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Instruction Manual
SERVICE MANUAL
MINIDISC RECORDER
MD-101A
MODEL
MINIDISC RECORDER
DISC LOADIING MECHANISM
INPUT
REC MODE
DUBBING
STANDBY / ON
STANDBY
DISPLAY
Silver models
MDT
120V AC, 60Hz
MGT, MGR
220-230V AC, 50/60Hz
SAFETY-RELATED COMPONENT
WARNING!!
COMPONENTS IDENTIFIED BY MARK
SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE
CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK.
REPLACE THESE COMPONENTS WITH ONKYO
PARTS WHOSE PART NUMBERS APPEAR AS SHOWN
IN THIS MANUAL.
MAKE LEAKAGE-CURRENT OR RESISTANCE
MEASUREMENTS TO DETERMINE THAT EXPOSED
PARTS ARE ACCEPTABLY INSULATED FROM THE
SUPPLY CIRCUIT BEFORE RETURNING THE
APPLIANCE TO THE CUSTOMER.
STANDBY/ON
PLAY MODE
CONTINUE
RANDOM
MEMORY
A
B
C
1
2
3
F
G
H
8
6
7
K
L
M
13
11
12
P
Q
R
16
18
17
U
V
W
21
22
23
Z
REPEAT
A-B
A.SPACE
>25
/
?
!
REC
MULTI JOG
SCROLL
DISPLAY
EDIT / NO YES
CD
REC
PUSH TO ENTER
RC- 475 MD
REMOTE
CONTROLLER
-
101 A
MD
RC-475MD
ON THE
MD-101A
Ref. No. 3703
112001
EJECT
D
E
4
5
I
J
9
10
N
O
14
15
S
T
19
20
X
Y
24
25
.
,
M.SCAN
(
)
CLEAR
ENTER
NAME
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Table of Contents
Related Manuals for Onkyo MD-101A
Summary of Contents for Onkyo MD-101A
- Page 1 COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE...
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Page 2: Specifications
MD-101A SPECIFICATIONS System Number of channels MiniDisc digital audio system 2 (stereo) Recording system Frequency response Magnetic field modulation overwrite system 10 Hz - 20 kHz ( 0.5 dB) Signal read out system Signal to noise ratio Optical non-contact 100 dB or more when playing... -
Page 3: Display Messages
MD-101A DISPLAY MESSAGES Message Meaning Auto Space This message appears during the track intervals when A. Space is turned on. Blank Disc A new recordable MD or a recordable MD without disc or track names is inserted. Cannot Copy An attempt was made to record copyright-protected material. An attempt was made to make a... -
Page 4: Protection Of Eyes From Laser Beam During Servicing
MD-101A SERVICE PROCEDURES PROTECTION OF EYES FROM LASER BEAM DURING SERVICING This set employs a laser. Therefore, be sure to follow Laser Diode Properties carefully the instructions below when servicing. Material: GaAS/GaAlAs Wavelength: 780 nm WARNING!! Emission Duration: Continuous SERVICE WARNING : DO NOT APPROACH THE Laser output: MAX. -
Page 5: Panel Views
MD-101A PANEL VIEWS-1 FRONT PANEL Ventilation CD DUBBING holes button Disc slot INPUT EDIT/NO button button REC MODE Remote control REC button ( REC) button sensor YES button Eject button STANDBY/ON button MULTI JOG knob FF/FR button Stop button STANDBY... - Page 6 DAT deck, etc. Connection to AC outlet Connecting to the Amplifier (UNSWITCHED) Connect the MD-101A to the MD (or TAPE) The power cord of another unit can be connected jacks of your amplifier. to this outlet. Connecting to the Digital Input...
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Page 7: Remote Controller
MD-101A REMOTE CONTROLLER RC-475MD (supplied) STANDBY/ON button STANDBY/ ON EJECT EJECT button A-B repeat button PLAY MODE CONTINUE RANDOM MEMORY PLAY MODE buttons Uppercase and CONTINUE buttons lower case letters, RANDOM button symbols, and MEMORY button numbers (1~10) buttons Number buttons A.SPACE button... -
Page 8: Exploded View
MD-101A EXPLODED VIEW P702 P901 F901 P801 E801 T901... -
Page 9: Exploded View Parts List
MD-101A EXPLODED VIEW PARTS LIST REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION 27111252 Front bracket E801 260208 Binder, UL AS-CEE or P901 253336VOL or 3TTB+8B, Self tapping screw 838130088 253335HIT AS-CEE, Power supply cord <GT> Chassis 27100411... - Page 10 MD-101A EXPLODED VIEWS OF MECHANISM-1 MD MECHANISM: KMK-260EDN SW1-SW4 The mechanical parts with no part number PARTS LIST in the exploded views are not supplied. REF NO. PART NO. DESCRIPTION REF NO. PART NO. DESCRIPTION Motor Plate ass'y 2646-562-01 Spring, Tension coil 7685-791-01 Screw +PTT2.6 x 5(S)
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Page 11: Exploded View Of Mechanism
MD-101A EXPLODED VIEW OF MECHANISM-2 MD MECHANISM: KMK-260EDN The mechanical parts with no part number PARTS LIST in the exploded views are not supplied. REF. NO. PART NO. DESCRIPTION 3348-998-51 Pan tapping screw(M1.4×3.5) 2167-550-01 Plate(M), Pre load Wire, SL motor lead... - Page 12 MD-101A EXPLODED VIEWS OF MECHANISM-3 MD MECHANISM: KMK-260EDN MD Mount view Side-A IC121 IC171 IC125 Test point-A IC201 for adjustment D101 I+3V IC101 AGND Side-B Q162 CN103 Q102 Test point (No use) Q101 IC104 IC103 Q103 IC105 X201 CN102 To main borad...
- Page 13 MD-101A EXPLODED VIEWS OF MECHANISM-4 MD MECHANISM: KMK-260EDN L-SW PC BOARD VIEW D-SW PC BOARD VIEW CN108 CN107 The mechanical parts with no part number PARTS LIST (MD mount section) in the exploded views are not supplied. REF. NO. PART NO.
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Page 14: Block Diagram
MD-101A BLOCK DIAGRAM AC OUTLET T901 POWER TRANSFORMER D901 Q801 FL TUBE L901 WITH DRIVER IC Q901 +36V(Q801,Q802) HCA-14SS02T D902,D913 RESET(Q701) Q711 POFF(Q701) AC IN BMR0101 Q703,Q704 M+5V(MD MECHA) Q905 Q803 Q802 OPERATION 7805 Q713,Q705 H+5V(MD MECHA) REMOTE SUB MICROPROCESSOR... -
Page 15: Schematic Diagrams
MD-101A SCHEMATIC DIAGRAMS N O T E T H E C O M R E P L A C E . V O L T A G E Q801 . E L E C T R O HCA-14SS02T . A L L C A P A... - Page 16 MD-101A A R E C R I T I C A L F O R S A F E T Y . C O M P O N E N T S I D E N T F I E D...
- Page 17 MD-101A PC BOARD CONNECTION DIAGRAM ANALOG DIGITAL INPUT REMOTE INPUT OUTPUT CONTROL NAETC-7302 AC outlet ROUT NAAR-7298 PC board LOUT Main circuit PC board -11V P904 +10.2V AC IN NADG-7299 Microprocessor +3.3V PC board -5.0V POWER CONT JL901B +5.1V +5.1V...
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Page 18: Display Pc Board
MD-101A PRINTED CIRCUIT BOARD VIEWS-1 DISPLAY PC BOARD (NADIS-7301) J205 Component side P801B J204 S807 J200 S810 S811 S812 NCDIS-7301 Q803 S807 25137301 S805 J203 X702 Q801 INPUT LP_MODE CD_DUB J198 J189 J197 STANBY/ON Soldering side E855 J190 J199 S813... - Page 19 MD-101A PRINTED CIRCUIT BOARD VIEWS-2 MICROPROCESSOR PC BOARD (NADG-7299) Component side Soldering side E851 C212 C211 R215 J159 J157 J156 R222 R913 R221 J153 C213 J152 D201 J154 J151 J150 J149 J148 J147 J146 C705 AGND LOUT AGND C925 ROUT...
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Page 20: Power Supply Pc Board
MD-101A PRINTED CIRCUIT BOARD VIEWS-3 POWER SUPPLY PC BOARD (NAAR-7298) Component side C913 P402 C914 D901 C905 C913 C914 J903 C906 R105 J914 J902 J910 J905 J917 J908 J904 J901 J922 Q904 C918 J923 C910 C917 P905 P906 P903 J909... -
Page 21: Printed Circuit Board Parts List
MD-101A PRINTED CIRCUIT BOARD PARTS LIST-1 MAIN CIRCUIT PC BOARD (NAAR-7298-1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION Q101 22240608R1 NJM2100M Q401,Q402 24120083 or GP1FA550RZ 24120086 GP1FA551RZ Q403 222740046R2TO TC74HCU04F Q902,Q906 22278005ENE MPC29M05HF Q905 22278005DNE MPC2905HF Q907 22278033ENE MPC29M33HF Transistors Q405,Q908 2216480R2 or... - Page 22 MD-101A PRINTED CIRCUIT BOARD PARTS LIST-2 MICROPROCESSOR PC BOARD (NADG-7299-1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION Q203,Q204,Q709 22241383R2 NJM4565M-D Q701 22241670R3 MPD780056GC-038-8BT Q702 222740046R2TO TC74HCuF04F Q711 22241210 BMR-0101D Transistors Q201,Q202 2211705 or 2SD655-E or Q205,Q206 2211706 2SD655-F Q703,Q704 2211705 or 2SD655-E or...
- Page 23 MD-101A PRINTED CIRCUIT BOARD PARTS LIST-3 POWER SUPPLY PC BOARD (NAPS-7300-1B/1C/1D) CIRCUIT NO. PART NO. DESCRIPTION Coil L901 231287 NCH-3567, Choke coil Capacitors C901,C902 3300030 DE1307E472M-KH, IS <GT,GR> 3300031 DE1607F103M-KH, IS <DT> Plug P901A 25055675 NPLG-2P631 Holder JL901A 25051111 NSCT-7P898, Wire holder DISPLAY PC BOARD (NADIS-7301-1B/1C/1D) CIRCUIT NO.
- Page 24 MD-101A FL TUBE VIEW Q801:HCA-14SS02T ARTIST CD-RW SKIP ON FINALIZE 13Ga 13Gb 13Gc 13Gd 14Ga 14Gb 14Gc 14Gd (13G) (12G - 1G) -R W SKIP ON 25 26 11 12 13 14 15 ARTIST FINALIZE 16 17 18 19 20...
- Page 25 MD-101A MICROPROCESSOR CONNECTION DIAGRAM Q101(1/2) BUFFER AMP P101 L IN MD MECHANISM R IN Q203(2/2) INPUT Q203(1/2) KMK-260EDN L OUT ANALOG MUTE R OUT Q201 OUTPUT Q205 D IN1 +3.3 V +4.8 V D IN2 Q707 Q708 Q702 BUFFER 74HCV04...
- Page 26 MD-101A MICROPROCESSOR TERMINAL DESCRIPTIONS-1 Q701: MPD780056GC-033-8BT (MAIN MICROPROCESSOR) PIN NO. FUNCTION DESCRIPTION PIN NO. FUNCTION DESCRIPTION Not used. (Connect to ground) METEST The input terminal for test mode setup of MD mechanism. NOT USED (GND) Pulse input terminal from rotary encoder (MULTI JOG).
- Page 27 MD-101A MICROPROCESSOR TERMINAL DESCRIPTIONS-2 Q802: TMP87C447uF-3GC (SUB MICROPROCESSOR) PIN NO. FUNCTION DESCRIPTION PIN NO. FUNCTION DESCRIPTION SUB_CLK Input terminal of serial data clock from main microprocessor. NOT USED Not used. (Connect to ground) NOT USED Not used. (Connect to ground)
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Page 28: Adjustment Procedures
MD-101A ADJUSTMENT PROCEDURES-1 The necessity for adjustment necessary unnecessary The exchanged parts Adjustment item Parts on MD REMARKS Mechanical Pickup unit mount, parts and Motors Adjustment of Temperature Compensation Offset Adjustment of laser power Check of laser power Adjustment of Traverse (EF balance) - Page 29 MD-101A ADJUSTMENT PROCEDURES-2 Explanation in test mode Time chart 1. How to test mode to enter (1) Connect the power supply cord in the wall socket. push (2) While hold down the YES button, press the DISPLAY button at standby state.
- Page 30 MD-101A ADJUSTMENT PROCEDURES-3 Preparation of adjustment 1. Make the extended JIG and connection. PC board Jumper wire Socket Part No.NCJIG-0J12 Part No.25052307 Connect to the MD mechanism Extended JIG (KIT) Part No.0J12 Flexible flat cable Part No. 0F001 Connect to the...
- Page 31 MD-101A ADJUSTMENT PROCEDURES-4 The adjustment method Adjustment of temperature compensation value [NONE] (1) Perform circumference temperature in the 22 to 28 degrees state. (2) Adjust, after exchanging D101, and the temperature of this part turns into the same temperature as circumference temperature.
- Page 32 MD-101A ADJUSTMENT PROCEDURES-5 Adjustment of laser power [Preparation] (1) Connect digital volt meter to I+3V and IOP on Extended JIG. (2) Set the optical sensor to laser power meter. (3) Loading of the optical sensor to the unit. Extended JIG Digital volt meter Part No.
- Page 33 MD-101A ADJUSTMENT PROCEDURES-6 Adjustment of traverse (EF balance) [Preparation] (1) Connect oscilloscope to TE and VC on Extended JIG. [NOTE] Do not connect the VC to the GND of the unit. (2) Loading the MO disk to the unit. Oscilloscope Extended JIG Part No.
- Page 34 MD-101A ADJUSTMENT PROCEDURES-7 Check of the error rate by the high reflectance disk [Preparation] (1) Loading of the high reflectance disk to the unit. [Check] (1) Turns the JOG knob and select the CPLAY MOD E CP LAY MOD E (2) Press the JOG button .
- Page 35 MD-101A ADJUSTMENT PROCEDURES-8 Check of the error rate by the MO disk [Preparation] Make the continuation recording disk used for the check of the error rate. If the disk created by other sets is used, since the check with normal recording cannot be performed, please carry out self-recording reproduction with the same set.
- Page 36 MD-101A ADJUSTMENT PROCEDURES-9 Adjustment the focus bias When an error rate is worse than the standard value, perform this work. [Preparation] (1) Loading the continuation recording disk to the unit. [Adjustment] (1) Turns the JOG knob and select the C PLAY MODE CP LAY M ODE.
- Page 37 MD-101A ADJUSTMENT PROCEDURES-10 Check of focus bias When an error rate is worse than the standard value, perform this work. [Preparation] (1) Loading of the continuation recording disk to the unit. [Check] (1) Turns the JOG knob, and select the CPLAY MOD E CPLAY MODE.
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Page 38: Packing View
MD-101A PACKING VIEW PARTS LIST REF NO. PART NO. DESCRIPTION 29092023A Pad AS 29092023-1A Pad AS MANUFACTURED IN MALAYSIA 29053832 Carton <DT,GT> Carton <DT,GT> MADE IN JAPAN 29053832-1 29053833A Carton <GR> MANUFACTURED IN MALAYSIA 29053833-1A Carton <GR> MADE IN JAPAN... - Page 39 Sales & Product Planning Div. : 2-1, Nisshin-cho, Neyagawa-shi, OSAKA 572-8540, JAPAN Tel: 072-831-8111 Fax: 072-833-5222 ONKYO U.S.A. CORPORATION 18 Park Way, Upper Saddle River, N.J. 07458, U.S.A. Tel: 201-785-2600 Fax: 201-785-2650 E-mail: onkyo@onkyousa.com ONKYO EUROPE ELECTRONICS GmbH Industriestrasse 20, 82110 Germering, GERMANY Tel: 089-849-320 Fax: 089-849-3265 E-mail: info@onkyo.de...