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4

MDR-IF4000

SECTION 2

DISASSEMBLY

Note: 

Follow the disassembly procedure in the numerical order given.

2-2.

FRONT PLATE (R) ASSY

• This set can be disassembled in the order shown below.

2-1. DISASSEMBLY  FLOW

2-2. FRONT PLATE (R) ASSY

(Page 4)

2-6. FRONT PLATE (L) ASSY

(Page 6)

2-3. RX BOARD

(Page 5)

2-4. HANGER (R)

(Page 5)

2-7. BATT BOARD

(Page 7)

2-8. HANGER (L)

(Page 7)

2-10.HANGER LID (L)

(Page 8)

2-9. WIRING ON THE

LEFT SIDE
(Page 8)

2-11.WIRING ON THE

SW BOARD
(Page 9)

2-12.HOW TO HANG

THE TENSDION 
SPRING
(Page 9)

2-5. WIRING ON THE 

RIGHT SIDE
(Page 6)

SET

1

 ear pad (R)

4

 Removal the solder at 2 places.

2

 two screws

    (P 2.6x6)

3

 screw (P 2.6x6)

5

 front plate (R) assy

from RX board

driver (R-CH) side

housing (R) assy

Note for installation : Solder the leads at the
                                  places shown below with
                                  attention to their colors.

Connect a red lead to
the marked one of the
driver terminals.

natural

RED

Summary of Contents for MDR-IF4000

Page 1: ...rgeable nickel metal hydride batteries supplied or commercially available size AAA alkaline batteries Mass Approx 300 g 11 oz including the supplied rechargeable nickel metal hydride batteries Supplied accessories Rechargeable nickel metal hydride batteries BP HP550 550 mAh min 2 Operating Instructions 1 Design and specifications are subject to change without notice The MDR IF4000 is the cordless ...

Page 2: ...eaded solder Boards requiring use of unleaded solder are printed with the lead free mark LF indicating the solder contains no lead Caution Some printed circuit boards may not come printed with the lead free mark due to their particular size LEAD FREE MARK Unleaded solder has the following characteristics Unleaded solder melts at a temperature about 40 C higher than ordinary solder Ordinary solderi...

Page 3: ...for the rechargeable nickel metal hydride batteries supplied or commercially available size AAA alkaline batteries only 4 Infrared sensor There are infrared sensors in two locations on both sides 5 Self adjusting band The headphones automatically turn on when you put them on 6 VOL Volume control Use to adjust the volume 7 Ear pad right 8 POWER indicator By pulling up the self adjusting band the in...

Page 4: ...e 7 2 8 HANGER L Page 7 2 10 HANGER LID L Page 8 2 9 WIRING ON THE LEFT SIDE Page 8 2 11 WIRING ON THE SW BOARD Page 9 2 12 HOW TO HANG THE TENSDION SPRING Page 9 2 5 WIRING ON THE RIGHT SIDE Page 6 SET 1 ear pad R 4 Removal the solder at 2 places 2 two screws P 2 6x6 3 screw P 2 6x6 5 front plate R assy from RX board driver R CH side housing R assy Note for installation Solder the leads at the pl...

Page 5: ...below with attention to their colors housing R assy to PD2 board cushion B to BATT board and driver L CH to BATT board and driver L CH to driver R CH WHT BLK natural natural natural RED RED GRN GRN 5 hanger R Pay attention to the leads when assembling Pay attention to the leads when assembling 3 2 4 1 two screws P2 6 x 6 hanger lid R projection ...

Page 6: ...Removal the solder at 2 places 2 two screws P 2 6x6 3 screw P 2 6x6 5 front plate R assy from RX board driver R CH side housing L assy Note for installation Solder the leads at the places shown below with attention to their colors natural natural GRN GRN RED Connect a green lead to the marked one of the driver terminals ...

Page 7: ... board to SW board to driver L CH housing L assy Note for installation Solder the leads at the places shown below with attention to their colors natural natural RED RED RED GRN GRN 2 3 4 5 hanger L Pay attention to the leads when assembling Pay attention to the leads when assembling 1 two screws P2 6 x 6 hanger lid L projection ...

Page 8: ...8 MDR IF4000 2 9 WIRING ON THE LEFT SIDE 2 10 HANGER LID L RD2 board L CH front RD1 board L CH rear 3 head band hanger lid L 1 screw P2 6 x 6 2 screw P2 6 x 6 ...

Page 9: ...RD 2 12 HOW TO HANG THE TENSION SPRING head band cushion B SW board SW board suspender assy suspender assy S701 housing L assy hanger lid L tension spring Note for installation Insert the end of the suspender assy under the S701 on SW board ...

Page 10: ...put impedance 10 MΩ Voltage variations may be noted due to normal produc tion tolerances Waveforms are taken with a oscilloscope Voltage variations may be noted due to normal produc tion tolerances Circled numbers refer to waveforms Signal path F ANALOG J RF NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS For printed wiring boards Note X parts extracted from the component side Y parts extrac...

Page 11: ...ULATOR DATA BUS OUTPUT I F SID GCA BPF Q302 MUTE RV201 IC302 HEADPHONE AMP IC301 HEADPHONE AMP Q301 MUTE Q101 MUTE DRIVE 5 8 SP001 SPEAKER R CH 9 4 VOUTL 5 8 SP002 SPEAKER L CH 1 VOUT 2 VDD IC501 1 5V REGULATOR IC503 2 8V DC DC CONVERTOR 5 VOUT OUT LX D601 D501 D502 POWER S602 S701 S701 AUTO ON OFF S601 2 VIN 1 2 1 5V 2 5V IC502 2 5V REGULATOR 5 VOUT 1 VIN Q601 602 B SWITCH IC601 LEVEL DETECT BATT...

Page 12: ...05 R308 C302 Q301 L301 R302 Q302 C301 C308 IC301 L302 R301 C202 C201 R201 RV201 R202 C203 L106 R106 D102 D101 Q101 X101 IC501 C509 R501 C501 C130 C303 C312 C307 C316 IC102 C315 C205 C306 C502 IC001 VOL POWER 2 5V GND B D407 D405 D403 D401 D402 D404 D406 D408 11 11 1 864 936 11 11 1 864 936 11 11 1 864 939 11 11 1 864 939 11 11 1 864 938 11 11 1 864 938 A BATT BOARD Page 13 GRN NAT RED R NAT R RED ...

Page 13: ...ATT CHARGE TERMINAL CHG C602 C504 IC502 C505 IC503 C605 D501 C503 2 5V GRN NAT RED GRN B L501 S601 BATT DET S602 BATT DET S701 AUTO ON OFF BAT101 RECHARGEABLE BATTERY BP HP550 1 2V 550mAh 2PCS 11 11 1 864 935 11 11 1 864 937 BATT A RX BOARD Suffix 11 Page 12 RX BOARD Suffix 12 Page 25 BATT BOARD SW BOARD 2 3 4 5 6 7 A 1 B C D E F Ref No Location D501 B 3 D601 E 4 IC502 D 3 IC503 B 3 IC601 E 3 Q601...

Page 14: ... NI MH 1 0 01 2 2 100k 1k 10k 1M 0 01 100 10V 0 1 RB161M 20FTR 100 10V 4 7 10 10V 4 7 10 10V 0 1 10k 1 0 1 10 10V 100p 10k UN2225 TX MUTE UN2225 TX MUTE 10 10V 10k 10k 10 16V 1SS355TE 17 10k 10 10V 1 10k 1SS355TE 17 0 022 BU4223G RESET 4 7k 0 1 0 1 22 6 3V 0 1 3 3k 820 0 01 0 1 0 1 1 1SS355TE 17 1SS355TE 17 0 1 0 1 0 001 0 1 0 1 0 1 0 1 0 1 1k 10k 0 1 XC62HR1502MR 1 5V REG 0 1 47 4V 0 1 47 4V 0 1 ...

Page 15: ...ADAVS ADAVD ADVRL ADVIN VSS TEST4 VDDE OSCI VSS CSOD SRDT SWDT XSCEN SCLK SCMODE TEST3 TEST2 TEST1 TEST0 OSCO A D CONVERTER DEMODULATOR ERROR CORRECTOR OUTPUT I F CLOCK SELECTOR BUFFER RAM CLOCK GENERATOR CONTROLLER PLL 6 7 8 9 10 XSM SMCK VDDE VSS 2 3 4 5 MST VDDE VSS XRST DIFM0 1 11 12 13 14 DIFM1 DTSEL 15 16 APX EXTCK 32 31 TEST5 TEST6 49 50 56 57 BCK RCLK TXOUT RINFO 54 55 60 61 VDDI LRCK RCS ...

Page 16: ...REF2 VCC2 AGCIREF3 AGCCAP1 11 10 9 8 7 6 5 4 3 2 1 VOUT15 GNDR 12 VREGIN GNDR GNDS A GCIN GNDI IN VCCI SIS GNDMOS A GCIREF1 BIAS FWR S D CONV GCA PREAMP OUTPUT_AMP FWR COMP 0 0 180 180 I V AMP GNDMOS CONT LPF fc 6MHz 4 5MHz HPF fc 3MHz COMP COMP IC301 302 NJM2113V TE2 5 VOUT1 V GND VOUT2 VIN VIN VREF CD 1 2 3 4 6 7 8 ...

Page 17: ... in the last of this parts list 1 2 3 5 4 6 7 8 9 10 11 13 12 not supplied SP002 not supplied SW board A A B B 14 not supplied PD1 board PD2 board not supplied 13 15 16 1 X 2024 577 1 LID ASSY BATTERY 2 3 246 142 01 HOUSING L 3 3 246 148 01 BUTTON 4 2 547 961 01 LID L HANGER 5 2 345 564 01 HANGER L 6 3 257 911 01 SPRING TENSION 7 3 246 151 03 TERMINAL BATTERY 8 3 246 150 02 TERMINAL BATTERY 9 A 10...

Page 18: ...PING 56 3 257 778 01 HOUSING R 57 X 2024 573 1 CAP R ASSY HOUSING 58 2 345 565 01 HANGER R 59 3 246 141 71 LID R HANGER 60 3 246 137 01 BAND HEAD 61 X 3383 905 2 CUSHION ASSY HEAD 62 4 966 791 01 STOPPER UPPER 63 4 966 792 01 STOPPER LOWER 64 3 252 068 01 CUSHION B SP001 1 542 593 11 DRIVER 040F020 51 52 54 64 53 56 57 59 58 60 61 62 64 62 63 63 54 not supplied PD2 board not supplied not supplied ...

Page 19: ... 1 165 884 91 CERAMIC CHIP 2 2uF 10 6 3V C603 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C604 1 162 970 11 CERAMIC CHIP 0 01uF 10 25V C605 1 125 837 91 CERAMIC CHIP 1uF 10 6 3V DIODE D501 6 500 220 11 DIODE RB161M 20FTR D601 8 719 058 24 DIODE RB501V 40TE 17 IC IC502 6 705 692 01 IC XC6219B252MR IC503 6 707 196 01 IC XC6371A281PR IC601 6 702 083 01 IC XC61CN1902NR COIL L501 1 410 645 31 INDUCTOR 100u...

Page 20: ...5 50V C302 1 104 851 11 TANTAL CHIP 10uF 20 10V C303 1 162 927 11 CERAMIC CHIP 100PF 5 50V C304 1 104 851 11 TANTAL CHIP 10uF 20 10V C305 1 104 912 11 TANTAL CHIP 3 3uF 20 16V C306 1 137 934 91 TANTAL CHIP 47uF 20 10V C307 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C308 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C309 1 162 917 11 CERAMIC CHIP 15PF 5 50V C310 1 104 851 11 TANTAL CHIP 10uF 20 10V C311 1 104...

Page 21: ...2 1 216 821 11 METAL CHIP 1K 5 1 10W R301 1 216 843 11 METAL CHIP 68K 5 1 10W R302 1 216 833 11 METAL CHIP 10K 5 1 10W R306 1 216 843 11 METAL CHIP 68K 5 1 10W R307 1 216 833 11 METAL CHIP 10K 5 1 10W R308 1 216 833 11 METAL CHIP 10K 5 1 10W R501 1 216 833 11 METAL CHIP 10K 5 1 10W R502 1 216 817 11 METAL CHIP 470 5 1 10W VARIABLE RESISTOR RV201 1 223 517 11 RES VAR CARBON 50K 50K VOL VIBRATOR X10...

Page 22: ...22 MDR IF4000 MEMO ...

Page 23: ...SERVICE MANUAL SUPPLEMENT 1 File this Supplement with the Service Manual Subject SUFFIX CHANGE OF RX BOARD US Model Canadian Model AEP Model E Model Ver 1 1 9 879 301 81 MDR IF4000 ...

Page 24: ... schematic diagram of new type and changed parts list are described in this Supplement 1 Refer to original service manual 9 879 301 02 previously issued for the other information NEW TYPE IDENTIFICATION 1 864 936 11 Refer to original service manual 1 864 936 12 Refer to supplement 1 RX BOARD SIDE B ...

Page 25: ...C102 L103 C101 R502 L303 C113 C304 D104 R112 C117 D103 R107 C003 C017 C005 C126 R109 C010 C008 R111 C118 C001 C013 C016 C012 IC101 C014 C011 C002 R003 C111 R004 L002 C006 R001 R002 C115 C004 C015 L001 C009 L108 R108 L003 L304 R306 L306 C309 C317 IC302 L305 R308 C302 Q301 L301 R302 Q302 C301 C308 IC301 L302 R301 C202 C201 R201 C205 R202 C203 L106 R106 D102 D101 Q101 X101 IC501 C509 R501 C501 C130 C...

Page 26: ...1 IC101 BATT DET RB501V 40TE 17 BATT DET NI MH NI MH 1 0 01 2 2 100k 1k 10k 1M 0 01 100 10V 0 1 RB161M 20FTR 100 10V 4 7 10 10V 4 7 10 10V 0 1 10k 1 0 1 10 10V 100p 10k UN2225 TX MUTE UN2225 TX MUTE 10 10V 10k 10k 10 16V 1SS355TE 17 10k 10 10V 1 C132 0 1 10k 1SS355TE 17 0 022 BU4223G RESET 4 7k 0 1 0 1 22 6 3V 0 1 3 3k 820 0 01 0 1 0 1 1 1SS355TE 17 1SS355TE 17 0 1 0 1 0 001 C131 0 1 0 1 0 1 0 1 0...

Page 27: ...F 10 16V C111 1 162 917 11 CERAMIC CHIP 15PF 5 50V C112 1 125 837 91 CERAMIC CHIP 1uF 10 6 3V C113 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C115 1 162 917 11 CERAMIC CHIP 15PF 5 50V C116 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C117 1 104 851 11 TANTAL CHIP 10uF 20 10V C118 1 125 837 91 CERAMIC CHIP 1uF 10 6 3V C119 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C120 1 107 826 11 CERAMIC CHIP 0 1uF 10 16V C12...

Page 28: ... DTC144EE Q301 8 729 043 69 TRANSISTOR UN2225 TX S0 Q302 8 729 043 69 TRANSISTOR UN2225 TX S0 RESISTOR R001 1 216 825 11 METAL CHIP 2 2K 5 1 10W R002 1 216 821 11 METAL CHIP 1K 5 1 10W R003 1 216 839 11 METAL CHIP 33K 5 1 10W R004 1 216 823 11 METAL CHIP 1 5K 5 1 10W R101 1 216 821 11 METAL CHIP 1K 5 1 10W R102 1 216 821 11 METAL CHIP 1K 5 1 10W R103 1 216 821 11 METAL CHIP 1K 5 1 10W R104 1 218 6...

Page 29: ...29 MDR IF4000 MEMO ...

Page 30: ...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 2004 11 New 1 1 2005 02 Addition of US Canadian and AEP models Supplement 1 Suffix change of RX board ECA76661 ...

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