Roland MC-808 Service Notes

Mar.2006

CAUTIONARY NOTES ...................................................2

SPECIFICATIONS.............................................................2

LOCATION OF CONTROLS 1 .......................................4

LOCATION OF CONTROLS PARTS LIST 1 ................5

LOCATION OF CONTROLS 2 .......................................6

LOCATION OF CONTROLS PARTS LIST 2 ................7

EXPLODED VIEW 1 .........................................................8

EXPLODED VIEW PARTS LIST 1 .................................. 9

EXPLODED VIEW 2 .......................................................10

EXPLODED VIEW PARTS LIST 2 ................................ 11

EXPLODED VIEW 3 .......................................................12

EXPLODED VIEW PARTS LIST 3 ................................ 13

EXPLODED VIEW 4 .......................................................14

EXPLODED VIEW PARTS LIST 4 ................................ 15

WIRING DIAGRAM.......................................................16

PARTS LIST......................................................................18

CHECKING THE VERSION NUMBER.......................23

FACTORY RESET INSTRUCTIONS ............................23

Saving and loading data.................................................24

Updating the system.......................................................25

MC-808

SERVICE NOTES

Issued by RJA

Test mode .........................................................................26

BLOCK DIAGRAM.........................................................30

CIRCUIT BOARD (MAIN) ............................................32

CIRCUIT BOARD (MAIN) ............................................34

CIRCUIT DIAGRAM (MAIN 1/3) ...............................36

CIRCUIT DIAGRAM (MAIN 2/3) ...............................38

CIRCUIT DIAGRAM (MAIN 3/3) ...............................40

CIRCUIT BOARD (PANEL) ..........................................42

CIRCUIT BOARD (PANEL) ..........................................44

CIRCUIT DIAGRAM (PANEL 1/3) .............................46

CIRCUIT DIAGRAM (PANEL 2/3) .............................48

CIRCUIT DIAGRAM (PANEL 3/3) .............................50

CIRCUIT DIAGRAM (FADER 1/1) .............................52

CIRCUIT BOARD (JACK)..............................................54

CIRCUIT BOARD (JACK)..............................................55

CIRCUIT DIAGRAM (PS 1/1) ......................................56

CIRCUIT DIAGRAM (D-BEAM 1/1)...........................58

CIRCUIT DIAGRAM (JACK 1/1).................................60

Error messages.................................................................62

Printed in Japan (400) (AS-KW)17058394E0

Mar.2006 MC-808

CAUTIONARY NOTES

Before beginning the procedure, please read through this document.

The matters described may differ according to the model.

BACK UP USER DATA!

User data may be lost during the course of the procedure.

Refer to “USERS DATA SAVE AND LOAD” in the Service Notes and save the data.

After completing the procedure, restore the backed-up data to the product.

PART REPLACEMENT

When replacing components near the power-supply circuit or

a heat-generating circuit (such as a circuit provided with

a heat sink or including a cement resistor),

carry out the procedure according to the instructions with

respect to the part number, direction, and

attachment position (mounting so as to leave an

air gap between the component and the circuit board, etc.).

PARTS LIST

A component whose part code is ******** cannot be supplied as 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 price).

CIRCUIT DIAGRAM

In the circuit diagram, ‘NIU’ is an abbreviation for ‘NOT IN USE’.

The circuit board and circuit-board diagram show silkscreened indications,

but no components are mounted.

SPECIFICATIONS

MC-808(08965): Sampling Groovebox

Sound Generator Section

Maximum Poliphony: 128 voices (shared with sampling section)

Sampling Frequency: 44.1 kHz

Parts: 16 (Main) + 16 (RPS)

Waves: 622

Patches

User: 1024 (pre-load: 896)

Card: 1024

Rhythm Sets

User: 256 (pre-load: 128)

Card: 256

Sampling Section

Data Format: 16-bit linear (File Type: WAV/AIFF)

Maximum Poliphony: shared with sound generator section

Sampling Frequency: 44.1 kHz (fixed)

Maximum Sampling Time

When sampling memory isn’t expanded (4MB)

mono: 47 sec. approx., stereo: 23.5 sec. approx.

When sampling memory is expanded with DIMM (516 MB)

mono: 102 min. approx., stereo: 51 min. approx.

Samples

User: 2000

Card: 7000

Sequencer Section

Parts: 16 + Tempo/Mute Control

Resolution: 480 ticks per quarter note

Tempo: 5--300

Maximum Note Storage: approx. 1,300,000 notes

Recordable Number of Measures: 1--998

Patterns

User: 800

Card: 800

Recording Method

Realtime

TR-REC

Step

Songs: 50

Arpeggio Styles: 128

Chord Memory: 128

RPS Sets: 50

Pattern Sets: 50

Effects Section

Reverb: 1 (4 types)

Compressor: 1 (1 type)

Multi-effects: (MFX) 2 / (MFX1, 2: 47 types)

Pitch Shifter (for external input): 1 (1 type)

Mastering Section

3-band Compressor: 1 (1 type)

Expansion Slot

Expansion of sampling memory: DIMM 1 slot

Number of pins: 168-pin

Speed: 100 MHz (PC100 CL=2) / 133 MHz (PC133 CL=3)

Voltage: 3.3 V

Capacity: 128 MB, 256 MB, 512 MB

Board height: 38 mm or less

Mar.2006 MC-808

External Memory

For saving Patterns/Patches/Samples

CompactFlash: 1 slot, Max. 1 GB (3.3 V)

Controllers, Display

Display

20x2 character Type LCD (with Back lit.)

Pattern Number Display: 7 segment 3 character x 2 (LED)

BPM Diplay: 7 segment 4 character (LED)

Control Knobs

OUTPUT Volume: 1

INPUT Volume: 1

Control Sliders

Motorized Fader (60mm): 8

Other Controller

D Beam Controller

Connectors

MIX OUTPUT Jacks (L/MONO, R)

DIRECT OUTPUT Jacks (L, R)

INPUT Jacks (L/MONO/MIC, R)

Headphones Jack

MIDI Connectors (IN, OUT)

USB Connector (Function): MIDI, Mass storage class

DC IN Jack

Power Supply

DC 12 V (AC adaptor)

Current Draw

1500 mA

Dimensions

431 (W) x 327 (D) x 104 (H) mm

17 (W) x 12-7/8 (D) x 4-1/8 (H) inches

Weight

3.4 kg

7 lbs 8 oz

Accessories

Owner’s Manual (English) (#73126945)

Sound & Parameter List (English) (Included in Owner’s Manual)

AC Adaptor (PSB-7U, without Power Code) (#04236112)

CD-ROM (Editor, USB MIDI Driver) (#04236423)

Power Code (120V) (#02562456)

Power Code (230V) (#01903356)

Power Code (240V) (#03785590)

EURO CONVERTER PLUG (#00905234)

(0 dBu = 0.775 V rms)

* In the interest of product improvement, the specifications and/or appearance of

this unit are subject to change without prior notice.

Mar.2006 MC-808

LOCATION OF CONTROLS 1

[TOP PANEL]

6 5

3 4

17 13 11 14

a a

282726

Mar.2006 MC-808

LOCATION OF CONTROLS PARTS LIST 1

[TOP PANEL]

[PARTS].

PART CODE PART NAME DESCRIPTION Q’TY 1 04125512 TOP CASE 1 2 04125545 TOP PANEL 1 3 01900612 TPS611(F) DIODE 1

12169368 LED SPACER LDS-40B 1 4 03126134 TLN233(F) LED(INFRARED) 1

02230578 LED SPACER LDS-50R 1 5 03120889 D S-KEYTOP SX2H-B GRS 1

03120890 D S-KEYTOP SX1H-B GRS 1

01343478 TACT SWITCH SKQNAED010 3

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 3 6 03120889 D S-KEYTOP SX2H-B GRS 4

01343478 TACT SWITCH SKQNAED010 8

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 8 7 04124267 J R-KNOB SF-ELA BLK/SLV 2

03568189 RK12L12C0A0E ROTARY POTENTIOMETER 2 8 04126145 LENS COVER 1

04125567 LED LENS 4

03893601 SLR343BCT3F LED (BLUE) 8

03014945 LED SPACER LH-3-8 8 9 04125623 RUBBER SW C 1

01343478 TACT SWITCH SKQNAED010 4 10 04126167 U S-KNOB M-A 8

04017245 RS60N11M SLIDE POTENTIOMETER 8 11 04126156 PLATE 1 12 04125556 DISPLAY COVER 1 13 03567134 LCD RCM2234M-A 1

02453345 LCD HOLDER 1

02453156 LNJ801TP6JA LED 5 14 01342534 LED 7 SEGMENT SL-9351S 2 15 15029419 LED (7SEGMENT) LA-301VB 4 16 03120889 D S-KEYTOP SX2H-B GRS 2

03120890 D S-KEYTOP SX1H-B GRS 1

01343478 TACT SWITCH SKQNAED010 5

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 5 17 03014223 RUBBER SW B 1 18 03459534 TLSU1002A(TO2) LED(RED) 1

03565401 TLGU1002A(T02) LED(GREEN) 1

03459534 TLSU1002A(TO2) LED(RED) 1 19 22485303 D R-KNOB(ALPHA-DIAL) L BLK 248-303 1

01905467 EVE GC1 F20 24B ROTARY ENCODER 1 20 03120890 D S-KEYTOP SX1H-B GRS 3

03120889 D S-KEYTOP SX2H-B GRS 3

01343478 TACT SWITCH SKQNAED010 9

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 1 21 03120890 D S-KEYTOP SX1H-B GRS 1

01343478 TACT SWITCH SKQNAED010 1

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 1 22 03120890 D S-KEYTOP SX1H-B GRS 16

01343478 TACT SWITCH SKQNAED010 16

15029348 SLR-342MCT32 LED (GREEN) 16 23 03120890 D S-KEYTOP SX1H-B GRS 8

01343478 TACT SWITCH SKQNAED010 8

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 8 24 03120890 D S-KEYTOP SX1H-B GRS 1

01343478 TACT SWITCH SKQNAED010 1 25 03120889 D S-KEYTOP SX2H-B GRS 2

01343478 TACT SWITCH SKQNAED010 4

01904112 SLR-342VCT32 N.P.Q RANK LED(RED) 4 26 00785856 SLR-342VR3F LED(RED) 4

12169406 LED SPACER LDS-100Y 10MM 4 27 04125601 RUBBER SW A 1

03459534 TLSU1002A(TO2) LED(RED) 8 28 04125612 RUBBER SW B 1

03459534 TLSU1002A(TO2) LED(RED) 9

[SCREW]

No. PART CODE PART NAME DESCRIPTION Q’TY a 02126156 SCREW M3X10 HEX SOCKET HEAD CAP TAPTITE P 8

Mar.2006 MC-808

LOCATION OF CONTROLS 2

[REAR PANEL]

MC808_rear.eps

29 30 32

31 34

Mar.2006 MC-808

LOCATION OF CONTROLS PARTS LIST 2

[REAR PANEL]

[PARTS]

No.

PART CODE PART NAME DESCRIPTION Q’TY

29 12499175 BUTTON JSPUE0011A 1

01676512 PUSH SWITCH SDKLA10200 1 30 03018789 DC JACK HEC2305-01-260 1 31 22365714 CORD HOOK 1 32 13429825 MIDI CONNECTOR YKF51-5054V 1 33 02781189 USB CONNECTOR B TYPE FEMALE YKF45-0021 1 34 00120434 6.5MM JACK YKB21-5262 7

[SCREW]

No. PART CODE PART NAME DESCRIPTION Q’TY b 40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 5 c 40230590 SCREW M3X10 BINDING MACHINE NI 1 d 40011312 SCREW 3X10 BINDING TAPTITE P BZC 3

Mar.2006 MC-808

EXPLODED VIEW 1

fig.bunkai.eps

TOP

Refer Fig.2

REAR

Refer Fig.1

BOTTOM

Mar.2006 MC-808

EXPLODED VIEW PARTS LIST 1

PART CODE PART NAME DESCRIPTION Q’TY

No 1 04124267 J R-KNOB SF-ELA BLK/SLV 2 2 04126167 U S-KNOB M-A 8 3 04126156 PLATE 1 4 04125545 TOP PANEL 1 5 04126145 LENS COVER 1 6 04125556 DISPLAY COVER 1 7 22485303 D R-KNOB(ALPHA-DIAL) L BLK 248-303 1 8 04125567 LED LENS 4 9 22365714 CORD HOOK 1 10 12499175 BUTTON JSPUE0011A 1 11 04125512 TOP CASE 1 12 04125623 RUBBER SW C 1 13 73126856 D-BEAM KEYTOP ASSY 1 14 04125601 RUBBER SW A 1 15 04125612 RUBBER SW B 1 16 03014223 RUBBER SW B 1 17 73126890 PANEL KEYTOP ASSY Include in PANEL BOARD ASSY 1 18 02890945 CLAMP LWSM-0605 1 19 04125578 PWB HOLDER MAIN 1 20 73126834 JACK BOARD ASSY 1 21 73126845 PS BOARD ASSY 1 22 03239989 PWB SPACER WLS-10-0 1 23 12199579 CARD SPACER KGLS-5RT 1 24 04236978 EMC GASKET RFSG-060100 L=30 1 25 73126801 MAIN BOARD ASSY 1 26 04125523 BOTTOM CASE 1 27 04233334 CF COVER 1 28 04126134 DIMM COVER 1 29 01235378 FOOT 4 30 73126912 FADER BOARD ASSY 1

Mar.2006 MC-808

EXPLODED VIEW 2

fig.betu1.eps

Fig.1

Fig.2

Mar.2006 MC-808

EXPLODED VIEW PARTS LIST 2

[Fig.1]

PART CODE PART NAME DESCRIPTION Q’TY 30 73126912 FADER BOARD ASSY 1 31 04125589 FADER HOLDER 1 32 04017245 RS60N11M SLIDE POTENTIOMETER 8

[Fig.2]

No PART CODE PART NAME DESCRIPTION Q’TY 17 73126890 PANEL KEYTOP ASSY 1 33 03120889 D S-KEYTOP SX2H-B GRS 11 +1 34 03120890 D S-KEYTOP SX1H-B GRS 30 +1 35 02453345 LCD HOLDER 1 36 01905467 EVE GC1 F20 24B ROTARY ENCODER 1 37 03568189 RK12L12C0A0E ROTARY POTENTIOMETER 2 38 03567134 LCD RCM2234M-A 1

Mar.2006 MC-808

EXPLODED VIEW 3

fig.hei-1.eps

TOP

REAR

BOTTOM

Mar.2006 MC-808

EXPLODED VIEW PARTS LIST 3

[TOP]

PART CODE PART NAME DESCRIPTION Q’TY a 02126156 SCREW M3X10 HEX SOCKET HEAD CAP TAPTITE P 8

[REAR]

No PART CODE PART NAME DESCRIPTION Q’TY b 40237101 SCREW M3X8 PAN MACHINE W/SW+SMALL PW BZC 5 c 40230590 SCREW M3X10 BINDING MACHINE NI 1 d 40011323 SCREW 3X10 BINDING TAPTITE P BZC 3

[BOTTOM]

No PART CODE PART NAME DESCRIPTION Q’TY d 40011323 SCREW 3X10 BINDING TAPTITE P BZC 12

Mar.2006 MC-808

EXPLODED VIEW 4

fig.hei-2.eps

+ 32 hidden pages

Roland MC-808 Service Notes

TABLE OF CONTENTS

CAUTIONARY NOTES

SPECIFICATIONS

LOCATION OF CONTROLS 1

LOCATION OF CONTROLS PARTS LIST 1

LOCATION OF CONTROLS 2

LOCATION OF CONTROLS PARTS LIST 2

EXPLODED VIEW 1

EXPLODED VIEW PARTS LIST 1

EXPLODED VIEW 2

EXPLODED VIEW PARTS LIST 2

EXPLODED VIEW 3

EXPLODED VIEW PARTS LIST 3

EXPLODED VIEW 4