Boss DR-3 Service Notes

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Copyright © 2003 ROLAND CORPORATION

All rights reserved. No part of t

All rights reserved. No part of this publication may be reproduced in any form without the written permission

his publication may be reproduced in any form without the written permission

of ROLAND CORPORATION.

SERVICE NOTES

Issued by RJA

SPECIFICATIONS...2

LOCATION

LOCATION OF

OF CONTROLS

CONTROLS ...3

...3

LOCATION OF

LOCATION OF CONTROLS PART

CONTROLS PARTS LIST

S LIST ...3

...3

EXPLODED

EXPLODED VIEW

VIEW ...4

...4

EXPLODED V

EXPLODED VIEW PARTS

IEW PARTS LIST

LIST ...4

...4

PARTS LIST...5

TEST MODE...6

TEST MODE

TEST MODE ERROR MESSAG

ERROR MESSAGE

E ...10

...10

RESTORING THE FACTORY SETTINGS...11

SYSTEM SOFTWARE UPDATE PROCEDURES...11

INPORTANT CAUTIONS WHEN REPLACING

THE PIEZO PICKUP OR BATTERY WIRING...12

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SPECICATIONS

DR-3: Dr.Rhythm

• • SSttyylleess

User Style: 100 styles User Style: 100 styles Preset Style: 100 styles Preset Style: 100 styles ** 11 11 papattttererns ns fofor a r a ststylylee

• • SSoonnggss

User Song: 100 User Song: 100

Song Length: Maximum 250 patterns for a song Song Length: Maximum 250 patterns for a song

•

• TSC TSC (To(Total tal SouSound nd ConControtrol)l) Sound Shape

Sound Shape

Preset Patch: 8 patches Preset Patch: 8 patches User Patch: 8 patches User Patch: 8 patches Ambience

Ambience

Preset Patch: 8 patches Preset Patch: 8 patches User Patch: 8 patches User Patch: 8 patches

•

• MaMax x PoPolylyphphononyy 12 voices 12 voices

•

• InInststrurumementnt Drum and Perc: 120 Drum and Perc: 120 Bass: 12

Bass: 12

•

• ReResosollututioionn 96 per quarter note 96 per quarter note

•

• TTeemmppoo 20-260 bpm 20-260 bpm

•

• ReRecocordrdining g MeMeththodod Realtime / Step Realtime / Step

• • PPaaddss

13

13 (Velocity-sensiti(Velocity-sensitive)ve)

•

• DDiissppllaayy

Backlit LCD (16 Characters x 2 Lines) Backlit LCD (16 Characters x 2 Lines)

•

• CoConnnneectctororss

Output Jack: L, R (RCA phono type), Output Jack: L, R (RCA phono type),

L (PHONES), R (MONO) (1/4 inch phone type) L (PHONES), R (MONO) (1/4 inch phone type) Foot Switch Jack (Stereo 1/4 inch phone type) Foot Switch Jack (Stereo 1/4 inch phone type) MIDI IN Connector

MIDI IN Connector DC IN (AC Adaptor Jack) DC IN (AC Adaptor Jack)

•

• PoPowewer Sr Supupplplyy

DC 9V: Dry Battery x 6, AC Adapter (PSA series) DC 9V: Dry Battery x 6, AC Adapter (PSA series)

•

• PoPowewer r CoConsnsumumptptioionn 200 mA

200 mA

** ExpecExpected ted battebattery liry life ufe under nder contcontinuouinuous uss use:e: Alkaline: approx. 5 hours

Alkaline: approx. 5 hours

This figures will vary depending on the actual conditions of use. This figures will vary depending on the actual conditions of use.

•

• DiDimmenenssioionsns

213 (W) x 185 (D) x 53 (H) mm 213 (W) x 185 (D) x 53 (H) mm 8-7/16 (W) x 7-5/16 (D) x 2-1/8 (H) inches 8-7/16 (W) x 7-5/16 (D) x 2-1/8 (H) inches • • WWeeiigghhtt

710 g / 1 lb 10 oz (excluding dry batteries) 710 g / 1 lb 10 oz (excluding dry batteries)

•

• AAccccesessosoririeses

Owner’s Manual English (#03236845) Owner’s Manual English (#03236845) Alkaline Dry Battery (LR6 (AA) type) x 6

Alkaline Dry Battery (LR6 (AA) type) x 6 (#********)(#********)

•

• OOppttiioonnss

AC Adaptor: PSA Series AC Adaptor: PSA Series Foot Switch: FS-5U Foot Switch: FS-5U

Foot Switch Cable: PCS-31 (Roland) Foot Switch Cable: PCS-31 (Roland)

(1/4inch Phone Plug (stereo)-1/4inch Phone Plug (mono) x (1/4inch Phone Plug (stereo)-1/4inch Phone Plug (mono) x 2)2)

** In the inteIn the interest of prorest of product impduct improvemrovement, the speent, the specificcificatioations and/ons and/or appear appearance of rance of this unit are subject to change without prior notice.

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LOCATION OF CONTROLS

fig.panel fig.panel

LOCATION OF CONTROLS

PART LIST

[Parts]

N

Noo PPaarrttCCooddee PPaarrttNNaammee QQ’’ttyy

11 FF22447777110011 DDRR--KKNNOOBB 11

22 0022667711221122 RROOTTAARRY Y EENNCCOODDEER R EEVVE E GGBB11FF115 5 2244BB 11 33 0033223377881122 RRUUBBBBEERRSWSWFFOORRDDRR--33 11 44 0011556666444455 DDIIN N CCOONNNNEECCTTEER R YYKKFF5511--5500667 7 ((ttaakke e oofff f tthhe e sshhiieelld d ppllaattee)) 11 55 0022889977333344 66..55M M JJAACCK K HHTTJJ--006644--1100DD 11 66 0000556699227788 66..55M M JJAACCK K LLGGRR44660099--77110000 22 77 0000445511443344 RRCCAA((PPIINN) ) JJAACCK K YYKKCC2211--33112200 22 88 0033223377882233 RROOTTAARRY Y PPOOTTEENNTTIIOOMMEETTEER R RRKK0099KK1122AA00 11 99 0033223377883344 SSLLIIDDE E SSWWIITTCCH H SSKK11220099RRGG99 11 1100 1133444499771111 DDC C JJAACCK K HHEECC00447700--0011--663300 11 1111 0033223377884455 BBOOTTTTOOMMFFOOOOTT 44

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EXPLODED VIEW

fig.bunkai

EXPLODED VIEW PART LIST

4

8

5

6

3

5

7

1

2

9

N

Noo PPaarrt t CCooddee PPaarrt t NNaammee QQ’’ttyy 11 FF22447777110011 DDRR--KKNNOOBB 11 22 0033223377881122 RRUUBBBBEERRSSWW 11 33 GG22002277660022 BBAATTTTEERRY Y CCOOVVEERR 11 44 GG22001177661177 BBAATTTTEERRY Y CCAASSEE 11 55 GG22117777330044 BBAATTTTEERRY Y TTEERRMMIINNAALL((++//--)) 22 66 GG22117777330066 BBAATTTTEERRY Y TTEERRMMIINNAALL((--)) 11 77 GG22117777330055 BBAATTTTEERRY Y TTEERRMMIINNAALL((++)) 11 88 0033223377885566 BBAATTTTEERRY Y WWIIRRIINNGG 11 99 0033223377884455 BBOOTTTTOOMMFFOOOOTT 44

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PART LIST

fig.part1E fig.part1E SAFETY PRECAUTIONS: SAFETY PRECAUTIONS: The

The parts parts marked marked havehave

safety-relate

safety-related d characteristicscharacteristics. . UseUse

only listed parts for

only listed parts for replacement.replacement.

CONSIDERATION ON PARTS ORDRING

When ordering any parts listed in the parts list, please specify the following items

When ordering any parts listed in the parts list, please specify the following items in the order sheet.in the order sheet.

Q QTTYY PPAARRT T NNUUMMBBEERR DDEESSCCRRIIPPTTIIOONN MMOODDEEL L NNUUMMBBEERR E Exx.. 1100 2222557755224411 SShhaarrp p KKeeyy CC--2200//5500 1 155 22224477001177330000 KKnnoob b ((oorraannggee)) DDAACC--1155DD

Failure to completely fill the above items with

Failure to completely fill the above items with correct number and description will result in delayed or evencorrect number and description will result in delayed or even

undelivered replacement.

NOTE: The parts marked #

NOTE: The parts marked # are new. (initial parts)are new. (initial parts)

K

KN

NO

OB

B,

,

B

BU

UT

TT

TO

ON

N

Q

Q’’ttyy

F F22447777110011 DDRR--KKNNOOBB 11

SWITCH

## 0033223377883344 SSKK11220099RRGG99 SSLLIIDDEESSWWIITTCCHH SSWW2299 11 ## 0033223377881122 RRUUBBBBEERRSSWW 11

JACK, EXT TERMINAL

0022889977333344 HHTTJJ--006644--1100DD 66..55MMJJAACCKK JJKK22 11 0000556699227788 LLGGRR44660099--77110000 66..55MMJJAACCKK JJKK44,,JJKK55 22 0000445511443344 YYKKCC2211--33112200 RRCCAA((PPIINN))JJAACCKK JJKK33 22 1133444499771111 HHEECC00447700--0011--663300 DDCCJJAACCKK JJKK66 11 0011556666444455 YYKKFF5511--55006677 DDIIN N CCOONNNNEECCTTEER R ((ttaakke e oofff f tthhee

shield plate) shield plate)

JJKK11 11

FINISHED GOODS

## SSKK000000113355 DDRR--3 3 FIINFNIISSHHEED D GGOOOODDS S 110000VV ffoor r SSEERRVVIICCE E OONNLLYY 11

POTENTIOMETER

## 0033223377882233 RRKK0099KK1122AA00 RROOTTAARRYYPPOOTT.. VVRR11 11

ENCORDER

0022667711221122 EEVVEEGGBB11FF11552244BB RROOTTAARRYYEENNCCOODDEERR EENN11 11

WIRINGÅCCABLE

## 0033223377885566 BBAATTTTEERRYYWWIIRRIINNGG 11

PICK UP, SENSOR

## 0033223399332233 6644PPEE220000443300ZZ--XX552211 PPIIEEZZOOPPIICCKKUUPP 11

PACKING

## 0033223377887788 PPAACCKKIINNGGCCAASSEE 11 ## 0033223377886677 PPAACCKKIINNGGPPAADDLL//RR 11

MISCELLANEOUS

G G22001177661177 BBAATTTTEERRYYCCAASSEE 11 G G22002277660022 BBAATTTTEERRYYCCOOVVEERR 11 G G22117777330066 BBAATTTTEERRYYTTEERRMMIINNAALL((--)) 11 G G22117777330055 BBAATTTTEERRYYTTEERRMMIINNAALL((++)) 11 G G22117777330044 BBAATTTTEERRYYTETERRMMIINNAALL((++//--)) 22 ## 0033223377884455 BBOOTTTTOOMMFFOOOOTT 44

ACCESSORIES (STANDARD)

## 0033223366883344 OOWWNNEERR’’SSMMAANNUUAALL JJAAPPAANNEESSEE 11 ## 0033223366884455 OOWWNNEERR’’SSMMAANNUUAALL EENNGGLLIISSHH 11 **************** AALLKKAALLIINNEEDDRRYYBBAATTTTEERRYY LLRR66((AAAA))TTYYPPEE 66

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TEST MODE

Required equipment

1.

1. AC Adaptor PSA SeriesAC Adaptor PSA Series

2.

2. Foot Switch x2 (such as an FS-5U)Foot Switch x2 (such as an FS-5U)

3.

3. Foot Switch Cable (Roland PCS-31)Foot Switch Cable (Roland PCS-31)

(1/4inch Phone Plug (stereo)-1/4inch Phone Plug (mono) x (1/4inch Phone Plug (stereo)-1/4inch Phone Plug (mono) x 2)2)

4.

4. MIDI keyboard (such as an PC-300)MIDI keyboard (such as an PC-300)

5.

5. MIDI CableMIDI Cable

6.

6. OscilloscopeOscilloscope

7.

7. Noise Meter (WEIHGT JIS-A or IHF-A)Noise Meter (WEIHGT JIS-A or IHF-A)

8.

8. HeadphoneHeadphone

9.

9. AA-size dry-cell Battery x6AA-size dry-cell Battery x6

Prior Preparations for Test Mode

fig.test0-0

1.

1. Connect the AC adapter to DC IN on tConnect the AC adapter to DC IN on t he DR-3.he DR-3.

2.

2. Use a MIDI cable to connection MIDI OUT on a MIDI device capable ofUse a MIDI cable to connection MIDI OUT on a MIDI device capable of NOTE ON output to MIDI IN

NOTE ON output to MIDI IN on the DR-3.on the DR-3.

3.

3. Using connector cords (PCS-31), connect foot switches (FS-5U x 2) Using connector cords (PCS-31), connect foot switches (FS-5U x 2) to theto the FOOT SW jacks on the DR-3.

FOOT SW jacks on the DR-3.

Set the [POLARITY SW] on each FS-5U to JACK. Set the [POLARITY SW] on each FS-5U to JACK.

4.

4. Make the following settings on the connected device.Make the following settings on the connected device. •

• OscilOscilloscoloscope setpe settingstings: VOLT: VOLTS 1 V/DIVS 1 V/DIV, TIME, TIMES 0.2 SS 0.2 S/DIV/DIV •

• Noise Noise meter meter settisetting: Wng: WEIGHT EIGHT JIS-A JIS-A or IHor IHF-AF-A •

• DR-DR-3 V3 VOLUOLUME ME setsettinting: g: MAMAXX

Test items

1.

1. SRAM CheckSRAM Check

2.

2. FLASH CheckFLASH Check

3.

3. GA CheckGA Check

4.

4. MR3 CheckMR3 Check

5.

5. BATTERY CheckBATTERY Check

6.

6. MIDI CheckMIDI Check

7.

7. LED CheckLED Check

8.

8. LCD CheckLCD Check

9.

9. Encorder CheckEncorder Check

10.

10. FOOT SW CheckFOOT SW Check

11.

11. PIEZO CheckPIEZO Check

12.

12. SQUAEW CheckSQUAEW Check

13.

13. SINE CheckSINE Check

14.

14. MUTE CheckMUTE Check

15.

15. Ending the Test ModeEnding the Test Mode

16.

16. Checks for Normal OperationChecks for Normal Operation

17.

17. Residual-noise CheckResidual-noise Check

18.

18. Battery-operation CheckBattery-operation Check

fig.test0-1

Starting the Test Program

Hold down the [VARIATION PTN] and

Hold down the [VARIATION PTN] and [VARIATION MUTE] buttons and[VARIATION MUTE] buttons and switch on the power on the DR-3.

switch on the power on the DR-3.

Continue to hold down the buttons until the following display appears on the Continue to hold down the buttons until the following display appears on the LCD screen.

LCD screen.

fig.test0-2

A = Version number of the mask CPU (IC7) A = Version number of the mask CPU (IC7)

B = Version number of the firmware written to the flash memory (IC8) B = Version number of the firmware written to the flash memory (IC8)

Check the following: Check the following: •

• The LCThe LCD backlD backlight muight must lighst light up (uppet up (upper row; four row; four locar locationstions).). •

• LED LED brighbrightness tness must must be wbe without ithout flucfluctuatiotuation.n.

Turning the encoder to select the test item. Turning the encoder to select the test item.

1.RAM Check

1.

1. Press the [ENTER] button.Press the [ENTER] button. If there is no

If there is no problem, the display will indicate “OK.”problem, the display will indicate “OK.”

fig.test1-2 fig.test1-2 AC Adaptor AC Adaptor PCS-31 PCS-31 White

White RedRed

fig.test6-1

1.

1. Press the [ENTER] button.Press the [ENTER] button.

fig.test6-2

2.

2. Send NOTE ON information from Send NOTE ON information from the connected MIDI keyboard.the connected MIDI keyboard. (Any settings may be used for the MIDI channel and note number.) (Any settings may be used for the MIDI channel and note number.)

3.

3. Press the [EXIT] button to end the MIDI Check.Press the [EXIT] button to end the MIDI Check.

7.LED Check

fig.test7-1

1.

2.

2. Check the following:Check the following: •

• The LEThe LEDs for aDs for all buttll buttons musons must light light up (22 t up (22 localocationstions).). •

• The briThe brightneghtness of the bss of the button LEutton LEDs must be wDs must be withouithout fluctut fluctuationation..

Names of Buttons with Lighting LEDs Names of Buttons with Lighting LEDs

[MANU], [AUTO], [SONG], [START], [STEP REC], [SOUND SHAPE], [MANU], [AUTO], [SONG], [START], [STEP REC], [SOUND SHAPE], [AMBIENCE], [PTN], [INST], [VARIATION PTN], [VARIATION KIT], [AMBIENCE], [PTN], [INST], [VARIATION PTN], [VARIATION KIT], [VARIATION MUTE], [KEY SHIFT], [TEMP], [INTRO START], [FILL A], [VARIATION MUTE], [KEY SHIFT], [TEMP], [INTRO START], [FILL A], [VERSE A], [FILL B], [VERSE B],

[VERSE A], [FILL B], [VERSE B], [FILL C], [VERSE C], and ENDING [FILL C], [VERSE C], and ENDING STOP]STOP]

3.

3. Press the button displayed on the LCD.Press the button displayed on the LCD.

The button to press next is then displayed. Continue with pressing the The button to press next is then displayed. Continue with pressing the buttons in the sequence shown.

buttons in the sequence shown.

Also make sure that when a button having a lighted LED is pressed, the Also make sure that when a button having a lighted LED is pressed, the LED simultaneously goes dark.

LED simultaneously goes dark.

4.

4. If after being pressed the button catches on the case and does not returnIf after being pressed the button catches on the case and does not return or rubs against the

or rubs against the case and returns slowly, the test is case and returns slowly, the test is considered to haveconsidered to have been failed.

been failed.

If the test fails “NG”, check for

If the test fails “NG”, check for a problem in the installation of the a problem in the installation of the rubberrubber switch or for burring on the case.

switch or for burring on the case.

5.

5. Press the last [ENDING STOP] button to end the LED Check.Press the last [ENDING STOP] button to end the LED Check.

8.LCD Check

fig.test8-1

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1.

Make sure that all dots on the LCD screen are black and that there are not Make sure that all dots on the LCD screen are black and that there are not missing dots.

missing dots.

2.

Make sure all dots on the LCD screen turn white. Make sure all dots on the LCD screen turn white.

3.

3. Press the [ENTER] button to end the LCD Check.Press the [ENTER] button to end the LCD Check.

9.Encorder Check

fig.test9-1

1.

2.

2. Slowly turn the encoder clockwise.Slowly turn the encoder clockwise.

fig.test9-2

3.

3. Make sure that STEP is set to “1,” and that SUM is incremented one unitMake sure that STEP is set to “1,” and that SUM is incremented one unit at a time.

at a time.

4.

4. Slowly turn the Slowly turn the encoder counterclockwise.encoder counterclockwise.

fig.test9-3

5.

5. Make sure that STEP is set to “-1,” and that SUM is decremented one unitMake sure that STEP is set to “-1,” and that SUM is decremented one unit at a time.

at a time.

6.

6. Press the [EXIT] button to end the ENCORDER Check.Press the [EXIT] button to end the ENCORDER Check.

10.FOOT SW Check

Before entering the Test mode, connect

Before entering the Test mode, connect the foot switches.the foot switches.

fig.test10-1

1.

fig.test10-2

2.

2. Press and release the FS-5U (to which Press and release the FS-5U (to which the white line of the the white line of the PCS-31 isPCS-31 is connected).

connected).

fig.test10-3

3.

3. Press and release the FS-5U (to which tPress and release the FS-5U (to which t he red line of the he red line of the PCS-31 isPCS-31 is connected).

connected).

4.

4. Press the [EXIT] button to end the FOOT SW Check.Press the [EXIT] button to end the FOOT SW Check.

11.PIEZO Check

fig.test11-1

1.

fig.test11-2

The “*” displayed indicates a change in the display in response to

The “*” displayed indicates a change in the display in response to vibrationvibration applied to the DR-3.

applied to the DR-3.

2.

2. With the finger, strike the [VARIATION MUTE] button on the product.With the finger, strike the [VARIATION MUTE] button on the product.

fig.test11-3

3.

3. The LCD screen must display “100 OK.”The LCD screen must display “100 OK.”

fig.test11-4

The level meter is displayed on the LCD

The level meter is displayed on the LCD screen every time the unit is screen every time the unit is tapped.tapped. After that the LCD

After that the LCD screen displays the “MAX” value, which stays on screen.screen displays the “MAX” value, which stays on screen.

4.

4. Press the [EXIT] button to end the PIEZO Check.Press the [EXIT] button to end the PIEZO Check.

12.SQUAEW Check

fig.test12-1

1.

2.

2. On the DR-3, set [VOLUME] to “MAX.”On the DR-3, set [VOLUME] to “MAX.”

T

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fig.volume

3.

3. Use an oscilloscope to observe the Use an oscilloscope to observe the waveforms from OUTPUT L/R (PINwaveforms from OUTPUT L/R (PIN jack) on the DR-3.

jack) on the DR-3.

fig.lineout-1

•

• WavefWaveforms liorms like thoske those shown ae shown above musbove must be output be output from LINt from LINE OUT L/E OUT L/ R.

R. •

• They musThey must be rectangt be rectangular waular waves phaves phase-shse-shifted by 90 difted by 90 degreegrees.es. •

• The wThe wavefaveform heorm height ight must bmust be from e from 1.8 V 1.8 V to 2.4 to 2.4 V.V.

4.

4. Observe the waveform from the tip of R (MONO) on the DR-3.Observe the waveform from the tip of R (MONO) on the DR-3.

Nothing must be plugged into L (PHONE) at this time. Nothing must be plugged into L (PHONE) at this time.

fig.lineout-2

•

• A steppA stepped waved waveform leform like the oike the one showne shown above mn above must be outpust be output from Rut from R (MONO).

(MONO).

5.

5. Observe the waveforms from the tip of L (PHONE) and from the tip Observe the waveforms from the tip of L (PHONE) and from the tip of Rof R (MONO) on the DR-3.

(MONO) on the DR-3.

fig.lineout-3

•

• They musThey must be rectangut be rectangular wavelar waves phase-s phase-shiftshifted by 90 degreed by 90 degrees, like thoes, like thosese

shown above. shown above. •

• The wThe wavefoaveform herm height might must be ust be from from 1.8 V t1.8 V to 2.4 o 2.4 V.V.

6.

6. Disconnect the plug from R Disconnect the plug from R (MONO).(MONO).

Insert a stereo plug into L (PHONE) and waveforms of the tip and the Insert a stereo plug into L (PHONE) and waveforms of the tip and the ring.

ring.

fig.lineout-4

7.

7. Turn [VOLUME] on the DR-3 to “MAX,” then to “MIN,” then back toTurn [VOLUME] on the DR-3 to “MAX,” then to “MIN,” then back to “MAX,” and make sure the waveforms change smoothly.

“MAX,” and make sure the waveforms change smoothly. Also, make sure that the

Also, make sure that the waveforms disappear completely whenwaveforms disappear completely when [VOLUME] is set to “MIN.”

[VOLUME] is set to “MIN.”

fig.volume

8.

8. Press the [EXIT] button to end the SQUARE Check.Press the [EXIT] button to end the SQUARE Check.

13.SINE Check

This item is used only during the shipping test at the factory. This item is used only during the shipping test at the factory. You need not use

You need not use it when servicing in the field.it when servicing in the field.

14.MUTE Check

This item is used only during the shipping test at the factory. This item is used only during the shipping test at the factory. You need not use

You need not use it when servicing in the field.it when servicing in the field.

15.Ending the Test Mode

Switch off the DR-3. Switch off the DR-3.

16.Checks for Normal

16.Checks for Normal Operation

Operation

1.

1. Switch on the DR-3 unit.Switch on the DR-3 unit.

2.

2. Connect headphones to L (PHONES) on the DR-3.Connect headphones to L (PHONES) on the DR-3.

fig.phone fig.phone Lch Lch 1V/DIV 1V/DIV 0.2s/DIV 0.2s/DIV LINE OUT LINE OUT Rch Rch

VOLTS 1V/DIV, TIMES 0.2S/DIV

Lch Lch 1V/DIV 1V/DIV 0.2s/DIV 0.2s/DIV L(PHONE) / R(MONO) L(PHONE) / R(MONO) Rch Rch

RING RING 1V/DIV 1V/DIV 0.2s/DIV 0.2s/DIV

L(PHONE) TIP / RING

TIP

Headphone

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3.

3. Press the [INTRO START] button and check the sound of patternPress the [INTRO START] button and check the sound of pattern playback.

playback.

4.

4. Turn the volume knob and make sure that the volume level changesTurn the volume knob and make sure that the volume level changes smoothly.

smoothly.

5.

5. Press the [STOP] button to stop playback.Press the [STOP] button to stop playback.

6.

6. Press the [INST] button.Press the [INST] button.

fig.test16-1

7.

7. Tap the [INTRO START] (KICK) and [ENDING Tap the [INTRO START] (KICK) and [ENDING STOP] (CYM 3) buttonsSTOP] (CYM 3) buttons forcefully and gently, and check the resulting sound.

forcefully and gently, and check the resulting sound. At this time, also

At this time, also make sure that the make sure that the volume level changes in accordancevolume level changes in accordance with the force with which the buttons are tapped.

with the force with which the buttons are tapped.

8.

8. Switch off the DR-3.Switch off the DR-3.

17.Residual-noise Check

1.

1. Switch on the DR-3 unit and start the normal mode.Switch on the DR-3 unit and start the normal mode.

2.

2. Set [VOLUME] on the DR-3 Set [VOLUME] on the DR-3 to “MAX” and measure residual noise at Lto “MAX” and measure residual noise at L (PHONE) and R (MONO) using a

(PHONE) and R (MONO) using a noise meter.noise meter.

A dummy plug must be inserted into L (PHONE) when performing A dummy plug must be inserted into L (PHONE) when performing measurement at R (MONO).

measurement at R (MONO).

The levels at both L (PHONE) and R (MONO) must be -88 dBm or The levels at both L (PHONE) and R (MONO) must be -88 dBm or lessless (WEIGHT JIS-A or IHF-A).

(WEIGHT JIS-A or IHF-A).

18.Battery-ope

18.Battery-operation

ration Check

Check

1.

1. Detach the cord from DC IN on the DR-3.Detach the cord from DC IN on the DR-3.

2.

2. Install six AA-size dry-cell batteries in the DR-3.Install six AA-size dry-cell batteries in the DR-3.

fig.battery

3.

3. Switch on the DR-3 unit.Switch on the DR-3 unit.

4.

4. Make sure the product starts Make sure the product starts and the LEDs are as and the LEDs are as follows.follows. •

• [MANU[MANU], [PTN]], [PTN], [SOUND SHA, [SOUND SHAPE], and [PE], and [AMBIAMBIENCE] LENCE] LEDs ligEDs lighted.hted. •

• [IN[INTRO TRO STASTART] RT] LELED flaD flashishing.ng.

5.

5. Switch off the DR-3.Switch off the DR-3.

TEST MODE ERROR MESSAGE

fig.error-1

•

• aaaaaaaaaaaa ---aaaa ---> This indi> This indicates the adcates the addresdress where the errs where the error occurror occurred. This ised. This is a defect in the SRAM (IC9)

a defect in the SRAM (IC9) or a solder defect between the or a solder defect between the CPU (IC7) andCPU (IC7) and the SRAM (IC9).

the SRAM (IC9).

fig.error-2

•

• This inThis indicadicates a failtes a failure to read thure to read the flash mee flash memory. Thimory. This is a defecs is a defect in thet in the flash memory (IC8) or a

flash memory (IC8) or a solder defect between the CPU (IC7) and thesolder defect between the CPU (IC7) and the flash memory.

flash memory.

fig.error-3

•

• This indThis indicateicates a failure in reas a failure in reading or writding or writing to the gate-ing to the gate-array rearray registegister.r. This is a defect in the gate array (IC6) or

This is a defect in the gate array (IC6) or a solder defect between the CPUa solder defect between the CPU (IC7) and the gate array.

(IC7) and the gate array.

fig.error-4

•

• This inThis indicadicates that the ctes that the chip ID coulhip ID could not be readd not be read. This is a def. This is a defect in MR3ect in MR3 (IC10) or a solder defect between the

(IC10) or a solder defect between the CPU (IC7) and MR3.CPU (IC7) and MR3.

fig.error-5

•

• This indicThis indicates a fates a failure to aailure to access the ccess the IRAM. This IRAM. This is a dis a defect in efect in MR3 (IC10)MR3 (IC10) or a solder defect between the

or a solder defect between the CPU (IC7) and MR3.CPU (IC7) and MR3.

fig.error-6

•

• This indThis indicateicates a problem in the bats a problem in the battery dettery detectioection circuin circuit. This is a defet. This is a defect inct in R131, R132 or a solder defect of

(11)

RESTORING THE FACTORY

SETTINGS

This restores the settings of the DR-3 to their

factory defaults.

1.

1. Power on the DR-3.Power on the DR-3.

fig.fact-1

2.

2. Press the [EDIT] button.Press the [EDIT] button.

fig.fact-2

3.

3. PrPresess ts the he [[ ] b] bututton ton anand cd chohoosose “e “SYSYSTSTEMEM.”.”

fig.fact-3

4.

fig.fact-4

5.

5. PrPresess ths the [e [ ] bu] buttotton ann and chd choooose “se “FAFACTCTORORY REY RESESET.T.””

fig.fact-5

6.

6. Press the [ENTER] button.Press the [ENTER] button. A message prompting you to

A message prompting you to confirm execution of the factory-resetconfirm execution of the factory-reset operation is displayed.

operation is displayed.

fig.fact-6

7.

7. To execute a factory reset, press the [ENTER] button.To execute a factory reset, press the [ENTER] button. The factory reset is executed.

The factory reset is executed.

When the factory reset ends,

When the factory reset ends, the original screen reappears.the original screen reappears. All settings are returned to the default values in

All settings are returned to the default values in effect when the unit waseffect when the unit was shipped from the factory.

shipped from the factory.

SYSTEM SOFTWARE UPDATE

PROCEDURE

Required equipment

1.

1. Update CD-ROM (P/No.17041302)Update CD-ROM (P/No.17041302)

2.

2. AC Adaptor PSA SeriesAC Adaptor PSA Series

3.

3. Sequencer (Capable of playing back SMF)Sequencer (Capable of playing back SMF)

4.

4. MIDI cableMIDI cable

Update Method

User-created data cannot be backed up. User-created data cannot be backed up.

When initializing the User memory, send all MIDI files from

When initializing the User memory, send all MIDI files from _00001.mid to_00001.mid to _00071.mid.

_00071.mid.

When updating the system without initializing the User memory,

When updating the system without initializing the User memory, send thesend the following MIDI files.

following MIDI files.

_00001.mid ... _00048.mid _00001.mid ... _00048.mid _00063.mid ... _00071.mid _00063.mid ... _00071.mid

1.

1. Connect the AC adapter to DC IN on the Connect the AC adapter to DC IN on the DR-3 unit.DR-3 unit.

2.

2. Use a MIDI cable to connect MIDI OUT on a sequencer capable ofUse a MIDI cable to connect MIDI OUT on a sequencer capable of importing Standard MIDI files to MIDI IN on the DR-3.

importing Standard MIDI files to MIDI IN on the DR-3.

3.

3. Hold down the [START] and [STEP REC] buttons on the Hold down the [START] and [STEP REC] buttons on the DR-3 and switchDR-3 and switch on the unit.

on the unit.

fig.update-1

4.

4. When the update operation starts, a display like the one shown belowWhen the update operation starts, a display like the one shown below appears.

appears.

fig.update-2

5.

5. When the update operation ends, When the update operation ends, a display like the one shown belowa display like the one shown below appears.

appears.

The update operation takes about

The update operation takes about 40 minutes.40 minutes.

1

1 2, 4

2, 4

3, 5, 6

(12)

fig.update-3

6.

6. Switch off the DR-3 unit.Switch off the DR-3 unit.

IMPORTANT CAUTIONS

WHEN REPLACING THE

PIEZO PICKUP OR BATTERY

WIRING

How to Affix the Piezo Pickup

1.

1. Swab the location on the circuit board for affixing the piezo element (theSwab the location on the circuit board for affixing the piezo element (the silkscreened region) with alcohol.

silkscreened region) with alcohol.

Make sure the area is free of flux, grime, or other soiling. Make sure the area is free of flux, grime, or other soiling.

2.

2. Make sure the applied alcohol has dried completely.Make sure the applied alcohol has dried completely.

3.

3. Peel off the backing of the double-faced adhesive tape on the back of thePeel off the backing of the double-faced adhesive tape on the back of the piezo element, and affix the piezo element to the circuit board so that the piezo element, and affix the piezo element to the circuit board so that the wiring position is aligned with the silkscreened guide on the circuit wiring position is aligned with the silkscreened guide on the circuit board.

board.

Give attention to the

Give attention to the following:following: •

• Do not allow anDo not allow any grime or soiy grime or soiling to adhling to adhere to the doublere to the double-fae-faced adhced adhesiveesive tape.

tape. •

• Press dPress down on thown on the outer pee outer peripheriphery of the pry of the piezo eiezo elemelement to affint to affix itx it securely.

securely. •

• After afAfter affixifixing the piezng the piezo elemeo element, make sunt, make sure that it is not lore that it is not loose at anyose at any point.

point. •

• When preWhen pressinssing down on tg down on the piezhe piezo elemeo element, do not tont, do not touch the much the metaletal portion of the piezo element with the bare hand. (Be sure to wear gloves portion of the piezo element with the bare hand. (Be sure to wear gloves or the like.)

or the like.) •

• Do not preDo not press dowss down on the soln on the solder areder area of the wia of the wiring or sring or subject thubject the area te area too stress.

stress. •

• Do not toucDo not touch the chih the chip diodp diodes (DAes (DA7, DA117, DA11, and DA1, and DA12) or subj2) or subject theect them tom to stress.

stress.

4.

4. Apply filament tape (P/No.40122645) to the piezo element from above toApply filament tape (P/No.40122645) to the piezo element from above to secure the element to the circuit board.

secure the element to the circuit board.

Use tweezers to avoid transferring oils from the Use tweezers to avoid transferring oils from the hands.hands.

Once the filament tape has been applied, do not attempt to peel it off and Once the filament tape has been applied, do not attempt to peel it off and reapply it.

reapply it.

5.

5. Press down on the entire surface of the filament tape and on the outerPress down on the entire surface of the filament tape and on the outer periphery of the piezo element to

periphery of the piezo element to anchor them in place securely.anchor them in place securely.

fig.piezo-1

How to Affix the Battery Wiring

Use filament tape to affix the wiring from the battery to the bottom cover. Use filament tape to affix the wiring from the battery to the bottom cover.

fig.piezo-2

Boss DR-3 Service Notes

Copyright © 2003 ROLAND CORPORATION

Copyright © 2003 ROLAND CORPORATION

All rights reserved. No part of t

All rights reserved. No part of this publication may be reproduced in any form without the written permission

his publication may be reproduced in any form without the written permission

of ROLAND CORPORATION.

of ROLAND CORPORATION.

SERVICE NOTES

SERVICE NOTES

Issued by RJA

Issued by RJA

TABLE OF CONTENTS

TABLE OF CONTENTS

SPECIFICATIONS...2

SPECIFICATIONS...2

LOCATION

LOCATION OF

OF CONTROLS

CONTROLS ...3

...3

LOCATION OF

LOCATION OF CONTROLS PART

CONTROLS PARTS LIST

S LIST ...3

...3

EXPLODED

EXPLODED VIEW

VIEW ...4

...4

EXPLODED V

EXPLODED VIEW PARTS

IEW PARTS LIST

LIST ...4

...4

PARTS LIST...5

PARTS LIST...5

TEST MODE...6

TEST MODE...6

TEST MODE

TEST MODE ERROR MESSAG

ERROR MESSAGE

E ...10

...10

RESTORING THE FACTORY SETTINGS...11

RESTORING THE FACTORY SETTINGS...11

SYSTEM SOFTWARE UPDATE PROCEDURES...11

SYSTEM SOFTWARE UPDATE PROCEDURES...11

INPORTANT CAUTIONS WHEN REPLACING

INPORTANT CAUTIONS WHEN REPLACING

THE PIEZO PICKUP OR BATTERY WIRING...12

SPECICATIONS

SPECICATIONS

DR-3: Dr.Rhythm

DR-3: Dr.Rhythm

LOCATION OF CONTROLS

LOCATION OF CONTROLS

LOCATION OF CONTROLS

LOCATION OF CONTROLS

PART LIST

PART LIST

[Parts]

[Parts]

EXPLODED VIEW

EXPLODED VIEW

EXPLODED VIEW PART LIST

EXPLODED VIEW PART LIST

4

4

8

8

5

5

6

6

3

3

5

5

7