Sony HCD-MD373 service manual MD Digital Loading Main

Page 89

Ref. No.

Part No.

Description

 

 

Remark

C358

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

C359

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

C360

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

C362

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C363

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

C503

1-126-206-11

ELECT CHIP

100uF

20%

6.3V

C509

1-126-206-11

ELECT CHIP

100uF

20%

6.3V

C510

1-126-206-11

ELECT CHIP

100uF

20%

6.3V

C522

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C527

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C528

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C529

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C2001

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

 

 

< CONNECTOR >

 

 

 

CN101

1-793-311-11 CONNECTOR,FFC(LIF(NON-ZIF))25P

 

CN102

1-784-687-41 PIN, CONNECTOR (PC BOARD) 7P

 

CN103

1-784-834-21 CONNECTOR,FFC(LIF(NON-ZIF))23P

 

CN104

1-784-833-21 CONNECTOR,FFC(LIF(NON-ZIF))21P

 

 

 

< IC >

 

 

 

IC153

8-759-481-19

IC LB1830M-S-TE-L

 

 

IC201

8-759-553-65

IC

UDA1341TS

 

 

 

IC202

8-759-564-53

IC

MC74HCU04ADTR2

 

 

IC316

8-759-643-90

IC

M30624MG-A13FP

 

 

 

 

< COIL >

 

 

 

L181

1-424-675-11

INDUCTOR

33uH

 

 

L201

1-500-445-21

FERRITE

0uH

 

 

L202

1-500-445-21

FERRITE

0uH

 

 

 

 

< TRANSISTOR >

 

 

 

Q350

8-729-028-99

TRANSISTOR

RT1N144M-TP-1

 

 

 

< RESISTOR >

 

 

 

R201

1-216-121-91

RES,CHIP

1M

5%

1/10W

R202

1-216-041-00

METAL CHIP

470

5%

1/10W

R203

1-216-049-91

RES,CHIP

1K

5%

1/10W

R204

1-216-089-91

RES,CHIP

47K

5%

1/10W

R205

1-216-113-00

METAL CHIP

470K

5%

1/10W

R207

1-216-025-91

RES,CHIP

100

5%

1/10W

R210

1-216-041-00

METAL CHIP

470

5%

1/10W

R330

1-216-073-00

METAL CHIP

10K

5%

1/10W

R331

1-216-097-91

RES,CHIP

100K

5%

1/10W

R333

1-216-073-00

METAL CHIP

10K

5%

1/10W

R349

1-216-073-00

METAL CHIP

10K

5%

1/10W

R351

1-216-057-00

METAL CHIP

2.2K

5%

1/10W

R352

1-216-053-00

METAL CHIP

1.5K

5%

1/10W

R353

1-216-053-00

METAL CHIP

1.5K

5%

1/10W

R358

1-216-073-00

METAL CHIP

10K

5%

1/10W

R361

1-216-073-00

METAL CHIP

10K

5%

1/10W

R363

1-216-073-00

METAL CHIP

10K

5%

1/10W

R366

1-216-097-91

RES,CHIP

100K

5%

1/10W

R367

1-216-097-91

RES,CHIP

100K

5%

1/10W

R370

1-216-073-00

METAL CHIP

10K

5%

1/10W

R383

1-216-073-00

METAL CHIP

10K

5%

1/10W

R384

1-216-073-00

METAL CHIP

10K

5%

1/10W

MD DIGITAL LOADING MAIN

Ref. No.

Part No.

Description

 

 

Remark

R385

1-216-073-00

METAL CHIP

10K

5%

1/10W

R386

1-216-073-00

METAL CHIP

10K

5%

1/10W

R391

1-216-073-00

METAL CHIP

10K

5%

1/10W

R395

1-216-073-00

METAL CHIP

10K

5%

1/10W

R400

1-216-073-00

METAL CHIP

10K

5%

1/10W

R816

1-216-174-00

RES,CHIP

100

5%

1/8W

R817

1-216-174-00

RES,CHIP

100

5%

1/8W

R818

1-216-174-00

RES,CHIP

100

5%

1/8W

R819

1-216-174-00

RES,CHIP

100

5%

1/8W

R2002

1-216-073-00

METAL CHIP

10K

5%

1/10W

R2004

1-216-041-00

METAL CHIP

470

5%

1/10W

R2005

1-216-025-91

RES,CHIP

100

5%

1/10W

R2006

1-216-025-91

RES,CHIP

100

5%

1/10W

R2007

1-216-025-91

RES,CHIP

100

5%

1/10W

R2008

1-216-073-00

METAL CHIP

10K

5%

1/10W

R2009

1-216-073-00

METAL CHIP

10K

5%

1/10W

 

 

< VIBRATOR >

 

 

 

X201

1-767-286-11

VIBRATOR, CRYSTAL (22MHz)

 

X302

1-781-155-21

VIBRATOR, CERAMIC (10MHz)

 

**************************************************************

 

1-674-336-11

LOADING BOARD

 

 

**************

 

 

< CONNECTOR >

* CN151

1-568-943-11

PIN, CONNECTOR 5P

 

 

< SWITCH >

S1

1-771-799-11

SWITCH, LEVER (SLIDE)

**************************************************************

A-4426-087-A MAIN BOARD, COMPLETE

********************

(AUS,AR,HK,MY,SP,KR,CH)

A-4426-080-A MAIN BOARD, COMPLETE (AEP,UK)

****************************

A-4426-756-A MAIN BOARD, COMPLETE (JE)

*************************

 

 

< CAPACITOR >

 

 

 

C101

1-162-282-31 CERAMIC

100PF

10%

50V

C102

1-162-294-31 CERAMIC

0.001uF

10%

50V

C103

1-126-964-11 ELECT

10uF

20%

50V

C121

1-126-933-11 ELECT

100uF

20%

16V

C131

1-164-159-11 CERAMIC

0.1uF

 

50V

C132

1-162-282-31 CERAMIC

100PF

10%

50V

C141

1-126-933-11 ELECT

100uF

20%

16V

C142

1-126-933-11 ELECT

100uF

20%

16V

C143

1-126-933-11 ELECT

100uF

20%

16V

C144

1-126-964-11 ELECT

10uF

20%

50V

C145

1-126-964-11

ELECT

10uF

20%

50V

C151

1-162-282-31

CERAMIC

100PF

10%

50V

C152

1-162-294-31

CERAMIC

0.001uF

10%

50V

C153

1-126-964-11

ELECT

10uF

20%

50V

89

Page 88 Page 90
Image 89
Page 88 Page 90
Contents 928-998-12 SpecificationsSELF-DIAGNOSIS Function Items of Error History Mode Items and Contents HK, SP, MY, AR, AUS, KR, JE Flexible Circuit Board RepairingAEP, UK Disassembly Table of ContentsDiagrams Exploded ViewsCleaning the Optical Pickup CD Player Drawing OUT the Tray During Power OFFSection Servicing Note Removing the Indication Plate FLService Position the Power Board Hot Reset Cold ResetLED and Fluorescent Indicator Tube All Lit, Key Check Mode Change-over of AM tuner Step between 9kHz and 10kHzError History Display Mode Aging ModeReading the BD Error History Display Reading the Mechanism Error History DisplayTEO JIG for Checking BD MD Board WaveformIOP Record Precedure Forced Reset Checks Prior to Parts Replacement and AdjustmentsREC/PLAY Main Board Component SideTuning +/MD/CD/TUNING + Retry Cause Display ModeHexadecimal nBinary Conversion Table Front Panel Section GeneralLocation of Parts and Controls Page Page Case Section DisassemblyBack Panel Front PanelCD Mechanism Deck Main Board and Power TransformerOptical PICK-UP Section of CD KSS-213BA/F-NP TRAY, Gear and CAMCD Base Unit MD Mechanism Deck BD CD BOARD, Spindle Motor M101 and Sled Motor M102Set the shaft of Cam gear to Spindle Motor M901 and Sled Motor M902 MD Over Write Head Optical PICK-UP of MD KMS-260B/J1NPrecautions for USE of Test Mode Section Test ModeSetting the Test Mode Exiting the Test ModeDisplay Contents Mark Group Selecting the Test ModeNon-Volatile Memory Mode EEP Mode Operating the Continuous Playback ModeMID OUTFunctions of Other Buttons Test Mode DisplaysMeanings of Other Displays MD Section Parts Replacement and Adjustment Section Electrical AdjustmentsPrecautions for USE of Optical PICK- UP KMS-260B Precautions for Checking Laser Diode EmissinonPrecautions for Adjustments Creating Continuously Recorded DiscLaser Power Check Temperature Compensation Offset CheckChecks Prior to Repairs Specified ValueCD Error Rate Check Play Checking MO Error Rate CheckFocus Bias Check Self-Recording/playback CheckTemperature Compensation Offset Adjutment Initial Setting of Adjustment ValueLaser Power Adjustment Recording and Displaying the IOP InformationCheck Traverse AdjustmentPress the ENTER/YES R button, display EFB = Focus Bias AdjustmentAuto Gain Control Output Level Adjustment Error Rate CheckCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentCD Section Adjusting Points and Connecting PointsCurve Check RF Level CheckCircuit Boards Location HCD-MD373 Section DiagramsHCD-MD373 Block Diagrams BD CD SectionREC BD MD /2D/A Converter BD CD Section Main SectionBD MD 1/2 Section Waveforms BD CD SectionBD MD 2/2 Section Main 3/3 SectionMain Board Printed Wiring Board BD CD SectionSee page 40 for Circuit Boards Location Schematic Diagram BD CD Section Semiconductor Location Printed Wiring Board BD MD SectionSchematic Diagram BD MD /2 MD Digital Board Schematic Diagram SP Section Printed Wiring Board SP Section Printed Wiring Board Main Section See page 68 for IC Block Diagrams Schematic Diagram Main /3HCD-MD373 HCD-MD373 See page 45 for Waveforms See page 67 for IC Block Diagrams Schematic Diagram MD Digital SectionPrinted Wiring Board MD Digital Section Schematic Diagram AMP Section Printed Wiring Board AMP Section Schematic Diagram Panel Section Printed Wiring Board Panel Section Schematic Diagram Power Section Except AEP, UK Voltage Selector Printed Wiring Board Power SectionAEP, UK Printed Wiring Board BD Switch Section Schematic Diagram BD Switch SectionSchematic Diagram Loading Section Printed Wiring Board Loading SectionBD MD Board 1/2 IC101 CXA2523AR IC Block DiagramsBD MD Board 2/2 IC121 CXD2654R IC152 BH6511FS-E2IC153 LB1830M-S-TE-L BD CD Board IC101 CXD2587QC103 CXA2568M-T6 MD Digital Board Main Board 2/3 IC301 M62428AFP IC931 M62016L Main Board 3/3 IC171 LB1641Main Board 1/3 IC302 MC14052B IC PIN Functions IC101 Digital Signal Processor CXD2587Q Bdcd boardAdio RfdcAVSS0 IgenIC101 RF Amplifier CXA2523AR Bdmd board MNT1 Shck MNT0 FOKMNT2 Xbusy MNT3 SlocAvdd MvciRFI AvssSprd FS4Spfd FginIC501 Master Control M30620ECFP-A21 Main board Stereo CD-RESETTuned ST-CECase and Front Panel Section Section Exploded Views59 #3 Chassis Section125 126 106 105 MD Mechanism Deck MDM-5A113 110 107 MD Base Unit MBU-5A CD Mechanism Deck CDM55A-5SBD32 255 256 257 253 254 CD Base Unit BU-5SBD32252 254 258 251CD Mechanism Deck CDM55C-5BD32 355 356 357 353 354 CD Base Unit BU-5BD32352 354 358 351Section Electrical Parts List AMP AMP BD CD BD CD BD MD Inductor Chip BD MD MD Digital2SJ278MYTR 2SK1764KYTR ResistorMD Digital Loading Main Main EP1 Ground TerminalTerminal BOARD, Ground EP2Description Remark R402 249-417-11 Panel Indicator TUBE, FluorescentPanel BOARD, Complete Jack LINE-INPanel Power TRANSFORMER, SUB Power Switch Voltage SelestorPIN, Connector 7P SWITCH, Push 1 KEYScrew +B Hardware ListSCREW,PRECISION +P Memo HCD-MD373 Revision History

HCD-MD373 specifications

The Sony HCD-MD373 is a compact mini audio system that offers an impressive blend of sound quality, versatility, and advanced technology, making it an ideal choice for audio enthusiasts and casual listeners alike. One of the standout features of the HCD-MD373 is its MiniDisc recorder/player, a legacy technology that allows users to record high-quality audio onto MiniDiscs, providing an alternative to traditional CDs and cassettes. This feature is particularly appealing for those looking to capture live music or create personalized playlists.

Another notable aspect of the HCD-MD373 is its integrated CD player, which supports a variety of formats including CD, CD-R, and CD-RW. This versatility means that users can enjoy their favorite albums without the hassle of switching devices. The audio system also includes a built-in AM/FM tuner, enabling users to easily tune into their favorite radio stations and enjoy live broadcasts.

The HCD-MD373 is equipped with a powerful amplifier that delivers impressive sound output, complemented by its two-way speaker system. The speakers provide a rich audio experience with clear highs and deep lows, making it suitable for various music genres, from classical to contemporary. The system also features a bass boost function that enhances low-frequency sounds, allowing for a more immersive listening experience.

In terms of connectivity, the HCD-MD373 offers multiple inputs and outputs, including audio line-in, headphone jacks, and a digital optical output. These features make it easy to connect external devices such as MP3 players, smartphones, or even home theater systems. Additionally, the audio system supports various playback options, including shuffle and repeat modes, providing enhanced flexibility for users.

The design of the HCD-MD373 is sleek and modern, with a compact form factor that allows it to fit seamlessly into any living space. Its user-friendly interface, complete with an LCD display, makes it easy to navigate and control playback settings. Overall, the Sony HCD-MD373 is a testament to Sony's commitment to quality audio experiences, combining innovative features, robust technology, and elegant design into a single, powerful audio system. Whether enjoying a quiet evening at home or hosting a gathering with friends, the HCD-MD373 is sure to deliver satisfying sound and performance.
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