Sony HCD-MD373 Bedienungsanleitung

1HCD-MD373SPECIFICATIONSSERVICE MANUALCOMPACT DISC DECK RECEIVER— Continued on next page —AEP ModelUK ModelE ModelAustralian ModelChinese ModelTourist

10• Reading the Mechanism Error History Display(To switch the history, press the PLAY MODE/TUNING MODE button.)Display E@@M**#*$*@@: Error number.

11JIG FOR CHECKING BD (MD) BOARD WAVEFORMThe special jig (J-2501-149-A) is useful for checking the waveform of the BD (MD) board. The names of termina

12IOP DATA RECORDING AND DISPLAY WHEN OPTICAL PICK-UP AND NON-VOLATILE MEMORY (IC171 OFBD (MD) BOARD) ARE REPLACEDThe IOP value labeled on the optical

13• 0.9 mW powerSpecified value : 0.84 to 0.92 mW• 7.0 mW powerSpecified value : 6.8 to 7.2 mWlop (at 7mW)• Labeled on the optical pickupIop value ± 1

14RETRY CAUSE DISPLAY MODE• In this test mode, the causes for retry of the unit during recording can be displayed on the fluorescent indicator tube. D

15HexadecimalBitBinaryHigher Bits Lower Bits84218421b7 b6 b5 b4 b3 b2 b1 b00000000100000010000001000000100000010000001000000100000010000000Hexa-decima

16LOCATION OF PARTS AND CONTROLS1 1/u (power) switch2 MD slot3 6 (Eject) (MD) button4 MD indicator5 (P (MD) button6 p (MD) button7 VOLUME (CD) knob8 (

17This section is extracted frominstruction manual.

18

19SECTION 3DISASSEMBLYNote: Follow the disassembly procedure in the numerical order given.3-1. CASENote: Follow the disassembly procedure in the numer

2SELF-DIAGNOSIS FUNCTIONThe self-diagnosis function consists of error codes for customers which are displayed automatically when errors occur, and err

203-3. BACK PANEL3-2. FRONT PANEL1 Flat type wire (25 core)5 Screw (BVTT 3x10)6 Screw (BVTT 3x6)8 Screw (BVTT 3x6)9 Screw (BVTT 3x

213-4. MAIN BOARD AND POWER TRANSFORMERMain boardSP boardPower boardAmp board(CN801)1 Flat type wire (19 core)2 Flat type wire (15 core)7 Scre

223-6. TRAY, GEAR AND CAM4 Belt (CDM55)6 Pulley (LDG)9 Gear (A)8 Gear (B)7 Roller2 Push the claw in tne direction of arrow C.0 Cam (CDM55)3 Pull o

233-9. BD (CD) BOARD, SPINDLE MOTOR (M101) AND SLED MOTOR (M102)IC102IC101M101M102IC1032 Remove the four solders.1 Screw (BVTP 2.6x8)!¡ Spindle m

243-12. BASE UNIT (MBU-5A) AND BD (MD) BOARD• Note for installation of Slider (CAM)Set the shaft of Cam gear tobe at the position in the figure.Set th

253-13. OVER WRITE HEAD1 Flexible board2 Screw (P 1.7x6)3 Over write head (HR901)3-14. OPTICAL PICK-UP OF MD (KMS-260B/J1N)1 Screw (B 2x8)3 Main s

26SECTION 4TEST MODE4-1. PRECAUTIONS FOR USE OF TEST MODE• As loading related operations will be performed regardless of the test mode operations bei

274-5. SELECTING THE TEST MODEThere are 31 types of test modes as shown below. The groups can be switched by pressing the =0/MD/CD/TUNING – button o

28“CPLAY MID” n “CPLAY OUT” n “CPLAY IN” 4-5-1. Operating the Continuous Playback Mode1. Entering the continuous playback mode1 Set the disc in the u

294-6. FUNCTIONS OF OTHER BUTTONSContentsSets continuous playback when pressed in the STOP state. When pressed during continuous playback, the trackin

3ITEMS OF ERROR HISTORY MODE ITEMS AND CONTENTSSelecting the Test ModeDisplaytotal rectotal playretry errtotal errerr historyer refreshtm refreshDetai

30( (MD) *P (MD) *r REC *SYNCLEVEL-SYNCOVER1REPEATTRACKDISCSHUFFLEMONOWhen OffContentsDisplayWhen LitDuring continuous playback (CLV: ON)Tracking serv

31 MD SECTION5-1. PARTS REPLACEMENT AND ADJUSTMENT• Check and adjust the MDM and MBU as follows.The procedure changes according to the part replacedSE

325-2. PRECAUTIONS FOR CHECKING LASER DIODEEMISSINONTo check the emission of the laser diode during adjustments, neverview directly from the top as th

335-6. CHECKS PRIOR TO REPAIRSThese checks are performed before replacing parts according to“approximate specifications” to determine the faulty locat

349. Press the ENTER/YES “R” button display “EFB = MO-P”.Then, the optical pick-up moves to the pit area automaticallyand servo is imposed.10. Obs

358. “C1 = AD = ” will be displayed.9. Check that the C1 error becomes below 80 and the AD errorbelow 2.10. Press the MENU/NO “R” button to stop

36KMS260A27X40B0825NIop = 82.5 mA in this caseIop (mA) = Digital voltmeter reading (mV)/1 (Ω)5. Then “LD 7.0 mW $ ” will be displayed.6. Press the =

379. Press the ENTER/YES “R” button, and save the adjustmentresults in the non-volatile memory. (“EFB = SAVE” will bedisplayed for a moment.)10. “

385-13. ERROR RATE CHECK5-13-1. CD Error Rate CheckChecking Procedure :1. Load a check disc (MD) TDYS-1.2. Press the =0/MD/CD/TUNING – button or )+

39 39NOTE:It is useful to use the jig. for checking the waveform. (Referto Servicing Note on page 11.)[BD (MD) BOARD] (SIDE B)CN110NOTED101I+3VIOPTEVC

4CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardous ra-diation exposure.MODEL

HCD-MD3734040SECTION 6DIAGRAMS6-1. CIRCUIT BOARDS LOCATIONTUNER UNIT is suppliedas the assembled block.SP boardAmp boardPower boardMD digital boardPa

HCD-MD37341 416-2. BLOCK DIAGRAMS– BD (CD) SECTION –EFABCDACRFFFTEDBEFLDPDVCCVCRFSUMMINGAMPFOCUSERRORAMPTRACKINGERRORAMPLDDRIVEQ101VCBUFFERINTEG-RATOR

HCD-MD3734242– BD (MD) SECTION (1/2) –HR901OVER WRITEHEADHEADDRIVEQ181,1823612FILTERPCOFILIFILOCLTVPLLEFM,ACIRC,ENCODER/DECODERRF AGC & EQAGCIRFOM

HCD-MD37343 43– BD (MD) SECTION (2/2) –2773721716181219422614132415807975788281353736586366535159577460546567885655778769222115131218ADDTBCKLRCKDADT51

HCD-MD3734444– MAIN SECTION –BUFFERQ401MUXRDATA RCLKX1X0X4014.332 MHzRDS DECODERIC401X4014.332 MHzAEP, UKSTEREOTUNEDDODICLKCEMUTE505154535552496910BSE

HCD-MD37345 45• Indication of transistorTHIS NOTE IS COMMON FOR PRINTED WIRINGBOARDS AND SCHEMATIC DIAGRAMS.(In addition to this, the necessary note i

HCD-MD37346 466-3. PRINTED WIRING BOARD – BD (CD) SECTION –• See page 40 for Circuit Boards Location.(Page 52)MAIN BOARDTP(VC)TP(RF)TP(AGC CON)TP(FE)T

HCD-MD37347 476-4. SCHEMATIC DIAGRAM – BD (CD) SECTION –• See page 45 for Waveforms.• See page 67 for IC Block Diagrams.• See page 69 for IC Pin Funct

HCD-MD37348 486-5. PRINTED WIRING BOARD – BD (MD) SECTION –• See page 40 for Circuit Boards Location.IC101 A-3IC121 C-3IC124 C-3IC152 B-1IC181 C-1IC19

HCD-MD37349 49(Page 50)(Page 50)(Page 50)(Page 50)(Page 50) (Page 50)(Page 50)6-6. SCHEMATIC DIAGRAM – BD (MD) SECTION (1/2) –• See page 45 for Wavefo

51. SERVICING NOTE ... 62. GENERAL ...

HCD-MD37350 506-7. SCHEMATIC DIAGRAM – BD (MD) SECTION (2/2) –• See page 45 for Waveforms.• See page 48 for Printed Wiring Board.• See page 66 for IC

HCD-MD37351 516-9. PRINTED WIRING BOARD – SP SECTION –• See page 40 for Circuit Boards Location.6-8. SCHEMATIC DIAGRAM – SP SECTION –(Page 59)(Page 52

HCD-MD37352 526-10. PRINTED WIRING BOARD – MAIN SECTION –• See page 40 for Circuit Boards Location.Ref. No. Location• Semiconductor LocationD171 E-2D3

HCD-MD37353 536-11. SCHEMATIC DIAGRAM – MAIN SECTION (1/3) –• See page 68 for IC Block Diagrams.(Page 55) (Page 54) (Page 54) (Page 55) (Page 54)(Page

HCD-MD37354 546-12. SCHEMATIC DIAGRAM – MAIN SECTION (2/3) –• See page 52 for Printed Wiring Board.• See page 68 for IC Block Diagrams.(Page 62)(Page

HCD-MD37355 556-13. SCHEMATIC DIAGRAM – MAIN SECTION (3/3) –• See page 45 for Waveforms.• See page 52 for Printed Wiring Board.• See page 68 for IC Bl

HCD-MD37356 566-14. SCHEMATIC DIAGRAM – MD DIGITAL SECTION –• See page 45 for Waveforms.• See page 67 for IC Block Diagrams.(Page 54)(Page 64) (Page 5

HCD-MD37357 576-15. PRINTED WIRING BOARD – MD DIGITAL SECTION –• See page 40 for Circuit Boards Location.(Page 48)(Page 48)(Page 64)(Page 52)

HCD-MD37358 586-16. SCHEMATIC DIAGRAM – AMP SECTION –(Page 51)(Page 62)

HCD-MD37359 596-17. PRINTED WIRING BOARD – AMP SECTION –• See page 40 for Circuit Boards Location.(Page 51)(Page 63)

6SECTION 1SERVICING NOTETray (CDM)Move the Cam block in the directionof arrow with a finger.4 Panel board2 Nut1 Knob (VOL)5 Ring (VOL) (Remove the

HCD-MD37360 606-18. SCHEMATIC DIAGRAM – PANEL SECTION –(Page 55)

HCD-MD37361 616-19. PRINTED WIRING BOARD – PANEL SECTION –• See page 40 for Circuit Boards Location.Ref. No. Location• Semiconductor LocationD602 A-2D

HCD-MD37362 626-20. SCHEMATIC DIAGRAM – POWER SECTION –(Page 58)(Page 54)

HCD-MD37363 636-21. PRINTED WIRING BOARD – POWER SECTION –• See page 40 for Circuit Boards Location.Ref. No. Location• Semiconductor LocationD971 B-3D

HCD-MD37364 646-22. SCHEMATIC DIAGRAM – BD SWITCH SECTION –6-23. PRINTED WIRING BOARD – BD SWITCH SECTION –• See page 40 for Circuit Boards Location.

656-26. IC BLOCK DIAGRAMS• BD (MD) Board (1/2)IC101 CXA2523AR–1–2+–IVRBB+–IVRAA+–IVRCC+–IVRDD+–IVR+–EEEE'EFB TESWPTGR48MORFO47MORFI46RFO45OPN44O

6632 31 30 29 28 27 26 25 24 23 22 21 20 19 18 171 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16GNDVGIN4RIN4FVM4OUT4FPGND4OUT4RVM34OUT3RPGND3OUT3FVM3IN3FIN3RPS

67• BD (CD) BoardIC101 CXD2587QTERFDCCEIGEN AVSS0 ADIO AVDD0CLTVFILOAVSS3VSSAVDD3DOUTVDDPCOFILIASYOASYIRFACBIASSSTPDFCTMIRRMDPLOCKFOKSFDRVSSTESTFRDRF

6812 345 6 7 8 9 10GNDMOTORDRIVENOISEFILTERCLAMPFWD.INREV.INVCC 1VCC 2NOISEFILTERMOTORDRIVEMOTORDRIVEMOTORDRIVET.S.D O.C.PFWD/REV/STOPCONTROL LOGIC123

696-27. IC PIN FUNCTIONS• IC101 DIGITAL SIGNAL PROCESSOR (CXD2587Q) (BD(CD) board)SQSOSQCKXRSTSYSMDATAXLATCLOKSENSSCLKVDDATSKSPOASPOBXLONWFCKXUGFXPCKG

7MD mechanism deckCD mechanism deckMain boardPower boardAmp boardCN802Extension cable (4P)(J-2501-042-A)Extension cable (3P)(J-2501-045-A)CN993SERVICE

70• AbbreviationEFM : Eight to Fourteen ModulationPLL : Phase Locked LoopPin No. Pin NameI/O FunctionTECERFDCADIOAVSS0IGENAVDD0ASYOASYIBIASRFACAVSS3CL

71• IC101 RF Amplifier (CXA2523AR) (BD(MD) board)Pin No.Pin Name I/OFunctionIJVCA to FPDAPCAPCREFGNDTEMPITEMPRSWDTSCLKXLATXSTBYF0CNTVREFEQADJ3TADJVccW

7212345678910111213141516171819202122232425262728293031 to 343536 to 4041424344454647• IC121 Digital Signal Processor, Digital Servo Signal Processor,

73FunctionPin No.Pin Name I/O484950, 5152535455565758596061626364656667686970717273747576777879808182838485D1D0D2, D3MVCIASYOASYIAVDDBIASRFIAVSSPCOFIL

74FunctionPin No.Pin Name I/O8687888990919293949596 to 9899100TFDRDVDDFFDRFRDRFS4SRDRSFDRSPRDSPFDFGINTEST1 to TEST3DVSSEFMOO—OOOOOOOI (S)I—OTracking s

75• IC501 MASTER CONTROL (M30620ECFP-A21) (MAIN board)Pin No.Pin Name I/O Function1 STK-POWER O Power amp ON/OFF signal output2 P O Power ON/OFF signa

76Pin No.Pin NameI/O Function50 STEREO I Stereo signal input from the tuner51 TUNED I Tuned signal input from the tuner52 ST-CE O Tuner chip enable ou

77SECTION 7EXPLODED VIEWS7-1. CASE AND FRONT PANEL SECTIONNOTE:• Items marked “*” are not stocked since they areseldom required for routine service.

787-2. CHASSIS SECTIONRef. No. Part No. Description Remark Ref. No. Part No. Description Remark51 A-4426-076-A AMP BOARD, COMPLETE52 A-4426-081-A POWE

797-3. MD MECHANISM DECK (MDM-5A)Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark* 101 1-668-111-11 SW BOARD* 102 4-996-217-0

8Cold Reset• The cold reset clears all data inculuding preset data stored in the RAM to initial conditions. Execute this mode when returning the set

807-4. MD BASE UNIT (MBU-5A)Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark* 151 A-4699-893-A BD (MD) BOARD, COMPLETE152 3-3

817-5. CD MECHANISM DECK (CDM55A-5SBD32)Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark201 4-925-315-31 DAMPER202 1-674-336-

827-6. CD BASE UNIT (BU-5SBD32)Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark251 4-951-620-01 SCREW (2.6X8), +BVTP* 252 A-4

837-7. CD MECHANISM DECK (CDM55C-5BD32)Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark30130230330430530630730830931031131331

847-8. CD BASE UNIT (BU-5BD32)Ref. No. Ref. No.351* 352353354!355356357358M101M102The components identified by mark ! or dottedline with mark ! are cr

85• CAPACITORSuF : µ F• COILSuH : µ H• AbbreviationHK : Hong Kong modelSP : Singapore modelMY : Malaysia modelAR : Argentine modelAUS : Australian mod

86Ref. No. Part No. Description Remark Ref. No. Part No. Description RemarkR853 1-249-437-11 CARBON 47K 5% 1/4WR854 1-249-437-11 CARBON 47K 5% 1/4WR85

87Ref. No. Part No. Description Remark Ref. No. Part No. Description RemarkR158 1-216-111-00 METAL CHIP 390K 5% 1/10WR159 1-216-101-00 METAL CHIP 150K

88Ref. No. Part No. Description Remark Ref. No. Part No. Description RemarkL106 1-414-813-11 FERRITE 0uHL121 1-414-813-11 FERRITE 0uHL122 1-414-813-11

89Ref. No. Part No. Description Remark Ref. No. Part No. Description RemarkC358 1-163-251-11 CERAMIC CHIP 100PF 5% 50VC359 1-163-251-11 CERAMIC CHIP 1

9Aging Mode• Mode for repeating operations of the CD player automatically.When errors occur:Aging stops and a message indicating that an error has occ

90Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkC161 1-126-933-11 ELECT 100uF 20% 16VC166 1-162-282-31 CERAMIC 100PF 10% 50V

91Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkMAIND922 8-719-911-19 DIODE 1SS133T-72D923 8-719-911-19 DIODE 1SS133T-72

92Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkMAINR402 1-249-417-11 CARBON 1K 5% 1/4W F(AEP,UK)R403 1-249-429-11 CARBON 10

93Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkA-4426-073-A PANEL BOARD, COMPLETE*********************** 1-690-880-31 LEAD

94Ref. No. Part No. Description RemarkRef. No. Part No. Description RemarkR651 1-249-429-11 CARBON 10K 5% 1/4WR652 1-249-435-11 CARBON 33K 5% 1/4WR681

95Ref. No. Part No. Description Remark Ref. No. Part No. Description RemarkPOWER SPSWThe components identified by mark ! or dottedline with mark ! are

96Ref. No. Part No. Description RemarkHCD-MD373*************HARDWARE LIST*************#1 7-685-647-79 SCREW +BVTP 3X10 TYPE2 TT(B)#2 7-685-650-91 SCRE

HCD-MD37397MEMO

HCD-MD373REVISION HISTORYClicking the version allows you to jump to the revised page.Also, clicking the version at the upper right on the revised pag