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Roland JC-40, Service Notes

The Roland JC-40 user manual, the ultimate guide for maximizing your experience with this iconic amplifier, is available for free download from manualshive.com. Packed with comprehensive service notes and easy-to-follow instructions, this manual ensures a seamless setup and operation of your Roland JC-40 to unleash its exceptional sound quality.

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26

Nov. 2015

JC-40

Circuit Diagram (Main Board: 4/4)

fig.d-main-4.eps@L

LRCK

AG

D+3.3V

AG

AD2

MCK

BCK

PDN_CODEC

AG

AG

MAIN_SIG_L

AG

AG

AG

MAIN_SIG_R

AG

AG

AG

AG

AG

AG

AG

AG

AG

AG

AG

AG

A+5V_2

MUTE

MUTE

A+8V

AG

A-8V

A-8V

AG

A+8V

A-8V

AG

A+8V

AG

AG

AG

AG

AG

AG

AG

AG

AG

A+8V

AG

A-8V

MAIN_RETURN_L

MAIN_RETURN_R

AK5358AET

IC29

2

AINL

1

AINR

4

VCOM

15

CKS2

3

CKS1

16

CKS0

13

PDN

5

AGND

8

DGND

11

MCLK

14

DIF

9

SDTO

12

SCLK

10

LRCK

7

VD

6

VA

2SC4213-A(TE85L.F)

Q17

1

B

2

E

3

C

2SC4213-A(TE85L.F)

Q7

1

B

2

E

3

C

0

R70

0

R186

3.3k

R76

1%

3.3k

R212

1%

3.3k

R208

1%

3.3k

R78

1%

560k

R90

1%

560k

R221

1%

68k

R87

1%

68k

R219

1%

47k

R185

1%

47k

R69

1%

27k

R33

1%

27k

R36

1%

100k

R187

1%

100k

R73

1%

6.8k

R206

1%

33k

R213

1%

6.8k

R214

1%

33k

R205

1%

220k

R58

1%

220k

R53

1%

47k

R156

1%

47k

R40

1%

68k

R68

1%

68k

R184

1%

0

R80

10

R82

1k

R52

1k

R158

22k

R216

22k

R207

100k

R167

100k

R61

0.1uF

C108

0.1uF

C234

0.22uF

C255

0.22uF

C101

8200pF

C216

8200pF

C53

1200pF

C209

1200pF

C22

4700pF

C252

4700pF

C257

1uF

C253

1uF

C71

0.22uF

C254

0.22uF

C72

16V

10uF

C109

C78

22uF 16V

C77

22uF 16V

C103

10uF 16V

C92

2.2uF

50V

IC8

NJM4580M(TE2)

3

1

2

IC8

NJM4580M(TE2)

5

7

6

NJM4580M(TE2)

IC8

4 VEE

8

VDD

IC24

NJM4580M(TE2)

3

1

2

IC24

NJM4580M(TE2)

5

7

6

NJM4580M(TE2)

IC24

4 VEE

8

VDD

25V

0.1uF

C32

25V

0.1uF

C37

25V

0.1uF

C45

25V

0.1uF

C54

IC19

NJM4580M(TE2)

3

1

2

IC19

NJM4580M(TE2)

5

7

6

NJM4580M(TE2)

IC19

4 VEE

8

VDD

25V

0.1uF

C80

25V

0.1uF

C81

3.9k

R141

1%

3.9k

R142

1%

470

R121

1%

470

R147

1%

C58

10uF 16V

0.1uF

C83

C104

10uF 16V

C230

1uF

50V

C233

1uF

50V

C127

1uF

50V

47k

R188

1%

C220

1uF

50V

470pF

C261

470pF

C271

C258

1uF

50V

C260

1uF

50V

39k

R218

1%

39k

R199

1%

IC21

NJM4580M(TE2)

3

1

2

IC21

NJM4580M(TE2)

5

7

6

NJM4580M(TE2)

IC21

4 VEE

8

VDD

25V

0.1uF

C224

25V

0.1uF

C235

0.056uF

C272

0.056uF

C273

150

R79

8200pF

C340

3.3k

R16

1%

8200pF

C341

3.3k

R241

1%

47k

R189

1%

6.8k

R242

1%

4700pF

C342

6.8k

R243

1%

4700pF

C343

27k

R217

1%

27k

R220

1%

8200pF

C344

2.7k

R244

1%

8200pF

C345

2.7k

R245

1%

AG

AG

47pF

C88

UnPop

47pF

C76

UnPop

0.022uF

C212

UnPop

0.022uF

C35

UnPop

C89

10uF

16V

UnPop

C69

10uF

16V

UnPop

15pF

C269

UnPop

15pF

C270

UnPop

470

R246

1%

UnPop

0.027uF

C105

UnPop

470

R247

1%

UnPop

0.027uF

C106

UnPop

Summary of Contents for JC-40

Page 1: ...t 6 Plain View Cabinet Parts List 7 Exploded View Chassis 8 Exploded View Chassis Parts List 9 Plain View Chassis 10 Important Notes When Binding Wiring 11 Wiring Diagram Block Diagram 12 Parts List 14 Verifying the Version 16 Test Mode 16 Circuit Board Main Jack Volume PS Inlet Board 18 Circuit Diagram Main Board 1 4 20 Circuit Diagram Main Board 2 4 22 Circuit Diagram Main Board 3 4 24 Circuit D...

Page 2: ...s a service part because one of the following reasons applies Because it is supplied as an assembled part 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...

Page 3: ...phone type FOOT SWITCH CHORUS VIBRATO REVERB DISTORTION jacks 1 4 inch phone type EFFECT LOOP SEND jack 1 4 inch phone type EFFECT LOOP RETURN L MONO R jacks 1 4 inch phone type AC IN jack Power Consumption 43 W Dimensions 592 W x 251 D x 436 H mm 23 5 16 W x 9 15 16 D x 17 3 16 H inches Weight 15 8 kg 34 lbs 14 oz Accessories Owner s manual 5100046052 Power cord 5100029165 5100012292 00894378 034...

Page 4: ...TER R0923NOCV1B103FE00A1 2 This unit includes the following parts VR NUT attached to VR 2 VR WASHER attached to VR 2 6 5100037963 ROTARY POTENTIOMETER R0923NOCH1B103FE00A1 6 This unit includes the following parts VR NUT attached to VR 6 VR WASHER attached to VR 6 7 00125612 KEYTOP BLK GRY 1 01348745 SWITCH PUSH SPUP192700 400 11034 01 00 1 8 5100046593 JACK SPACER 11 9 5100024419 6 5MM JACK PJ 644...

Page 5: ...e Part Name Description Q ty 5100042788 CABINET ASSY W O SPEAKER 1 This unit includes the following parts 1 CABINET 2 NET BOARD ASSY 1 3 22510402 BADGE G AMP 61 1 4 22310207 HANDLE H40 231 207 W ESCUCHEON 2 HOLES 1 5 22340202 PROTECTION CORNER 8 6 5100046034 RUBBER FOOT D25 T12 BLK 4 9 BACK BOARD 1 7 5100046048 SPEAKER W1004 057A 2 8 5100046047 LABEL SPEAKER MAGNET 2 ...

Page 6: ...6 Nov 2015 JC 40 Plain View Cabinet fig bunkaizu cabinet H eps a d e c c b c c f f g g View 1 View 2 View 3 View 4 View 5 View 6 View 7 ...

Page 7: ...W 3X14 OVAL TAPPING A ED BLK 2 No Part Code Part Name Description Q ty c 40010601 SCREW M5X35 ORIGINAL TRUSS MACHINE FE BZC 2 No Part Code Part Name Description Q ty d 40010689 SCREW 4X25 TRUSS TAPPING A FE BZC 4 No Part Code Part Name Description Q ty e 40010678 SCREW 4X20 TRUSS TAPPING A FE BZC 6 No Part Code Part Name Description Q ty f 40560756 FLANGE NUT M4 BZC 8 g 40560756 FLANGE NUT M4 BZC ...

Page 8: ...8 Nov 2015 JC 40 Exploded View Chassis fig bunkaizu chassis eps 2 6 19 18 16 20 17 9 22 14 15 4 5 3 1 7 10 11 12 13 14 21 8 8 g h e i f j k h g c c d d a b 8 23 View 9 V i e w 8 ...

Page 9: ... 5100016080 POWER TRANS 461 11035 01 00 PT AP018 100 117V for low voltage 1 5100016081 POWER TRANSFORMER PT AP018 230 240V for high voltage 1 17 5100046592 TRANS PLATE 2 19 5100033643 AC INLET 610 11017 08 00 M1908 B W CCC MARK 1 20 5100046602 ACETATE TAPE 156A 35X25XT0 25 2 21 5100048346 ACETATE TAPE NITTO 156A BLACK W20MM 30M 22 40342901 SILICONE GREASE G 746 200G 23 40122445 ADHESIVE CEMEDINE S...

Page 10: ...iption Q ty a 40012945 SCREW M3X6 PAN MACHINE W SW PW BZC 2 b 40011112 SCREW 3X10 BINDING TAPTITE B BZC 2 No Part Code Part Name Description Q ty 25 40013812 CAUTION SEAL IEC 142 1 c 40017934 SCREW M3X6 PAN MACHINE W SW PW L FE ZC 15 d 22150580 STANDOFF M3 L5 5 H7 6 e 40011889 EXTERNAL TOOTH WASHER M4 FECM 1 40011767 FLANGE HEX NUT M4 FE ZC 1 ...

Page 11: ...ode fig wiring clamp 1 eps Pass the primary wiring under the transformer so that the wiring does not touch the tip of the screw securing from the side fig wiring clamp 2 e eps Keep away the LED wiring from the fuse fig wiring clamp 3 eps Pass the wiring under the transformer Keep away the wirings from the tip of the screw ...

Page 12: ...VR4 VR5 VR6 VR7 SW800 JK800 JK802 JK801 VR500 VR501 SW500 ADC IC29 No Part Code Part Name Description Q ty W1 5100046167 WIRING 1007 28 15X260 PHR SAN F 1 W2 5100046168 WIRING 1007 28 7X200 PHR SAN F 1 W3 5100046170 WIRING 1007 28 2X230 PHR SAN F 1 W4 5100046171 WIRING W4 1672 22 BLK 2 W5 5100046177 WIRING W5 1015 22 RED 1 W6 5100046178 WIRING W6 1015 22 BLK 1 W7 5100046179 WIRING W7 1015 22 ORG 1...

Page 13: ...MONO R SEND EQ JACK BOARD ANALOG PART POWER TRANSFORMER INLET BOARD POWER LED POWER SWITCH PS BOARD Primary side Secondary side Power Amplifier IC23 Power Amplifier IC10 IC24 IC8 IC21 Left Right JK806 JK803 JK805 JK804 JK808 JK807 IC802 LED600 JK700 EQ W4 W10 W14 W1 W5 W6 W7 W8 RED BLACK BROWN ORANGE ...

Page 14: ...sted parts for replacement CASING 5100042788 CABINET ASSY W O SPEAKER 1 CHASSIS 5100046042 CHASSIS 1 5100046590 HEATSINK 2 5100046592 TRANS PLATE 2 KNOB BUTTON 22485314 JC KNOB 248 314 22485314R0 9 00125612 KEYTOP BLK GRY 1 SWITCH 02897801 SEESAW SWITCH SDDJE13200 94V 0 1 04459978 SLIDE SWITCH SV70050F 0202 10T NN 1 5100042592 SWITCH S171EV114GFS2AN17 1 01348745 SWITCH PUSH SPUP192700 400 11034 01...

Page 15: ... 5 H7 6 5100044181 PLAIN WASHER 4 2X10X1 BZC 7 5100046055 SPRING WASHER 4 4X6 5X1 BZC 7 40230023 SPRING WASHER M4 ZC 2 40011889 EXTERNAL TOOTH WASHER M4 FECM 1 MISCELLANEOUS 22510402 BADGE G AMP 61 1 22310207 HANDLE H40 231 207 W ESCUCHEON 2 HOLES 1 22340202 PROTECTION CORNER 8 5100046591 LED ESCUTCHEON 1 5100046595 POWER SW ESCUTCHEON 1 5100046034 RUBBER FOOT D25 T12 BLK 4 5100046593 JACK SPACER ...

Page 16: ...he INPUT L MONO jack The LED lights up 2 Disconnect the dummy plug The LED goes dark 3 Connect the dummy plug to the INPUT R jack The LED lights up 4 Disconnect the dummy plug The LED goes dark 5 Connect the dummy plug to the PHONES jack The LED lights up 6 Disconnect the dummy plug The LED goes dark 7 Connect the dummy plug to the RETURN L MONO jack The LED lights up 8 Disconnect the dummy plug T...

Page 17: ...nput the following signal to the EFFECT LOOP RETURN L MONO jack RETURN L MONO 1 kHz sine wave at 20 dBm 9 Verify that the output waveform from the speaker terminal is distorted as shown in the figure below fig test eps 10 For the R channel speaker wirings verify in the same way as steps 2 through 9 Color of the R channel speaker wirings are brown and orange Connect the dummy plug to the EFFECT LOO...

Page 18: ...18 Nov 2015 JC 40 Circuit Board Main Jack Volume PS Inlet Board fig b main 1 eps ...

Page 19: ...19 JC 40 Nov 2015 fig b main 2 eps ...

Page 20: ...F C247 0 1uF C217 0 1uF C171 0 1uF C170 12pF C157 15pF C158 R0923NOCH1B103FE00A1 VR5 20 R0923NOCH1B103FE00A1 VR6 20 R0923NOCH1B103FE00A1 VR6 10 R0923NOCH1B103FE00A1 VR3 20 R0923NOCH1B103FE00A1 VR2 20 R0923NOCH1B103FE00A1 VR4 10 R0923NOCH1B103FE00A1 VR4 20 R0923NOCH1B103FE00A1 VR3 10 R0923NOCH1B103FE00A1 VR5 10 R0923NOCH1B103FE00A1 VR2 10 VR6 R0923NOCH1B103FE00A1 1 3 2 VR3 R0923NOCH1B103FE00A1 1 3 ...

Page 21: ...1uF C147 0 1uF C149 0 1uF C141 0 1uF C143 0 1uF C142 0 1uF C144 0 1uF C146 2SC4116SU GR LF D Q23 1 B 2 E 3 C 22k R65 22k R66 2 2k R71 2 2k R75 2 2k R77 22k R83 0 1uF C62 0 1uF C66 0 1uF C79 TC7W08FU TE12L F IC14 5 6 3 TC7W08FU TE12L F IC14 GND 4 VCC 8 2 2k R164 22k R166 0 1uF C154 SPUP192700 SW1 11 13 12 SPUP192700 SW1 21 23 22 UPD800402GJ 211 UEN A ESC IC16 18 27 35 50 62 83 97 115 123 37 42 73 1...

Page 22: ...D Q20 1 B 2 E 3 C 2SC4116SU GR LF D Q1 1 2 3 2SC4116SU GR LF D Q2 1 2 3 C18 47uF 16V C181 470uF 25V C6 4700uF 25V C5 4700uF 25V C59 100uF 16V VE 101M1CTR 0605 C128 1uF 50V C156 1uF 50V FL402 D1 1 2 4 3 0 R115 WR08X000PTL MRT200 F1 1 1 2 2 MRT200 F5 1 1 2 2 MRT200 F9 1 1 2 2 0 1uF C91 0 1uF C98 0 1uF C293 1000pF C295 1000pF C297 1000pF C298 1000pF C299 1000pF C300 1000pF C301 1000pF C302 1000pF C30...

Page 23: ...X000PTL 0 R133 WR08X000PTL 0 R280 WR08X000PTL Q3 2SA1586SU GR LF D 2 3 1 C226 100uF 16V VE 101M1CTR 0605 C227 100uF 16V VE 101M1CTR 0605 C13 100uF 16V VE 101M1CTR 0605 C8 220uF 16V VE 221M1CTR 0607 C7 220uF 16V VE 221M1CTR 0607 C225 470uF 16V VEH471M1CTR 1010 S 1131B15UA N4ATFU IC5 3 VIN 1 VOUT 2 VSS NJM78M08DL1A IC2 1 IN 3 OUT 2 COM NJM79M08DL1A IC3 2 IN 3 OUT 1 COM 0 R89 C55 10uF 16V 1uF C155 0 ...

Page 24: ... D34 2 K1 3 COM 1 A2 1 5k R179 F 1 10k R117 0 1uF C184 C211 10uF 16V 5pF C208 NJM2115V TE1 IC6 4 VEE 8 VDD AG 15pF C111 33k R94 1 22k R95 1 RB706F 40 T106 PB FREE D38 2 K1 3 COM 1 A2 180k R180 1 1M R182 2SK880 GR TE85L F Q26 3 G 1 S 2 D 0 1uF C222 100 R193 RB706F 40 T106 PB FREE D39 2 K1 3 COM 1 A2 AG 1000pF C214 AG AG 1SS362FV TPL3 D35 2 K1 3 COM 1 A2 A 8V 6 8k R181 1 A 8V AG A 8V A 8V 0 1uF C196...

Page 25: ...45 0 1uF C24 0 1uF C9 0 1uF C46 0 1uF C10 IC9 NJM4580M TE2 3 1 2 IC9 NJM4580M TE2 5 7 6 NJM4580M TE2 IC9 4 VEE 8 VDD 1k R74 1 1k R59 1 F 1 5 6k R41 F 1 5 6k R43 C47 10uF 16V 120pF C49 120pF C63 1500pF C48 33k R42 1 33k R44 1 C29 10uF16V C124 10uF16V 120pF C153 1500pF C129 33k R29 1 120pF C152 AK4384ET E2 IC31 9 P S 6 SMUTE CSN 7 ACKS CCLK 8 DIF0 CDTI 1 MCLK 4 LRCK 2 BICK 3 SDTI 5 PDN 13 VSS 12 VCO...

Page 26: ...53 1uF C71 0 22uF C254 0 22uF C72 16V 10uF C109 C78 22uF 16V C77 22uF 16V C103 10uF 16V C92 2 2uF 50V IC8 NJM4580M TE2 3 1 2 IC8 NJM4580M TE2 5 7 6 NJM4580M TE2 IC8 4 VEE 8 VDD IC24 NJM4580M TE2 3 1 2 IC24 NJM4580M TE2 5 7 6 NJM4580M TE2 IC24 4 VEE 8 VDD 25V 0 1uF C32 25V 0 1uF C37 25V 0 1uF C45 25V 0 1uF C54 IC19 NJM4580M TE2 3 1 2 IC19 NJM4580M TE2 5 7 6 NJM4580M TE2 IC19 4 VEE 8 VDD 25V 0 1uF C...

Page 27: ...R224 22k R23 22k R229 50V 1500pF C248 150pF C250 150pF C249 0 1uF C243 0 1uF C241 0 1uF C245 0 1uF C242 0 1uF C95 25V 0 1uF C64 25V 0 1uF C65 1500pF C84 1500pF C90 IC15 NJM4556AM TE2 3 1 2 IC15 NJM4556AM TE2 5 7 6 NJM4556AM TE2 IC15 4 8 C246 10uF 16V C74 100uF 16V C99 100uF 16V 0 R55 0 25W 0 R57 0 25W IC22 NJM4580M TE2 3 1 2 IC22 NJM4580M TE2 5 7 6 NJM4580M TE2 IC22 4 VEE 8 VDD C73 47pF C75 47pF 0...

Page 28: ...17 10uF 16V 0 1uF C828 0 1uF C829 0 1uF C822 1SS362FV TPL3 D800 2 K1 3 3 COM 1 C819 10uF 16V 1SS362FV TPL3 D801 2 K1 3 3 COM 1 100 R804 IC802 NJM4580M TE2 3 1 2 IC802 NJM4580M TE2 5 7 6 NJM4580M TE2 IC802 4 VEE 8 VDD 100 R822 100 R823 56pF C820 56pF C823 56pF C827 TP806 TP807 TP808 TP809 TP810 TP811 TP812 TP813 TP814 TP815 TP816 TP817 TP818 TP819 0 R824 22k R825 1 3 3k R808 1 39k R807 1 3 3k R812 ...

Page 29: ... C815 C804 0 01uF 0 1uF C810 25V 0 1uF 100 R800 2 1 L800 BLM18HD102SN1D 100pF C801 100 R818 56pF C814 56pF C806 390 R819 56pF C807 56pF C808 390 R820 56pF C809 0 1uF C832 25V 0 1uF 0 1uF C833 25V 0 1uF TP800 TP801 TP802 TP803 TP804 TP805 C838 10uF 16V 100k R816 100k R817 100k R826 C839 10uF 16V C840 10uF 16V TER800 PCB 12 1 1 2 2 3 3 4 4 TER801 PCB 12 1 1 2 2 3 3 4 4 PJ 644C 04 EP JK801 1 1 6 6 4 ...

Page 30: ...20 25V 0 1uF C501 1 2 R0923NOCV1B103FE00A1 VR500 20 S171EV114GFS2AN17 SW500 30 C500 0 01uF S171EV114GFS2AN17 SW500 5 COM1 6 COM2 4 NU 3 NU 2 NU 1 NU 10 10 9 9 8 8 7 7 C502 0 01uF C503 0 01uF VR500 R0923NOCV1B103FE00A1 1 1 3 3 2 2 R0923NOCV1B103FE00A1 VR500 10 0 01uF C504 25V 0 1uF C505 1 2 R0923NOCV1B103FE00A1 VR501 20 VR501 R0923NOCV1B103FE00A1 1 1 3 3 2 2 R0923NOCV1B103FE00A1 VR501 10 0 01uF C50...

Page 31: ...IRING W4 1672 22 BLK CN607 5100046171 JC 40 WIRING W4 1672 22 BLK CN608 5100046171 B2P3 VH LF SN 7A 250V CN600 1 3 WIRING 1007 28 2X230 PHR SAN F AP057 W3 CN604 1 1 WIRING 1007 28 2X230 PHR SAN F AP057 W3 CN604 2 2 L 7113 CW914 S LED600 1 A 2 K PSW1 PSW2 HOT COM NC to TRANSFORMER POWER SW SDDJE13200 From INLET BOARD JK700 M1908 B W CCC MARK 1 2 JC 40 WIRING W10 1672 18 BLK WHT CN701 JC 40 WIRING W...

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