Output jacks (Stereo, RCA-Pin)
Microphone jack (with echo)
Headphone jack (Stereo Mini)
MIDI IN/MIDI OUT connectors
Computer connector
Expression Pedal jack
Start/Stop jack
A40011056SCREW M3×6BINDING B-TIGHT ZC
B40011101SCREW M3×8BINDING TAPTITE-B FE BZC
C40011278SCREW M3×8BINDING P-TITE FE ZC
D40011312SCREW M3×8BINDING P-TITE FE BZC
E40011501SCREW M3×8SEMS. PAN HEAD FE BZC
F40012878SCREW M3×10PAN SEMS FECM W/SW+PW
/分解図
#2
A
@6
@2
A
@1
A
@7
!8
@5
!7
A
#3
@7
D
@7
B
A
@6
@4
@8
D
@9
!9
F
!4
t
C
@3
#1
E
#5
y
q
C
#4
u
i
w
!5
o
!2
C
!1
r
e
C
!0
#0
!3
!6
C
C
S
T
U
V
IMPORTANT : After replacing wiring, #2 INSULATING SHEET or shifting them for replacing
QTYPART NUMBERDESCRIPTION MODEL NUMBER
1022575241Sharp keyC-20/50
Ex.
152247017300Knob (orange)DAC-15D
必要数パーツナンバー品名使用機種
1022575241Sharp keyC-20/50
例)
152247017300Knob (orange)DAC-15D
MAIN BOARD ASSY= MB
ANALOG BOARD ASSY = ANALOG
ENCODER BOARD ASSY = ENCODER
LED BOARD ASSY= LED
PANEL L BOARD ASSY = PANEL L
PANEL R BOARD ASSY = PANEL R
PHONE BOARD ASSY= PHONE
Note : Consider about the natural environment carefully before through the old lithium battery away when you exchange to
01453245SDDLB1-B2-D-2 TV-5PUSH SWITCHSW2 on ANALOG1
00899223SSSF124-S06N1SLIDE SWITCHSW1 on ANALOG1
JACK, SOCKET
008940013.5MM YKB21-5142JACKJK201 on PHONE1
134492836.5MM HLJ7101-01-3010JACKJK7 on ANALOG1
134492846.5MM HLJ7001-01-3010JACKJK5 on ANALOG1
134492526.5MM YKB21-5006JACK(STEREO W/SW)JK2 on ANALOG1
23425740INL-8 10A/125V 2P POAC INLETJK8 on ANALOG1
13429911TCS7927-28-401JACK (RS422)JK3 on ANALOG1
00451445YKC21-3040JACKJK1 on ANALOG1
13429676YKF51-5048MIDI CONNECTORJK6 on ANALOG1
/シャーシ
/つまみ、ボタン
/スイッチ
/ジャック、ソケット
DISPLAY UNIT
/表示ユニット
71013990LCD UNIT1
NOTE : Replacement LCD UNIT should be made on a unit base.
注意: LCDUNITの交換は、ユニット単位で行って下さい。補修品は、ユニット単位。
DISK DRIVE UNIT
01788045MF355F-3252MG(REV.F)FDD UNIT1
/ディスクドライブ・ユニット
NOTE : Replacement FDD MF355F-3252MG(REV.F) should be made on a unit base.
NOTE : ‘PHONE BOARD ASSY’ includes the following parts.
注意: 補修用PHONEBOARDASSYは、下記の部品を含みます。
#01894845WIRING W19CN201 on PHONE
#01675734WIRING W8CN202 on PHONE
#71231767ANALOG BOARD ASSY
NOTE : ‘ANALOG BOARD ASSY’ includes the following parts.
注意: 補修用ANALOGBOARDASSYは、下記の部品を含みます。
#01675801WIRING W14
#01675823WIRING W15
#71231756PANEL R BOARD ASSY
#71231745PANEL L BOARD ASSY
NOTE : ‘PANEL L BOARD ASSY’ includes the following parts.
注意: 補修用PANELLBOARDASSYは、下記の部品を含みます。
#01675767WIRING W2CN5 on PANEL L
#01675778WIRING W3CN2 on PANEL L
#01675789WIRING W4CN4 on PANEL L
#01675790WIRING W5CN3 on PANEL L
#71231734ENCODER BOARD ASSY
NOTE : ‘ENCODER BOARD ASSY’ includes the following parts.
注意: 補修用ENCODERBOARDASSYは、下記の部品を含みます。
#01675756WIRING W9CN401 on ENCODER
#71231723LED BOARD ASSY
NOTE : ‘LED BOARD ASSY’ includes the following parts.
注意: 補修用LEDBOARDASSYは、下記の部品を含みます。
#01675745WIRING W1CN301 on LED
12169323TR SPACER TR-1
IC
0112677824LC01BT-I/SNIC EEPROMIC32 on MB1
15199286AN78L05M-(E1)IC REGULATORIC10 on ANALOG1
15199188AN78M09FIC (V.RGL)IC17 on ANALOG1
15199189AN79M09FIC (V.RGL)IC20 on ANALOG1
15199780HD63266FIC (FDC)IC2 on MB1
01344278HD6437034AD72FIC CPUIC3 on MB1
15269201H0HD74LS04FPELIC (TTL)IC15 on ANALOG1
01341167LH28F400SUT-NF60IC FLASH MEMORYIC38 on MB1
5
Page 6
MT-300Jan. 1999
01348245LH5S46NH DEMOIC MASK ROMIC15 on MB1
15199937M51953BFPIC (RESET IC)IC11 on ANALOG1
15289109M5216FP-600DIC (OP AMP)IC4 on ANALOG1
15189261M5218AFP-600EIC (OP AMP) TAPEIC1 3 16 on ANALOG3
15289712M5M34051FP-42AICIC12 on ANALOG1
00343823M60205-0601FPIC (GATE ARRAY)IC8 on MB1
01238012M65850PIC DIGITAL ECHOIC9 on ANALOG1
15289125PC410KT 178FAYPHOTO COUPLARIC14 on ANALOG1
00232567PCM69AU-1/2KIC DACIC5 on MB1
00897078RA01-005 (TC170C200AF-005)IC (CUSTOM)IC13 on MB1
15289402TA78L05F(TE12L)IC REGULATORIC6 on MB1
01126612TC514260DJS-60(YEL)IC (DRAM)IC22 23 on MB2
01344256TC5316200CF-HA01(TZ)IC MASK ROMIC18 on MB1
15259740T0TC74HC139AF(EL)IC (HS-CMOS)IC1 on PANEL L1
15259823T0TC74HC574AF(EL)IC (CMOS)IC2 on PANEL L1
15259884TC7S08F(TE85L)ICIC33 on MB, IC21 on ANALOG1 + 1
15259885TC7S32F(TE85L)IC (C MOS)IC11 26 on MB2
15259887TC7SU04F(TE85L)IC (CMOS)IC13 on ANALOG1
00127490TC7W08F(TE12L)IC (C MOS)IC19 on MB1
00232645TC7W14F(TE12L)ICIC35 on MB1
15249111TC7WU04F(TE12L)IC (C MOS)IC10 on MB1
01349590TC7WU04FU(TE12L)IC CMOSIC7 on MB1
15289105UPC4570G2-E2IC (OP AMP)IC4 12 on MB, IC7 8 on ANALOG2 + 2
TRANSISTOR
153091012SA1037KR T146 QRSTRANSISTORQ16 19 on ANALOG2
153191012SC2412KR T146TRANSISTORQ17 18 on ANALOG2
153191052SC3326-A(TE85L)TRANSISTORQ2-4 6 on ANALOG4
15329507DTA114EKT146DIGITAL TRANSISTORQ9 on ANALOG1
15129198DTA124ES TPDIGITAL TRANSISTORQ14 on ANALOG1
15329516DTC114EKT146TRANSISTORQ4-11 on PANEL L8
15129197DTC144WSTPDIGITAL TRANSISTORQ15 on ANALOG1
00898201RN2421-TE85LTRANSISTORQ1 on MB, Q1-3 on PANEL L1 + 3
DIODE
/ダイオード
15339120T01SS302-TE85RARRAY DIODEDA2 on ANALOG1
01121323DA204UT106ARRAY DIODEDA2 4 on MB, DA1 3 4 on ANALOG2 + 3
15339105DAN202K T146ARRAY DIODE (CHIP)D101-105 on PANEL R, D1-9 on PANEL L 5 + 9
#01781923RD30M-T1B BZENER DIODED3-8 on ANALOG6
15039142S5688G(TPB5)RECTIFIER DIODED9 on ANALOG1
00348490SLR-325VCT31LED (RED)
00560745SLR325MCT31LED (PTR GREEN)LED2 on PANEL L1
01121689SPR-325MVWT31LED (RED/GREEN)LED3-7 on PANEL L, LED301 on LED5 + 1
RESISTOR
00126112EXBV8V101JVRESISTOR ARRAY (CTA)RA31 38-40 on MB4
15409113EXBV8V103JVRESISTOR ARRAYRA13-18 20-23 34 35 41 on MB13
01013578EXBV8V470JVRESISTOR ARRAYRA2 3 5 19 24-27 29 30 32 on MB11
15399965RCE9A103JAG7A (10KOHM ×8)RESISTOR ARRAYRA1 4 6 7 12 28 on MB6
POTENTIOMETER
13279884RK09K1110 10KBPOTENTIOMETERVR1 2 on ANALOG2
01011645RS30H12AD 50KB×2 30MMPOTENTIOMETER (SLIDE)VR201 on PHONE1
CAPACITOR
01453278DE1307E 472M-KHCERAMIC CAPACITORC134 on ANALOG1
INDUCTOR, COIL, FILTER
01455623N2012Z102T01
01566956N2012ZA202T01FERRITE- BEADL1-14 on ANALOG14
01459178PLH11B8002R2P01B1COILFL1 on ANALOG1
/トランジスター
/抵抗
/ボリューム
/コンデンサー
/インダクター、コイル、フィルター
INDUCTOR CEA FERRITE BEADS
LED101-103 on PANEL R, LED1 8-10 on PANEL L
L1-19 on MB19
3 + 4
ENCODER
01013223EVQ VEM F01 24B
CONNECTOR
1336992553253-0310CONNECTOR (3P)
1336992653253-0410CONNECTORCN11 on ANALOG1
1336992953253-0710CONNECTOR (7P)CN1 2 on ANALOG2
1336993153253-0910CONNECTORCN7 on MB1
1336993353253-1110CONNECTORCN3 on ANALOG1
1336993453253-1210CONNECTORCN6 on MB1
0145155653313-1415CONNECTOR (14P)CN5 on MB1
13369516B9B-PH-KS JSTCONNECTORCN7 on ANALOG1
13369877PS-34PE-D4T1-B1-KCONNECTORCN1 on MB1
WIRING, CABLE
#01675678WIRING W6LCD-MAINCN5 on MB - CN1 on LCD A1
#01675689WIRING W13FDDPWR 26AWGCN4 on ANALOG - FDD1
#01896656WIRING W20FDD 34PCN1 on MB - FDD1
SCREWS
40011056SCREW M3×6BINDING B-TIGHT ZC18
40011312SCREW M3×8BINDING P-TITE FE BZC8
40011278SCREW M3×8BINDING P-TITE FE ZC19
40012878SCREW M3×10PAN SEMS FECM W/SW+PW4
40011501SCREW M3×8SEMS. PAN HEAD FE BZC1
40011101SCREW M3×8BINDING TAPTITE-B FE BZC3
13499219AC CORD SET (100V)DC-382-J011
13499220AC CORD SET (117V)SJT2P 18AWG 60PO UC7131
13499221AC CORD SET (230V)EC-511-E071
13499222AC CORD SET (240VA)SC-472-J03 (SC-078-J02)1
00905234ECP01-5AEURO CONVERTER PLUG1
01456390FLOPPY DISK DEMOJAPANESE1
01456401FLOPPY DISK DEMOENGLISH1
17049560CONVERTER PLUG ANGLE(L TYPE)2
23485228MIDI CABLE348-228 1M (BLACK)1
00787534ORIGINAL CONNECT CORDRCA PIN-PIN R/W 1.0M1
71233345OWNER’S MANUALENGLISH1
71231667OWNER’S MANUALJAPANSES1
#40340056LEAFLETDEMO SONG LIST1
/エンコーダー
/コネクター
/ワイヤリング,ケーブル
/ねじ類
/梱包材
/その他
/標準付属品
POTENTIOMETER (ROTARY ENCODER)
EN401 on ENCODER1
CN2 on MB, CN4 on ANALOG, CN1 on PANEL L
1+1+1
CRYSTAL, RESONATOR
00894034MA-406 16.000MHZ TE24CRYSTALX1 on MB1
00894023MA-406 20000MHZ TE24CRYSTALX3 on MB1
00901912MA-406 24.576MHZ TE24CRYSTALX2 on MB1
/クリスタル、発振子
6
Page 7
MT-300Jan. 1999
HOW TO UPDATE THE FLASH MEMORY
フラッシュメモリーのバージョン
アップの方法
MT-300 uses Flash Memory for the main program registration.
With the productions, you can make the software update by floppy
disks via internal FDD. Please refer to the following "Update
Procedure."
◊ Required Item
MT-300/S Ver. Up Disk (P/No.17048697)
⋅
◊ Update Procedure
1. Insert the MT-300/S Ver. Up Disk into the disk drive.
Turn the power ON while holding [Tempo] and
[Metronome] buttons.
2: All of the LEDs on the panel blink as follows.
Normal: Blinks slowly
Error : Repeat quick double brink
3: When it is in normal condition, LCD may show "Flash
ROM Update" for a moment and loading the program
will be started. During the update, LCD will display as
follows."
The ******* and "##" part shows the working condition.
Refer to the following.
*****: ... Reading (now loading the program)
: ... Writing (now writing the program)
##: ... counts from 01 to 08
4: When the update procedure is normal ended, "finished"
will be displayed to the LCD. Turn ON the power again
and confirm the System Version number and execute
Test Mode.
If "finished" has not been displayed to the LCD display,
turn OFF and ON the power again and retry the update
procedure from the first. If the result is the same, contact
Roland Service Center.
After turning on the power, press the [Metronome] button while
holding down the [Song] and [Count In] button to enter the
Test Mode. The following display will appear, and you will
enter test mode.
V*** :version number
B*** :build number (This is for factory use only)
***:destination region (DOM: 100V specs, EXP: 117/
230/240V specs)
C*** :CPU build number (This is for factory use only)
* (Build number) and (CPU build number) are generally
not displayed in the LCD, but some units of the initial
production may display these. As this numbers are
displayed for factory purpose, please ignore when you
execute Test mode during the repair.
Press the [Transpose] button to move to item 2
* To advance to the next item you will generally use the
[Transpose] button.
For some items, you will advance automatically, so refer to the
explanation of each item.
* If you wish to exit test mode during this procedure, turn
off the power.
2. Device check and display of ROM version, etc.
During the device check, the following display will appear.
If a problem is found, the following error display will appear.
DEVICE (Error content)
Err PROGRAM ROM
Program (Flush or mask ROM) fault
Err DRAMWork DRAM read/write fault
Err Wave ROMWave ROM data content fault
Err RAM for DSPDSP RAM read/write fault
Err EEPROMEEPROM read/write fault
Err DATA ROMDATA ROM data content fault
Err DATA TYPEDATA ROM type check fault
Err FDC EX PORTFDC EXISENCE PORT fault
If the test results were OK, the following display will appear.
(If the test result were NG, press [Transpose] to advance to next
test item.)
Press the [Transpose ] button to advance to item 3.
3. Button and LED check
All LEDs will light, and the following display will appear.
Note : If you wish to check item 3, do not press the
[Transpose] button first.
If you press the [Transpose] button first, you will
advance to item 4.
If all buttons are normal, you will automatically advance to item 4.
4. Checking the effect sound and panning etc.
Connect headphone cable into PHONES jack. Move volume
Slider Suitably.
The following display will appear and LEDs of [Track], [Count
In], [Metronome] will blink red.
Press the following buttons to check the effect sound and the
panning etc.
BUTTONPANNINGTONEEFFECTINDICATION of LCD
[R]CENTERPIANOnoneDRY
[1]CENTERPIANOCHORUSCHORUS
[2]CENTERPIANOREVERBREVERB
[3]CENTERPIANO
[4]LEFT
[Count In]
[Metronome]
RIGHT
CENTER440Hz sine wave nonePAN LR
440Hz sine wave
440Hz square wave
RESONANCE
nonePAN L
nonePAN R
RESONANCE
Press the [Transpose] button to advance to item 5.
5. Pedal operation check
Connect the Expression pedal and Foot pedal Expression to the
Expression Pedal Jack and Start/Stop Jack.
LEDs of [R] [1] buttons blink red and the following display will
appear.
At this time, you can move to item 6 by pressing [Transpose].
Slowly depress the Expression pedal and confirm that the value
on the LCD changes 0 to 9, and that themetronome sound
is heard when the display reaches "9." If test ends normally, [R]
LED goes dark.
Depress the Foot pedal and confirm that the "ON" displayed on
the LCD and metronome sound is heard.
Next release the pedal and confirm that the "OFF" displayed on
the LCD. If test ends normally, [1] LED goes dark.
If no problem is found, you will automatically advance to the
following item.
6. Encoder operation check
The following display will appear.
Rotate the Encoder clockwise. Value in the LCD increase and
when it reaches to "30", "OK" is displayed at INC of the LCD.
Next rotate the Encoder counterclockwise. Value in the LCD
decrease and when it reaches to "0", "OK" is displayed at DEC
of the LCD.
Press the [Transpose] button to advance to item 7.
Set the computer switch to the MIDI position. "▲" symbol will
be displayed to the middle of "MI" in the LCD.
Using a MIDI cable, connect the MIDI IN to the MIDI OUT
located at the back of MT300S.
If the test result is OK, the LCD will indicate "OK" as follows.
Computer interface operation check
⋅
Connect a computer test cable (part no. 17049906) to the
Computer connector located at the back of MT300S.
Set the computer switch to Mac, PC-1 or PC-2, an underline
will be displayed below the corresponding position
(zMc","P1" or "P2") in the LCD. Then turn on the switch of
the computer test cable. If the result is OK, "OK" will appear
at the each position of the LCD.
*In the case of computer switch is set to Mac.
In the case of the Mac settings, Check both ends of the white
conductor (signal) and black conductor (ground) of the test
cable by oscilloscope, and confirm that a 1 MHz square wave is
present.
Press the [Transpose] button to advance to item 8.
8. Floppy Disk Drive check
*NOTE : After this check, data within the disks will be lost.
The following display will appear.
Prepare the 2DD Disk and 2HD Disk.
Insert a 2DD disk (protect ON) and check the display [2DD :
Protected].
Insert a 2HD disk (protect OFF) and check the display [2HD :
OK].
If an error occurs, the problems will be indicated as follows.
Unformated-----Disk did not formatted correctory.
NG---------------There is a failure in the disk or disk drive.
Press the [Transpose] button to proceed to item 9.
7. シリアルインターフェースの確認
LCDが以下のような表示になります。
・MIDIの動作確認
コンピューター・スイッチをMIDI側にして下さい。
LCDの「MI」の左側に▲マークが表示されます。
本体背面のMIDIInとMIDIOutをMIDIケーブルで接続
して下さい。
OKならばLCDに以下の様に「OK」が表示されます。
・コンピューター・インターフェースの動作確認。
コンピューター・テストケーブル(Part
No.17049906)を本体背面のComputer端子に接続して
下さい。
コンピューター・スイッチをMac/PC-1/PC-2に切り替
えると、それぞれLCD上の「Mc」「P1」「P2」に下
線がつきます。ここで、コンピューター・テストケー
ブルのスイッチをONにすると正常ならばL CD 上の
「Mc」「P1」「P2」に以下のようにそれぞれ「OK」
が表示されます。
Macの場合はコンピューター・テストケーブルの端子
波形をオシロスコープで見て、1MHzのクロックが出
ていることを確認して下さい。
[移調]ボタンを押すと項目8に移ります。
8. ディスクチェック
*注意:このチェックを行うと、ディスクの内容が破
壊されます。
LCDが以下のような表示になります。
あらかじめ用意しておいた2枚のディスクを使用します。
ライトプロテクトをONにした2DDディスクを挿入し
て、LCDに「2DD:Protected」と表示されることを確
認します。
次にライトプロテクトをOFFにした2HDディスクを挿
入して、LCD「2HD:OK」と表示されることを確認
します。
ディスクを挿入したとき、以下のように表示される場
合があります。
Unformated・・・ディスクが正しくフォーマットされて
いない場合
NG・・・・・・・・・ディスクやFDDに何か不具合がある場合
[移動]ボタンを押すと項目9に移ります。
9. LCD check
When you enter this mode, the entire LCD will go dark.
Next, press the [Transpose] button and confirm that the LCD
lights entirely as following.
Press the [Transpose] button again. Confirm the following
display will appear in the LCD.
Press the [Transpose] button to proceed to item 10.
10. Destination region setting
The following display will appear.
"DOM" or "Exp" is indicated at
Now press the [Beat] button to select DOM (100V)
specifications, or press the [Tempo] button to select EXP (117/
230/240V) specifications.
* When you enter this setting, the MT300 will automatically
return to the factory settings.
Press [Transpose] button to proceed to the next test.
***
11. Exiting test mode
Then all test ends, the following display will appear.
To exit test mode, turn off the power.
(If press the [Transpose] button here, you can jump to the first
item of the Test Mode.)
12. Mic check
After exiting test mode, connect a mic to the Mic In jack and
rotate the knobs (Mic Volume and Mic Echo) to verify that
each function operates correctly.
9.LCDチェック
このモードに入るとLCDが全消灯します。
次に[移調]ボタンを押すとLCDが以下のように全点灯
することを確認してください。
更に[移調]ボタンを押すとLCDが以下のように表示さ
れます
表示が下図と同様であることを確認してください。
ここで[移調]ボタンを押すと項目10へ移ります。
10. 仕様地域の設定
LCDが以下のような表示になります。
***にはDOM(国内)またはEXP(海外)が表示されま
す。ここで[拍子]ボタンを押すとDOM仕様に、[テン
ポ]ボタンを押すとEXP仕様になります。
*この設定に入るとMT-300は自動的に工場出荷時の
設定に戻ります。
[移調]ボタンを押すと次のテストに移ります。
11. テストモードの終了
すべてのテストが終了すると、LCDに以下のように表
示されます。
ここでもう一度[移調]ボタンを押すと、テストモード
の最初に戻ります。
テストモードを抜けるには、一度電源を切って下さ
い。
12. マイクチェック
リアパネルのMicジャックにマイクを差し込み、Mic
Volume/MicEchoを回してそれぞれの機能が正常に動
作することを確認して下さい。
9
Page 10
MT-300Jan. 1999
A
BLOCK DIAGRAM/ブロック図
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
10
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MT-300Jan. 1999
A
CIRCUIT BOARD (MAIN)
/基板図(MAIN)
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
View from components side.
View from foil side.
R
S
T
U
V
11
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MT-300Jan. 1999
A
CIRCUIT DIAGRAM (MAIN) /回路図(MAIN)
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U
V
12
Page 13
MT-300Jan. 1999
A
CIRCUIT BOARD (ANALOG)
/基板図(ANALOG)
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
View from components side.
R
S
T
U
V
View from foil side.
13
Page 14
MT-300Jan. 1999
A
CIRCUIT DIAGRAM (ANALOG)
/回路図(ANALOG)
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
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Page 15
MT-300Jan. 1999
A
CIRCUIT BOARD (PANEL)
/基板図(PANEL)
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View from components side.View from foil side.
15
Page 16
MT-300Jan. 1999
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CIRCUIT DIAGRAM (PANEL) /回路図(PANEL)
B
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