tmr-rf450r service manual
Contents
1. 8 9 10 11 12 13 14 15 16 17 J UN A vco e Use VCO BOARD is for unit replacement repoir Use it only as reference material THC2 C I l i 1 i d l CIS AIR AIR RB ios COIL COIL 22k et l THC3 C R9 2P 10 l A C20 Lc18 Q3 5p T 2p 2803356 92 RF AMP l 1000 8 D FM L A R m WIRE C l l l 2 2 22 l l 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 2 J ANTENNA eee Se te m OSC Tx BOARD EN J R458 E l BH 9 330 T 0406 ANT BOARD AM KTAI266 GR R468 AUTO ON OFF c402 1C402 L406 T Po SWITCH K1A78S05 REGULATOR l l n429 KTAT266 0R 5 I s f I R421 ds ANE 44e 3X R08 yide e F je 9407 22k ji m 4 _ _ SEN R420 9403 EXE FM 5402 2 2M C407 KTC3200 0R ie E FREQUENCY CHANNEL 0 1 8405 R469 AMP 0 Cil0 m C424 I 50V 1551337 22k 0 5 22 R447 1 2k F 5 2 2 L oe Lal iV 9 sek 50V ide 0 64 ff REGULATDR R446 TK i R457 CT401 l 4 Saf T i jil RV404 100 5403 1 80430 L 4364 Laws R422 Vs RV402 435 10k oa oa P 100 T pio 1858 170k a e caz LL 8406 10k ik A G SC 1551337 30V 10x Thio sov ee oS E 16V MATN CARR TER I D MOBULAT ION OFF B Ll ON l 94012. Ver 1 0 1998 06 TMR RF450R is the component model block one in MDR RF430RK RF450RK TMR RF400R SERVICE MANUAL COMPONENT MODEL NAME FOR MDR RF430RK RF450RK MDR RF430RK MDR RF450RK Wireless Stereo Headphones MDR RF430 MDR RF450 Transmitter TMR RF450R General Carrier frequency Channel Modulation Frequency response Transmitter Power source Audio input Dimensions Mass TMR RF450R SPECIFICATIONS 433 40 434 40 MHz Chl Ch2 Ch3 FM stereo AEP Model 20 20 000Hz MDR RF430RK 18 22 000Hz MDR RF450RK DC 9V supplied AC power adaptor Phono jacks stereo mini jack Approx 120 mm dia x 290 mm 4 3 4 x 11 1 2 in w h Approx 155g 5 5oz Design and specifications are subject to change without notice RF STEREO TRANSMITTER ON Y SECTION 1 DISASSEMBLY Note Follow the disassembly procedure in the numerical order given 1 1 TX BOARD REMOVAL Cabinet Upper VCO board ANT board FI Remove solder o TX board Q Remove solder Q TX shield plate ue Cabinet Lower Q Screws P 2x10 SECTION 2 ELECTRICAL ADJUSTMENTS Note 1 2 The transmitter section adjustments should be completed before performing the headphones section adjustment On adjusting the transmitter section use the headphones as a jig Transmitter Headphone
3. Adjustment Location TX board See page 4 Sub Carrier Frequency Check and Adjustment 1 2 3 4 Set the noise filter SW to OFF Set the channel to CH2 Input a signal of IKHz 316mVrms to only the L ch J403 Connect a frequency counter and an oscilloscope between the Q409 emitter and GND Set the TX board L ch J403 input to OFF not doing so will cause modulation in the sub carrier preventing correct measure ment 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 3 4 3 8Vp p 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 2 3 Set the channel to CH2 Set the noise filter SW to OFF Input a signal of IKHz 316mVrms to only the transmitter Lch 7403 4 Set headphones VOL RV301 to MIN Connect an digital voltmeter AC range and oscilloscope be tween IC301 pin and GND on R
4. KTC 200 GR 9 B i if 25C2458 BL C427 SWITCH L 433 m AUTO ON OFF BET 6 01 7 6 01 a C428 i AMP 1C401 SD 7 100 R440l gt H H BA ALC amp B 9 2 OK 16V dk 3 l S m SUB CARRIER X i LF402 R437 R439 FREQUENCY LF401 C441 R411 R418 R409 4 7k 0 022 R423 R465 2401 J401 33K pee n dk 2 2k N 0 Ra a DOR 7 33k F BR OR BH 4 3 m SA3511 3 91 sai B mar f f Qr ow p R454 POWER z DE o 33k Opoa r IT HO apal 2 28 Q 120 6 6 4 AM 5 BOOT 4 eme MW gt 2 I L ON n ROS Tuus R408 R419 04 1 84 d 0 l 5 l k MIL iv R416 k Ik 2 2k Gn l Cp e R402 5963 agi exe BASSOBF e pacan ag 3 Ki olala LLCAOS cretifi cn ra B jj gt AUBIO IN 3 4 70uH 0 68 NY R470 AS m EL M mul Weg rd kuk G DORT 5 OER 2 7680 DD NUM34044M b2 426 Seb 990 R404 0 aL 9402 J402 RAI zi Tr COP QC 3 Fr tev 7 HS oad Raen NOISE 427 e 0765 149 R4 z 7 33k e EIIETER Ts Mids jidox E 4 8 POWER w 150 CHARGE TERMINAL J A 3403 OFF ae 0s Lease OFF CHG Y Ned i L Qe i cH C42 lc40g R426 0409 33k i RECHARGEABLE ON es 0 68 yo 022 5 KTC3200 6R fl 8 BATTERY AW OO il 1 Z BUFFER H NC AA HJ X2 R412 mn n A ME 3 3 RAS z 3 Ez R413 R415 an 0407 I 100 E 2 7 L R456 C425 100 C4034 b i 47 0 2 2k 7560p l K C421 50V 0 1 02 FOF __ CO o eC o Or OOOO Oe SF e WAVEFORMS Note e All capacitors are in uF unless otherwise no
5. l 4 l 5 C F 2 D 6 E 6 D 6 E 5 F4 F 5 E 4 Note H e 0 parts extracted from the component side e O Through hole Pattern from the side which enables seeing The other layers patterns are not indicated Caution Pattern face side Parts on the pattern face side seen from the Side B pattern face are indicated Parts face side Parts on the parts face side seen from the Side A parts face are indicated 3 1 PRINTED WIRING BOARDS 1 M C 5 401 NOISE FILTER 02 ON OFF AUDIO IN J40i J402 8 R ANT BOARD FM WIRE ANTENNA VCO BOARD SIDE A D 402 CHANNEL CHARGE TERMINAL Ni cd RECHARGEABLE BATTERY NC AA HJIxI Ni cd RECHARGEABLE BATTERY NC AA HJIxI 669 737 Use it only as reference material 0402 l1 OFF CHG TMR RF450R 3 2 SCHEMATIC DIAGRAM
6. 216 073 00 METAL CHIP R443 1 216 085 00 METAL CHIP R444 1 216 073 00 METAL CHIP R445 1 216 061 00 METAL CHIP R446 1 216 049 91 RES CHIP R447 1 216 051 00 METAL CHIP R448 1 216 093 00 METAL CHIP R449 1 216 081 00 METAL CHIP R450 1 216 081 00 METAL CHIP R451 1 216 061 00 METAL CHIP R452 1 216 081 00 METAL CHIP R454 1 216 057 00 METAL CHIP SBX1639 02 KTC3200GR AT SBX1639 02 KTC3200GR AT KTC3200GR AT KTC3200GR AT 33K 2 2K 2 2M 22K 220 3 3K 100K 560K 47K 3 3M 100K 22K 100K 220 3 3K 33K 3 3K 33K 3 3K 10K 33K 10K 3 3K 1K 1 2K 68K 22K 22K 3 3K 22K 2 2K 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Remark Ref No Part No Description R455 1 216 057 00 METAL CHIP 2 2K R456 1 216 057 00 METAL CHIP 2 2K R457 1 216 025 9891 RES CHIP 100 R458 1 216 085 00 METAL CHIP 33K R460 1 216 029 00 METAL CHIP 150 R461 1 216 043 91 RES CHIP 560 R462 1 216 043 91 RES CHIP 560 R463 1 216 037 00 METAL CHIP 330 R464 1 216 073 00 METAL CHIP 10K 1 10W R465 1 216 073 00 METAL CHIP 10K 1 10W 1 10W R466 1 216 113 00 METAL CHIP 470K 1 10W R467 1 216 089 91 RES CHIP 47K 1 10W R468 1 216 049 91 RES CHIP 1K R469 1 216 081 00 METAL CHIP 22K 1 10W R470 1 216 045 00 METAL CHIP 680 1 10W 1 10W JUMPER
7. ECT 47uF 20 16V J401 1 764 270 11 JACK STEREO MINIATURE DIA 3 5 C417 1 124 257 00 ELECT 2 2uF 2096 50V AUDIO IN B J402 1 784 910 11 JACK PIN AUDIO IN A R C418 1 163 037 11 CERAMIC CHIP 0 022uF 10 25V J403 1 784 910 21 JACK PIN AUDIO IN A L C419 1 126 786 11 ELECT 47uF 20 16V J404 1 573 667 11 JACK DC POLARITY UNIFIED TYPE C420 1 124 464 11 ELECT 0 22uF 20 50V DC IN 9V C421 1 163 038 91 CERAMIC CHIP 0 1uF 25V C422 1 163 131 00 CERAMIC CHIP 390PF 5 50V lt COIL gt C423 1 163 131 00 CERAMIC CHIP 390PF 5 50V L401 1 408 096 00 INDUCTOR 470uH C424 1 124 257 00 ELECT 2 2uF 20 50V L403 1 410 336 31 INDUCTOR 220uH C425 1 163 135 00 CERAMIC CHIP 560PF 596 50V L404 1 500 419 21 INDUCTOR FERRITE BEAD C426 1 126 786 11 ELECT 47uF 20 16V L405 1 500 419 21 INDUCTOR FERRITE BEAD C427 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V L406 1 500 549 11 CORE FERRITE C428 1 126 382 11 ELECT 100uF 20 16V L411 1 408 096 00 INDUCTOR 470uH C430 1 163 251 11 CERAMIC CHIP 100PF 5 50V C431 1 163 251 11 CERAMIC CHIP 100PF 5 50V lt LINE FILTER gt C432 1 163 251 11 CERAMIC CHIP 100PF 5 50V C433 1 163 021 91 CERAMIC CHIP 0 01uF 10 50V LF401 1 411 236 11 FILTER EMI LF402 1 403 601 21 FILTER C434 1 163 037 11 CERAMIC CHIP 0 022uF 10 25V C435 1 126 786 11 ELECT 47uF 20 16V lt TRANSISTOR gt C436 1 126 162 11 ELECT 3 3uF 2094 50V C437 1 124 261 00 ELECT 10uF 2096 50V Q401 8 729 119 78 TRANSISTOR 2SC403SP 51 C438 1 164 182 11 CERAMIC C
8. ELECT 47uF 20 16V C441 1 163 021 91 CERAMIC CHIP 0 01uF 1096 50V sj sk ke sb ste sk se le a oe ke ob 2 la ke je a oe dele sje oe 9 2 sb oj oe fe a sj bebe obe la lebe fe ce deje oj sj ke be obe fe che ke obe fe a eoe ok ok A 4542 512 A TX BOARD COMPLETE lt TRIMMER gt sk sk ke ke sl sk sje ok a sk sk ok ke ok ste ok ok kok CT401 1 141 486 11 CAP ADJ 10PF 4 994 928 01 TERMINAL CHARGE 4 994 930 01 TERMINAL CHARGE DIODE CAPACITOR D401 8 719 066 59 LED SA3511 POWER ON D402 8 719 066 60 LED SM3511 POWER O OFF CHG C401 1 104 760 11 CERAMIC CHIP 0 047uF 10 50V D404 8 719 991 33 DIODE 1SS133T 77 C402 1 119 866 11 CERAMIC CHIP 0 68uF 10 10V D405 8 719 991 33 DIODE 188133T 77 C403 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V D406 8 719 109 85 DIODE RD5 1ES B2 C405 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C407 1 124 463 00 ELECT 0 1uF 2096 50V D407 8 719 991 33 DIODE 1SS133T 77 D408 8 719 991 33 DIODE 1SS133T 77 C408 1 163 037 11 CERAMIC CHIP 0 022uF 10 25V C409 1 124 257 00 ELECT 2 2uF 2096 50V I6 C410 1 131 379 00 TANTALUM 22uF 1096 10V C411 1 104 760 11 CERAMIC CHIP 0 047uF 10 50V 10401 8 759 998 71 IC BA3308F C412 1 119 866 11 CERAMIC CHIP 0 68uF 1096 10V 10402 8 759 537 90 IC KIA78S05P TP IC403 8 759 701 39 IC NJM3404AM C413 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C414 1 163 251 11 CERAMIC CHIP 100PF 5 50V lt JACK gt C415 1 163 009 11 CERAMIC CHIP 0 001uF 10 50V C416 1 126 786 11 EL
9. HIP 0 0033uF 10 50V Q403 8 729 045 02 TRANSISTOR KTC3200GR AT Ref No Part No Description Q404 8 729 045 00 TRANSISTOR Q405 8 729 045 02 TRANSISTOR Q406 8 729 045 00 TRANSISTOR Q407 8 729 045 02 TRANSISTOR Q408 8 729 045 02 TRANSISTOR Q409 8 729 045 02 TRANSISTOR RESISTOR R401 1 216 085 00 METAL CHIP R402 1 216 304 11 METAL CHIP R403 1 216 025 91 RES CHIP R404 1 216 085 00 METAL CHIP R405 1 216 025 91 RES CHIP R406 1 216 085 00 METAL CHIP R407 1 216 049 91 RES CHIP R408 1 216 049 91 RES CHIP R409 1 216 057 00 METAL CHIP R410 1 216 065 91 RES CHIP R411 1 216 085 00 METAL CHIP R412 1 216 304 11 METAL CHIP R413 1 216 025 91 RES CHIP R414 1 216 085 00 METAL CHIP R415 1 216 025 91 RES CHIP R416 1 216 085 00 METAL CHIP R417 1 216 049 91 RES CHIP R418 1 216 049 91 RES CHIP R419 1 216 057 00 METAL CHIP R420 1 216 129 00 METAL CHIP R421 1 216 081 00 METAL CHIP R422 1 216 121 91 RES CHIP R425 1 216 033 00 METAL CHIP R426 1 216 061 00 METAL CHIP R427 1 216 097 9891 RES CHIP R428 1 216 115 00 METAL CHIP R429 1 216 089 91 RES CHIP R430 1 216 133 00 METAL CHIP R431 1 216 097 91 RES CHIP R432 1 216 081 00 METAL CHIP R433 1 216 097 91 RES CHIP R435 1 216 033 00 METAL CHIP R436 1 216 061 00 METAL CHIP R437 1 216 085 00 METAL CHIP R438 1 216 061 00 METAL CHIP R439 1 216 085 00 METAL CHIP R440 1 216 049 91 RES CHIP R441 1 216 061 00 METAL CHIP R442 1
10. RESISTOR 2 1 10W 1 10W R423 1 216 295 00 METAL CHIP 0 1 10W VARIABLE RESISTOR 2 1 10W 1 10W RV401 1 241 764 11 RES ADJ CERMET 10K 1 10W 1 10W RV402 1 241 764 11 RV403 1 238 601 11 1 10W RV404 1 241 764 11 RES ADJ CERMET 10K 1 10W 1 10W RV405 1 241 762 11 RES ADJ CERMET 2 2K 1 10W 1 10W lt SWITCH gt 1 10W 1 10W 401 1 771 374 11 SWITCH SLIDE 2C 2P NOISE FILTER 1 10W 402 1 771 373 11 SWITCH SLIDE 1C 3P CHANNEL 1 10W 403 1 771 375 11 SWITCH PUSH POWER 1 10W spe ke ok fe zl sk obe la ste obe ote ok sl obe obe ole sj obe afc fe sk ole ode oe sk obe oe ole ole obe oe ole ala oj a oe a obe ke oe ste obe ke ole akc 2k ofc oe aks oko oeste 2k 2 akc 1 10W 1 10W A 4542 532 A VCO BOARD COMPLETE 1 10W spe ke ke akc 2K ofc ote sje ste ofc oe se ole obe ste ote ke cle 2k ok ake 1 10W 1 10W 1 10W MISCELLANEOUS 1 10W eese sese k k k k se se k k kk 1 10W 1 10W L406 1 500 549 11 CORE FERRITE 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 11 VCO 5 5 5 5 Remark 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W 1 10W SUB CARRIER L R MODULATION FACTOR RES ADJ CERMET 10K SEND FREQUENCY RES ADJ CARBON 22K SEND FREQUENCY MAIN CARRIER MODULATION SUB CARRIER FREQUENCY TMR RF450R Sony Corporation 98F027539 1 E zi z Printed in Hu
11. TYPE2 NON SLIT 10 4 994 921 01 CABINET UPPER 2 4 994 922 01 CABINET LOWER 3 4 984 729 01 FOOT RUBBER 11 4 994 928 01 4 4 993 652 01 BUTTON OPEN 12 7 685 105 19 5 A 994 931 01 BUTTON POWER 13 A 994 930 01 14 A 4542 512 A 6 4 987 658 02 SPRING BATTERY COIL 15 1 670 934 11 ANT BOARD 7 4 994 923 01 LID BATTERY CASE 8 4 994 925 01 CAP ANTENNA 16 A 4542 532 A 9 4 994 924 01 PIPE ANTENNA L406 1 500 549 11 CORE FERRITE 7 ANT TX 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 SECTION 5 ELECTRICAL PARTS LIST 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 u for example uA L A uPA u PA When indicating parts bv reference num ber please include the board e RESISTORS uPB U PB uPC p PC All resistors are in ohms uPD U PD METAL Metal film resistor CAPACITORS METAL OXIDE Metal oxide film resistor uF UF F nonflammable COILS uH u H Ref No Part No Description Remark Ref No Part No Description Remark 1 670 934 11 ANT BOARD C439 1 126 382 11 ELECT 100uF 2096 16V KERERE REE C440 1 126 786 11
12. X board headphones 6 Receive signals by turning headphones TUNING VOL RV302 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 ae RX BOARD Conductor side digital voltmeter um e xus eee agen 9308 e E M gmt asa j at Es oscilloscope n caai eu CHE ise NM Br ee ti B es mis he E cam T Connection points and Adjustment Location a n TX board See page 4 Connection points TX BOARD Conductor side ce E L digital voltmeter AC range OH d D o ta oscilloscope Ot x A frequencv counter Quos TS Adjustment Location TX BOARD Component side J403 J402 L CH R CH S402 Channel Select Switch S401 Noise Filter ON OFF Switch RV402 L CH RV403 R CH Send Frequency Adjustment RV404 Main Carrier Modulation Adjustment RV401 Sub Carrier L R Modulation Adjustment RV405 Sub Carrier Frequency Adjustment NC TE TMR RF450R SECTION 3 DIAGRAMS SEMICONDUCTOR LOCATION Location A F 6 F 7 F 3 G 3 L 4 E 6 D 5 C 5 B E 2 D 5 F 5 H 4
13. ngary 1998 6 APENAII Persona AST Pri Company Published by Quality Engineering Dept Shibaura
14. s MDR RF430 MDR RF450 TMR RF450R Setting AF signal generator set TMR RF450R L CH J403 telescopic antenna frequency counter 13cm TMR RF450R headphones MDR RF430 P MDR RF450 batterv terminal DC 3V Send Frequencv Check and Adjustment 1 2 9 Set the noise filter SW to OFF Input a signal of IKHz 4OmVrms to only the L ch J403 Connect a telescopic antenna to the frequency counter input and extend the antenna to a length of approximately 13cm 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 CHI 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 CHI CH2 and CH3 Connection points and Adjustment Location TX board See page 4 Sub Carrier L R Modulation Check and Adjustment li 2 Set the channel to CH2 3 4 Measure the pin voltage of the TX board IC403 using an Set the noise filter SW to OFF Input a signal of IKHz 316mVrms to only the L ch J403 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
15. ted pF uuF Voltages are dc with respect to ground under no signal 50 WV or less are not indicated except for electrolytics conditions and tantalums Voltages are taken with a VOM Input impedance 10 MQ e All resistors are in Q and 1 4 W or less unless otherwise Voltage variations may be noted due to normal produc specified tion tolerances A internal component Waveforms are taken with a oscilloscope B Line Voltage variations mav be noted due to normal produc je 1 LL adjustment for repair tion tolerances 20 2 usec 20 2 usec Power voltage is dc 9 V and fed with regulated dc power Circled numbers refer to waveforms VOLT DIV 5m V AC Q409 B VOLT DIV 500m V AC supply from external power voltage jack J404 s ur path TIME DIV 10 usec TIME DIV 10 usec 5 6 NOTE e XX X mean standardized parts so they may have some difference from the original one e tems marked are not stocked since they are seldom required for routine service Some delay should be anticipated when ordering these items SECTION 4 EXPLODED VIEW The mechanical parts with no reference number in the exploded views are not supplied not supplied Remark TERMINAL CHARGE SCREW P 2X8 TYPE2 NON SLIT TERMINAL CHARGE TX BOARD COMPLETE VCO BOARD COMPLETE Ref No Part No Description Remark Ref No Part No Description 1 7 685 106 19 SCREW P 2X10
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