Sony Ta Dx80

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Transcript of Sony Ta Dx80

  • SERVICE MANUAL

    INTEGRATED STEREO AMPLIFIER

    E Model

    SPECIFICATIONS

    TA-DX80Ver 1.0 2001.03

    9-929-592-11 Sony Corporation2001C0500-1 Audio Entertainment GroupC 2001.3 General Engineering Dept.

    TA-DX80 is the amplifier section inMHC-DX80, MHC-VX888.

    The following measured at AC 120, 220, 240 V 50/60 HzDIN power output (rated) 75 + 75 watts

    (6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)

    100 + 100 watts(6 ohms at 1 kHz, 10% THD)

    InputsMD/VIDEO (AUDIO) IN: voltage 450 mV/250 mV,(phono jacks) impedance 47 kilohmsMIC: sensitivity 1 mV,(phone jack) impedance 10 kilohmsOutputsPHONES: accepts headphones of(stereo mini jack) 8 ohms or moreFRONT SPEAKER: accepts impedance of 6 to 16 ohmsSURROUND SPEAKER: accepts impedance of 6 ohms

    GeneralPower requirementsMexican models: 120 V AC, 60HzE91 models: 220 V AC, 50/60 HzOther models: 120 V, 220 V or 230 240 V AC, 50/60Hz

    Adjustable with voltage selector

    Power consumption 180 watts

    Dimensions (w/h/d) Approx. 150 360 343 mmMass: Approx. 5.5 kg

    Design and specifications are subject to change without notice.

    AbbreviationE91: 220 V AC area in E model

  • 2TA-DX80

    TABLE OF CONTENTS

    1. SERVICING NOTE .................................................. 2

    2. GENERAL ................................................................... 3

    3. DISASSEMBLY3-1. Disassembly Flow ........................................................... 43-2. Case ................................................................................. 43-3. Front Panel Section ......................................................... 53-4. MAIN Board ................................................................... 5

    4. DIAGRAMS4-1. Note for Printed Wiring Boards and

    Schematic Diagrams ....................................................... 54-2. Printed Wiring Board MAIN Board ........................ 64-3. Schematic Diagram MAIN Board ........................... 74-4. Printed Wiring Boards

    INLET/PANEL/TRANS Boards .............................. 84-5. Schematic Diagram

    INLET/PANEL/TRANS Boards .............................. 9

    4. EXPLODED VIEW ................................................... 10

    5. ELECTRICAL PARTS LIST ............................... 10

    SAFETY-RELATED COMPONENT WARNING!!COMPONENTS IDENTIFIED BY MARK 0 OR DOTTEDLINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMSAND IN THE PARTS LIST ARE CRITICAL TO SAFEOPERATION. REPLACE THESE COMPONENTS WITHSONY PARTS WHOSE PART NUMBERS APPEAR ASSHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-LISHED BY SONY.

    MODEL IDENTIFICATION

    REAR VIEW

    Notes on chip component replacement Never reuse a disconnected chip component. Notice that the minus side of a tantalum capacitor may be dam-

    aged by heat.

    MODEL NO. TA-DX80INTEGRATED STEREO AMPLIFIER

    Mexican model : AC: 120 V - 60 Hz 180 WE91 model : AC: 220 V - 50/60 Hz 180 WOther models : AC: 120/220/230 240 V - 50/60 Hz 180W

    AbbreviationE91: 220 V AC area in E model

    SECTION 1SERVICING NOTE

  • 3TA-DX80SECTION 2GENERAL

    This section is extracted frominstruction manual.

    LOCATION OF CONTROLS

    Front view

    1 Indicator2 LINK/SURROUND/SUB WOOFER indicator3 SURROUND SPEAKER MODE switch4 SURROUND SPEAKER LEVEL control

    1 SYSTEM CONTROL connector2 SPEAKER terminal3 VOLTAGE SELECTOR switch

    (EXCEPT Mexican and E91 models)4 - AC IN terminal

    AbbreviationE91: 220 V AC area in E model

    Rear view

    1

    2

    3

    4

  • 4TA-DX80

    This set can be disassembled in the order shown below.

    3-1. DISASSEMBLY FLOW

    SECTION 3DISASSEMBLY

    Note: Follow the disassembly procedure in the numerical order given.

    3-2. CASE

    3-3. FRONT PANEL SECTION(Page 5)

    3-2. CASE(Page 4)

    3-4. MAIN BOARD(Page 5)

    1 screw (case3 TP2)(8 mm)

    1 screw (case3 TP2)(10 mm)

    1 screw (case3 TP2)(10 mm)

    1 screw (case3 TP2)(8 mm)

    2 three screws(BVTP3 8)

    2 four screws(BVTP3 8)

    3 case

  • TA-DX80

    55

    3-3. FRONT PANEL SECTION

    3 screw(BVTP3 10)

    5 two screws(BVTP3 10)

    6 two screws(BVTP3 16)

    3 two screws(BVTP3 8)

    4

    8 MAIN board

    1 wire (flat type) (15 core)(CN111)

    7 heat sink assy

    2 connector(CN501)

    4 front panel section

    1 wire (flat type) (15 core)(CN111)

    3 claw

    2 three screws(BVTP3 8)

    3-4. MAIN BOARD

    SECTION 4DIAGRAMS

    4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS

    Note on Printed Wiring Board:X : parts extracted from the component side.Y : parts extracted from the conductor side. : Pattern from the side which enables seeing. Indication of transistor.

    B

    These are omitted.

    C E

    Q

    B

    These are omitted.

    C E

    Q

    Note on Schematic Diagram: All capacitors are in F unless otherwise noted. pF: F

    50 WV or less are not indicated except for electrolyticsand tantalums.

    All resistors are in and 1/4

    W or less unless otherwisespecified.

    2 : nonflammable resistor.5 : fusible resistor.C : panel designation.

    A : B+ Line.B : B Line. Voltages are dc with respect to ground under no-signal

    conditions. Voltages are taken with a VOM (Input impedance 10 M).

    Voltage variations may be noted due to normal produc-tion tolerances.no mark : POWER ON

    Signal path.F : AUDIO

    AbbreviationBR : Brazilian modelE91 : 220 V AC area in E modelMX : Mexican model

    Note: The components identified by mark 0 or dotted linewith mark 0 are critical for safety.Replace only with part number specified.

    AbbreviationE91 : 220 V AC area in E modelMX : Mexican model

  • TA-DX80

    66

    JW301

    C104

    C154

    IC101

    R311

    R312

    D301

    D302

    C103C153

    R104

    C152

    R154

    C102

    IC111

    C101

    C151

    C113

    R115

    C111

    C112Q111

    R111R112

    R113

    R116

    R152

    Q124

    R102

    Q125

    C114

    IC141

    C141

    C191

    R141

    R101

    R191

    R192

    R142

    R155

    TM301

    C123

    C173

    C303

    JW101

    JW11

    0

    JW11

    1

    JW11

    2

    JW11

    3

    JW114

    JW115

    JW118

    JW11

    9

    JW12

    0

    JW12

    1

    JW210

    JW10

    8

    R151

    JW10

    5

    JW104

    R105

    R136

    Q127

    R135

    JW10

    01

    JW12

    2

    C262

    R554

    Q122

    Q123

    R126

    R206

    C551

    C202

    C502

    R268

    C203

    R127

    R201

    C201

    R202

    R203

    C204

    C206

    C207R211

    R213

    D251

    R205

    R256

    R255

    R505

    R251

    Q201

    Q251

    Q263

    R266

    R261

    R267

    R208

    R210

    R214

    R212C257

    C251

    R252

    C253

    C256

    C254

    C552

    C252

    R207

    R506

    C255

    C205

    R257

    D201

    R253

    R260

    D252

    R555

    R556

    D202

    C553

    C554C504

    D502 D

    552

    Q121

    Q171

    R121

    R122

    R123

    R171

    R172

    R173

    C231

    R231

    R232

    R233

    R234

    R235

    D231

    R551

    R501

    R128

    C501

    R553

    CN501

    R258

    Q126

    R133

    EP501

    D501

    IC20

    1

    Q551

    R204

    R264

    R265

    Q421

    Q422

    Q423

    Q424

    Q425

    Q426

    R435

    R437

    R436

    R438

    R433

    R434

    CN111

    R134

    R432

    R430

    R431

    R429

    JW144

    JW145

    JW146

    JW147

    JW14

    8

    JW14

    9

    JW15

    0

    JW151

    JW152 JW153

    JW156

    JW157

    JW158

    JW159

    JW160

    JW161

    JW162

    JW163

    JW164

    JW16

    5

    JW167

    JW168

    JW169

    JW171JW172

    JW173

    JW174

    JW179

    JW181

    JW182

    JW183

    JW184

    JW185 JW186

    JW189

    JW193

    JW194

    JW195

    JW196

    JW19

    7 JW198

    JW199

    JW191

    JW192

    R254

    C261

    JW154

    Q428

    R443

    JW15

    5

    R440

    R441

    Q427

    R502

    R442

    R552

    LP2

    R504

    Q321 Q323Q322

    Q324

    Q325

    Q326 Q327

    Q328

    R331

    R332

    R325

    R326

    R327

    R328

    R330

    R323

    R324

    R321

    R322

    R333

    R334

    D321

    C322

    C321

    C323C324

    C121

    R125

    IC121

    Q262

    Q261

    R262

    R263

    C503

    R335

    C163

    C161

    C162 Q161

    C171

    R161R162

    R163

    R166

    R165

    R329

    R503

    R124

    R130 Q501

    C126

    C176

    JW125

    JW12

    6

    JW128

    JW129

    JW130

    JW131

    JW13

    2

    JW133

    JW134

    JW135

    JW136

    JW13

    7JW13

    8

    JW13

    9

    JW140

    JW14

    1

    JW14

    2

    JW14

    3

    JW170

    JW175

    JW17

    6

    JW177

    JW17

    8

    JW180

    JW187

    R185 R186

    Q177

    JW16

    6

    R129 JW127

    JW12

    4JW12

    3

    JW35

    1

    JW18

    8

    C122

    C131

    C132

    R220

    MAIN BOARD

    13

    12

    1

    2

    CN101SYSTEM

    CONTROL

    TOHCD-DX80

    ORHCD-VX888

    8 1

    5 4

    +

    +R

    L

    SPEAKERIMPEDANCE USE

    6 16