Marantz 74 CD7 Service Manual
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Marantz 74 CD7 Service Manual

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Service
Manual
SECTION
1.
TECHNICAL SPECIFICATIONS ............................................................................................................... 1
2.
SERVICING HINTS .................................................................................................................................... 2
3.
SERVICINE TOOLS ................................................................................................................................... 2
4.
SERVICE MODE ......................................................................................................................................... 3
5.
MICROPROCESSOR AND IC DATA ....................................................................................................... 4
6.
WIRING DIAGRAM ..................................................................................................................................... 7
7.
BLOCK DIAGRAM ...................................................................................................................................... 9
8.
FLAG NO. .................................................................................................................................................. 10
9.
SCHEMATIC DIAGRAM AND PARTS LOCATIONS .......................................................................... 11
10.
EXPLODED VIEW AND MECHANISM PARTS LIST .......................................................................... 27
11.
TRAY MECHANISM ADJUSTMENTS ................................................................................................... 33
12.
BALANCED JACKS ................................................................................................................................. 37
13.
DIGITAL FILTER ...................................................................................................................................... 38
14.
EXPLANATION OF DSP ......................................................................................................................... 39
15.
ELECTRICAL PARTS LIST .................................................................................................................... 41
Please use this service manual with referring to the user guide ( D.F.U. ) without fail.
修理の際は、必ず取扱説明書を準備し操作方法を確認の上作業を行ってください。
Printed in Japan

TABLE OF CONTENTS

model CD-7
74 CD7 /
CD-7 F
Compact disc player
02G
K
N
GL
PAGE
R
4822 725 51186
First Issue 1999.03
355K855010
MIT

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  • Page 1: Table Of Contents

    74 CD7 / Service CD-7 F Manual Compact disc player TABLE OF CONTENTS SECTION PAGE TECHNICAL SPECIFICATIONS ....................... 1 SERVICING HINTS ............................ 2 SERVICINE TOOLS ........................... 2 SERVICE MODE ............................3 MICROPROCESSOR AND IC DATA ....................... 4 WIRING DIAGRAM ............................. 7 BLOCK DIAGRAM ............................
  • Page 2 MARANTZ Parts for your equipment are generally available to our National Marantz Subsidiary or Agent. ORDERING PARTS : Parts can be ordered either by mail or by Fax.. In both cases, the correct part number has to be specified.

  • Page 3: Technical Specifications

    1. TECHNICAL SPECIFICATIONS Audio Characteristics オーディオ特性 オーディオ特性 オーディオ特性 オーディオ特性 オーディオ特性 Channels ............2 channels チャンネル ......2チャンネル 周波数特性 ....2Hz∼20,000Hz, +0 -1.2dB Sampling frequency (CD mode) ......44.1 kHz Sampling frequency (D/A mode) ..... 32/44.1/48 kHz ダイナミックレンジ ......98dB以上 S/N比 ......... 102dB Quantization ........

  • Page 4: Servicing Hints

    2. SERVICING HINTS 3. SERVICE TOOLS Audio signals disc 4822 397 30184 Disc without errors (SBC444)+ Disc with DO errors, black spots and fingerprints (SBC444A) 4822 397 30245 Disc (65 min 1kHz) without no pause 4822 397 30155 Max. diameter disc (58.0 mm) 4822 397 60141 Torx screwdrivers Set (straight)

  • Page 5: Service Mode

    4. SERVICE MODE 4. 4. 4. 4. 4. サービスモード サービスモード サービスモード サービスモード サービスモード 1. How to enter into the Service Mode 1. サービスモードへの入り方 Turn the power on while pressing [PLAY]+[OPEN/ [PLAY]と[OPEN/CLOSE] ボタンを押しながら電源を入れま CLOSE] buttons together. す。 2. Mode 0 (display “P 00”) 2.

  • Page 6: Microprocessor And Ic Data

    5. MICROPROCESSOR AND IC DATA Q102 : SAA7372GP 7000 : TDA1302T SYMBOL DESCRIPTION SYMBOL DESCRIPTION VSSA1 *analog ground 1 output of diode current amplifier 4 VDDA1 * analog supply voltage 1 output of diode current amplifier 6 unipolar current input (central diode signal input) output of diode current amplifier 3 unipolar current input (central diode signal input) output of diode current amplifier 1...
  • Page 7 QF01 : µ : µ : µ : µ : µPD78076 MAIN Q304 : TDA1315H Q507/Q509 : DSP56004 16-Bit Bus SYMBOL PADCELL DESCRIPTION Pin No. Port Name Function In/Out Active To/From Description 24-Bit Bus E029 PLL loop filter input STRB P120 High Q304...

  • Page 8: Wiring Diagram

    6. WIRING DIAGRAM...

  • Page 9: Block Diagram

    8. FLAG No. 7. BLOCK DIAGRAM No. Flag Name Function MT-OUT Motor Drive Output HF-OUT TDA1302T HF si gnal output HF-HPF HF Signal HPF Output LDON Laser Diode Control Signal Q102 SAA7372GP Radial Motor Control Signal(PDM) Focus Motor Control Signal(PDM) Q103 Slegde Motor Control Signal(PDM) DIGO...

  • Page 10: Schematic Diagram And Parts Locations

    9. SCHEMATIC DIAGRAM AND PARTS LOCATION...
  • Page 15 PP16 Q326 Q504 Q507 Q509 Q322 Q332 Q333 Q304 Q503 Q330 Q328 Q311 Q505 Q317 Q324 Q325 Q308 Q502 Q320 Q316 Q512 Q303 Q301 Q327 Q501 Q510 Q318 Q331 Q323 Q306 Q506 Q508 Q321 Q305 Q306 Q315 Q329 Q319 Q513 Q856 Q855 Q857 Q853 Q851 Q852 Q812 Q813 Q811 Q802...
  • Page 16 Q777 Q776 Q775 Q773 Q774 Q772 Q477 Q476 Q475 Q473 Q474 Q427 Q471 PA16 QD51 Q757 Q756 Q755 Q753 Q754 Q752 QD53 QD80 QD79 QD78 QD76 QD77 QD75 QD74 QD52 Q638 Q636 Q634 Q635 Q633 Q631 QD60 QD59 QD58 QD56 QD57 QD55 QD54 Q637 QD01 Q457 Q456 Q455 Q453Q454 Q452 Q451...
  • Page 17 PY16 PV16 QM01 ~ QM12 Q112 Q106 ~ Q111 Q102 QF02 QY01 QY02 QY04 QY03 QY07 ~ QY10 QF01 QF03 Q103 Q104 QF06 QF05 QF04 QF07 QF08 PH16 PY26...
  • Page 18 9 0 9 Gx 3 W 0 0 1 ( F ) VERSIO N 10. EXPLODED VIEW AND PARTS LIST K VERSI O N (/02) VERSI O N J 0 0 1 9 0 1 G 9 0 1 G 0 0 1 D 0 1 2 D 0 1 0 D...
  • Page 19 4822 736 16822 USER GUIDE 355K851310 PIECE RIGHT GLD 007B 4822 454 13454 BADGE, META-LETTER 208J251010 Z003 4822 219 10702 REMOTE COMMANDER, ZK355K0010 MARANTZ SILVER RC-D7CD 010B 4822 463 11251 BUSHING, POWER BUTTON 355K259040 013B 4822 492 71359 SPRING, RETAINER BUTTON 270K115030 GROUND...
  • Page 20 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) A001 4822 691 10787 LOADER ASSY VAM1252 355K304520 155M 4822 441 12323 CASE, TRAY BLK 167K064140 157M...
  • Page 21 0 7 9 M 0 8 9 M 0 9 0 M 0 9 2 M 0 9 3 M 1 2 4 M 1 4 4 M 1 2 3 M 1 0 1 M 0 7 8 M 1 0 0 M 0 8 6 M 1 5 5 M...

  • Page 22: Tray Mechanism Adjustments

    11. TRAY MECHANISM ADJUSTMENTS 2.When the tray Is disengaged to the lower side 3.When replacing the sub-chassis (VAM1252) 1. When mounting tray and tray case 4.Others (when replacing tray case because of damage etc.) a) The height of the sub-chassis turn table is different one by a) For the loading wire winding, refer to the figure be-low.
  • Page 23 11. ト ト ト ト ト レ レ レ レ レ ー ー ー ー ー メ メ メ メ メ カ カ カ カ カ ニ ニ ニ ニ ニ ズ ズ ズ ズ ズ ム ム ム ム ム の の の の の 調 調 調 調 調 整 整 整 整 整 2.

  • Page 24: Balanced Jacks

    12. BALANCED JACKS 12. BALANCED 12. BALANCED 12. BALANCED 端 端 端 端 端 子 子 子 子 子 に に に に に つ つ つ つ つ い い い い い て て て て て 12. BALANCED 12.

  • Page 25: Explanation Of Dsp

    14. DSP 14. DSP 14. DSP の説明 14. DSP 14. DSP の説明 の説明 の説明 の説明 14. EXPLANATION OF DSP Table 1 DSP56004によるデジタル処理は以下2ブロック構成になっていま The digital processing for DSP-1/DSP-2 (DSP56004) is the す。 following compositions. 44kHz 44.1kHz 44.1kHz 1.DSP1(Q507) 48kHz 44.1kHz 1. DSP-1 (Q507) ●ミュート機能(コサインカーブによる...

  • Page 26: Electrical Parts List

    (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) 15. ELECTRICAL PARTS LIST NOTE ON SAFETY FOR FUSIBLE RESISTOR : ASSIGNMENT OF COMMON PARTS CODES. POS. VERS. PART NO. POS. VERS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR (FOR PCS) COLOR (FOR PCS)
  • Page 27 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) 100Ω ±5% 1/10W CHIP NI05101110 100Ω ±5% 1/10W CHIP NI05101110 RD33 4822 111 90893 R459...
  • Page 28 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) 100Ω ±5% 1/10W CHIP NI05101110 10kΩ ±1% 1/4W R713 4822 111 90893 R789 GM11410020...
  • Page 29 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) QD57 4822 130 63928 CHIP TRS. 2SA1312 B HX113121B0 Q727 4822 130 62649 F.E.T.
  • Page 30 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) 4822 124 41539 ELECT 47 µF ±20% 16V C309 OA47601620 PP16-RESISTORS CHIP 5322 126 11578 CER.
  • Page 31 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) 22kΩ ±5% 1/16W R339 4822 051 30223 NN05223610 D301 4822 130 83715 CHIP DIODE DAN202U HZ21005000 22kΩ...
  • Page 32 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) Q503 4822 209 17432 IC 74HC595 HC759500R0 S301 4822 277 21559 SLIDE SW. COAX OPT SEL SS02021150 Q504 4822 209 30426 IC...
  • Page 33 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. VERS. POS. PART NO. POS. PART NO. PART NO. PART NO. DESCRIPTION DESCRIPTION COLOR COLOR (FOR PCS) (FOR PCS) (MJI) (MJI) 3.3kΩ ±5% 1/16W RF14 R166 4822 051 30332 NN05332610 22kΩ...
  • Page 34 (VERS. :VERSION, U:U.S.A., F:JAPAN, K:FAR EAST, / ** :EUROPE) VERS. POS. PART NO. PART NO. DESCRIPTION COLOR (FOR PCS) (MJI) PY26-FRONT TACT SW CIRCUIT BOARD PY26-CAPACITORS CY12 4822 126 11687 CER. 0.1µF +80%-20% CHIP DK98104200 CY13 4822 126 11687 CER. 0.1µF +80%-20% CHIP DK98104200 CY14 4822 126 12061 CER.

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