Ver 1.0 1998.06 MDR-RF430RK MDR-RF450RK Wireless Stereo Headphones MDR-RF430 MDR-RF450 Transmitter TMR-RF450R TMR-RF450R MICROFILM TMR-RF450R SERVICE MANUAL AEP Model RF STEREO TRANSMITTER SPECIFICATIONS TMR-RF450R is the component model block one in MDR-RF430RK/RF450RK. COMPONENT MODEL NAME FOR MDR-RF430RK/RF450RK General Carrier frequency 433.40 – 434.40 MHz Channel Ch1, Ch2, Ch3 Modulation FM stereo Frequency response 20 – 20,000Hz (MDR-RF430RK) 18 – 22,000Hz (MDR-RF450RK) Transmitter Power source DC 9V : supplied AC power adaptor Audio input Phono jacks / stereo mini jack Dimensions Approx. 120 mm dia x 290 mm (4 3/4 x 11 1/2 in.) (w/h) Mass Approx. 155g (5.5oz.) Design and specifications are subject to change without notice. www. xiaoyu163. com QQ 376315150 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 – 2 – SECTION 1 DISASSEMBLY Note : Follow the disassembly procedure in the numerical order given. 1-1. TX BOARD REMOVAL 3 8 4 2 1 Screws +P 2x10 7 Remove solder 6 Remove solder 5 TX shield plate Cabinet (Upper) ANT board VCO board TX board Cabinet (Lower) www. xiaoyu163. com QQ 376315150 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 – 3 – SECTION 2 ELECTRICAL ADJUSTMENTS Note : 1. The transmitter section adjustments should be completed before performing the headphones section adjustment. 2. On adjusting the transmitter section, use the headphones as a jig. Transmitter Headphones TMR-RF450R MDR-RF430 MDR-RF450 Setting : Send Frequency Check and Adjustment 1. Set the noise filter SW to OFF. 2. Input a signal of 1kHz 40mVrms to only the L-ch (J403). 3. Connect a telescopic antenna to the frequency counter input and extend the antenna to a length of approximately 13cm. 4. Place TX board close to the frequency counter, then measure the frequencies of CH1, CH2 and CH3 and make sure the values are as follows: CH1 : 433.3 – 433.5MHz CH2 : 433.8 – 434.0MHz CH3 : 434.3 – 434.5MHz If the measured values are other than the values specified above, adjust the frequencies by turning RV402 and RV403 on the TX board. When completed with adjustment, recheck the frequencies of CH1, CH2 and CH3. Connection points and Adjustment Location : TX board (See page 4) Sub-Carrier (L-R) Modulation Check and Adjustment 1. Set the noise filter SW to OFF. 2. Set the channel to CH2. 3. Input a signal of 1kHz 316mVrms to only the L-ch (J403). 4. Measure the pin 1 voltage of the TX board IC403 using an digital voltmeter (AC range) and make sure the value is 220 – 250mVrms. If the measured value is other than the specified value, adjust to 235mVrms by turning the RV401 on the TX board. Connection points and Adjustment Location : TX board (See page 4) 3.4–3.8Vp-p AF signal generator telescopic antenna 13cm L-CH (J403) TMR-RF450R set TMR-RF450R set frequency counter MDR-RF430 MDR-RF450 headphones battery terminal (DC 3V) Sub-Carrier Frequency Check and Adjustment 1. Set the noise filter SW to OFF. 2. Set the channel to CH2. 3. Input a signal of 1kHz 316mVrms to only the L-ch (J403). 4. Connect a frequency counter and an oscilloscope between the Q409 emitter and GND. 5. Set the TX board L-ch (J403) input to OFF (not doing so will cause modulation in the sub-carrier, preventing correct measure- ment) 6. Check to make sure the frequency counter reading is 48 –52kHz. If the measured value is other than the specified value, adjust the frequency to 50kHz by turning the RV405 on the TX board. In addition, check to make sure the oscilloscope waveform is as follows : (Perform the check and adjustment within one minute since the transmitter AUTO OFF function will be activated approximately one minute after setting the transmitter L-ch input to OFF. If the AUTO OFF function activates, set the L-ch input to ON, set TX board to AUTO ON, set the L-ch input again to OFF, then make the check adjustment.) Connection points and Adjustment Location : TX board (See page 4) Main Carrier Modulation Check and Adjustment 1. Set the channel to CH2. 2. Set the noise filter SW to OFF. 3. Input a signal of 1kHz 316mVrms to only the transmitter Lch (J403). 4. Set headphones VOL (RV301) to MIN. 5. Connect an digital voltmeter (AC range) and oscilloscope be- tween IC301 pin @¡ and GND on RX board (headphones). 6. Receive signals by turning headphones TUNING VOL (RV302). 7. First check to make sure that a demodulated waveform of 1kHz is outputted to the oscilloscope, then check to make sure the digital voltmeter (AC range) reading is AC 12 –15mVrms. If the reading is not within the specified range, turn RV404 on the TX board so that the reading is 13.5mVrms. HEADPHONES [ RX BOARD ] (Conductor side) Connection points and Adjustment Location : TX board (See page 4) oscilloscope digital voltmeter (AC range) www. xiaoyu163. com QQ 376315150 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 – 4 – Connection points : Adjustment Location : S402 Channel Select Switch RV403 (R-CH) RV402 (L-CH) S401 Noise Filter ON/OFF Switch J402 (R-CH) RV404 : Main Carrier Modulation Adjustment RV401 : Sub-Carrier (L– R) Modulation Adjustment RV405 : Sub-Carrier Frequency Adjustment Send Frequency Adjustment J403 (L-CH) [TX BOARD] (Component side) [ TX BOARD ] (Conductor side) digital voltmeter (AC range) frequency counter oscilloscope www. xiaoyu163. com QQ 376315150 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 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 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com 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 3 6 7 3 Q Q TEL 13942296513 QQ 376315150 892498299 TEL 13942296513 QQ 376315150 892498299 http://www.xiaoyu163.com – 7 – SECTION 4 EXPLODED VIEW NOTE : • -XX, -X mean standardized parts, so they may have some difference from the original one. • Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • The mechanical parts with no reference number in the exploded views are not supplied. Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1 7-685-106-19 SCREW +P 2X10 TYPE2 NON-SLIT 2 4-994-922-01 CABINET (LOWER) 3 4-984-729-01 FOOT, RUBBER 4 4-993-652-01 BUTTON, OPEN 5 4-994-931-01 BUTTON, POWER 6 4-987-658-02 SPRING, BATTERY COIL 7 4-994-923-01 LID, BATTERY CASE 8 4-994-925-01 CAP, ANTENNA * 9 4-994-924-01 PIPE ANTENNA 10 4-994-921-01 CABINET (UPPER) 11 4-994-928-01 TERMINAL (+), CHARGE 12 7-685-105-19 SCREW +P 2X8 TYPE2 NON-SLIT 13 4-994-930-01 TERMINAL (-), CHARGE * 14 A-4542-512-A TX BOARD, COMPLETE 15 1-670-934-11 ANT BOARD * 16 A-4542-532-A VCO BOARD, COMPLETE L406 1-500-549-11 CORE, FERRITE L406 1 12 12 2 3 4 5 6 7 3 8 10 11 9 13 14 15 16 not supplied not supplied not supplied www. xiaoyu163. com QQ 376315150 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 – 8 – NOTE : • Due to standardization, replacements in the parts list may be different from the parts specified in the diagrams or the components used on the set. • -XX, -X mean standardized parts, so they may have some difference from the original one. • RESISTORS All resistors are in ohms METAL : Metal-film resistor METAL OXIDE :Metal oxide-film resistor F : nonflammable • Items marked “ * ”are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • SEMICONDUCTORS In each case, u : µ , for example : uA.... : µ A.... , uPA.... : µ PA.... uPB.... : µ PB.... , uPC.... : µ PC.... uPD.... : µ PD.... • CAPACITORS uF : µ F • COILS uH : µ H When indicating parts by reference num- ber, please include the board. SECTION 5 ELECTRICAL PARTS LIST Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark TX 1-670-934-11 ANT BOARD ********** ************************************************************ * A-4542-512-A TX BOARD, COMPLETE ******************* 4-994-928-01 TERMINAL (+), CHARGE 4-994-930-01 TERMINAL (-), CHARGE < CAPACITOR > C401 1-104-760-11 CERAMIC CHIP 0.047uF 10% 50V C402 1-119-866-11 CERAMIC CHIP 0.68uF 10% 10V C403 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C405 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C407 1-124-463-00 ELECT 0.1uF 20% 50V C408 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C409 1-124-257-00 ELECT 2.2uF 20% 50V C410 1-131-379-00 TANTALUM 22uF 10% 10V C411 1-104-760-11 CERAMIC CHIP 0.047uF 10% 50V C412 1-119-866-11 CERAMIC CHIP 0.68uF 10% 10V C413 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C414 1-163-251-11 CERAMIC CHIP 100PF 5% 50V C415 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C416 1-126-786-11 ELECT 47uF 20% 16V C417 1-124-257-00 ELECT 2.2uF 20% 50V C418 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C419 1-126-786-11 ELECT 47uF 20% 16V C420 1-124-464-11 ELECT 0.22uF 20% 50V C421 1-163-038-91 CERAMIC CHIP 0.1uF 25V C422 1-163-131-00 CERAMIC CHIP 390PF 5% 50V C423 1-163-131-00 CERAMIC CHIP 390PF 5% 50V C424 1-124-257-00 ELECT 2.2uF 20% 50V C425 1-163-135-00 CERAMIC CHIP 560PF 5% 50V C426 1-126-786-11 ELECT 47uF 20% 16V C427 1-163-021-91 CERAMIC CHIP 0.01uF 10% 50V C428 1-126-382-11 ELECT 100uF 20% 16V C430 1-163-251-11 CERAMIC CHIP 100PF 5% 50V C431 1-163-251-11 CERAMIC CHIP 100PF 5% 50V C432 1-163-251-11 CERAMIC CHIP 100PF 5% 50V C433 1-163-021-91 CERAMIC CHIP 0.01uF 10% 50V C434 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C435 1-126-786-11 ELECT 47uF 20% 16V C436 1-126-162-11 ELECT 3.3uF 20% 50V C437 1-124-261-00 ELECT 10uF 20% 50V C438 1-164-182-11 CERAMIC CHIP 0.0033uF 10% 50V C439 1-126-382-11 ELECT 100uF 20% 16V C440 1-126-786-11 ELECT 47uF 20% 16V C441 1-163-021-91 CERAMIC CHIP 0.01uF 10% 50V < TRIMMER > CT401 1-141-486-11 CAP, ADJ 10PF < DIODE > D401 8-719-066-59 LED SA3511 (POWER Ø ON) D402 8-719-066-60 LED SM3511 (POWER ø OFF/CHG) D404 8-719-991-33 DIODE 1SS133T-77 D405 8-719-991-33 DIODE 1SS133T-77 D406 8-719-109-85 DIODE RD5.1ES-B2 D407 8-719-991-33 DIODE 1SS133T-77 D408 8-719-991-33 DIODE 1SS133T-77 < IC > IC401 8-759-998-71 IC BA3308F IC402 8-759-537-90 IC KIA78S05P-TP IC403 8-759-701-39 IC NJM3404AM < JACK > J401 1-764-270-11 JACK,STEREO MINIATURE(DIA.3.5) (AUDIO IN B) J402 1-784-910-11 JACK, PIN (AUDIO IN A R) J403 1-784-910-21 JACK, PIN (AUDIO IN A L) J404 1-573-667-11 JACK,DC(POLARITY UNIFIED TYPE) (DC IN 9V) < COIL > L401 1-408-096-00 INDUCTOR 470uH L403 1-410-336-31 INDUCTOR 220uH L404 1-500-419-21 INDUCTOR, FERRITE BEAD L405 1-500-419-21 INDUCTOR, FERRITE BEAD L406 1-500-549-11 CORE, FERRITE L411 1-408-096-00 INDUCTOR 470uH < LINE FILTER > LF401 1-411-236-11 FILTER, EMI LF402 1-403-601-21 FILTER < TRANSISTOR > Q401 8-729-119-78 TRANSISTOR 2SC403SP-51 Q403 8-729-045-02 TRANSISTOR KTC3200GR-AT ANT www. xiaoyu163. com QQ 376315150 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 – 11 – Q404 8-729-045-00 TRANSISTOR SBX1639-02 Q405 8-729-045-02 TRANSISTOR KTC3200GR-AT Q406 8-729-045-00 TRANSISTOR SBX1639-02 Q407 8-729-045-02 TRANSISTOR KTC3200GR-AT Q408 8-729-045-02 TRANSISTOR KTC3200GR-AT Q409 8-729-045-02 TRANSISTOR KTC3200GR-AT < RESISTOR > R401 1-216-085-00 METAL CHIP 33K 5% 1/10W R402 1-216-304-11 METAL CHIP 3.3 5% 1/10W R403 1-216-025-91 RES,CHIP 100 5% 1/10W R404 1-216-085-00 METAL CHIP 33K 5% 1/10W R405 1-216-025-91 RES,CHIP 100 5% 1/10W R406 1-216-085-00 METAL CHIP 33K 5% 1/10W R407 1-216-049-91 RES,CHIP 1K 5% 1/10W R408 1-216-049-91 RES,CHIP 1K 5% 1/10W R409 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R410 1-216-065-91 RES,CHIP 4.7K 5% 1/10W R411 1-216-085-00 METAL CHIP 33K 5% 1/10W R412 1-216-304-11 METAL CHIP 3.3 5% 1/10W R413 1-216-025-91 RES,CHIP 100 5% 1/10W R414 1-216-085-00 METAL CHIP 33K 5% 1/10W R415 1-216-025-91 RES,CHIP 100 5% 1/10W R416 1-216-085-00 METAL CHIP 33K 5% 1/10W R417 1-216-049-91 RES,CHIP 1K 5% 1/10W R418 1-216-049-91 RES,CHIP 1K 5% 1/10W R419 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R420 1-216-129-00 METAL CHIP 2.2M 5% 1/10W R421 1-216-081-00 METAL CHIP 22K 5% 1/10W R422 1-216-121-91 RES,CHIP 1M 5% 1/10W R425 1-216-033-00 METAL CHIP 220 5% 1/10W R426 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R427 1-216-097-91 RES,CHIP 100K 5% 1/10W R428 1-216-115-00 METAL CHIP 560K 5% 1/10W R429 1-216-089-91 RES,CHIP 47K 5% 1/10W R430 1-216-133-00 METAL CHIP 3.3M 5% 1/10W R431 1-216-097-91 RES,CHIP 100K 5% 1/10W R432 1-216-081-00 METAL CHIP 22K 5% 1/10W R433 1-216-097-91 RES,CHIP 100K 5% 1/10W R435 1-216-033-00 METAL CHIP 220 5% 1/10W R436 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R437 1-216-085-00 METAL CHIP 33K 5% 1/10W R438 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R439 1-216-085-00 METAL CHIP 33K 5% 1/10W R440 1-216-049-91 RES,CHIP 1K 5% 1/10W R441 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R442 1-216-073-00 METAL CHIP 10K 5% 1/10W R443 1-216-085-00 METAL CHIP 33K 5% 1/10W R444 1-216-073-00 METAL CHIP 10K 5% 1/10W R445 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R446 1-216-049-91 RES,CHIP 1K 5% 1/10W R447 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R448 1-216-093-00 METAL CHIP 68K 5% 1/10W R449 1-216-081-00 METAL CHIP 22K 5% 1/10W R450 1-216-081-00 METAL CHIP 22K 5% 1/10W R451 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R452 1-216-081-00 METAL CHIP 22K 5% 1/10W R454 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R455 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R456 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R457 1-216-025-91 RES,CHIP 100 5% 1/10W R458 1-216-085-00 METAL CHIP 33K 5% 1/10W R460 1-216-029-00 METAL CHIP 150 5% 1/10W R461 1-216-043-91 RES,CHIP 560 5% 1/10W R462 1-216-043-91 RES,CHIP 560 5% 1/10W R463 1-216-037-00 METAL CHIP 330 5% 1/10W R464 1-216-073-00 METAL CHIP 10K 5% 1/10W R465 1-216-073-00 METAL CHIP 10K 5% 1/10W R466 1-216-113-00 METAL CHIP 470K 5% 1/10W R467 1-216-089-91 RES,CHIP 47K 5% 1/10W R468 1-216-049-91 RES,CHIP 1K 5% 1/10W R469 1-216-081-00 METAL CHIP 22K 5% 1/10W R470 1-216-045-00 METAL CHIP 680 5% 1/10W < JUMPER RESISTOR > R423 1-216-295-00 METAL CHIP 0 5% 1/10W < VARIABLE RESISTOR > RV401 1-241-764-11 RES, ADJ, CERMET 10K (SUB CARRIER (L-R) MODULATION FACTOR) RV402 1-241-764-11 RES, ADJ, CERMET 10K (SEND FREQUENCY) RV403 1-238-601-11 RES, ADJ, CARBON 22K (SEND FREQUENCY) RV404 1-241-764-11 RES, ADJ, CERMET 10K (MAIN CARRIER MODULATION) RV405 1-241-762-11 RES, ADJ, CERMET 2.2K (SUB CARRIER FREQUENCY) < SWITCH > S401 1-771-374-11 SWITCH, SLIDE (2C-2P) (NOISE FILTER) S402 1-771-373-11 SWITCH, SLIDE (1C-3P) (CHANNEL) S403 1-771-375-11 SWITCH, PUSH (POWER) ************************************************************ * A-4542-532-A VCO BOARD, COMPLETE ********************* ************************************************************** MISCELLANEOUS *************** L406 1-500-549-11 CORE, FERRITE VCO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark TX www. xiaoyu163. com QQ 376315150 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 – 12 – TMR-RF450R 9-924-919-11 Sony Corporation Personal A&V Products Company 98F027539-1 Printed in Hungary © 1998.6 Published by Quality Engineering Dept. (Shibaura) www. xiaoyu163. com QQ 376315150 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