Sony HCD-MD373 service manual BD MD MD Digital, Inductor Chip, 2SJ278MYTR, 2SK1764KYTR Resistor

Page 88

BD (MD)

 

MD DIGITAL

 

 

 

 

 

 

 

 

 

 

 

 

Ref. No.

Part No.

 

Description

 

 

 

Remark

L106

1-414-813-11 FERRITE

0uH

 

 

L121

1-414-813-11 FERRITE

0uH

 

 

L122

1-414-813-11 FERRITE

0uH

 

 

L151

1-412-029-11

INDUCTOR CHIP

10uH

 

 

L152

1-412-029-11

INDUCTOR CHIP

10uH

 

 

L153

1-412-032-11

INDUCTOR CHIP

100uH

 

 

L154

1-412-032-11

INDUCTOR CHIP

100uH

 

 

L161

1-414-813-11 FERRITE

0uH

 

 

L162

1-414-813-11 FERRITE

0uH

 

 

L181

1-216-295-91 SHORT

0

 

 

 

 

 

 

 

< TRANSISTOR >

 

 

 

 

Q101

8-729-403-35 TRANSISTOR

UN5113-TX

 

 

Q102

8-729-026-53 TRANSISTOR

2SA1576A-T106-QR

 

Q103

8-729-402-93 TRANSISTOR

UN5214-TX

 

 

Q104

8-729-402-93 TRANSISTOR

UN5214-TX

 

 

Q162

8-729-101-07 TRANSISTOR

2SB798-T1DK

 

Q163

8-729-403-35 TRANSISTOR

UN5113-TX

 

 

Q181

8-729-018-75 TRANSISTOR

2SJ278MYTR

 

Q182

8-729-017-65 TRANSISTOR

2SK1764KYTR

 

 

 

 

 

< RESISTOR >

 

 

 

 

R103

1-216-049-91 RES,CHIP

1K

5%

1/10W

R104

1-216-073-00

METAL CHIP

10K

5%

1/10W

R105

1-216-065-91 RES,CHIP

4.7K

5%

1/10W

R106

1-216-133-00

METAL CHIP

3.3M

5%

1/10W

R107

1-216-113-00

METAL CHIP

470K

5%

1/10W

R109

1-216-295-91 SHORT

0

 

 

 

R110

1-216-073-00

METAL CHIP

10K

5%

1/10W

R111

1-216-295-91 SHORT

0

 

 

 

R112

1-216-089-91 RES,CHIP

47K

5%

1/10W

R113

1-216-049-91 RES,CHIP

1K

5%

1/10W

R115

1-216-049-91 RES,CHIP

1K

5%

1/10W

R117

1-216-113-00

METAL CHIP

470K

5%

1/10W

R120

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R121

1-216-097-91 RES,CHIP

100K

5%

1/10W

R123

1-216-295-91 SHORT

0

 

 

 

R124

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R125

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R127

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R129

1-216-295-91 SHORT

0

 

 

 

R130

1-216-295-91 SHORT

0

 

 

 

R131

1-216-073-00

METAL CHIP

10K

5%

1/10W

R132

1-216-097-91 RES,CHIP

100K

5%

1/10W

R133

1-216-117-00

METAL CHIP

680K

5%

1/10W

R134

1-216-049-91 RES,CHIP

1K

5%

1/10W

R135

1-216-061-00

METAL CHIP

3.3K

5%

1/10W

R136

1-216-049-91 RES,CHIP

1K

5%

1/10W

R137

1-216-295-91 SHORT

0

 

 

 

R140

1-216-029-00

METAL CHIP

150

 

5%

1/10W

R142

1-216-073-00

METAL CHIP

10K

5%

1/10W

R143

1-216-073-00

METAL CHIP

10K

5%

1/10W

R144

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R145

1-216-073-00

METAL CHIP

10K

5%

1/10W

R146

1-216-037-00

METAL CHIP

330

 

5%

1/10W

R147

1-216-025-91 RES,CHIP

100

 

5%

1/10W

R148

1-216-045-00

METAL CHIP

680

 

5%

1/10W

Ref. No.

Part No.

Description

 

 

Remark

R149

1-216-073-00

METAL CHIP

10K

5%

1/10W

R150

1-216-295-91 SHORT

0

 

 

R151

1-216-073-00

METAL CHIP

10K

5%

1/10W

R152

1-216-073-00

METAL CHIP

10K

5%

1/10W

R158

1-216-097-91 RES,CHIP

100K

5%

1/10W

R159

1-216-097-91 RES,CHIP

100K

5%

1/10W

R160

1-216-295-91 SHORT

0

 

 

R161

1-216-057-00

METAL CHIP

2.2K

5%

1/10W

R162

1-216-057-00

METAL CHIP

2.2K

5%

1/10W

R163

1-216-057-00

METAL CHIP

2.2K

5%

1/10W

R164

1-216-045-00

METAL CHIP

680

5%

1/10W

R165

1-216-097-91 RES,CHIP

100K

5%

1/10W

R167

1-216-065-91 RES,CHIP

4.7K

5%

1/10W

R169

1-219-724-11

METAL CHIP

1

1%

1/4W

R170

1-216-073-00

METAL CHIP

10K

5%

1/10W

R171

1-216-073-00

METAL CHIP

10K

5%

1/10W

R173

1-216-121-91 RES,CHIP

1M

5%

1/10W

R175

1-216-065-91 RES,CHIP

4.7K

5%

1/10W

R177

1-216-061-00

METAL CHIP

3.3K

5%

1/10W

R179

1-216-085-00

METAL CHIP

33K

5%

1/10W

R180

1-216-073-00

METAL CHIP

10K

5%

1/10W

R182

1-216-089-91 RES,CHIP

47K

5%

1/10W

R183

1-216-089-91 RES,CHIP

47K

5%

1/10W

R184

1-216-073-00

METAL CHIP

10K

5%

1/10W

R185

1-216-081-00

METAL CHIP

22K

5%

1/10W

R186

1-216-089-91 RES,CHIP

47K

5%

1/10W

R188

1-216-073-00

METAL CHIP

10K

5%

1/10W

R189

1-216-073-00

METAL CHIP

10K

5%

1/10W

R190

1-216-073-00

METAL CHIP

10K

5%

1/10W

R195

1-216-073-00

METAL CHIP

10K

5%

1/10W

R196

1-216-295-91 SHORT

0

 

 

R197

1-216-295-91 SHORT

0

 

 

R198

1-216-296-91 SHORT

0

 

 

 

 

< SWITCH >

 

 

 

S101

1-762-596-21 SWITCH, PUSH (1 KEY)

 

 

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

*A-4426-083-A MD DIGITAL BOARD, COMPLETE

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

 

 

< CAPACITOR >

 

 

 

C171

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C172

1-126-206-11

ELECT CHIP

100uF

20%

6.3V

C201

1-163-234-11

CERAMIC CHIP

20PF

5%

50V

C202

1-163-229-11

CERAMIC CHIP

12PF

5%

50V

C203

1-163-021-91

CERAMIC CHIP

0.01uF

10%

50V

C216

1-126-205-11

ELECT CHIP

47uF

20%

6.3V

C341

1-126-205-11

ELECT CHIP

47uF

20%

6.3V

C342

1-126-206-11

ELECT CHIP

100uF

20%

6.3V

C343

1-126-205-11

ELECT CHIP

47uF

20%

6.3V

C350

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C351

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C352

1-126-205-11

ELECT CHIP

47uF

20%

6.3V

C353

1-163-038-91

CERAMIC CHIP

0.1uF

 

25V

C355

1-163-251-11

CERAMIC CHIP

100PF

5%

50V

C357

1-163-021-91

CERAMIC CHIP

0.01uF

10%

50V

88

Page 87 Page 89
Image 88
Page 87 Page 89
Contents Specifications 928-998-12SELF-DIAGNOSIS Function Items of Error History Mode Items and Contents AEP, UK Flexible Circuit Board RepairingHK, SP, MY, AR, AUS, KR, JE Table of Contents DisassemblyDiagrams Exploded ViewsDrawing OUT the Tray During Power OFF Cleaning the Optical Pickup CD PlayerSection Servicing Note Removing the Indication Plate FLService Position the Power Board Cold Reset Hot ResetLED and Fluorescent Indicator Tube All Lit, Key Check Mode Change-over of AM tuner Step between 9kHz and 10kHzAging Mode Error History Display ModeReading the Mechanism Error History Display Reading the BD Error History DisplayIOP JIG for Checking BD MD Board WaveformTEO Record Precedure Checks Prior to Parts Replacement and Adjustments Forced ResetREC/PLAY Main Board Component SideRetry Cause Display Mode Tuning +/MD/CD/TUNING +Hexadecimal nBinary Conversion Table Location of Parts and Controls Section GeneralFront Panel Page Page Section Disassembly CaseFront Panel Back PanelMain Board and Power Transformer CD Mechanism DeckCD Base Unit TRAY, Gear and CAMOptical PICK-UP Section of CD KSS-213BA/F-NP BD CD BOARD, Spindle Motor M101 and Sled Motor M102 MD Mechanism DeckSet the shaft of Cam gear to Over Write Head Optical PICK-UP of MD KMS-260B/J1N Spindle Motor M901 and Sled Motor M902 MDSection Test Mode Precautions for USE of Test ModeSetting the Test Mode Exiting the Test ModeSelecting the Test Mode Display Contents Mark GroupOperating the Continuous Playback Mode Non-Volatile Memory Mode EEP ModeMID OUTTest Mode Displays Functions of Other ButtonsMeanings of Other Displays Section Electrical Adjustments MD Section Parts Replacement and AdjustmentPrecautions for Checking Laser Diode Emissinon Precautions for USE of Optical PICK- UP KMS-260BPrecautions for Adjustments Creating Continuously Recorded DiscTemperature Compensation Offset Check Laser Power CheckChecks Prior to Repairs Specified ValuePlay Checking MO Error Rate Check CD Error Rate CheckFocus Bias Check Self-Recording/playback CheckInitial Setting of Adjustment Value Temperature Compensation Offset AdjutmentLaser Power Adjustment Recording and Displaying the IOP InformationTraverse Adjustment CheckFocus Bias Adjustment Press the ENTER/YES R button, display EFB =Error Rate Check Auto Gain Control Output Level AdjustmentCD Auto Gain Control Output Level Adjustment MO Auto Gain Control Output Level AdjustmentAdjusting Points and Connecting Points CD SectionCurve Check RF Level CheckHCD-MD373 Section Diagrams Circuit Boards LocationBlock Diagrams BD CD Section HCD-MD373BD MD /2 RECD/A Converter Main Section BD CD SectionWaveforms BD CD Section BD MD 1/2 SectionBD MD 2/2 Section Main 3/3 SectionSee page 40 for Circuit Boards Location Printed Wiring Board BD CD SectionMain Board Schematic Diagram BD CD Section Printed Wiring Board BD MD Section Semiconductor LocationSchematic Diagram BD MD /2 MD Digital Board Schematic Diagram SP Section Printed Wiring Board SP Section Printed Wiring Board Main Section Schematic Diagram Main /3 See page 68 for IC Block DiagramsHCD-MD373 HCD-MD373 Schematic Diagram MD Digital Section See page 45 for Waveforms See page 67 for IC Block DiagramsPrinted 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 AEP, UK Printed Wiring Board Power SectionExcept AEP, UK Voltage Selector Schematic Diagram BD Switch Section Printed Wiring Board BD Switch SectionSchematic Diagram Loading Section Printed Wiring Board Loading SectionIC Block Diagrams BD MD Board 1/2 IC101 CXA2523ARIC152 BH6511FS-E2 BD MD Board 2/2 IC121 CXD2654RC103 CXA2568M-T6 MD Digital Board BD CD Board IC101 CXD2587QIC153 LB1830M-S-TE-L Main Board 1/3 IC302 MC14052B Main Board 3/3 IC171 LB1641Main Board 2/3 IC301 M62428AFP IC931 M62016L IC101 Digital Signal Processor CXD2587Q Bdcd board IC PIN FunctionsRfdc AdioAVSS0 IgenIC101 RF Amplifier CXA2523AR Bdmd board MNT0 FOK MNT1 ShckMNT2 Xbusy MNT3 SlocMvci AvddRFI AvssFS4 SprdSpfd FginIC501 Master Control M30620ECFP-A21 Main board CD-RESET StereoTuned ST-CESection Exploded Views Case and Front Panel SectionChassis Section 59 #3113 110 107 MD Mechanism Deck MDM-5A125 126 106 105 MD Base Unit MBU-5A CD Mechanism Deck CDM55A-5SBD32 CD Base Unit BU-5SBD32 255 256 257 253 254252 254 258 251CD Mechanism Deck CDM55C-5BD32 CD Base Unit BU-5BD32 355 356 357 353 354352 354 358 351Section Electrical Parts List AMP AMP BD CD BD CD BD MD BD MD MD Digital Inductor Chip2SJ278MYTR 2SK1764KYTR ResistorMD Digital Loading Main Main Ground Terminal EP1Terminal BOARD, Ground EP2Description Remark R402 249-417-11 Indicator TUBE, Fluorescent PanelPanel BOARD, Complete Jack LINE-INPanel Power Switch Voltage Selestor TRANSFORMER, SUB PowerPIN, Connector 7P SWITCH, Push 1 KEYSCREW,PRECISION +P Hardware ListScrew +B 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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