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TMR-RF915R/RF945R

SERVICE MANUAL

TRANSMITTER

SPECIFICATIONS

US Model

Canadian Model

TMR-RF915R is the component model block one in the MDR-RF915RK.
TMR-RF945R is the component model block one in the MDR-RF945RK.

9-873-139-11

2001E0200-1

© 2001.5

Sony Corporation

Personal Audio Company

Shinagawa Tec Service Manual Production Group

Ver 1.0  2001. 05

Photo : TMR-RF945R

MDR-RF915RK MDR-RF945RK

Wireless Stereo Headphones MDR-RF915R

MDR-RF945

Transmitter

TMR-RF915R

TMR-RF945

COMPONENT MODEL NAME FOR MDR-RF915RK/
MDR-RF945RK

General

Carrier frequency

913.5 – 914.5 MHz

Channel

Ch1, Ch2, Ch3

Modulation

FM stereo

Frequency response

20 – 20,000 Hz

Transmitter

Power source

DC 9 V: supplied AC power
adaptor

Audio input

phono jacks/stereo mini jack

Dimensions

Approx. 150 mm dia 

X

 108 mm

(6 

X

 4

1

/

3

 in.) (w/h)

Mass

Approx. 190 g (6.7 oz.)

Design and specifications are subject to change without
notice.

www. xiaoyu163. com

QQ 376315150

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TEL 13942296513

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TEL  13942296513  QQ  376315150  892498299 

TEL  13942296513  QQ  376315150  892498299 

http://www.xiaoyu163.com

http://www.xiaoyu163.com

Summary of Contents for TMR-RF915R

Page 1: ... RF915R TMR RF945 COMPONENT MODEL NAME FOR MDR RF915RK MDR RF945RK General Carrier frequency 913 5 914 5 MHz Channel Ch1 Ch2 Ch3 Modulation FM stereo Frequency response 20 20 000 Hz Transmitter Power source DC 9 V supplied AC power adaptor Audio input phono jacks stereo mini jack Dimensions Approx 150 mm dia X 108 mm 6 X 41 3 in w h Mass Approx 190 g 6 7 oz Design and specifications are subject to...

Page 2: ...parts which through functioning show obvious signs of deterioration Point them out to the customer and recommend their replacement SAFETY CHECK OUT After correcting the original service problem perform the following safety checks before releasing the set to the customer 5 Check the B voltage to see it is at the values specified 6 Flexible Circuit Board Repairing Keep the temperature of the solderi...

Page 3: ... Four screws P 2 8 Cabinet upper 2 2 2 TX BASE BOARD 2 TX BASE board Cabinet assy lower 1 www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 4: ...15R RF945R set Frequency counter Pilot signal Modulation Check and Adjustment 1 Set the channel to CH2 2 An electric wave is output for 5or 10 minutes when OFF to ON a power supply Power indicator will ON 3 Measure the center terminal of RV403 using an digital volt meter AC range and make sure the value is 2 to 2 5mVrms If the measured value is other than the specified value adjust to 2 to 2 5mVrm...

Page 5: ...MOD IN ANT 5V B 5V VCO401 VCO UNIT I O V MODULATION CHANNEL SET Q408 S402 CHANNEL 1 2 B 5V 3 Q402 405 CHARGE TERMINAL TO MDR RF915R RF945R J404 DC IN 9V POWER ON OFF Q406 407 R ch is omitted due to same as L ch Signal path L AUDIO F FM 4 1 BLOCK DIAGRAMS SECTION 4 DIAGRAMS w w w x i a o y u 1 6 3 c o m Q Q 3 7 6 3 1 5 1 5 0 9 9 2 8 9 4 2 9 8 T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 ...

Page 6: ... 1ES MTZ 77 2 0B MA77 MA77 0 19KLPF 19KLPF 2SC2712L 2SC2712L KTA1266 GR 2SC2712L 2SC2712L 33k 51 33k 1k 2 2k 33k 51 33k 1k 2 2k 100k 3 3k 220 3 3M 100k 3 3k 220 680 10k 10k 4 7k 2 2M 22k 220k 1k 1 2k 1k 22k 1k 1 2k 4 7k 1k 4 7k 1k 22k 4 7k 470 620 22k 4 7k 38K 0 BA3308F ANTENNA SLR342MGT 0 01 11ES2 TA1B 2p 1 10p 100p 100p 10 16V 1 0 0056 0 0056 1 10 16V 2 2 50V 0 1 100p 10 16V 2 2 50V 0 001 0 001 ...

Page 7: ...IN B A ANT401 ANTENNA S401 NOISE FILTER OFFTON S402 CHANNEL 1t2t3 1 2 3 Ref No Location D401 E 4 D402 E 4 D403 B 4 D404 E 2 D405 E 3 D406 D 3 D408 D 5 D409 D 4 D410 D 4 IC401 C 2 IC402 B 5 IC403 D 4 Q401 D 2 Q402 D 3 Q404 C 5 Q405 D 3 Q406 D 4 Q407 D 3 Q408 C 5 Semiconductor Location Note X parts extracted from the component side Pattern from the side which enables seeing 4 3 PRINTED WIRING BOARD ...

Page 8: ...046 687 41 CABINET UPPER RF915R 1 3 046 687 51 CABINET UPPER RF945R 2 3 049 800 01 CUSHION ANTENNA 3 3 046 690 01 TUBE LIGHT GUIDE 4 A 3062 560 A TX BASE MOUNTED PC BORAD A 5 X 3380 840 1 CABINET ASSY LOWER RF915R US 5 X 3380 841 1 CABINET ASSY LOWER RF945R US 5 X 3380 846 1 CABINET ASSY LOWER RF915R CND 5 X 3380 847 1 CABINET ASSY LOWER RF945R CND 6 4 984 729 01 FOOT RUBBER 7 3 046 689 01 TERMINA...

Page 9: ...0uF 20 16V C452 1 126 933 11 ELECT 100uF 20 16V C453 1 126 157 11 ELECT 10uF 20 16V C454 1 163 251 11 CERAMIC CHIP 100PF 5 50V C455 1 163 227 11 CERAMIC CHIP 10PF 0 50PF 50V C457 1 163 003 11 CERAMIC CHIP 330PF 10 50V C458 1 126 157 11 ELECT 10uF 20 16V C462 1 163 251 11 CERAMIC CHIP 100PF 5 50V C466 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V C468 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V C469 1 163 03...

Page 10: ... 10W R449 1 216 081 00 METAL CHIP 22K 5 1 10W R452 1 216 081 00 METAL CHIP 22K 5 1 10W R453 1 216 117 00 METAL CHIP 680K 5 1 10W R454 1 216 089 91 RES CHIP 47K 5 1 10W R455 1 216 049 11 RES CHIP 1K 5 1 10W R456 1 216 051 00 METAL CHIP 1 2K 5 1 10W R457 1 216 065 91 RES CHIP 4 7K 5 1 10W R458 1 216 049 11 RES CHIP 1K 5 1 10W R459 1 216 081 00 METAL CHIP 22K 5 1 10W R461 1 216 065 91 RES CHIP 4 7K 5...

Page 11: ...w xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

Page 12: ... on the revised page allows you to jump to the next revised page Ver Date Description of Revision 1 0 2001 05 New www xiaoyu163 com QQ376315150 9 9 2 8 9 4 2 9 8 TEL 13942296513 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http www xiaoyu163 com http www xiaoyu163 com ...

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