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SERVICE MANUAL

US Model

Canadian Model

E Model

Tourist Model

MDR-IF540R

HEADPHONES

Ver 1.0  2003. 03

9-877-225-01

2003C0400-1

© 2003. 03

Sony Corporation

Personal Audio Company

Published by Sony Engineering Corporation

Notes on Chip Component Replacement

Never reuse a disconnected chip component.

Notice that the minus side of a tantalum capacitor may be
damaged by heat.

Headphones

Power source

Supplied rechargeable
nickel-metal hydride
batteries BP-HP550 or
commercially available
(size AAA) dry batteries

Mass

Approx. 285 g (11 oz.)
including batteries

Design and specifications are subject to change without
notice.

SPECIFICATIONS

           SRS is a trademark of SRS Labs Inc.
SRS Headphones are manufactured under
license from SRS Labs. Inc.

• The MDR-IF540R is the headphones

that comprises the MDR-IF540RK.

• MDR-IF540RK consists of the following models respectively.

Headphones

MDR-IF540R

Transmitter

TMR-IF540R

Summary of Contents for MDR-IF540R

Page 1: ... may be damaged by heat Headphones Power source Supplied rechargeable nickel metal hydride batteries BP HP550 or commercially available size AAA dry batteries Mass Approx 285 g 11 oz including batteries Design and specifications are subject to change without notice SPECIFICATIONS SRS is a trademark of SRS Labs Inc SRS Headphones are manufactured under license from SRS Labs Inc The MDR IF540R is th...

Page 2: ...ng the Tension Spring 13 3 ELECTRICAL ADJUSTMENTS Tuning Adjustment 14 Mute ON Position Adjustment 14 4 DIAGRAMS 4 1 Circuit Boards Location 16 4 2 Block Diagram Receiver Section 17 4 3 Printed Wiring Boards Receiver Section 1 2 18 4 4 Printed Wiring Board Receiver Section 2 2 19 4 5 Printed Wiring Boards Power Section 1 2 20 4 6 Printed Wiring Board Power Section 2 2 21 4 7 Schematic Diagram Rece...

Page 3: ...3 MDR IF540R SECTION 1 GENERAL This section is extracted from instruction manual ...

Page 4: ...4 MDR IF540R ...

Page 5: ...5 MDR IF540R ...

Page 6: ...6 MDR IF540R ...

Page 7: ...7 MDR IF540R ...

Page 8: ...10 2 3 HANGER R Page 9 2 4 WIRING ON THE RIGHT SIDE Page 10 2 8 WIRING ON THE LEFT SIDE Page 12 2 10 WIRING ON THE SW BOARD Page 13 2 11 HANG THE TENSION SPRING Page 13 2 6 BATT BOARD Page 11 2 7 HANGER L Page 11 2 9 HANGER LID L Page 12 3 P 2 6x6 5 front plate R assy 4 Removal the solder at 2 places Note for installation Solder the leads at the places shown below with attention to their colors ho...

Page 9: ...l white green to driver to motor natural natural red red red G N blue black S1 S301 red 1 Removal the solder at 12 places Note for installation Solder the leads at the places shown below with attention to their colors 2 3 4 1 P 2 6x6 5 hanger R hanger lid R projection Pay attention to the leads when assembling Pay attention to the leads when assembling ...

Page 10: ...rd R CH front PD1 board R CH rear 3 P 2 6x6 5 front plate L assy housing L assy driver L CH side natural green from RX board 1 ear pad L 2 P 2 6x6 4 Removal the solder at 2 places Note for installation Solder the leads at the places shown below with attention to their colors ...

Page 11: ...d red red black G N blue 2 P 2x6 1 Removal the solder at 8 places Note for installation Solder the leads at the places shown below with attention to their colors 1 P 2 6x6 2 3 4 5 hanger L hanger lid L projection Pay attention to the leads when assembling Pay attention to the leads when assembling ...

Page 12: ...12 MDR IF540R 2 8 WIRING ON THE LEFT SIDE 2 9 HANGER LID L PD2 board L CH rear PD1 board L CH front 1 P 2 6x6 2 P 2 6x6 3 head band 4 hanger lid L ...

Page 13: ... SW BOARD 2 11 HANG THE TENSION SPRING head band SW board SW board S103 suspender assy suspender assy tension spring hanger lid L housing L assy Note for installation Insert the end of the suspender assy under the S103 on the SW board ...

Page 14: ...ut to the jig TMR IF540R and connect a stabilized power to the DC IN 9V jack J3 2 Supply 2 4 V dc between BATT and BATT on the BATT board 3 Set the RV2 volume control on the RX board to the minimum level Connection 100 µF 16 V RX board TP5 L ch TP4 R ch distortion meter Adjustment Method 1 Connect a distortion meter to TP5 L ch or TP4 R ch on the RX board 2 Adjust the L5 L ch or L6 R ch so as to m...

Page 15: ...15 MDR IF540R BATT BATT BATT board side A RX board side B TP2 TP3 RV301 RV2 VOL L5 TUNING ADJ L ch L6 TUNING ADJ R ch TP5 L ch TP4 R ch RV1 MUTE ON POSITION ADJ Adjustment Location ...

Page 16: ...spect to ground under no signal detuned conditions Voltages are taken with a VOM Input impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Signal path F ANALOG J RF for printed wiring boards X parts extracted from the component side Y parts extracted from the conductor side a Through hole Pattern from the side which enables seeing The other layer s patterns are not...

Page 17: ...G V 2 REFIN RIN WIN WOUT LIN VREF MODE 4 3 3V 3 3V BYPASS BYPASS SRS SRS ROUT LOUT OUT2 OUT1 V VCC MATRIX IC2 SRS SURROUND PROCESSOR IC3 DRIVER AMP IN1 IN2 REF MDD1 DRIVER L CH MDD2 DRIVER R CH Q101 102 AUTO ON OFF S101 BATT DET D101 S102 BATT DET RECHARGEABLE BATTERY BP HP550 1 2V 550mAh X2 IC101 BATTERY DOWN DET SW103 AUTO ON OFF IC102 3 3V SWITCHING REG IC201 L101 D102 3 3V 1 5V 2 4V IC303 1 2 ...

Page 18: ... 16 for Common Note on Printed Wiring Boards and Circuit Boards Location 1 A B C D E F G H I J 2 3 4 5 6 7 8 9 10 11 12 13 14 3 3V MDD2 MDD1 B D4 D3 D1 D2 SIG GND M302 D1 4 IR RECEIVER Page 20 Page 20 D1 F 13 D2 F 11 D3 C 13 D4 C 11 Semiconductor Location Side A Ref No Location ...

Page 19: ...Q2 TP2 R312 R310 R311 TP9 R301 C308 R304 R305 C307 TP7 TP8 TP4 TP5 R306 TP305 TP304 R303 R302 Q301 Q1 IC302 C43 C316 D303 R321 TP6 TP1 SIG R19 C203 R318 C318 R309 RV1 C320 C319 R325 R329 R326 R327 TP309 R323 C315 R322 R201 IC3 Q304 L6 Q303 Q302 C305 C306 TP10 IC201 C38 C321 C324 L1 L2 L3 L4 C325 D201 RV2 RV301 S301 S1 4 4 PRINTED WIRING BOARD RECEIVER SECTION 2 2 Refer to page 16 for Common Note o...

Page 20: ... 4 5 PRINTED WIRING BOARDS POWER SECTION 1 2 Refer to page 16 for Common Note on Printed Wiring Boards and Circuit Boards Location 1 A B C D E F G H I J 2 3 4 5 6 7 8 9 10 11 12 13 SW103 M301 BATT BATT Page 18 Page 18 ...

Page 21: ...rds and Circuit Boards Location 1 A B C D E F G H I J 2 3 4 5 6 7 8 9 10 11 12 13 C101 R102 Q101 C102 R101 Q102 IC101 D101 R103 C103 C104 L102 L101 R104 C105 C106 C107 C108 C109 C110 C111 C114 S101 S102 D102 IC102 D101 C 7 D102 D 6 IC101 C 7 IC102 D 6 Q101 E 7 Q102 C 7 Semiconductor Location Side B Ref No Location ...

Page 22: ...01 R302 R303 R304 R305 R306 R307 R309 R310 R312 R314 R315 R316 R317 R318 R329 R321 R322 R323 R325 R326 R327 RV1 C101 C102 C103 C104 C106 C107 C5 C1 C3 C2 C324 C325 C323 C321 C305 C10 C18 C9 C8 C7 C108 C109 C110 C111 C114 C201 C202 C203 C204 C205 C15 C17 C16 C14 C24 C22 C26 C23 C306 C307 C311 C309 C312 C313 C319 C320 C318 C317 C316 C27 C25 C35 C36 C37 C38 C39 C40 C33 C34 C28 C29 C30 C32 C31 C43 C42...

Page 23: ... GND C4 MODE ROUT REFIN WOUT C2 V 2 V LOUT C1 WIN RIN 10 11 12 13 14 15 16 1 5 2 3 4 6 7 8 EXT FILTER MATRIX MODE CONTROL BIAS BYPASS BYPASS SRS SRS 1 2 3 4 5 10 9 8 7 6 POWER SWITCH BIAS MUTE CIRCUIT AMP 1 POWER SWITCH IN 1 PRE GND IN 2 REF MUTE SWITCH OUT 1 POWER GND OUT 2 VCC AMP 2 ...

Page 24: ...L CH 1 7 685 104 19 SCREW P 2X6 TYPE2 NON SLIT 2 7 685 133 19 SCREW P 2 6X6 TYPE2 NON SLIT NOTE The mechanical parts with no reference number in the exploded views are not supplied Items marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items XX and X mean standardized parts so they may have some difference from the origi...

Page 25: ...E R 57 3 246 156 01 CAP R HOUSING 58 3 246 139 01 HANGER R 59 3 246 141 01 LID R HANGER 60 3 246 137 01 BAND HEAD 61 A 3229 747 A SUSPENDER ASSY 62 4 966 791 01 STOPPER UPPER 63 4 966 792 01 STOPPER LOWER 64 3 318 203 62 SCREW B1 7X4 TAPPING MDD2 1 542 400 11 DRIVER 030F032 R CH 2 7 685 133 19 SCREW P 2 6X6 TYPE2 NON SLIT 51 52 53 54 55 56 57 59 58 60 61 62 62 63 63 64 64 2 2 2 2 2 not supplied PD...

Page 26: ... 11 CERAMIC CHIP 0 1uF 10 16V DIODE D101 8 719 071 34 DIODE RB521S 30 TE61 D102 8 719 072 27 DIODE MA2Z748001S0 IC IC101 6 702 083 01 IC XC61CN1902NR IC102 8 759 571 29 IC XC6371A331PR COIL L101 1 414 404 41 INDUCTOR 100uH L102 1 414 404 41 INDUCTOR 100uH TRANSISTOR Q101 6 550 363 01 TRANSISTOR 2SB1690KT146 Q102 8 729 230 49 TRANSISTOR 2SC2712 YG RESISTOR R101 1 216 845 11 METAL CHIP 100K 5 1 10W ...

Page 27: ...970 11 CERAMIC CHIP 0 01uF 10 25V C316 1 125 837 11 CERAMIC CHIP 1uF 10 6 3V C317 1 125 837 11 CERAMIC CHIP 1uF 10 6 3V C318 1 165 176 11 CERAMIC CHIP 0 047uF 10 16V C319 1 115 467 11 CERAMIC CHIP 0 22uF 10 10V C320 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C321 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C323 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C324 1 126 607 11 ELECT CHIP 47uF 20 4V C325 1 107 826 1...

Page 28: ...5 11 METAL CHIP 100K 5 1 10W R314 1 216 833 11 METAL CHIP 10K 5 1 10W R315 1 216 833 11 METAL CHIP 10K 5 1 10W R316 1 216 837 11 METAL CHIP 22K 5 1 10W R317 1 216 833 11 METAL CHIP 10K 5 1 10W R318 1 216 841 11 METAL CHIP 47K 5 1 10W R321 1 216 837 11 METAL CHIP 22K 5 1 10W R322 1 216 837 11 METAL CHIP 22K 5 1 10W R323 1 216 845 11 METAL CHIP 100K 5 1 10W R325 1 218 867 11 METAL CHIP 6 8K 5 1 10W ...

Page 29: ...29 MDR IF540R MEMO ...

Page 30: ...HISTORY Clicking the version allows you to jump to the revised page Also clicking the version at the upper right on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2003 03 New ...

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