TMR-RF845R AEP Model UK Model SERVICE MANUAL TRANSMITTER SPECIFICATIONS Headphones MDR-RF845R Transmitter TMR-RF845R TMR-RF845R is the component model block one in the MDR-RF845RK. COMPONENT MODEL NAME FOR MDR-RF845RK General Carrier frequency 863.5 – 864.5 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 × 108 mm (6 × 4 1/3 in.) (w/h) Mass Approx. 190 g (6.2 oz.) Design and specifications are subject to change without notice. Ver 1.0 2000. 07 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 GENERAL DC IN 9V OFF ON FILTER NOISE 1 2 3 CHANNEL R B A L AUDIO IN Setting up the transmitter 1 Connect the transmitter to audio/video equipment. Select one of the hookups below depending on the jack type: A To connect to a headphones jack Transmitter Left channel (white) Right channel (red) Unimatch plug adaptor (supplied) CD Walkman, MD Walkman, WALKMAN*, VCR, etc. to headphones jack (stereo mini jack) Connecting cord (supplied) to AUDIO IN A jacks to headphones jack (stereo phone jack) This section is extracted from instruction manual. 1. Check the area of your repair for unsoldered or poorly- soldered connections. Check the entire board surface for solder splashes and bridges. 2. Check the interboard wiring to ensure that no wires are "pinched" or contact high-wattage resistors. 3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement. 4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement. 5. Check the B+ voltage to see it is at the values specified. 6. Flexible Circuit Board Repairing • Keep the temperature of the soldering iron around 270˚C during repairing. • Do not touch the soldering iron on the same conductor of the circuit board (within 3 times). • Be careful not to apply force on the conductor when soldering SAFETY CHECK-OUT After correcting the original service problem, perform the following safety checks before releasing the set to the customer. 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 DISASSEMBLY 2-1. CABINET (UPPER) 2-2. TX-BASE BOARD 1 Four screws (P 2 × 8) Cabinet (upper) 2 2 TX-BASE board Cabinet assy, lower 1 Note : Follow the disassembly procedure in the numerical order given. 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 — Setting : SECTION 3 ELECTRICAL ADJUSTMENTS Send Frequency Check 1. Set the noise filter SW to OFF. 2. Input a signal of 1 kHz 40 mVrms to only the L-CH (J402). 3. Connect a telescopic antenna to the frequency counter input and extend the antenna to a length of approximately 8 cm. 4. Place TX-BASE board close to the frequency counter, then mea- sure the frequencies of CH1, CH2 and CH3 and make sure the values are as follows: CH1 : 863.5 MHz ± 40 kHz CH2 : 864.0 MHz ± 40 kHz CH3 : 864.5 MHz ± 40 kHz When the frequency is not satisfied the specified value, exchange vco unit. When completed with replacement, recheck the frequecies of CH1, CH2 and CH3. [TK-BASE BOARD] (Component side) AF signal generator Telescopic antenna 8 cm L-CH (J402) TMR-RF875R set TMR-RF875R set Frequency counter Pilot signal Modulation Check and Adjustment 1. Set the channel to CH2. 2. No signal input (The operating time in this case is limited to 4 or 5 minutes.) 3. Measure the movable terminal of RV403 using an digital volt- meter (AC range) and make sure the value is 1.6mVrms ± 0.1mV. If the measured value is other than the specified value, adjust to 1.6mVrms ± 0.1mV by turning the RV403 on the TX-BASE board. Connection points and Adjustment Location : S402 J402 (L-CH) (R-CH) CH3 ←CH2 ←CH1 VCO UNIT RV403 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 TMR-RF845R 4-1. BLOCK DIAGRAM — 5 — — 6 — SECTION 4 DIAGRAMS J401 S401 NOISE FILTER NOISE FILTER INPUT AMP CH1 AMP BUFFER BUFFER Q401 RECT D404,405 2V D408 INPUT DET DIVIDER BUFFER OSC AMP TIME DEVISION MPX AUDIO IN B J402 A OFF | ON S402 CHANNEL L R R-CH R-CH R-CH 1 9 8 13 10 12 11 6 7 9 15 7 6 CH2 AMP 14 X401 38kHz RV403 MOD IN CE DI CL CE DI CL VS 16 5V VCO CONTROLLER IC404 IC401 LPF IC403 STEREO MPX IC405(1/2) IC405(2/2) +5V REG SWITCH Q404 +4V Q402 POWER OFF DET IC402 ANT 5V B+ T-OUT ANT401 D401 D402 J404 DC IN 9V CHARGE POWER CHG 1 2 3 VCO UNIT • Signal path. : AUDIO 16 Note on Printed Wiring Board: • X : parts extracted from the component side. • b : Pattern from the side which enables seeing. 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. • All resistors are in Ω and 1/4 W or less unless otherwise specified. • ¢ : internal component. • A : B+ Line. • H : adjustment for repair. • Power voltage is dc 9 V and fed with regulated dc power supply from battery terminal. • Voltages are dc with respect to ground under no-signal conditions. • Voltages are taken with a VOM (Input impedance 10 MΩ). Voltage variations may be noted due to normal production toler- ances. • Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production toler- ances. • Circled numbers refer to waveforms. • Signal path. L: AUDIO 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 TMR-RF845R 4-2. SCHEMATIC DIAGRAM — 7 — — 8 — 220 330p 100k r r 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 TMR-RF845R 4-3. PRINTED WIRING BOARD — 9 — — 10 — Ref. No. Location D401 D-3 D402 D-3 D403 A-4 D404 D-2 D405 D-2 D407 B-3 D408 D-4 D410 B-4 IC401 B-2 IC402 B-4 IC403 D-4 IC404 B-3 IC405 D-2 Q401 D-1 Q402 B-4 Q404 B-4 • Semiconductor Location TX-BASE BOARD 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 — 11 — — 12 — SECTION 5 EXPLODED VIEWS NOTE: • -XX, -X mean standardized parts, so they may have some differences 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. • Accessories and packing materials are given in the last of this parts list. Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks 1 3-046-687-01 CABINET (UPPER) 2 3-049-800-01 CUSHION, ANTENNA 3 3-046-690-01 TUBE, LIGHT GUIDE * 4 A-4542-645-A TX-BASE BOARD, COMPLETE Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks SECTION 6 ELECTRICAL PARTS LIST 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. • Items marked “*” are not stocked since they are seldom required for routine service. Some delay should be anticipated when ordering these items. • CAPACITORS: uF: µF • RESISTORS All resistors are in ohms. METAL: metal-film resistor METAL OXIDE: Metal Oxide-film resistor F: nonflammable • COILS uH: µH • SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD... When indicating parts by reference number, please include the board name. * A-4542-645-A TX-BASE BOARD, COMPLETE *********************** * A-4542-646-A TX-VCO UNIT (VCO) < ANTENNA > ANT401 4-213-164-01 TERMINAL, ANTENNA < CAPACITOR > C403 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C406 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C407 1-126-961-11 ELECT 2.2uF 20.00% 50V C413 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C416 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C417 1-126-961-11 ELECT 2.2uF 20.00% 50V C421 1-124-234-00 ELECT 22uF 20% 16V C422 1-126-934-11 ELECT 220uF 20.00% 16V C423 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C425 1-163-037-11 CERAMIC CHIP 0.022uF 10% 25V C426 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V C427 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V C428 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C429 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C430 1-124-259-11 ELECT 4.7uF 20.00% 16V C431 1-126-157-11 ELECT 10uF 20% 16V C432 1-163-018-00 CERAMIC CHIP 0.0056uF 5% 50V C433 1-164-346-11 CERAMIC CHIP 1uF 16V C435 1-163-038-00 CERAMIC CHIP 0.1uF 25V C436 1-126-157-11 ELECT 10uF 20% 16V C438 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C441 1-126-157-11 ELECT 10uF 20% 16V C442 1-163-018-00 CERAMIC CHIP 0.0056uF 5% 50V C443 1-164-346-11 CERAMIC CHIP 1uF 16V C444 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C445 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C451 1-124-635-00 ELECT 220uF 20.00% 6.3V C452 1-163-038-00 CERAMIC CHIP 0.1uF 25V C453 1-126-157-11 ELECT 10uF 20% 16V C454 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C455 1-163-227-11 CERAMIC CHIP 10PF 0.50PF 50V C457 1-163-003-11 CERAMIC CHIP 330P 50V C458 1-126-157-11 ELECT 10uF 20% 16V C462 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C465 1-163-009-11 CERAMIC CHIP 0.001uF 10% 50V C466 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V C468 1-163-038-00 CERAMIC CHIP 0.1uF 25V C470 1-126-382-11 ELECT 100uF 20.00% 16V C472 1-163-243-11 CERAMIC CHIP 47PF 5.00% 50V C474 1-164-346-11 CERAMIC CHIP 1uF 16V C475 1-124-635-00 ELECT 220uF 20.00% 6.3V C476 1-126-382-11 ELECT 100uF 20.00% 16V C478 1-163-038-00 CERAMIC CHIP 0.1uF 25V C480 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V C481 1-163-251-11 CERAMIC CHIP 100PF 5.00% 50V C483 1-163-224-11 CERAMIC CHIP 7PF 0.25PF 50V C488 1-163-021-91 CERAMIC CHIP 0.01uF 10.00% 50V < DIODE > D401 8-719-059-98 LED SLR-342VC3F (power) D402 8-719-048-87 LED SLR-332MGF03 (chg) D403 8-719-200-82 DIODE 11ES2 D404 8-719-991-33 DIODE 1SS133T-77 D405 8-719-991-33 DIODE 1SS133T-77 D407 8-719-991-33 DIODE 1SS133T-77 D408 8-719-109-54 DIODE RD2.2ES-B2 D410 8-719-982-11 DIODE MTZJ-4.3B < IC > IC401 8-759-998-71 IC BA3308F IC402 8-759-537-90 IC KIA78S05P-TP IC403 8-759-667-59 IC NJM2035M(TE2) IC404 8-759-679-76 IC KMP47C101M-1B54 IC405 8-759-510-73 IC BA10393F-E2 < JACK > J401 1-566-822-21 JACK (B) J402 1-580-441-61 JACK, PIN 2P (A) J404 1-785-066-11 JACK,DC(POLARITY UNIFIED TYPE)(DC IN 9V) < JUMPER > JC418 1-216-295-91 SHORT 0 JC419 1-216-295-91 SHORT 0 JC421 1-216-295-91 SHORT 0 JC422 1-216-296-91 SHORT 0 JC423 1-216-296-91 SHORT 0 JC424 1-216-296-91 SHORT 0 JC426 1-216-296-91 SHORT 0 JC427 1-216-295-91 SHORT 0 JC430 1-216-295-91 SHORT 0 JC431 1-216-295-91 SHORT 0 JC470 1-216-295-91 SHORT 0 < COIL > L401 1-414-234-11 INDUCTOR CHIP 0uH L402 1-414-234-11 INDUCTOR CHIP 0uH L404 1-414-234-11 INDUCTOR CHIP 0uH L405 1-414-234-11 INDUCTOR CHIP 0uH L408 1-419-079-21 COIL (MPX FILTER) 1 2 8 3 4 5 7 #1 #1 #1 5 X-3379-302-1 CABINET ASSY, LOWER 7 4-984-729-01 FOOT, RUBBER 8 3-046-689-01 TERMINAL, CHARGE #1 7-685-105-19 SCREW +P2X8 TYPE2 NON-SLIT TX-BASE • Color Indication of Appearance Parts Example: KNOB, BALANCE (WHITE) . . . (RED) ↑ ↑ Parts of Color Cabinet’s Color 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 Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks — 13 — L409 1-419-079-21 COIL (MPX FILTER) L410 1-419-662-31 COIL, AIR-CORE L413 1-414-234-11 INDUCTOR CHIP 0uH L414 1-414-234-11 INDUCTOR CHIP 0uH L415 1-414-234-11 INDUCTOR CHIP 0uH < TRANSISTOR > Q401 8-729-230-49 TRANSISTOR 2SC2712-YG Q402 8-729-230-49 TRANSISTOR 2SC2712-YG Q404 8-729-045-00 TRANSISTOR KTA1266GR-AT < RESISTOR > R401 1-216-085-00 METAL CHIP 33K 5% 1/10W R403 1-216-018-00 METAL CHIP 51 5% 1/10W R404 1-216-085-00 METAL CHIP 33K 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 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R411 1-216-085-00 METAL CHIP 33K 5% 1/10W R413 1-216-018-00 METAL CHIP 51 5% 1/10W R414 1-216-085-00 METAL CHIP 33K 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 1-216-057-00 METAL CHIP 2.2K 5% 1/10W R421 1-216-097-91 RES-CHIP 100K 5% 1/10W R422 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R423 1-216-033-00 METAL CHIP 220 5% 1/10W R424 1-216-133-00 METAL CHIP 3.3M 5% 1/10W R425 1-216-097-91 RES-CHIP 100K 5% 1/10W R426 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R427 1-216-033-00 METAL CHIP 220 5% 1/10W R428 1-216-045-00 METAL CHIP 680 5% 1/10W R429 1-216-073-00 METAL CHIP 10K 5% 1/10W R430 1-216-073-00 METAL CHIP 10K 5% 1/10W R431 1-216-065-91 RES-CHIP 4.7K 5% 1/10W R432 1-216-129-00 METAL CHIP 2.2M 5% 1/10W R433 1-216-081-00 METAL CHIP 22K 5% 1/10W R434 1-216-105-91 RES-CHIP 220K 5% 1/10W R438 1-216-105-91 RES-CHIP 220K 5% 1/10W R440 1-216-049-91 RES-CHIP 1K 5% 1/10W R441 1-216-033-00 METAL CHIP 220 5% 1/10W R442 1-216-045-00 METAL CHIP 680 5% 1/10W R446 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R447 1-216-214-00 RES-CHIP 4.7K 5% 1/8W R448 1-216-049-91 RES-CHIP 1K 5% 1/10W R449 1-216-081-00 METAL CHIP 22K 5% 1/10W R451 1-216-073-00 METAL CHIP 10K 5% 1/10W R452 1-216-077-00 RES-CHIP 15K 5% 1/10W R453 1-216-073-00 METAL CHIP 10K 5% 1/10W R454 1-216-073-00 METAL CHIP 10K 5% 1/10W R455 1-216-077-00 RES-CHIP 15K 5% 1/10W R456 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R457 1-216-214-00 RES-CHIP 4.7K 5% 1/8W R458 1-216-049-91 RES-CHIP 1K 5% 1/10W R459 1-216-081-00 METAL CHIP 22K 5% 1/10W R460 1-216-086-00 RES-CHIP 36K 5% 1/10W R461 1-216-091-00 METAL CHIP 56K 5% 1/10W R462 1-216-121-91 RES-CHIP 1M 5% 1/10W R463 1-216-085-00 METAL CHIP 33K 5% 1/10W R464 1-216-061-00 METAL CHIP 3.3K 5% 1/10W R466 1-216-081-00 METAL CHIP 22K 5% 1/10W R467 1-216-065-00 METAL CHIP 4.7K 5% 1/10W R469 1-216-097-11 METAL CHIP 100K 0.5% 1/10W R472 1-216-186-00 RES-CHIP 330 5% 1/8W R473 1-216-049-91 RES-CHIP 1K 5% 1/10W R474 1-216-044-00 METAL CHIP 620 5% 1/10W R475 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R476 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R477 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R478 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R479 1-216-051-00 METAL CHIP 1.2K 5% 1/10W R481 1-216-067-11 METAL CHIP 5.6K 5% 1/10W R482 1-216-081-00 METAL CHIP 22K 5% 1/10W R483 1-216-081-00 METAL CHIP 22K 5% 1/10W R484 1-216-081-00 METAL CHIP 22K 5% 1/10W R485 1-216-081-00 METAL CHIP 22K 5% 1/10W R486 1-216-081-00 METAL CHIP 22K 5% 1/10W R489 1-216-079-91 METAL CHIP 18K 5% 1/10W < VARIABLE RESISTOR > RV403 1-241-763-11 RES, ADJ, CARBON 4.7K < SWITCH > S401 1-771-961-11 SWITCH, SLIDE (NOISE FILTER) S402 1-771-962-11 SWITCH, SLIDE (CHANNEL) < VIBRATOR > X401 1-781-850-11 VIBRATOR, CRYSTAL 38kHz ************************************************************* TX-BASE 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 TMR-RF845R — 14 — Sony Corporation Audio Entertainment Group 2000G1646-1 Printed in Japan © 2000.7 Published by PE General Engineering Dept. 9-927-957-11 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