Teac-AG370-rec-sm 维修电路原理图.pdf

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1、A AG G- -3 37 70 0SERVICE MANUALAM/FM Stereo ReceiverEffective : April, 2003S-0091ANOTESPC boards shown are viewed from parts side.The parts with no reference number or no parts number in theexploded views are not supplied.As regards the resistors and capacitors, refer to the circuit diagramscontain

2、ed in this manual.Parts marked with this sign are safety critical components. Theymust be replaced with identical components - refer to the appropriateparts list and ensure exact replacement.CONTENTS1 SPECIFICATIONS 22 ADJUSTMENTS AND CHECKS 33 EXPLODED VIEWS AND PARTS LIST 64 PC BOARDS AND PARTS LI

3、ST 8RadioFans.CN 收音机爱 好者资料库1 SPECIFICATIONS2Amplifier SectionOutput Power . 50 + 50 watts RMS (0.9 % THD, 1 kHz, 8 ohms)Total Harmonic Distortion. 0.05 % (at 45 watts,1 kHz)Input Sensitivity/Impedance . PHONO: 4 mV/22 kohmsLINE: 270 mV/20 kohmsFrequency Response. PHONO: 20 Hz20 kHz, +/3 dBLINE: 20 H

4、z30 kHz, +1/3 dBSignal-to-Noise Ratio. PHONO: 60 dBLINE: 68 dBTone Control . BASS: +/9 dB at 100 HzTREBLE: +/7 dB at 10 kHzLoudness Control (Volume at 40 dB Position).+7 dB at 100 Hz, +5 dB at 10 kHzFM Tuner Section(Without notes 98.1 MHz, 65 dBf)Tuning Range . 87.5 MHz108.0 MHz (100 kHz steps)Usabl

5、e Sensitivity (IHF). Mono: 20 dBf50 dB Quieting Sensitivity. Mono: 39 dBf, Stereo: 46 dBfCapture Ratio . 2.8 dBImage Rejection Ratio . 20 dBAM Suppresion Ratio. 48 dBHarmonic Distortion (1 kHz). Mono: 0.4 %, Stereo: 0.5 %Frequency Response. 30 Hz15 kHz, +2/3 dBStereo Separation (1 kHz) . 35 dBSignal

6、-to-Noise Ratio . Mono: 57 dB, Stereo: 55 dBAM Tuner SectionTuning Range. 520 kHz1,720 kHz (10 kHz steps)Usable Sensitivity . 55 dB/mTotal Harmonic Distortion . 1 % at 85 dB/mSignal-to-Noise Ratio. 48 dBGeneralPower Requirements. 120 V/230 V, 50-60 HzPower Consumption. 120 WAC Outlet . Unswitched x

7、1, 100 W max (1 A max)Dimensions (W x H x D) . 17-1/8 x 5-1/8 x 12-5/8(435 x 130 x 320 mm)Weight (net) . 15-7/16 lbs (7.0 kg)Standard Accessories . AM Loop Antenna x 1FM ”T” Type Antenna x 1 Design and specifications are subject to change without notice.Voltage Conversion(General export models only)

8、Be sure to remove the power cord from the AC outlet beforerepositioning the voltage converter switch.1. Locate the voltage selector on the rear panel.2. Using a flat-bladed screwdriver, set to the appropriate230V or 120V position according to your area.IN NORTH AMERICA USE ONLY ON 120 V SUPPLY.Radio

9、Fans.CN 收音机爱 好者资料库2 ADJUSTMENTS AND CHECKS32-1 AMPLIFIER SECTIONBias Current Adjustment1. Turn the unit on, and set the input selector switch to CD.2. Set 7VR1 and 7VR2 to the center position.3. Connect the DC voltmeter as shown below after preheating for10 minutes, and adjust 7VR1 (Lch) so that the

10、 voltagebecomes 3.31.3mV.4. Adjust 7VR2 (Rch) in the same way.7VR17VR27R467R447R457R430.33/5W0.33/5W0.33/5W0.33/5WMAIN PCBDC voltmeterDC voltmeter4ITEMSETTINGADJUSTMENTPOINTSADJUST2. AM Sensitivity600 kHz/1500 kHz50 dB/m400 Hz (30 % Mod)REC OUTAM 600 kHz2T1 (BLK)Max.3. AM IF1000 kHz50 dB/m400 Hz (30

11、 % Mod)REC OUTAM 1000 kHz2T3 (WHT)Max.4. FM Sensitivity90 MHz1020 dBf1 kHz (100 % Mod)REC OUTFM 90 MHz2L2 (4.5T)Max.5. FM Distortion98 MHz60 dBf1 kHz (100 % Mod)REC OUTFM 98 MHz2T4 (PINK)Min. distortion6. FM Stereo 98 MHz60 dBfStereo signal L-RREC OUTFM 98 MHz2T5, 2T6Min. distortion1. VT Adjust2R19

12、(VT)2J2 (GND)FM 87.5 MHz2L3 (3.5T)DC 1.00.05VINPUTOUTPUTAG-370After adjusting 2TC2, readjust 2T1 at 600 kHz.AM 1500 kHz2TC2Max.AM 1720 kHzAM 530 kHzFM 108.0 MHzCheck2T2 (RED)Check8.0VDC 1.10.05VDC 8.00.5V2-2 TUNER SECTION5AC VoltmeterFM Signal GeneratorStereo Signal GeneratorDistortion AnalyzerDEGFA

13、C VoltmeterAM Signal GeneratorBCAM LoopAntenna60cm2T32T62T52T22T12T42L22L32TC22R192J2TUNER PCB+ DC VoltmeterA3 EXPLODED VIEWS AND PARTS LIST6123456789qwertyuiopasdfghjkl;zxcvbnm,./!#$7EXPLODED VIEW LISTREF.NO.PARTS NO.DESCRIPTIONREMARKS1 9A06536200MASTER VR KNOB 53W360900 2 9A06900300INDICATOR 51010

14、4200 3 9A09581400TONE CONTROL KNOB 530503000 4 9A09580800DISPLAY LENS 510503600 5 9A09580700PANEL 510503500 6 9A09580900FUNCTION KEY 530502500 7 9A09581200MEMORY KEY 530502600 8 9A09581000BAND KEY 530502900 9 9A09592000SILICON RUBBER,T0-3P2 322228370 10-1 9A09590200TR,2SD1047E 230104705 10-2 9A09590

15、300TR,2SB817E 230817005 11 9A09581100TUNING KEY 530502800 12 9A06536000LOUD KNOB 53W360700 13 9A09581300AUTO/MANUAL KEY 530502700 14 9A09592900VFD DISPLAY 250370000 15 9A09579810HEADPHONO PCB ASSY 033700601 16 9A09579910SELECT PCB ASSY 033700401 17 9A07063400SPEAKER SWITCH KNOB 53W361000 18 9A095800

16、10SELECT PCB ASSY 033700501 19 9A06602800POWER SWITCH 180222501 20 9A06535900POWER KNOB 530049400 21 9A09579410CONTROL PCB ASSY 033700201 22 9A06536400LEG(GOLD) 540082601 23 9A06536300LEG(BLACK) 540082600 24 9A09581600BOTTOM COVER 520504800 25 9A06901000SIDE BRACKET(L) 52W360300 26 9A09581800SIDE BR

17、ACKET(R) 520505100 27 9A09581900TOP COVER 520505000 28 9A09579310MAIN PCB ASSY 033700101 29 9A09591800HEAT SINK(A) 560502100 30 9A06901200H/S BRACKET 540082800 31 9A09581700REAR COVER 520504900 32 9A09580100POWER TRANSFORMER157631522 33 9A06904300GND TERMINAL,M3 320018601 34 9A06900600CORD BUSHING 5

18、50011700 35 9A06602900AC SOCKET 26CS18401 36 9A07064400SPACER SUPPORT 550098819 37 9A09579510TUNER PCB ASSY 033700301 38 9A09591700CABLE CLIP 550505500 39 9A09591600PCB SUPPORT 550505200 40 9A06900700NAME PLATE 510104300 41 9A09580200AC POWER CORD 210183011 42 9A09579610POWER SOCKET PCB ASSY 0337007

19、01 43 9A09579710POWER SELECT SW PCB ASSY033700801 44 9A09587200C,275V 0.01UF136M103M2 INCLUDED ACCESSORIESREF.NO.PARTS NO.DESCRIPTIONREMARKS9A09471700OWNERS MANUAL,EFSP 600520205 9A06902500FM ANT 59W360100 9A06902600AM ANT 59W360200 84 PC BOARDS AND PARTS LISTMAIN PCB9SP SEL PCBSP SEL PCBHEADPHONE P

20、CBPOW SEL PCBPOWER PCBFRONT PCBTUNER PCBMAIN PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579310MAIN PCB ASSY 9A09592100MAIN PCB 9A06534100SP JACK 9A06534200RCA JACK,6P 9A06534300RCA JACK,4P 9A06896100FUSE CLIP 9A06897300LEAD PIN,3P 9A06901200H/S BRACKET 9A09591600PCB SUPPORT 9A09591700CABLE CLIP 9A095918

21、00HEAT SINK(A) 9A09591900HEAT SINK(B) 9A09592000SILICON RUBBER,T0-3P2 1C1 9A09586700C,ELEC 35V 100UF M 1C4-5 9A09586600C,ELEC 25V 2200UF M 1C12 9A09586500C,ELEC 25V 100UF M 1C14-15 9A09587000C,ELEC 58V 6800UF M 1D1-8 9A09589300DIODE,IN4004 1D9-12 9A09589400DIODE,IN5404 1D13-14 9A09589500DIODE,IN4148

22、 1D15-18 9A09589300DIODE,IN4004 1D19 9A09589100DIODE,ZENER 24V 1W 1FU1-2 9A09591200FUSE,5A 250V SLOW BLOW1N1 9A09590800IC,L7812CV 1N2 9A09590900IC,L7912CV 1N3 9A09590700IC,L7805CV 3D1-2 9A09588800DIODE,ZENER 6V8 1/2W 3N1 9A09590400IC,TC4052BP 3N2 9A09590500IC,TC4066BP 3V1-3 9A09589600TR,2SC1815GR 4N

23、1 9A09590600IC,4560D 5N1 9A09590600IC,4560D 6N1 9A09590600IC,4560D 7C28 9A09587100C,ELEC 63V 47UF M 7D1-4 9A09589000DIODE,ZENER 24V 1/2W 7D5-6 9A09589500DIODE,IN4148 7D7 9A09589200DIODE,ZENER 30V 1/2W 7D8 9A09589500DIODE,IN4148 7D9 9A09588900DIODE,ZENER 12V 1/2W 7L1-2 9A09591000COIL,SPRING 1.5UH7R43

24、-46 9A09585600R,CEMENT 5W R33 J 7R61-62 9A09585400R,2W 6R1 J 7R70 9A09585300R,0.5W 100 J 7R77-78 9A09585500R,2W 10 J 7V1-4 9A09589700TR,2N5551 7V5-10 9A09589800TR,2N5401 7V11-14 9A09589700TR,2N5551 7V15-16 9A09589900TR,3DA4381 7V17-18 9A09590000TR,3CA1667 7V19-20 9A09590200TR,2SD1047E 7V21-22 9A0959

25、0300TR,2SB817E 7V23-24 9A09589700TR,2N5551 7V25 9A09589800TR,2N5401 7V26-29 9A09590100TR,2SC8050D 7VR1-2 9A09585700VR,SEMI-FIXED 300 J REL1 9A09591100RELAY,12V 5ACONTROL PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579410CONTROL PCB ASSY 9A09593800FRONT PCB 9A09592900VFD DISPLAY 9A09593900VFD SHIELD CASE

26、6S1 9A09593000SW,LOUDNESS 6VR1-2 9A06534400VR,100KBX2 6VR3 9A06604000VR,50KAX2 6VR4 9A06534500VR,100KW 8D1 9A09589500DIODE,IN4148 8D2 9A09592400DIODE,ZENER 5V1 1/2W 8D3-8 9A09589500DIODE,IN4148 8G1 9A09592800OSC,CRYSTAL 4.433M8N1 9A09592500IC,HT48R50A-1 8N2 9A09592600IC,HT24LC02 8N3 9A09592700IC,PT6

27、312LQ SW1-20 9A09593100SW,TACT TUNER PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579510TUNER PCB ASSY 9A09625000TUNER PCB 9A09625100TUNER SHIELD CASE 2D1-2 9A09589500DIODE,IN4148 2G1 9A09622100FILTER,CERAMIC L10.7MS2 R2G2 9A09622200FILTER,CERAMIC SFU450B 2G3 9A09622100FILTER,CERAMIC L10.7MS2 R2G4 9A09622

28、300OSC,CRYSTAL 4.5MHZ2L1 9A09622400COIL,SPRING 3.5T M4.5 2L2 9A09622500COIL,SPRING 4.5T M3.5 2L3 9A09622600COIL,SPRING 3.5T M3.5 2L4 9A09622700INDUCTOR,AL0410 1022L5 9A09622800INDUCTOR,AL0410 2212N1 9A09622900IC,TA2149N 2N2 9A09623000IC,TC9257F 2T1 9A09623800IFT,AM RF10B(BLK) 2T2 9A09623900IFT,AM OS

29、C 7B(RED) 2T3 9A09624000IFT,AM IFT 7B(WHT) 2T4 9A09624100IFT,FM DET 7B(PNK) 2T5-6 9A09624200IFT,MPX 8B(BLK) 2TC2 9A09624300SVC,CYM1-2/7 2V1 9A09624400FET,2SK161GR 2V2 9A09624500TR,2SC9018I 2V3 9A09624600TR,2SC9014C 2V4-5 9A09589600TR,2SC1815GR 2V6-7 9A09624600TR,2SC9014C 2V8 9A09624700TR,2SC9018H 2V

30、D1-2 9A09624800DIODE,VARACTOR V1043 2VD3-4 9A09624900DIODE,VARACTOR V149B 2X1 9A07129000ANT JACK 10SELECT PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579910SELECT PCB ASSY 9A09626300SP SEL PCB 2S1 9A09625800SP SELECTOR SW SELECT PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09580010SELECT PCB ASSY 9A09626400SP SE

31、L PCB 2S2 9A09625800SP SELECTOR SW HEADPHONE PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579810HEADPHONE PCB ASSY 9A09625700HEADPHONE PCB 9A06901600H/P JACK HOLDER 7D11-12 9A09589500DIODE,IN4148 7K1 9A06535000HEAD PHONE JACK 7R75-76 9A06889700R,1/2W 330 POWER SELECT SW PCB ASSYREF.NO.PARTS NO.DESCRIPTION

32、9A09579710POWER SELECT SW PCB ASSY9A09625400POW SEL PCB 9A07069700POWER CHANGE SWITCH POWER SOCKET PCB ASSYREF.NO.PARTS NO.DESCRIPTION9A09579610POWER SOCKET PCB ASSY 9A09625300POWER PCB 9A06602900AC SOCKET 9A06896100FUSE CLIP FU1 9A09625200FUSE,2.5A 250V SLOW BLOW1145231CBASCHEMATIC DIAGRAMAG-370MAI

33、N PCB (1/2)1 st Issue; January 20031234561XS16VR4100K+12-12V-12V+12+12-12V-12V+124C182204C172204R16100K4R15100K3D26V83D16V81I/O11O/I22O/I32I/O42C53C6VSS73I/O83O/I94O/I104I/O114C121C13VDD143N2CD40664R12180K4R43906C14U7/50V6N1-24558D6N1-14558D6C161046C151046C141026C131026C68206C58206C8476C7476C41536C3

34、1536C124U7/50V6C114U7/50V6C10100U/16V6C9100U/16V6C24U7/50V6R241006R131K6R141K6R71K6R81K6R110K6R210K6R915K6R1015K6R510K6R610K6R333K6R433K6R1133K6R1233K6R151K6R161K6R175K66R185K66R195K66R205K66R221K6R211K4R181004C20100U/16V4N1-24558D4N1-14558D5C24U7/50V5C14U7/50V5C8100U/16V5C7100U/16V5R141K5R131K5R121

35、005R111005R1033K5R933K5R815K5R715K5R6100K5R5100K5R447K5R347K5R21K5R11K3C14713C24713C34713C44713C54713C64713C9223C10223C74713C84713R81K3R71K3R63K93R53K93R43K93R33K93R23K93R13K94R141K3C121043C111043V1C18153V3C18153V2C1815CD/LPHONOCD/RLREC/LAUX/LAUX/RTAPE/LREC/RTAPE/R4R14704R24704R522K4R622K4C14714C247

36、14C31814C41814C51814C61814C91024C101024C132234C142234C115624C125624R912K4R1012K4R72704R82704C747U/16V4C154U74C164U74C19100U/16V4C847U/16V4R131K5C322U/16V5C422U/16V3R20100K3R933K3R1033K3R1133K3R1233K3R1333K3R1433K3R1710K3R1810K3R1910K5N1-14558D5N1-24558D6R231004R171004R33904R11180KY01Y22Y3Y34Y15S6VEE

37、7VSS8A19A010X311X012X13X114X215VDD163N1CD40521231XS63R2133K3R2233K3R151003R161001231XP101231XS31231XP36S16VR350KB1231XP46VR1-1100KB6VR1-2100KB6VR2-1100KB6VR2-2100KB6VR16VR21234561XS2RGL432432561561R G L6417325LGRBASSTREBLEBASSTREBLE876543216574R123813245678TAPESW1SW2LGRBASSTREBLEAND1XP2AND 1XP1TO TU

38、NERAM/FM Stereo ReceiverA AG G- -3 37 70 045231CBASCHEMATIC DIAGRAMAG-370MAIN PCB (2/2), HEADPHONE PCB, SP SEL PCB, POWER PCB, POW SEL PCB7C3110P7C3010PS27R7810/2W7R7710/2W121XS10121XP101231XP91231XS9123451XP8123451XS8123451XP5123451XS51231XS72S2SPB1X1SPECKER7V255401S1POWER SWC1103/250VFU12.5A/250V1

39、C156800U/50V1R3 15K1C146800U/50V1C161041C171041R215K1D1054041D1154041D1254041D954047C221047C2833U/50V1D1540041D1840041D1441487R6910K7R701007R7347K7R7447K1C1310U/50V1R522K7C27220U/16V7C26220U/16V1D1341487R7210K7C254U7/50V7C231027R6356K7R5922K7V298050D7V288050D7V278050D7V268050D7C211047R625.1/2W7R6022

40、K7R615.1/2W7R7110K7C1747U/25V7R511K7R1522K7R191007R171007V155517R11K7C14U7/50V7R53K37R73K37R253K37R292207C547U/63V7V355517R91007R111007R1322K7V954017V15669A7V1952007V2119437V17649A7V1355517V1155517V554017V754017C91047C1330P7R313K37R331K57VR13007C1530P7R352207R213K37R233K37C747U/63V7C111047R273K37R49

41、33K7R372207R39337R430.33/5W7R450.33/5W7R471007R411007V2355517R533K37R5527K7C194U7/50V7L11.5uH7L21.5uH7C204U7/50V7R5627K7R543K37V2455517R421007R481007R460.33/5W7R440.33/5W7R40337R382207R5033K7R283K37C121047C847U/63V7R243K37R223K37R362207C1630P7VR23007R341K57R323K37C1430P7C101047V854017V654017V1255517

42、V1455517V18649A7V2219437V2052007V16669A7V1054017R1422K7R121007R101007V455517C647U/63V7R302207R263K37R83K37R63K37C24U7/50V7R21K7V255517R181007R201007R1622K7R521K7C1847U/25V7R4100K7C4100P7C3100P7R3100K7C2410U/50V7R672K77R683K3/1W7R64220K7D841487R65220K7R664K71XP151XP171D140041D240041D340041D440041C110

43、0U/35V1C21041R11001XP161D540041D640041D740041D840041C42200U/25V1C52200U/25V1C61041C71041N378M051N178121N279121C81041C91041C101000U/16V1C111000U/16V1C3470U/16V1D1640041D1740041R42K21C12100U/25VREL11FU15A/250V1FU25A/250V18732457K17R753307R763301231XS42S1SPA7D730V7D124V7D324V7D224V7D424V7D1012V7R5718K7

44、D541487D641487R5818K121XP12121XP13+12-12V7D1141487D1241487C29103/50V1D1924V1234561XS111C18100U/35V1R6100B/R-B/L-GA/R-A/L-RRGLLR RGLAC 120V/230VSEL.SWVOLTAGEDGNDSPASPB-24V0V AC2.5V2.5VDGND+5VLA/L-A/R-A/L+A/R+B/L+B/L-B/R+B/R-LGRA/L-A/R-GB/L-B/R-DGSPBSPBDGB/L-GB/R-+5VGG+12V1 st Issue; January 2003AM/FM

45、 Stereo ReceiverA AG G- -3 37 70 045231CBASCHEMATIC DIAGRAMAG-370TUNER PCB12341XS142L33.5T2L24.5T2X12T52C5152*2R121K2C37100U/10V2C282032L41022C202032D1IN41482L52212C432032C38100U/10V121XS132C452032C241022R202K2R212K2R222K2G44.5M2R232K42C41302C42302C441032R171K2C403U3/50V2V5C1815GR2V4C1815GR2C462032C

46、47100U/16V2C3947U/16V2R181K2R198K21231XS10121XS12XT1XTN2PERIOD3CLOCK4DATA5OT-16OT-27OT-38OT-49I/O-510I/O-611VDD12AMIN13FMIN14GND15IFIN216I/O-817I/O-718DO119DO2202N2TC9257F2C30100U/10V2C16203*2TC12/72VD1V1042VD3V149B2C261042C271042R113K32C361U/50V2R133K32C354U7/50V2C191022C221022C231022C211022R15300K

47、2R142K2R9100K2C104712C152032C9152R108K22R6 100K2C132032C4*72C61522R33K32R53K32C122032C81522C251042R41002R8100K2C142032R7100K2C71522R1622K2C34220U/10V2C334U7/50V2C324U7/50V2C176822C186822C3122U/16V2G1 L10.7M2G2 450B2R13302C29U1/50V2C3302C2332C1302L13.5T2R23302T32T22C111032VD2V1042V1K161GR2TC22/72T12V

48、D4V149B2V39014C2V29018IRFGND1RFIN2AMLCUT3MIXOUT4VCC5AMIF6FMIF7GND8AGC9QUOD10ROUT11LOUT12LPF213LPF114DETIN15DETO16IFREQ17ST18OSCO19AMOSC20FMOSC21AMRF22RFVCC23FMRF242N1TA2149N2C511532C491532C481532C501532T42C52203LOOP75FMAMRGL+12VG+5VGDATACLOCKPERIODST2V69014C2V79014C2R241002R271K52R281K52C53182T22R25

49、5102R265102G3L10.7M2V89018H2R29300K2R303302R313302C54222R32*242D2 IN41482C55471 st Issue; January 2003AM/FM Stereo ReceiverA AG G- -3 37 70 045231CBASCHEMATIC DIAGRAMAG-370FRONT PCBINSTRUCTIONS FOR SERVICE PERSONNELBEFORE RETURNING APPLIANCE TO THE CUSTOMER, MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUR

50、EMENTS TO DETERMINE THAT EXPOSEDPARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT.1234567891011121314 PC1PC0/TM0PG0/INTVSSPB0/BZPB1/BZPB2PB3PA0PA1PA2PA3PB4PB5PB6PB7PA4PA5PA6PA7OSC2/PG2OSC1/PG1VDDRESPC5/TM1PC4PC3PC215161718192021222324252627288G14.00M30P30P+5VHT24LC0256+5V100K104104DINSTBCLKDOUT