Roland JP-8080 Service Notes Download Page 17

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R X D 1

Flash ROM

0.1*3

T X D 0

R X D 0

S R A M * 2

( 2 2 * 4 ) * 5

E - C L K

A 1 9

D 1 2

D 9

D 1 5

A N 7

X C S 1

X R D

A 1 5

X C S 1

X L W R

W P - C N T

D 8

D 1 0

D 1 5

D 1 3

A N 2

A N 5

L S C - E N 0

D 6

X H W R

P W M

L C D 1

L C D 3

S C 2

S D 1

S D 3

D 1 3

D 1 1

V R 2 4 - 1 7

S L D 6

S L D 4

X L W R

A 1 6

A 1 9

L C D _ C N T

S C 0

D 1 5

D 1 4

A N 4

V R 4 8 - 4 1

X E J E C T

S L D 2

X L W R

X L C D

A 1 9

D 1 0

D 8

D 1 5

D 1 0

X C S 0

V R 1 6 - 9

X H W R

A D C 0

D 7

X E C S 2

S C 3

D 1 3

L S C 2

A D C 1

L S C - E N 0

X C S 0

X C A R D

S C 6

D 1 5

D 1 3

D 1 1

A N 3

I N V 1 6

S L D 7

I N V 1 6

V P P - C N T

S C 4

D 1 0

D 1 4

D 9

D 8

D 1 5

D 1 4

B A T S E N S

V R 4 0 - 3 3

X L W R

L S C 1

X R D

A D C 0

X C C T L

L C D 5

L C D 4

S D 6

D 1 4

D 1 2

T X D 0

S L D 0

E S P I N T 1

L C D 0

S D 0

D 1 1

X E J E C T

M I C _ S E L E C T

X H W R

A D C 1

X E C S 1

S C 5

S C 1

S D 2

D 1 4

D 1 1

S L D 5

L S C 0

D 6

X H W R

S D 7

S D 5

X R D

D 9
D 8

D 1 1

D 6

L S C 1

L E N 0

L S C - E N 1

P W M

X E C S 0

D 1 2

V R 3 2 - 2 5

V R 8 - 1

A D C 2

D 7

L S C - E N 1

E S P D A C _ L

X R D

A 1 4

X C S 2

A 1 9

L C D 2

S D 4

D 8

D 9

D 1 3

A N 6

X C S 0

X C S _ S

L S C 0

L S C 2

S L D 3

X L C D

A 2

X E C S 4

L C D 1 0

L C D 6

S C 7

D 1 0

D 9

X C S 2

X R E S

X C S _ S

A D C 2

X E C S 3

L C D 9

W P - C N T

D 1 2

D 9

D 1 1

S L D 1

X R D

A 1

L C D 8

L C D 7

L E 0

X H W R

D 1 0

D 1 3

D 1 2

X C S 1

M I C _ S E L E C T

E S P I N T 1

X C S _ S

R X D 0

R X D 1

S D [ 0 . . 7 ]

A N [ 2 . . 7 ]

S C [ 0 . . 7 ]

D[8..15]

D [ 8 . . 1 5 ]

L C D [ 0 . . 1 0 ]

X R E S

V b a t

D 7
D 6

X C S 2

X C B S Y

B A T S E N S

X C S 2

D 0

A 1 4
A 1 3

A 5

A 0

E 4 _ I N T 0

A 1

A 1 7

A 1 7
A 1 6

D 3

A 5

D 4

A 1

A 1 1

A 6

D 0

A 1 4

D 0

A 8

D 1

D 4

A 7

A 1 8

A 1 4

A [ 0 . . 1 8 ]

A 1 2

D 4

A 1 7

A 1 8

D 3

A 2

A 1 0

A 4

A 9

A 2

A 1 2

A 3

D 2

D 4

A 7

D 0

A 3

A 1 6

D 3

D 5

A 1 0

A 4

A 1 3

E 2 _ I N T 0

A 8

A 1 5

A 9

D 2

A 1 7

A 4

A 1 3

E 1 _ I N T 0

A 8

A 3

A 1 6

D 5

A 4

D 0

A 1 4

D 5

A 1 5

A 1 1

D 1

A 8

A 1 5

A 9

A 2

A 1 2

A 3

A 1

D 5

A 1 0

A 7

E 3 _ I N T 0

D 1

D 2

D 4

A 1

A 1 6

A 5

D 1

A 1 1

A 1 2

A 6

D 2

A 1 0

A 1 8

C W P S N S

D 1

A 6

D 2

A 1

D 5

A 7

A 0

E 0 _ I N T 0

A 1 1

X R D

+ 5

- 15

+ 5

- 15

+ 5

+ 15

- 15

+ 5

R 1 5

1 0 k

R 2 9

1 0 0

R A 4

I C 4

T C 7 4 H C 5 7 4 A F

D 7

D 6

D 5

D 4

D 3

D 2

D 1

D 0

O E

C K

1 1

Q 7

1 2

Q 6

1 3

Q 5

1 4

Q 4

1 5

Q 3

1 6

Q 2

1 7

Q 1

1 8

Q 0

1 9

VCC

GND

I C 5 A

T C 7 4 V H C 1 3 9 F

Y 3

Y 2

Y 1

Y 0

R 2 5 0

4 7 k

C 7 1

0 . 1

C 7 3

1 5 P

R 1 7

1 0 0

I C 3 A

T C 7 4 H C 7 4 F

C K

I C 1 0 B

T C 7 4 H C 7 4 F

1 2

C K

1 1

R 3 0
1 0 0

C 7 8

1 0 0 0 P

X 1 1 6 M

R A 8

1 0 0

R A 1 6

1 0 0

C 7 9

1 0 0 P

C 6 6

0 . 1

I C 1 0 A

T C 7 4 H C 7 4 F

C K

C 6 1

0 . 1

C 6 2

1 0 0 0 P

I C 1 6

T C 7 4 V H C 1 3 8 F

G 2 B

G 2 A

G 1

Y 7

Y 6

Y 5

1 0

Y 4

1 1

Y 3

1 2

Y 2

1 3

Y 1

1 4

Y 0

1 5

VCC

GND

R 2 4 7

4 7 k

C 7

1 0 0 0 P

R 1

1 0 0

D A 1

D A 2 0 4 U

R A 1 0

1 0 0

R A 5

R A 6

Q 2

D T A 1 1 4 E K

R A 1 5

R C E 9 A @ J A
1 0 k

2
3
4
5
6
7
8
9

I C 7

H D 6 4 1 3 0 0 2 F P

A 1 9

5 8

A 1 8

5 7

A 1 7

5 6

A 1 6

5 5

A 1 5

5 4

A 1 4

5 3

A 1 3

5 2

A 1 2

5 1

A 1 1

5 0

A 1 0

4 9

A 9

4 8

A 8

4 7

A 7

4 5

A 6

4 4

A 5

4 3

A 4

4 2

A 3

4 1

A 2

4 0

A 1

3 9

A 0

3 8

D 1 5

3 6

D 1 4

3 5

D 1 3

3 4

D 1 2

3 3

D 1 1

3 2

D 1 0

3 1

D 9

3 0

D 8

2 9

D 7 / P 4 - 7

2 8

D 6 / P 4 - 6

2 7

D 5 / P 4 - 5

2 6

D 4 / P 4 - 4

2 5

D 3 / P 4 - 3

2 3

D 2 / P 4 - 2

2 2

D 1 / P 4 - 1

2 1

D 0 / P 4 - 0

2 0

L W R

7 4

H W R

7 3

R D

7 2

A S

7 1

P H A I

6 3

B A C K / P 6 - 2

6 2

B R E Q / P 6 - 1

6 1

W A I T / P 6 - 0

6 0

C S 0 / P 8 - 4

9 3

C S 1 / I R Q 3 / P 8 - 3

9 2

C S 2 / I R Q 2 / P 8 - 2

9 1

C S 3 / I R Q 1 / P 8 - 1

9 0

R F S / I R Q 0 / P 8 - 0

8 9

R E S

6 5

R E S O

1 2

M D 2

7 7

M D 1

7 6

M D 0

7 5

S T B Y

6 4

N M I

6 6

P 9 - 5 / S C K 1 / I R Q 5

1 9

P 9 - 4 / S C K 0 / I R Q 4

1 8

P 9 - 3 / R X D 1

1 7

P 9 - 2 / R X D 0

1 6

P 9 - 1 / T X D 1

1 5

P 9 - 0 / T X D 0

1 4

P B - 7 / T P 1 5 / D R E Q 1

1 1

P B - 6 / T P 1 4 / D R E Q 0

1 0

P B - 5 / T P 1 3

P B - 4 / T P 1 2

P B - 3 / T P 1 1

P B - 2 / T P 1 0

P B - 1 / T P 9

P B - 0 / T P 8

A N 7 / P 7 - 7

8 7

A N 6 / P 7 - 6

8 6

A N 5 / P 7 - 5

8 5

A N 4 / P 7 - 4

8 4

A N 3 / P 7 - 3

8 3

A N 2 / P 7 - 2

8 2

A N 1 / P 7 - 1

8 1

A N 0 / P 7 - 0

8 0

V R E F

7 9

A V C C

7 8

A V S S

8 8

P A 7 / T P 7 / A 2 0

P A 6 / T P 6 / A 2 1

P A 5 / T P 5 / A 2 2

1 0 0

P A 4 / T P 4 / A 2 3

9 9

P A 3 / T P 3 / T C L K D

9 8

P A 2 / T P 2 / T C L K C

9 7

P A 1 / T P 1 / T C L K B

9 6

P A 0 / T P 0 / T C L K A

9 5

E X T A L

6 8

X T A L

6 9

VCC

VSS

I C 9 A

T C 7 4 H C 3 2 A F

R 2 2
1 0

C 7 5

1 5 P

R 1 0

1 0 k

R 8

N I U

R 2 4

1 k

R 9

0 R 0

R 2 4 8

4 7 k

I C 5 8
T C 7 S 0 4 F

R A 1 4

1 0 0

I C 9 B

T C 7 4 H C 3 2 A F

R 1 2

1 0 k

R 1 3

1 0 0 k

R 2 4 3

4 7 k

R 2 4 2

4 7 k

R 2 7

1 0 0

R A 1 1

R C E 9 A @ J A
1 0 k

2
3
4
5
6
7
8
9

C 6 0

0 . 1

I C 6 2

L H 2 8 F 8 0 0 S U T - 7 0 @

A 1 9

A 1 8

A 1 7

A 1 6

A 1 5

1 0

A 1 4

1 1

A 1 3

1 2

A 1 2

1 3

A 1 1

1 7

A 1 0

1 8

A 9

1 9

A 8

2 0

A 7

2 2

A 6

2 3

A 5

2 4

A 4

2 5

A 3

2 6

A 2

2 7

A 1

2 8

A 0

3 2

R Y / B Y

5 3

C E 1

C E 0

1 4

W E

5 5

O E

5 4

W P

5 6

B Y T E

3 1

R P

1 6

3 / 5

D Q 1 5

5 2

D Q 1 4

5 0

D Q 1 3

4 7

D Q 1 2

4 5

D Q 1 1

4 1

D Q 1 0

3 9

D Q 9

3 6

D Q 8

3 4

D Q 7

5 1

D Q 6

4 9

D Q 5

4 6

D Q 4

4 4

D Q 3

4 0

D Q 2

3 8

D Q 1

3 5

D Q 0

3 3

N C

2 9

N C

3 0

V P P

1 5

V C C

3 7

V C C

4 3

V S S

2 1

V S S

4 2

V S S

4 8

Q 1
2 S C 4 0 8 1

R 2 4 0

4 7 k

R A 9

R A 1 2

1 0 0

R 1 4

1 0 k

R 2 4 1

4 7 k

R A 7

I C 5 B

T C 7 4 V H C 1 3 9 F

1 3

1 4

1 5

Y 3

Y 2

1 0

Y 1

1 1

Y 0

1 2

R 2 4 9

4 7 k

C 6 7

0 . 1

R 1 8 1 0 0

C 8 7

0 . 1

C 5

1 0 0 0 P

R 2

1 0 0

R A 1 3

1 0 0

C 6

1 0 0 0 P

R 3

1 0 0

I C 9 D

T C 7 4 H C 3 2 A F

1 2

1 3

1 1

C 8 0

N I U

C 8 6

0 . 1

I C 1 4 B

M 5 2 3 8 A F P

I C 1 4 C
M 5 2 3 8 A F P

C 8 1

0 . 1

C 8 4

0 . 1

C 8 5

0 . 1

C 8 2

0 . 1

C 8 3

0 . 1

I C 9 E

T C 7 4 H C 3 2 A F

C 5 7

4 7 / 1 6

I C 1 3

T C 5 5 1 0 0 1 B F L - 7 0 L

A 1 6

A 1 5

3 1

A 1 4

A 1 3

2 8

A 1 2

A 1 1

2 5

A 1 0

2 3

A 9

2 6

A 8

2 7

A 7

A 6

A 5

A 4

A 3

A 2

1 0

A 1

1 1

A 0

1 2

C E 2

3 0

C E 1

2 2

R / W

2 9

O E

2 4

I / O 8

2 1

I / O 7

2 0

I / O 6

1 9

I / O 5

1 8

I / O 4

1 7

I / O 3

1 5

I / O 2

1 4

I / O 1

1 3

N C

V D D

3 2

V S S

1 6

I C 1 1

T C 5 5 1 0 0 1 B F L - 7 0 L

A 1 6

A 1 5

3 1

A 1 4

A 1 3

2 8

A 1 2

A 1 1

2 5

A 1 0

2 3

A 9

2 6

A 8

2 7

A 7

A 6

A 5

A 4

A 3

A 2

1 0

A 1

1 1

A 0

1 2

C E 2

3 0

C E 1

2 2

R / W

2 9

O E

2 4

I / O 8

2 1

I / O 7

2 0

I / O 6

1 9

I / O 5

1 8

I / O 4

1 7

I / O 3

1 5

I / O 2

1 4

I / O 1

1 3

N C

V D D

3 2

V S S

1 6

I C 1 4 A

M 5 2 3 8 A F P

C 7 7
0 . 1

D A 2 0
D A N 2 0 2 K

R 2 0
1 0 k

C 7 4

1 0 0 P

R 1 1

1 0 k

R 1 9

1 0 k

R 2 5
1 0 0

R 2 1

1 0 0

C 6 9

0 . 1

B T 1

C R 2 0 3 2 B H

R 2 3

1 0 k

Q 4

D T C 1 1 4 E K

R 2 6

1 0 0 k

Q 3

2 S A 1 5 7 6 A

D A 3

D A 2 0 4 U

D A 5

D A 2 0 4 U

C 6 8

0 . 1

C 6 4

D A 2

D A 2 0 4 U

I C 5 C

T C 7 4 V H C 1 3 9 F

VCC

GND

D A 8

D A 2 0 4 U

D A 7

D A 2 0 4 U

I C 1 0 C

T C 7 4 H C 7 4 F

VCC

GND

C 7 6

0 . 1

I C 3 B

T C 7 4 H C 7 4 F

1 2

C K

1 1

C 6 3

D A 4

D A 2 0 4 U

R 1 6

1 0 k

C 7 2

0 . 1

C 7 0

1 0 / 1 6

C 6 5

D A 6

D A 2 0 4 U

I C 3 C

T C 7 4 H C 7 4 F

VCC

GND

I C 1 2

T C 7 4 H C 3 6 5 F

6 A

1 4

5 A

1 2

4 A

1 0

3 A

2 A

1 A

G 2

1 5

G 1

6 Y

1 3

5 Y

1 1

4 Y

3 Y

2 Y

1 Y

VCC

GND

I C 9 C

T C 7 4 H C 3 2 A F

1 0

I C 1 5

T C 7 S 0 0 F

CIRCUIT DIAGRAM
CPU BLOCK

JP-8080

Jul, 1998

Summary of Contents for JP-8080

Page 1: ...FX 13 types SUPER CHORUS SLW SUPER CHORUS MID SUPER CHORUS FST SUPER CHORUS CLR FLANGER SLOW FLANGER DEEP FLANGER FAST DEEP PHASING SLW JET PHASING TWISTING FREEZE PHASE 1 FREEZE PHASE 2 DISTORTION D...

Page 2: ...inch phone type VOCAL UPPER 1 4 inch phone type MIC jack 1 4 inch phone type Headphone jack Stereo 1 4 inch phone type Input Level External Input jacks INST LOWER MONO 30dBm 4dBm VOCAL UPPER 30dBm 4d...

Page 3: ...TOP SD1H BLK 8 01340290 PTR TACT SWITCH EVQ11A H 5 0 8 00348490 PTR LED SLR 325VCT31 8 3 00900145 D S KEYTOP SD1H BLK 01340290 PTR TACT SWITCH EVQ11A H 5 0 1 15029342 LED GL3ED8 1 4 01013023 D S KEYTO...

Page 4: ...D 25X240 A6 0BBR P1 25 HBL10 6 01568267 FUJI CARD 35X220 A6 0BBR P1 25 HBL10 7 01568512 RIBON CABL 3X70 P2 0 8 01568534 RIBON CABL 4X90 P2 0 9 00789856 RIBON CABL 5X200 P2 0 0 01568245 RIBON CABL 7X12...

Page 5: ...CN4 on PB 13429294 51048 0500 CN2 on PB 13429296 51048 0700 CN3 on PB 01341178 Card Connector CN015S 3013 0 CN202 on CB 13369898 B2P3 VH 7A 250V CN301 on SB 13369598 52147 0310 CN401 on MIB 13429293 5...

Page 6: ...670378 MANUAL PAD 40236612 VINYL BAG MIRROR MAT 0 5 600 460 MISCELLANEOUS 01346312 CARD PROTECTOR 40126812 CAUTION LABEL BARRIER 40016512 INSULOK TIE 80M M T 18S 00238956 Battery Holder CR2032BH BT1 o...

Page 7: ...NC several times to select USER CARD 6 Press WRITE 7 Press DEC or INC several times to select ALL 8 Press WRITE The following display of confirmation appears on the LCD 9 Press WRITE The saving the us...

Page 8: ...sion upgrade at this point by pressing EXIT Check that the display in Fig 2 appears 4 Load the file into sequencer Load in sequence from vvv_01 MID 5 Play the song Fig 3 appears on the JP 8080 display...

Page 9: ...Check each point according to the error message 2 MIDI Test 1 fig 2 is shown on the LCD 2 Connect MIDI IN and MIDI OUT with a MIDI cable Is OK shown on the LCD If OK does not indicated there in some...

Page 10: ...ght of the LCD change within the ranges listed below as each volume or slider is moved Volumes and sliders without center click 0 127 OSC2 RANGE WIDE WIDE OSC2 FINE WIDE 50 50 TEMPO 20 250 Other volum...

Page 11: ...a F5 and Sol G5 are issued in order After they are formed a chord Fa F5 and So G5 are stopped 15 Does the output waveform contain noise If error Check IC19 DSP IC24 DRAM and their connections on the M...

Page 12: ...e oscilloscope 11 Does the SIG LIMITER LED of VOCAL UPPER light up red If error Check IC44 IC50 IC53 IC54 Q7 Q9 Q15 Q16 Q17 Q18 Q23 CN3 and CN6 on the MAIN BOARD Check D85 LED CN2 and CN3 on the PANEL...

Page 13: ...C8 IC10 IC11 HC138 IC3 IC13 HC273 IC7 OP AMP 4570 IC1 IC5 IC9 2SC1815 Q7 Q14 RN2226 Q1 Q6 Q15 Q22 AC IN Lower Upper Voltage Follower Gain 0dB OP AMP 4570 IC43B Mic AMP Gain 30dB OP AMP 4570 IC50 PHONE...

Page 14: ...Q R S T U 14 PANEL BOARD ASSY 71017556 CARD BOARD ASSY 71017567 MIC BOARD ASSY 71017589 SW BOARD ASSY 71017578 PHONES BOARD ASSY 71017590 View from component side Jul 1998 PANEL BOARD ASSY 71017556 C...

Page 15: ...O P Q R S T U 15 View from foil side PANEL BOARD ASSY 71017556 CARD BOARD ASSY 71017567 MIC BOARD ASSY 71017589 SW BOARD ASSY 71017578 PHONES BOARD ASSY 71017590 PANEL BOARD ASSY 71017556 CARD BOARD A...

Page 16: ...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 A B C D E F G H I J K L M N O P Q R S T U 16 View from component side MAIN BOARD ASSY 71017534 View from foil side JP 8080 Jul 1...

Page 17: ...4 5 2 6 D4 P4 4 2 5 D3 P4 3 2 3 D2 P4 2 2 2 D1 P4 1 2 1 D0 P4 0 2 0 L W R 7 4 H W R 7 3 R D 7 2 AS 7 1 PHAI 6 3 BACK P6 2 6 2 B R E Q P 6 1 6 1 WAIT P6 0 6 0 C S 0 P 8 4 9 3 CS1 IRQ3 P8 3 9 2 CS2 IRQ2...

Page 18: ...3 3 2 1 0 9 8 7 6 5 4 3 1 3 1 4 1 5 2 9 1 1 1 1 1 2 1 1 3 1 1 4 1 1 5 1 1 6 1 1 7 1 1 8 1 2 0 1 2 1 1 2 2 1 2 3 1 2 4 1 2 5 1 2 8 1 2 9 1 3 0 1 3 1 1 1 2 1 8 3 0 4 1 5 4 7 2 9 0 1 0 8 1 0 9 1 2 6 1 3...

Page 19: ...4 5 10 16 IC34A T C 7 4 H C 7 4 F D 2 C K 3 Q 5 Q 6 P R 4 C R 1 C 2 4 6 4 7 0 P R 6 7 1 0 C 2 5 1 10 16 C 3 2 5 2 2 50 I C 3 3 B T C 7 W 0 4 F 3 5 C 2 4 2 10 16 I C 3 6 U P D 6 3 2 0 0 G S D V D D 4...

Page 20: ...5 4 B M 5 2 1 8 A F P 6 5 7 R 1 8 4 3 3 k R 1 1 3 3 3 k R 1 3 8 1 5 0 k C 2 7 7 4 7 P C 3 2 7 1 5 0 P C 2 7 6 22 16 I C 5 1 B U P C 4 5 7 0 G 6 5 7 R 1 9 0 2 7k R 1 5 2 1 5 0 k R 1 4 9 1 M C 2 5 6 1...

Page 21: ...0 P C 2 9 1 1 0 0 0 P C 2 9 5 10 16 2 1 R 1 7 6 2 2 k R 1 7 3 2 2 k R 1 6 5 2 2 k I C 5 6 B M 5 2 1 8 A F P 6 5 7 R 2 1 1 1 0 0 k Q 1 3 2 S C 4 0 8 1 1 2 3 R 2 0 81 0 0 k R 2 0 6 1 0 0 k C 2 7 8 1 0...

Page 22: ...1k IC47 PC410 6 4 1 3 5 R121 220 R133 3 3k R127 220 R128 3 3k Q5 2SA1576A 1 3 2 R145 4 7k R124 100k R122 220 C265 100 6 3 2 1 JK1 YKF51 5041 4 2 5 4 2 5 4 2 5 12 14 15 19 10 22 24 25 29 20 32 34 35 39...

Page 23: ...C239 0 1 IC38B TC7W08F 5 6 3 C238 0 1 R100 10k IC40 T C 74HCT245AF A8 9 A7 8 A6 7 A5 6 A4 5 A3 4 A2 3 A1 2 G 19 DIR 1 B8 11 B7 12 B6 13 B5 14 B4 15 B3 16 B2 17 B1 18 VCC 20 GND 10 CN5 IL FPC 25ST N 1...

Page 24: ...C27 C34 C40 C39 C42 C21 C38 CN11 52045 3510 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 9 9 10 10 11 11 12 12 13 13 14 14 15 15 16 16 17 17 18 18 19 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 29...

Page 25: ...1 2 SW42 EVQ11A 1 2 SW49 EVQ11A 1 2 SW57 EVQ11A 1 2 SW58 EVQ11A 1 2 SW7 EVQ11A 1 2 SW21 EVQ11A 1 2 SW29 EVQ11A 1 2 R26 100 C10 0 1 C26 0 1 C27 0 1 C16 0 1 SW59 EVQ11A 1 2 SW36 EVQ11A 1 2 SW33A SKHJGS...

Page 26: ...8 2 R K R X E 1 2 Q 2 2 R N 2 2 2 6 3 2 1 Q 2 1 R N 2 2 2 6 3 2 1 Q 2 0 R N 2 2 2 6 3 2 1 D 1 2 0 L N J 2 8 2 R K R X E 1 2 D 1 2 2 L N J 2 8 2 R K R X E 1 2 D 1 2 9 L N J 2 8 2 R K R X E 1 2 D 1 4 3...

Page 27: ...1B 10 20 VR40B 10 20 VR35B 10 20 JK501 YKB21 5268 1 2 3 10 CN301 B2P3 VH 1 1 2 2 JK401 YKB21 5277 1 2 3 4 10 R601 100k R602 100k VR601A EVJ Y15 F02 A53 11 12 13 VR601B EVJ Y15 F02 A53 21 22 23 C41 10...

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Roland JP-8080, Service Notes

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Summary of Contents for JP-8080

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