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Kenwood MDX-01 Service Manual

Md personal stereo system
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MD PERSONAL STEREO SYSTEM
MDX-01/02
QQ
3 7 63 1515 0
SERVICE MANUAL
Front cabinet(OUTER) ass'y
(A60-1942-08): L
(A60-1943-08): R
(A60-1944-08): D
(A60-1946-08): H
(A60-1947-08): S
TE
L 13942296513
Handle
(K01-0139-08)
Rear cabinet
(A02-2987-08): S
(A02-2988-08): DHLR
AC socket
(E03-0375-08)
www
D: ORANGE, H: GREY, L: BLUE, R: RED, S: SILVER
In compliance with Federal Regulations, following are
.
repro-duction of labels on, or inside the porduct relating to
laser product safety.
Note:
Please contact KENWOOD service in your side if
you want to get the AC power cord.
EJECT
DISC LOADING MECHANISM
MD PERSONAL STEREO SYSTEM
MD door
(A52-0918-08)
AC IN
x
ao
u163
y
i
2 9
8
Door lens
(B12-0408-08): L
(B12-0409-08): R
(B12-0410-08): D
Q Q
3
6 7
1 3
1 5
(B12-0412-08): H
(B12-0413-08): S
ANTENNA
AM
ANTENNA
co
KENWOOD-Crop. certifies this equipment conforms to DHHS
.
Regulations No.21 CFR 1040. 10, Chapter 1, Subchapter J.
DANGER : Laser radiation when open and interlock defeated.
AVOID DIRECT EXPOSURE TO BEAM.
9 4
2 8
© 2000-12/B51-5691-00 (K/K) 332
Knob A
(K27-7893-08): S
(K29-7895-08): L
(K29-7896-08): H
(K29-7898-08): D
(K29-7899-08): R
REPEAT
MD REC
BEST HITS
MENU
SET/DEMO
SOUND
VOLUME/MULTI CONTROL
TUNE
STOP/
TUNING
MODE
TUNING
STANDBY/TIMER
POWER
TUNER
FM/AM
CD
MD
PUSH OPEN
Knob B
(K29-7900-08)
Top plate R ass'y
(A60-2059-08): DHLR
0 5
8
2 9
9 4
2 8
(A60-2060-08): S
Door
(A52-0914-08): DHLR
(A52-0915-08): S
Handle(REAR)
(K01-0134-08): L
(K01-0135-08): H
(K01-0137-08): D
(K01-0138-08): R
(K01-0140-08): S
Antenna terminal
(E70-0114-08)
9
FM 75
GND
PHONES
Stereo jack
(E11-0398-08)
m
9 9
9 9
70%

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  Summary of Contents for Kenwood MDX-01

  • Page 1 DANGER : Laser radiation when open and interlock defeated. Note: AVOID DIRECT EXPOSURE TO BEAM. Please contact KENWOOD service in your side if you want to get the AC power cord.
  • Page 2: Table Of Contents

    MDX-01/02 3 7 63 1515 0 CONTENTS / ACCESSORIES Contents CONTENTS / ACCESSORIES ........2 PC BOARD .............. 10 DISASSEMBLY FOR REPAIR........3 SCHEMATIC DIAGRAM .......... 13 CIRCUIT DESCRIPTION ..........4 EXPLODED VIEW ............25 ADJUSTMENT ............8 PARTS LIST..............27 PARTS DESCRIPTIONS ..........9 SPECIFICATIONS ........Back cover...
  • Page 3: Disassembly For Repair

    MDX-01/02 3 7 63 1515 0 DISASSEMBLY FOR REPAIR 1. How to Remove Front Cabinet 1. Remove 6 screws(1) from the rear cabinet side. 2. Remove 2 screws(2) fixed CD and the front cabinet. 3. Remove 3 screws(3) from the bottom front side.
  • Page 4: Circuit Description

    MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION 1. INITIALIZATION 3-3 Key Function in Test Mode CD MODE MD MODE 1 1-1 How to Set Initialization T-SERVO ON(05) u w CD PLAY Insert the power cord to AC outlet with pressing REPEAT T-SERVO OFF(03) –...
  • Page 5 MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION When removing the flexible board from the connector, 4-5 Continuous Playback Mode make a solder bridge in advance, then remove the 1. Setting of Continuous Playback Mode Display/Function board. Be careful not to remove the solder bridge before 1 4 ¢...
  • Page 6 MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION Laser 1. Recordable Disc power meter Display/Function Connect the oscilloscope to TE1 and VC in X33 pcb 2 4 ¢ Select [EFBAL ADJU] Objective lens of Load the recordable disc optical pick up...
  • Page 7 MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION 5-8 Focus Bias Adjustment C1 error Use the special disc(continuous recorded disc) Display/Function 1 4 ¢ Select [FBIAS ADJU] Load the disc. 3 PLAY [a=xx yyyy/] point a (xx=focus bias, yyyy=C1 error) 4 4 ¢...
  • Page 8 MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION 6-2 Microprocessor's Port Description ACTIVE Port # Port Name Description No use EEP ROM data EEP ROM clock RELAY Main power supply control No power supply detection AC ON AC OFF BYTE...
  • Page 9 MDX-01/02 3 7 63 1515 0 CIRCUIT DESCRIPTION ACTIVE Port # Port Name Description OPEN No use HI SP Recording signal in high speed mode NORMAL SCLK CD sense clock SENS CD sense CD CLK Clock for CD DSP XLAT...
  • Page 10: Adjustment

    MDX-01/02 3 7 63 1515 0 ADJUSTMENT CD section INPUT CD PLAYER OUTPUT ITEM ALIGNMENT ALIGN FOR FIG. SETTINGS SETTINGS SETTINGS TEST MODE : While pressing the MD REC key ,plug the power cord into the AC power wall output.
  • Page 11: Parts Descriptions

    MDX-01/02 3 7 63 1515 0 PARTS DESCRIPTIONS L 13942296513 u163...
  • Page 12: Pc Board

    PC BOARD (Component side view) 3 7 63 1515 0 DISPLAY UNIT CN802 D801 CN801 D802 R813A J802 VR801 KEY UNIT C809 MD EJECT R504A IC801 REPEAT MD REC. BEST HITS SW801 R505A SW505 SW510 SW503 L 13942296513 MENU SET / DEMO SOUND R514A R513A...
  • Page 13: Schematic Diagram

    PC BOARD(Component side view) 3 7 6 3 1 5 1 5 0 POWER UNIT R708A C709 D704 D406 C350A Q701 CN605 J703 J448 CN603 C306 C349A D703 R313A R314A R701A C340 R703A C704A Q703 R716A C337 C619A C620A C304 C706A D702 Q702...
  • Page 14 MD MECHANISM (D40-1706-05) : MDM-06G (X33-1270-00) (X29-) (B/2) 3 7 6 3 1 5 1 5 0 DISC ID HEAD POSI LOAD SW SLT SW (X29-2650-00) (A/2) LOAD M- LOAD M+ SPDL+ 3.3V SPDL- SLED+ SLED- 0.8V LOAD DIGITAL PLAY ADJUSTMENT 0.9V TOP2...
  • Page 15 R13 100 BACKUPV 3.5V +3.3V +3.3V u 1 6 3 HGND 5.1V 26 H+5V MDX-01/02(M) (1/4) MDX-01/02 DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise reduction circuit made under license from Dolby Laboratories Licensing Corporation. Y39-3890-20...
  • Page 16 SIGNAL LINE w w w GND LINE L102 100uH B LINE u 1 6 3 MDX-01/02 (2/4) MW ANT R148A 1K R129A 33K L101 2.2uH AM ANT The DC voltage is an actual reading measured with a high impedance type volt-...
  • Page 17 (REC) refers to the value during MD RECORDING. 4ch BTL DRIVER 5.0V R238A D202 180K R243A 4.7K CN202 Q204 5.0V DM(+) 7.4V DM(-) Q204 FM(+) FM(-) L.SW 7.4V R244 1 1W +7.5V +7.5V +7.5V L.SW w w w MDX-01/02 (3/4) u 1 6 3 MDX-01/02 Y39-3890-20...
  • Page 18 POWER UNIT CN403 X33- TU.R 3 7 6 3 1 5 1 5 0 LCD DISPLAY UNIT TU.GND TU.L SEGMENT 9.4V(TU) +9.4V R456A 100 R455A 100 TUNER R488A 3.3K R454A 100 UNIT TU.CE -CN101 R487A 3.3K R453A 100 TU.DATA R489A 3.3K R452A 100 TU.CLK R457A 100...
  • Page 19 1000P C411A GND LINE 32.768KHz 0.01 SW504 SW514 SW512 R479A B LINE X402 u 1 6 3 10MHz REPEAT MENU MDX-01/02 (4/4) C409A 1000P SW505 SW509 SW513 4.8V SOUND MD REC SW401 CD DOOR SWITCH MDX-01/02 SW506 SW510 +5.6V +5.6V...
  • Page 20: Exploded View

    MDX-01/02 3 7 63 1515 0 EXPLODED VIEW (MECHANISM) RHMD PUMD X29 (B/2) LMMD L 13942296513 FMMD DMMD X29 (A/2) M2x4 N86-2004-46 2.6x10 N09-2817-05 N09-4154-05 M1.7x2 N09-3104-05 M1.7x3 N09-3279-05 M1.7x4.5 N39-1745-46 u163 1.4x2.2 N79-1422-46 X33-1270 MDM-06G (MDX-01/02) Parts with exploded numbers larger than 700 are not supplied.
  • Page 21 : N83-2005-46 TUNE MODE : N83-2008-46 SW508 SW507 SW511 (Pink) POWER TUNER FM/AM SW504 SW509 SW502 SW501 L 1 3 9 4 2 2 9 6 5 1 3 ANTENNA JK101 SW801 PHONES JK602 (26P) MDX-02 MDX-01/02 u 1 6 3...
  • Page 22 Ref. No Parts No. Description ress Parts nation marks marks ress Parts nation ✽ G01-4245-08 DOOR SPRING 162-50001-312 MDX-01/02 S:SILVER, D:ORANGE, H:GREY, L:BLUE, R:RED ✽ G11-2785-08 CUSHION(BLUE) 161-07213-002 1C,1D ✽ G11-2786-08 CUSHION(PINK) 161-07213-102 ✽ A02-2987-08 REAR CABINET 102-50000-0974 ✽ 2C,2E...
  • Page 23 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 24 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 25 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 26 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 27 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 28 3 7 6 3 1 5 1 5 0 ✽ New Parts ✽ New Parts Parts without Parts No. are not supplied. Parts without Parts No. are not supplied. Les articles non mentionnes dans le Parts No. ne sont pas fournis. Les articles non mentionnes dans le Parts No.
  • Page 29: Parts List

    Australia Canada China England Europe Germany Korea Malaysia Ref. No Parts No. Description ress Parts nation marks MODEL ABB. D10-3859-08 CHANGE MDX-01-D D13-1792-08 RACK GEAR MDX-01-L D13-1918-08 GEAR IDLER D13-1917-08 GEAR INTERMEDIATE MDX-01-LH D13-1919-08 GEAR DRIVE MDX-01-R D13-1921-08 GEAR FEED...
  • Page 30: Specifications

    H : 170 mm Wow & flutter ....... Below measurable limit D : 190 mm Weight ............ 4.6 kg (net) ÷ KENWOOD follows a policy of continuous advancements in development. For reason specifications may be changed without notice. Notes Notes ÷...

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Mdx-02