Realistic-STA235B-rec-sm 电路图 维修手册.pdf

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1、ruLtstC. Serulceamuafl ADDENDUM for STA-235B AM /FM STEREO RECEIVER Gatalog Number:31 -2065 This ADDENDUM covers the changes made for B version of the STA-235. For complete coverage of this model, you must refer to both this ADDENDUM and the original Service Manual for the STA-235. cusroM MANUFACTUR

2、ED FoR RADto sHncrA DVtstoN 0F TANDv coRponAloN RadioFans.CN 收音机爱 好者资料库 CONTENTS 1 . SPECIFICATIONS 2 2. BLOCK DIAGRAM 3 3. ALIGNMENT PROCEDURE 4 4. ALIGNMENT POINTS 5 5. TROUBLESHOOTTNG . 6 6. TUNEB BOARD OO42 . .7 - I 7, MAIN AMP BOABD OO45 9 8. TONE AMP i:1.r:iilrl:i:ilqa.t:tiltitt:jrlti:e:i !rl!

3、r:!i:lli;alilil;ri,ilrq:.1:i11llii:lljl; ilit tLt6 rir lr.;, r. i;i t BOARD 0045 (TOP VrEW) ,$j*i, f$gll:$i OARD OO45 (BOTTOM VIEW) TONE AMP 18 -20 +50 -10 x20 tl0 +75 -10 +50 -10 tl0 +75 -10 Polyester Ceramic Ceramic Electrolytic Polyester Electrolytic Ceramic Electrolytic Electrolytic Ceramic Elec

4、trolytic Polyester Ceramic Electrolytic Ceramic Electrolytic 12 Ref. No. Value (F) Voltage (v) Toler- ance %t Material C906a,b C907a,b C908a,b C909a,b C910a,b C911a,b C9 I 2a,b C913a,b C914a,b C915a,b c91 6 cgl 7 1 80P 1 800P 3300P 6800P 0.039p 0.033p 3300P 1p 2.2p 10P 220p 330p 50 25 50 25 t10 +75

5、-10 tl0 +50 -10 Ceramic Polyester Electrolytic Ceramic Electrolytic DIODES Ref. No.Type No. R/S Part No. Mf rs Part No. Manufacturer D 101 D102 0201 D202 D203 0204 0205 0206 D207 D209 0301 D302 D401 D60I D602a,b D603a,b D801 0802 0803 0804 D805 D806 0807 0808 0809 081 0 D8l 1 081 2 081 3 0851 0701 D

6、702 1 52687 152473 1 N6OP r s2473 KB1 62 ,u,!:, 1 N6()P Not Used 1 52473 1 N60 1 S2473 w03c RDllE w03c STV-3H Not Used w03c 55VB-20 rx-0302 rx-0299 lx-0162 rx-0r 62 rx-0299 lx-0299 DX-0685 rK0299 rx-0299 DX-0299 DX-0299 DX-0299 DX-0r 62 DX-0299 DX-0299 D)(0161 DX0299 DX-0525 DX0405 DX-0525 DX-0525 D

7、X-0525 DX-0525 DX-0525 DX.O52E DX-0525 DX-044i 30600560 3060041 0 3060001 1 3060041 0 30600500 3060041 0 3060001 1 3060041 0 306000r 0 3060041 0 3060087 1 30600752 3060087r 30600881 30600871 30600981 JRC Toyo Electronics UNISON Toyo Electronics UN ISON Toyo Electronics UN ISON Toyo Electronics UN IS

8、ON Toyo Electronics Hitachi NEC Hitachi San ken Hitachi Shindehgen CERAMIC FILTERS Ref. No.Description R/S Part No. Mf rs Part No. cF201 cF202 cF203 cF401 FM IFT SFEl().7MA , , AM IFT CFT455B c-0546 c-0546 3530001 2 35704061 COILS :u, FM ANT. Coil 129A FM RF Coil 1278 1288 FM OSC Coil 1l4L Choke Coi

9、l Choke Coil 180J AM RF Coil 122B AM 0SC Coil4l5L AM Bar Antenna Coil Choke Coil 8pH 33pH FM IFT 2(7A FM IFT 221 D Power Transf ormer (U L) , (CSA) (Europe/Australia) cA-3865 cA.4906 cA-4907 cA.4565 cB-2121 c-071 3 cA-4753 cA-4755 cA-0290 cB-2299 cA-3100 cA-7830 cA-7831 TA-0580 35501 291 35501272 35

10、50 1 282 35501 146 35500070 3550031 0 35501222 355041 56 354005r 1 355001 70 355001 60 3570207 1 35702214 35900206 3590021 7 3590021 I FI LTERS Ref. No.Description R/S Part No. Mfrs Part No. LPF3()l LPF3()2 Low Pass Filter BL-21Ec-086435000080 13 INTEGRATED CIRCUITS Ref. No.Type No.Part No.Manufactu

11、 rer r c201 r c30r tc401 lC50l a,b r c701 1A1230 HAr 1 96 pPC30C NJM4558D.D NJM4558D 30900380 3090041 0 30900350 30900363 30900361 Sanyo Hitachi NEC JRC JRC RES ISTORS Ref. No. Value (,o) Wattage (w) Toler- ance %l Material R 101 R 102 R 103 R 104 R 105 R 106 B 107 R 108 R 109 R110 R111 R112 Rll3 R1

12、14 R115 R 151 R201 R202 R203 R204 R205 R206 R207 R208 R209 R21 0 R211 R212 R21 3 R214 8215 R21 6 R217 R21 B R21 I R220 R221 R222 R223 R224 R225 R226 R227 R228 R229 R230 R23 1 R232 R30r R302 R303 R304 R305 R306 R307 R308 R309 R? 1n 68K 150 82 3.3K 22K 1K 12K 10K 2.7K 100 560K 330K 390K 100 220 1K 3.3

13、 K 560 330 10 390 100 10K 220 180 1 50K r.5K 220K 180K 15K 47K 1 80K 21K 180K 3.3K 2.2K 6.8K 100K 22K 100K 27K 220K 10M 2.zlti 12K Not Used 220K 100 1.8K 5.6K 22K 1K 31,* u;l* 39K 114 114 114 t5 +E t5 Carbon Carbon Carbon LAMPS Ref. No.Description R/S Part No. Mf rs Part No. PLl PL2 PL3 PL4 PL5 Dial

14、 Lamp 8V 0.3A , t, Meter Lamp 8V 0.254 , L-0718 x-7338 37008041 3700801 I LIGHT EMITTING DIODES Ref. No.Type No. R/S Part No. Part No. Manu- factu rer B75r D752 D753 D754 D755 0756 G D.4-203 R D)x-074;8A211-49064AStanley METER Ref. No.Description R/S Part No. Mf rs Part No. M1TUNING MeterM-031 56020

15、001 I RELAY Ref. No.Description R/S Part No. Mfrs Part No. R L8()1Relay 264D02404CSR-8083 82000060 14 Ref. No. Value (o) Wattage (w) Toler- ance P/1 Material R31 1 R31 2 R313 R314 R31 5 R31 6 R31 7 R31 I R319 R320 R321 R322 R401 R402 R403 R404 R405 R406 R407 R408 8409 R41 0 R41 1 R412 R4r 3 R414 R41

16、 5 841 6 R41 7 R4r I R41 I R420 R421 R501a,b R502a,b R 503a,b R504a,b R505a,b R506a,b B 507a,b R508 R509 R510a,b R601a,b R602a,b R603a,b R604a,b B605a,b R606a,b R607a,b R608a,b r00K 3,;3K 220K 2.2K 3.3K 390K 2.2K 3.3K 390K 1K 1 00K 100 K 3.9K 1.8K 2.2K 390K 68K 82K 47K 10K 560 10K 22K Not Used 680K

17、3.3 K 330 1 00K 15K 390 1.8K 2.2K 1 00K 1 00K 1.5K 820 750 47K 560K 1;9K 1 00K 270K 2.2K 220K 1;PK 33K l0K 2.7K 114 114 114 114 114 t5 t5 t5 t5 t5 Carbon Carbon Carbon Carbon Carbon No.Ref. Value (o) Wattage (w) Toler- ance P/l Material R609a,b R610a,b R611a,b R61 2a,b R613a,b R614a,b R615a,b B616a,

18、b R61 7a,b R618a,b R61 9a,b B620a,b B621a,b R622a,b R623a,b R624a,b R625a,b R626a,b R627a,b R628a,b R651 a,b R701 R702 R703 R704 R705 R706 R707 R708 R709 R710 R71 1 R712 R71 3 R714 R71 5 R716 B7l7 R718 R71 I B731a,b R732a,b R733a,b R734a,b R735a,b R736a,b R737a,b R738a,b R739a,b R740a,b R741a,b R742

19、a,b R751a.b 1 00K 3K 5.6 K 6.8K 2.2K r00 1K 100 300 100 300 t5 1;?K 0.47 470 47K 470K 19K 1 00K 680 820K 2.7K 10K 2.2K 33K 12K t0K 330 K 1.8K 3.3K 1.5K 470K 10K 5;9K 2.ztrii 6.8 K 47K 4.7K 820K 47K 10 10 22K 820 114 E 1 3 2 114 114 t5 tl0 t5 t5 r5 t5 t5 Carbon Wire Wound Metal Wire Wound Metal Carbo

20、n Carbon 15 Ref. No. Value (o) Wattage (w) Toler- ance %l Material R80t R802 R803 R804 8805 R806 R807 R808 R809 R81 0 R81 1 R81 2 R813 R814 B8r 5 R81 6 R81 7 R851 R901a,b R902a,b R903a,b R904a,b R905a,b R906a,b R907a,b R908a,b R909a,b R910a,b B911a,b R912a,b R913a,b R9l4a,b R91Sa,b R916a,b R917a,b R

21、918a,b R919a,b R920a,b R921a,b R922a,b R923 R924 470 10K 220K 27K 39K 2!,K 220 27K 1.2K 2tK 1.2K 220 2.2K l0 1.8K 2.zvi 3.3K 820K 4.7 K 39K 6.8K 22K 3.9K Not Used a:!K 6;9K lTK 220K 1M 4.7K Not Used 1 00K 100 1K 15K 1 114 1 114 112 114 114 114 t5 tl0 t5 t5 t5 Metal Carbon Solid Carbon Carbon Metal C

22、arbon Carbon SWITCHES Ref. No.Description H/S Part No. Mf rs Part No. SI s2 S3 s4 S5 S6 s7 S8 s9 sl0 s11 sl2 POWER/SPEAKERS SE LECTO H TAPE MONITOR 1 ,r2 FM 25pS MONO LOUDNESS FI LTE R_H I FI LTER_LO AUTO-M PHONO LEVEL Thermal Protector (UL) , (CSA) s-0839 s-0781 s-0782 s-0783 s-223r HB-5r 16 27 1 0

23、01 38 27100137 27200088 27200089 27300008 307001 90 307001 60 THERMISTOR Ref. No.Description R/S Part No. Mfrs Part No. TH201sDT-1 000 30700200 16 TRANSISTORS Ref. No.Type No.Part No.Manufacturer Substitute Type No.Manufacturer TRlOI TR 102 TR 103 TR20l TR2(2 TR2()3 TB2()4 TR205 TR3Ol TR3O2 TR4Ol TR

24、402 TR4O3 TR4O4 TR601a,b TR602a,b TR603a,b TR604a,b TR60Sa,b TR606a,b TR607a,b TR608a,b TR609a,b TR61Oa,b TR70l TR702 TH801 TR8(2 TR803 TR8()4 TR805 TR806 TR8()7 TR8()8 T R901a,b TR902a,b TR903a,b 3SK45 (B or C) 25C 1 674 25C1 675( L) 25C930(D) 25C536(F) 2SA733 (P or 0) 2SC536 (F) 25K44 (B or C) 25C

25、536(F) 2SA841 (BL) 2SC1 951 21C1567(R) 2SC945( L-P) 2SA733(0 or P) 2SA794(R) 2SD426(0) 25C2021 2SD+,71(K or l) 2SD43B(E or F) 2SCg,45(L.P) 258560(E or F) 2SA733(0 or P) 2SC945( L-P) 250438(E or F) 250330(E) 25Ct681 (BL) 2SA841(BL) 2SC1681(BL) 30400071 30201 1 1 1 30201121 30200211 302001 31 30000425

26、 302001 3 1 304001 03 30200 1 3 1 30000422 30201 261 30201 023 30201 031 30000423 3000041 3 30300291 30201 323 30300280 30300250 30200522 301 00041 30000423 30200522 30300250 30300r 92 3020 1 1 32 30000442 30201 132 Hitachi NEC NEC Sanyo Sanyo NEC Sanyo Sanyo Sanyo Toshiba SONY Matsushita N-EC Matsu

27、shita Sony Toyo Electronics N-EC Sanyo N-EC Sanyo N-EC Sanyo Sanyo Toshiba 35K41 (Korl) 25C945( L-P) 25C945 (L-P) 2SC945( L-P) ,:, 254640(E) 25C1124(21 25C536(F) 2SA706(2) 25C1 509( R) 2SC536(F) 2SA777 ( R ) 25C536(F) 25C1 509(R) 2SC1 061 (B) 2SC1222lEl 25A640(E) 2SC1222lEl NEC N-EC NEC NEC NEC Mats

28、ushita Sanyo Matsushita Sanyo Matsushita Hitachi N-EC Sony Sanyo Sony 17 VARIABLE CAPACITORS Ref. No.Description R/S Part No. Mf rs Part No. vcl 01 TCl 04 Tuning Gang G774J1 18 (lncludes TC1 01 -TCl 03, TC105-TC107 Trimmer ECV.1ZW1()P32 c-451 6 c- 0424 26370081 2601 0023 Ref. No.Description R/S Part

29、 No. Mf rs Part No. VR4(1 VR4()2 V R601a,b V R901a,b V R902a,b V R903a,b V R951-1a VR951-2a vR951-t b v R951-2b WIDE-BAND AM Sensitivity 10ko/B AM 0utput Level Control 50ko/B Bias Control 1kQ/B TREBLE lO()KO/B MrD 100ko/B BASS l ()()KO/B V0 LUME-L channel 200ko/B V0 LUME-L channel 200ko/B V0LUME-R c

30、hannel 200ks/B V0LUME-R channel 200ko/B P-6367 P-6369 P-6247 P-5006 P-1699 281 00061 281 00096 281 00037 280001 30 28200020 VARIABLE RESISTORS Ref. No.Description R/S Part No. Mf rs Part No. VR2()1 vR202 VR30l VR3O2 Auto Stereo & Muting Sensitivity 100ko/B FM Signal Meter Sensitivity 100kSl/B 76kHz

31、Frequency Adjust 10k0/B MPX Separation 100ko/B P-6368 P-6368 P-6367 P-6368 281 00063 281 00063 281 00061 28r 00063 COMPLETE PCB ASSEMBLIES Ref. No.Description R/S Part No.Mfrs Part No. 5030 0042 0043 0045 6044 8030 7126 7127 EO AMP BOARD TUNEB BOARD TONE AMP & AUTO-M BOARD MAIN AMP BOARD AUDIO DRIVE

32、R AMP BOARD POWER SUPPLY BOARD LED INDICATOR BOARD METER LAMP BOARD x-7609 x-7608 x-7611 x-7610 x-7614 x-7612 x-7248 x-7338 9750301 0 97004240 97004320 97004540 9760441 0 97803020 97712610 97712710 18 Ref. No. Description R/S Part No. Mf rs Part No. 1 2 3 4 5 6 7 I I 10 11 12 13 14 15 18 t9 20 21 22

33、 I nl 241 25 I 26 I 27 I 28 I 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 Wire Wrap Pin 13mm , l9mm Jumper Wire JPW-03 , JPW.O2 P.C-8. Connector Socket 5P 9P Heat Sink P.C. Board Bracket Thermal Protector Ul2 90C Thermal Protector Bracket P.C.B. Connector Plug 9P Back Panel 12P RCA J

34、ack Fuseholder FH002 (UL) AC 0utlet lR02 (UL) Bar Antenna Clamper Fuse ST-2 4A 125V (UL) 4P Screw Terminal 10P Speaker Terminal AC Cord Strain Relief SR4P.4 Cord Strain Relief SR4K-4 AC Cord with Plug Phono Ground Terminal Line Cord Antenna Line Cord Antenna Fiber Dial Scale Dial Shaft Assembly Tuni

35、ng Meter Pulley Shaft E Plastic Pulley Fiber Washer Fiber lnsulator for Dial Shaft Phone Jack Meter Filter (Red) Plastic Rivet Wire Bundler 150 110 , 8D Metal Bracket for Power Transformer Angle Bracket for Pulley Dial Drum Spring Coil for Dial Drum Terminal Strip l Pl Ll P Pulley Shaft G Metal Brac

36、ket for Wooden Cabinet Dial Pointer Mylar Sheet for Dial Pointer H B-51 23 H B-5124 D-0365 R 8-5691 J-4438 D-3244 D-1 193 H B-5127 RT-1 1 94 HB-0955 I HB-0e45 I I I J-6435 I J-6436 | HH-0255 | HB-511s I H B-51 16 I HB-5117 | J-6530 I z-3851 I J-0721 I F-l017 I J-6438 | HB-7157 I I HF-l087 I J-4533 I

37、 J-4430 H B-0954 HB-3212 w-1460 H B-0953 H-3533 H-1901 c-0325 D-3243 M-0315 H B-5107 D-0250 H 0-8037 H B-0963 l-1722 H B-51 23 1 9044001 19043001 1 9000001 1 9000002 r 9074001 1 9075001 1 5079002 63341 002 307001 90 63255001 3601 1 001 11757 A02 33120240 34032001 34048001 84290001 38334140 53032500

38、531 00240 74089001 74035001 621 1 0004 5301 2300 631 01 001 7501 7002 20098003 23048002 6020001 I 24003001 84085001 75048001 75047001 3303 1 300 74122001 84254001 84252001 84250001 84249001 63342001 63343001 2r 01 3001 1 9070001 51 025002 24004002 6328700r 25044001 84276001 MISCELLANEOUS PARTS LIST

39、- Ref. No. Description R/S Part No. Mf rs Part No. 49 50 51 52 53 54 55 56 57 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 7B 77 78 79 80 81 82 83 84 85 86 87 88 89 90 9l 92 93 94 P.C. Board Support Rubber Angle Bracket for Heat Sink (R) Angle Bracket for Heat Sink (L) lnsulation Fiber (B) Wir

40、e Clumper Fiber Barrier (C) Terminal Strip I LI P Small lP1LlP Small , 2P1L1Pl L2P Snap Bushing Front Panel Assembly Tuning Knob SELECTOR Knob L Ch. Knob for Tone Control R Ch. Knob for Tone Control V0LUME Knob (R ch.) V0LUME Knob (L ch.) Push Switch Knob Wooden Cabinet Bottom Plate Plastic Foot Pla

41、stic Washer Acryl Board for Dial Lamps Metal Fitting for Acryl Board Light Shield Fiber P.C.B. Connector Plug 5P Screw M4x45 Flat Washer M4 Lock Nut Binding Head Screw M3x8 Binding Head TP Screw M3xB Screw M3x6 Nut M3 Spring Washer M3 Nut M4 Flat Washer M4 Spring Washer M4 Tapping Screw B M3x8 Tappi

42、ng Screw B M3x10 Tapping Screw M4x15 Black Screw M3xB TH Plastic Pulley (Small) Screw M5x15 Metal Fitting for Meter Ground Lug M3 Wired-in Fuse 2A 125V H D-7003 H D-8017 HD-7004 H D-8019 H D-3049 D-0243 HD-2119 H B-0958 H3532 H B-71 59 H B-5121 HB-5122 H B-51 27 H B-5128 H B-3229 H B-5125 z-3852 K-2

43、303 K-2304 K-2305 K-2306 K-2394 K-2393 K-2302 z-2933 2.2930 F-0183 H B-7160 H B-51 30 H B-5132 J-6494 74121002 63339001 63340001 75071002 73075001 75079001 51027002 51041002 51 084002 74036001 1 0757A03 29237001 29238001 29239001 29240003 29241003 29242003 29206002 8507 1 004 05049001 74074001 84092

44、001 71 039001 63345001 7321 8001 3601 0001 40340451 42120421 40000030 40430085 40630085 40330061 41 1 13070 42250341 41114010 42120421 42250441 40000086 40000087 406401 55 40000086 8401 0001 403501 51 1 9041 002 51 036001 383541 20 19 it. , !.- t i ,+ RADTO SHACK Ei DrvrsroN oF rANDy cORpoRAflON U.S.A.: FORT WORTH, TEXAS 7dA2 CANADA: BARRIE, ONTARTO L4M 4Ws AUSTRAIIA TANDY CORPORATION BELGIUM U. K. 280-316 VICTIRIA ROAI) PARC INDUSTRIET t)E NANINNE BII-STON ROAO RYOATMERE, N.S.W. 2116 5I4O NANINNE WEDNESBURY. WEST MIDLANDS WSl() 7JN -/ 9A7 Printed in Japan