Roland ME-80 Service Notes Download Page 30

Page: 30 / 40

Jan. 2014

ME-80

Circuit Diagram (Main Board: 2/4)

fig.d-main2.eps@L

D+1.2

D+3.3

MDQM 1

D+3.3

GN D

D+1.2

D+3.3

XMW E

XICE-RS

GN D

MCK E

GN D

ECKE

D+1.2

GN D

XMSDRC S

GN D

D+3.3

GN D

MCK O

GN D

XMRA S

GN D

D+3.3

GN D

D+3.3

MDQM 0
XMCA S

MA(0:15)

MA(11)

MA(9)

MA(8)

MA(10)

MA(14)

MA(15)

MD(0)

MD(1)

MD(2)

MD(3)

MD(4)

MD(5)

MD(6)

MD(7)

MD(8)

MD(9)

MD(10)

MD(11)

MD(12)

MD(13)

MD(14)

MD(15)

GN D

D+3.3

D+1.2

GN D

D+1.2

D+3.3

ECKO

XICE-RS

GN D

EXP-VR

VR1-COM

VR2-COM

VR3-COM

VR4-COM

GN D

PVCC

GN D

D+3.3

SD-AD

SD-DA

CODEC-MC K

CODEC-BCK

CODEC-LRCK

MUX- A

MUX- B

MUX- C

LED-DATA3
LED-DATA2
LED-DATA1

LED-CLK

XOUTPUT-MUT E

XCODEC-PD N

OP-MUT E

SW-INT

SW-12

SW-11

SW-10

SW-9
SW-8
SW-7
SW-6
SW-5

SW-4
SW-3

SW-2
SW-1

PHONES-CNT

XSWD-PW R

XPWR-OF F

MA(0)

MA(1)

MA(2)

MA(3)

MA(7)
MA(6)
MA(5)
MA(4)

XECS

XERAS
XECAS

XEW E

SF-SCLK

XSF-CS

SF-SO
SF-SI

XSF-HLD

1uF

C58

1uF

C57

R93

TC7WU04FU(TE12L.F

)

IC4

TC7WU04FU(TE12L.F

)

IC4

TC7WU04FU(TE12L.F

)

IC4

10k

R53

TP88

JK3
UBR23-4K5100

C65

UnPo p

R88

TP84

TP83

0.1uF

C49

TC7WU04FU(TE12L.F

)

IC4

0.1uF

C36

1uF

C61

0.1uF

C35

0.1uF

C145

0.1uF

C66

MB8AA4181(ESC2)

IC1

N 2
N 1
N 4
R4
R3
T2
P2

W 1

U 3

U 1

U 2

D 3

D 2

H 4
H 3
J4
J3
G 2
G 1
H 2
H 1
J2
J1
K2
K1

L3
L2
L1
L4
M 2
M 1
N 3

U 4

W 3

W 5

R2
R1

AA 4

AA 7

AA 6

Y12

AA1 1

Y11

AA1 0

AA 9

AA 8

W 7

W 9

W1 1

V11

W1 2

V12

W 2

BD45301G-TR

IC24

VD D

GN D

VOU T

680

R94

10k

R117

RA1
56

4
3
2

RA2
56

4
3
2

RA3
56

6
5

R11

R12

RA5

6
5

DSO321SR 48.000MHZ 50PP

IC7

VD D

GN D

OU T

O E

DSX321G 16.9344MH

100k

R23

1uF

C19

1uF

C21

1uF

C22

1uF

C23

1uF

C24

10k

R26

RA20

4
3
2

RA21

6
5

RA22

6
5

R27

R28

R29

R147

R146

RA48

4
3
2

15pF

C46

15pF

C44

R101

56k

R265

BM08B-SRSS-TB (LF)(SN

)

CN 9

UnPo p

1
2
3
4
5
6
7
8

IC1
MB8AA4181(ESC2)

P18

P19

Y14

AA1 3

Y13

AA1 2

W1 4

V14

V16

C15

D1 5

A15

D1 4

B15

A12

A14

A16

B12

M2 1

M2 0

L21

L20

M1 9

M1 8

K19

K18

H1 9

N2 0

N2 1

P20

P21

R20

R21

T20

T21

U1 9

U2 0

V19

V20

T18

T19

F2
C2

A 2
C16
C12
D1 6

AA1 8

Y19

AA1 9

AA1 4

U1 8

V17

W1 6

AA1 5

Y15

B10

C10

A 9

A11

B11

D 9

A 7

D1 0

A 8

C19

C4
B6

D 5
A 6
C7

A 3
B4
C5
D 6

B14

B16

C13

D1 3

C14

B13

A13

H1 8

E18

K21
K20
H2 0
J20

V21
Y16
AA1 7
Y20
W1 7
Y18
Y17
AA1 6
W1 8

A 4
B5
C6
A 5

F21
F20

E21
E20

H2 1

D 8
C8

AA 2
AA2 0
Y21

A17

C11

D1 1

A10

C20
D2 0
E19
F19
G20

B19
C21
B20
A20
B21

C18

B18

A19

R75

R78

R138

R139

R140

0.01u

C12

0.01u

C12

0.01u

C12

0.01u

C12

0.01u

C12

D (0.5%

)

68k

R141

D (0.5%

)

27k

R148

0.1uF

C125

CN 3

BM14B-SRSS-TB (LF)(SN

)

UnPo p

1
2
3
4
5
6

8
9

10
11
12
13
14

270

R123

10uF

C18

2125

R96

R97

R98

R99

0.1uF

C25

R95

100

R10

100

R13

100

R14

100

R15

100

R18

100

R19

100

R20

100

R64

100

R65

100

R66

100

R69

100

UnPo p

100

R71

100

R105

100

R108

100

R109

100

R110

100

R111

100

R113

100

R115

100

R119

100

R120

100

R121

100

R122

100

R126

100

R127

180k

R24

D (0.5%

)

12k

R25

TP1

TP2

TP3

100

R17

100

R16

TP5

TP8

TP9

MX25L3206EM2I-12

IC5

SCLK

SI/SIO

SO/SIO1

_CS

_W P

_HOL D

GN D

VCC

JTAG for ESC

USB DEVIC

SERIAL FLAS

Summary of Contents for ME-80

Page 1: ...1 Parts List 8 Plane View 2 9 Plane View 2 Parts List 9 Exploded View Fig A 10 Exploded View Fig A Parts List 10 Exploded View Fig B 11 Exploded View Fig B Parts List 11 Parts List 12 Verifying the Version 14 Virus Check 14 Data Backup and Restore Operations 14 Performing a Factory Reset 14 Updating the System 14 Test Mode 14 Block Diagram 24 Circuit Board Main Board 26 Circuit Diagram Main Board ...

Page 2: ...under a different part code Because a number of circuit boards are grouped together and supplied as a single circuit board under a different part code Because supply is prohibited due to copyright restrictions Because reissuance is restricted Because the part is made to order at current market price Because it is carried in electronic data on the Roland web site Because it is a package or an acces...

Page 3: ...T PHONES jack Stereo miniature phone type AUX IN jack Stereo miniature phone type USB COMPUTER port USB type B DC IN jack Display 7 segments 2 digits LED Power Supply Alkaline battery AA LR6 x 6 or Carbon zinc battery AA R6 x 6 or AC adaptor Current Draw 200 mA Expected battery life under continuous use These figures will vary depending on the actual conditions of use Alkaline Approx 7 hours Carbo...

Page 4: ...4 Jan 2014 ME 80 Location of Controls fig panel eps 1 2 5 12 3 5 12 12 8 7 14 12 11 17 24 24 21 20 22 19 25 23 16 13 6 15 18 10 9 12 5 12 4 12 ...

Page 5: ...0 PEDAL FOOT H 7 6 G2357126R0 4 04560712 SUPPORT SPRING G2177103R0 4 11 5100037544 SW PEDAL ESCUTCHEON 4 12 05015956 LED BL L 7104SRT F5229820R0 16 5100003409 LED SPACER LEDS 8S 16 13 05015967 LED L 7104SGT 1 5100003409 LED SPACER LEDS 8S 1 14 5100011395 PEDAL PLATE 1 15 5100011392 VR PEDAL 1 16 5100001342 6 5MM JACK HTJ 064 12IMP 13449155R1 2 5100003918 JACK NUT M9X12X2 NI RTC H5039510R0 2 510000...

Page 6: ...6 Jan 2014 ME 80 Exploded View All fig bunkai all eps 1 2 2 3 10 5 9 19 23 15 11 25 13 16 17 22 21 12 14 20 24 18 24 6 4 7 8 Refer to Fig B Refer to Fig A View 1 View 2 View 3 View 4 ...

Page 7: ...0712 CORD HOOK 236 712 1 5 5100018071 POWER SW ESCUTCHEON G2207430R1 1 6 12499175 BUTTON JSPUE0011A 1 7 5100003918 JACK NUT M9X12X2 NI RTC H5039510R0 3 8 5100003926 PLAIN WASHER 9X13 5X0 5T NI H5039158R0 3 9 5100037540 TOP COVER 1 10 NUT 1 11 WASHER 1 5100037426 PANEL SHEET ASSY 1 This unit includes the following parts 12 EXP BOARD 1 13 PANEL BOARD 1 14 JACK BOARD 1 15 5100037421 MAIN BOARD ASSY 1...

Page 8: ... View 1 View 2 No Part Code Part Name Description Q ty a 40019123 SCREW 3X8 BINDING TAPTITE S BZC 2 b 40342712 SCREW M3X6 PAN MACHINE W SW SMALL PW BZC 2 No Part Code Part Name Description Q ty c 40011312 SCREW 3X8 BINDING TAPTITE P FE BZC 4 d 40342712 SCREW M3X6 PAN MACHINE W SW SMALL PW BZC 11 ...

Page 9: ...t Code Part Name Description Q ty e 40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 8 f 40017934 SCREW M3X6 PAN MACHINE W SW PW L FE ZC 1 1 40122645 NITTO FILAMENT TAPE 3883 W19MM 50M 60P CM No Part Code Part Name Description Q ty a 40019123 SCREW 3X8 BINDING TAPTITE S BZC 3 e 40011278 SCREW 3X8 BINDING TAPTITE P FE ZC 4 ...

Page 10: ...xploded View Fig A Parts List 4 3 3 2 1 5 No Part Code Part Name Description Q ty 1 5100037546 SW PEDAL REAR 4 2 5100037545 SW PEDAL FRONT 4 3 04560712 SUPPORT SPRING G2177103R0 8 4 5100037544 SW PEDAL ESCUTCHEON 4 5 5100003910 PEDAL FOOT H 7 6 G2357126R0 8 ...

Page 11: ...01 CUSHION R G2357111 1 6 04560590 U NUT M6 BZC 1 7 04560634 BOLT HOLDER G2147874 2 8 5100011394 PEDAL HOLDER 1 9 5100012831 REAR CUSHION 2 10 03561356 SHAFT STAY STAY 1 11 NUT 1 12 WASHER 1 13 01016167 11M M ROTARY POTENTIOMETER RK11K1140AFG 10KX1 1 5100037426 PANEL SHEET ASSY 1 This unit includes the following parts 14 EXP BOARD 1 PANEL BOARD Refer to Exploded View All p 6 1 JACK BOARD Refer to ...

Page 12: ...UNIT 1 SWITCH 01780101 TACT SWITCH SKQKABD010 4 03344723 TACT SWITCH SKQKAKD010 8 01899989 PUSH SWITCH SPUP19 2N LB2 1 JACK EXT TERMINAL 5100006474 3 5MM JACK HTJ 035 10ABZ F3439911R0 2 5100001342 6 5MM JACK HTJ 064 12IMP 13449155R1 3 04908701 ADAPTOR JACK KM02018ABM1P F3439875R0 1 5100017587 USB CONNECTOR UBR23 4K5100 F3439933R0 1 PWB ASSY 5100037421 MAIN BOARD ASSY 1 5100037426 PANEL SHEET ASSY ...

Page 13: ...5039158R0 3 04560589 WASHER M6 T1 H5039122 1 MISCELLANEOUS 5100003910 PEDAL FOOT H 7 6 G2357126R0 8 5100018071 POWER SW ESCUTCHEON G2207430R1 1 03344923 FOOT H 5 G2357120R0 5 04560634 BOLT HOLDER G2147874 2 22360712 CORD HOOK 236 712 1 5100003409 LED SPACER LEDS 8S 17 5100021018 PWB SPACER LBC 08 N2W 2 04560601 CUSHION R G2357111 1 5100012831 REAR CUSHION 2 03561356 SHAFT STAY STAY 1 04783901 JACK...

Page 14: ...er switch off the power while the Factory Reset operation is being executed When the factory reset finishes the unit returns to the ordinary state at startup Updating the System Items Required Computer running Windows USB cable AC adaptor PSA S Update program obtained via Service Net Procedure Never switch off the power to the unit while the update is in progress 1 Import the update program ME80RO...

Page 15: ...d CTL and press POWER for 1 second or longer 5 When 80 appears on the 7 segment LED display release your hand The version appears on the 7 segment LED display Quitting the Test Mode Press POWER for 1 second or longer to switch off the power Skipping Test Items To advance to the next test item hold down EXIT and press WRITE Returning to the previous test item is not possible Test Items 1 Version Ch...

Page 16: ... eps Serial flash error fig error2 eps App Check Sum error fig error3 eps Updater Check Sum error fig error4 eps USB error fig error5 eps DSP iram0 error fig error6 eps DSP iram1 error fig error7 eps DSP pram0 error fig error8 eps Internal ERAM error fig error9 eps External ERAM error fig error10 eps External ERAM error fig error11 eps UDL Clock error ig error12 eps MONO Test Failed ffig error13 e...

Page 17: ... 2 Operate the VR knobs shown in the following chart in the sequence shown under No and verify the reading of the 7 segment LED display fig test3 2 eps 1 2 3 4 5 6 No VR knob VR position and reading on the 7 segment LED display 1 PREAMP TYPE fig test3 3 e eps 2 PREAMP GAIN fig test3 4 e eps 3 PREAMP BASS fig test3 5 e eps 4 PREAMP MIDDLE fig test3 6 e eps 5 PREAMP TREBLE fig test3 7 e eps 6 PREAMP...

Page 18: ...9 eps 7 8 9 10 11 12 No VR knob VR position and reading on the 7 segment LED display 7 EQ FX2 TYPE fig test3 10 e eps 8 EQ FX2 BASS fig test3 11 e eps 9 EQ FX2 MIDDLE fig test3 12 e eps 10 EQ FX2 TREBLE fig test3 13 e eps 11 EQ FX2 LEVEL fig test3 14 e eps 12 REVERB fig test3 15 e eps ...

Page 19: ...ding on the 7 segment LED display 13 DELAY TYPE fig test3 17 e eps 14 MOD TYPE fig test3 18 e eps 15 OD DS TYPE fig test3 19 e eps 16 COMP FX1 TYPE fig test3 20 e eps 17 COMP FX1 SUSTAIN SENS 1OCT fig test3 21 e eps 18 COMP FX1 ATTACK TONE 2OCT fig test3 22 e eps 19 COMP FX1 LEVEL PEAK DIRECT fig test3 23 e eps 20 OD DS DRIVE fig test3 24 e eps ...

Page 20: ...on and reading on the 7 segment LED display 21 OD DS TONE fig test3 26 e eps 22 OD DS LEVEL fig test3 27 e eps 23 MOD RATE KEY fig test3 28 e eps 24 MOD DEPTH HARMONY fig test3 29 e eps 25 MOD E LEVEL RESONANCE fig test3 30 e eps 26 DELAY TIME fig test3 31 e eps 27 DELAY FEEDBACK fig test3 32 e eps 28 DELAY E LEVEL fig test3 33 e eps ...

Page 21: ...xpression pedal forcefully and verify that the PEDAL FX LED goes dark 5 Verify that a screen like the one shown below appears on the 7 segment LED display fig test4 4 eps 6 Press WRITE to advance to the next test item 5 AUDIO Check The 1 LED lights up Verify that AU is shown on the 7 segment LED display fig test5 1 eps D A Check 1 Make the settings shown below on the oscilloscope and connect it to...

Page 22: ...ings shown below on the oscilloscope and connect it to the Gt AMP OUTPUT L MONO and R jacks ch1 1 00 V div ch2 1 00 V div TIME 1 00 ms div 3 Press EDIT The PEDAL FX LED lights up 4 Verify that the output value is between 1 9 and 2 1 Vp p fig test5 6 eps 5 Make the settings shown below on the oscillator and connect it for input to the GUITAR INPUT jack 200 Hz sine wave at 50 mVp p 6 Make the settin...

Page 23: ...t value is between 1 9 and 2 1 Vp p fig test5 9 eps OUTPUT MONO Check 1 Set the signal generator as shown below and perform input only to the R channel of the AUX IN jack 200 Hz sine wave at 2 0 Vp p 2 Make the settings shown below on the oscilloscope and connect it to the Gt AMP OUTPUT L MONO and R jacks ch1 1 00 V div ch2 1 00 V div TIME 1 00 ms div 3 Verify that the waveforms are output to the ...

Page 24: ...24 Jan 2014 ME 80 Block Diagram fig block eps L ...

Page 25: ...25 Jan 2014 ME 80 fig block eps R ...

Page 26: ...26 Jan 2014 ME 80 Circuit Board Main Board fig b main1 eps ...

Page 27: ...27 Jan 2014 ME 80 fig b main2 eps ...

Page 28: ...D 0 5 10k R42 1000pF C82 330k R32 10k R37 C117 UnPop 10k R34 DTC114TUAT106 Q3 1 2 3 D 0 5 56k R55 D 0 5 10k R51 D 0 5 1 2k R52 D 0 5 10k R58 D 0 5 22k R57 D 0 5 1k R56 D 0 5 10k R45 D 0 5 10k R43 D 0 5 27k R44 47k R59 TP4 TP6 TP7 TP8 TP9 TP10 TP11 TP13 TP14 TP15 TP16 TP17 TP18 TP21 TP24 TP25 TP22 MCH6341 TL E Q1 3 G 1 D1 2 D2 5 D3 6 D4 4 S 1uF C20 1608 DR 670 DC JACK HOLDER G2147127 CN2 10 DR 670 ...

Page 29: ...T 1 SEL1 19 STB NON2 4 D 0 5 10k R40 0 1uF C71 0 1uF C74 0 1uF C75 Q6 QS5U27TR PB FREE 1 5 2 Q7 QS5U27TR PB FREE 1 5 2 Q6 QS5U27TR PB FREE 3 4 Q7 QS5U27TR PB FREE 3 4 0 1uF C76 0 1uF C77 C78 47uF 16V C79 47uF 16V 0 R47 2012 0 R48 2012 2 2k R39 1608 560pF C70 0 1uF C119 TP19 TP20 TP27 TP26 TP28 TP29 TP30 TP31 TP34 0 1uF C4 0 1uF C84 0 1uF C255 0 1uF C256 0 1uF C257 0 1uF C258 0 1uF C259 0 1uF C260 ...

Page 30: ...A3 56 1 8 6 5 4 3 2 7 56 R1 56 R11 56 R12 RA5 56 1 8 6 5 4 3 2 7 DSO321SR 48 000MHZ 50PP M IC7 VDD 4 GN D 2 OU T 3 OE 1 DSX321G 16 9344MH Z X1 1 2 4 3 100k R23 1uF C19 1uF C21 1uF C22 1uF C23 1uF C24 10k R26 RA20 33 1 8 6 5 4 3 2 7 RA21 33 1 8 6 5 4 3 2 7 RA22 33 1 8 6 5 4 3 2 7 33 R27 33 R28 33 R29 68 R147 33 R146 RA48 33 1 8 6 5 4 3 2 7 15pF C46 15pF C44 56 R101 56k R265 BM08B SRSS TB LF SN CN9 ...

Page 31: ...P12 P13 P14 A1 A21 AA1 AA21 D7 D17 G3 G4 G18 G19 R18 R19 P10 J14 K8 K9 K10 K11 K12 K13 K14 L8 L9 L10 L11 L12 L13 P1 J12 AA3 Y3 W2 1 W2 0 W1 9 W1 3 W 8 W 4 V18 V13 V8 V4 U21 P4 P3 C3 B17 A18 H8 H9 H10 H11 H12 H13 H14 J8 J9 J10 J11 AA5 0 1u F C3 0 1u F C26 0 1u F C27 0 1u F C28 0 1u F C29 0 1u F C30 0 1u F C31 0 1u F C32 0 1u F C33 0 1u F C34 0 1u F C37 0 1u F C38 0 1u F C39 0 1u F C40 0 1u F C41 0 ...

Page 32: ...5 7 6 TP314 TP315 TP316 TP339 TP367 TP368 TP341 TP359 TP396 TP398 D 0 5 33k R114 D 0 5 2 2k R233 D 0 5 39k R197 D 0 5 18k R182 D 0 5 6 8k R70 27k R21 27k R22 1000pF C9 1000pF C10 C7 10uF 16V C8 10uF 16V 0 1uF C85 0 1uF C87 0 1uF C95 0 1uF C96 0 1uF C97 C161 10uF 16V C162 10uF 16V Q11 UnPop 1 2 3 4 7 R243 100 R217 2700pF C254 D8 UnPop 2 3 47pF C201 47pF C204 HTJ 035 10ABZ JK4 1 8 7 3 2 4 5 TP12 TP3...

Page 33: ...0uF 16V C101 10uF 16V C106 10uF 16V D 0 5 10k R136 C111 220uF 16V C110 220uF 16V DTC614TU T106 Q15 1 2 3 DTC614TU T106 Q14 1 2 3 DTC614TU T106 Q17 1 2 3 DTC614TU T106 Q16 1 2 3 4700pF C5 4700pF C6 1k R132 1k R134 2700pF C113 2700pF C112 47pF C109 47pF C108 p 1 D9 UnPop 2 3 1 D 0 5 12k R135 IC9 NJM4556AM TE2 3 1 2 IC9 NJM4556AM TE2 5 7 6 NJM4556AM TE2 IC9 4 8 C1 10uF 16V C2 10uF 16V TP42 TP43 TP44 ...

Page 34: ...A2 LED DATA3 SW 1 SW 2 SW 3 SW 4 SW 5 SW 6 SW 7 SW 8 SW 11 SW 12 GND SW 9 SW 10 DTA114TUAT106 Q40 2 3 1 TP105 DAP202U T106 PB FREE D19 3 2 1 DAP202U T106 PB FREE D18 3 2 1 DAP202U T106 PB FREE D6 3 2 1 DAP202U T106 PB FREE D7 3 2 1 10k R310 2 2k R309 TP72 28FMN STK A LF SN CN8 22 2 1 8 7 6 5 4 3 15 14 13 12 11 10 9 21 20 19 18 17 16 28 27 26 25 24 23 TO PANEL BOARD CN2 ...

Page 35: ...35 Jan 2014 ME 80 ...

Page 36: ...36 Jan 2014 ME 80 Circuit Board Panel Jack EXP Board fig b panel1 eps ...

Page 37: ...37 Jan 2014 ME 80 fig b panel2 eps ...

Page 38: ...F B50K 00 D 1 3 2 VR2 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR10 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR8 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR18 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR24 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR5 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR20 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR6 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR11 RV09BDF 40E1 125F B50K 00 D 1 3 2 VR22 RV09BDF 40E1 125F B50K 00 D 1 ...

Page 39: ... G2 12 F2 5 E2 6 D2 8 C2 10 B2 11 A2 4 DP1 17 G1 18 F1 1 E1 2 D1 3 C1 16 A1 B1 15 L 7104SG T LED8 1 2 C1 10uF 16V C2 10uF 16V C3 10uF 16V BU2090 IC4 2 DATA 3 CLOCK 1 VSS 4 Q0 5 Q1 6 Q2 7 Q3 8 Q4 9 Q5 10 Q6 11 Q7 12 Q8 13 Q9 14 Q10 15 Q11 16 VD D BU2090 IC6 2 DATA 3 CLOCK 1 VSS 4 Q0 5 Q1 6 Q2 7 Q3 8 Q4 9 Q5 10 Q6 11 Q7 12 Q8 13 Q9 14 Q10 15 Q11 16 VD D BU2090 IC7 2 DATA 3 CLOCK 1 VSS 4 Q0 5 Q1 6 Q2...

Page 40: ...SHIELD COVER 10 20 30 470pF C404 CN400 1 2 3 4 5 6 12k R406 1 C402 10uF 16V 10k R403 1 HTJ 064 12IMP JK401 1 4 2 1uF C401 6Y1H105J T2 2SK2881 T112 E Q400 2 1 3 470pF C405 HTJ 064 12IMP JK400 1 4 2 D401 1SS133M CN300 1 2 3 10k B RK11K1140AFG VR300 10 VR300 RK11K1140AFG 10k B 1 3 2 10k B RK11K1140AFG VR300 20 Gt AMP OUTPUT R Gt AMP OUTPUT L MONO ME 80 WIRING W2 INPUT GUITAR INPUT JACK BOARD EXP BOAR...

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