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Instruction Manual
MD PERSONAL STEREO SYSTEM
MDX-G3
QQ
3 7 63 1515 0
SERVICE MANUAL
TE
L 13942296513
Rod antenna
(T90-0828-05)
Miniature phone jack
(E11-0399-05)
AC inlet
(E03-0374-05)
www
L: BLUE, S: SILVER, R: RED
In compliance with Federal Regulations, following are repro-
.
duction of labels on, or inside the product relating to laser
product safety.
Note:
Please contact KENWOOD service in your side if
you want to get the AC power cord.
Arm
(D10-3983-04)
T
x
ao
u163
y
i
2 9
8
Handle
(K01-0127-03): L
(K01-0143-03): SR
Q Q
3
6 7
1 3
APE
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 defeat-
ed.
AVOID DIRECT EXPOSURE TO BEAM.
9 4
2 8
© 2001-1/B51-5697-00 (K/K) 329
Dressing panel
(A21-3897-03): L
(A21-3926-03): SR
1 5
0 5
8
2 9
9 4
m
co
9 9
Knob ass'y
(K29-7870-04): L
(K29-7918-04): SR
2 8
9 9
Panel ass'y
(A60-1975-11): L
(A60-1982-11): S
(A60-1986-11): R
Plastic cabinet ass'y
(A02-2996-01)
Miniature phone jack
(E11-0399-05)
70%
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Summary of Contents for Kenwood MDX-G3
- Page 1 Regulations No.21 CFR 1040. 10, Chapter 1, subchapter J. product safety. DANGER : Laser radiation when open and interlock defeat- Note: Please contact KENWOOD service in your side if AVOID DIRECT EXPOSURE TO BEAM. you want to get the AC power cord.
-
Page 2: Table Of Contents
MDX-G3 3 7 63 1515 0 CONTENTS / ACCESSORIES / CAUTIONS Contents CONTENTS / ACCESSORIES / CAUTIONS..... 2 PC BOARD .............. 13 EXTERNAL VIEW ............3 SCHEMATIC DIAGRAM .......... 16 DISASSEMBLY FOR REPAIR........4 EXPLODED VIEW ............29 CIRCUIT DESCRIPTION ..........5 PARTS LIST..............31 ADJUSTMENT ............10... -
Page 3: External View
MDX-G3 3 7 63 1515 0 EXTERNAL VIEW Top cover ass'y (A52-0920-21): L (A52-0922-21): S Rod antenna (A52-0924-21): R (T90-0828-05) L 13942296513 CD/MD HIGH SPEED DUBBING SYSTEM u163... -
Page 4: Disassembly For Repair
MDX-G3 3 7 63 1515 0 DISASSEMBLY FOR REPAIR 1. How to Remove Front Panel 1. Remove 6 screws(1) from the rear side. X09 (G/7) -CN502 2. Remove 2 screws(2) from the bottom side. X28-CN1 3. Slide the front panel frontwards and pull out the connec- tors and FPC. -
Page 5: Circuit Description
MDX-G3 3 7 63 1515 0 CIRCUIT DESCRIPTION 1. Initializing 2. Tuner Destination Destin- Receiving Channel 1-1 Initialization Method Band ation Frequecy Range Space • While pressing the [POWER] key, turn the AC on. 87.5MHz 108.0MHz 50kHz +10.7MHz 25kHz 531kHz 1602kHz... - Page 6 MDX-G3 3 7 63 1515 0 CIRCUIT DESCRIPTION 2 Tuner Destination(Pin3) 4-2 Key Matrix Input Voltage Value : 4.6V Input Voltage(V) Type Input Voltage(V) KEY2(Pin7) KEY1(Pin8) 0.00~2.50 J(Japan) 0.00 0.45 POWER BEST HITS 2.51~4.6 M(Asia) 0.43 1.10 SOUND MD REC 1.13 1.78...
- Page 7 MDX-G3 3 7 63 1515 0 CIRCUIT DESCRIPTION Active Port No. Port Name Description Microcomputer power supply (+5v). MDATA CD DSP command data output. STAT CD DSP status signal input. MCLK CD DSP command clock signal output. CD DSP command load signal output.
- Page 8 MDX-G3 3 7 63 1515 0 CIRCUIT DESCRIPTION 5. Test Mode 5-1 Setting method of the Test Mode 5-2 Cancel of the test mode TEST MODE SETTING METHOD • By turning the AC off, the system is initialized and the test...
- Page 9 MDX-G3 3 7 63 1515 0 CIRCUIT DESCRIPTION Mechanism half switches indication The mechanism half switches status are indicated "blank" or "E "on the display. 7th Dot(Display) 1st figure 2nd figure 3rd figure 4th figure Mechanism FWD REC Inhibit RVS REC Inhibit CrO2(TYPE¿)
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Page 10: Adjustment
MDX-G3 3 7 63 1515 0 ADJUSTMENT Cassette Deck adjustment 0dBs=0.775V INPUT OUTPUT DECK ALIGNMENT ITEM FIG. ALIGN FOR SETTING SETTING SETTING POINT ø. CASSETTE MECHANISM UNIT Demagneti- Demagnetize the REC / PLAY head Recording Demagneti- zation: with the head eraser.Clean the REC head, erase <... - Page 11 MDX-G3 3 7 63 1515 0 ADJUSTMENT CD player check INPUT OUTPUT PLAYER ALIGNMENT ITEM ALIGN FOR FIG. SETTING SETTING SETTING POINT Step 1~2 are in TEST MODE TEST MODE : While pressing the [CD PLAY/PAUSE] key, turn power on.
- Page 12 CN51 MECHANISM ASS'Y E35-2719- CN21 (D40-1640- E35-2722- 5 T401 CN24 TEST CN22 POINT CN23 DISPLAY UNIT (FL) TACT SWITCH (X09- ) (G/7) (X09- ) (F/7) CHECKING WH501 CN25 E35-2723- 5 CN502 OP/CL CN501 WH21 INPUT u 1 6 3 MDX-G3...
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Page 13: Pc Board
PC BOARD (Component side view) 3 7 63 1515 0 X28-3130-00 (J70-1471-11) BIAS R121 R119 R-PLAY R103 C104 VREF R104 C110 R123 C103 R113 R102 C102 R100 MUTE R116 R117 L 13942296513 X33-1260-00 A/2 (J70-1452-02) R100 X33 B/2 R102 R101 B E B R103 R113... -
Page 14: Schematic Diagram
PC BOARD(Component side view) 3 7 6 3 1 5 1 5 0 AUX IN X09-6440-21 A/7 (J70-1470-21) AC IN X09 B/7 WH56 PHONES X09 C/7 Q401 R405 D408 D442 D443 D409 D444 -30V AVR D445 D411 D424 D402 D410 D404 D403 D423... - Page 15 (X33-1260-00) (A/2) : CXD2662R 3 7 6 3 1 5 1 5 0 : UMW1N SPDL+ : CXA2523AR Q2,9 : 2SA1576A(R,S) SPDL- CXA2523AR : 2SB798-DL SLED+ : HD6432227N14FA Q4,11 : DTA144EUA BA5984FP Q5,6 : DTC114YUA SLED- : LC32S4400T-10 : DTA124EUA LOAD M+ : RC1117ST Q8,10...
- Page 16 AINR DIGITAL IN 2SC4081 DTA114EUA MECHARST DTA124EUA DTC124EUA w w w BACKON R65 100 CRXD R66 100 u 1 6 3 +3.3V +3.3V +3.5V CTXD R50 100 BACKUPV 3.5V +3.5V +3.5V(OUT PUT) HGND 5.0V 26 H+5V MDX-G3 MDX-G3 (1/3) Y39-3740-21...
- Page 17 1 6 3 (SJ3MD ONLY) REC-R-SW PLAY SW MDX-G3 (2/3) MDX-G3 The DC voltage is an actual reading measured with a high impedance type voltmeter with a cassette DOLBY and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation. Noise loaded at playback mode.
- Page 18 X33-A/2 (X09- ) (E/7) : M61510FP Q101,203,205 : 2SC4081 (R,S) or D29,202,203,301,302, D421,422 : D3SBA20F03 3 7 6 3 1 5 1 5 0 : HD74LV1G08A 2SD1819A (Q,R) 446-448 : 1SS302 or D428 : MTZJ10 (B) or IC11 : MN101C49KLA Q201,204 : 2SA1577 (Q,R) DA204U or...
- Page 19 3 7 6 3 1 5 1 5 0 (X09-6440-21) (A/7) 5.0V LEVEL SHIFT AUX IN 35V) 3.5V 2.2K +3.5V 5.2V 20uH 100u10 R190 R193 1000P 2.2K 9.0V (BOTTOM VIEW) R192 5.0V 2.4V 5.0V 5.0V 100u10 9.0V TA +9V L PLAY OUT TA MGND CD : 9.1V 220P...
- Page 20 (X09- ) (C/7) (X09- ) (G/7) 3 7 6 3 1 5 1 5 0 CN54 IC52 IC53 ED501 FIL A D448 POWER AMP FIL B CD 9V MD 5V TAPE 9V INPUT D447 PRE DRIVE OOUTPUT PROT. DRIVE DRIVE DRIVE F.OFF OUTPUT...
- Page 21 -33.1V R526 SDATA BA5984FP R518 KEY1 KEY2 R517 STANDBY TIMER ENC1 R524 ENC2 VCC +5V BR24C02F MDX-G3 (3/3) (X09- ) (F/7) S-80840ANY R504 2.2K R505 3.3K R506 6.2K R507 13K S504 S505 S506 S507 S508 CD PLAY/ MD PLAY/ DECK...
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Page 22: Exploded View
MDX-G3 3 7 63 1515 0 EXPLODED VIEW (MD MECHANISM) LMMD DMMD L 13942296513 FMMD RHMD PUMD u163 MDM-07(1) (MDX-G3) Parts with exploded numbers larger than 700 are not supplied. - Page 23 S509 S510 S511 S512 S513 S517 BEST TAPE CD PLAY/ MD PLAY/ DECK TUNER PAUSE PAUSE PLAY ELECT S501 S502 S503 S504 S505 S506 S507 (X09-) S515 (E/7) MENU S516 SET/ (X09-) DEMO (C/7) S508 MDX-G3 u 1 6 3...
- Page 24 Parts No. Description Ref. No Parts No. Description ress Parts nation marks marks ress Parts nation J02-1471-05 INSULATOR MDX-G3 L:BLUE, S:SILVER, R:RED ✽ J02-1505-05 INSULATOR J11-0852-03 CLAMPER ASSY ✽ A02-2996-01 PLASTIC CABINET ASSY ✽ J19-6146-14 HOLDER A09-1151-08 BATTERY COVER J52-0039-05 PUSH LATCH ✽...
- 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 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 30 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 31 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.
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Page 32: Specifications
Over sampling frequency ......8 fs (352.8 kHz) Frequency response ........20 Hz to 20 kHz Wow & flutter ...........Unmeasurable limit ¶ KENWOOD follows a policy of continuous advancements in development. For this reason specifications may be changed without Notes notice. ¶The full performance may not be exhibited in an extremely cold location (under a water-freezing temperature). - Page 33 Av. Moema, 170-17˚, Andar-Cobertura “B”, Ed. Maximum Service Center, 04077-020 Moema, São Paulo-SP-Brasil KENWOOD ELECTRONICS U.K. LIMITED KENWOOD House, Dwight Road, Watford, Herts., WD1 8EB., United Kingdom KENWOOD ELECTRONICS BELGUM N.V. Meachelsesteenweg 418, B-1930 Zaventem, Belgium KENWOOD ELECTRONICS DEUTSCHLAND GMBH Rembrücker Str.