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
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.
17058013E0
Printed in Japan (0800) (CM)
Sep. 2001
SPECIFICATIONS
EXIT button
WRITE button
EZ TONE button
GT-6: Guitar Effects Processor
•
•
•
•
•
•
•
•
•
•
•
PEDAL ASSIGN button
AD Conversion
OUTPUT SELECT button
24 bit + AF method
TUNER/BYPASS button
DA Conversion
NAME/NS/MASTER button
24 bit
UTILITY button
Sampling Frequency
MANUAL button
44.1 kHz
Number pedals1-4
Program Memories
BANK pedals (Up/Down)
340: 140 (User) + 200 (Preset)
CTL pedal
Nominal Input Level
Expression pedal
INPUT: -10 dBu
Expression pedal switch
RETURN: -10 dBu
PATCH/VALUE dial
Input Impedance
< Rear Panel >
INPUT: 1 M ohms
OUTPUT LEVEL knob
RETURN: 220 k ohms
POWER switch
Nominal Output Level
Display
OUTPUT: 0 dBu
16 characters, 2 lines (backlit LCD)
SEND: -10 dBu
2 characters, 7 segment LED
Output Impedance
Connectors
OUTPUT: 2 k ohms
INPUT jack
SEND: 2 k ohms
OUTPUT jacks L (MONO)/R
Digital Output
PHONES jack
EIAJ CP1201, S/P DIF
SEND jack
Dynamic Range
RETURN jack
100 dB or greater (IHF-A)
DIGITAL OUT connector (coaxial)
Controls
SUB EXP PEDAL/SUB CTL PEDAL1,2 jack
< Front Panel >
MIDI connectors IN/OUT
AC Adaptor jack
(PREAMP/SPEAKER)
TYPE knob
•
AC 14 V; Supply AC adaptor (BOSS BRC series)
GAIN knob
BASS knob
•
•
20-5/16 (W) x 10-5/16 (D) x 3 (H) inches
SPEAKER knob
•
Weight
4.7 kg/10 lbs 6 oz (excluding AC Adaptor)
TYPE VARIATION button
(OVERDRIVE/DISTORTION)
Dimensions
515 (W) x 261 (D) x 75 (H) mm
LEVEL knob
On/Off button
Current Draw
800 mA
MIDDLE knob
TREBLE knob
Power Supply
•
Accessories
TYPE knob
Owner’s Manual English (#G6017298)
DRIVE knob
AC Adaptor BRC-120V (#01786223)
LEVEL knob
AC Adaptor BRC-230V (#01786234)
On/Off button
AC Adaptor BRC-240V (#01786245)
EURO CONVERTER PLUG ECP01-5A (PLUG for 230V) (#00905234)
TYPE VARIATION button
(DELAY)
•
FEEDBACK knob
Options
MIDI Implementation English (#17041119)
Foot Switch: FS-5U, FS-5L
LEVEL knob
Expression Pedal: EV-5 (Roland), FV-300L + PCS-33 (Roland)
On/Off button
Foot Switch Cable: PCS-31 (Roland)
TAP button
(1/4 inches Phone Plug (stereo) - 1/4 inches Phone Plug (mono) x 2)
(CHORUS)
LEVEL knob
On/Off button
(REVERB)
LEVEL knob
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
*
0 dBu = 0.775 Vrms
*
In the interest of product improvement, the specifications and/or appearance of
this unit are subject to change without prior notice.
GT-6(T)
3
Sep. 2001
GT-6(T)
LOCATION OF CONTROLS
PARTS LIST
LOCATION OF CONTROLS
fig.panel
No.
1
2
Part Code
G2477122
F3279803
3
F3279804
4
F3279802
5
6
7
8
9
10
11
12
G2237113
G2237112
G2017152
F5029412
F5029405
G2567119
22485303
01905467
13
14
15
16
G2567118
G247751301
G247751001
F5029111
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
F5029117
1502928100
01780101
G2217138
G2217139
G2217140
G2217143
G2217144
G2217142
G2217141
G2357112
G2567121
G2567120
G2187533
G2187904
01016167
33
34
35
36
37
38
39
40
41
42
43
44
45
G2357111
G2147117
G2147119
G2357120
G2147116
G2227301
G2187602
G2177103
G2357109
13129778
G2017150
13449155MF
13449150MF
46
47
01340412
01676523
48
49
50
51
52
53
01343723
13429825
12499175
01676512
13449728
22360712
Part Name
R-KNOB
POTENTIOMETER RD901-40-125FB54-11D (11 click)
POTENTIOMETER RD901-40-125FB54-06D (6 click)
POTENTIOMETER RD901-40-125FB54-00D
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
ESCUTCEON (for PANEL)
KEYTOP S WITHOUT LENS
KEYTOP S BLACK WITH LENS
LED (RED/GREEN) L-3WSRSGWCC
LED (RED) L-312LRD
LED (RED) L-34HDSL
TACT SWITCH SKQKAB
PEDAL LABEL(1)
PEDAL LABEL(2)
PEDAL LABEL(3)
PEDAL LABEL(4)
PEDAL LABEL(CTL)
PEDAL LABEL(DOWN)
PEDAL LABEL(UP)
VR PLATE
RUBBER SW ESCUTCHEON
RUBBER SW
VR PEDAL
PEDAL HOLDER
11M/M ROTARY POT.
RK11K1140(10K SP B)
CUSHION R
PIN STAY
BOLT HOLDER
FOOT H=5
SHAFT STAY
PEDAL ESCUTCHEON
SWITCH PEDAL
SUPPORT SPRING
PEDAL FOOT
TACT SWITCH SKQKAH
BOTTOM COVER
PHONE JACK (MONO) HTJ-064-12I
PHONE JACK (STEREO) HTJ-06412D
P R-KNOB SF-A BLK/LCG
9M/M ROTARY POT. RK09K12A0
10KAX2
RCA(PIN) JACK YKC21-3117
MIDI CONNECTOR YKF51-5054
G S-BUTTON S1H BLK
PUSH SWITCH SDKLA1-B
ADAPTOR JACK HEC0740-010010
CORD HOOK 236-712
Q’ty
15
1
15.16.19. 10.
5.
1.2.
11.12.13.
6.
1.3.
7.
9.
8.
1.4.
14.19.
25.
26.
18.
27.
28.29.
30.31.32.33.
34.35.37.
2
12
1
1
1
1
1
1
1
1
1
4
19
2
17
8
23
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
5
1
7
7
7
7
7
1
5
2
39.40.41.42
38.
18.
20.
21.
24.
23.
22.
1
1
1
1
1
1
1
1
45.
46.47.
36.43.
4
15.17.19.
1.3.
44.
50.51.
48.
49.
53.
52.
5
Sep. 2001
GT-6(T)
EXPLODED VIEW PARTS LIST
EXPLODED VIEW
fig.jack
a
[Parts]
No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Part Code
G2017152
G2017150
G2237112
G2237113
G2567120
G2567121
G2357120
G2567119
12499175
22485303
01340412
22360712
G2217138
G2217139
G2217140
G2217143
G2217144
G2217141
G2217142
G247751001
G247751301
G2147116
G2477122
G2567118
G2227301
G2187602
G2177103
G2357109
G2187904
G2187533
G2357111
G2147117
G2357112
F5029405
75D523S000
75D523S000
75D523S000
75D523M000
75D523S000
75D523S000
G2147119
12569249S0
[Screws]
No.
Part Code
a
H5029854
b
********
c
H5039126
d
H5039520
e
H5039510
f
H5039112
g
40342701
h
40011278
I
40011312
k
40127689
m
H5019124
n
H5019130
o
p
q
r
s
40015901
40342690
40016067
40016001
40019123
Part Name
TOP COVER
BOTTOM COVER
GUARD
GUARD PLATE
RUBBER SW
RUBBER SW ESCUTCHEON
FOOT H=5
DISPLAY COVER
G S-BUTTON S1H BLK
D R-KNOB L BLK
P R-KNOB SF-A BLK/LCG
CORD HOOK 236-712
PEDAL LABEL(1)
PEDAL LABEL(2)
PEDAL LABEL(3)
PEDAL LABEL(4)
PEDAL LABEL(CTL)
PEDAL LABEL(UP)
PEDAL LABEL(DOWN)
KEYTOP S BLACK WITH LENS
KEYTOP S WITHOUT LENS
SHAFT STAY
R-KNOB
ESCUTCEON (ABS,for PANEL)
PEDAL ESCUTCHEON
SWITCH PEDAL
SUPPORT SPRING
PEDAL FOOT
PEDAL HOLDER
VR PEDAL
CUSHION R
PIN STAY
VR PLATE
LCD
SW1 BOARD
SW2 BOARD
SW3 BOARD
MAIN BOARD
SW4 BOARD
SW5 BOARD
BOLT HOLDER
LITHIUM BATTERY CR2032
25
8
28
4
27
10
b
3
c
26
29
41
23
41
d
33
s
24
13
31
k
19
14
p
q
18
15
o
6
5
16
34
20
17
q
r
36
37
32
30
g
21
1
35
h
7
38
Part Name
HEX BUTTON BOLT M3x12 FeNi
M9 NUT (with ENCODER)
M9 WASHER (with ENCODER)
M9 NUT (VR)
NUT M9x11x2 FeNi (for Phone Jack)
WASHER M9 (for Phone Jack)
SCREW 2.3x8 BINDING TAPTITE P ZC
SCREW 3x8 BINDING TAPTITE P ZC
SCREW 3x8 BINDING TAPTITE P BZC
SCREW M3x10 BINDING TAPTITE S BZC
SCREW M3x6 BINDING W/PW+SW ZC
(Small Washer)
SCREW M3x6 BINDING W/PW+SW ZC
(Normal Washer)
E-RING M2.5 SUS
HEX BOLT M6x85 HALF THREAD BZC
PLAIN WASHER 6x13x1 BZC
NUT M6 U BZC
SCREW 3x8 BINDING TAPTITE S BZC
42
m
m
h
39
h
s
h
d
2
22
n
c
12
k
40
s
9
i
11
f
e
6
7
Sep. 2001
WIRING DIAGRAM
fig.wiring
WIRING 10P
CN2
SW2 BOARD ASSY
CN1
WIRING 8P
WIRING 11P WIRING 7P
RIBON 7P
CN3
CN11
CN8
CN7
SW3 BOARD
ASSY
SW1 BOARD ASSY
EXP BOARD
ASSY
CN4
WIRING 3P
CN6
RIBON 3P
SW4 BOARD
ASSY
CN10
CN5
ENC BOARD
ASSY
CN7
CN3
CN6
WIRING 2P
CN2
CN8
MAIN BOARD ASSY
8
CN4
GT-6(T)
PARTS LIST
fig.part1e
SAFETY PRECAUTIONS:
The parts marked
have
safety-related characteristics. Use
only listed parts for replacement.
SAFETY PRECAUTIONS:
The parts marked
have safety-related characteristics. Use only listed parts for replacement.
QTY
PART NUMBER
DESCRIPTION
MODEL NUMBER
Ex.
10
22575241
Sharp Key
C-20/50
15
2247017300
Knob (orange)
DAC-15D
Failure to completely fill the above items with correct number and description will result in delayed or even
undelivered replacement.
NOTE: The parts marked # are new. (initial parts)
fig.part2e
NOTE: Consider about the natural environment carefully before through the old lithium battery away when you exchange to the new one.
MB -> MAIN BOARD ASSY, SW -> SW SHEET ASSY
CASING
#
#
Q'ty
1
5
7
7
7
1
1
G2017150
G2357120
G2227301
G2357109
G2187602
G2017152
G2187533
BOTTOM COVER
FOOT
PEDAL ESCUTCHEON
PEDAL FOOT
SWITCH PEDAL
TOP COVER
VR PEDAL
01340412
12499175
22485303
G2477122
G247751001
G247751301
P R-KNOB
G S-BUTTON
D R-KNOB
R-KNOB
kEYTOP S BLACK WITH LENS
KEYTOP S WITHOUT LENS
G2567120
01676512
01780101
RUBBER SW
SDKLA1-B
SKQKAB
PUSH SWITCH
TACT SWITCH
13129778
SKQKAH
TACT SWITCH
SW1 on MB
SW9,SW10,SW11,SW12,SW13,SW14,SW15,
SW16,SW17,SW18,SW19,SW20,SW21,SW22
,SW23,SW24,SW25,SW26,SW27,SW28,SW2
9,SW30,SW31 on SW
SW1,SW2,SW3,SW4,SW5,SW6,SW7 on SW
JACK, EXT TERMINAL
13449155MF
13449150MF
01343723
13429825
13449728
HTJ-064-12I
HTJ-064-12D
YKC21-3117(ORANGE)
YKF51-5054 2PZ
HEC0740-010010
PHONE JACK (MONO)
PHONE JACK (STEREO)
RCA(PIN) JACK
MIDI CONNECTOR
ADAPTOR JACK
JK1,JK3,JK4,JK5,JK6 on MB
JK2,JK11 on MB
JK9 on MB
JK8 on MB
JK7 on MB
5
2
1
1
1
DISPLAY UNIT
#
#
F5029405
F5029412
LMC-SSC2K16DLNY-H01
A-552SR BW
LCD
7SEG LED
LED29 on SW
1
1
PCB ASSY
#
#
75D523M000
75D523S000
MAIN BOARD ASSY
SW SHEET ASSY
02676190
02231767
02451434
********
HD6412312VF
RA0A-101 (TC223C080AF-101)
AK4552VT
LH28F400BVE-BL85
01785178
02453389
02672378
15289109
15189261
00346445
15259769T0
15169596
01901623
TC9271FS
LC32V4265T-25
UPD431000AGW-A10
M5216FP-600D
M5218AFP-600E
NJM2100M(TE3)
TC74HC238AF(EL)
TC74HC4051AP
TC74LVXC3245FS
#
#
H=5
KNOB, BUTTON
SWITCH
#
SF-A BLK/LCG
S1H BLK 249-175
L BLK 248-303
for ALPHA-DIAL
for SW
for SW
1
1
1
15
19
4
1
1
23
7
1
1
IC
#
#
IC (CPU)
IC (DSP)
IC (AD/DA)
IC (FLASH MEMORY/
BLANK)
IC (DIF/TRANS MITTER)
IC (DRAM)
IC (SRAM)
IC (BIPOLAR OP AMP)
IC (BIPOLAR OP AMP)
IC (BIPOLAR OP AMP)
IC (CMOS)
IC (CMOS)
IC (CMOS)
IC21 on MB
IC20 on MB
IC3,IC8 on MB
IC26 on MB
1
1
2
1
IC19 on MB
IC24 on MB
IC22 on MB
IC5 on MB
IC6,IC4 on MB
IC7,IC2 on MB
IC29 on MB
IC4,IC5 on SW
IC14 on MB
1
1
1
1
2
2
1
2
1
9
Sep. 2001
IC
#
#
TRANSISTOR
#
#
#
#
#
01670745
02232834
15249121
02340756
00458034
15289106
02453056
02678945
15289124
02012789
02786678
02563467
TC74VHCT541AF
TC7SH04F(TE85L)
TC7W04F(TE12L)
TC7WH32FU(TE12L)
TC75S51F TE85R
M5238AFP-600C
BU2090F-E2
BU2090
PC-400
BA17805FP-E2
S-81233SGY
NJM2374AM-TE1
IC18 on MB
IC27,IC17 on MB
IC16 on MB
IC28 on MB
IC25 on MB
IC1 on MB
IC1 on SW
IC2,IC3,IC6 on SW
IC13 on MB
IC10 on MB
IC31 on MB
IC9 on MB
1
2
1
1
1
1
1
3
1
1
1
1
M51953AFP-600C
IC (CMOS)
IC (CMOS)
IC (CMOS)
IC (CMOS)
IC (OP AMP)
IC (JFET OP AMP)
IC (LED DRIVER)
IC (LED DRIVER)
IC (PHOTO COUPLER)
IC (REGULATOR)
IC (REGULATOR)
IC (SWITCHING REGULATOR)
IC (RESET)
15289123
IC15 on MB
1
F5309115
15309104
F5309601
F5309602
15319107
F5319601
F5319602
15329501
02340645
15129215
2SA1241-Y
2SA1586-GR(TE85R)
2SB1132
2SB1182
2SC4116-GR(TE85R)
2SD1664
2SD1758
DTA143EKA T146
RN1441-A(TE85L)
RN2207-TPE4
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
TRANSISTOR
DIGITAL TRANSISTOR
DIGITAL TRANSISTOR
DIGITAL TRANSISTOR
Q12 on MB
Q5,Q15 on MB
Q14 on MB
Q8 on MB
Q9 on MB
Q13 on MB
Q7 on MB
Q11 on MB
Q1,Q2,Q3,Q4,Q6 on MB
Q1,Q2,Q3,Q4 on SW
1
2
1
1
1
1
1
1
5
4
15019126
1SS133 T-77
SWITCHING DIODE
30
15339119T0
F5019209RT
02783023
F5339137
F5339310
F5029117
1SS352(TPH3)
1N4004
RB500V-40
SS14 VF=0.45V
RD10ESAB2
L-312LRD
SWITCHING DIODE
DIODE
DIODE
DIODE
ZENER DIODE
LED (RED)
1502928100
L-34HDSL
LED (RED)
F5029111
15339120T0
L-3WSRSGW-CC
1SS302(TE85R)
LED (RED/GREEN)
DIODE ARRAY
D1,D2,D3,D4,D5,D6,D7,D9,D10,D11,D12,D
13,D14,D15,D16,D17,D18,D19,D20,D21,D22
,D23,D24,D25,D26,D27,D28,D29,D30,D31on
SW
D1,D6,D8,D10,D11,D16,D17 on MB
D2,D4,D5,D12 on MB
D9 on MB
D3 on MB
D13,D14 on MB
LED9,LED10,LED11,LED12,LED13,LED14,
LED15,LED16,LED17,LED18,LED19,LED20
,LED21,LED22,LED23,LED24,LED25 on SW
LED1,LED2,LED3,LED4,LED5,LED6,LED7,
LED8 on SW
LED27,LED28 on SW
DA3,DA4 on MB
F3829254
13749775T0
13749789T0
47 OHM(2W)
SR25TRE 121 J
SR25TRE 471 J
CARBON RESISTOR
CARBON RESISTOR
CARBON RESISTOR
2
2
14
00566867
00567023
00567156
RPC05T 100 J
RPC05T 101 J
RPC05T 102 J
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
00567289
RPC05T 103 J
MTL.FILM RESISTOR
00567412
00567556
00567034
00567167
00567178
00567189
00567312
00566912
00567190
00567456
00567089
00567345
00567112
00567245
RPC05T 104 J
RPC05T 105 J
RPC05T 121 J
RPC05T 122 J
RPC05T 152 J
RPC05T 182 J
RPC05T 183 J
RPC05T 220 J
RPC05T 222 J
RPC05T 224 J
RPC05T 331 J
RPC05T 333 J
RPC05T 471 J
RPC05T 472 J
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
00567378
RPC05T 473 J
MTL.FILM RESISTOR
00567501
00567001
00567401
15399349
01905012
RPC05T 474 J
RPC05T 750 J
RPC05T 823 J
RPC10T 100 J 1/10W
RR0816P-123-D
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
MTL.FILM RESISTOR
R11,R14 on MB
R23,R21 on SW
R31,R32,R33,R34,R35,R36,R37,R38,R39,R40,
R41,R42,R43,R44 on SW
R9,R54,R109 on MB
R69,R108 on MB
R21,R22,R32,R33,R55,R56,R100,R104,R107,
R113 on MB
R2,R6,R12,R13,R16,R19,R24,R27,R30,R35,R
37,R38,R41,R45,R47,R48,R52,R61,R72,R76,R
80,R82,R102,R105,R119,R120,R130,R132,R13
3,R134,R137 on MB
R23,R34,R58,R59,R116 on MB
R39,R7 on MB
R67 on MB
R40,R1 on MB
R65,R142 on MB
R66 on MB
R42,R3 on MB
R77 on MB
R112,R68 on MB
R46 on MB
R25,R36,R74 on MB
R51,R57 on MB
R70 on MB
R85,R91,R94,R103,R106,R110,R111,R114,R1
15 on MB
R17,R20,R28,R31,R49,R60,R122,R123,R124
on MB
R84 on MB
R71 on MB
R26,R15 on MB
R139,R140,R141 on MB
R4,R8,R43,R50 on MB
DIODE
7
4
1
1
2
17
8
2
2
RESISTOR
10
3
2
10
31
5
2
1
2
2
1
2
1
2
1
3
2
1
9
9
1
1
2
3
4
GT-6(T)
RESISTOR
01909734
02122623
F5399911
F5399912
F5399919
F5399917
F5399913
F5399920
13749787T0
RR0816P-682-D
RR0816R-104-D
0.68 (1/2W)
1.8K (F-RANK)
1M(F-RANK)
22 (1/2W)
3K (F-RANK)
4.7M(F-RANK)
SR25TRE 391J 1/6W
MTL.FILM RESISTOR
MTL.FILM RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
RESISTOR
R10,R53 on MB
R5,R44 on MB
R62 on MB
R64 on MB
R81 on MB
R75 on MB
R63 on MB
R121 on MB
R1,R2,R3,R4,R5,R6,R7,R8,R9,R10,R11,R12,R
13,R14,R15,R16,R17,R18,R19,R20,R22,R24,R
25,R26,R27,R28,R29 on SW
RA1,RA2,RA4,RA6,RA12,RA15 on MB
RA11,RA14,RA18,RA19,RA28 on MB
RA5,RA3 on MB
2
2
1
1
1
1
1
1
27
F5419707
F5419705
F5419706
CRN34101J
CRN34103J
CRN34104J
RESISTOR ARRAY
RESISTOR ARRAY
RESISTOR ARRAY
POTENTIOMETER
F3279802
RD901-40-125F-B54-00D 50KB
VR2,VR4,VR6,VR7,VR8,VR9,VR10,VR11,V
R12,VR13,VR15,VR16 on SW
VR3,VR14 on SW
12
VR5 on SW
1
RK09K12A0 10KAx2
RK11K1140(10K SP B) 10Kx1
9M/M ROTARY POT. W/
CLICK
9M/M ROTARY POT. 6
CLICKS
9M/M ROTARY POT. 11
CLICKS
9M/M ROTARY POT.
11M/M ROTARY POT.
F3279804
RD901-40-125F-B54-06D 50KB
F3279803
RD901-40-125F-B54-11D 50KB
01676523
01016167
VR1 on MB
VR1 on SW
1
1
01674167
ECJ1VC1H100D
CERAMIC CAPACITOR
10
01674701
ECJ1VF1E104Z 0.1UF/16VK
CERAMIC CAPACITOR
01674356
00567823
00567945
01672412
13639550S0
13639546S0
ECUV1H151JCV
GRM39B102K50PT
GRM39B103K50PT
GRM39CH150J50PT
16MV100HW+T 100UF/16V
16MV10HW+T
CERAMIC CAPACITOR
CERAMIC CAPACITOR
CERAMIC CAPACITOR
CERAMIC CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
13639549S0
13639582S0
13639195S0
13639598
13639599S0
13609111
13639113S0
13519694
16MV47HW+T
35MV100HW+T
35MV2200HW(SME35VB2200)
35MV220HW+T
35MV470HW+T
50MVR33HW+T
6MV470HW
RPE132-901F104Z50
13549279M0
01128045
ECQ-M1H104JF3
ERZVA7V330
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
CHEMICAL CAPACITOR
MLT.LAY.CERAMIC CAPACITOR
POLYEST. CAPACITOR
VARISTOR CAPACITOR
C3,C6,C16,C25,C38,C41,C42,C145,C146,C15
4 on MB
C7,C9,C12,C14,C44,C48,C50,C53,C58,C59,C
77,C78,C79,C80,C83,C84,C86,C87,C88,C89,
C91,C92,C93,C95,C96,C98,C99,C100,C101,C
102,C103,C105,C106,C107,C108,C109,C110,
C111,C112,C114,C115,C118,C120,C123,C12
4,C125,C128,C131,C132,C134,C135,C136,C1
38,C139,C140,C141,C142,C147,C148,C149,C
159,C160,C162,C163 on MB
C23,C33,C62 on MB
C15,C24,C43,C54,C127 on MB
C1,C36,C129,C130 on MB
C121,C119 on MB
C21,C31,C66,C68,C69,C72,C157 on MB
C4,C8,C10,C11,C17,C18,C19,C20,C26,C27,C
28,C29,C30,C34,C39,C40,C46,C47,C49,C51,
C52,C94,C97,C104,C113,C116,C122,C126,C
133,C143,C150,C151,C152,C153 on MB
C13,C45,C76,C81 on MB
C64,C67,C70,C74 on MB
C56 on MB
C144 on MB
C65,C71 on MB
C90 on MB
C61,C35 on MB
C1,C2,C3,C4,C5 on SW
C5 on MB
C55 on MB
1
1
INDUCTOR, COIL, FILTER
13529246
12449386
#
F2449220
DSS310-91D223S-50ATL12-134
SBT-0180W
TSL1112SRA-471KR72
EMI FILTER
EMI FILTER
INDUCTOR
FL1,FL2 on MB
L15 on MB
L11 on MB
2
1
1
CRYSTAL, RESONATOR
02672401
#
00894023
SG-8002JC 67.7376MHZ PC
MA-406 20.000MHZ TE24
CRYSTAL
CRYSTAL
X1 on MB
X2 on MB
1
1
01905467
EVE GC1 F20 24B
ROTARY ENCODER
EN1 on SW
1
F3439160
F3439166
F3439179
F3439164
F3439165
F3439178
53015-0210
A2001WR2-11P
A2001WR2-7P
A2001WR2-8P
A2001WV2-10P P=2MM
A2541WV2-2A16NP
CONNECTOR
CONNECTOR
CONNECTOR
CONNECTOR
CONNECTOR
CONNECTOR
CN8 on MB
CN3 on MB
CN6 on MB
CN7 on MB
CN2 on MB
1
1
1
1
1
1
#
#
#
#
#
#
#
6
5
2
2
CAPACITOR
#
#
#
64
3
5
4
2
7
34
4
4
1
1
2
1
2
5
ENCODER
CONNECTOR
#
#
#
11
Sep. 2001
CONNECTOR
A2541WR2-2A16NP
A2001WR2-3P
CONNECTOR 16P
CONNECTOR 3P
CN1 on MB
CN4 on MB
1
1
16P L=160MM
3P L=40X5X5 MM P=2MM
7P P=2MM L=140MM
10P P=2MM L=120MM
11P P=2MM L=65MM
2P P=2MM L=150MM
3P P=2MM L=115MM
7P P=2MM L=115MM
8P P=2MM L=65MM
LCD WIRING
RIBBON CABLE
RIBBON CABLE
WIRING
WIRING
WIRING
WIRING
WIRING
WIRING
CN5,CN6 on SW
CN1,CN3 on SW
CN2 on SW
CN7 on SW
CN10 on SW
CN4 on SW
CN8 on SW
CN11 on SW
1
1
1
1
1
1
1
1
1
02563501
PT-10 (2280-T008)
PULSE TRANS
TR1 on MB
1
40342701
H5019130
SCREW M2.3x8
SCREW M3x6
H5019124
SCREW M3x6
40011312
40011278
40019123
40127689
SCREW 3x8
SCREW 3x8
SCREW 3x8
SCREW M3x10
H5029854
40342690
40016001
********
H5039520
H5039510
40015901
H5039126
H5039112
40016067
BOLT M3x12
HEX BOLT M6x85
LOCK NUT M6
M9 NUT
M9 NUT
NUT M9x12x2
E-RING
M9 WASHER
M9 WASHER
PLAIN WASHER 6x13x1
BINDING TAP TIGHT P ZC
PAN MACHINE W/SW+PW
ZC
PAN MACHINE W/
SW+SMALL PW ZC
BINDING TAPTITE P BZC
BINDING TAPTITE P FE ZC
BINDING TAPTITE S BZC
BINDING TAPTIGHT S TYPE
FE BZC
HEX BUTTON FENI
HALF THREAD BZC
U BZC
G2607214
G2237620
G2237616
G2617273
PACKING CASE
PAD L
PAD R
OUTER PACKING CASE
F3439121
F3439123
WIRING, CABLE
G3467180
#
G3477146
#
G3477156
#
G3467179
#
G3467177
#
G3467174
#
G3467175
#
G3467176
#
G3467178
TRANSFORMER
SCREWS
#
#
#
#
#
#
#
PACKING
#
#
#
#
MISCELLANEOUS
G2147118
G2147119
#
G2607215
22360712
G2357111
#
G2567119
#
G2567118
#
G2237112
#
G2237113
40016523
#
#
#
#
#
#
#
#
#
#
12
G2257203
H2369431
12569249S0
12189815
G2187904
G2217138
G2217139
G2217140
G2217143
G2217144
G2217142
G2217141
G2147117
G2567121
G2147116
H2369401
G2177103
G2357112
AC JACK HOLDER
BOLT HOLDER
COLOR SLEEVE
CORD HOOK
CUSHION R
DISPLAY COVER
ESCUTCHEON
GUARD
GUARD PLATE
INSULOK TIE 100M/M T-18R
JACK COVER
LED SPACER
LITHIUM BATTERY
LITHIUM BATTERY HOLDER
PEDAL HOLDER
PEDAL LABEL(1)
PEDAL LABEL(2)
PEDAL LABEL(3)
PEDAL LABEL(4)
PEDAL LABEL(CTL)
PEDAL LABEL(DOWN)
PEDAL LABEL(UP)
PIN STAY
RUBBER SW ESCUTCHEON
SHAFT STAY
SPACER 3X6X10
SUPPORT SPRING
VR PLATE
FENI
M2.5 SUS
1
5
10
3
20
18
3
(for ENCODER)
(for VR)
(for Phone Jack)
(for ENCODER)
(for Phone Jack)
BZC
6
1
1
1
15
7
1
1
7
2
1
1
1
1
on MB
236-712
(ABS,for PANEL)
<<1000 PCS ORDERING
PER>>
3-2
CR2032 220MAH/3V
BH-32
on MB
for SW
BT1 for MB
BT1 on MB
for SW
1
2
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
7
7
1
GT-6(T)
ACCESSORIES (STANDARD)
#
G6017297
#
G6017298
01786212
01786223
01786234
01786245
00905234
#
H5279511
40232389
OWNER’S MANUAL
OWNER’S MANUAL
AC ADAPTOR
AC ADAPTOR
AC ADAPTOR
AC ADAPTOR
EURO CONVERTER PLUG
READ ME FIRST
WARRANTY CARD
JAPANESE
ENGLISH
BRC-100T
BRC-120T
BRC-230T
BRC-240AT
ECP01-5A (PLUG for 230V)
JAPANESE/ENGLISH
(JAPAN ONLY)
1
1
1
1
1
1
1
1
1
13
Sep. 2001
IDENTIFYING THE VERSION
NUMBER
1.
Turn the power off.
2.
While pressing [NAME/NS/MASTER],[UTILITY] and [MANUAL]
button, turn on power.
3.
The version number is displayed.
fig.Load-3
At this stage, even more data can be received.
3.
Press [EXIT] button to quit Bulk Load.
After you press [EXIT] button, “Checking...” appears in the display,
indicating that the GT-6 is checking the received data.
fig.LCD1
When the check is completed, the Play screen returns to the display.
TEST MODE
*
TRANSMITTING / RECEIVING
DATA VIA MIDI
The GT-6 can use exclusive messages to set another GT-6 to the same settings,
or to transmit its settings to a device such as a sequencer for storage.
The process of transmitting such data is called bulk dump, and the process of
receiving such data is called bulk load.
Note: When user data is present, always back it up on the sequencer (MC-80,
etc.) before repair.
(Refer to “Saving data” and “Loading data” for the user data storage
procedures).
Individual inspection items
1.DSP Check
2.Display
3.LCD Contrast
4.Switch
5.VR Check
BULK DUMP
1.
Press [UTILITY] button, then press PARAMETER [<] [>] button so that
“Bulk Dump” is displayed.
fig.Dump-1
6.EXP PEDAL
7.Battery
8.MIDI IN/OUT
9.OUTPUT D/A
10.EXT OD/DS
11.INPUT A/D
12.DSP INTO
13.Noise (IN -> OUT)
14.Noise (EXT)
2.
Press PARAMETER [<] [>] button to move the cursor, and rotate the
[PATCH/VALUE] dial to select the start and end of the data to be
transmitted.
3.
When the data to be sent has been determined, press [WRITE] button.
The data is transmitted.
fig.Dump-2
When the transmission is completed, the screen prior to transmission
returns to the display.
4.
Press [EXIT] button to return to the Play screen.
15.Calibrete EXP
16.Factory Load
Required items
•
Expression Pedal (Roland EV-5)
•
MIDI Cable
•
Noise Meter
•
Oscilloscope
•
Oscillator
•
Equipment with digital input
•
Empty plug
How to enter test mode:
•
Turn on the unit while pressing the [DELAY] and [DELAY TAP] buttons
simultaneously.
BULK LOAD
1.
Press [UTILITY] button, then press PARAMETER [<] [>] button so that
“Bulk Load” is displayed.
Starting from “1.DSP Check”.
The ROM version and the checksum will be displayed first.
Proceed to “1.DSP Check” by pressing the [EXIT] button.
fig.LCD1
fig.Load-1
•
2.
Transmit the data from the external MIDI device.
The following appears in the display when the GT-6 receives the data.
fig.Load-2
The following appears in the display when the GT-6 finishes receiving
the data.
14
Starting from “9.OUTPUT D/A”.
Turn on the unit while pressing the [CHORUS] and [REVERB] buttons
simultaneously.
“1.DSP Check” result is displayed first, then it proceeds to “9.OUTPUT
D/A”.
GT-6(T)
1.
DSP Check
[2] The pedal switch group and expression switch inspection
fig.LCD2
[BANK DOWN] -> [BANK UP] -> [EXP PEDAL SW] -> [CTL PEDAL] ->
[PEDAL 4] -> [PEDAL 3] -> [PEDAL 2] -> [PEDAL 1]
DSP (IC20) and DRAM (IC24) are automatically checked and their results
displayed.
[3] 7 seg LED
Confirm that the 7 seg LED segments go out one by one each time
[WAH] is pressed.
If an error occurs, its contents will be displayed, and if no problems exist,
“OK” is displayed.
After the inspection completes, it will automatically proceed to the next
inspection.
2.
Display
fig.LCD3
All of the LCD and LED segments will be on.
Press the [EXIT] button to proceed to the next inspection.
3.
LCD Contrast
fig.LCD4
Turn the [VALUE] encoder knob in the following order and confirm that the
LCD contrast changes.
Pressing the [WAH] switch 14 times turns all the segments off .
After the [3] 7seg LED inspection completes, it will automatically proceed to
the next inspection.
5.
VR Check
fig.LCD7
Turn all the VRs anti-clockwise all the way (set to MIN position).
The names of the VRs to be inspected are displayed on the lower part of the
LCD.
Turn the displayed VR.
[PATCH LEVEL]->[SPEAKER]->[PRE LEVEL]->[PRE TREBLE]->[PRE
MIDDLE]->[PRE BASS]->[PRE GAIN]->[PRE TYPE]->[OD/DS TYPE]->[OD/
DS DRIVE]->[OD/DS LEVEL]->[DELAY FEEDBACK]->[DELAY LEVEL]>[CHORUS]->[REVERB]
1) Turning the knob anti-clockwise dims the contrast.
fig.LCD5
1) Without click - the 7 seg LED segments come on from the bottom according
to the positions of the VR knobs, except for the “SPEAKER”, “PREAMP/
SPEAKER TYPE” and “OVERDRIVE/DISTORTION TYPE” VRs.
To proceed to the next VR inspection, turn the knob all the way to the right (
[MIN] -> [MAX] ).
2) Turning the knob clockwise brightens the contrast.
fig.LCD4
2) With click - the numbers are displayed for the 7 seg LED segments
according to the clicked position, except for the “SPEAKER”, “PREAMP/
SPEAKER TYPE” and “OVERDRIVE/DISTORTION TYPE” VRs.
“SPEAKER” : [1x10] -> [ORIGINAL]
Change the LCD contrast from ‘15 -> 0 -> 15’, and it will automatically proceed
to the next inspection.
4.
Switch
“PREAMP/SPEAKER TYPE” : [JC CLEAN] -> [CUSTOM]
“OVERDRIVE/DISTORTION TYPE” : [OD/BOOST] -> [CUSTOM/
EXTERNAL]
fig.LCD6
To proceed to the next VR inspection, turn the knob all the way to the right (
[MIN] -> [MAX] ).
The button names to be inspected are displayed on the lower part of the LCD.
Press the displayed button switches.
After the [REVERB LEVEL] VR inspection completes, it will automatically
proceed to the next inspection.
“Wrong switch!” is displayed when a wrong button is pressed.
6.
Also, for buttons with LEDs confirm that:
fig.LCD8
EXP PEDAL
1) All the LEDs that are on are red prior to pressing them.
2) The LEDs go out after the buttons are pressed.
However, for [PREAMP/SPEAKER TYPE VARIATION] and [OD/DS
TYPE VARIATION], the color changes from red to green.
Confirm the following two points.
Press the switches in the following order.
Confirm the changes on the EXP pedal of this unit and the EXP pedal (SUB
EXP PEDAL) connected to the [SUB EXP PEDAL/SUB CTL 1,2] jack.
Connect the EV-5 to the [SUB EXP PEDAL/SUB CTL 1,2] jack.
The EXP pedal of this unit is inspected first, then the SUB EXP PEDAL.
[1] Effect select button/Edit button group inspection Press according to the
LCD display.
1) Bringing the pedal’s tilt to the center (middle value) will display “***” in the
center display.
fig.LCD9
[PREAMP/SPEAKER] -> [PREAMP/SPEAKER TYPE VARIATION]->[OD/
DS] -> [OD/DS TYPE VARIATION] -> [DELAY] -> [DELAY TAP] >[CHORUS] -> [REVERB] -> [FX-2] -> [FX-1] -> [EQ] -> [WAH] ->
[PARAMETER (<)] -> [EXIT] -> [PEDAL ASSIGN] -> [NAME/NS/MASTER] > [UTILITY] -> [OUTPUT SELECT] -> [WRITE] -> [PARAMETER (<)] -> [EZ
TONE] -> [TUNER/BYPASS] -> [MANUAL]
or
15
Sep. 2001
Confirm these three points.
fig.LCD13
A) Using an oscilloscope, observe that a short wave is obtained from OUTPUT
.
B) Since output mute is automatically made ‘On/Off’, make sure that it is on.
C) Confirm that the level changes when the OUTPUT knob is turned.
2) Pressing further (maximum value) displays “***” on the right display.
fig.LCD20
fig.LCD10
or
fig.LCD14
Oscilloscope : 1.0 V/DIV, 0.5 ms/DIV
Mute = Off Mute = On
fig.1
3) Finally, returning the pedal forward (minimum value) displays “***” on the
left display, and the inspection for that pedal is complete.
fig.LCD11
or
fig.LCD15
After the EXP PEDAL inspection completes, it will automatically proceed to
the next inspection.
fig.2
7.
Battery
fig.LCD16
The voltage of the memory backup battery is displayed.
To proceed to the next inspection, press the [EXIT] button.
8.
MIDI IN/OUT
fig.LCD18
Connect the MIDI IN connector and the MIDI OUT connector with a MIDI
cable.
“No Connect” is displayed if the connectors are not connected with a MIDI
cable.
If the connectors are properly connected, “Verify OK !” is displayed.
After the MIDI IN/OUT inspection completes, it will automatically proceed to
the next inspection.
fig.LCD17
9.
OUTPUT D/A
Note : Check both L(MONO) and R.
Also, when the OUTPUT jack is used for a single channel, the L and R
signals will be internally mixed, therefore, empty plugs must be inserted
in the R channel for L(MONO) channel measurement and in the
L(MONO) channel for R channel measurement, respectively.
fig.LCD19
16
D) Confirm that a same waveform as that from OUTPUT is obtained from
Phones.
E) Confirm that a short wave is obtained from Send and that mute is effective.
Oscilloscope : 1.0 V/DIV, 0.5 ms/DIV
Mute = Off Mute = On
GT-6(T)
fig.10ext-2e
fig.3
DSP
D/A
(Signal source)
SEND
DSP
RETURN
A/D
(Cut off)
D/A
OUTPUT
(Rectangular waveform)
Note: Check both L(MONO) and R.
Also, when the OUTPUT jack is used for a single channel, the L and R signals
will be internally mixed, therefore, empty plugs must be inserted in the R
channel for L(MONO) channel measurement and in the L(MONO) channel for
R channel measurement, respectively.
fig.4
OUTPUT Level Control : MAX
Oscilloscope : 1.0 V/DIV, 0.5 ms/DIV
Insert an empty plug in RETURN
fig.4
To proceed to the next inspection, press the buttons in [EXIT] ->
[PARAMETER (>)] sequence.
10. EXT OD/DS
fig.LCD21
fig.2
Confirm the following two points.
A) Using an oscilloscope, observe that a short wave is obtained from OUTPUT.
fig.10ext-1e
DSP
D/A
(Signal source)
SEND
DSP
RETURN
A/D
D/A
OUTPUT
(Rectangular waveform)
To proeed to the next inspection, press the [EXIT] button.
B) Insert an open plug in the RETURN jack and confirm that there is no output.
17
Sep. 2001
11. INPUT A/D
fig.LCD22
fig.13noise-e
DSP
A/D
INPUT
Input a short wave, and observe the output waveform using an oscilloscope.
Note: Check both L(MONO) and R.
Also, when the OUTPUT jack is used for a single channel, the L and R signals
will be internally mixed, therefore, empty plugs must be inserted in the R
channel for L(MONO) channel measurement and in the L(MONO) channel for
R channel measurement, respectively.
D/A
OUTPUT
(Connect noise meter)
To proceed to the next inspection, press the [EXIT] button.
14. Noise (EXT)
INPUT : Rectangular Waveform, 400 Hz, 40 mVp-p
fig.LCD25
OUTPUT Level Control : MAX
Oscilloscope : 1.0 V/DIV, 0.5 ms/DIV
fig.5
Note: Check both L(MONO) and R.
Also, when the OUTPUT jack is used for a single channel, the L and R signals
will be internally mixed, therefore an empty plug must be inserted in the R
channel for L(MONO) channel measurement, and an empty plug must be
inserted in the L(MONO) channel for R channel measurement.
OUTPUT Level Control: MAX
Confirm that the residual noise is -64 dBm (JIS-A) or lower.
fig.14noise-e
DSP
A/D
INPUT
D/A
SEND
A/D
RETURN
To proceed to the next inspection, press the [EXIT] button.
12. DSP Pitch interruption signal
fig.LCD23
DSP
Confirm the pitch interruption signal generated from the DSP’s internal
oscillation.
If an error occurs, its contents will be displayed.
If no error occurs, it will automatically proceed to the next inspection.
13. Noise (IN -> OUT)
D/A
OUTPUT
(Connect noise meter)
fig.LCD24
To proceed to the next inspection, press the [EXIT] button.
Note: Check both L(MONO) and R.
Also, when the OUTPUT jack is used for a single channel, the L and R signals
will be internally mixed, therefore, empty plugs must be inserted in the R
channel for L(MONO) channel measurement and in the L(MONO) channel for
R channel measurement, respectively.
OUTPUT Level Control: MAX
Confirm that the residual noise is -74 dBm (JIS-A) or lower.
18
GT-6(T)
15. Calibrate EXP
fig.LCD26
1) The maximum and minimum values of the EXP pedal are set up.
RESTORING THE FACTORY
SETTINGS (FACTORY RESET)
1.
Turn off the power.
2.
While holding down PREAMP/SPEAKER On/Off button and [TYPE
VARIATION], turn on the power.
fig.LCD27
The Factory Reset range setting screen appears in the display.
fig.FR-1e
fig.arrow
The area of data you wish to factory reset.
* To cancel Factory Reset, press [EXIT] button.
3.
fig.LCD26
Press PARAMETER [<] [>] button to move the cursor, and rotate the
PATCH/VALUE dial to specify the range of settings you want to restore
to factory settings.
System:
System parameters, Harmonist scales, Auto Riff phrases, and Preamp,
Overdrive/Distortion, and Wah Custom Edit parameter settings
2) To set up the minimum value, press the [WRITE] button.
fig.LCD28
#1-1-#35-4:
Settings for Patch Number 1-1 through 35-4
fig.arrow
4.
If you want to proceed with the factory reset, press [ENTER] button.
The specified range of data will be returned, and return to the Play
screen.
fig.LCD26
3) Fully press the EXP pedal and release your hands.
4) To set up the maximum value, press the [WRITE] button.
HOW TO UPDATE SYSTEM
SOFTWARE
Required items
•
Sequencer (MC-80, etc.)
•
MIDI cable
When the calibration setup is completed, will automatically proceed to the
next inspection.
•
Update Disk (#17041087)
16. Factory load
*
Notes
fig.LCD29
Do not turn the GT-6 unit’s power off while writing the system software.
The GT-6 will not operate because the system will not be properly
written into the flash ROM.
*
Notes
After updating, execute “TEST:15.Calibrate EXP” and “TEST:16.Factory
Load” while in the test mode.
To overwrite the factory preset data, press the [WRITE] button three times.
fig.LCD30
The System Update Via SMF
The GT-6 system is supplied in standard MIDI file (SMF) format.
The following SMF data is stored on the disk. Starting with GT6_01.mid,
transfer all data to the GT-6 in the respective order.
This ends test mode.
When the following displayed appears, turn off the power.
17. DIGITAL OUT
After the test mode is completed, connect external equipment that has a
DIGITAL IN terminal to DIGITAL OUT, and confirm that the sound is
properly output from DIGITAL OUT of the GT-6.
GT-6 System Ver.*.** SMF Disk : GT6_01.mid, GT6_02.mid, GT6_03.mid,
GT6_04.mid, GT6_05.mid, GT6_06.mid, GT6_07.mid, GT6_08.mid
Update the GT-6’s system in the following
order.
1.
Using a MIDI cable, connect the MIDI OUT connector of the sequencer to
the MIDI IN connector of the GT-6.
2.
Turn the GT-6’s power on while pressing the [FX-2] and [PEDAL
ASSIGN] and [UTILITY] buttons simultaneously.
The unit is in reception standby status if the LCD displays “Flash Update
ALL BLOCK” then displays “Waiting SMF Data [GT6_01.mid]”.
19
Sep. 2001
3.
The GT6_01.mid SMF data will be sent from the sequencer to the GT-6.
When the GT-6 receives the MIDI signal, the write address and the
checksum will be displayed on the LCD.
When all the GT6_01.mid SMF data has been received, the GT-6 writes
the received data to the flash ROM.
When it finishes writing, the GT-6 displays “Waiting SMF Data
[GT6_02.mid]” on the LCD display.
Next, the GT6_02.mid SMF data is sent from the sequencer.
When the sequencer receives the MIDI signal, the write address and the
checksum will be displayed on the LCD.
Play the SMF data in the manner stated above one by one in the
respective sequence up to GT6_08.mid.
3-1.GT-6 : “Waiting SMF Data [GT6_01.mid]” -> MC-80 : GT6_01.mid play
3-2.GT-6 : “Waiting SMF Data [GT6_02.mid]” -> MC-80 : GT6_02.mid play
3-3.GT-6 : “Waiting SMF Data [GT6_03.mid]” -> MC-80 : GT6_03.mid play
3-4.GT-6 : “Waiting SMF Data [GT6_04.mid]” -> MC-80 : GT6_04.mid play
3-5.GT-6 : “Waiting SMF Data [GT6_05.mid]” -> MC-80 : GT6_05.mid play
3-6.GT-6 : “Waiting SMF Data [GT6_06.mid]” -> MC-80 : GT6_06.mid play
3-7.GT-6 : “Waiting SMF Data [GT6_07.mid]” -> MC-80 : GT6_07.mid play
3-8.GT-6 : “Waiting SMF Data [GT6_08.mid]” -> MC-80 : GT6_08.mid play
4.
After the GT-6 receives all the SMF data, it will display the checksum (4digit number) of the system software on the LCD display, so confirm it.
5.
Execute “TEST:15.Calibrate EXP” and “TEST:16.Factory Load” while in
the test mode.
Updating is now completed.
20
GT-6(T)
BLOCK DIAGRAM
fig.block
CN8
MIDI OUT IN
JK8
SUB EXP PEDAL
SUB CTL 1,2
IC1b
IC2b
INPUT
JK2
IC2a
PHONES
JK3
IC5a
VR1a IC4a
OUTPUT L
IC3
CODEC
AK4552
SW4 BOARD ASSY
CARBON SW
ENC BOARD
ENCODER
CN5
JK11
JK1
CN10
IC21 CPU
H8S/2318
CN4
CN4
EXP BOARD ASSY
PEDAL VR
CN7
CN11
CN6
CN3
CN8
CN7
SW 1 BOARD ASSY
PANEL SW,LED
CN2
CN2
SW 2 BOARD ASSY
PEDAL SW,LED
CN1
LCD UNIT
CN6
CN11
OUTPUT R
JK4
EXT OD/DS
RETURN
EXT OD/DS
SEND
JK5
JK6
IC5b
IC6a
IC20 DSP
IC7a
IC7b
IC6b
R71
DIGITAL OUT
IC22
SRAM 1M
VR1b
IC4b
OUTPUT
VOLUME
TR1
IC8
CODEC
AK4552
IC17
IC19
TC9271FS
CN3
SW 3 BOARD ASSY
PEDAL SW,LED
IC26
Flash 4M
IC24
DRAM 4M
MAIN BOARD ASSY
21
Sep. 2001
GT-6(T)
CIRCUIT BOARD (MAIN)
fig.wiring
View from components side
22
23
Sep. 2001
GT-6(T)
CIRCUIT BOARD (MAIN)
fig.sk949-c
View from foil side
24
25
Sep. 2001
GT-6(T)
CIRCUIT DIAGRAM (MAIN 1/2)
fig.sk961-c
R99
N.I.U
66
63
60
59
D
R100
1K
D +3. 3
R131
N.I.U.
R104
1K
IC27
TC7SH04F
D +3. 3
D
8
7
6
5
ENCODER
1
2
3
4
A2001WR2-7P
4
AD_C
AD_B
AD_A
5
3
XA
C141
0.1
D
0.1
0.1
C100
0.1
C103
0.1
C106
0.1
C108
0.1
C110
0.1
1
11
26
37
51
73
90
101
109
120
140
1
-
C136
0.1
10/16
0.1
C99
0.1
C102
0.1
C101 0.1
D
0.1
C107
0.1
C109
0.1
D
7
4
6
DIF_DATA
LRCK
BCK
D +3. 3
D
24
23
22
1
2
D +3. 3
X1
4
D
C120
0.1
D +3. 3
26
11
28
47
14
12
15
CE
WE
OE
BYTE
WP
RP
RY/BY
4M Flash
DQ14
DQ13
DQ12
DQ11
DQ10
DQ9
DQ8
DQ7
DQ6
DQ5
DQ4
DQ3
DQ2
DQ1
DQ0
NC
NC
NC
VPP
VCC
9
10
16
13
37
GND
OUT
6
D +3. 3
R130
10K
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
TA19 Testpin
TA18 Testpin
TA17 Testpin
TA16 Testpin
TA15 Testpin
TA14 Testpin
TA13 Testpin
TA12 Testpin
TA11 Testpin
TA10 Testpin
TA9 Testpin
TA8 Testpin
TA7 Testpin
TA6 Testpin
TA5 Testpin
TA4 Testpin
TA3 Testpin
TA2 Testpin
TA1 Testpin
TA0 Testpin
CS0 1
RD 1
CS41
TCS0 Testpin
TRD Testpin
TCS4 Testpin
R83
N.I.U.
R86
R87
DADATA
R89
D15
D14
D13
D12
D11
D10
D9
D8
RES
MCK
10
5
26
13
14
DATA
LRCK
BCK
BCK
MCK
137
N.I.U 138
D +3. 3
R98
139
N.I.U 141
D +3. 3
27
46
D
D
C133
10/16
Q11
DTA143EKA
D
1
1
1
1
1
1
1
1
D15
D14
D13
D12
D11
D10
D9
D8
D +3. 3
DO2
DO1
BLOCK
FS2
FS1
UBDA
VLDY
CKA2
CKA1
FR32
LBIT
IS2
IS1
COPY
NC
NC
CKS
XI
LRS
EMPH
N.I.U
1
12
11
29
28
D +3. 3
21
20
19
18
3
9
15
RESET
M2
M1
R79
17
16
D
MUTE
142
143
D
28
27
25
24
23
21
20
19
17
16
50
49
48
47
46
45
43
42
41
40
39
38
35
34
33
32
10
9
8
7
5
4
3
2
118
119
N.I.U 121
122
N.I.U 123
125
126
N.I.U 127
R97
IC19
TC9271FS
CTG3
CTG2
CTG1
110
111
112
113
114
115
117
D
30
R96
R93
LRCK
A19
TD15
TD14
TD13
TD12
TD11
TD10
TD9
TD8
54
65
66
67
68
69
70
71
129
130
N.I.U 132
133
N.I.U
134
N.I.U 135
R92
ADDATB
ADDATA
IC24
28
27
26
25
24
21
20
19
18
13
14
17
32
ED7
ED6
ED5
ED4
ED3
ED2
ED1
ED0
16
30
31
15
29
D
A8
A7
A6
A5
A4
A3
A2
A1
A0
NC
NC
NC
NC
RAS
UCAS
LCAS
WE
OE
I/O16
I/O15
I/O14
I/O13
I/O12
I/O11
I/O10
I/O9
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
VCC
VCC
VCC
VSS
VSS
VSS
43
42
41
40
38
37
36
35
10
9
8
7
5
4
3
2
RA11
CRN34103J
1
2
3
4
1
2
3
4
ED7
ED6
ED5
ED4
ED3
ED2
ED1
ED0
D +3. 3
22
6
1
D +3. 3
C94
10/16
44
39
23
LC32V4265T-25-TLM
D +3. 3
8
7
6
5
8
7
6
5
RA14
CRN34103J
D
D
C123 C124 C125
0.1
0.1
0.1
12
13
14
76
131
31
1
D
N.I.U.
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
3
D
LH28F400BVE-BL85
Testpin
Testpin
Testpin
Testpin
Testpin
Testpin
Testpin
Testpin
1
D SG-8002JC(67.7376MHz)
DADATB
C126
10/16
C131
0.1
GND
GND
OE
DIF_DATA
D +3. 3
43
41
39
36
34
32
30
44
42
40
38
35
33
31
29
VDD
BT1
CR2032/383-009
2
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
A-1/DQ15
25
27
52
53
74
75
D +3. 3
10k
R121
4.7M(F)
63
62
61
60
58
57
56
77
78
79
D
IC26
17
48
1
2
3
4
5
6
7
8
18
19
20
21
22
23
24
25
45
99
100
102
103
104
105
106
107
INT0
1SS352
R82
R81
1M(F)
D
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
D15
D14
D13
D12
D11
D10
D9
D8
10
D +3. 3
C97
C96
C98
5
D
0.1
30
0.1
C95
VDD
C92
D
2
VSS
8
7
6
5
1
2
3
4
4
N.I.U
D
C86
0.1
3
8
7
6
5
8
7
6
5
1
2
3
4
10
20
3
2
VCCA
VCCB
GND
GND
GND
11
12
13
VCC
20
3
IC25A
TC75S51F
D
IC28B
TC7WH32FU
R107
1K
+
81
82
83
84
86
87
88
89
91
92
94
95
96
97
D10
D
R101
D +3. 3
R106
4.7K
C118
0.1
16
VSS
4
D
D
AD1
AD0
32
UPD431000AGW-A10
+
1
2
R102
10k
2
C135
0.1
D9
RB500V-40
1
NC
R80 10k
IC25B
TC75S51F
A19
D +3. 3
D15
N.I.U.
D +3. 3
LCD_DIR
D +3. 3
D
C139
0.1
ENC_B
ENC_A
1
2
3
4
1
24
AD_C
1
2
VSS
VSS
90
9
HD6412312VF
XB
D
RA25
N.I.U.
R78
GND
10K
D15
D14
D13
D12
D11
D10
D9
D8
D +3. 3
VDD
BATT
D15
D14
D13
D12
D11
D10
D9
D8
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
LCD1
LCD0
21
20
19
18
17
15
14
13
I/O8
I/O7
I/O6
I/O5
I/O4
I/O3
I/O2
I/O1
CE2
CE1
R/W
OE
D +3. 3
R119
N.I.U
N.I.U
77
78
96
97
98
99
IC17
TC7SH04F
D
JK9B
YKC21-3117
A
D
D +3. 3
2
100
VSS
VSS
C138
26
N.I.U
8
7
6
5
8 N.I.U
7
6
5
8 N.I.U
7
6
5
8 N.I.U
7
6
5
N.I.U
CN5
2.54mm
D +3. 3
R103
4.7K
PANEL VR A/D
VCC
MD2
MD1
MD0
D
D
D
N.I.U
64
D
D
1
2
3
4
5
6
7
R88
R90
N.I.U
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
30
22
29
24
D +3. 3
PF1/BACK/IRQ1/CS5
PF0/BREQ/IREQ0/CS4
PG1/CS3/IRQ7/CS6
PG2/CS2
PG3/CS1/CS7
PG4/CS0
STBY
C134
0.1
0.1
71
72
73
74
75
76
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
N.I.U
2
31
3
28
4
25
23
26
27
5
6
7
8
9
10
11
12
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
WDTOVF(FWE*)
C130
0.01
A2001WR2-3P
67
42
RES
D +3. 3
C129
0.01
D +3. 3
1
2
3
PF7/PHAI
PF6/AS
PF5/RD
PF4/HWR
PF3/LWR/IRQ3
PF2/WAIT/IRQ2
32
31
30
29
28
27
26
25
24
23
22
21
19
18
17
16
A16
A15
A14
N.I.U
2 1
C85
N.I.U.
6
15
22
29
36
44
55
64
72
80
85
98
108
116
124
136
144
62
C143 C115
10/16 0.1
C128
0.1
AVCC
VREF
P47/AN7/DA1
P46/AN6/DA0
P45/AN5
P44/AN4
P43/AN3
P42/AN2
P41/AN1
P40/AN0
AVSS
70
3
R94
4.7K
XTAL
D
R95
N.I.U
D
D
CN4
BATT
1SS302
1
D
R111
4.7K
79
80
88
87
86
85
84
83
82
81
89
EXTAL
51
DA4
D
R109 10
NMI
VSS
D +3. 3
2
R91
4.7k
HTJ-064-12D
D15
D14
D13
D12
D11
D10
D9
D8
D7/PE7
D6/PE6
D5/PE5
D4/PE4
D3/PE3
D2/PE2
D1/PE1
D0/PE0
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
8
7
6
5
1
R74
330
D
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
2
68
CONTRAST
C127
0.001
D +3. 3
P27/TIOCB5/TMO1
P26/TIOCA5/TMO0
P25/TIOCB4/TMCI1
P24/TIOCA4/TMRI1
P23/TIOCD3/TMCI0
P22/TIOCC3/TMRI0
P21/TIOCB3
P20/TIOCA3
1
2
3
4
RA7 1
2
3
4
RA8 1
2
3
4
RA9 1
2
3
4
RA10 1
2
3
4
RA13
1
2
3
4
RA16 1
2
3
4
RA17 1
2
3
4
RA20 1
2
3
4
RA21
4
JK9A
YKC21-3117
3
4
65
69
D +3. 3
EXP/CTL 1, 2
PG0/ADTRG/IRQ6
4
3
2
1
55
54
53
52
50
49
48
47
46
45
44
43
41
40
39
38
37
36
35
34
10K
10K
10K
6
D
C105
IC22
5
R85
4.7K
P13/A23/TIOCD0/TCLKB
P12/A22/TIOCC0/TCLKA
P11/A21/TIOCB0
P10/A20/TIOCA0
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
D +3. 3
C119
X2
15P
MA-406 (20MHz)
R134
R133
R132
C83
L15
SBT-0180W
4
3 2
2
8
1
0.1
R71
75
C84
0.1
D
RA28 CRN34103J
1
8
2
7
A19
3
6
A18
4
5
A17
3
C114
P17/TIOCB2/TCLKD
P16/TIOCA2
P15/TIOCB1/TCLKC
P14/TIOCA1
VSS
D
3
R110
4.7K
10K
IC20
RA0A-101 (TC223C080AF-101)
C132
0.1
94
93
92
91
61
58
57
56
D
MUTE
G2
G1
1
95
AD_A
CRN34101J
5
6
7
8
8
7
6
5
CRN34101J
MUTE
1SS302
1
CONTRAST
470
1
2
0.1 3
1
C93
2
0.1
D
33
DA3
Q9
2SC4116GR
R72
C122
10/16
RA4
CRN34101J
1
8
2
7
3
6
4
5
DIGITAL OUT
47/16
D +3. 3
D
RA3
CRN34104J
5
0.1
C112
IRQ5/SCK1/P35
IRQ4/SCK0/P34
RXD1/P33
RXD0/P32
TXD1/P31
TXD0/P30
20
D +3. 3
2
R84
470k
D
11
12
13
14
15
16
17
18
1
1
2
3
4
1
2
3
4
RA19
CRN34103J
D +5
C81
R70
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
C89
0.1
2
INT0
1
D
D +5
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
10
8
7
6
5
VCC
N.I.U.
5
4
6
C121 15P
TO CN4
on EXP BOARD
R118
R117
3
2
1
15
14
13
12
11
10
D
D +3. 3
TO CN8
on SW1 BOARD
C111
10K
G2B
G2A
G1
Data Bit 7
Data Bit 6
Data Bit 5
Data Bit 4
Data Bit 3
Data Bit 2
Data Bit 1
Data Bit 0
Enable signal
Read/Write
Resister Select
Contrast
D
R120
VCC
C
B
A
VCC
IC21
N.I.U.
C142
0.1
16
8
7
6
5
8
7
6
5
RA18
CRN34103J
D
GND
RA12
4
3
2
1
1
2
3
4
RA15
SW DATA
SW_DATA5
SW_DATA4
SW_DATA3
SW_DATA2
SW_DATA1
SW_DATA0
1
2
3
4
5
6
7
8
C113
10/16
8
TO CN11
on SW1 BOARD
TO CN7
on SW1 BOARD
SW_SCAN3
SW_SCAN2
SW_SCAN1
SW_SCAN0
Y7
Y6
Y5
Y4
Y3
Y2
Y1
Y0
IC29
TC74HC238AF
SW SCAN
CN6
1
1
2
3
4
R116
100k
D
7
9
10
11
12
13
14
15
8
7
6
5
8
7
6
5
IC14
TC74LVXC3245FS
Y8
Y7
Y6
Y5
Y4
Y3
Y2
Y1
D +3. 3
D +3. 3
ENC_B
ENC_A
CN3
A2001WR2-11P
1
2
3
RA22
N.I.U.
D +3. 3
D +3. 3
D
RA2
CRN34101J
D +5 C91 0.1
IC18
TC74VHCT541F
9
A8
8
A7
7
A6
6
D
A5
5
A4
4
A3
3
A2
2
A1
19
1
AD_B
D +3. 3
LED_DATA4
LED_DATA2
LED_DATA1
LED_CLOCK
2
3
1
D
D
D
JK11
C140
0.1
RA1
CRN34101J
1
2
3
4
1
2
3
4
D +3. 3
CN1
A2541WR2-2A16NP
D
D +3. 3
RA6
CRN34101J
1
8
2
7
3
6
4
5
C116
10/16
1
2
3
4
5
6
7
8
9
10
11
IC28C
TC7WH32FU
D
TR1
PT-10 (13:4)
TO LCD
C77
0.1
14
15
16
17
18
19
20
21
B8
B7
B6
B5
B4
B3
B2
B1
RESET
D
R108 100
1
2
3
4
5
6
7
8
9
10
11
C90
0.33/50
RESET
RA5
CRN34104J
LED_DATA3
LED_CLOCK
SW_SCAN3
SW_SCAN2
SW_SCAN1
SW_SCAN0
SW_DATA7
SW_DATA6
1
2
3
4
5
6
7
8
1SS352
D +3. 3
D +3. 3
1
2
3
4
5
6
7
8
D +3. 3
D
D
CN7
A2001WR2-8P
D8
IC15
M51953AFP
N.I.U
LED DATA
G
DIR
NC
D
1
DA5
LCD_DIR
A8
A7
A6
A5
A4
A3
A2
A1
2
6
GND
1
2
3
8
5
D +5
18
59
93
128
8
2
1
4
NC
NC
NC
NC
DLY
22
2
23
8
7
6
5
1
2
3
4
5
6
7
8
9
10
IC16B
TC7W04F
D +5
RA24
N.I.U.
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
LCD1
LCD0
3
D11
1SS352
VCC
C88
0.1
3
D
2
R129
N.I.U.
LCD7
LCD6
LCD5
LCD4
LCD3
LCD2
LCD1
LCD0
D
10
9
8
7
6
5
4
3
1
2
3
4
1
2
3
4
5
6
7
8
9
10
2
C104
10/16
CN2
A2001WR2-10P
5
3
1
D +3. 3
D +5
7
IC16A
TC7W04F
D +3. 3
D +3. 3
4
3
2
1
4
3
2
1
4
1
2
SW_SCNA3
1
2
2
D +3. 3
22
R136 N.I.U
SW_DATA7
TO CN10
on SW4 BOARD
TO CN2
on SW2 BOARD
CN8
53015-0210
1
R76
10k
1
IC28A
TC7WH32FU
D
D
7
RA23
N.I.U.
5
6
7
8
5
6
7
8
D +3. 3
7
R135 N.I.U
R77
D +5
R137
10k
D7
N.I.U.
R73
N.I.U.
D
D
D
8
7
6
5
2
30
40
50
60
R75 22 1/2W
D +3. 3
D +5 C79 0.1
0.1
C78
D
RA27
N.I.U.
D +5
LCD IF (3.3V <=> 5V)
D
C80
0.1
IC13
PC400
1
Q10
N.I.U.
N.I.U
5
MIDI IN
RA26
N.I.U.
DIR "H" : A -> B
DIR "L" : A <- B
C87
0.1
C82
N.I.U.
L16
L17
N.I.U.
3
3
4
2
D +3. 3
R138 N.I.U.
4
D +3. 3
L14
24
22
25
5
OUT
N.I.U
N.I.U
1
IC16D
TC7W04F
RST
L13
6
D6
1SS352
R69
100
1
4
2
5
IN
L12 N.I.U
14
12
15
IC16C
TC7W04F
2
6
R68
2.2k
2
D
D +3. 3
D +3. 3
D +3. 3
R67 120
4
C75
N.I.U.
MIDI
JK8
YKF51-5054
C137
N.I.U.
D
R105
10K
D
D +3. 3
Testpin
Testpin
TVCC1
TVCC2
1
1
Testpin
Testpin
TGND1
TGND2
1
1
MAIN BOARD ASSY (Digital)
D
27
Sep. 2001
GT-6(T)
CIRCUIT DIAGRAM (MAIN 2/2)
fig.block
C1
0.01
R1
1.2K
R2
C2
N.I.U.
10K
R3 18k
C3 10P
A
1
R4 12K(F)
R7
8
A-9
IC1A
M5238FP
10/16
A-9
3
R13
10K
R14
47/2W
A
C13
47/16
C14
0.1
6
5
R31
47K
A
IC4A
M5218AFP
A
A
A
R26
82K
13
D
C149
0.1
10/16
A
D
C25
10P
A+9
C28
C29
10/16
10/16
7
-
6
+
5
R30
10K
C32
N.I.U.
C27
10/16
-
10/16
A
IC5C
M5216F
D1
1SS352
-
+
A
VR1B
RK09K12A0 (10kAx2)
D +3. 3
A+9
C26
+
A
C34
IC4C
M5218AFP
10/16
A-9
20
C35
470/6.3
D +3. 3
R122
R37
47k
10k
1
A-9
A
D
A
C38 10P
C39
10/16
2 -
D +3. 3
R123 R124
47k
47k
1
Q5
2SA1586GR
MUTE
Q15
2SA1586GR
R38
10K
D
R39
1M
IC8
AK4552VT
R44 100K(F)
1
2 -
3 +
1
220k
A-9
3 +
IC6A
M5218AFP
R128
+ N.I.U.
R46
A
DA2
C17
C22
N.I.U.
C152
1
IC7A
NJM2100M
C42 10P
2
10/16
1
C153
15
8
N.I.U.
R48
10K
-
L8
R54
10
R52
10K
+
6 -
A
IC7C
NJM2100M
A
A
C44
0.1
C45
47/16
IC7B
4
7
PDN
C48
0.1
C49
10/16
DEM0
DEM1
VA
5
5 +
ROUT
11
8
12
10
9
MCK
ADDATB
BCK
LRCK
DADATB
13
RES
C41
10P
R47
10k
C43
0.001
6
7
VSS
VCOM
R57
C52
10/16
D
R49
6 5 +
14
NJM2100M
A
33k
D
VD
3
R51
C53
0.1
R60
47k
R56
1K
C47 10/16
IC6B
C54 M5218AFP
0.001
R61
10k
A
RN1441-A
R55
1K
7
33k
C154
10p
A
C50 C51
0.1 10/16
C46
10/16
47k
A
Q6
1
N.I.U
R53 6.8k(F)
4
C158
N.I.U.
+
R50 12K(F)
LOUT
MCLK
SDTO
BCLK
LRCK
SDTI
RIN
16
10/16
A
LIN
A-9
2
2
HTJ-064-12i
3
R19
10K
3
10/16
+
IC4B
M5218AFP
1
A+9
2
R43 12K(F)
2
2
4
1
RETURN
C40
10/16
-
2
-
1
R29
N.I.U
R42 18k
D17
1SS352
R45
10K
D
R36
330
C37
N.I.U.
R40 1.2k
R41 10k
3
L7
N.I.U
A
1
A
A
JK5
C12
0.1
23
10p
+
10/16
VR1A
RK09K12A0 (10kAx2)
1
IC5B
M5216F
10K
A
A
C11
10/16
3
3
1
A
C36
0.01
14
2
47K
C19
8
R28
7
C33
150P
2
100k
R27
10K
C146
R18
N.I.U
C18
IC5A
M5216F
A
3
C24
0.001
C31
100/16
R35
Q4
RN1441-A
VCOM
3
A
VSS
A
4
2
R25
330
R33
1k
10/16
R34
D
VD
C16 10P
R20
47K
2
-
C23
150P
A
C30
L6
N.I.U
10p
10K
A
2
4
1
47K
C145
+
A
JK4
RES
6
7
D
C10
10/16
10
1
R17
1
100/16
R24
Q3
RN1441-A
A
R32
1k
3
R15
82K
R16
10K
12
C21
3
10/16
R23
100k
A
A
22
R22
1k
C20
2
4
1
+
C8
C9
10/16 0.1
13
C148
0.1
A
R21
1k
PDN
DEM0
DEM1
VA
1
2
L5
N.I.U
ROUT
MCK
ADDATA
BCK
LRCK
DADATA
C147
0.1
A
C15
0.001
Q2
RN1441-A
LOUT
11
8
12
10
9
C157
100/16
IC2C
NJM2100M
+
A
3
L4
N.I.U
MCLK
SDTO
BCLK
LRCK
SDTI
RIN
A
1
2
A
C7
0.1
5
A
R12
10K
-
Q1
RN1441-A
4
R9
10
7
5 +
R127
N.I.U.
LIN
L2
N.I.U
IC2B
NJM2100M
6 -
IC1C
M5238FP
R11
47/2W
2
3
1
JK3
16
8
A
L3
N.I.U
HTJ-064-12i
R8 12K(F)
R10 6.8K(F)
4
1
3 +
OUT R
C151
15
+
+
2 -
HTJ-064-12i
C6 10P
A
-
OUT L
(MONO)
1
1M
DA1
N.I.U.
HEADPHONES
10/16
A+9
A
JK2
HTJ-064-12D
2
3 +
IC1B
M5238FP
1
C150
1
2
2
HTJ-064-12i
2 -
8
A+9
7
5 +
IC3
AK4552VT
IC2A
NJM2100M
R5 100K(F)
4
GUITAR IN
C4
10/16
6 -
4
2
4
1
D16
1SS352
C5
0.1(P)
3
JK1
R6
10K
2
L1
N.I.U
R58
100K
A
R59
100K
L9
N.I.U
2
4
1
A
JK6
SEND
HTJ-064-12i
A
D3
SS14
R64
1.8k(F-rank)
Q7
2SD1758
D
3
2
R65
1.5k
C67
100/35
C65
470/35
D
D
IC30
C162
0.1
C66
100/16
2
2
A
C69
100/16
1
R66
1.8k
3
OUT
28
Q14
2SB1132
8
A-9
3
C163
0.1
C72
100/16
D
C159
0.1
IN
MAIN BOARD ASSY (Analog)
+
S-81233SGY
OUT
3
C160
0.1
C161
N.I.U.
R142
1.5k
3
D
1N4004
IC6C
M5218AFP
D
D
2
1
R115
4.7k
-
N.I.U.
IC31
2
1
1
R139
10 (0805size)
D5
C70
100/35
IN
C68
100/16
D14
RD10ESAB2
C76
47/16
A+9
2
D13
RD10ESAB2
C74
100/35
2
C60
N.I.U.
D
1
C64
100/35
C71
470/35
C59
0.1
+
3
1
2
R114
4.7k
D
2
2
1N4004
1
1
Q13
2SD1664
R141
10 (0805size)
3
D
D
D4
OUT
4
D
C62
150p
C144
220/35
C61
470/6.3
COM
D
R63 3k(F-rank)
D
C58
0.1
1N4004
D +5
A+9
IN
1
IC9
NJM2374AM
D
CS
4
C57
N.I.U.
D
IN+
1
2
5
2
V+
IC10
BA17805FP
R140
10 (0805size)
D12
1
COM
6
ES
1
FL2
DSS9ND31H223Q91J
SI
D +3. 3
L11
470uH(TSL1112SRA-471KR72)
2
COM
2
C56
2200/35
CT
7
3
C55
ERZVA7V330
Q12
2SA1241-Y
2
1
R62
0.68 (1/2W)
1N4004
1
2
8
1
CD
D
2
R113
1k
R112
2.2k
L10 N.I.U.
D2
1
HEC0740-010010
R143
N.I.U.
1
SW1A
SDKLA1-B
GND
2
1
3
FL1
DSS9ND31H223Q91J
3
A
JK7
Q8
2SB1182
A
A-9
29
Sep. 2001
GT-6(T)
CIRCUIT BOARD (SW SHEET)
fig.block
View from components side
View from components side
30
31
Sep. 2001
GT-6(T)
CIRCUIT DIAGRAM (SW SHEET)
SW_DATA7
1SS133
SW_SCAN3
SW_SCAN2
SW_SCAN1
SW_SCAN0
D +3. 3
SW_DATA6
1
2
3
D
VDD
LED_DATA1
D
3
1
SW27
2 1
SKQKAB
SW_SCAN0
D
2
1
1SS133
2
1SS133
D29
SW29
2 1
1
SKQKAB
2
1
1SS133
1SS133
SKQKAB
SW26
2 1
1
SKQKAB
1SS133
VSS
R12
390
R13
390
R14
390
R15
390
R16
390
R17
390
R18
390
1
2
1
2
1
2
2
R11
390
D +3. 3
R19
390
R20
390
1
PRE/SP
TYPE VARIATION
(GREEN) (RED)
OD/DS
TYPE VARIATION
(GREEN) (RED)
2
D +3. 3
D +3. 3
3
C2 D +3. 3
0.1
D26
2
IC3
BU2090 (DIP)
D31
2
LED_DATA2
2
3
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
DATA
CLOCK
D +3. 3
3
15
14
13
12
11
10
9
8
7
6
5
4
D +3. 3
3
Q1
RN2207
R21
120
1SS133
1SS133
SKQKAB
R10
390
D +3. 3
15
14
13
12
11
10
9
8
7
6
5
4
1
2
SW31
2 1
1
R9
390
D +3. 3
D20
D
2
D +3. 3
1SS133
UTILITY
D30
SW30
2 1
D +3. 3
D +3. 3
Q2
RN2207
R22
390
WAH
EZ TONE
TUNER/ PEDAL
OUTPUT
BYPASS ASSIGN SELECT
3
Q3
RN2207
R23
120
Q4
RN2207
LED21
LED22
L-312LRD L-312LRD
LED23
L-312LRD
LED24
L-312LRD
LED25
L-312LRD
R24
390
D +3. 3
D +3. 3
D +3. 3
D +3. 3
D +3. 3
1
SKQKAB
1SS133
D +3. 3
D
MANUAL
D25
SW25
2 1
1
D +3. 3
D +3. 3
1
2
D +3. 3
2
D24
NAME/FV/
CHAIN/NS
SFX-2
D28
SW28
2 1
SKQKAB
SKQKAB
1SS133
SKQKAB
OUTPUT
SELECT
SW24
2 1
1
SW20
2 1
1
LED20
L-312LRD
D +3. 3
LED27
L-3WSRSGW-CC
D
LED28
L-3WSRSGW-CC
R25
390
R26
390
R27
390
2
CHORUS
D27
2
2
LED19
L-312LRD
D +3. 3
2
SKQKAB
1SS133
D23
SW23
2 1
1
2
LED18
L-312LRD
2
2
D19
1SS133
SKQKAB
PEDAL
ASSIGN
D14
1SS133
TUNER/
BYPASS
SW19
2 1
1
1SS133
SKQKAB
SFX-1
D22
SW22
2 1
SKQKAB
1SS133
1SS133
SKQKAB
LED17
L-312LRD
3
1
1
PRE/SP
TYPE VARIATION
SW_DATA5
SW_DATA4
SW_DATA3
SW_DATA2
SW_DATA1
SW_DATA0
SKQKAB
2
SW14
2 1
1
WRITE
D18
SW18
2 1
1
2
1SS133
DELAY PRE/SP OD/DS
LED11
LED12
LED13
LED14
LED15
LED16
L-312LRD L-312LRD L-312LRD L-312LRD L-312LRD L-312LRD
2
SKQKAB
SW_SCAN1
2
SKQKAB
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
DELAY
SFX-1 SFX-2 CHORUS REVERB TAP
EQ
LED10
L-312LRD
R28
390
R29
390
D
LED29
D
7
VEE
C
B
A
INH
D
D
D
D
D
D
VR2
RD901-40-125F-B54-00D
VR4
RD901-40-125F-B54-00D
D
IC6
BU2090 (DIP)
D
VR8
RD901-40-125F-B54-00D
LED_DATA4
2
3
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
DATA
CLOCK
7
D
C
B
A
INH
D
D
VR16
RD901-40-125F-B54-00D
D
VR11
RD901-40-125F-B54-00D
VR13
RD901-40-125F-B54-00D
G2
F2
DP
9
7
E2
5
12
C2
D2
6
8
A2
B2
10
11
G1
DP1
4
F1
D1
E1
1
2
B1
C1
3
470
470
470
470
470
470
470
470
470
470
470
470
470
470
A
F
B
G
E
C
1
D
D
DP
RE F +3. 3
3
2
D
R31
R32
R33
R34
R35
R36
R37
R38
R39
R40
R41
R42
R43
R44
2
1
2
D
PATCH
LEVEL
3
3
2
D
RE F +3. 3
1
2
PRE/SP
SPEAKER
VR14
RD901-40-125F-B54-06D
RE F +3. 3
3
RE F +3. 3
3
2
PRE/SP
LEVEL
1
2
9
10
11
6
RE F +3. 3
1
GND
VEE
RE F +3. 3
3
VCC
RE F +3. 3
CHORUS
LEVEL
VR12
RD901-40-125F-B54-00D
1
8
VR10
RD901-40-125F-B54-00D
4
2
5
1
12
15
14
13
1
16
C4
0.1
7
6
5
4
3
2
1
0
3
COM
REVERB DELAY
LEVEL
FEEDBACK
1
3
D +3. 3
DELAY
LEVEL
VSS
[6detents]
IC5
TC74HC4051AP
11
10
9
6
7
5
4
14
13
12
8
15
18
2
D
VR6
RD901-40-125F-B54-00D
A1
C5 D +3. 3
0.1
3
2
13
DIG2
17
2
DIG1
15
2
14
RE F +3. 3
3
3
3
2
VR9
RD901-40-125F-B54-00D
RE F +3. 3
D
9
10
11
6
D
2
RE F +3. 3
D +3. 3
16
2
VR7
RD901-40-125F-B54-00D
RE F +3. 3
16
GND
RE F +3. 3
PRE/SP
MIDDLE
VDD
8
D
2
VR5
RD901-40-125F-B54-11D
RE F +3. 3
D +3. 3
1
WIRING 7P
RE F +3. 3
PRE/SP
BASS
1
VCC
RE F +3. 3
PRE/SP
GAIN
1
16
C3
0.1
VR3
RD901-40-125F-B54-06D
4
2
5
1
12
15
14
13
PRE/SP
TREBLE
3
D +3. 3
7
6
5
4
3
2
1
0
1
COM
PRE/SP
TYPE
3
3
OD/DS
LEVEL
1
AD1
AD0
AD_C
AD_B
AD_A
OD/DS
TYPE
OD/DS
DRIVE
IC4
TC74HC4051AP
3
1
2
3
4
5
6
7
1
1
2
3
4
5
6
7
3
CN8
A-552SR BW
[11detents]
1
[6detents]
RE F +3. 3
1
TO CN6 ON MAIN BOARD
1
WIRING 11P
SW_SCAN3
SW_SCAN2
SW_SCAN1
SW_SCAN0
D21
SW_DATA0
1
2
3
4
5
6
7
8
9
10
11
1SS133
2
D13
SW13
2 1
1
EXIT
D17
SW17
2 1
1
DELAY
TAP
DATA0
1
2
3
4
5
6
7
8
9
10
11
SW21
2 1
2
SKQKAB
PRE/SP
1
SCAN1
CN7
EQ
D16
SW16
2 1
2
1SS133
16
1SS133
SKQKAB
CLOCK
VDD
1
D12
SW12
2 1
1
DATA
VSS
2
2
1SS133
SW_DATA5
SKQKAB
SW_SCAN2
SKQKAB
REVERB
D15
D11
SW11
2 1
1
DATA2
SW15
2 1
2
1SS133
DATA5
OD/DS
TYPE VARIATION
1
D10
SW10
2 1
SKQKAB
EZ
TONE
SW_DATA4
1
DATA4
2
1SS133
PARAMETER
[>](RIGHT)
DATA3
2 1
SKQKAB
SW_SCAN3
SW_DATA1
1
SCAN3
WAH
SW_DATA2
D9
SW9
D
PARAMETER
[<](LEFT)
SW_DATA3
DELAY
OD/DS
1
2
3
4
5
6
7
8
DATA1
1
2
3
4
5
6
7
8
2
D +3. 3
SCAN2
TO CN3 ON MAIN BOARD
IC2
BU2090 (DIP)
1
2
3
TO CN7 ON MAIN BOARD
TO CN2 ON
MAIN BOARD
CN6
RIBON 3P (1/2)
UTILITY
LED9
L-312LRD
1
10
9
8
7
6
5
4
3
2
1
10
9
8
7
6
5
4
3
2
1
C1 D +3. 3
0.1
RIBON CABLE (3P)
16
1
2
3
1
2
3
D
CN2
WIRING 10P
CN11
WIRING 8P
NAME/FV/
CHAIN/NS
MANUAL
DGND
CN5
RIBON 3P (1/2)
1
EN1B
EVE GC1 F20 24B
2
SKQKAH
B
SW4 BOARD ASSY (4/6)
1
2
2
1SS133
SKQKAH
2 1
SW_DATA7
SW3 BOARD ASSY (3/6)
1
1
2
1SS133
2
2
SKQKAH
SW_SCAN2
1
1SS133
SKQKAH
2 1
2 1
2
1
1
2
CARBON SW
1
2
2
1SS133
SKQKAH
D7
SW7
2 1
SW8
1
1
2
1
2
2
1SS133
SKQKAH
2 1
1
BANK UP
D6
SW6
1
1
BANK DOWN
SW_SCAN1
2
1SS133
2
390
1
2 1
D5
SW5
390
1
1
"CTL"
D4
SW4
390
EXP PEDAL FX
ON/OFF
CN10
WIRING 2P
1
SKQKAH
2
"4"
D3
SW3
EN
A
1
2
3
2 1
"3"
D2
SW2
1
2
3
4
5
6
7
R6
2
"2"
D1
1
2
3
4
5
6
7
R7
2
20
10
EN1A
EVE GC1 F20 24B
B
1
2
3
4
5
6
7
L-34HDSL
R8
1
"1"
1
EN
1
2
3
4
5
6
7
LED_DATA3
SW1
A
D +3. 3
SW2 BOARD ASSY (2/6)
D
ENC BOARD ASSY (5/6)
D +3. 3
2
390
LED6
L-34HDSL
1
390
LED7
L-34HDSL
2
390
1
VSS
DGND
390
LED8
2
CLOCK
390
CN3
RIBON 7P (1/2)
3
1
DATA
CN1
RIBON 7P (1/2)
1
3
R5
TO CN8 ON MAIN BOARD
L-34HDSL
R4
1
L-34HDSL
R3
2
L-34HDSL
R2
1
L-34HDSL
R1
2
1
L-34HDSL
D +3. 3
2
2
15
14
13
12
11
10
9
8
7
6
5
4
D +3. 3
1
14
11
12
Q11
Q10
Q9
Q8
Q7
Q6
Q5
Q4
Q3
Q2
Q1
Q0
D +3. 3
2
1
2
3
VR1A
RK11K1140 (10KSB)
2
LED5
EXP PEDAL FX
ON/OFF
1
1
LED4
2
LED3
BANK
UP
2
1
LED2
2
LED1
BANK
DOWN
1
D +3. 3
2
16
13
D+3V
"CTL"
2
D +3. 3
RIBON CABLE (7P)
"4"
D +3. 3
IC1
BU2090F (SOP)
VDD
CN4
WIRING 3P
1
2
3
"3"
D +3. 3
1
D +3. 3
"2"
D +3. 3
2
EXP BOARD ASSY (6/6)
"1"
1
TO CN4 ON MAIN BOARD
fig.circuit-md
D
D
VR15
RD901-40-125F-B54-00D
SW SHEET ASSY
SW1 BOARD ASSY (1/6)
32
33
Sep. 2001
ERROR MESSAGE
BATTERY check
fig.EM-3
Normal Error Message
fig.EM-1
“LOW” is displayed when 2.7 V or lower.
fig.EM-4
The memory backup battery inside the GT-6 has run down. (This message will
appear when the power is turned on.)
Replace the battery as soon as possible. For battery replacement, please contact
a nearby Roland service center or your dealer.
“No Battery !!” is displayed when a battery is not inserted.
*
fig.EM-2
Insert a new lithium battery.
If an error message continues to appear when a new lithium battery is
inserted, check the following parts and wiring.
CPU(IC21):pin 84
OP.Amp(IC25):pins 1-5
Resistor(R80, R81, R82, R121)
There is a problem with the MIDI cable connection.
Diode(D9, D10)
Check to make sure the cable has not been pulled out or is not shorted.
Capacitor(C118, C136)
fig.EM-3
MIDI Check
fig.EM-5
You’ve attempted to switch patches by rotating the [PATCH/VALUE] dial,
but the Dial function (p. **) is set to “VALUE Only.”
If you want to be able to switch patches using the [PATCH/VALUE] dial, set
the Dial function to “PATCH No.& VALUE.”
Problem : No MIDI cables are connected.
fig.EM-6
fig.EM-4
More MIDI messages were received in a short time than could be processed
correctly.
Problem : The data sent (MIDI OUT) and the data received (MIDI IN) do not
match.
*
•
Check the following parts and wiring.
MIDI IN
Error messages in test mode
CPU(IC21):pin 12
DSP check
Capacitor(C80)
Resister(R67-R69)
Photo Coupler(IC13)
fig.EM-1
Diode(D6)
•
MIDI OUT
CPU(IC21):pins 10
Resister(R76,R77,R138)
Problem : The data written in the DSP (IC8) PROM and the data read do not
match.
*
Gate IC(IC16)
Check the following parts and wiring.
DSP(IC20): pins 77-79, 81-84, 86-89, 91-92, 94-97, 99-100, 102-107
DSP Pitch interruption signal check
fig.EM-7
fig.EM-2
Problem : The data written to the DRAM (IC24) via the DSP (IC20) and the
data read do not match.
*
Check the following parts and wiring.
DSP(IC20): pins 7-10, 12-14, 16, 17, 19-21, 23-25, 27, 32-35
DRAM(IC24): pins 1-44
34
Problem : The interruption signal generated from DSP (IC8) internal oscillation
is not recognized.
*
Check the following parts and wiring.
CPU(IC21):pin 8
DSP(IC20):pin 75