Sony-STJX4L-tun-sm 电路图 维修手册.pdf

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1、AEP Model UK Model tM $TtnE0/Fn|-Ar TlJ rwl IQUARTZI N,fi Frequency response 40Hz - 12.5kHz +0.2 dB 30 Hz - 15 kHz 1o2 dB Selectivity 80 dB at 300 kHz Capture ratio 1.0 dB AM suppression ratio 60 dB lmage response ratio 80 dB lF response ratio 10OdB Spurious response ratio 100 dB - Continued on page

2、 2 - ATTENTION AU COMPOSANT AYANT RAPPORT u scunrrr LES COMPOSANTS IDENTIFIES PAR UNE TRAME T urue ruenoue I suR LEs DTAGRAMMEs scx- MATrouEs, LEs vuEs cleres ET LA Ltsrg DEs prces soNT cRrrrouEs pouR le scuntr oe FONCTIONNEMENT. NE REMPLACER CES COMPO- sANTs ouE pAR oes prces soNy DoNT LEs NU- nnno

3、s sorur oorurus DANs cE MANUEL ou DANS les suppt-ueNrs puelrs pAR soNy. SONY FM tuner section Tuning range 87.5 MHz - 108 MHz Antenna terminals 300 ohms, balanced 75 ohms, unbalanced Intermediate f requency 10.7 MHz Sensitivity at 46 dB quieting (40 kHz deviation) 4 sV (mono) 43gV (30pV)i (stereo) U

4、sable sensitivity 1.4FV (S/N = 26 dB, 40 kHz deviation) 1.8 sV, 10.3 dBf (lHF) Limiting threshold l sV Signal-to-noise ratio (40 kHz deviation) 80 dB (mono), 75 dB (stereo) Harmonic distortion (40 kHz deviation) 0.08% (mono) ,0.12o/o (stereo) at 100 Hz 0.08% (mono), 0.12o/o (stereo) at 1 kHz 0.1% (m

5、ono), 0.2% (stereo) at 10 kHz lM clistortion (40 kHz deviation) SPECIFICATIONS 0.08% (monol, O.12% (stereo) 45 dB at 100 Hz 50dB (17d8)* at 1 kHz 40 dB at 10 kHz SAFETY.RELATED COMPONNT WARNING! ! COMPONENTS IDENTIFIED BY SHADING AND MARK A oN THE scHEMATrc DTAGRAMS, EXpLoDED VIEWS AND IN THE PARTS

6、LIST ARE CRITTCAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. Seoaration SERVICE MANUAL RadioFans.CN 收音机爱 好者资料库 sT-JX4L RF intermodulation 74 dB (lHF), 88 dB (2.4 MHz) Sub-carrier product ratio 55

7、dB Muting threshold Approx. 25.2 dBl, 10 yY Output level/impedance (75 kHz deviation) 750 mV, 4.7 k ohms Calibrating tone level 50% modulation (37.5 kHz deviation), 400 Hz ( )* measured with the SENS switch engaged MW/LW tuner section Ferrite rod antenna External antenna terminal 54 (50) dB/m (at 23

8、0 kHz) 50 (40)t sV (at 230 kHz) 45 dB (9 kHz) 75 dB (at 230 kHz) ( )r measurd with the SENS switch engagod 46 (42)* dB/m (at 999 kHz) 40 (30)* rV (at 999 kHz) 45 dB (at 999 kHz) General System Power requirements Power consumption Dimensions Weight PLL quartz-locked digital synthesizer system UKmodef

9、 : 24OV ac-lor22OY ac-adjust- able by authorized Sony personnel), 50/60 Hz AEP modef : 22OY ac - lor 24OY ac - adlust- able by authorized Sony personnel), 50/60 Hz 12W Approx. 430 x 55 x 330 mm (w/h/d) (17 x 2rlt x 13 inches) including projecting parts and controls Approx. 3.6 kg (7 lbs 15 oz) net A

10、pprox. 4.1 kg (9 lbs 1 oz) in shipping carfon MODEL lDENTIFICATION - Specification Label - AEPmodel MODEL NO. ST. JX4L FM STEREO/FM.AM TUNER FREQUINCY RANGE FM875-l08MHz MW522-1602kHz L Wl55- 344kHz lF : FM l0.7MHz AM450kHz AC:22QV - 50/60H2 tzW FTZ-PRFNUMMER U185 SERIAL NO. MADE IN JAPAN 4-875-305-

11、OI OUK model MODEL NO. ST-JX4L FM STEREO/FM-AM TUNER FREQUENCY RANGE: FM87.5- l08MHz MW522-l602kHz LW 155 - 344 kHz :FM l0.7MHz AM450kHz 50/60H2 tzWAC:240V- SERIAL NO, MADE IN JAPAN 4-875-306-0I 2- RadioFans.CN 收音机爱 好者资料库 ST.JX4L . THE CERAMIC CAPACITORS This set uses tube-type ceramic capacitors wh

12、ose shape is identical with the carbon resistors. Be careful not to use resistors instead of capacitors in repairing Disc-type ceramic capacitors can be used for replacing those originally used in the set. Two kinds of drilled holes are provided in some patterns for mounting the tube-type and disc-t

13、ype ceramic capacitors. Use appropriate holes where applicable. Silvering on inside of tube forming second electrode. SERVICING NOTES Example: ceramtc t st digit temperature characteilstic tolerance yellow ; 47 l015% wh.ite SL ) 47OpF +5% SL Silvering deposited on outside of tube forming one electro

14、de. multiplier 2nd digit COLOR CODE (in PFI Color lst or 2nd Digit Multipliet Tolerance Temperatur charac- teristac brownI l0 Y red2 1o? D orange J103 yellow410 RH gleen5 blue6 violel7 UJ Elay 8 x30Vox white9 SL black0 100 t207oCH eold l0-t t 5 %V silver t0-? xlVoB 3- RadioFans.CN 收音机爱 好者资料库 ST-JX4L

15、 o Handling Precautions for MOS lCs Generally, the insulation resistance of the oxide layer in MOS IC structures is very high, and the oxide layer is very thin. Because of this, it is possible that the static voltages usually present on clothes and the human body will be enough to generate a potenti

16、al difference across the insulator, high enough to cause a breakdown of the insulating layer. The following precautions should be taken while handling these ICs. (Particular care should be taken under conditions of low humidity.) Precautions in Replacing MOS lCs Store new ICs by inserting them into

17、a urethane- polyester cushion (which is somewhat conduc- tlve), or wrapping it in aluminum foil, so that all the pins are at the same potential. (The ICs should be stored in that manner until mounted on the circuit board.) Fis. A partially conductive unrethane-polyeste r cushion Fis. B aluminum foil

18、 Equalize any potential difference between the clothes, the tools in use, the work bench, the set being worked on, and the packaged IC by touching them all in succession with the hancis or a conductive wire or tool. The following are effective methods for handl- ing ICs that remove the potential dif

19、ference across the oxide layer. . Use a paper clip nrodified by soldering in a wire braid insert. 3. soldered Fig. D Fis. E soldered o I I o I 2 Make sure that there is no solder on the inside clip Check the soldering iron for possible power-line leakage current. Make sure that there is no leakage p

20、ath by con4ecting an ohmmeter to the tip of the soldering iron and the plug as shown in Fig. C. If there is a leakage path, use some other solderins iron. VOM (dl x IO,OOO range) Make sure that all the oins are in contact with the wire braid latt _ the pins will then be at the same f tg. f potentiat

21、.). partially conductive u rethane-polyeste r cushion or aluminum foil wire braid wire braid Fis. 4 - OTake a short length of fine bare wire and wind it around the IC so that it shorts all the pins of the IC, while it is still in the urethane- polyester cushion or aluminum foil. This ensures that al

22、l the pins are at the same potential. fine bare wire (stripped solid hookup wtre, etc.J Precaution while Checking C-MOS lCs The C-MOS ICs (Complementary MOS) are MOS ICs that have their output sections made up of N-channel and P-channel push-pull stages to increase their speed of operation. If the o

23、utput terminal of these ICs comes into contact with B+ or B- voltage, then the FET which is ON at that time will either become shorted or open. This is valid for all the output sections that are connected together by the interconnections. Even the circuits that are physically separated (and not on t

24、he same board) can be destroyed simultaneously. Example: I partially conductive u rethane-polyester cushion or aluminum foil Fis. G o When it is necessary to handle the IC with the fingers, do not touch any pin, and hold the IC at the ends of its plastic-package case as shown in Fig. H- Fis. H Metho

25、d of Mounting Insert the IC while holding it with the modified clip, and solder all the pins with the clip still shorting the pins. (Similarly, solder all the pins while the bare shorting wire is still wound around them.). Remove the clip or the bare shorting wire only after all the pins have been s

26、oldered. lf this line is grounded, or touches B+ or B- bus. . . , the output stage of this lC will be destroyed. Fis. I 5- SECTION 1 OUTLINE 1-1. CONTROLLER 1C503 (1rPD553C-1371: llO (lnput/Output) PORTS FUNCTION PortPin No. of lCFunction PA2 PA3 PBO-3 PCo-3 PDO-3 PFO-3 PGO-l PG2 PG3 PEO PEI PE2 PE3

27、 PHO-3 Pto-2 J ) 36 37-40 2- 5 8-11 t6-19 22-23 24 25 t2 t3 14 15 26-29 30-32 FM Muting ON/OFF Signal. Memory IC Data Input Level is always H at AM mode. See next page. FM/AM Control Output (FM: I, AM: 0) MWLW Control Output (MW: I, LW: 0) Clock Output for PLL/MEMORY IC $ee next page. PLL Latch Outp

28、ut Data Output for PLL MEMORY IC Address Output for Memory IC Mode Control Output for Memory IC 6- 5T-JX4L O SWITCH AND DISPLAY MATRIX 1 0.7MHz I 50k Hz When identitication color of ceramic filter is blck or white, this diode is used. LW changeover OFF Lw, (153-342 kHz) ON LW, (155-344 kHz) kHz (= 1

29、9.6t tt., Switch ing Matrix When identiTication colol ol ceramic filter is black this diode is used CAL TONE CONTROL SENS CONTROL MUTING CONTROL ENFORCED CONTROL 7- ST.JX4L 1-2. BLOCK DIAGRAM LEIEr E L-El-l L! = v .I F g tr IJ l,l g FI E o F : L-CH signal path . -.rrr.r: R_CH signal path - t7 - Semi

30、conductor Lead Layouts 25D880 N, Yl hil n l 2SK30A ,fi, 1S1555 1082 EOA0l-OsR EOA0l-06R HZ6B2L HZ16-2L HZ3G3L cat hode L/ ti tl VP ll- nooe C L O C K GENERTOR BIS DATA REGISTER STATION :MORY Rmr ( t4 w0RDS xr6 ErTs) ! PD553C-073 FM Ceramic Filter Adjustment Identification color of FM ceramic filters

31、 (CFl 0l-l 04) ITUNER BOARDI .- i rF.our ) -_, cFro4qft,tol 1 ;t HHcfil$:FiR #tr ffiffil Llr;u ffi,*-wffiffffi ffLffrq#f,ru ff- rH Ime;nz.j n#a#nJ-ffi. -T giih i-r. o.| I R E1 ;9; dil ? d+ , ;rP.5.; R206:fl2L , / , :iiu; p ,-fi;ff,f i :- r-riry:; Iu11ff ffi1F#ffi *i:,LL t* .*, t:; =*.ffiJ,ffi (OUTPU

32、T BOARD) s TclslsT I _+g* iJJJI i li$lslii lll .!-v. J I I lon r1r T #*- lJe,:- hhru4ffi 5 lo,-l f Il I E;f.ffi# geef,., I w,f f*lfiijjfl iffi J; ; a1 lltffii I I l z t Y t ! l 2 J : I I llFrrr;l: tttl llll 1l I I sTul ffilHJllffi:Y,ffi= -* - *-fl- R55B 22t y D6t3 | oso+ i J T a ,* ou4. lls lro I 1

33、1l I cl l I l l TliTlTTli t l t l t t i l l 6 6 ( rlhllllrrJ rJr rlll (CHANGE SW BOARDI 206 205 203204 20t 202 207 tc505 504 505 tc20l 610 - 609 608 6117 zoa .ro. gg5 C# fff tc504 0 r, u, u?Pt3rurl9 tou !P040r3c !PD40l3c B+ Note on Schematic Diagram .- tt pltors are in pF unless otherwise noted pF:

34、ppF 50WV or less are not indicated except for electrolytics and tantalums. . All resistors are in ohms, r/ W unless otherwise noted ko : IOOOO, Mo : 100O ka . nonflammable resistor . A : internalcomponent r -_l : adjustment f or rePair . . B+ bus. . - - - : B - b u s . . Voltages are dc with respect

35、 to ground unless otherwlse noteo. r Readings are taken under detuned conditions with a VOM (20 ka/v). no mark: FM : A M : FM .STEREO/MUTING: ON position t t I I : Tuned in FM stereo signal o Voltage variations may be noted due to normal produc- Les compasdrrl ruEr!v Ju, r scutitc. Ne les i.,: marqu

36、e I sont titigl-t-lr- ,rhr rc numro , ili,i#;i:pi;i;i* prunt re numro ri sPcif i. :i:li:l:i1i:il:i.i:iii:i:.:i:!ii| iiir, Note: The componen; Jitirita bv shadins and t11! il ,-ai-titit-ioi satety ileplace only with :lli ii frti;b;t spocified. ir iiiiii.iiii:lii:li:liiii:i.,i.:iii:|ii:.lii:iiii:iiii:

37、iiiii:iiiii:iiii:i:ii.,iiiiiili,iiiil:i;.,I E1 MANUAL TUNING (UP) MANUALTUNING (DOWN) AUTO TUNTNG (DOWN) AUTO TUNING (UP) STEREO/MUTING CAL TONE MEMORY FM/MW/LW PRESET (1 _8) s701 s702 s703 s704 s705 s706 s707 s708 s709-716 s801 I r$ : signal Path -20- A Ttc (TUNER BOABPI lc40t cx778 PLL FEIOI FM FR

38、ONTEND AI FM RF AMP fl rryld r L T l=oonl L E T *nr.rr,t, ROO AiII Lf, Itu l l tl tl tl tl tl ll tl tl tl tl tl tl tl ll ll tl u Q 2 F M M I X Rl40 220r 03 BUFFER 04 osc R19 -1 I I I I I I I l_ 30.6V r- c402 )_ o.o22T R409 R42C 2.2k 2.2k 2.q c404 560 0405 i cLi tcl0t LAl235 IF MP iittii-4 !J-rr.- ii

39、rLTtrG- i P G G P G P P P G P P G e 4 3 br 2 o,o cr caLz o6 MUT I e, 6ltl F F HZ30 0605 t v R227 rk O V R2l9 rr Q602 2SCl8l5 TNVERTER ERROR DETECT 5T.JX4L SECTION 5 EXPLODED VIEWS 4-875-004-31 13 .;4-875-017-00 14 4-875-305-00 15 4-875-306-00 16 4-875-319-2r 11 4-875-319-51 1B 4-875-319-tr l9 ;4-875

40、-325-00 20 4-B7s-326-01 21.;4-875-327-07 22 t;4-875-329-00 23 4-875-330-00 24 .;4-87 5-332-00 25.;4-875-333-00 26 4-875-335-00 27 .;4-875-336-02 28.;4-875-337-00 29.;4-875-340-00 30 4-875-341-00 31 4-875-343-00 32 4-875-354-00 33 7-685-1 32-1 1 34 7-685-646-1 1 35 7-685-871-01 36 7-685-871-09 37 7-6

41、85-880-01 3B 9-911-845-XX 39 9-91 1-846-XX 40 9-91 1-863-XX Descri pt i on LABEL, SERIAL NUMBER LABTL (I4ADE IN JAPAN) CLA14P SPACER, IRI4INAL LABTL, CAUTION, I4AIN BUSHING, CORD (AEP).1A81, APPROVAL 4 COUNTRIES SC R EIJ CUSIlION, SPTAKER CAP, POWER KNOB BASE, POliER KNOB PLATE, JACK PLATE (L), SIDE

42、 (AEP).LABEL, r,r0DEL NUT4BER LABEL, r40DEL NUMBTR (UK) KNOB (3), PROGRAM KNOB (6), PROGRAM KN0B (B), PR0GRA4 BRACKET, CHASSIS I,1INDOI, (C), DIGITAL HEAT SINK BASE, TRANSFOR1ER lr0LDER (81), SCALE, DIAL HOUSI, SIGNAL RETAINTR, UBE, INDICATION LABEL (D), INDICATOR CHASSIS, CENTER PLATE, BOTTOM CHASS

43、IS, SUB CAST LABTL, LI/ STLECION I NSULATOR SCREW +P 2.6X5 TYPT2 NON-SLIT SCREt,l +BVTP 3XB TYPE2 N-S SCREl,r +BVTT 3X6 (S ) SCREW +BVTT 3X6 (S ) SCREW +BVTT 4X6 (S ) CUSHION CUSH I ON INSULATOR (TRANSFORMER) COVER, EDGE PANEL ASSY, FBONT MOUNTED PCB, TUNTR KNOB ASSY, POljER FOOT ASSY, 14.F KNOB ASS

44、Y, PRTSET No. 51 52 53 54 55 CAPAC I TORS : All capacitors are in uF. Comnon ca- pacitors are omjtted. Refer to the following lists for thejr part numbers. M F : u F , P F : U U F . RTS I STORS All resistors are in ohms. Common 1/4W, 1/8W and 1/l6W carbon resistors are omitted. Refer to the fol lowi

45、ng I ists for their part numbers. F : nonflammable COILS M M H : m H , U H : u H -27- 56 4-875-040-00 SHEET. pROTECTI0N 51 4-815-042-00 CUSHI0N, LOl,lER 58 4-875-043.OO CUSHION, UPPER 59 4-875-313-OO LABEL (EP), INDICATOR 60 4-875-355-OO INDIVIDUAL CARTON 61 9-910-999-47 LABEL. SEAL 41 42 43 44 45 4

46、6 9-91 1-863-XX A-4322-339-A r;A-43 51 -2 50-A A-4447 -O64-A x-3 70 1 -0 69-0 x-487 5 -3 01 -0 NOTI : Items vith no part number and no des- criptjon are not stocked because they are seldom required for routine service. Items marked are not stocked since they are seldom required for routjne service.

47、Some delay should be antici- pated when ordering these items. Due to standardizatjon, parts with part numbers (a-AAA-aAA-xx or A-AAA-aAA-X) may be different from those used jn the set. The components identified by shading and mark fare critical for safetv.o Replace only with part number speci fied.

48、Les composants identjfi.s Par une trame et une marque/sont critioues oour la sciit. Ne I es rempl acer que par une pice portant le numro spc i fi . ST-JX4L ELECTR I CAL PARTS Ref.No. Part No. Descr ipt.ion 506 r;1-535_120_oo TERMINAT 507 r;1-535-121_oo TERMINAL 508 r;1-535_140_00 BASE POST 19Mt4 (1O

49、MM pIICH) 3p s09 t-536_663_00 rrRr4rNAL eOnno iNilNrii 510 A.t-str-bs4-o0 tuit.cono,piR ,ii,_.i !.ii:! iijjil; iiil5qti3o?,0,_,uou, 5i3 pusn inc-poue;i i:fif ?14 r-553-742-00 srglrgH, nuasril iri-iibil_rorol 515 r;1-560-595-00 TER,trNAL lwrrH ansri- 516 517 518 519 520 521 1-605-474-OO PC BOARD, LED 522 1-605-475_00 pc gonno, potltR s| 523 1-