Roland Dr. Sample SP-303, Service Notes

8

Mar.2001

SP-303

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)

MB –> MAIN BOARD ASSY,  SB –> SW BOARD ASSY

CASING

#

02451767

TOP CASE

1

#

02451812

CARD COVER

1

#

02451823

PANEL SHEET

1

CHASSIS

#

02452423

BOTTOM COVER

1

KNOB, BUTTON

#

02457512

J R-KNOB

SFA BLK/LCG

4

SWITCH

#

02451845

RUBBER SW

PAD

1

#

02451978

RUBBER SW

EFFECT

1

#

02452134

SLG-12-465A

SLIDE SWITCH

SW1  on MB

1

JACK, SOCKET

00569278

LGR4609-7100

6.5MM JACK

JK7,JK9 on MB

2

13449645

YKC21-3049 (4P) RED/WHITE

JACK (PIN)

JK8 on MB

1

13449720

HEC2305-01-250

DC JACK

JK6 on MB

1

13429672

YKF51-5047

MIDI CONNECTOR

JK5 on MB

1

01780712

CN015P-3013-0

CARD CONNECTOR

CN1 on MB

1

DISPLAY UNIT

00239767

LB-603VF

LED (7SEG.)

LED35 on SB 

1

NOTE: Replacement LB-603VF should be made on a unit base.

PCB ASSY

#

71785956

PWB ASSY

(EXG)

1

NOTE: ‘PWB ASSY’ includes the following parts.

#

  ********

MAIN BOARD ASSY

Assy

1

NOTE: ‘MAIN BOARD ASSY’ includes the following parts.

#

    02568645

MAIN SHIELD

SHIELD

1

#

    02568656

SHIELD COVER

SHIELD

1

    01786712

ESCUTCHEON

1

    40011278

SCREW 3x8

BINDING TAPTITE P FE ZC

2

#

  ********

SW BOARD ASSY

Assy

1

NOTE: ‘SW BOARD ASSY’ includes the following parts.

#

    02671167

RIBBON CABLE

JWFV 11x125 - P2.0

CN3 on MB to CN9 on SB

1

#

    02671190

RIBBON CABLE

JWFV 5x125 - P2.0

CN12 on MB to CN15 on SB  

1

#

    02671178

RIBBON CABLE

JWFV 13x150 - P2.0

CN5 on MB to CN10 on SB

1

#

    02671189

RIBBON CABLE

JWFV 14x125 - P2.0

CN6 on MB to CN8 on SB

1

#

    02568590

LEAF

1

#

    40126389

SPACER POLYCA PIPE 3.2x5x2.5

1

IC

#

02673712

UPD703101AGJ-33-R02

IC (16BIT CPU)

IC23 on MB

1

01235190

TC203C040AF-001(FP)

IC (MR2 CHIP)

IC9 on MB

1

01783123

LH28F400BVE-BL85

IC (FLASH MEMORY/BLANK)

IC22 on MB

1

#

02453934

MBM29LV800BA-70PFTN-SFK

IC (FLASH MEMORY/BLANK)

IC24  on MB 

1

01780112

AK4522VF

IC (AD/DA)

IC35 on MB 

1

02121556

LC24085B-SD1

IC (I/F)

IC14 on MB 

1

01902212

UPD431000AGW-70LL-E2

IC (SRAM)

IC13 on MB 

1

#

02453389

LC32V4265T-25

IC (DRAM)

IC27 on MB 

1