Sony MDR-RF415R Service Manual
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Sony MDR-RF415R Service Manual

Sony MDR-RF415R Service Manual

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SERVICE MANUAL
Ver 1.0 2001. 02
MDR-RF415R is the component model block one in the MDR-RF415RK.
COMPONENT MODEL NAME FOR MDR-RF415RK
Headphones
MDR-RF415R
Transmitter
TMR-RF415R
Sony Corporation
9-873-075-11
2001B1600-1
Audio Entertainment Group
© 2001.2
General Engineering Dept.
MDR-RF415R
SPECIFICATIONS
Power source
DC 2.4 V: Built-in rechargeable battery
Mass
Approx. 240 g (8.5 oz.) incl.
built-in rechargeable battery
Built-in Ni-Cd rechargeable battery
Model name
NC-AA
Voltage
1.2 V
Capacity
700 mAh
Design and specifications are subject to change without notice.
AEP Model
HEADPHONES

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  • Page 1 MDR-RF415R SERVICE MANUAL AEP Model Ver 1.0 2001. 02 MDR-RF415R is the component model block one in the MDR-RF415RK. COMPONENT MODEL NAME FOR MDR-RF415RK Headphones MDR-RF415R Transmitter TMR-RF415R SPECIFICATIONS Power source DC 2.4 V: Built-in rechargeable battery Mass Approx. 240 g (8.5 oz.) incl.

  • Page 2: Section 1 General

    MDR-RF415R SECTION 1 This section is extracted from instruction manual. GENERAL Auto power on/off function Turn up the volume to a moderate level When you remove the headphones from your with the VOL control, then tune the head, the power turns off automatically. Do not...

  • Page 3: Section 2 Disassembly

    MDR-RF415R SECTION 2 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 2-1. RX-BASE BOARD 1 Five screws (P 2 × 6) Cover (R), hanger Claw 9 Switch, push (1 key) 8 Remove the two solderings. 6 RX-BASE board Claw 4 Screw (P 2 ×...
  • Page 4 MDR-RF415R Set the lead wires Set the each lead wires as illustrated below. Cover (R), hanger Cover (L), hanger No.205 No.201, No.203 Groove Groove No.203 No.201 Groove No.203 No.201 No.204 No.202 Groove No.202 Groove To the driver (030F032//K). To the driver (030F032//K).

  • Page 5: Electrical Adjustments

    MDR-RF415R SECTION 3 ELECTRICAL ADJUSTMENTS Notes: 3-3. Carrier modulation check Use transmitter with check and adjustment already completed. Set the transmitter CHANNEL switch to 2. On adjusting the headphones section, use the transmitter as a Set the transmitter NOISE FILTER switch to OFF.
  • Page 6 MDR-RF415R Adjustment Location : [RX-BASE BOARD] (Conductor side) IC301 7 IC301 4 IC301 6 RV303 R323 JC324 power L– R–...
  • Page 7 MDR-RF415R SECTION 4 DIAGRAMS • IC BLOCK DIAGRAM 4-1. BLOCK DIAGRAM IC302 LA4533M L302 IF AMP/DECODE RV302 IC301 POWER MUTE 10 MT/SW P/SW VOLw SWITCH CIRCIUT SPEAKER AUDIO AMP AMP1 OUT1 FRONT END L-CH FM IF/ DECODE FM FE IC302...
  • Page 8 MDR-RF415R 4-2. SCHEMATIC DIAGRAM HVU363ATRU TUNE FREE RUN FREQ. IC B/D TMR-RF415R VOLw C345 0.01 0.01 TLSU124 Note on 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 9: Printed Wiring Board

    MDR-RF415R 4-3. PRINTED WIRING BOARD • Semiconductor Location Ref. No. Location D301 D304 D310 IC301 IC302 IC301 RV303 R323 ON/OFF JC324 SWITCH power RV303 TUNE SPEAKER (L-ch) IC302 SPEAKER (R-ch) RECHARGEABLE Ni-cd NC-AA(HJ) 2pcs,2.4V VOLw TO TMR-RF415R (BATTERY CHARGER) Note on Printed Wiring Board: •...

  • Page 10: Section 5 Exploded Views

    MDR-RF415R SECTION 5 SECTION 6 RX-BASE EXPLODED VIEWS ELECTRICAL PARTS LIST NOTE: NOTE: • -XX, -X mean standardized parts, so they may • The mechanical parts with no reference number • Due to standardization, replacements in the • CAPACITORS: •...
  • Page 11 MDR-RF415R RX-BASE Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks < RESISTOR > R327 1-216-085-00 METAL CHIP 1/10W R328 1-216-085-00 METAL CHIP 1/10W R302 1-216-057-00 METAL CHIP 2.2K 1/10W R330 1-216-001-00 METAL CHIP 1/10W R304 1-216-061-00 METAL CHIP 3.3K...

  • Page 12: Revision History

    MDR0-RF415R 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 2001.02...

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