Sony MDR-IF4000 service manual Schematic Diagram Receiver Section, Convertor

Page 14

MDR-IF4000

3-5. SCHEMATIC DIAGRAM – RECEIVER SECTION –

 

 

 

S701

 

 

 

 

 

(AUTO ON/OFF)

 

 

 

 

TP601

S601

 

D601

 

 

BATT DET

RB501V-40TE-17

 

 

 

(

CHARGE

(

 

S602

NIMH1

 

BATT DET

NI-MH

TERMINAL

 

 

 

 

NIMH2

 

 

 

 

 

NI-MH

 

 

TP602

 

 

RECHARGEABLE

 

 

 

 

BATTERY

 

 

 

 

 

 

 

 

 

 

(BP-HP550)

 

 

 

 

 

1.2V 550mAh x 2

 

 

Q601

 

 

 

 

 

 

 

IC502

 

 

 

 

2SB1690K

 

 

 

 

 

 

 

XC6219B252MR

 

 

C602

 

L501

D501

 

L502

 

 

+2.5V REG

 

 

 

+B SWITCH

 

 

 

 

 

 

 

2.2

 

 

RB161M-20FTR

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R602

R601

 

 

IC503

 

 

 

 

 

 

 

 

100k

 

 

 

 

 

 

 

 

 

 

 

 

XC6371A281PR

 

 

 

 

 

 

 

 

 

10k

 

 

 

 

 

R503

 

 

 

 

 

 

 

+2.8V DC/DC

 

 

 

 

 

 

 

 

 

C603

 

C503

 

 

10k

 

 

 

 

 

 

 

CONVERTOR

 

 

 

 

 

 

 

 

0.01

C505

100

C510

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R603

 

 

10V

4.7

C507

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

 

1k

 

 

 

 

10

C508

 

 

 

 

 

Q602

C504

 

 

 

C506

10V

0.1

TP505

C516

 

 

 

100

 

 

 

C511

 

 

 

 

2SC2412K-T

 

 

 

10

 

 

1

C514

 

 

10V

 

 

 

4.7

 

 

 

 

+B SWITCH

 

 

 

10V

 

 

C513

47

C605

C604

R604

 

 

 

 

 

 

 

 

0.1

6.3V

1

0.01

1M

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC601

 

 

 

 

 

 

 

 

 

 

 

 

XC61CN1902NR

 

 

 

 

 

 

 

 

 

 

 

 

LEVEL DETECT

 

 

 

 

 

 

 

 

 

 

 

 

 

L001

 

 

C007

 

 

C009

0.1

 

 

22

R002

 

 

6.3V

1k

 

R001

C006

 

 

2.2k

 

 

0.1

 

 

 

 

B+

 

C011

 

 

 

0.0068

 

SIG

 

 

C012

 

 

C014

0.0068

 

 

100p

 

 

C010

 

 

330p

 

 

L003

 

 

(R-CH REAR SECTION)

D407

D408

PP508

PP508

(R-CH FRONT SECTION)

C002

C003

C005

C008

47

10

6.3V

1

16V

0.1

IC001

 

 

L002

CXA3668N-T4

 

 

 

FRONTEND

 

 

 

 

 

 

C001

 

 

 

0.0047

 

 

 

R003

 

 

 

33k

 

 

 

R004

 

 

 

1.5k

 

 

 

C013

 

 

 

0.01

 

 

TP004

C015

 

 

 

 

 

 

0.1

 

 

 

017

 

 

 

0.1

(L-CH FRONT SECTION)

D401

D402

PP508

PP508

(L-CH REAR SECTION)

IC501 XC62HR1502MR 1.5V REG

 

 

C101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L103

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C501

C502

 

 

C102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

L101

R101

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

0.1

C104

 

 

L102

R102

 

 

 

 

 

 

 

 

 

4V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TP103

 

 

1k

 

 

 

 

 

 

 

 

 

 

 

L104

C105

 

 

 

1k

 

 

 

 

 

 

 

 

 

 

 

 

10

C103

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C004

 

1

16V

0.1

 

 

 

 

 

 

 

 

 

 

C509

 

R501

 

 

RV201

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

50k/50k

 

 

 

 

 

 

 

L105

R103

 

 

 

 

 

0.1

 

10k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

 

 

 

 

 

 

 

VOL

C107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L201

 

 

 

R202

 

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C110

 

 

 

 

 

 

 

 

 

 

 

 

 

C204

 

 

C202

 

 

 

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

C207

 

 

L107

 

 

 

 

 

 

 

 

 

 

 

 

C206

47

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

C203

 

 

C116

 

 

 

 

 

 

 

 

 

 

 

 

0.1

4V

 

10V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.0022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C108

0.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

47

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.3V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C112

L106

 

 

 

 

 

 

 

 

 

C111

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

15p

X101

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C109

 

 

 

 

 

 

 

 

 

 

12.288MHz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IC201

 

 

 

 

 

R104

 

 

 

 

 

 

 

 

 

 

C113

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PCM1773

 

 

 

 

 

 

 

 

 

 

IC101

 

 

 

0.1

 

 

 

 

 

 

68

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L004

C016

 

 

 

 

CXD4017R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.001

 

 

 

 

 

 

 

 

 

 

 

 

D/A CONVERTER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IR RECEIVER/DSP

 

 

 

 

C115

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

15p

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C201

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

C118

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10V

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R201

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

 

 

 

 

 

 

 

L108

R108

 

 

 

 

 

 

 

 

C208

C205

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

1k

 

 

 

 

 

 

 

 

0.0022

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

16V

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R307

 

 

 

 

 

 

 

C120

C119

 

IC102

 

 

D103

 

 

 

 

C310

10k

 

 

 

 

 

 

 

 

 

 

1SS355TE-17

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

 

R106

10

 

 

 

 

 

 

 

 

0.1

 

 

BU4223G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

10V

 

 

 

 

 

 

 

 

 

 

 

 

RESET

 

 

 

 

 

 

 

 

 

 

 

 

R109

 

 

 

C121

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L109

 

R111

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3.3k

 

 

22

 

 

D104

R107

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.7k

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6.3V

 

1SS355TE-17

10k

 

 

 

 

 

Q301

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

R110

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UN2225-(TX)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Q101

MUTE

 

 

 

 

 

820

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

C123

 

 

 

 

 

 

C130

R112

 

 

 

 

DTC144EE-TL

 

 

 

 

 

C124

C125

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10k

 

 

 

 

MUTE DRIVE

 

 

 

 

 

0.01

 

 

 

 

 

0.022

 

 

 

 

 

 

D101

 

 

0.1

0.1

 

 

 

 

 

 

C210

 

 

 

 

 

 

 

 

 

C126

 

 

 

 

C117

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1SS355TE-17

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

 

0.1

 

 

 

 

 

10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10V

 

 

 

 

D102

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1SS355TE-17

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

L301

 

 

 

 

 

C306

L302

 

 

 

47

R502

 

 

10V

 

L304

 

 

 

470

 

 

 

 

 

C308

 

 

 

 

L303

 

 

 

0.1

 

D502

 

 

 

 

 

 

SLR-342VC3F

 

 

C307

 

POWER

C301

R301

 

0.1

 

 

15p

68k

 

 

 

 

 

IC301

 

 

 

 

NJM2113V-TE2

 

 

 

HEADPHONE AMP

 

 

 

 

 

C305

 

 

 

 

3.3

 

 

C302

 

10V

10R302

10V 10k

 

 

C303

 

C304

 

 

100p

 

10

 

 

 

 

10V

 

 

 

C315

 

 

 

 

47

 

 

 

 

10V

L305

 

 

 

 

 

 

C317

 

L306

 

 

0.1

 

 

 

 

 

 

C309

R306

 

C316

 

15p

68k

 

 

 

0.1

 

 

 

 

 

 

 

 

IC302

 

 

 

NJM2113V-TE2

 

 

HEADPHONE AMP

 

 

 

 

 

 

C314

C311

R308

 

 

3.3

10

 

 

10V

10V

10k

 

 

 

Q302

 

 

 

C313

UN2225-(TX)

 

 

 

 

 

 

10

MUTE

 

 

 

 

 

 

10V

 

 

 

 

 

 

C312

 

 

 

 

100p

 

 

SP001 040020 DRIVER (R-CH)

SP002 040020 DRIVER (L-CH)

D405

D406

PP508

PP508

D403

D404

PP508

PP508

MDR-IF4000

14 14

Image 14
Contents Specifications MDR-IF4000Diagrams Table of ContentsDisassembly Exploded ViewsSection General Front Plate R Assy Section DisassemblyDisassembly Flow RX Baord Hanger RWiring on the Right Side Front Plate L AssyBatt Board Hanger LWiring on the Left Side Wiring on the SW Board HOW to Hang the Tension SpringSection Diagrams Circuit Boards LocationBlock Diagram Printed Wiring Board Receiver Section RX Board Side aPrinted Wiring Board Power Section Batt BoardSchematic Diagram Receiver Section ConvertorIC Block Diagrams IC101 CXD4017RMDR-IF4000 Housing L Assy Section Section Exploded ViewsHousing R Assy Section Not supplied PD1 board SP001 SuppliedElectrical Parts List SectionPCM1773PWR RX RX-SW Memo Supplement Change of RX Board PD1 Board CH Front Section CH Rear Section Schematic Diagram Receiver Section Suffix-12 RX Suffix-12 RES, VAR, Carbon Memo Revision History

MDR-IF4000 specifications

The Sony MDR-IF4000 is a remarkable over-ear wireless headphone solution that excels in delivering high-quality audio and user convenience. Designed for both home and studio use, these headphones incorporate Sony's advanced audio technologies to provide an immersive listening experience.

One of the standout features of the MDR-IF4000 is its infrared wireless transmission system. This technology allows users to enjoy music and other audio without the hassle of wired connections. The infrared signal provides a reliable and interference-free connection, ensuring consistent audio quality up to a distance of approximately 30 meters, depending on the environment. This level of freedom is perfect for those who want to move around while listening to their favorite tracks or watching movies.

Audio quality is another key highlight of the MDR-IF4000. Utilizing large 40mm neodymium drivers, these headphones deliver rich, clear sound with impressive bass response. The frequency response range spans from 20 Hz to 20 kHz, which means users can experience a wide range of sounds, from deep lows to sparkling highs. This broad frequency range is essential for those who demand fidelity in their audio playback, whether it’s for music, movies, or gaming.

Comfort is also a focal point in the design of the MDR-IF4000. The headphones feature plush ear cushions that provide a snug yet comfortable fit, making them ideal for extended listening sessions. The adjustable headband ensures that users can find their perfect fit, enhancing the overall experience.

Moreover, these headphones come equipped with an automatic power-off feature that conserves battery life when the headphones are not in use. The included rechargeable battery can provide hours of uninterrupted listening, making the MDR-IF4000 a practical choice for daily use.

The MDR-IF4000 is compatible with various audio sources. It includes an infrared transmitter that can easily connect to televisions, receivers, and other devices, ensuring versatility for all kinds of audio playback. This seamless connectivity presents an ideal solution for movie enthusiasts and audiophiles alike.

In summary, the Sony MDR-IF4000 headphones stand out for their wireless convenience, impressive audio quality, comfortable design, and versatile compatibility. Whether you are enjoying a movie at home or listening to your favorite music, these headphones are built to enhance your audio experience without the restrictions of traditional wired options.