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SERVICE MANUAL
Ver 1.0 2003. 03
• The MDR-IF540R is the headphones
that comprises the MDR-IF540RK.
SRS is a trademark of SRS Labs Inc.
SRS Headphones are manufactured under
license from SRS Labs. Inc.
• MDR-IF540RK consists of the following models respectively.
Headphones
MDR-IF540R
Transmitter
TMR-IF540R
Sony Corporation
9-877-225-01
2003C0400-1
Personal Audio Company
© 2003. 03
Published by Sony Engineering Corporation
MDR-IF540R
Headphones
Power source
Mass
Design and specifications are subject to change without
notice.
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.
US Model
Canadian Model
E Model
Tourist Model
SPECIFICATIONS
Supplied rechargeable
nickel-metal hydride
batteries BP-HP550 or
commercially available
(size AAA) dry batteries
Approx. 285 g (11 oz.)
including batteries
HEADPHONES
1
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Summary of Contents for Sony MDR-IF540R
- Page 1 US Model Canadian Model Ver 1.0 2003. 03 E Model Tourist Model • The MDR-IF540R is the headphones that comprises the MDR-IF540RK. SRS is a trademark of SRS Labs Inc. SRS Headphones are manufactured under license from SRS Labs. Inc.
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Page 2: Table Of Contents
MDR-IF540R TABLE OF CONTENTS 1. GENERAL Charging the supplied rechargeable batteries ......3 Listening to a programme ............6 2. DISASSEMBLY 2-1. Front Plate (R) Assy ............8 2-2. RX Board ................9 2-3. Hanger (R) ................9 2-4. Wiring on the Right Side ........... 10 2-5. -
Page 3: General
MDR-IF540R SECTION 1 GENERAL This section is extracted from instruction manual. - Page 4 MDR-IF540R...
- Page 5 MDR-IF540R...
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Page 6: Listening To A Programme
MDR-IF540R... - Page 7 MDR-IF540R...
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Page 8: Disassembly
MDR-IF540R SECTION 2 DISASSEMBLY Note : This set can be disassemble according to the following sequence. 2-1. FRONT PLATE (R) ASSY 2-5. FRONT PLATE (L) ASSY (Page 8) (Page 10) 2-2. RX BOARD 2-6. BATT BOARD (Page 9) (Page 11) 2-3. -
Page 9: Rx Board
MDR-IF540R 2-2. RX BOARD 1 Removal the solder at 12 places. Note for installation : Solder the leads at the places shown below with attention to their colors. natural housing (R) assy white natural natural green 3 RX board to driver... -
Page 10: Wiring On The Right Side
MDR-IF540R 2-4. WIRING ON THE RIGHT SIDE PD2 board (R-CH front) PD1 board (R-CH rear) 2-5. FRONT PLATE (L) ASSY 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: Batt Board
MDR-IF540R 2-6. BATT BOARD 1 Removal the solder at 8 places. Note for installation : Solder the leads at the places shown below with attention to their colors. to motor housing (L) assy 3 BATT board blue natural 2 P 2x6 black 2-7. -
Page 12: Wiring On The Left Side
MDR-IF540R 2-8. WIRING ON THE LEFT SIDE PD2 board (L-CH rear) PD1 board (L-CH front) 2-9. HANGER LID (L) 1 P 2.6x6 2 P 2.6x6 3 head band 4 hanger lid (L) -
Page 13: Wiring On The Sw Board
MDR-IF540R 2-10. WIRING ON THE SW BOARD SW board head band 2-11. HANG THE TENSION SPRING Note for installation : Insert the end of the suspender assy under the S103 on the SW board. hanger lid (L) suspender assy SW board... -
Page 14: Electrical Adjustments
: 34 dB µ V (EMF) Headphones Section 0 dBV = 315 mVrms Connection: Note: level meter 1. Use the transmitter section (TMR-IF540R) as a jig for adjusting the headphones section (MDR-IF540R). Tuning Adjustment RX board Preparation: TP4 (R-ch) INPUT B... - Page 15 MDR-IF540R Adjustment Location: BATT board (side A) RX board (side B) BATT ( ) MUTE ON POSITION TUNING ADJ (L-ch) TUNING ADJ (R-ch) (L-ch) (R-ch) RV301 BATT (+)
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Page 16: Diagrams
MDR-IF540R SECTION 4 DIAGRAMS THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: • All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. -
Page 17: Block Diagram - Receiver Section
MDR-IF540R 4-2. BLOCK DIAGRAM — RECEIVER SECTION — (2.3MHz DET) TUNING 2.3MHz 1.5V MIXER/LIMITER/ DEMODULATION SRS SURROUND PROCESSOR DRIVER AMP +1.5V BYPASS LOUT OUT1 MDD1 L-CH FRONT Q1,2 DRIVER SECTION RF AMP BUFFER (L-CH) WOUT L-CH REAR SECTION FILTER ROUT... -
Page 18: Printed Wiring Boards - Receiver Section (1/2)
MDR-IF540R 4-3. PRINTED WIRING BOARDS — RECEIVER SECTION (1/2) — • Refer to page 16 for Common Note on Printed Wiring Boards and Circuit Boards Location. MDD2 D1-4 IR RECEIVER MDD1 3.3V • Semiconductor Location (Side A) Ref. No. Location... -
Page 19: Printed Wiring Board - Receiver Section (2/2)
MDR-IF540R 4-4. PRINTED WIRING BOARD — RECEIVER SECTION (2/2) — • Refer to page 16 for Common Note on Printed Wiring Boards and Circuit Boards Location. • Semiconductor Location (Side B) Ref. No. Location TP10 D201 D302 D303 IC201 IC302... -
Page 20: Printed Wiring Boards - Power Section (1/2)
MDR-IF540R 4-5. PRINTED WIRING BOARDS — POWER SECTION (1/2) — • Refer to page 16 for Common Note on Printed Wiring Boards and Circuit Boards Location. BATT (–) (Page 18) M301 (Page 18) BATT ( + ) -
Page 21: Printed Wiring Board - Power Section (2/2)
MDR-IF540R 4-6. PRINTED WIRING BOARD — POWER SECTION (2/2) — • Refer to page 16 for Common Note on Printed Wiring Boards and Circuit Boards Location. • Semiconductor Location (Side B) Ref. No. Location S102 S101 D101 D102 IC101 IC102... -
Page 22: Schematic Diagram - Receiver Section
MDR-IF540R 4-7. SCHEMATIC DIAGRAM — RECEIVER SECTION — • Refer to page 16 for Common Note on Schematic Diagram and page 23 for IC Block Diagrams. Q101 SW103 R101 R102 L101 D102 L102 C104 TP101 R103 C201 C202 R201 IC201... -
Page 23: Ic Block Diagrams
MDR-IF540R 4-8. IC BLOCK DIAGRAMS IC2 NJM2190V(TE2) BYPASS – BIAS FILTER BYPASS MODE CONTROL IC3 LA4533M-TE-L POWER MUTE POWER SWITCH MUTE SWITCH SWITCH CIRCUIT IN-1 AMP 1 OUT-1 PRE-GND POWER GND IN-2 AMP 2 OUT-2 BIAS... -
Page 24: Exploded Views
MDR-IF540R SECTION 5 EXPLODED VIEWS NOTE: • The mechanical parts with no reference • -XX and -X mean standardized parts, so number in the exploded views are not supplied. they may have some difference from the • Items marked “*” are not stocked since original one. -
Page 25: Housing (R) Assy Section
MDR-IF540R 5-2. HOUSING (R) ASSY SECTION not supplied (PD1 board) not supplied not supplied (PD2 board) supplied supplied MDD2 supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-246-154-01 PAD (R), EAR 3-246-141-01 LID (R), HANGER... -
Page 26: Electrical Parts List
MDR-IF540R SECTION 6 BATT ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in • Items marked “*” are not stocked since When indicating parts by reference the parts list may be different from the they are seldom required for routine service. - Page 27 MDR-IF540R Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-126-607-11 ELECT CHIP 47uF D303 8-719-070-20 DIODE RB706F-40 1-162-970-11 CERAMIC CHIP 0.01uF 1-162-959-11 CERAMIC CHIP 330PF < FERRITE BEAD > 1-164-217-11 CERAMIC CHIP 150PF 1-164-217-11 CERAMIC CHIP...
- Page 28 MDR-IF540R Ref. No. Part No. Description Remark 1-216-837-11 METAL CHIP 1/10W 1-216-839-11 METAL CHIP 1/10W 1-216-797-11 METAL CHIP 1/10W 1-216-797-11 METAL CHIP 1/10W R201 1-216-821-11 METAL CHIP 1/10W R301 1-216-805-11 METAL CHIP 1/10W R302 1-216-821-11 METAL CHIP 1/10W R303 1-216-833-11 METAL CHIP...
- Page 29 MDR-IF540R MEMO...
- Page 30 MDR-IF540R REVISION 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...