOMETER RD901-40-125F- B54-11D (11 click) 1 3 F3279804 POTENTIOMETER RD901-40-125F- B54-06D (6 click) 2 4 F3279802 POTENTIOMETER RD901-40-125F- B54-00D 12 5 6 7 8 9 10 11 12 G2237113 G2237112 G2017152 F5029412 F5029405 G2567119 22485303 01905467 GUARD PLATE GUARD TOP COVER LED (RED) A-552SR BW LMC-SSC2K16DLNY-H01 DISPLAY COVER D R-KNOB L BLK 248-303 ROTARY ENCODER EVE GC1 F20 24B 1 1 1 1 1 1 1 1 13 14 15 16 G2567118 G247751301 G247751001 F5029111 ESCUTCEON (for PANEL) KEYTOP S WITHOUT LENS KEYTOP S BLACK WITH LENS LED (RED/GREEN) L-3WSRSGW- CC 1 4 19 2 17 F5029117 LED (RED) L-312LRD 17 18 19 1502928100 01780101 LED (RED) L-34HDSL TACT SWITCH SKQKAB 8 23 20 21 G2217138 G2217139 PEDAL LABEL(1) PEDAL LABEL(2) 1 1 22 G2217140 PEDAL LABEL(3) 1 23 G2217143 PEDAL LABEL(4) 1 24 G2217144 PEDAL LABEL(CTL) 1 25 G2217142 PEDAL LABEL(DOWN) 1 26 G2217141 PEDAL LABEL(UP) 1 27 G2357112 VR PLATE 1 28 G2567121 RUBBER SW ESCUTCHEON 1 29 G2567120 RUBBER SW 1 30 G2187533 VR PEDAL 1 31 G2187904 PEDAL HOLDER 1 32 01016167 11M/M ROTARY POT.

RK11K1140(10K SP B) 1 33 G2357111 CUSHION R 1 34 G2147117 PIN STAY 1 35 G2147119 BOLT HOLDER 2 36 G2357120 FOOT H=5 5 37 G2147116 SHAFT STAY 1 38 G2227301 PEDAL ESCUTCHEON 7 39 G2187602 SWITCH PEDAL 7 40 G2177103 SUPPORT SPRING 7 41 G2357109 PEDAL FOOT 7 42 13129778 TACT SWITCH SKQKAH 7 43 G2017150 BOTTOM COVER 1 44 13449155MF PHONE JACK (MONO) HTJ-064-12I 5 45 13449150MF PHONE JACK (STEREO) HTJ-064- 12D 2 46 01340412 P R-KNOB SF-A BLK/LCG 1 47 01676523 9M/M ROTARY POT.

RK09K12A0 10KAX2 1 48 01343723 RCA(PIN) JACK YKC21-3117 1 49 13429825 MIDI CONNECTOR YKF51-5054 1 50 12499175 G S-BUTTON S1H BLK 1 51 01676512 PUSH SWITCH SDKLA1-B 1 52 13449728 ADAPTOR JACK HEC0740-010010 1 53 22360712 CORD HOOK 236-712 1

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